Circuit arrangement for tuning into one of a number of radioelec

Details Circuit arrangement for tuning into one of a number of radioelec Circuit arrangement for tuning into one of a number of radioelec

1980-06-30

1982-02-23

Bookbinder, Marc E.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455183, 455194, H04B 126

Patent

active

043172261

ABSTRACT:
A circuit arrangement for tuning into one of a number of radioelectric signals receivable on a signal receiver, comprising a controllable oscillator the frequency of which is determined by a control loop depending on a digital number N from a processing unit, in turn, dependent on coded input data. The loop comprises a frequency divider for obtaining a first signal from the controllable oscillator depending at least on the number N and a comparitor for comparing the first signal with a second frequency reference signal so as to obtain a third signal for required tuning. The circuit arrangement further prevents signals from being sent to the receiver loudspeaker for a preset length of time if the variation in the number N is over a preset threshold within a preset time interval.

REFERENCES:
patent: 4228542 (1980-10-01), Misawa et al.
patent: 4247952 (1981-01-01), Shibuya
Leonard Feldman, "Sherwood Model Micro/CPU 100 Stereo FM Tuner", in magazine AUDIO, vol. 61, No. 11, Nov. 1977, pp. 70, 72, 73, 78 & 79.

Affiliated with

Also associated with

Rating

Circuit arrangement for tuning into one of a number of radioelec does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit arrangement for tuning into one of a number of radioelec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit arrangement for tuning into one of a number of radioelec will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1777386