Software Defined Radio

This article presents a new approach called Software Defined Radio (SDR) for implementing communication systems. Various issues and challenges faced by the present communication systems design and how the Software defined Radio approach addresses these issues and how it benefits the communication industry and users are discussed in detail. The Technologies, Market, Industry support factors that are driving the SDR approach are narrated. The architecture and the components that make up the SDR are explained and illustrated for the purpose of understanding the technology. And also, the hardware and software components required to build a practical SDR are investigated. The recent availability of multi processors, FPGA, software reference models, and developmental tools that are accelerating the penetration of SDR into the cellular market are explained and reviewed. Currently available SDR reference systems and their modular and extensible architecture are also presented for sake of designers. The market trends and predictions for the SDR are discussed. The paper concludes by defining the future SDR capabilities and identifying the opportunities that exist for IP, Design services business

Sweep-Away Cabinet Vac by Galaxie

The Sweep-Away is a self-contained vacuum cleaner that functions both as an automatic dustpan and powerful central vacuum. It stows away neatly inside a standard kitchen or bathroom cabinet and plugs into a standard wall outlet. The home I installed this in was built in the 1960's and is 1600 square feet; all flooring in the home is hardwood or tile. The house was built prior to central vacuum systems so this cabinet vacuum is an affordable and effective alternative.

The First Watt B1 Buffer Preamp

So here we are in the New Millennium, and thanks to Tom Holman and THX we've got lots of gain in our electronics. More gain than some of us need or want. At least 10 db more. Think of it this way: If you are running your volume control down around 9 o'clock, you are actually throwing away signal level so that a subsequent gain stage can make it back up. Routinely DIYers opt to make themselves a "passive preamp" - just an input selector and a volume control. What could be better? Hardly any noise or distortion added by these simple passive parts. No feedback, no worrying about what type of capacitors - just musical perfection. And yet there are guys out there who don't care for the result. "It sucks the life out of the music", is a commonly heard refrain (really - I'm being serious here!). Maybe they are reacting psychologically to the need to turn the volume control up compared to an active preamp. I suppose if I had to floor the accelerator to drive 55 mph, maybe I'd think the life was being sucked out of my driving. Then again, maybe I like 55. Nice and safe, good gas mileage…

The Freedom of Wireless USB Technology

With the overwhelming success of USB technology as the preferred interface, comes the challenge of organizing all of the cabling from desktop peripherals. Users with multiple USB peripherals find the clutter of cables unsightly and inconvenient to their workspace. With many different USB connections for mobile devices, such as cellphones, cameras, MP3 players and PDAs, it becomes increasingly difficult to use them on the go. To overcome these challenges a new method for connecting peripherals has come to fruition. A method, which offers the same benefits of a physical USB connection without the need for unsightly cables, a technology known as certified wireless USB. Using an ultra-wideband radio frequency ranging from 3.1 - 10.6 GHz, 127 devices can connect to a single computer up to 10 meters away without a hub. Connections made less than 3 meters away from the host can benefit from speeds typically USB 2.0, while connections from 3 to 10 meters will operate at 110 Mbps. Devices that support dual role or direct connections with each other can also operate with wireless USB technology.

The Rebirth of 3-D - Part I: 3-D Is Born

There has probably been no cinematic special effect that has the longevity that the process of three-dimensional filmmaking has. From the B-movies of the 1950's right up to the state of the art big-budget blockbusters being presented in 3-D on cinema screens today, the effect of 3-D has held a tremendous grip on moviegoers since its very inception and the allure of this tantalizing effect has on the eyes and the mind have kept moviegoers enraptured and hungry for more. In order to fully understand how movies in three-dimension became popular in the first place we must go back to America circa the 1950's. With the advent of television after the Second World War, many moviegoers opted to stay home and watch their television sets instead of going out to the cinema. Filmmakers needed a gimmick… something that would make the movie going experience unique and the gimmick would have to be something that could not be replicated on television sets. Thus, the concept of three-dimensional entertainment was born. When the 3-D format was first introduced on the American cinematic scene, the format could only be replicated in movie theaters and in order to view the film in the three-dimensional format, a movie goer would need a special pair of glasses and keep the glasses on while the movie was shown.

