GADGETS GIZMOs

Video Surveillance Camera Technology

2008-09-23T21:12:00.000-07:00

by: Bill Wallmuller
Video surveillance cameras are more prevalent today than anytime in the past. Their use has surged along with the boom in technology as this new technology becomes cheaper and more sophisticated. There are numerous types and styles of surveillance cameras. For example, there dome cameras, hidden cameras, smoke detecting cameras, and "smart" cameras that are equipped with motion detectors, just to name a few.

Video surveillance cameras are classified according to the technology that is used in their design. CCTV [closed circuit TV] cameras are those that have a completely closed circuit and all the components are connected together. On the other hand, advanced digital cameras are those that connected by a circuit but can be located at any site around the world. Digital video recorders [DVRs] do not need VCR's and other recording equipment in order to capture or record on-site activities. The software is designed to automatically record unusual activity even in odd hours of the day.

You can find video surveillance cameras used in many different places. They are used in school buses and schools to monitor activities of students. You will also find them being used in retail establishments, public gathering places, traffic reporting, and many more places. Small hidden cameras know as nanny cams have been used successfully by parents concerned about their children's care from sitters and caretakers. Hidden cameras are also available for sale in “brick and mortar “stores and on the Internet. You find these cameras hidden in clocks, smoke detectors, and soft toys such as a teddy bear, just to name a few.

This style of camera is differentiated according to its effectiveness. A 360-degree revolving dome camera can capture images anywhere on the site. Infrared surveillance type cameras are found used by government and law enforcement agencies such as the SWAT for tailing suspects at night. They too are found mounted in police helicopters to aid them in searching suspects hidden in brush by either day or night.

Detective agencies and security agencies use these cameras to monitor people at their client's request. It is currently lawful in most areas to install a camera in a common public area and record public activities; however, there is a lot of debate over this subject. Even government agencies such as the Federal Bureau of Investigation [FBI] need a warrant in order to carry out video surveillance in private places or homes. Small hand held cameras, also available in the marketplace, help monitor the elderly and in nurseries and preschools where children are kept under watch.

Video surveillance cameras are available in the price range of $100 to $800 for the most part. However, it depends on the complexity of the technology used in them. Well-made fake cameras are also available for as less as $3, which act as deterrents for robbers and thieves but are not recommended in some applications.

Vizio VX32L 32" LCD HDTV Review

2008-08-29T09:37:00.000-07:00

by:yle Hahn

The Vizio 32" LCD HDTV cost around $500 or so, depending on where you buy it. I bought mine from Sam’s Club at around $520. I also purchased the wallmount for it. This is my first HDTV LCD TV that I have ever owned and I love it. It has dual HDMI output connections as well as VGA output connection to hook it to your PC or what not. I have hooked this up to my PC via DVI connection and the quality isn’t as good as I thought it would be, but still very good. If you get the perfect resolution set for this TV it would look flawless, especially with HDMI. The max resolution for the Vizio 32" is 1366 x 768 resolution. The HDMI cables run about $100, thats why I have not hooked this up via HDMI yet.

I currently have Dishnetwork (Non-HD) connected to my TV. If you are far away the TV looks EXCELLENT. When you get closer is when you start to see more of the pixels, but this is obviously caused by not having DishNetwork HD, and HDMI cables hooked up. My personal opinion on this TV is that for the price, you can not beat $500 for a 32" Hi-Definition TV. The TV has the capability to remove the base to allow mounthing on the wall. There are about 10 screws or so to fully mounth this TV to the wall. It was not much of a task at all. Pretty simple.

Here is a bit more information about what Outputs/Inputs the TV provides as well as size information:

Inputs
RF (F Connector for internal tuner): 1
HDMI with HDCP: 2
Analog Stereo Audio for HDMI Inputs: 1
Component YPbPr plus Stereo Audio: 2
Composite Video: 2
S-Video plus Stereo Audio: 1
Computer RGB plus Stereo Audio: 1
Service Port: 1

Outputs
Analog Audio out (RCA): 1
5.1 SPDIF Digital Optical Audio: 1
Headphone (Stereo Mini-Jack): 0

Dimensions
Carton: 35" W x 28" H x 14.2" D
Net: 31.4" W x 23.3" H x 10.4" D
Without Stand: 31.4" W x 22.1" H x 3.9" D
Certifications: CSA, CSA-US FCC Class B, IC, BETS-7

I would HIGHLY recommend the Vizio 32" VX32L HDTV to any one wanting to purchase a HD LCD TV.

Nokia 6500 Classic-A Complete Blend Of Multimedia Technology

2008-08-29T09:35:00.000-07:00

by:Austin David

Want a silver screen to watch movie on your palm! The Nokia 6500 Classic can offer fun imaging feature, allowing users to record, playback and stream video on the phone. Born with the best; the Nokia 6500 Classic Phone receives praises from the users because of its compact casing, 3G technology and a 2 inches QVGA LCD screen to provide sophistication while phoning, high speed broadband connection along with fast data transfer, multitasking capabilities and video streaming, and to provide excellent visual presentation respectively.

Order Nokia 6500 Classic from the retailing sites to get the excellent phoning, imaging, and web browsing at an affordable price. The Nokia 6500 Classic Phone encompassed with 2-mega pixel camera and music player provides users with the ultimate imaging and music experiences. The camera can steal the show by offering beautiful images and portraying videos on the screen. The music player can soothe the minds through its tuneful sound and melodious music. As far as messaging is considered; the Nokia 6500 Classic Phone has put much emphasis on text messaging, multimedia messaging and email to assess non-verbal communication. The clarity of communication is determined with wireless connectivity and networking. Order Nokia 6500 Classic online as it does not rely on cables t download games and applications, transmit data and files, send multimedia messages and email and browse internet on the move. In fact, the Nokia 6500 Classic Phone supports Bluetooth, USB, EDGE, Quad Band technology, HSCSD, WAP and XHTML to render wire free communication in the form of multimedia and mobile computing.

