Posted on July 20, 2004 in Press Releases
E-VSB Provides Additional Flexibility
WASHINGTON, D.C., July 20, 2004 – The Advanced Television Systems Committee, Inc. (ATSC) has approved an amendment to the A/53C DTV Standard that adds a new optional mode of transmission called Enhanced VSB (E-VSB). Services transmitted in the E-VSB mode have additional forward error correction coding layers that allow reception under weaker signal conditions.
“E-VSB was developed in response to the desire of broadcasters to add more flexibility to the DTV Standard” said Mark Richer, ATSC president. “E-VSB was chosen from among multiple technologies after a rigorous evaluation process that included laboratory and field tests.”
E-VSB provides optional modes of operation that allow broadcasters to trade-off data rate for a lower carrier-to-noise threshold for some services. Examples of potential applications for E-VSB include delivery of “fall back” audio, programming services targeted at small DTV receivers with indoor antennas, non-real time transmissions of file-based information to handheld and pedestrian receivers, and robust data broadcasting to devices such as desktop and laptop computers. The ATSC has previously published a number of related Candidate Standards that support the E-VSB System. CS/T3-608 and CS/T3-609 provide transport specifications, and CS/T3-606 provides enhancements to the ATSC PSIP Standard (A/65). Enhancements to AC-3 audio (E-AC-3) are contained in documents CS/T3-613 and CS/T3-614. ATSC Standards and Candidate Standards are available at atscnextgentv.vp77wsn4-liquidwebsites.com/standards.html.
The Advanced Television Systems Committee, Inc. is an international, non-profit organization developing voluntary standards for digital television. The ATSC member organizations represent the broadcast, broadcast equipment, motion picture, consumer electronics, computer, cable, satellite, and semiconductor industries.
Lisa Hester, ATSC (202) 828-3130
Posted in Press Releases
ATSC is a membership organization with both voting and observer categories. Voting members include corporations, nonprofit organizations, and government entities, and they participate actively in the work of ATSC. Observers are individuals or entities not eligible to be a voting member.
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The Advanced Television Systems Committee, Inc., is an international, non-profit organization developing voluntary standards and recommended practices for digital terrestrial broadcasting. ATSC member organizations represent the broadcast, broadcast equipment, motion picture, consumer electronics, computer, cable, satellite, and semiconductor industries. ATSC also develops digital terrestrial broadcasting implementation strategies and supports educational activities on ATSC standards.