发明名称 |
BATTERY ECONOMISING IN A COMMUNICATIONS SYSTEM |
摘要 |
In communications systems such as telemetry systems in which a receiver (34) is periodically energised to receive transmissions from a central station, the receiver includes power control means (12) for controlling the energisation of the receiver, a circuit (48) for detecting the presence of a carrier, which circuit (48) causes the power control means to de-energise the receiver (34) in the event of carrier not being detected, and a signal quality measuring stage (50) for determining if the demodulated signal is decodable, the stage (50) causing the power control means to de-energise the receiver (34) in the event of the signal quality not being acceptable. |
申请公布号 |
WO0118980(A1) |
申请公布日期 |
2001.03.15 |
申请号 |
WO2000EP07969 |
申请日期 |
2000.08.15 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
MARSHALL, PAUL, R.;ROBERTS, DAVID, K.;BURBIDGE, RICHARD, C. |
分类号 |
H04B1/16;H04B7/26 |
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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