When multimedia communication is at its offing; the introduction of the Nokia 6500 Classic Phone has set a new trend of communication to develop computer-generated performance on the mobile phone. In short, the Nokia N6500 Classic is regarded as a sophisticated device designed with all the latest technology you could need

Electronic Graphic Organizers for Brainstorming

2008-08-29T09:33:00.000-07:00

by:Ajeet Khurana

The teachers of the world invariably stay away from technology when it comes to teaching their students. They had to stay extremely organized in order to produce easy to understand graphs, charts, and other forms of graphic learning material. If a graph got messed up during an exercise or lecture, they were out of luck and had to move on and start again on a fresh sheet. Now, that isn't the case anymore. New electronic graphic organizers are available which make life much easier for teachers and help students to learn far more effectively.

SmartDraw Electronic Graphic Organizer

SmartDraw has a new piece of software that offers full capability for teachers who have little idea of the computer. Instead of just going along with the old, bland templates of the past, teachers can now create graphic organizers with this software. They can take previous examples and make the necessary modifications in order to ensure that their students get the point.

This product is one of the most revolutionary ones on the market because of some of its teacher-friendly functions. They get to choose from more than one hundred of what SmartDraw refers to as "SmartTemplates", which are specially designed applications that can be changed and quickly saved by a teacher. In addition to that, the product is easily obtainable. With a quick download, you will have the software. After that, you will be on your way to creating top notch applications for teaching and presentations using this software.

MatchWare Open Mind 2

Also taking the electronic market by storm is MatchWare, who has introduced its new Open Mind 2 organizing product. This software is a professional looking mind mapping application that enables you to create your own professional looking presentations with a lot of ease. With this new software, ideas can be turned into great looking graphic presentations in the matter of a little while. That flexibility and quickness is important for those people that do not have too many spare minutes.

This product has drawn rave reviews from many of the customers who have had a chance to get their hands on it. It allows for quick use and it one of the easiest systems to follow. Because it is fully compatible with Microsoft Windows and it has full integration properties, there should be no problem getting it up and running. The only problem with this product is figuring out which of the many applications to use. From the mind mapping software to the time table making ability, there is always a new feature to try out.

Just like other electronic graphic organizers, MatchWare Open Mind 2 can be quickly downloaded on the Internet with little trouble. This means that you can be creating great looking documents not too long after you bring home the product.

Tinderbox

For those folks that want a highly functional piece of software that is both powerful and easy to use, Tinderbox is a great option. When compared to the other programs on the market, this one is extremely deep and has a lot of capability. Though it may not be as flashy as some of its competitors, this piece of software is a stolid worker if you want your job done. Regardless of what kind of graphic presentation that you need to put together, there is an application within Tinderbox that will help you create it.

Tinderbox prides itself on providing products that are easy to use and state of the art. The product comes with a great deal of assistance in case you happen to run into any snags along the way. Because of the depth and overall capability of the application, you might end up having some questions about various features. That is all right, as there is included a help section which should give you your answers.

Tinderbox also claims that its product is one of the fastest on the market. There are features included in this product that make it very easy to get work done quickly. You won't be waiting around when you see that some work must get done.

These three products are some of the top electronic organizers on the web today. Each one offers something that is unique and can help bring something special to any presentation. When you are looking to get across a point involving some data, how do you achieve that then through visual, good looking presentation material? With a lightning quick download of any of these products, you can be on the way to creating terrific presentations that will surprise even you. Regardless of whether you are teaching English to a bunch of 7th graders or presenting a business proposal to a set of new clients, you will find great use in these products.

LED Technology Surpasses Other Lighting Technology

2008-08-29T09:31:00.000-07:00

by:Ben Anton

LED, or light emitting diode, technology is something consumers are hearing more and more about from television advertisements, magazine ads and news reports. However, very few people understand why this light source is such a powerful alternative to traditional lighting. The advantages of LED light sources over other technologies are numerous but can be simplified into two main categories: 1.) energy efficiency & longevity and 2.) power & versatility.

Benefits: Energy-Efficiency & Longevity

- LED light bulbs generate only trace amounts of heat, resulting in nearly all of the electrical energy consumed being used toward creating the light itself. Incandescent, halogen or fluorescent lights can use up to 90% of their energy consumption producing heat-carrying infrared light photons which do not produce visible light.

- LED light bulbs produce more light per watt of energy.

- Standard LED light bulb are estimated to burn for 35,000 to 50,000 hours at full capacity before requiring replacement (some high-quality LEDs even boast 100,000 hours). Incandescent burn for 1,000 to 2,000 hours.

- LED technology is perfect for applications that are frequently turned off and on, like flashlights. Fluorescent bulbs burn out more quickly when they are frequently switched on and off.

- LED light bulbs are solid state components, which are difficult to break, unlike incandescent, fluorescent and halogen bulbs which have internal filaments that can easily break.

Benefits: Power & Versatility

- When compared watt-for-watt to an incandescent bulb, LED light bulbs produce more light per watt than any other light bulb.

- A single LED bulb can produce twice as much light (as measured in lumens) as a traditional bulb.

- LED light bulbs light up quickly, providing full brightness in micro-seconds.

- LED light bulb are much smaller than regular bulbs making them perfect for a variety of applications

- LED light bulbs do not use any mercury.

- LED technology is designed to focus the light better for a more intense, bright light.

- LED light bulbs maintain their color when dimmed, unlike incandescent bulbs which turn yellow.

- LED light bulbs can be built to emit color without using costly colored filters, which drive up the cost of traditional colored lights.

With these benefits, LED light bulbs can be used in a countless number of applications. Hunting, fishing and camping enthusiasts can be confident that with a LED flashlight in their gear, they will have adequate, powerful light that will last for days on one set of batteries and years on one light bulb. They will also be pleased to find this technology built into a number of form factors, all specifically designed for specific activities – headlamps for cave hikers, flexlights for fishermen, lanterns for campers and torches for hunters.

Home owners will be able to see power consumption reduction and lower electric bills within one month by transitioning light bulbs in the kitchen, bathroom or living room to LED replacement bulbs.

