Local oscillation circuit for tuner having reduced inter-channel

Details Local oscillation circuit for tuner having reduced inter-channel Local oscillation circuit for tuner having reduced inter-channel

1975-01-15

1976-05-25

Griffin, Robert L.

Telegraphy

Systems

Printing

178 58AF, 331 36C, 334 16, H03B 304, H04B 116

Patent

active

039597288

ABSTRACT:
A local oscillation circuit for a tuner having a reduced inter-channel deviation in AFC sensitivity. The local oscillation circuit comprises a resonance circuit capable of varying a tuning frequency by means of a variable capacitive element additionally provided with a variable capacitive diode which is applied with a control voltage in dependence upon variation in the frequency detected from the output signal of the tuner, thereby to effect an automatic frequency control. A single variable capacitive diode is coupled to the variable capacitive element of the resonance circuit in a parallel and a series connections.

REFERENCES:
patent: 2811647 (1957-10-01), Nilssen
patent: 3219944 (1965-11-01), Kauszetal
patent: 3353126 (1967-11-01), Schucht
patent: 3679990 (1972-07-01), Hiday et al.
patent: 3784917 (1974-01-01), Kenyon
patent: 3825858 (1974-07-01), Amemiya et al.

Affiliated with

Also associated with

Rating

Local oscillation circuit for tuner having reduced inter-channel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Local oscillation circuit for tuner having reduced inter-channel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Local oscillation circuit for tuner having reduced inter-channel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-908771