Frequency following circuit

Details Frequency following circuit Frequency following circuit

1979-02-26

1981-07-28

Truhe, J. V.

Music

Instruments

179 1SA, 324 78J, 324 78F, 84454, 84DIG18, G10H 100, H04M 100, G01R 2302

Patent

active

042803870

ABSTRACT:
A plurality of a signal peak detection circuits connected in cascade for operation on a complex waveform input signal, for generating a reference signal having peaks occurring in time with the peaks of the fundamental frequency component of the input signal. The reference signal is processed for producing a voltage proportional to the period between successive signal peaks, which voltage is successively stored and monitored at select times for comparison of the relative magnitude changes in the voltage, for updating an output control voltage.

REFERENCES:
patent: 2901699 (1959-08-01), Motz et al.
patent: 3476863 (1969-11-01), Campbell
patent: 3488518 (1970-01-01), Taylor
patent: 3591699 (1971-07-01), Cutler
patent: 3603738 (1971-09-01), Focht
patent: 3704414 (1972-11-01), Herbst
patent: 3740476 (1973-06-01), Atal
patent: 3810067 (1974-05-01), Heidecker
patent: 3848586 (1974-11-01), Suzuki
patent: 3852535 (1974-12-01), Zurcher
patent: 3895553 (1975-07-01), Kawamoto
patent: 3911776 (1975-10-01), Beigel
patent: 4028985 (1977-06-01), Merritt
patent: 4044309 (1977-08-01), Smith
patent: 4070618 (1978-01-01), Thomas
patent: 4073209 (1978-02-01), Whittington et al.
patent: 4151775 (1979-05-01), Merriman
patent: 4160402 (1979-07-01), Schwartz
patent: 4195544 (1980-04-01), Kolke
Dobkin, "Op Amp Circuit Collection", in Linear Applications, vol. 1, (National Semiconductor), Feb. 1970, p. AN31-12.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-544994