The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 16, 2000
Filed:
Nov. 20, 1997
Applicant:
Inventor:
Ryutaro Yamanaka, Kanagawa, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
714780 ; 714758 ; 714784 ; 714795 ;
Abstract
The error correction device is provided with an internal code decoder which outputs a series of decoded data and reliability information of the decoded data, a CRC (Cyclic Redundancy Check) decoder, a de-interleaver, an erasure position detector, and an external code decoder for decoding an external code by soft judgement. When the external code is decoded by the soft judgment, not only the series of decoded data of the internal code and their reliability information but also frame error information based on CRC are used as input signals. It is therefore possible to perform error correction with a high accuracy and to obtain low BER characteristics.