Voltage controlled monolithic automatic gain control attenuator device
Abstract
Abstract A DC VOLTAGE CONTROLED TEMPERATURE COMPENSATED DIODE ATTENUATOR HAVING TWO DIODES CONNECTED IN SERIES AND OPERATED IN A RANGE IN WHICH THE DYNAMIC IMPEDANCE OF THE DIODES VARIES EXPONENTIALLY WITH RESPECT OT THE DC CONTROL VOLTAGE APPLIED ACROSS THEN. A VOLTAGE APPLICATION TRANSISTOR CONNECTED IN SERIES WITH THE DIODES AND THREE SEMICONDUCTOR COMPONENTS SERIALLY ARRANGED AND CONNECTED ACROSS THE DIODE ATTENUATOR CIRCUIT BY WAY OF THE VOLTAGE APPLICATION TRANSISTOR TO CAUSE THE EFFECTIVE IMPENDANCE IN THE ATTENUATOR CIRCUIT TO REMAIN CONSTANT REGARDLESS OF CHANGE IN TEMPERATURE BY VARYING THE DC VOLTAGE APPLIED TO THE VOLTAGE APPLICATION TRANSISTOR IN RESPONSE TO TEMPERATURE CHANGES AFFECTING THE ATENUATOR.
Inventors
- 👤 Frederick C Zielinski
- 👤 Glen Burnie
- 👤 William Jones Jr
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |