Subcarrier regeneration circuit for color television receivers

Details Subcarrier regeneration circuit for color television receivers Subcarrier regeneration circuit for color television receivers

H - Electricity

04

N

350/68

H04N 9/12 (2006.01) H04N 9/455 (2006.01)

Patent

CA 1062362

Abstract of the Disclosure In a subcarrier regeneration circuit for color television receivers, a phase detector output is sampled by a signal sample-and-hold circuit and a bias sample- and-hold circuit to develop a voltage between the outputs of the two sample-and-hold circuits to control the frequency of a 3.58 MHz subcarrier generated by a voltage controlled oscillator. The oscillator output is phase shifted by 90° and applied to one input of the phase detector for comparison with a gated color burst. The signal sample-and-hold circuit samples the phase detector output during the interval of the color burst, while the bias sample-and-hold circuit samples the phase detector output during an interval which is substantially equal to the flyback interval minus the color burst interval. - 1 -

263474

Affiliated with

Also associated with

Rating

Subcarrier regeneration circuit for color television receivers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Subcarrier regeneration circuit for color television receivers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subcarrier regeneration circuit for color television receivers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-301199