Perhaps one of the best reasons to switch to LED light sources is to lessen your footprint on the environment. By switching to LED light bulbs, you are not only saving money by using less energy, you are also helping the environment by preserving our resources. In an environment that needs the earth’s inhabitants to use less and save more, LED technology lights the way.

~Ben Anton, 2008

7 Tips For Scoring A Nintendo Wii

2008-08-29T09:29:00.000-07:00

The Nintendo Wii made its debut over a year ago. Despite that, the game console is still hard to find and most people will finding one a little tough. Because of this, you will need a bit of work and luck in finding and buying your own Nintendo Wii.

The Wii is the fifth home video game console made available by Nintendo. A unique feature of the console is its wireless controller called the Wii Remote. It can be used as a handheld pointing gadget that has the ability to distinguish motion and rotation in three dimensions. The Nintendo Wii bundle includes the Nunchuck unit, which features an accelerometer and a conventional analog stick with a couple of trigger buttons. The Nintendo Wii home video game console has become extremely popular that customers are finding that stores do not always have it in stock, and if they do, the stocks are immediately depleted. Here are some tips to help you secure a Wii.

1. Secure a Wii preorder first thing in the morning. A lot of merchants release their stocks of the home video game console in small batches. They usually begin their stock releases at 8am so if you are planning a Wii preorder, you have more chances of securing your game console at this early hour compared to any other time of the day.

2. Check with the stores for early morning releases. Go to the electronics section of the store and ask for the number. Call them first thing in the morning and check if Nintendo Wii stocks have arrived. When they do have the stocks, you can just walk in and pick up your game console before anybody else does. Some stores get them in 10-20 stocks, but require customers to wait in line. They typically do not have the Nintendo Wii in stock 15 minutes after they have opened. You can also check out stores that hand out vouchers an hour before their opening.

3. Make sure that you are well informed about the checkout procedures of the store you’re getting your stock from. If you plan to buy Nintendo Wii online, it’s best that you go over the store’s checkout process beforehand. This helps prevent you from running into certain situations with long procedures or like when the online store asks you for information you don’t really have to give out.

4. Go to merchant sites and fill up pre-registration forms. Several online merchants require a pre-registration and need you to set up an account before you can place your Nintendo Wii order. As this is a time-consuming task, it’s suggested that you perform this prior to making an order.

5. Use Microsoft’s Live Toolbar. If you think leaving your pertinent details on a merchant’s web site is not secure, you can use the Live Toolbar from Microsoft. This tool is particularly helpful to help you speed up the process of filling the necessary details. It has an auto-fill feature that keeps your name, address and credit/debit card details, which are kept in an encrypted file in your own computer.

6. Use a Nintendo Wii Finder. Through the game console finder, you will be able to track store inventory at the major merchants and retailers in real time. It will also let you know when the game consoles are in stock. Websites such as www.findawii.info automatically update with information on Nintendo Wiis in stock.

7. If all else fails, you always have eBay. You will definitely pay more for your Wii but it is the guaranteed way to score one. You can save some money buy bidding on auctions ending late at night or earlier in the mornings when less people are likely to be scouting ebay for a Wii as well.

iPod - The Best Selling Portable Music Player

2008-08-29T07:57:00.000-07:00

by: Ajoy Saah

An iPod has become the best selling portable music player. Designed and marketed by Apple Inc., its sale has crossed 140 million pieces. This brand enjoys the market share of more than 60% in portable media players category.

There are many portable media players available in the market. Many big corporations world wide have many such products. Then, what is the reason for such a huge popularity of a single product called ipod?

Ease of use has been cited as the chief reason. An end user finds it difficult to accept a product that is complicated to use. He becomes dissatisfied, distraught and ultimately abandons it. Apple accomplished this factor beautifully. Despite new technologies, an ipod is very easy to use. It gives ample satisfaction to an end user.

iTunes software is required for music downloads from iTunes Store. Both are owned by Apple. Present versions support mac and windows computers. You can download pop music, rock or any type of music. It can play all iTunes Store music and other limited external sources.

An iPod can play mp3, AAc, AIFF and Apple Lossless file format and other limited standard file formats. Music files from Napster and MSN can not be played due to digital rights management issues.

Classic, Nano and Touch are main model line ups. Classic is based on hard drive storage and offer capacities ranging from 20 giga bytes to 160 giga bytes. Nano offers storage ranging from 1 to 8 giga bytes. Latest classic and nano models can play video and image files also. Nano and Touch models are based on Flash memory cards.

It has won many awards as Most Innovative Audio Product, Fourth Best Computer Product and Engineering Excellence. An iPod has become most reputed audio product.

Calling Cards US To India: Spreading Smiles

2008-08-29T07:55:00.000-07:00

by: John Butcher

Calling from US to India is now fun and cheap. If you make frequent phone calls to India then get the calling cards US to India. It is a prepaid calling card. The prepaid calling cards are affordable and available according to your budget comes in different rates. You can get them at any corner stores, grocery shop, and rail terminus and bus stations.

In the market, numerous companies offer this international communication services. Hence, the calling rates vary. So, it is always wise to differentiate the rates before purchasing a card. To find a reasonable prepaid phone card take the help of internet and you will come across various offers. Moreover, while looking for a prepaid calling card try to avoid things that mention “connection fees”, “rates may change without prior notice” or any charges. So, seek for a card that has less terms and conditions. The prepaid calling card gives you the best opportunity to follow a rational budget. Unlike post paid bills the cost of these calling cards are not burdensome.

The process of activation of the card is easy. Just dial a toll free number and follow the said instructions and your account will be credited in a blink if inserted the personal identification number (PIN). For any assistance dial the customer care centre number. These types of phone cards have minutes already paid in advance. The prepaid sim cards also give the roaming facilities. The other benefits that calling cards US to India carry are: a starter air time credit, free incoming calls, reasonable outgoing rates in comparison to post paid charges, its slender size and easy to carry with and text messaging services.

Calling cards US to India has brought smiles on the face of both US and Indian citizens. Thus, it has paved the way to establish a business or get in touch with the dear ones at less cost.

