Pulse or digital communications – Repeaters – Testing
Patent
1988-09-26
1989-12-19
Cangialosi, Salvatore
Pulse or digital communications
Repeaters
Testing
H04K 102
Patent
active
048887870
ABSTRACT:
Receiver apparatus is provided for processing frequency hopped signals produced by frequency hopping or hybrid spread spectrum communication systems. A received frequency stepped carrier input signal is applied to dispersive delay lines connected in parallel branches and squaring circuits square the outputs of the dispersive delay lines. A comparator compares the outputs of the squaring circuits and produces an output related to the difference between the these outputs while an integrator integrates, over time, the comparator output and produces a corresponding output voltage signal. A voltage controlled oscillator connected to the output of the integrator produces an output signal whose frequency is related to the output voltage of the integrator. This signal is representative of the instantaneous frequency of the carrier input and can thus be used to demodulate the received signal.
REFERENCES:
patent: 4287475 (1981-09-01), Eaton et al.
patent: 4288750 (1981-09-01), Newton et al.
patent: 4454604 (1984-06-01), Myers
patent: 4479227 (1984-10-01), Bjornholt
patent: 4656642 (1987-04-01), Apostolos et al.
patent: 4672629 (1987-06-01), Beir
patent: 4761795 (1988-08-01), Beir
LandOfFree
Receiver apparatus for spread spectrum communication systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Receiver apparatus for spread spectrum communication systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Receiver apparatus for spread spectrum communication systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1908254