US3743771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television reproducer for a movie film
Assignee: Fujifilm Holdings Corp
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Filing: 1971-07-28
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Granted: 1973-07-03
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Expires: 1991-07-28
Abstract
Abstract A television reproducer for a movie film (cine film) which has a device for flashing in synchronism with a detected frame signal. The frame signal indicates the position of a frame of a continuously fed movie film. A vidicon device scans vertically a plurality of fields within a flash duration with a scan frequency of 60 fields per second of a standard television system. The scanning frequency is obtained from the frame signal. The reproducer also includes a circuit for varying the amplification degree of video signals in synchronization with the frame signal for preventing flickers. Thus, the film may be projected to the television without any special devices.
Inventors
- 👤 T Ohta
- 👤 M Ohnishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:53
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/36; H04N3/38
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
119 words
A television reproducer for a movie film comprising: a. frame signal generating means for generating a signal upon detection of a frame of said film; b. flashing means for illuminating a frame of said film once in response to the output of said frame signal generating means; c. vidicon means responsive to the light from said flashing means for vertically scanning a plurality of fields of a television system after each illumination of said frame by said flashing means, wherein said television system has a scanning frequency near 60 fields per second; and d. circuit means for varying the amplification of the video signal output of said vidicon in synchronization with said frame signal generating means to prevent flickers.
Claim 2
Dependent Claim
119 words
A television reproducer for a movie film comprising: a. frame signal generating means for generating a signal upon detection of a frame of said film; b. flashing means for illuminating a frame of said film once in response to the output of said frame signal generating means; c. vidicon means responsive to the light from said flashing means for vertically scanning a plurality of fields of a television system after each illumination of said frame by said flashing means, wherein said television system has a scanning frequency near 60 fields per second; and d. circuit means for varying the amplification of the video signal output of said vidicon in synchronization with said frame signal generating means to prevent flickers.
Claim 3
Dependent Claim
97 words
The television reproducer as set forth in claim 1 wherein said frame signal generating means comprises: a. a luminous element; b. a photoelectric converting means for detecting the output of said luminous element; and c. an oscillator means responsive to said photoelectric converting means for oscillating at a frequency proportional to the output of said photoelectric converting means; and wherein said flashing means comprises: d. a flash lamp; and e. power supply means responsive to said oscillator means for supplying power to said flash lamp, whereby said flash lamp flashes at the frequency of said oscillator means.
Claim 4
Dependent Claim
32 words
The television reproducer as set forth in claim 1 wherein said vidicon means has a storage effect such that one frame of said film corresponds to three fields of said television system.
Claim 5
Dependent Claim
31 words
The television reproducer as set forth in claim 3 wherein said circuit means comprises an amplifier having a gain characteristic which is opposite to the storage characteristic of said vidicon means.
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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |