Selective radio paging receiver with battery saving operation

Details Selective radio paging receiver with battery saving operation Selective radio paging receiver with battery saving operation

1995-04-13

1997-07-15

Urban, Edward F.

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

455 383, 455258, H04B 110

Patent

active

056493142

ABSTRACT:
In a selective radio paging receiver, power supply for a local oscillator portion which has the longest period to take up to normal operation from on-set of power supply is performed with an elevated voltage higher than the battery voltage in the normal operation to shorten the take-up period. Subsequently, the battery voltage is supplied to the local oscillator portion together with the radio reception portion, wave shaper circuit and so forth. Therefore, power supply for the radio reception portion and the wave shaper circuit can be delayed to shorten the overall power supply period to improve battery saving effect.

REFERENCES:
patent: 4328571 (1982-05-01), Noble
patent: 4384361 (1983-05-01), Masaki
patent: 4422178 (1983-12-01), Mori
patent: 4479261 (1984-10-01), Oda et al.
patent: 4506386 (1985-03-01), Ichikawa et al.
patent: 5193212 (1993-03-01), Son
patent: 5208558 (1993-05-01), Shigehara et al.

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