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.:

US 7933548 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 26, 2011

Filed:

Oct. 24, 2006
Applicant:

Ukyou Mori, Tokyo, JP;

Inventor:

Ukyou Mori, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04H 40/00 (2008.01);
U.S. Cl.
CPC ...
Abstract

Provided is a cellular phone enabling improvement of the level of a sense of hearing of a pseudo noise which is generated when there exists no voice signal. In the cellular phone, frame type information included in a baseband signal 'in' is identified by the frame type identification unitand when the frame type information represents pseudo noise information, a pseudo noise signal generated by the AMR (Adaptive Multi-Rate) decoderwith an internal pseudo noise generator is output to the call receiver unitwith its level reduced by a predetermined amount by the signal level change amount calculation unitand the signal level change unit, while when the frame type information represents a voice signal, the voice signal decoded by the AMR (Adaptive Multi-Rate) decoderwith an internal pseudo noise generator is output to the call receiverwith its level unchanged.


Find Patent Forward Citations

Mori, Ukyou. (2011). Cellular phone, and codec circuit and receiving call sound volume automatic adjustment method for use in cellular phone (U.S. Patent No. 7933548). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7933548

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