Paging apparatus having a battery saving function

Details Paging apparatus having a battery saving function Paging apparatus having a battery saving function

1992-01-16

1993-12-28

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

455343, 34082547, H04B 116, H04Q 302

Patent

active

052748430

ABSTRACT:
A paging apparatus having a battery saving function comprises a power supply to a radio circuit and a power supply control circuit. Power is turned on periodically in synchronization with the detection of synchronization signals and is turned off responsive to the detection of a predetermined sequence. The power supply to the radio circuit remains turned off without being turned on periodically for a predetermined time period in response to the detection of a specific code addressed to the paging apparatus.

REFERENCES:
patent: 3973242 (1976-08-01), Field et al.
patent: 4334319 (1982-06-01), Gurry
patent: 4353065 (1982-10-01), Mori
patent: 4449248 (1984-05-01), Leslie et al.
patent: 4479261 (1984-10-01), Oda et al.
patent: 4506386 (1985-03-01), Ichikawa et al.
patent: 4639726 (1987-01-01), Ichikawa et al.
patent: 4668949 (1987-05-01), Akahori et al.
patent: 4679244 (1987-07-01), Kawasaki et al.
patent: 4691382 (1987-09-01), Nakajima
patent: 4839641 (1989-06-01), Mori et al.

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