RELIABLE DIVERSITY ARCHITECTURE FOR A MOBILE DTV SYSTEM
First Claim
1. An apparatus for receiving a digital data stream, the digital data stream comprising alternating groups of information blocks and groups of parity blocks, each group of information blocks including a plurality of information blocks and each group of parity blocks including a plurality of parity blocks, the apparatus comprising:
- a demodulator that receives the digital data stream and demodulates the digital data stream;
an equalizer, that compensates for distortions in the digital data stream to generate a compensated digital data stream;
a delay buffer, that generates a first stream of digital data representing the compensated digital data stream and a second stream of digital data representing the compensated digital data stream delayed for a predetermined period;
a forward error correction block, that receives and processes the first and second streams of digital data from the delay buffer, and outputs an error corrected stream of digital data; and
a transport block, that receives and processes the error corrected stream from the forward error correction block for display.
2 Assignments
0 Petitions
Accused Products
Abstract
A digital data stream comprises alternating groups of information blocks and groups of parity blocks, each group of information blocks includes multiple information blocks and each group of parity blocks includes multiple parity blocks. An apparatus for receiving a digital data stream comprises a demodulator that receives and demodulates a digital data stream. An equalizer compensates for distortions in the digital data stream. A delay buffer generates a first stream of digital data representing the compensated digital data stream and a second stream of digital data representing a delayed version of the compensated digital data stream. A forward error correction block receives and processes the first and second streams of digital data from the delay buffer, and outputs an error corrected stream of digital data. A transport block receives and processes the error corrected stream from the forward error correction block for display
13 Citations
16 Claims
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1. An apparatus for receiving a digital data stream, the digital data stream comprising alternating groups of information blocks and groups of parity blocks, each group of information blocks including a plurality of information blocks and each group of parity blocks including a plurality of parity blocks, the apparatus comprising:
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a demodulator that receives the digital data stream and demodulates the digital data stream; an equalizer, that compensates for distortions in the digital data stream to generate a compensated digital data stream; a delay buffer, that generates a first stream of digital data representing the compensated digital data stream and a second stream of digital data representing the compensated digital data stream delayed for a predetermined period; a forward error correction block, that receives and processes the first and second streams of digital data from the delay buffer, and outputs an error corrected stream of digital data; and a transport block, that receives and processes the error corrected stream from the forward error correction block for display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for decoding a digital data stream, comprising:
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a first subcore, that processes a first stream of digital data producing a first processed stream of digital data; a second subcore, that processes a second stream of digital data producing a second processed stream of digital data; a stagger multiplexer, that generates a combined stream of digital data from the first and second processed streams of digital data; and a stagger demultiplexer, that processes the combined stream of digital data to generate a first stream and a second stream of extrinsic digital data; wherein the first subcore further processes the first stream of extrinsic digital data to output a third digital data stream, the second subcore further processes the second stream of extrinsic digital data to output a fourth digital data stream, and the first and third streams are provided to a first subcore of a subsequent forward error correction core of the plurality of forward error correction cores and the second and fourth streams are provided to a second subcore of the subsequent forward error correction core. - View Dependent Claims (10, 11)
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12. A method for receiving a digital data stream, the digital data stream comprising alternating groups of information blocks and groups of parity blocks, each group of information blocks including a plurality of information blocks and each group of parity blocks including a plurality of parity blocks, the method comprising:
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demodulating, in a demodulator, the digital data stream producing a demodulated digital data stream; compensating, with an equalizer, the demodulated digital data stream for distortions producing a compensated digital data stream; generating, with a delay buffer, a first stream of digital data representing the compensated digital data stream and a second stream of digital data representing the compensated digital data stream delayed for a predetermined delay period; processing, with a forward error correction block, the first and second streams of digital data to generate an error corrected stream of digital data; transmitting, the error corrected stream of digital data for display. - View Dependent Claims (13, 14, 15, 16)
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Specification