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:
May. 04, 2010
Filed:
May. 10, 2005
Takeshi Mori, Higashiyamoto, JP;
Hitoshi Ohmuro, Kodaira, JP;
Yusuke Hiwasaki, Kodaira, JP;
Akitoshi Kataoka, Nerima-ku, JP;
Takeshi Mori, Higashiyamoto, JP;
Hitoshi Ohmuro, Kodaira, JP;
Yusuke Hiwasaki, Kodaira, JP;
Akitoshi Kataoka, Nerima-ku, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
Input speech is coded in an encoder (), the coded speech is decoded in a decoder (), compensatory speech which compensates the speech of the current frame is generated in a compensatory speech generating part () by using past decoded speech, the quality of the compensatory speech is evaluated by using the input speech and the compensatory speech and a duplication level is generated the value of which increases incrementally with decreasing speech quality evaluation value in a speech quality evaluating part (), and as many identical packets as the number specified by the duplication level is generated for the coded speech in a packet generating part (), and the packets are transmitted, thereby reducing the possibility that packet loss will occur at the receiving end.