Oscillation circuit

Details Oscillation circuit Oscillation circuit

1989-09-14

1990-04-17

LaRoche, Eugene R.

Oscillators

Automatic frequency stabilization using a phase or frequency...

With reference oscillator or source

331 34, 331 23, 332127, H03L 700

Patent

active

049184075

ABSTRACT:
A first multivibrator 12 is provided as an oscillation circuit for FM modulating a luminance signal. In addition, a second multivibrator 14 is separately provided which has the same circuit configuration as that of the first multivibrator 12. An oscillation output signal of the second multivibratory 14 is compared in phase with an oscillation output signal of a fixed oscillation circuit 17 in a phase comparing circuit 16. After being smoothed in a smoothing circuit 18, an error output of the phase comparing circuit 16 is fed back to the second multivibrator 14 to control an oscillation frequency of this second multivibrator 14. An output of the smoothing circuit 18 is also applied to the first multivibrator 12 to control the oscillation frequency of the second multivibratory 12. Therefore, the first multivibrator 12 has its oscillation frequency set to a predetermined value in the same manner as the second multivibrator 14 does.

REFERENCES:
patent: 4376268 (1983-03-01), Moriya et al.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1055325