Method and apparatus for encoding and decoding of low density parity check codes
US-2024048158-A1 · Feb 8, 2024 · US
Priori training in a mobile DTV system
US8995582B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8995582-B2 |
| Application number | US-201013805780-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 25, 2010 |
| Priority date | Jun 25, 2010 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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An apparatus for decoding digital data includes a processor for recreating a priori training information received with the digital data for provision to a maximum a posteriori (MAP) decoder. The processor detects locations of symbols in the input data stream and regenerates data corresponding to each location. The regenerated data is used by the processor to recreate a priori information suitable to each location of the input data stream location and provides the recreated a priori information to the MAP decoder to aid in the decoding of the digital data. In a preferred implementation, the a priori training data is structured so that after deterministic processing and trellis encoding at the transmitter, it can be regenerated by the processor as a pseudo noise (PN) sequence using a PN sequence generator.
First claim
Opening claim text (preview).
The invention claimed is: 1. An apparatus for decoding a data stream, the data stream organized in blocks of symbols, wherein the data stream is encoded by a digital encoder processor comprising a plurality of deterministic processing units followed by a trellis encoder, the apparatus comprising: a preamble processor for determining a location of training data in the data stream and generating the data associated with the location using a pseudo noise (PN) sequence generator, wher…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8995582B2 cover?
- An apparatus for decoding digital data includes a processor for recreating a priori training information received with the digital data for provision to a maximum a posteriori (MAP) decoder. The processor detects locations of symbols in the input data stream and regenerates data corresponding to each location. The regenerated data is used by the processor to recreate a priori information suitab…
- Who is the assignee on this patent?
- Markman Ivonete, Thomson Licensing
- What technology area does this patent fall under?
- Primary CPC classification H03M13/27. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).