Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1981-11-05
1984-11-20
Bookbinder, Marc E.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
324 77C, 455168, 455200, 455226, H04B 126, H04B 1700, H03L 718
Patent
active
044843569
ABSTRACT:
Apparatus for acquiring and processing incoming radio signals received from a plurality of stations, the frequencies of which are contained in a predetermined frequency band.
The received signals are mixed with a local oscillator frequency which is repeatedly scanning the input frequency band at a fast rate produced from a frequency synthesizer whose control input is modified step by step to cycle through a corresponding predetermined set of programming values. The sweep rate of the programming value of the frequency synthesizer is so high that the stabilization time for the frequency at its output is significant with respect to the dwell time of the control signal of each programming value.
The varying frequency signals at the output of the mixer are applied to the inputs of band pass filtering channels, to derive the frequency range of the incoming signals for frequency selective circuitry arranged to demodulate the received signals. The invention is useful to the processing messsages transmitted by beacons by a satellite receiver.
REFERENCES:
patent: 4238727 (1980-12-01), Madni
Geesen Michel
Ludwig Daniel P.
Mourant Jacques
Bookbinder Marc E.
Centre National d'Etudes Spatiales
Electronique Marcel Dassault
LandOfFree
Apparatus and method for acquiring and processing radio signals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for acquiring and processing radio signals , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for acquiring and processing radio signals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2194154