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:
Jun. 12, 2007
Filed:
Mar. 26, 2003
Toshitaka Yamato, Kobe, JP;
Hideki Kitao, Kobe, JP;
Shinichi Iwamoto, Kobe, JP;
Osamu Iwata, Kobe, JP;
Masataka Nakamura, Hiroshima, JP;
Yoshinao Oomoto, Mitaka, JP;
Toshitaka Yamato, Kobe, JP;
Hideki Kitao, Kobe, JP;
Shinichi Iwamoto, Kobe, JP;
Osamu Iwata, Kobe, JP;
Masataka Nakamura, Hiroshima, JP;
Yoshinao Oomoto, Mitaka, JP;
Fujitsu Ten Limited, Kobe-shi, JP;
Abstract
A speech section detection apparatus capable of reliably detecting a speech section even for a word containing a glottal stop sound or for a word containing a succession of 's' column sounds or 'h' column sounds (sounds in the third column or the sixth column in the Japanese Goju-on Zu syllabary table). A speech signal detected by a microphone is amplified by a line amplifier, and converted by an analog/digital converter into a digital signal which is then stored in a memory. The stored speech signal is fetched into a pitch detector where a speech pitch is extracted by processing the speech signal in time domain. A gate signal generator controls the gate signal based on the speech pitch, and a speech section signal generator controls a speech section signal based on the gate signal. A word can be extracted by segmenting the speech signal stored in the memory in accordance with the speech section signal.