US 7,469,051 B2
	Method and apparatus for maintaining audio level preferences in a communication device
Darren T. Sapashe, Delray Beach, Fla. (US); and Chanhlong C. Lam, Coral Springs, Fla. (US)
Assigned to Motorola, Inc., Schaumburg, Ill. (US)
Filed on Sep. 11, 2003, as Appl. No. 10/660,213.
Prior Publication US 2005/0059369 A1, Mar. 17, 2005
Int. Cl. H03G 3/00 (2006.01); H03G 3/20 (2006.01); H02B 1/00 (2006.01); H04M 1/00 (2006.01); H04B 1/16 (2006.01); H04B 1/18 (2006.01); H04B 1/06 (2006.01)

U.S. Cl. 381—104  [381/107; 381/123; 381/57; 381/58; 381/109; 379/392.01; 379/420.01; 379/422; 379/420.03; 455/200.1; 455/177.1; 455/355]

4 Claims

1. A method for controlling volume in a two-way communication device, comprising: detecting a change in manual volume setting; measuring current background audio level; determining a relationship between the current background audio level and the volume setting; establishing the relationship as a desired volume level to be maintained; sensing a subsequent change in the manual volume setting; monitoring subsequent background audio level by engaging a microphone of the two-way radio only when the subsequent change in the manual volume setting is detected; comparing the current background level to the subsequent background level; determining whether a change in background level occurred; and automatically adjusting volume of a speaker of the two-way radio based on the relationship.