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.

Date of Patent:
Sep. 23, 2003

Filed:

Sep. 01, 2000
Applicant:
Inventors:

Takahiko Nakamura, Tokyo, JP;

Hachiro Fujita, Tokyo, JP;

Hideo Yoshida, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M 1/300 ;
U.S. Cl.
CPC ...
H03M 1/300 ;
Abstract

In a conventional turbo error-correcting decoder, the soft-decision information is corrected by using an average value (A) and a variance value (&sgr; ) of reliability of received bits. From the reliability-corrected soft-decision information, the hard-decision information is obtained. This process of calculation is complex, giving rise to a problem of reduced processing speed and complicated circuit. To deal with this problem, an average value of reliability of received information bits is determined and then a ratio between the average value and the soft-decision information is also determined. This ratio is converted by the conversion table into the reliability-corrected soft-decision information, from which the hard-decision information is obtained.


Find Patent Forward Citations

Nakamura, Takahiko. (2003). Turbo error-correcting decoder and turbo error-correcting decoding method (U.S. Patent No. 6625778). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6625778

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…