US3238300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delay line
Assignee: Robert Bosch Fernsehanlagen GmbH
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Filing: 1964-10-01
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Granted: 1966-03-01
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Expires: 1984-10-01
Abstract
No abstract record available.
Inventors
- 👤 Bopp Achim
- 👤 Kranse Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:15
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/18; H04; H04N; H04N11/00; H04N11/06; H04N11/12; H04N11/14; H04N11/143; H04N5/00; H04N5/76; H04N5/91; H04N5/93; H04N5/95; H04N9/00; H04N9/79; H04N9/87; H04N9/89
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
METHOD FOR CONTROLLING THE DELAY OF A VIDEO SIGNAL, COMPRISING THE STEPS OF TRANSMITTING A VIDEO SIGNAL VIA A PLURALITY OF SWITCHING CIRCUITS EFFECTING DIFFERENT DELAYS; GENERATING A REFERENCE SIGNAL; PRODUCING AN ANALOGUE CONTROL SIGNAL DEPENDING UPON A PHASE DIFFERENCE BETWEEN SAID VIDEO SIGNAL AND SAID REFERENCE SIGNAL; DERIVING FROM SAID ANALOGUE CONTROL SIGNAL COMBINATIONS OF ASSOCIATED DIGITAL CONTROL SIGNALS; SWITCHING SAID SWITCHING CIRCUITS AND DECREASING THE PHASE DIFFERENCE BETWEEN SAID VIDEO SIGNAL AND SAID REFERENCE SIGNAL.
References Cited (Backward Citations)
US3202769A
Cited
US3071739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |