US3628183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Limiter-stabilized oscillator
Assignee: Unisys Corp
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Filing: 1970-04-07
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Granted: 1971-12-14
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Expires: 1990-04-07
Abstract
Abstract A high carrier-frequency semiconductor diode oscillator is frequency stabilized against variation in loading and amplitude modulation noise in its output is reduced by utilization of a limiter-diode of the PIN type in its output transmission line.
Inventors
- 👤 Harry F Strenglein
- 👤 Frank M Palka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:33
CPC Classifications
H; H04; H04J; H04J1/00; H04J1/02; H04J1/06; H03; H03G; H03G11/00; H03G11/02; H03L; H03L5/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
41 words
Apparatus as described in claim 1 wherein said semiconductor diode limiter means comprises a PIN semiconductor diode so characterized and so arranged as cooperatively to supply limiting action at a level lower than that characterizing self-saturated operation of said high-frequency oscillator.
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) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |