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US 9,548,764 B1Granted
Memory efficient decoders for low-density parity-check codes
AssigneeMarvell International Ltd.
InventorsShashi Kiran Chilappagari, Dung Viet Nguyen
Life of this patent
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Abstract
A decoder including a compression module configured to select one or more nodes from a plurality of nodes associated with data being decoded by the decoder, where each node includes one or more bits, and to compress the one or more bits associated with the selected nodes. A memory is configured to store the compressed one or more bits associated with the selected nodes.
Claims22
A decoder comprising:
- a compression module configured to
- select one or more nodes from a plurality of nodes associated with data being decoded by the decoder, wherein each of the plurality of nodes includes a plurality of bits, and wherein the plurality of bits associated with one of the plurality of nodes includes (i) a first bit indicating whether a current estimate associated with the one of the plurality of nodes is flipped relative to a prior value of the current estimate and (ii) a second bit indicating reliability of the current estimate;
- and
- compress the plurality of bits associated with the selected one or more nodes to generate compressed information;
- and
- a memory configured to store the compressed information associated with the selected one or more nodes.
3 more elements
A method comprising:
- selecting one or more nodes from a plurality of nodes associated with data being decoded by a decoder, wherein each of the plurality of nodes includes a plurality of bits, and wherein the plurality of bits associated with one of the plurality of nodes includes (i) a first bit indicating whether a current estimate associated with the one of the plurality of nodes is flipped relative to a prior value of the current estimate and (ii) a second bit indicating reliability of the current estimate;
- compressing the plurality of bits associated with the selected one or more nodes to generate compressed information;
- and
- storing in memory the compressed information associated with the selected one or more nodes.
1 more element
Dependencies are inferred from the claim text.