US3680128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Receiver with input phase control between antenna and chassis
Assignee: VOLKERS RESEARCH Inc
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Filing: 1970-10-20
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Granted: 1972-07-25
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Expires: 1990-10-20
Abstract
Abstract A receiver system including a differential input of which one end is connected to the antenna and the other end is grounded to the receiver chassis and a phase control device for adjusting the phase relationship between the antenna signal and the parasitic signal extracted from space by the receiver chassis.
Inventors
- 👤 Edward N Wille
- 👤 Walter K Volkers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:11
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/52; H01Q1/528; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/18
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
A receiver system comprising a power cord; a differential input device having a pair of input terminals said power cord being connected to one of said input terminals to serve as a monopole antenna structure; a parasitic antenna structure including the receiver chassis connected to the other of said input terminals, the signals from said parasitic antenna structure having a random phase relationship with the signals from said power cord antenna structure; and an adjustable phase control device connected between one of said antenna structures and its associated input terminal for adjusting the phase of the signal from said antenna structure to bring about an additive phase relationship with the signal from the other of said structures.
Claim 2
Dependent Claim
117 words
A receiver system comprising a power cord; a differential input device having a pair of input terminals said power cord being connected to one of said input terminals to serve as a monopole antenna structure; a parasitic antenna structure including the receiver chassis connected to the other of said input terminals, the signals from said parasitic antenna structure having a random phase relationship with the signals from said power cord antenna structure; and an adjustable phase control device connected between one of said antenna structures and its associated input terminal for adjusting the phase of the signal from said antenna structure to bring about an additive phase relationship with the signal from the other of said structures.
Claim 3
Dependent Claim
25 words
The receiver system of claim 1, wherein said adjustable phase control device is connected between said power cord antenna structure and its associated input terminal.
Claim 4
Dependent Claim
16 words
The receiver system of claim 2, wherein said adjustable phase control device comprises a variable inductor.
Claim 5
Dependent Claim
16 words
The receiver system of claim 2, wherein said adjustable phase control device comprises a variable capacitor.
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |