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:
Dec. 16, 2014
Filed:
Jul. 02, 2009
Hideaki Yamada, Saitama, JP;
Hajime Nakamura, Saitama, JP;
Hideaki Yamada, Saitama, JP;
Hajime Nakamura, Saitama, JP;
KDDI Corporation, Tokyo, JP;
Abstract
A technique is disclosed of controlling a layer count of actual layers within a layered media stream having a maximum number 'M' of layers that include 'm(0≦m≦M)' video layers and an audio layer. The technique includes: receiving from at least one destination a quality event indicative of audio quality of the audio layer; calculating an estimated value of subjective quality of the received audio layer, based on the received quality event; calculating a quality value indicative of transmission quality of the media stream, based on the calculated subjective quality, and a ratio of a layer count “m” of at least one of the video layers, to the maximum number “M;” and, based on the calculated quality value, controlling a layer count of actual layers within the media stream.