Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
September 26, 2006
Patent Application Number
10690369
Date Filed
October 21, 2003
Patent Primary Examiner
Patent abstract
The present invention discloses an apparatus used to generate a branch metric for a Viterbi decoder. The apparatus includes a linear feedback shift register and a convolutional encoder. The linear feedback shift register performs a calculation based on a specific primitive characteristic polynomial and creates a binary number sequence after the calculation. The convolutional encoder generates the branch metric by encoding the binary number sequence. Besides, the apparatus is further capable of selecting one of the several built-in primitive characteristic polynomials by inputting a selection signal in order to conform to the request of the different systems.
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