Phase detector

Details Phase detector Phase detector

1975-04-17

1977-02-01

Kominski, John

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

307295, 307232, H03K 520

Patent

active

040064239

ABSTRACT:
A phase detector comprising a first differential amplifier for receiving a first input signal and having an output circuit which produces an output that is a direct function of the first input signal. An actuable second differential amplifier receives a second input signal and includes an output circuit for producing an output signal which is proportional to the phase difference between the first and second input signals. The second differential amplifier is coupled to the first differential amplifier output circuit so as to be actuated by the output produced by the output circuit and to thereby produce an output signal representing the phase difference between the second input signal and the output supplied by the first differential amplifier output circuit. The output produced by the first differential amplifier output circuit is supplied as a differential amplifier current to the second differential amplifier. Hence, in one embodiment, the second differential amplifier includes common-connected stages connected in differential configuration, the common connection being coupled to the first differential amplifier output circuit.

REFERENCES:
patent: 3651418 (1972-03-01), Wittmann
patent: 3854098 (1974-12-01), Takahashi
patent: 3857110 (1974-12-01), Grebene
patent: 3863080 (1975-01-01), Steckler
patent: 3869679 (1975-03-01), Grebene

Affiliated with

Also associated with

Rating

Phase detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phase detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1093641