Viterbi decoding device and method for decoding a signal produced by a convolutional encoder
US-9294134-B2 · Mar 22, 2016 · US
Viterbi butterfly operations
US8943392B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8943392-B2 |
| Application number | US-201213669447-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 6, 2012 |
| Priority date | Nov 6, 2012 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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A decoding system suitable for Viterbi decoding includes a decoder that includes a state metrics array, a butterfly unit, and a constraint length multiplexer. The state metrics array includes registers in which each register is arranged to store a state metric for processing. The butterfly unit includes an array of butterfly elements where each butterfly element is arranged to generate intermediate state metrics in parallel with other butterfly elements in the butterfly unit. The constraint length multiplexer unit is arranged to generate new state metrics in response to the intermediate state metrics and a Viterbi constraint length value stored in a constraint length register. Transition bits can also be generated in response to the constraint length.
First claim
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What is claimed is: 1. A processor, comprising a state metrics array having registers in which each register is arranged to store a state metric for processing; a butterfly unit that includes an array of butterfly elements wherein each butterfly element is arranged to generate intermediate state metrics in parallel with other butterfly elements in the butterfly unit; wherein each butterfly element is arranged to generate intermediate transition bits in parallel with other butt…
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- H03M13/4107Primary
Electricity · mapped topic
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- What does patent US8943392B2 cover?
- A decoding system suitable for Viterbi decoding includes a decoder that includes a state metrics array, a butterfly unit, and a constraint length multiplexer. The state metrics array includes registers in which each register is arranged to store a state metric for processing. The butterfly unit includes an array of butterfly elements where each butterfly element is arranged to generate intermed…
- Who is the assignee on this patent?
- Texas Instruments Inc, Texas Instruments Inc
- What technology area does this patent fall under?
- Primary CPC classification H03M13/4107. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 27 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).