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:
Sep. 28, 1999
Filed:
Sep. 24, 1998
Dae-Il Oh, Kyounggi-do, KR;
Hyundai Electrinics Ind. Co., Ltd., Kyounggi-do, KR;
Abstract
A viterbi decoder includes a maximum branch metric value detecting device separated from a feedback loop consisting of an ACS arithmetic unit, a normalization arithmetic unit, and a state value storing device. In operation, a maximum branch metric value is detected by utilizing the output of the state value storing device, to thereby enhance operating speed. Further, a judgment is made as to whether a state having the minimum state value at an immediately preceding time is back-traceable from a state having the minimum state value at a current time by using survivor path information. Non-back-traceable non-correspondences are then detected, and the number of occurrences of non-correspondences are counted. If the occurrences of non-correspondences exceed a reference value, it is judged a non-synchronization. In another method, synchronization/non-synchronization is judged by detecting whether a trace back is possible, without utilizing survivor path information.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile