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8VSB DTV signals with PCCC and subsequent trellis coding

  • US 8,386,896 B2
  • Filed: 05/13/2011
  • Issued: 02/26/2013
  • Est. Priority Date: 06/29/2007
  • Status: Expired due to Fees
First Claim
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1. A receiver for 8VSB digital television signals that convey robust data subjected to parallel concatenated convolutional coding (PCCC) before being further coded by 2/3 trellis coding of said 8VSB digital television signals, said receiver comprising:

  • apparatus for converting a selected 8VSB digital television signal received as an amplitude-modulated radio-frequency carrier to a baseband digital television signal, which apparatus includes front-end circuitry, an analog-to-digital converter, a demodulator for 8VSB digital television signals and a channel equalization filter;

    a 12-phase trellis decoder connected for providing trellis decoding results that include soft decisions concerning symbols in said baseband digital television signal, said 12-phase trellis decoder connected to receive the baseband digital television signal from said apparatus for converting a selected 8VSB digital television signal received as an amplitude-modulated radio-frequency carrier to a baseband digital television signal; and

    further apparatus connected for decoding selected portions of said trellis decoding results conveying said PCCC that encodes said robust data, thus to reproduce said robust data.

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