Radio receiver with clock signal controlled to improve the signa

Details Radio receiver with clock signal controlled to improve the signa Radio receiver with clock signal controlled to improve the signa

1991-09-05

1992-08-25

Kuntz, Curtis

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

34082544, H04B 116

Patent

active

051426994

ABSTRACT:
In a radio paging receiver comprising a receiving section (11), a decoder section (12), and a CPU (13) for distinguishing a specific one of a plurality of call signals and processing a specific message signal succeeding the specific call signal into a processed message signal, the receiving section is intermittently put into operation. The decoder section is put into operation in accordance with a first clock signal which is supplied from a first clock generator (16). A switching circuit (20) selectively connects the CPU with the first clock generator and a second clock generator (17). More particularly, the CPU is put into operation in accordance with a second clock signal which is supplied from the second generator when the receiving section does not operate. The frequency of the second clock signal is much higher than that of the first clock signal. Therefore, the CPU processes the specific message signal into the processed message signal at a rapid processing speed in accordance with the second clock signal when the receiving section is not put into operation.

REFERENCES:
patent: 4673892 (1987-06-01), Miyashita et al.
patent: 4743864 (1988-05-01), Nakagawa et al.
patent: 4802240 (1989-01-01), Yamaguchi et al.
patent: 4855731 (1989-08-01), Yoshizawa et al.
patent: 4860005 (1989-08-01), DeLuca et al.
patent: 4903335 (1990-02-01), Shimizu
patent: 4928086 (1990-05-01), Drapac et al.

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