Bloomberg the Company & Products

Bloomberg Anywhere Login

Bloomberg

Connecting decision makers to a dynamic network of information, people and ideas, Bloomberg quickly and accurately delivers business and financial information, news and insight around the world.

Company

Financial Products

Enterprise Products

Media

Customer Support

  • Americas

    +1 212 318 2000

  • Europe, Middle East, & Africa

    +44 20 7330 7500

  • Asia Pacific

    +65 6212 1000

Communications

Industry Products

Media Services

Follow Us

Businessweek Archives

Tv Ghosts? Who Ya Gonna Call? Philips, Maybe


Developments to Watch

TV GHOSTS? WHO YA GONNA CALL? PHILIPS, MAYBE

Television stations are getting ready to zap ghosts. The shadows are produced when a TV receiver picks up an echo that arrives an instant after the main signal. To wipe out ghosts, broadcasters and cable operators can send a reference signal in the intervals between picture frames. A chip in the TV or a set-top box will detect ghosts in the reference signal and thus pinpoint and zap ghosts in the picture itself.

Ghost-busting should be good business for Philips Electronics, whose reference signal was picked as the U.S. standard. About a third of U.S. broadcasters have spent from $300 to $4,000 apiece for gear to transmit reference signals. Field tests are expected later this year in Europe, Brazil, and Australia. Japan and South Korea already use older, analog reference signals. Set-top ghost cancelers that work off the signals will go on sale from Philips next year at less than $200.EDITED BY PETER COY


LIMITED-TIME OFFER SUBSCRIBE NOW
 
blog comments powered by Disqus