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. 08, 2010
Filed:
Aug. 17, 2005
Takehiro Moriya, Tokyo, JP;
Noboru Harada, Tokyo, JP;
Yutaka Kamamoto, Tokyo, JP;
Takuya Nishimoto, Tokyo, JP;
Shigeki Sagayama, Tokyo, JP;
Takehiro Moriya, Tokyo, JP;
Noboru Harada, Tokyo, JP;
Yutaka Kamamoto, Tokyo, JP;
Takuya Nishimoto, Tokyo, JP;
Shigeki Sagayama, Tokyo, JP;
The University of Tokyo, Tokyo, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
An object of the present invention is to efficiently perform weighted difference coding of two or more signals. Determination is made as to which of independent coding and weighted difference coding is to be used for each channel so that the total energy of the channel signals and weighted difference signals is minimized. A weighted difference signal is generated on the basis of the determination and a reference signal (parent) and a weight is generated as auxiliary codes, the difference signal is treated as an input channel signal, and the process of coding determination and difference signal and auxiliary code generation is repeated. The difference signal generated at the last iteration of the process and a signal to be coded by independent coding are compressive coded and the auxiliary codes generated at the iterations of the process are coded and outputted.