Satellite TV Codes

2008-08-29T07:15:00.000-07:00

by:Marcus Rolland

Watching television anywhere and anytime is now very easy.Those who have computers such as desktop, laptop or even a pocket PC that has a PCTV device can get into to any television channel and watch the show that they have been anticipating for.Aside from the local channels,you can also watch other international shows from the National Geographic and Animal planet.More than that, you can also tune in to your favorite FM radio or Internet radio frequencies.This is provided that you are within an area where there is an Internet access to your ISP or within a Wifi zone.

Another chance for you to be able to watch clear television shows is through the satellite TV.Satellite TV operates when the satellite dish is able to receive signals or transmissions that bounce back to earth.The signal is relayed to the antenna that in turn decodes it. The final output or message is the picture that you see on your television screen.The package of the satellite TV comes with a satellite dish and an antenna. This is controlled with the use of the remote control that also comes with the package.

In order to get good signal for your television, you should set the right and proper satellite TV codes for it.The satellite TV codes are usually set up when the satellite TV is installed but there are times when these codes needed to be changed.When browsing through the Internet, you can find several sites that can offer free satellite TV codes.All you have to do is to download the application appropriate for your satellite TV and to key in the satellite codes.Once you have established the satellite TV codes,you can already start watching.

Here are some of the websites where you can get the latest satellite TV codes that are always in binary format. One is the dss-keys.This site updates their TV codes from time to time.Another site is the satellitekeys,where they even allow you to download an application where you are taught on how to properly key-in your TV codes.One more site that you can check out when looking for satellite codes is the dsstestersite.This site is a subsidiary of the original site. You can send questions and inquires to this site if the original site is down.You also have the option of checking satjunkies.This is another site that might be helpful for you since it has a forum where you can ask questions regarding satellite TV codes. Joining the forum is easy and free. You just create an account to be able to log in.

Again,there are more sites in the Internet that you can search for regarding the satellite TV codes.There are those that come free while there are those that you can avail in minimal price.There are also several sites that accept online discount coupons when purchasing for the satellite codes.Just make sure that you avail from valid suppliers to continue your access to the shows that you are waiting for.

Lens cleaning for laser pointers - tips and instructions

2008-08-29T07:07:00.000-07:00

by:Frank Smith

One of the most common problems you can have with laser pointers and one of the easiest to fix is dirty lens. You can tell the lens is dirty when the beam point is spotted or out of shape instead of the normal small tight circle.

There are many ways to clean the lens of a laser pointer such as q tips, microfibre, cotton buds and alcohol solution. Some of these may work, others will not but they all run the risk of damaging the lens. There are only two methods of cleaning lens that work well AND will not damage the lens. Those two methods are using compressed air and using professional lens cleaning tools such as a lenspen.

Compressed air and lenspens

The most common sources of compressed air are cans of compressed air and hand pumps or squeeze bulbs. The main criteria for compressed air sources is the air must be clean and dry. This is one reason why blowing on the lens is not recommended.

The best professional lens cleaning tools are lens pens from the company lenspens http://www.lenspen.com These lens cleaning tools are safe and suitable because they are designed to clean fragile precision optics such as camera lens.

Instructions

Safety is always an issue with high powered laser pointers so the first thing you do before cleaning the lens is remove the batteries from the laser. After removing the batteries, leave the battery end cap off as an extra precaution.

Compressed air will be able to clean 90% of lens so try using compressed air first. Gently unscrew the lens cap and with the nozzle held two to three centimeters away from the laser, direct a flow of air onto the lens for several seconds.

Install the batteries in the laser and test the beam. It should now be clean. If it is not, remove the batteries again and use the lenspen.

First gently use the brush of the lenspen to brush dirt and debris off the lens then use the pad on the other end of the lenspen on the laser pointer lens for several seconds to clean and polish the lens.

By the end of this process, then lens will have been thoroughly cleaned. If there is still a problem with the beam point or beam, it may be due to damaged lens.

Article is courtesy of Dragonlasers - No 1 lasers, laser pointer and green laser online store

FREE Internet TV Channels On Your PC The Easy Way

2008-08-29T07:03:00.000-07:00

by:Jane Seaville

With the power of the Internet, you can now access the contents of the World Wide Web, which nowadays are like boundless stream of data and information. If you want to start a business and you need help, you don’t need to go anywhere for help. You’ll just have to seat down and with a little browsing in the Internet, you can find a detailed guide that would help you. Even going to school can be done online, mp3’s and almost all types of files are already downloadable in the Internet.

What else you could do? Well, you guessed it. You can now watch TV channels online. Some upgrade their pc’s to be able to watch TV on their pc and with an LCD monitor, you can really watch TV in high-definition color and do your work at the same time but if you have a good internet connection, why waste a lot of money on upgrade while you can watch the shows online?

What you need if you want to watch TV online:

First and the most important thing to consider is that you must a have a fast Internet connection. There are no real specifications on the exact speed for the buffering will also be based on the provider but you must have at least 1mb connection to have a considerable buffer speed.

Second is that you must know how to look for Internet TV channels. There are generally three types that you can find in the Internet. There are sites that will offer you to watch TV channels for free. It is good to have the word “free” but most of these sites are so slow that your fast Internet connection will look like dial-up. Some even let you sign-up something before you can start watching and be careful if it lets you download some files. This may contain viruses that can harm your pc. The second type is the site that let you watch TV shows with a price. It is a one-time registration fee and you could watch unlimited TV shows with an acceptable speed. But if you’re looking to high speed buffering. You can opt to choose a site that gives a fee for every channel you watch. Well, the option is yours to make.

Lastly, you must have all the necessary codecs and players installed so that your pc can play the shows correctly. Don’t worry, there are a lot of free downloadable players and codecs and if you have a missing codec it would automatically ask you if you want to download one and just click yes.

Most require a specific player to be installed in your system before you can start watching. Mostly it will require you to have windows media player and real player installed. Windows media player is already included in standard windows installation. For real player, there are free versions available in the internet for download.

