Patent US3263222A successfully refreshed from Google Patents.
US3263222A
Expired / Lapsed
US
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Signal processing means
Assignee: Ampex Corp
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Filing: 1961-07-10
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Granted: 1966-07-26
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Expires: 1981-07-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles H Coleman
- 👤 Richard W Palthe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:53
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/93; H04N5/95; G; G11; G11B; G11B5/00; G11B5/008; H04N5/78; H04N5/782
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A GATING CIRCUIT COMPRISING: MEANS FOR CHANGING A TIMING WAVEFORM SIGNAL OF A FIRST FREQUENCY HAVING TIMING INFORMTION TO A SERIES OF SHARP UNIPOLAR PULSES, SAID UNIPOLAR PULSES HAVING SAID TIMING INFORMATION; MEANS FOR APPLYING SAID UNIPOLAR PULSES TO AN "AND" GATE; MEANS FOR APPLYING A SYNCHRONIZING PULSE SIGNAL OF A SECOND FREQUENCY LOWER THAN THE FIRST FREQUENCY AND HAVING A PULSE DURATION THAT ENCOMPASSES A NUMBER OF SAID UNIPOLAR PULSES TO SAID "AND" GATE, WHEREBY THE COINCIDENCE OF SAID APPLIED SYNCHRONIZING AND UNIPOLAR PULSE SIGNALS OPENS THE GATE; AND MEANS FOR DEVELOPING A SYNCHRONIZING SIGNAL OF PREDETERMINED PULSE DURATION HAVING SAID TIMING INFORMATION AND OF THE SAME FREQUENCY AS SAID APPLIED SYNCHRONIZING PULSE SIGNAL IN RESPONSE TO THE OUTPUT FROM SAID GATE WHEREBY SAID DEVELOPED SYNCHRONIZING PULSE SIGNAL HAVING SUCH TIMING INFORMATION MAY BE EMPLOYED FOR SYNCHRONIZATION.
Claim 2
Dependent Claim
138 words
A GATING CIRCUIT COMPRISING: MEANS FOR CHANGING A TIMING WAVEFORM SIGNAL OF A FIRST FREQUENCY HAVING TIMING INFORMTION TO A SERIES OF SHARP UNIPOLAR PULSES, SAID UNIPOLAR PULSES HAVING SAID TIMING INFORMATION; MEANS FOR APPLYING SAID UNIPOLAR PULSES TO AN "AND" GATE; MEANS FOR APPLYING A SYNCHRONIZING PULSE SIGNAL OF A SECOND FREQUENCY LOWER THAN THE FIRST FREQUENCY AND HAVING A PULSE DURATION THAT ENCOMPASSES A NUMBER OF SAID UNIPOLAR PULSES TO SAID "AND" GATE, WHEREBY THE COINCIDENCE OF SAID APPLIED SYNCHRONIZING AND UNIPOLAR PULSE SIGNALS OPENS THE GATE; AND MEANS FOR DEVELOPING A SYNCHRONIZING SIGNAL OF PREDETERMINED PULSE DURATION HAVING SAID TIMING INFORMATION AND OF THE SAME FREQUENCY AS SAID APPLIED SYNCHRONIZING PULSE SIGNAL IN RESPONSE TO THE OUTPUT FROM SAID GATE WHEREBY SAID DEVELOPED SYNCHRONIZING PULSE SIGNAL HAVING SUCH TIMING INFORMATION MAY BE EMPLOYED FOR SYNCHRONIZATION.
References Cited (Backward Citations)
US2614218A
Cited
US2668283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |