US4524392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cine film-video scanner system
Assignee: Robert Bosch GmbH
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Filing: 1984-05-16
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Granted: 1985-06-18
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Expires: 2004-05-16
Abstract
Abstract To suppress display of film splices, defects in the film, fade, dissolve, or torn perforation openings upon scanning a film for video reproduction, splices and defects are recognized, and transmission of the frames which include these splices and defects to a memory connected to a film scanner is inhibited, the memory being repetitively read-out to obtain sequential output signals in accordance with the television standard of previously properly scanned frames. Splices and the like can be recognized by an automatic recognition sensor (19), for example sensing optical density, a capacitative sensor or the like; and/or defects can be recognized visually by an operator, and the respective defective or spliced frames entered in a film splice frame memory (23), which, subsequently, inhibits transmission of the respectively spliced or defective frames to the memory (12) receiving the scanned video signals. Since frequently splices occur upon scene change, an automatic scene change recognition network (27) may be used to recognize splices, and to inhibit recording in the memory of frames including the scene change, and hence the splices.
Inventors
- 👤 Dieter Poetsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:43
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/222; H04N5/253
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
162 words
Cine film-video scanner system having means (16) for transporting a cine film (1); a video scanner (4, 6-9, 11) scanning the film and developing electrical signals representative of the scene on the film; a memory (12) stroing said signals; and means (14, 18) for controlling read-out of the memory in accordance with a television standard to derive an output signal (13), and comprising film splice or damage recognition means (19) located in advance--with respect to the direction of movement of the film--of the video scanner and deriving a "damage" signal; and means (17) coupled to the film splice or damage recognition means and responsive to said "damage" signal for inhibiting entry into the memory (12) of signals from the video scanner upon sensing occurence of splices or damaged film areas for at least one frame of film, said memory being controlled to repeat read-out of previously stored signals representative of a previous frame of the film and to provide said output signals.
Claim 2
Dependent Claim
162 words
Cine film-video scanner system having means (16) for transporting a cine film (1); a video scanner (4, 6-9, 11) scanning the film and developing electrical signals representative of the scene on the film; a memory (12) stroing said signals; and means (14, 18) for controlling read-out of the memory in accordance with a television standard to derive an output signal (13), and comprising film splice or damage recognition means (19) located in advance--with respect to the direction of movement of the film--of the video scanner and deriving a "damage" signal; and means (17) coupled to the film splice or damage recognition means and responsive to said "damage" signal for inhibiting entry into the memory (12) of signals from the video scanner upon sensing occurence of splices or damaged film areas for at least one frame of film, said memory being controlled to repeat read-out of previously stored signals representative of a previous frame of the film and to provide said output signals.
Claim 3
Dependent Claim
166 words
Cine film-video scanner system having means (16) for transporting a cine film (1); a video scanner (4, 6-9, 11) scanning the film and developing electrical signals representative of the scene on the film; a memory (12) storing said signals; and means (14, 18) for controlling read-out of the memory in accordance with a television standard to derive an output signal (13), and comprising data entry and storage means (23) for receiving information regarding the location on the film of splices or damaged areas, and storing data representative of said locations on the film; and means (17) coupled to said data entry and storage means for inhibiting entry into the memory (12) of signals from the video scanner upon occurence of splices or damaged film areas for at least one frame of film, under control of said data entry and storage means, said memory being controlled to repeat read-out of previously stored signals representative of a previous frame of the film and to provide said output signals.
Claim 4
Dependent Claim
166 words
Cine film-video scanner system having means (16) for transporting a cine film (1); a video scanner (4, 6-9, 11) scanning the film and developing electrical signals representative of the scene on the film; a memory (12) storing said signals; and means (14, 18) for controlling read-out of the memory in accordance with a television standard to derive an output signal (13), and comprising data entry and storage means (23) for receiving information regarding the location on the film of splices or damaged areas, and storing data representative of said locations on the film; and means (17) coupled to said data entry and storage means for inhibiting entry into the memory (12) of signals from the video scanner upon occurence of splices or damaged film areas for at least one frame of film, under control of said data entry and storage means, said memory being controlled to repeat read-out of previously stored signals representative of a previous frame of the film and to provide said output signals.
Claim 5
Dependent Claim
46 words
System according to claim 2, wherein said memory (12) storing the signals derived from the video scanner retains said signals for repetitive read-out at least until signals representative of a scanned film frame subsequent to those stored in the memory are being transmitted to the memory.
Claim 6
Dependent Claim
32 words
System according to claim 2, wherein said data entry means includes manually operable inputs (24) recording the location of splices or damaged areas with reference to a characteristic position of the film.
Claim 7
Dependent Claim
13 words
System according to claim 4, wherein said characteristic position comprises a frame number.
Claim 8
Dependent Claim
28 words
System according to claim 2, wherein said data entry means comprises a scene change recognition means (27) providing an output signal upon recognition of a change of scene.
Claim 9
Dependent Claim
46 words
System according to claim 1, wherein said memory (12) storing the signals derived from the video scanner retains said signals for repetitive read-out at least until signals representative of a scanned film frame sugsequent to those stored in the memory are being transmitted to the memory.
References Cited (Backward Citations)
USRE31239E
Cited
USRE31239F1
Cited
US4081843A
Cited
US4013828A
Cited
US4149191A
Cited
US4167754A
Cited
US4237488A
Cited
JPS5566185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-17 | 1988-12-17 | 1989-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-17 | 1992-12-17 | 1993-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-17 | 1996-12-17 | 1997-06-18 | $7700.00 | Window Closed / Lapsed |