Here are some of the channels you can watch online:

1 ABC Sports News
2 Hit Channel
3 Ireland Live
4 NASA TV at nasa.gov
5 Popp Tivi
6 Raisport
7 RTLZ
8 Video Music Network
9 Viva WOM
10 VPRO
11 VPRO Theme Channel
12 MTV Maleisia
13 Nation 217
14 Revelation TV
15 MTV UK
16 3 BTV
17 E-Music Television
18 Classic FM TV
19 RED TV
20 Hit Channel
21 Western Bonanza TV
22 GnF Movie Channel
23 Nickelodeon
24 Reelgood TV
25 Western Bonanza TV
26 NBC Los Angeles
27 MMC TV
28 MCM Top France
29 Islam Channel
30 Beat.one
31 Pulse 24

Biometric Time Clocks

2008-08-29T07:00:00.000-07:00

by:Elaine Ester

In the fast-paced business environment where competition is stiff, companies need to protect themselves from espionage and piracy. Security begins with limiting access to company grounds and offices. Even employees can be granted only limited access to highly confidential documents and restricted areas. The latest models of biometric time clocks feature that capability, aside from just keeping time.

The biometric time timer is the electronic style of a time card clouting routine to screen attendance. It has also intensely enhanced on the authenticity of time account by with soul body part line as identification lettering for workers, making it impossible for workers to cheat as they can with time cards or swiping routines.

Models of biometric time timer’s scale from retina, palm, and feel scanners. The technology factory by meeting the aura scanned, for example the feel print, with the numbers stored in its recall. If the two auras meet, it allows and account the period of admission and exit. Fingerprints and retinas are impossible to hearth. A worker cannot clout in for another or use another's access rights.

As the expedient is also programmable Science Articles, it can keep path of attendance very well for companies that attempt compliant time schedules. It can be made to reckon overtime and festival hours worked per worker. This is definitely good rumor for those in the payroll entity. They wouldn't have to expend hours computing compensation every time payday nears. What's more important is that it eliminates soul blunder it lessens the odds of having worker complaint news or tiresome readjusting of wage and place computations. The expedient keeps its own account that can be downloaded frankly into a payroll routine. Attendance news can clearly be written. Monitoring of worker transfer inside the offices can be facilitated. This makes biometric time timers the right expedient for nowadays business centers.

Epitaxy on Silicon-On-Insulator Technology

2008-08-29T06:58:00.000-07:00

by:Jimmy Lee

Introduction:

As at current, we see that CMOS technology is the driving technology of the microelectronics industry, and the conventional way of fabricating integrated circuits on bulk silicon substrates has illustrated problems such as unwanted parasitic effects, latchup, and the difficulty of making shallow junctions. In the recent years, the advent of Silicon-on-Insulator has proven superior in many aspects to their bulk counterparts, and the benefits include the absence of latch-up, the reduced parasitic source and drain capacitances, the ease of making shallow junctions, radiation hardness, ability to operate at high temperature, improved transconductance and sharper subthreshold slope. There are several approaches available to create SOI wafers, and we discuss two particular techniques over here. First, we seek to illustrate a heteroepitaxy technique through the Ultra-Thin Silicon (UTSi) process where high quality Silicon-on-Sapphire (SOS) material is formed. Next, we look at a homo epitaxy technique called Epitaxial Lateral Overgrowth (ELO) technique which seeks to grow a homogenous crystal laterally on an insulator.

Ultra-Thin Silicon (UTSi) Process

Silicon-on-Sapphire (SOS) material was first introduced in 1964. SOS was recognized for its high speed and low power potential. The usage of Czochralski growth of sapphire crystals and the subsequent deposition of a silicon film in an epitaxial reactor had proved inefficient as there was high defect density due to lattice mismatch with defect densities near the Si-Sapphire interface reaching up to planar faults /cm and line defects/cm. This resulted in low resistivity, mobility, and lifetime near the interface. The silicon film deposited is also under compressive stress at room temperature due to different thermal expansion coefficients which may possibly result in relaxation in the film through crystallographic defects such as microtwins, stacking faults, and dislocations. Such consequences are undesired.[1]

Hence, these reasons advocate the need for better heteroepitaxy technique, and in which the UTSi process is one such potential candidate. The steps involved in a UTSi process are as follows: See Figure 1.

Step 1: Grow a relatively thick film of silicon on sapphire. Silane (SiH4) is commonly used as the source of silicon for SOS growth. Its pyrolysis reaction in a carrier hydrogen gas, SiH4 --> Si + 2H2, results in the deposition of a silicon layer over the sapphire substrate. The deposition temperature is usually kept below 1050 deg C in order to prevent the autodeposition of aluminum from the sapphire substrate to the silicon layer. The desired silicon orientation is , which has been achieved on various sapphire orientations, i.e., , , .

Step 2: Implantation of Si into the silicon film is carried out to amorphize the bottom 2/3 of the silicon film, with the exception of a thin superficial layer, where the original defect density is the lowest.

Step 3: A low temperature thermal annealing step is then used to induce solid-phase regrowth of the amorphized silicon, using the top silicon layer as a seed.

Step 4: The silicon film is then thinned to the desired thickness by thermal oxidation, and the subsequent HF strip of the SiO. What remains is the final product of Silicon-on-Sapphire (SOS).

It has been demonstrated that UTSi process is capable of delivering relatively defect-free and stress free SOS material in which devices with a high effective mobility can be made.

One application of the UTSi process is seen in UTSi CMOS transistors. As seen from Figure 2, the fabrication process is much simpler since the deep implants and guard regions are unnecessary thanks to the insulating sapphire substrate, and undesired effects such as leakage currents, latchup, and the RF parasitics are eliminated since the devices now sit on an insulating layer. The performance of the CMOS process is enhanced by as much as two generations of process geometry reduction. The advantages of forming CMOS transistors in the ultra thin silicon layer over insulating sapphire include the following:

* Elimination of substrate capacitance, which allows higher speed at lower power and avoids voltage dependent capacitance distortions

* Fully depleted operation, improving linearity, speed, and low voltage performance

* Excellent isolation which allows integration of multiple RF functions without crosstalk

UTSi circuits are produced that compete in the rapidly expanding wireless and fiber optic markets at higher frequencies and data rates with lower power consumption than standard bulk CMOS, SiGe and GaAs circuits, while still using standard CMOS equipment and processing.

