Paging receiver and radio frequency channel searching method for

Details Paging receiver and radio frequency channel searching method for Paging receiver and radio frequency channel searching method for

1993-10-14

1996-07-02

Horabik, Michael

Communications: electrical

Continuously variable indicating

With meter reading

34082544, 455 383, 4551613, 4551641, 455343, H04B 116

Patent

active

055326838

ABSTRACT:
A paging receiver is provided for use with a plurality of paging service systems transmitting different radio frequency channels. The paging receiver searches for every reception channel and determines object reception channels by referring to system information identifying each service system, and contains an electric field detection section for detecting the electric field strength of radio frequency channels and a reception channel control section for controlling searching for radio frequency channels and determining object reception channel. The reception channel control section immediately switches the radio frequency channel when the received electric field strength is not greater than a prescribed value and when the system information does not exhibit coincidence, but when the system information exhibits coincidence, determines that the radio frequency channel being received is an object radio frequency channel and continues receiving of the paging information. Accordingly, the time required for searching all radio frequency channels remarkably decreases thereby preventing degradation of the battery.

REFERENCES:
patent: 4247947 (1981-01-01), Miyamoto
patent: 4802201 (1989-01-01), Yoshizawa et al.
patent: 5280642 (1994-01-01), Hirata et al.

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