Remote audio attenuator

Details Remote audio attenuator Remote audio attenuator

1975-01-24

1976-09-28

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307253, 307308, 328208, H03K 342

Patent

active

039834212

ABSTRACT:
A remote audio attenuator in which a volume control variable resistor of the attenuator regulates a volume control variable resistor of a distant audio system with complete isolation between the circuit of the two volume control resistors, and with rapid response between the two control units. The attenuator employs a lamp controlled by a differential operational amplifier, with the lamp set to equally illuminate slave photoresistors, one or more of which serve as the volume control units of the distant audio system, and one of which is connected to a resistance bridge to provide feedback to the differential operational amplifier, the output of which is also controlled by the remote control variable resistor which is also connected to the resistance bridge.

REFERENCES:
patent: 3072795 (1963-01-01), Badmaieff
patent: 3315153 (1967-04-01), Whatley
patent: 3436671 (1968-04-01), Fenton et al.
patent: 3596198 (1971-07-01), Niki
patent: 3732443 (1973-05-01), Lovrenich

Affiliated with

Also associated with

Rating

Remote audio attenuator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Remote audio attenuator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Remote audio attenuator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2082598