Personal radio paging receiver having sync signal controlled DC/

Details Personal radio paging receiver having sync signal controlled DC/ Personal radio paging receiver having sync signal controlled DC/

1993-07-23

1995-05-30

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

320 6, 455343, 3408252, H02J 700

Patent

active

054205760

ABSTRACT:
A personal radio paging receiver includes a radio section, a control section, a DC/DC converter, and a secondary battery. The radio section receives/demodulates an external radio signal and outputs a POCSAG signal. The control section divides the POCSAG signal into a first sync signal portion and a second batch signal portion, and outputs a control signal during a period of the first portion. The DC/DC converter operates for only a period during which the control signal is received. The secondary battery supplies power to the control section in synchronism with the second portion. The DC/DC converter is supplied to charge the second battery.

REFERENCES:
patent: 4085358 (1978-04-01), Holcomb
patent: 4518961 (1985-05-01), Davis et al.
patent: 4952927 (1990-08-01), De Luca et al.
patent: 5193211 (1993-03-01), Nobusawa
patent: 5274369 (1993-12-01), Tsunoda et al.

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