Epitaxial Lateral Overgrowth (ELO) Technique

This technique allows the homoepitaxial growth of silicon on silicon, with the focus placed on growing the crystal laterally on the insulator. In ELO, we can perform this in an atmospheric or in a reduced-pressure epitaxial reactor. The technique consists of the epitaxial growth of silicon from seeding windows over SiO islands or devices capped with an insulator.

The steps involved in a ELO technique are as follows: See Figure 3.

Step 1: An oxide layer is grown on the (100) silicon wafer. Next, patterning is carried out on the oxide to demarcate the windows. The edges of the windows are oriented along the direction.

Step 2: Cleaning of the wafer is carried out

Step 3: Wafer is loaded into an epitaxial reactor and submitted to a high-temperature hydrogen bake to remove the native oxide from the seeding windows.

Step 4: Epitaxial growth is performed next, using e.g: SiHCl +H+ HCL gas mixture.

Step 5: Apply an in-situ HCl etch step to remove any crystallites that may be formed on the oxide due to nucleation of small silicon crystals with random orientation during the epitaxial growth.

Step 6: Once the small nuclei are removed, a new epitaxial growth step is performed, followed by an etch step, and this repeats until the oxide is covered by epitaxial silicon.

Some points we should note is that the epitaxial growth proceeds from the seeding windows both vertically and laterally, and the silicon crystal is limited by the and facets. When two growth fronts, seeded from opposite sides of the oxide, join together, a continuous silicon-on-insulator film is formed, which contains a low-angle subgrain boundary where the two growth fronts meet. A groove is observed over the centre of the SOI area. When more growth is done, this groove disappears.

As much as this is a simple technique to have homoepitaxial growth, a major disadvantage is the nearly 1:1 lateral-to-vertical growth ratio. On the other hand, the thick ELO film allows the design engineer to obtain SOI films of different thickness easily simply by polishing the wafers to required depths as needed. Also, the low defect density and low thermal budget needed to implement a ELO-SOI is considered superior to other technologies such as SIMOX (Separation by Implanted Oxygen) or other SOI processes for submicron devices.

Applications for this technique have been seen in three-dimensional and double-gate devices.

Variations in ELO technique has been witnessed in “tunnel epitaxy”, “confined lateral selective epitaxy” (CLSEG) or “pattern-constrained epitaxy” (PACE) whereby a “tunnel” of SiO is created, forcing the epitaxial silicon to propagate laterally instead of vertically. In effect, a 7:1 lateral-to-vertical growth ratio has been obtained, which is more efficient than the original approach

How to Shop for the Best GPS PDA Accessories

2008-08-29T06:56:00.001-07:00

by:R James Cook

Features and Price Together Are the Best Determining Factors When Shopping for GPS PDA Accessories

There have been PDA accessories ever since the first PDA was built, but GPS PDA accessories are a relatively new class of product. They have become very popular in a short time, and because of this there is a wide variety available, which which can make it hard to decide just which GPS PDA accessory you want to buy.

Once you have decided to buy one, there are a few things you should keep in mind, and a few things you should look into before purchasing a GPS PDA accessory. After all, many of the GPS products on the market can be very pricey, and you don't want to rush out and buy one only to discover that it doesn't fit your needs, or that another product does the same thing cheaper.

What Features Do You Really Need?

To get the most value for your money when shopping for GPS PDA accessories, first make a list of the features you absolutely cannot live without. Once you have done this, make a second list of the features that you would like to have, but don't require. These can be things like a talking GPS, driving directions and map locations, and whether or not you want other things incorporated in the GPS PDA accessory such as a calendar or an MP3 player.

Most likely you will be able to find plenty of GPS PDA accessories which offer everything on your must-have list. This is where your other list comes in; use it to narrow down your options be eliminating the products that don't offer the extra features you are looking for. By doing this, you can determine which features are worth the extra price to you, which will allow you to come up with a short list of the products that are the best fit for your needs.

Once You Have Found the Perfect Product

The final consideration to make sure you get the best in GPS PDA accessories is, of course, the price. Just because you have managed to find a great GPS PDA accessory which not only has all the features you need, but many of the features you want, does not mean that you can get the best in the business just because you pay an arm and a leg for it.

You will of course want to check the pricing in your local stores on the GPS PDA accessories you want, but don't stop your search there. There are many fantastic deals on the internet, both on products you can find in the local brick and mortar stores, and on products that you may only be able to find online. One of the great things about shopping on websites like Amazon.com and eBay is that you can not only score good deals, but you can also usually find a much wider selection than is available in your local stores. The free shipping offered by many web store just makes online shopping even more worth it.

An Overview of After Market PDA Bluetooth Accessories

2008-08-29T06:55:00.000-07:00

by:R James Cook

Bluetooth Makes it Easy for All Your Devices and Accessories to Work Together

Bluetooth is one of the latest marketing buzzwords for PDAs and cellular phones, along with PCs and especially laptops. It is a wireless technology designed to let products and accessories built by different manufacturers work together, without requiring special access codes or driver installation. Theoretically, any Bluetooth accessory should work with any Bluetooth-enabled device, and multiple accessories working with the same device shouldn't interfere with each other.

For example, if you pick up a Bluetooth headset for your current PDA, and then in a year's time replace it with a new PDA, the headset should work with the new PDA without any difficulties. With some older PDA Bluetooth accessories and devices, this is not always the case, but generally the more recent the design of the accessory or device, the more likely it is to work with other Bluetooth products.

