Zenith Details Proposed DTV Enhancements; 'E-VSB' Further Improves Signal Robustness

Apr 20, 2001, 01:00 ET from Zenith Electronics Corporation

    LAS VEGAS, April 20 /PRNewswire Interactive Press Release/ -- Building on
 the U.S. digital television (DTV) standard, Zenith Electronics Corporation
 today announced "E-VSB" technology, a series of compatible enhancements aimed
 at strengthening the overall performance of digital TV broadcasting.
     (Photo:  http://www.newscom.com/cgi-bin/prnh/19981120/CGF017 )
     In addition to enhancing terrestrial reception to fixed antennas and
 receivers, the E-VSB system will be applicable to portable and pedestrian DTV
 service, and in the more robust modes, even mobile service.  Use of E-VSB
 would not require modifications to the FCC's emission standard.
     Zenith, a leading innovator in digital television and the developer
 of vestigial sideband (VSB) modulation, unveiled the details of this new
 approach at NAB 2001, the annual convention of the National Association of
 Broadcasters.  On April 2, the company formally submitted its E-VSB plan to
 the Advanced Television Systems Committee (ATSC), which established a subgroup
 to explore possible VSB Enhancements.
     E-VSB is a set of enhancements to ATSC 8-VSB that trades payload bit rate
 for robustness.  Zenith's multi-rate modulation method is fully compatible
 with the current ATSC standard and transparent to standard ATSC receivers
 already deployed.
     Properly equipped E-VSB receivers will be able to decode both standard
 8-VSB and enhanced E-VSB programs and data with substantially improved
 multipath performance for both, as well as significantly improved "white
 noise" performance for the enhanced programs and data.
     To the extent there was an intra-industry debate over the DTV transmission
 standard, that discussion ended in January when the NAB and Association for
 Maximum Service Television (MSTV) boards of directors voted overwhelmingly to
 endorse the incumbent standard and reject a European alternative.  The Federal
 Communications Commission (FCC) reiterated its strong support for the ATSC DTV
 standard, adding that it has no intention of revisiting the matter.
     Today some 186 television stations spanning 64 media markets are offering
 digital programming to an estimated two-thirds of all U.S. TV households.
 Under the FCC's timetable, all commercial TV stations must be broadcasting
 digitally by May 1, 2002.
     Zenith Electronics Corporation, based in Lincolnshire, Ill., is a
 long-time leader in consumer electronics and a primary developer of digital
 high-definition television (HDTV) technology.  Zenith developed the VSB
 digital transmission system adopted by the FCC as part of the ATSC DTV
 standard.  To assist broadcasters in the rollout of digital television
 service, Zenith offers a full line of digital broadcast products, including
 ATSC modulators, demodulators, translators and receivers. Zenith is a wholly
 owned subsidiary of LG Electronics Inc. Visit Zenith on the World Wide Web at
 www.zenith.com .
 
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SOURCE Zenith Electronics Corporation
    LAS VEGAS, April 20 /PRNewswire Interactive Press Release/ -- Building on
 the U.S. digital television (DTV) standard, Zenith Electronics Corporation
 today announced "E-VSB" technology, a series of compatible enhancements aimed
 at strengthening the overall performance of digital TV broadcasting.
     (Photo:  http://www.newscom.com/cgi-bin/prnh/19981120/CGF017 )
     In addition to enhancing terrestrial reception to fixed antennas and
 receivers, the E-VSB system will be applicable to portable and pedestrian DTV
 service, and in the more robust modes, even mobile service.  Use of E-VSB
 would not require modifications to the FCC's emission standard.
     Zenith, a leading innovator in digital television and the developer
 of vestigial sideband (VSB) modulation, unveiled the details of this new
 approach at NAB 2001, the annual convention of the National Association of
 Broadcasters.  On April 2, the company formally submitted its E-VSB plan to
 the Advanced Television Systems Committee (ATSC), which established a subgroup
 to explore possible VSB Enhancements.
     E-VSB is a set of enhancements to ATSC 8-VSB that trades payload bit rate
 for robustness.  Zenith's multi-rate modulation method is fully compatible
 with the current ATSC standard and transparent to standard ATSC receivers
 already deployed.
     Properly equipped E-VSB receivers will be able to decode both standard
 8-VSB and enhanced E-VSB programs and data with substantially improved
 multipath performance for both, as well as significantly improved "white
 noise" performance for the enhanced programs and data.
     To the extent there was an intra-industry debate over the DTV transmission
 standard, that discussion ended in January when the NAB and Association for
 Maximum Service Television (MSTV) boards of directors voted overwhelmingly to
 endorse the incumbent standard and reject a European alternative.  The Federal
 Communications Commission (FCC) reiterated its strong support for the ATSC DTV
 standard, adding that it has no intention of revisiting the matter.
     Today some 186 television stations spanning 64 media markets are offering
 digital programming to an estimated two-thirds of all U.S. TV households.
 Under the FCC's timetable, all commercial TV stations must be broadcasting
 digitally by May 1, 2002.
     Zenith Electronics Corporation, based in Lincolnshire, Ill., is a
 long-time leader in consumer electronics and a primary developer of digital
 high-definition television (HDTV) technology.  Zenith developed the VSB
 digital transmission system adopted by the FCC as part of the ATSC DTV
 standard.  To assist broadcasters in the rollout of digital television
 service, Zenith offers a full line of digital broadcast products, including
 ATSC modulators, demodulators, translators and receivers. Zenith is a wholly
 owned subsidiary of LG Electronics Inc. Visit Zenith on the World Wide Web at
 www.zenith.com .
 
                     MAKE YOUR OPINION COUNT -  Click Here
                http://tbutton.prnewswire.com/prn/11690X62633127
 
 SOURCE  Zenith Electronics Corporation