TV - Q&A

What is the difference between 1080p and 1080i displays? The difference is how the source conveys the information to the display. Interlaced: 1080i sources get transferred on the screen sequentially. The odd-numbered lines of resolution appear on your screen first, followed by the even-numbered lines all within 1/30 of a second. Progressive: 1080p sources get transferred with all lines of resolution simultaneously, which makes for a smoother, cleaner image, especially with sports and other motion-intensive content. The right technology for you is dependant on the content you watch. The majority of HD content via satellite and cable will be available in 720p & 1080i. Your Blu-ray or HD DVDs will be available in 1080p with the appropriate player.

Wall Of Sound

We at McIntosh Labs were pretty impressed with ourselves when we realized the McIntosh 2K reference system weighed in at close to one full ton. It never even occurred to us to imagine what kind of McIntosh system might weigh 75 tons. As it turns out, our imagination was not required. Nearly 32 years earlier, Owsley 'Bear' Stanley, Dan Healy and Mark Raizene of the Grateful Dead sound crew and Ron Wickersham and Rick Turner of Alembic Sound dared to dream of such a system.

What the heck is a Smart Grid?

Nowadays we have several issues to face that are causing concern to humanity in general and the western world specifically. I don't think I need to repeat them here but basically they are environmental as well as geopolitical in nature. Hence, the old coal or oil burning power plant needs to be phased out and we must become much more efficient at generating and delivering electricity to end users or the costs become extraordinary over time.

Atlona Technologies soon to release new 11 Input Video Scaler w/ dual HDMI Output, the AT -LINE -PRO3

Atlona Technologies, a manufacturer of AV technology, is soon to release their new 11 Input Video Scaler/ Switcher with dual HDMI Output

Screen Research Intros GrayPix Ultra -contrast Screen Fabric

The newest SolidPix screen material offers dealers a high-performance screen solution designed specifically for media rooms with high levels of ambient light.

2009 Creative Storage Conference Announces Sessions on Content Distribution and Post Production Storage

Creative Storage Conference April 19, 2009 in Las Vegas has sessions on digital storage and content distribution and post production. For more information go to www.creativestorage.org.

Timelapse Garden Video Camera

The Brinno timelapse garden video camera comes attached to a stake, making it easy to mount anywhere in your garden, and the lens can focus as close as 20-inches away from your subject, or it can capture a 54-inch wide field of view to get everything in frame. It snaps a photo at one of six preset time intervals, anywhere from every 5 seconds to every 24 hours, and the stills are compiled into a single 1280◊1024 AVI file for watching on your computer. The camera's housing is weather-resistant, which means you can set it up and forget about it, and it has a built-in light sensor that turns the camera off at night to extend the battery life. The 2GB USB flash drive it uses can store around 18,000 photos, and on a single set of 4 x AA batteries the camera will run for about 4 months when shooting once every hour. Available here for $159.95.

2.5 Million U.S. and Canadian Households ready to buy an Internet -connected TV

Personalized and Web-based content driving consumer demand

McIntosh Limited Edition 60th Anniversary Classic System Features Updated Reissues Of Historic Audio Components

-- Legendary Luxury System Reissue Includes Two MC75 Monoblock Amps in Combination with a C22 Preamp; Only 120 Sets Available in North America --

Meridian Names Brad Paulsen National Sales Manager

Meridian is pleased to announce the appointment of Brad Paulsen as the National Sales Manager for Meridian effective immediately. Paulsen was formerly the National Sales Manager for Sooloos, which was recently acquired by Meridian.

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Automation & Control - Featured Product

Light sockets; Not just for lights anymore

Light sockets; Not just for lights anymore

Smart Bulbs are out there and they can do far more then just provide light. Speakers, projectors, wi-fi extenders and more. The standard light socket that is wired up and ready to go in nearly every home in North America is now providing an easy and affordable option for home owners and renters alike to enter into the world of the "Smart Home". Here is a look at some of the Smart Bulbs and Smart Lighting options out there, and this list is just the beginning. In this ongoing article we hope to continue to add to and grow this list, so stay tuned!