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:
Feb. 07, 1995
Filed:
Sep. 30, 1991
Applicant:
Inventor:
Thomas E Lynch, Brighton, MA (US);
Assignee:
Kurzwell Applied Intelligence, Inc., Waltham, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10C / ; G10L / ;
U.S. Cl.
CPC ...
395-251 ; 395245 ; 395275 ; 395267 ; 381 41 ;
Abstract
In the speech recognition system disclosed herein, the Viterbi decoding of an acoustic recognition network is augmented by implementing additional data structures for each arc in the network which represent, for each arc, the best path cost of reaching the last point on that arc and an arc in time which represents, for the best path, the time of leaving the previous arc. These additional data structures enable a trace back procedure which identifies not only the presumably optimal path but also alternate paths having good scores.