Portable telephone
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 25, 2002
Grant Date -
N/A
app pub date -
Jul 28, 1999
filing date -
Aug 7, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A portable telephone comprising an external antenna connector portion 7 for connecting it to an external antenna 2 can detect hook conditions by providing a detecting terminal 73 utilizing a shield portion 72 of the external antenna connector portion 7. In an on-hook condition where the portable telephone is mounted on an on-vehicle adapter 1, corresponding shield portions 72, 73 and 32 of the external antenna connector portions 7 and 3 provided on both the portable telephone and the on-vehicle adapter come into contact with each other. On the other hand, in an off-hook condition where the portable telephone is disengaged from the on-vehicle adapter or the on-vehicle holder, the corresponding shield portions are out of contact from each other. The hook conditions can be thus detected by detecting the change in the contact between the shield portions.
First Claim
Family
International Classification(s)
Cited Art Landscape
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