Watch type paging receiver

Details Watch type paging receiver Watch type paging receiver

1990-09-04

1991-04-09

Safourek, Benedict V.

Telecommunications

Receiver or analog modulated signal frequency converter

Combined with diverse art device

455272, 455351, 3403111, 343718, 343720, H04B 106, H04B 118

Patent

active

050071050

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.

REFERENCES:
patent: 3032651 (1962-05-01), Gisiger-Stahli et al.
patent: 4095217 (1978-06-01), Tani et al.
patent: 4225965 (1980-09-01), Baugh
patent: 4261049 (1981-04-01), Komiyama et al.
patent: 4586827 (1986-05-01), Hirsch et al.
patent: 4633519 (1986-12-01), Gotoh et al.
patent: 4713808 (1987-12-01), Gaskill et al.
patent: 4786902 (1988-11-01), Davis et al.

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