Phase synchronizing arrangement for video synchronous detection

Details Phase synchronizing arrangement for video synchronous detection Phase synchronizing arrangement for video synchronous detection

1977-11-01

1979-03-27

Grimm, Siegfried H.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

325419, 329122, 331 4, 331 23, 358 25, 358195, H03B 304, H03D 318, H04N 950

Patent

active

041468430

ABSTRACT:
An RF-IF signal receiving circuit of a television receiver controls a tuner which receives an amplitude modulated RF signal and converts it to an IF signal and an IF signal carrier generator for demodulating the amplitude modulated signal from the IF signal by synchronous detection, using a phase synchronous loop. A sweep voltage generator of a voltage-controlled oscillator in the phase synchronous loop comprises an envelope detector which is DC-coupled to an output of an amplitude synchronous detector and a low pass filter in order to enhance the pull-in range of the phase synchronous loop.

REFERENCES:
patent: 2794910 (1957-06-01), Arends
patent: 3461388 (1969-08-01), Daley
patent: 3760094 (1973-09-01), Skerlos
Hamade, "Phase-Lock Television IF Amplifier-Video Detector," IEEE Transactions on Consumer Electronics, vol. CE-21, Nov. 1975, pp. 340-347.

Affiliated with

Also associated with

Rating

Phase synchronizing arrangement for video synchronous detection 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 synchronizing arrangement for video synchronous detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase synchronizing arrangement for video synchronous detection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1824385