PDAs, Cellular Phones, and Computers

New PDAs today resemble cellular phones as much as classic PDAs like the Palm Pilot. Most of these devices are Bluetooth-enabled, and even have the capability to link with other Bluetooth-enabled PDAs and cellular phones to exchange data. For models that are not Bluetooth-enabled, there are frequently PDA Bluetooth accessories available that will add Bluetooth capabilities to the unit. Bluetooth adapters are also available for PCs and laptops, usually plugging into a USB port, allowing you to easily exchange data between your computer and your PDA.

Just about any type of data can be transferred over a Bluetooth link, from electronic business cards and pictures to word processing documents and PowerPoint presentations. For transferring data from a PDA to a computer, special software is often needed and included with the Bluetooth adapter. However, PDAs running Windows Mobile can communicate natively with computers running Windows XP Service Pack 2 or Windows Vista.

Having a Bluetooth PDA and a Bluetooth adapter for your computer can eliminate the need for a docking station or sync cable, removing one more piece of clutter from your desktop. You can even set the two devices up so they automatically synchronize their data when they're in range of each other.

Other PDA Bluetooth Accessories

Headphones and headsets are the most common PDA Bluetooth accessories right now. Wireless headphones are great if your PDA has music stored on it, because you don't have an unsightly wire running from your head to your pocket or purse. Headsets and earpieces allow hands-free operation of your cell phone or smart phone, which is not only convenient but is also quickly becoming a legal requirement world-wide for using your phone in your car.

Printer manufacturers are quickly adding Bluetooth capabilities to their products, turning them into convenient PDA Bluetooth accessories. Previously, to print something stored on your PDA, you had to use the docking station or sync cable to download the information to your computer, then print it from the computer. With a Bluetooth-enabled printer, you can send your data directly to the printer without the intervening steps. If your computer is also Bluetooth-enabled, it can send data to the printer as well, eliminating the need to hook up the printer to the computer or network.

There are many other PDA Bluetooth accessories available for your PDA, and with Bluetooth it doesn't matter who manufactures either the device or the accessory. A Motorola headset will work with an iPhone, and a Palm Tungsten can print spreadsheets on a HP LaserJet. Manufacturers are constantly coming up with new PDA Bluetooth accessories to meet the demands of consumers. Bluetooth technology is making it easier for everyone to communicate.

Theft Prevention Accessories for PDAs

2008-08-29T02:46:00.000-07:00

by:R James Cook

Protect Your Investment, Your Data, and Your Privacy With These Theft Prevention Accessories for PDAs

Losing a PDA through theft is one of the biggest challenges owners of personal data devices face. As the prices and capabilities of these units increases, so does the market for stolen PDAs, year after year. Of course, locking the unit up in a drawer and never taking it out is about the only certain way of making sure a PDA is never stolen, but that limits the usefulness. Attaching a heavy chain and a wheel hub may help, but it won't fit in your pocket. Instead of taking these sorts of extreme measures, consider one or more theft prevention accessories for PDAs.

Permanent Markings Scare Away Thieves

If you're a little handy and have a steady hand, you can try the tried-and-true method of etching. Grab your rotary tool and lightly carve an identifier into the back of the case, like a phone number or email address. Doing this will probably void your warranty. Don't try this unless you have a steady hand and neat handwriting.

A less extreme option is a security sticker. A sticker may not seem like much of a deterrent, but what if peeling off that sticker announced that the PDA is stolen? That's the idea behind security sticker theft prevention accessories for PDA units. The self-adhesive sticker is attached to the back of the unit, and gives an 800 number to call and report the PDA. The sticker also advises them that by reporting the unit, they can avoid prosecution.

However, if the sticker is peeled off, the phrase "STOLEN PROPERTY" and the 800 number are left behind in large, very obvious lettering of indelible ink. This type of theft prevention accessories for PDA units stops theft from those who want to snatch the item while you're not looking, and turn around and sell it on the street. Few people, regardless of how dishonest they are, will buy an item that announces it has been stolen.

Tracking the PDA With GPS

The GPS functionality built into many modern PDAs is usually used for convenience for the unit's owner, but with tracking security software, it can also be a way to find a stolen PDA. This form of theft prevention accessories for PDA units consists of software that is installed on the unit and a subscription service. The software installed will be linked to the unit's built-in password protection, and will automatically broadcast an emergency signal after an incorrect password has been entered. The subscription service will then pick up the signal and start tracking the PDA, informing the authorities where to find it.

Common Sense

Probably the best theft prevention accessories for PDA units, however, is our own common sense. Don't leave it lying unattended on a table, even for a moment. If you put it down and look away, someone else will probably pick it up. Don't leave it in plain sight inside a vehicle, even a locked vehicle. Make sure you use the built-in security functions of the unit itself. A password can, at the very least, protect the information on a unit from prying eyes if it is stolen. Think about that if you keep your kids' pictures and contact information for your kids' school on the unit.

The Coming Age Of HDTV

2008-08-29T01:43:00.000-07:00

by:Lloyd Howard

HDTV - high-definition television: it is something that has been discussed for some time now, however not everyone has a strong sense of what it is and why he or she would want to have it.

Because all television stations will be required to broadcast a digital signal after February 17, 2009, many viewers are beginning to ask a lot more questions about how the new digital age of television will affect their personal viewing experience. They want to know whether or not their television set will be compatible, whether or not they will have to replace it, and what steps they will have to take in order to keep watching their favorite shows.

How To Identify If Your Television Is An Analog TV

Analog television has been with us since the inception of television broadcasting. Analog is the old way of processing a television signal.

Television technology took a big leap in the 1960's with the transition from television tubes to circuit boards, but that conversion failed to bring with it any major strides in the quality of the television picture.

If your current television does not have a logo on its front that indicates DTV (Digital TV), EDTV (Enhanced Definition TV), or HDTV, then your television set is an analog TV.

Understanding The Transition From An Analog Signal To The New Digital Signal

Digital image processing is a technology that began in earnest during the 1970's, when Japanese technology companies began to explore the concepts of HDTV. The Japanese TV manufacturers were exploring ways to improve the picture quality of the television image, as a way to find more customers for their television products.

