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:
Jul. 10, 2007
Filed:
Sep. 04, 2001
David B. Cranfill, Sparta, NJ (US);
Kesavarajan Kaliyaperumal, Edison, NJ (US);
Arthur G. Herkert, Millington, NJ (US);
Ronald Crochiere, San Diego, CA (US);
David B. Cranfill, Sparta, NJ (US);
Kesavarajan Kaliyaperumal, Edison, NJ (US);
Arthur G. Herkert, Millington, NJ (US);
Ronald Crochiere, San Diego, CA (US);
Motorola Inc., Schaumburg, IL (US);
Abstract
A method for dynamically controlling audio signal gain in a communication device starts with determining a level of an input audio signal. The level is then mapped against a table of predetermined corresponding gain targets to determine an appropriate gain target for that level. The gain targets are then applied to the audio signal, which is then output. The invention is particularly suited to speakerphone operation in a communication device, wherein the gain targets provide compression, expansion or limiting so that distant speakers can be heard clearly.