H - Electricity – 04 – L
Patent
H - Electricity
04
L
329/11, 325/80
H04L 7/04 (2006.01) H04L 7/027 (2006.01) H04L 27/22 (2006.01)
Patent
CA 1095594
ABSTRACT OF THE DISCLOSURE A device for extracting from a double binary phase-shift keying (PSK) signal the clock of the base band signal. In the device, the phase- shift keying signal input is doubled in frequency and frequency-mixed with the carrier wave regenerated from the input signal and frequency-doubled. The clock desired is obtainable from the mixer output through band-pass filter means. No use is made of any frequency divider that involves a phase ambiguity and the clock regenerated is utilizable immediately as it is.
278961
Noguchi Toshitake
Otani Susumu
Nippon Electric Co. Ltd.
Smart & Biggar
LandOfFree
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