Pulse or digital communications – Repeaters – Testing
Patent
1983-10-14
1985-12-17
Olms, Douglas W.
Pulse or digital communications
Repeaters
Testing
370 18, H04L 100
Patent
active
045596336
ABSTRACT:
A spread-spectrum communication system includes a transmitter for transmitting a spectrum-spread signal and a receiver for receiving the data signal. To establish synchronism between the signals transmitted and received, the receiver includes a first loop circuit for establishing synchronism in frequency and phase of a carrier for the spectrum-spread data signal, and a second loop circuit for detecting the synchronism of spectrum spreading code signal of a spectrum spread data signal after the carrier has been removed by said first loop circuit.
REFERENCES:
patent: 4112372 (1978-09-01), Holmes et al.
patent: 4122393 (1978-10-01), Gordy et al.
patent: 4149121 (1979-04-01), Gordy et al.
patent: 4279018 (1981-07-01), Carson
patent: 4475208 (1984-10-01), Ricketts
Kan Kazutoshi
Oizumi Junichi
Hitachi , Ltd.
Olms Douglas W.
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