Patent ID: 6154639
Filing Date: 2000-11-28
Classification: H04B,H04M

Abstract:
A handsfree unit used in a dual-mode radio communication apparatus for making communication with a base station by selectively employing any one of analog and digital communication modes, for allowing a loud communication to be made,said handsfree unit comprising:voice switch means for controlling signal intensity, so that signal intensity of a transmission signal is greater than signal intensity of a reception signal at the time of transmission, and signal intensity of a reception signal is greater than signal intensity of a transmission signal at the time of reception; andcontrol amount switching means for increasing the control amount of the signal intensity controlled by said voice switch means when the communication mode of said dual-mode radio communication apparatus is the digital mode, more than the control amount of the signal intensity when the communication mode of said dual-mode radio communication apparatus is the analog mode.