Audio circuit with noise muting feature

Details Audio circuit with noise muting feature Audio circuit with noise muting feature

1973-10-04

1976-11-30

Moffitt, James W.

Dynamic magnetic information storage or retrieval

Recorder control of an external device

Slide or movie projectors

360 67, G03B 3100

Patent

active

039953157

ABSTRACT:
An audio-visual slide projector having audio circuitry that is formed of a muting circuit and a record-reproduce circuit for the recording and playback of magnetic recording strips on a slide frame. The muting circuit is connected to the drive motor powering the slide changing apparatus of the projector and is energized during each slide change cycle to mute the record-reproduce circuit of the projector, thus, preventing noise from being applied to the output of the audio circuit.

REFERENCES:
patent: 2633055 (1953-03-01), Badmaieff
patent: 3334194 (1967-04-01), Chang
patent: 3591730 (1971-06-01), Chang
patent: 3673345 (1972-06-01), Ban
patent: 3705272 (1972-12-01), Tsuji et al.
patent: 3712961 (1973-01-01), Nye et al.
patent: 3721774 (1973-03-01), Yonemoto et al.

Affiliated with

Also associated with

Rating

Audio circuit with noise muting feature does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1058466