US3136848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vidicon with low impedance amplifier for extended high frequency response and improved signal to noise ratio
Assignee: Individual
•
Filing: 1960-07-13
•
Granted: 1964-06-09
•
Expires: 1980-07-13
Abstract
No abstract record available.
Inventors
- 👤 William H Woodworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:26
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A VIDICON AND AMPLIFIER CIRCUIT COMBINATION FOR PROVIDING EXTENDED FLAT FREQUENCY RESPONSE WITHOUT DETERIORATION OF SIGNAL-TO-NOISE RATIO, SAID COMBINATION COMPRISING: (A) A VIDICON CIRCUIT; (B) A TRANSISTOR AMPLIFIER CHARACTERIZED BY LOW INPUT IMPEDANCE OF VALUE NO GREATER THAN THE ORDER OF TWO HUNDRED OHMS; AND (C) CAPACITOR MEANS ESTABLISHING A SIGNAL CURRENT PATH BETWEEN SAID VIDICON CIRCUIT AND SAID TRANSISTOR AMPLIFIER, SAID CAPACITOR HAVING SUITABLY LARGE MICROFARAD VALUE TO PRESENT NEGLIGIBLE IMPEDANCE, RELATIVE TO SAID TRANSISTOR AMPLIFIER INPUT IMPEDANCE, AT SIGNAL FREQUENCIES AS GREAT AS THE ORDER OF FIFTY MEGACYCLES PER SECOND.
Claim 2
Dependent Claim
92 words
A VIDICON AND AMPLIFIER CIRCUIT COMBINATION FOR PROVIDING EXTENDED FLAT FREQUENCY RESPONSE WITHOUT DETERIORATION OF SIGNAL-TO-NOISE RATIO, SAID COMBINATION COMPRISING: (A) A VIDICON CIRCUIT; (B) A TRANSISTOR AMPLIFIER CHARACTERIZED BY LOW INPUT IMPEDANCE OF VALUE NO GREATER THAN THE ORDER OF TWO HUNDRED OHMS; AND (C) CAPACITOR MEANS ESTABLISHING A SIGNAL CURRENT PATH BETWEEN SAID VIDICON CIRCUIT AND SAID TRANSISTOR AMPLIFIER, SAID CAPACITOR HAVING SUITABLY LARGE MICROFARAD VALUE TO PRESENT NEGLIGIBLE IMPEDANCE, RELATIVE TO SAID TRANSISTOR AMPLIFIER INPUT IMPEDANCE, AT SIGNAL FREQUENCIES AS GREAT AS THE ORDER OF FIFTY MEGACYCLES PER SECOND.
References Cited (Backward Citations)
US2901556A
Cited
FR1127774A
Cited
US3025472A
Cited
US2863957A
Cited
US2889519A
Cited
US3040264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |