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:
Aug. 11, 2015
Filed:
Jul. 30, 2010
Tomokazu Ishikawa, Osaka, JP;
Takeshi Norimatsu, Hyogo, JP;
Kok Seng Chong, Singapore, SG;
Huan Zhou, Singapore, SG;
Tomokazu Ishikawa, Osaka, JP;
Takeshi Norimatsu, Hyogo, JP;
Kok Seng Chong, Singapore, SG;
Huan Zhou, Singapore, SG;
Abstract
A coding apparatus which suppresses an extreme increase in a bit rate, includes: a downmixing and coding unit () that downmixes audio signals that have been provided, to reduce the number of channels to be fewer than the number of the provided audio signals, and to code the downmix signals; an object parameter extracting unit () that extracts parameters indicating correlation between the audio signals; and a multiplexing circuit () that multiplexes the extracted parameters with the generated downmix coded signals. The object parameter extracting unit () includes: an object classifying unit () that classifies each of the provided audio signals into a predetermined one of types based on audio characteristics; and an object parameter extracting circuit () that extracts parameters using a temporal granularity and a frequency granularity each of which is determined for a corresponding one of the types.