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US 8,493,246 B2Granted
Methods and systems for decoding data
AssigneeGeneral Electric Company
InventorsBudhaditya Deb, John Anderson Fergus Ross
Life of this patent
Estimating the term…
Abstract
A method of decoding is presented. The method includes the steps of receiving a coded bit stream that is encoded using a Non Return to Zero Inverted (NRZI) code and a 17 Parity Preserve/Prohibit (17PP) code, determining a 17PP modulated bit stream based upon the coded bit stream using a first selected decoding method, and generating a plurality of decisions by processing the 17PP modulated bit stream using a second selected decoding method, wherein the received coded bit stream comprises a plurality of coded bits, and the plurality of decisions are estimates of a plurality of source bits in a source information.
Claims25
A method, comprising:
- receiving a coded bit stream that is encoded using a Non Return to Zero Inverted (NRZI) code and a 17 Parity Preserve/Prohibit (17PP) code;
- determining a 17PP modulated bit stream based upon the coded bit stream using a first selected decoding method;
- and
- generating a plurality of decisions by processing the 17PP modulated bit stream using a second selected decoding method,
- wherein the received coded bit stream comprises a plurality of coded bits, and the plurality of decisions are estimates of a plurality of source bits in a source information.
2 more elements
A decoding method, comprising:
- receiving a coded bit stream that is encoded using a Non Return to Zero Inverted (NRZI) code and a 17 Parity Preserve/Prohibit (17PP) code;
- selecting a combination of a NRZI decoding method and a 17PP decoding method from a plurality of NRZI decoding methods and a plurality of 17PP decoding methods, respectively based upon a plurality of operating conditions;
- determining a 17PP modulated bit stream based upon the coded bit stream using the NRZI decoding method;
- and
- determining source information based upon the 17PP modulated bit stream using the 17PP decoding method.
2 more elements
A system comprising;
- a data storage device that stores a coded bit stream that is encoded using a Non Return to Zero Inverted (NRZI) code and a 17 Parity Preserve/Prohibit (17PP) code;
- a processing system that is in an operational communication with the data storage device, wherein the processing system is configured to:
- determine a 17PP modulated bit stream based upon the coded bit stream using an NRZI decoder;
- and
- generate a plurality of decisions by processing the 17PP modulated bit stream using a 17PP decoder,
- wherein the coded bit stream comprises a plurality of coded bits, and the plurality of decisions are estimates of a plurality of source bits in a source information.
3 more elements
A system comprising;
- a data storage device that stores a coded bit stream that is encoded using a Non Return to Zero Inverted (NRZI) code and a 17 Parity Preserve/Prohibit (17PP) code;
- a processing system that is in an operational communication with the data storage device, wherein the processing system is configured to:
- determine a 17PP modulated bit stream based upon the coded bit stream using a Hypothesis test decoding method;
- and
- generate a plurality of decisions by processing the 17PP modulated bit stream using a Naive decoding method,
- wherein the coded bit stream comprises a plurality of coded bits, and the plurality of decisions are estimates of a plurality of source bits in a source information.
3 more elements
A system, comprising;
- a data storage device that stores a coded bit stream that is encoded using a Non Return to Zero Inverted (NRZI) code and a 17 Parity Preserve/Prohibit (17PP) code;
- a processing system that is in an operational communication with the data storage device, wherein the processing system is configured to:
- determine a 17PP modulated bit stream based upon the coded bit stream using a Hypothesis test decoding method;
- and
- generate a plurality of decisions by processing the 17PP modulated bit stream using a BCJR method,
- wherein the coded bit stream comprises a plurality of coded bits, and the plurality of decisions are estimates of a plurality of source bits in a source information.
3 more elements
A communication system comprising:
- an encoder generating a coded bit stream that is encoded using a Non Return to Zero Inverted (NRZI) code and a 17 Parity Preserve/Prohibit (17PP) code;
- a decoder that receives the coded bit stream via a communication channel, wherein the decoder is configured to:
- determine a 17PP modulated bit stream based upon the received coded bit stream using an NRZI decoder;
- and
- generate a plurality of decisions by processing the 17PP modulated bit stream using a 17PP decoder,
- wherein the coded bit stream comprises a plurality of coded bits, and the plurality of decisions are estimates of source bits in a source information.
3 more elements
Dependencies are inferred from the claim text.