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:
Jan. 27, 2015
Filed:
Nov. 06, 2012
Texas Instruments, Incorporated, Dallas, TX (US);
Prohor Chowdhury, Bangalore, IN;
Alexander Tessarolo, Lindfield, AU;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A decoding system suitable for Viterbi decoding includes a decoder that includes a state metrics array, a butterfly unit, and a constraint length multiplexer. The state metrics array includes registers in which each register is arranged to store a state metric for processing. The butterfly unit includes an array of butterfly elements where each butterfly element is arranged to generate intermediate state metrics in parallel with other butterfly elements in the butterfly unit. The constraint length multiplexer unit is arranged to generate new state metrics in response to the intermediate state metrics and a Viterbi constraint length value stored in a constraint length register. Transition bits can also be generated in response to the constraint length.