发明名称 Radio receiver with clock signal controlled to improve the signal to noise ratio
摘要 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.
申请公布号 US5142699(A) 申请公布日期 1992.08.25
申请号 US19910759040 申请日期 1991.09.05
申请人 NEC CORPORATION 发明人 SATO, TOSHIFUMI;IDE, MOTOKI
分类号 H04B1/16;H04W52/02;H04W88/02 主分类号 H04B1/16
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