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. 20, 2013
Filed:
Jan. 11, 2010
Alan H. Matten, Chicago, IL (US);
Alan H. Matten, Chicago, IL (US);
Alcatel Lucent, Paris, FR;
Abstract
An apparatus in one example comprises a receiver of a first mobile switching center. The receiver is configured to receive an input signal in a first encoding format. The input signal has an input payload. The first encoding format is a dual-mode InterSystem Link Protocol (ISLP)/Enhanced Variable Rate Coding (EVRC) codec. The apparatus further comprises a transcoder operatively coupled to the receiver. The transcoder is structured to transcode in a single channel the first encoding format to a second encoding format. The transcoder is configured to generate an output signal in the second encoding format for transmission over an internet protocol (IP) network to a second mobile switching center based on the input signal. The output signal has an output payload based on the input payload. The transcoder is configured to switch between a default voice handling mode for the EVRC codec and a clear channel mode for the ISLP codec to form the output payload.