Method and circuit for selecting tuning of a radio receiver

Details Method and circuit for selecting tuning of a radio receiver Method and circuit for selecting tuning of a radio receiver

H - Electricity

04

B

H04B 1/16 (2006.01) H03J 1/00 (2006.01) H04B 1/26 (2006.01) H04Q 7/32 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2112809

2112809 9323963 PCTABS00028 A circuit and method for selecting tuning of a radio receiver to a frequency channel of a set of frequency channels. The radio receiver scans selected control channels and measures the power levels of signals generated upon control channels. Only when the measured power levels (684) of the signals generated upon the respective ones of the control channels are in excess of a certain power level is a communication link attempted to be effectuated with a transmitter of such data signals (696). When a communication link cannot be effectuated, the radio receiver powers down (708) for a predetermined time period, then powers on again (710), and the power levels of signals transmitted upon the control channels are again measured (710). Effectuation of a communication link with a transmitter which transmits a signal upon one of the control channels is attempted if the measured power level on such control channel increases beyond a certain amount.

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