While Americans were busy playing with building the computer industry, the Japanese were hard at work trying to build a better television set. The first HDTV systems developed by the Japanese still relied on the old analog system of sending a broadcast signal to their televisions, but they were still able to produce a better television viewing experience.

When initially introduced to the U.S. Government, the new HDTV system produced a myriad of concerns, which included the issue of an analog HDTV-system needing more bandwidth than what was currently allotted to the television broadcasters.

In 1993, a consortium of American researchers and manufacturers (known as The Grand Alliance) joined forces to find a way to bring HDTV-quality to the American public, while keeping the bandwidth requirements of broadcasters within the existing limits.

Researchers soon understood that they would need to push at least part of the television signal in a digital format to make sure that HDTV could be transmitted within the limits currently allotted to the television broadcasters. By the time they had finished their work, the Grand Alliance had created a system that was 100% Digital.

In 1995, after considerable opposition from the television broadcast industry, the U.S. Federal Communications Commission officially set the standard for completely digital HDTV broadcasting system. This put into motion the events that are just now coming to fruition, with the rollout of the new Digital Television broadcasting system.

Although most television stations have been broadcasting a Digital Television Signal now for a few years, analog television owners have been none the wiser. But that will all change on February 17, 2009.

Will My Analog Television Stop Working In 2009?

The simple answer is "yes", but that does not mean that you will have to buy a new television in order to get the new digital broadcasts. While you may not need to replace your television set, you may have to make changes in how you get your television signal.

There are in fact three ways that the average consumer can continue to get a television signal using their old television set:

1. Subscribe to a cable television service (and use their digital television converter);

2. Subscribe to a satellite television service (and use their digital television converter); or

3. Buy a DTV converter (Digital TV Converter) to receive signals from your analog antenna and to convert that signal back to analog, so that you can continue to use your analog television. (If you receive your television signal over-the-air, the Federal Government has implemented a Coupon Program to help consumers offset the cost of the DTV converter boxes: http://www.ntia.doc.gov/dtvcoupon/index.html )

Understanding The Three Facets Of The New Digital Technology

1. Lines Of Resolution

The newer digital technology is all about Lines Of Resolution. With more lines of resolution, the viewer will receive more image information, therefore bringing the viewer much more picture clarity and detail.

When the Japanese rolled out HDTV on the Japanese mainland, the lines of resolution numbered 1080. To put this into perspective, the standard analog TV signal exhibits 330 lines of resolution. This makes it more than clear that the original analog HDTV format really was a real issue for television broadcasters in the United States. To produce a resolution of 1080 lines on a system designed for 330 lines would have literally required three times the bandwidth of the current analog system.

Here are the standard television resolutions:

* Analog Television - 330 Lines of Resolution

* VCR's - 240 Lines of Resolution

* DVD's - 480 Lines of Resolution

* EDTV - 720 Lines of Resolution

* HDTV - 1080 Lines of Resolution

There is a caveat to this chart though. The minimum requirement of the FCC is that broadcasters must produce a minimum of 720 Lines of Resolution. As a result, some broadcasters like ABC chose the 720-resolution, and yet they can still legally call their programming standard, HDTV.

Other broadcasters like PBS opted for the higher 1080 format. Good for them.

In 1998, when the first HDTV's became available to the buying public, the Headline News newscasters were joking that with the rollout of HDTV, we the audience would be able to see every blackhead and blemish on their faces. Of course, they were probably correct in that assumption. The detail of the HDTV-signal is absolutely amazing.

2. Aspect Ratio

Another factor connected to the new HDTV-format is the Aspect Ratio.

In a standard analog television, the Aspect Ratio is a 4-by-3, which nearly looks square. The 4-by-3 ratio means that it can be measured 4-parts wide to 3-parts high.

With the new HDTV format, the Aspect Ratio has been changed to the same format seen in the movie theatre - a 16-by-9 Aspect Ratio, or 16-parts wide to 9-parts high.

3. Sound Quality

The third factor connected to the new HDTV-format is Sound Quality. In fact, most HDTV programming will carry with it Dolby Digital 5.1 surround sound, as frequently heard on DVD's. So long as you have a surround sound unit attached to your television set, the surround sound will enable to the television viewer to be immersed in the sound, so much so as it often feels as if you are in the middle of the action happening on your television set.

In Conclusion...

While it is true that you do not need to upgrade your television from the analog format to the new digital format, you might seriously consider doing so anyway.

Now that we are quickly approaching the end of the analog-television era, the cost of HDTV television sets has fallen considerably. Whereas five years ago, the average HDTV cost in the range of $3-4,000, the cost of most HDTV's has fallen to under $1200 today. After February 17, 2009, the cost of HDTV should drop again, making it much more affordable to the general public.

Although it will be possible to convert the digital television signal to analog, you will lose the extra picture detail on the conversion. So, if you stick with your analog television, you will be restricting yourself to the quality of picture you are currently receiving, even after the change in television broadcasting formats is complete.

Although color-technology was first introduced to audiences with the release of The Wizard Of Oz in 1939, color television did not become mainstream until the late-1960's. And although the technology of color was mainstream, black-and-white televisions were still being manufactured and sold well into the 1980's.

Fortunately, this transition will be a bit quicker than the conversion from black-and-white to color. Under the FCC rules for the transition to digital television, television manufacturers were required to include a digital tuner in all television sets manufactured after March 1, 2006.

This conversion is much like the transition from AM to FM as the standard listening medium in the radio industry. Radio listeners could not listen to FM stations until which time they had upgraded their radio from AM to the AM/FM format. The same thing will happen here as well. If you want to receive the beautiful, high-quality HDTV images, you will need to upgrade to a television set capable of displaying the HDTV images.

If you have any lingering doubts about the better HDTV standard, all you need to do is to visit your local television store and see for yourself just how awesome of a picture HDTV actually produces. Just as Dolby Digital Surround Sound enables the listener to feel as if they are in the middle of the action on the television, HDTV permits the viewer to feel as if they are standing in the same room as the actors, on the sidelines at the football game, or on the same beach as the models - it really is that good of a picture.