Patent US4069459A successfully refreshed from Google Patents.
US4069459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feedback capacitor divider
Assignee: Raytheon Co
•
Filing: 1976-08-23
•
Granted: 1978-01-17
•
Expires: 1996-08-23
Abstract
Abstract An amplifier circuit, comprising a capacitive-resistive network electrically connected between the input and output of the amplifier wherein the network provides equivalent capacitance between the input and output thereby providing frequency response compensation.
Inventors
- 👤 J. Spencer Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:39
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/08; H03F1/083
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
105 words
A compensation network for reducing peaks in the output level versus frequency performance characteristics of an amplifier, comprising the combination: a first resistor one end of which is connected to the output of the amplifier; a second resistor one end of which is joined to the other end of the first resistor and the other end of said second resistor is at ground potential; and capacitively reactive means, connected between the input of the amplifier and the joined ends of the first and second resistors, for providing a reactance of at least ten times the ohmic value of the first and second resistors in parallel.
Claim 2
Dependent Claim
105 words
A compensation network for reducing peaks in the output level versus frequency performance characteristics of an amplifier, comprising the combination: a first resistor one end of which is connected to the output of the amplifier; a second resistor one end of which is joined to the other end of the first resistor and the other end of said second resistor is at ground potential; and capacitively reactive means, connected between the input of the amplifier and the joined ends of the first and second resistors, for providing a reactance of at least ten times the ohmic value of the first and second resistors in parallel.
Claim 3
Dependent Claim
20 words
The invention as stated in claim 1, including a third resistor connected between the input and output of the amplifier.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-16 | 1981-07-18 | 1982-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-16 | 1985-07-18 | 1986-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-16 | 1989-07-18 | 1990-01-17 | $7700.00 | Window Closed / Lapsed |