Electronic system for automatically tuning to a selected...

Details Electronic system for automatically tuning to a selected... Electronic system for automatically tuning to a selected...

H - Electricity

03

L

365/5

H03L 7/16 (2006.01) H03J 5/00 (2006.01) H03J 5/02 (2006.01) H03J 7/06 (2006.01)

Patent

CA 1041237

ELECTRONIC SYSTEM FOR AUTOMATICALLY TUNING TO A SELECTED TELEVISION CHANNEL ABSTRACT An all electronic tuning system is described for establishing a frequency of a local oscillator in a television receiver. When a channel selection is made, a number representing the desired channel is entered in a memory circuit. A first plurality of frequencies is generated in response to a channel selection, and a VCO employed as a local oscillator is caused to increase in frequency. When the VCO frequency differs from the first plurality of frequencies by a predetermined amount, a second plurality of frequencies is generated. Each frequency generated in said second plurality of frequencies is compared with said VCO frequency. When a predetermined difference exists between said VCO frequency and said second plurality of fre- quencies, a count is recorded. When the recorded count is equivalent to the number obtained in the memory circuit, the VCO tuning is inhi- bited and the VCO frequency is stabilized until a subsequent channel selection is made.

228478

Affiliated with

Also associated with

Rating

Electronic system for automatically tuning to a selected... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic system for automatically tuning to a selected..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic system for automatically tuning to a selected... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-583762