Digital E8-VSB reception system and E8-VSB data...

Details Digital E8-VSB reception system and E8-VSB data... Digital E8-VSB reception system and E8-VSB data...

2004-11-22

2009-10-06

Ngo, Ricky (Department: 2416)

Multiplex communications

Communication over free space

Combining or distributing information via time channels

C370S535000, C370S512000, C370S527000, C370S324000, C370S204000, C375S241000, C375S240000, C348S368000

Reexamination Certificate

active

07599348

ABSTRACT:
An enhanced 8-VSB reception system and E8-VSB data demultiplexing method, by which an E8-VSB signal can be stably received as well as a previous ATSC 8VSB signal, is disclosed. Herein, the enhanced data are coded at ½ code rate and ¼ code rate in the new E8-VSB transmission system compatible with the conventional ATSC 8VSB system, respectively. The ½ and ¼ enhanced data are multiplexed by 164-byte packet unit according to the previously determined multiplexing format and further pre-processed to output as the format of the MPEG transport packet. And, the pre-processed enhanced data and the main data are multiplexed again by 188-byte packet unit according to the previously determined multiplexing format. The E8-VSB map information, which was inserted in the field sync section in the E8-VSB transmission system to be transmitted, is extracted to generate the information indicating the attributes of the respective E8-VSB data. The normal data, ½ enhanced data, and ½ enhanced data are separated from each other to be decoded in the channel decoder.

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