Watch type paging receiver
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 9, 1991
Issued Date -
N/A
app pub date -
Sep 4, 1990
filing date -
Aug 14, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A watch type paging receiver which may be put on person's wrist by a belt includes a body on which a display device such as a liquid crystal display device is provided. An inverted F-shaped main antenna is implemented by a part of the display device. A loop antenna is provided in addition to the main antenna and implemented by the belt. The main and loop antennas are selectively rendered active depending upon the level of a received signal. Even when the length of the belt is changed to suit person's wrist, accurate matching is established on the basis of the resulting length of the belt. A primary battery in the form of a solar battery and a secondary battery are associated with the receiver body and the belt, respectively. A vibration source which is adapted for tactual alerting forms a part of the belt.
First Claim
Family
International Classification(s)
Cited Art Landscape
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