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 Title: |
US6430713:
System and method for constructing low complexity block coders
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Marcus, Brian Harry; Los Altos, CA
Modha, Dharmendra Shantilal; San Jose, CA
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| Assignee: |
International Business Machines Corporation, Armonk, NY
other patents from INTERNATIONAL BUSINESS MACHINES CORPORATION (280070) (approx. 44,393)
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| Published / Filed: |
2002-08-06
/ 1999-06-30
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| Application Number: |
US1999000345579
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| IPC Code: |
Advanced:
H03M 5/14;
G11B 20/14;
Core:
H03M 5/00;
more...
IPC-7:
G06F 11/00;
H03M 7/00;
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| ECLA Code: |
H03M5/14B;
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| U.S. Class: |
714/701;
341/058;
341/059;
341/095;
341/106;
360/040;
360/048;
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| Field of Search: |
714/752,746,795,796,700,701
341/058,59,95,81,65,68,106,61,69
360/032,40,48
375/241,290,341
711/200,202,206
382/232
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| Priority Number: |
| 1999-06-30 |
US1999000345579 |
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| Abstract: |
A method for designing a computer program for finding a low-complexity coder for constrained block codes for application to timing recovery or error control in data recording systems. The method includes (1) decomposing an input set of candidate codewords into simple subsets of codewords, (2) providing, for each simple subset of codewords, a respective subset of datawords, and (3) filling in certain coordinates in the datawords by values of certain coordinates in the codewords.
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| Attorney, Agent or Firm: |
Rogitz, John L. ;
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| Primary / Asst. Examiners: |
Moise, Emmanuel L.;
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| INPADOC Legal Status: |
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| Family: |
None
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First Claim:
Show all 22 claims |
We claim:
1. A computer system, comprising:
- a general purpose computer; and
- a program of instructions accessible by the computer to undertake method acts to map p-bit datawords to q-bit codewords, the method acts comprising:
- receiving an input set of q-bit candidate codewords;
- using the input set of codewords, establishing plural simple subsets of codewords;
- associating the subsets with respective p-bit datawords; and
- mapping codewords to datawords using the subsets.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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