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Special Section on the Digital TV Transition


BTSC: The Stereo Sound You Enjoy, But Often
Take for Granted

Stereo Sound is Born

Until the mid-1980s, television audio was nice and simple - it was mono. From 1978 through 1983, the Broadcast Television Systems Committee (BTSC), a subcommittee of the Electronic Industries Association (EIA), evaluated various systems for delivering stereo audio over analog television channels.

In 1983, the EIA recommended one system - now commonly known as the BTSC system - to the FCC, and it adopted was for use in the United States.

Innovation at Risk

Nearly 20 years after revolutionizing television viewing, BTSC is at risk. Congress has mandated that all broadcasting stations must convert from analog to digital on February 17, 2009. Analog TVs receiving over-the-air programming will still work after that date, but owners of these TVs will need to buy converter boxes to change digital broadcasts into analog format. Unfortunately, the converter box for analog televisions does not contain BTSC, the technology necessary to provide stereo sound. These unfortunate individuals will be sent back into the days of the 50's and will only have access to mono sound television, greatly impacting their ability to enjoy television sound as they have come to know it.

How Many Viewers will be Affected?

An estimated 75 million Americans own analog televisions, the kinds that rely on rooftop antennas for over the air transmission. Additionally, nearly 20 million households are estimated to rely solely on over-the-air TV signals. According to the National Association of Broadcasters, the elderly, low income and minority groups are expected to be affected by the DTV transition more than the rest of the population. According to Bruce Leichtman, of the Leichtman Research Group, "With just two and a half years to go before the digital TV transition takes place, two-thirds of Americans remain unaware of the pending analog cut-off, helping to explain why this deadline has had little impact on the purchase of HD and digital TVs to date." Clearly, a converter box is not enough to prevent millions of Americans from being disenfranchised during the Digital TV transition. 

The Solution

For about the cost of a postage stamp, the government or digital TV converter box manufacturers can restore and enhance the TV experience for those left behind in the DTV revolution. Technology that costs as little as 40 cents per box can be incorporated into the box to ensure a consistent viewing experience and meet the current deadlines. 

Leading the Way

Stereo sound is an important component of the average American's television experience. No one knows this better than THAT Corp. For over a decade, THAT Corp. has offered access to a significant portfolio of patents covering the BTSC system, in fact, several of THAT's employees, most notably THAT CEO Les Tyler, were key players in bringing the BTSC standard to life.

THAT's pool of BTSC-related patents has since been licensed worldwide to most every major equipment maker in the television industry, both in the professional and consumer markets, bringing quality stereo sound to millions.

THAT is also responsible for maintaining Standard of Quality (SOQ) guidelines and a specialized test lab to ensure the integrity of all BTSC-enabled products. Most every BTSC-enabled product ever realized has been certified against this SOQ.s.


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