New Standard Outlines Transport And Coding Requirements For DTV

13-Mar-02

The Consumer Electronics Association (CEA), in cooperation with the Electronics Industries Alliance (EIA) recently announced the approval and publication of the EIA/CEA-849A standard for source device compatibility with digital television (DTV) displays. EIA/CEA-849A specifies profiles for various applications of the EIA-775A DTV 1394 Interface Specification, including the types of digital transport methods or content encoding that must be supported. Specifically, EIA/CEA-849A includes application profiles for digital streams compliant with ATSC terrestrial broadcast, direct-broadcast satellite (DBS), U.S. cable and standard-definition digital video (DV) camcorders. This standard defines transport and content coding formats that a compliant DTV must support in order to interoperate with various digital audio and video sources. EIA/CEA-849A compliant DTVs will also adhere to the requirements of EIA-775-A DTV 1394 Interface.EIA/CEA-849A is the basis of CEA's ""DTV Link"" logo program announced and launched in late 2001. The 1394 interface logos were developed with the goal of creating graphics and descriptors that would allow a consumer to see a product at retail, note the graphic, and then match that graphic with another product that they already own or may want to purchase. Through this matching logos process, the consumer would readily know the two products would interoperate. In addition, CEA sought and received input from the Society of Cable Telecommunications Engineers (SCTE), which facilitates standards development for the telecommunications industry, to ensure compatibility.""EIA/CEA-849A and the underlying EIA-775A specifications, should provide manufacturers with the technical 'build-to' guidance, to create plug-compatible 1394 A/V products,"" said Frank Kot of Philips Consumer Electronics and chair of the R-4.8 DTV Interface Subcommittee. ""The CEA DTV-LINK logo effort should provide similar guidance to consumers.""For more information about the CEA, visit www.ce.org.

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