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:
Nov. 13, 2007
Filed:
Feb. 14, 2003
Christine Pepin, Menlo Park, CA (US);
Johnny Matta, San Jose, CA (US);
Khosrow Lashkari, Fremont, CA (US);
Ravi Jain, Mountain View, CA (US);
Christine Pepin, Menlo Park, CA (US);
Johnny Matta, San Jose, CA (US);
Khosrow Lashkari, Fremont, CA (US);
Ravi Jain, Mountain View, CA (US);
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A coding system and method for a terminal including a multi-rate codec is disclosed. The terminal includes a multi-rate adaptive coder that is capable of transmitting a continuous voice stream transmission at a source code bit rate and a channel code bit rate. A quality of service probing module probes an end-to-end network path of the continuous voice stream transmission to obtain at least one quality of service parameter. A quality of service management module determines at least one constraint associated with the continuous voice stream transmission. An adaptive bit rate algorithm module dynamically adjusts the source code bit rate and the channel code bit rate as a function of the quality of service parameter and the constraint to obtain a maximum value of perceived user performance during the continuous voice stream transmission.