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. 01, 1985
Filed:
Sep. 09, 1983
Robert C Davis, Indialantic, FL (US);
Harris Corporation, Melbourne, FL (US);
Abstract
A Viterbi algorithm error correcting decoder is configured of a trellis of branch-distance circuits each of which is formed of sets of diode and controlled interconnecting switches. During a respective bit time of the signal to be decoded, the branch-distance circuits are controlled so as to connect a number of diodes in each branch of the trellis proportional to the distance of the diode branch of interest to the received code branch. Due to the nonlinear voltage-current characteristic of a diode, only the path through the trellis of the branch-distance circuits having the minimum distance from the received data will draw current. Detection of this current-carrying path is used to implement the Viterbi algorithm decoder.