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:
Mar. 09, 1999
Filed:
Mar. 11, 1997
Jun-jin Kong, Seongnam, KR;
Yong-woo Park, Suwon, KR;
Samsung Electronics Co., Ltd., Kyungki-do, KR;
Abstract
A Viterbi decoder which operates a plurality of states at one time to thereby decode a plurality of channels at an increased speed. The decoder includes a branch metric calculating unit which receives convolutional data and calculates a plurality of branch metrics. A branch metric allocating unit allocates the plurality of branch metrics as even and odd branch metrics. A state metric storing unit stores a current state metric and allocates a plurality of state metrics as even and odd state metrics. First and second add-compare-select (ACS) units perform addition, comparison, and selection on the even branch and state metrics, and select paths having optimum distances. Third and fourth ACS units perform addition, comparison, and selection on the odd branch and state metrics, and select paths having optimum distances. A path tracing logic unit traces the path selection information selected in the first through fourth ACS units, and outputs decoded data. A path storing unit stores a path selection signal generated and selected in the path selection information controller.