Analog multiplier using radiation responsive impedance means in its feedback arrangement
United States Patent 3283135
Inventors:
Morton, Sklaroff
Publication Date:
11/01/1966
Assignee:
ROBERTSHAW CONTROLS CO
Other Classes:
330/103, 330/147, 250/214R, 330/59, 330/86, 327/358, 250/206, 250/215, 330/110, 330/69, 327/514
International Classes:
G06G7/163; G06G7/00
US Patent References:
| 3082381 | Automatic gain control circuit | | | |
| 3087120 | Automatic volume control circuit | | | |
| 3110813 | Solid state photosensitive control element | | | |
| 3159787 | R. m. s. meter using amplifier with controlled feedback | | | |
| 3167647 | Electrical analog computing circuit with square root extraction capability | | | |
| 3202905 | Remotely controlled attenuator devices | | | |
| 3211900 | Analog multiplier circuits using an electroluminescent element | | | |