Electricity: power supply or regulation systems – Remote sensing
Patent
1982-03-19
1983-06-28
Shoop, William M.
Electricity: power supply or regulation systems
Remote sensing
323354, 377 45, H02J 312
Patent
active
043908349
ABSTRACT:
A digital control type volume control circuit is disclosed herein which includes a multivibrator, an UP key, a DOWN key, a pair of binary UP/DOWN counters, a 4-to-16 line decoder, an encoder and an attenuator. The multivibrator is connected to the UP and DOWN keys to furnish pulses to the counter via an actuated one of the UP and DOWN keys. The counter counts the number of the pulses via the UP and DOWN key, with the counter being indicative of the length of actuation of the UP or DOWN key. The encoder responsive to the count of the counter output count provides an output for the attenuator having a plurality of resistors of different resistances for determination as to the amount of attenuation.
REFERENCES:
patent: 3177350 (1965-04-01), Abbott et al.
patent: 3961281 (1976-06-01), Woolling et al.
patent: 4238724 (1980-12-01), Klaus et al.
Sharp Kabushiki Kaisha
Shoop William M.
LandOfFree
Digital volume control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital volume control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital volume control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-936038