US3260968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable delay network utilizing voltage-variable capacitors
Assignee: Ampex Corp
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Filing: 1962-05-14
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Granted: 1966-07-12
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Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 Paul E Drapkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:01
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/30; H03H7/32; H03H7/325; B; B29; B29D; B29D7/00; B29D7/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A VARIABLE DELAY NETWORK FOR VARIABLE DELAYING A SIGNAL HAVING A WIDE FREQUENCY BAND COMPRISING: INPUT TERMINALS; OUTPUT TERMINALS; A FIRST TRANSMISSION LINE NETWORK SECTION AND A SECOND TRANSMISSION LINE NETWORK SECTION CONNECTED IN PARALLEL BETWEEN SAID INPUT AND OUTPUT TERMINALS, EACH OF SAID NETWORK SECTIONS INCLUDING A PLURALITY OF INDUCTORS AND A PLURALITY OF VOLTAGE VARIABLE CAPACITOS, AND EACH OF SAID NETWORK SECTIONS BEING ARRANGED TO PROVIDE A DIFFERENT PHASE SHIFT TO THE DIFFERENT PORTIONS OF THE FREQUENCY BAND; AND MEANS CONNECTED TO BOTH OF SAID NETWORK SECTIONS FOR APPLYING A VARIABLE BIAS VOLTAGE TO SAID CAPACITORS TO VARY SIMULTANEOUSLY THE CAPACITANCE THEREOF, WHEREBY THE DELAY PRESENTED TO SAID SIGNAL BY BOTH SAID NETWORK SECTIONS IS VARIED.
Claim 2
Dependent Claim
118 words
A VARIABLE DELAY NETWORK FOR VARIABLE DELAYING A SIGNAL HAVING A WIDE FREQUENCY BAND COMPRISING: INPUT TERMINALS; OUTPUT TERMINALS; A FIRST TRANSMISSION LINE NETWORK SECTION AND A SECOND TRANSMISSION LINE NETWORK SECTION CONNECTED IN PARALLEL BETWEEN SAID INPUT AND OUTPUT TERMINALS, EACH OF SAID NETWORK SECTIONS INCLUDING A PLURALITY OF INDUCTORS AND A PLURALITY OF VOLTAGE VARIABLE CAPACITOS, AND EACH OF SAID NETWORK SECTIONS BEING ARRANGED TO PROVIDE A DIFFERENT PHASE SHIFT TO THE DIFFERENT PORTIONS OF THE FREQUENCY BAND; AND MEANS CONNECTED TO BOTH OF SAID NETWORK SECTIONS FOR APPLYING A VARIABLE BIAS VOLTAGE TO SAID CAPACITORS TO VARY SIMULTANEOUSLY THE CAPACITANCE THEREOF, WHEREBY THE DELAY PRESENTED TO SAID SIGNAL BY BOTH SAID NETWORK SECTIONS IS VARIED.
References Cited (Backward Citations)
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US2263376A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |