发明名称 |
High frequency battery saver for a radio receiver |
摘要 |
A radio receiver receives information on a radio carrier and switches portions of the receiver (12, 14, 18) OFF and ON at a rate greater than the bandwidth of the information, thereby reducing the power consumed by the radio receiver. A signal quality detector (42) determines the amount of distortion introduced by the switching and controls a duty cycle modulator (44) in order to maximize the OFF time while maintaining adequate signal quality. If receiving a data transmission, a synchronizer (46) may be used to synchronize the switching to the bit timing. A transmission gate (24) and capacitor (26) holds the input of filter (32) constant while portions of the receiver are OFF or generating transients due to being switched ON. |
申请公布号 |
US5448756(A) |
申请公布日期 |
1995.09.05 |
申请号 |
US19920908672 |
申请日期 |
1992.07.02 |
申请人 |
MOTOROLA, INC. |
发明人 |
DELUCA, MICHAEL J.;NGUYEN, TUAN K. |
分类号 |
H04B1/16;(IPC1-7):H04B1/16 |
主分类号 |
H04B1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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