Hand held telephone set and audio processing method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 1, 2005
Grant Date -
Mar 28, 2002
app pub date -
Sep 20, 2001
filing date -
Sep 22, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A handheld telephone set used by connecting a dual-ear mount type or single-ear mount type earphone that automatically sets an optimal signal level of an ambient sound according to the earphone type used, provided with: a telephone set main body unit, a detection device for detecting which type of earphone is mounted to the telephone set main body unit, an amplifier for amplifying the ambient sound to be delivered to the earphone, and a control device for controlling a signal level of the ambient sound output from the amplifier according to an output of the detection device. When either of these earphones is mounted, the control device controls the signal level of the ambient sound output from the amplifier to be fed back according to an output of the detection device.
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Family
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