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:
Oct. 02, 2007
Filed:
May. 19, 2004
Jia-cheng Tsai, Tainan, TW;
Hung-chi Lai, Kaohsiung, TW;
Jian-hui Shen, Hsinchu, TW;
Industrial Technology Research Institute, Chutung Hsinchu, TW;
Abstract
The present invention relates to a re-configurable Viterbi decoder. By re-setting the values of some registers, the inside control path and data path of the Viterbi decoder can be appropriately changed so as to meet the requirements of different communication systems. The Viterbi decoder comprises a branch metric calculator for receiving data items to be decoded and calculating the branch metrics; an add-compare-select unit for performing an add-compare-select operation on the output of the branch metric calculator and the corresponding path metric; a path metric storage unit (PMS unit) for saving a new path metric produced by the add-compare-select operation in an in-place way; a path memory for storing the shifted out selection bit after the add-compare-select operation; and a trace back unit for reading the selection bit of the path memory so as to perform the feedback decoding.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile