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:
Jul. 13, 1999
Filed:
Mar. 20, 1997
Tetsuo Kosaka, Zama, JP;
Yasunori Ohora, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An apparatus and method for speech recognition includes a device and a step for obtaining a mean of the time of a speech portion in the Cepstrum dimension from the speech portion of the input speech, a device and step for obtaining a mean of a time of the non-speech portion in the Cepstrum dimension from the non-speech portion of the input speech, a device and step for converting each mean time from a Cepstrum region to a linear region, and after that, subtracting it on a linear spectrum dimension, converting the subtracted mean into a Cepstrum dimension, subtracting a mean of a time of a speech portion in a Cepstrum dimension in a speech database for learning from the converted result, and adding the subtracted result to a speech model expressed by Cepstrum. By this arrangement, even when noise is large, the presumed precision of a line fluctuation is raised and the recognition rate can be improved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile