US3605031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide-band low-distortion alternating current amplifier
Assignee: Blonder Tongue Laboratories Inc
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Filing: 1969-09-04
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Granted: 1971-09-14
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Expires: 1989-09-04
Abstract
Abstract This disclosure deals with a wide-band low-distortion alternating current amplifier employing input and output hybrid couplers interconnected by two paths, one containing a grounded collector transistor circuit and the other a grounded base transistor circuit, or similar functioning circuits as employed with other types of electron relay devices.
Inventors
- 👤 Ben H Tongue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:16
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/42; H03F1/48; H03F2200/00; H03F2200/198; H03F2200/39; H03F2200/69; H03F2200/72
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
89 words
A wide-band low-distortion alternating current amplifier system having, in combination, input and output hybrid couplers provided with respective input and output ports and each having a pair of isolated ports, each of said couplers being of the inphase or 180* out-of-phase type, grounded collector transistor means coupling one of the input coupler isolated ports to one of the output coupler isolated ports, and grounded base transistor means coupling the other of the pair of input isolated coupler ports to the other of the pair of output isolated coupler ports.
Claim 2
Dependent Claim
89 words
A wide-band low-distortion alternating current amplifier system having, in combination, input and output hybrid couplers provided with respective input and output ports and each having a pair of isolated ports, each of said couplers being of the inphase or 180* out-of-phase type, grounded collector transistor means coupling one of the input coupler isolated ports to one of the output coupler isolated ports, and grounded base transistor means coupling the other of the pair of input isolated coupler ports to the other of the pair of output isolated coupler ports.
Claim 3
Dependent Claim
63 words
An amplifier system as claimed in claim I and in which said couplers comprise lumped constant hybrid circuits each having a forth port terminated in resistance substantially four times the respective input and output impedances of the input and output couplers and substantially twice the square root of the product of the input impedances of the grounded collector and grounded base transistor means.
Claim 4
Dependent Claim
42 words
An amplifier system as claimed in claim 2 and in which impedance elements are connected in the input of one of the transistor means and the output of the other transistor means to adjust the said input impedances to produce said product.
Claim 5
Dependent Claim
134 words
A wide-band low-distortion alternating current amplifier system having in combination, input and output hybrid couplers provided with respective input and output ports and each having a pair of isolated ports, each of said couplers being of the in-phase or 180* out-of-phase type, a pair of similar amplifying devices including a pair of principal electrodes and a control electrode, one of said devices having its control electrode grounded and its principal electrodes coupling one of the input coupler isolated ports to one of the output coupler isolated ports, and the other of the pair of devices having one of its principal electrodes grounded and having its control electrode and the other principal electrode coupling the other of the pair of input coupler isolated ports to the other of the pair of output coupler isolated ports.
Claim 6
Dependent Claim
134 words
A wide-band low-distortion alternating current amplifier system having in combination, input and output hybrid couplers provided with respective input and output ports and each having a pair of isolated ports, each of said couplers being of the in-phase or 180* out-of-phase type, a pair of similar amplifying devices including a pair of principal electrodes and a control electrode, one of said devices having its control electrode grounded and its principal electrodes coupling one of the input coupler isolated ports to one of the output coupler isolated ports, and the other of the pair of devices having one of its principal electrodes grounded and having its control electrode and the other principal electrode coupling the other of the pair of input coupler isolated ports to the other of the pair of output coupler isolated ports.
Claim 7
Dependent Claim
32 words
5. An amplifier system as claimed in claim 1 and in which said transistor means are driven in push-pull from the input coupler, providing even order harmonic cancellation at the output coupler.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |