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Encoders for Block-Circulant LDPC Codes

詳細技術說明

None

*Abstract

Methods and apparatus to encode message input symbols in accordance with an accumulate-repeat-accumulate code with repetition three or four are disclosed. Block circulant matrices are used. A first method and apparatus make use of the block-circulant structure of the parity check matrix. A second method and apparatus use block-circulant generator matrices.

*IP Issue Date

Mar 3, 2009

*Principal Investigation

Name: Aliazam Abbasfar

Department:

Name: Kenneth Andrews

Department:

Name: Dariush Divsalar

Department:

Name: Samuel Dolinar

Department:

Name: Christopher Jones

Department:

Name: Jermy Thorpe

Department:

Name: Kung Yao

Department:

附加資料

Patent Number: US7499490B2
Application Number: US2005166041A
Inventor: Divsalar, Dariush | Abbasfar, Aliazam | Jones, Christopher R. | Dolinar, Samuel J. | Thorpe, Jeremy C. | Andrews, Kenneth S. | Yao, Kung
Priority Date: 24 Jun 2005
Priority Number: US7499490B2
Application Date: 24 Jun 2005
Publication Date: 3 Mar 2009
IPC Current: H04B000166
US Class: 375240 | 341051 | 341074 | 375254 | 375271 | 375302 | 714758 | 714800
Assignee Applicant: California Institute of Technology,Pasadena | The Regents of the University of California
Title: Encoders for block-circulant LDPC codes
Usefulness: Encoders for block-circulant LDPC codes
Summary: For block circulant LDPC used in communication system such as cellular telephones, hard disk drives, magnetic tape recorders and computer modem.
Novelty: Encoder for e.g. cellular telephones, has accumulator that accumulates permuted final intermediate symbols to form specific set of output symbols

主要類別

信息和通信技術/電信

細分類別

電信

申請號碼

7499490

其他

Tech ID/UC Case

22320/2009-131-0

Related Cases

2009-131-0

國家/地區

美國