US3603665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber optics disk scanning systems
Assignee: CBS Broadcasting Inc
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Filing: 1968-11-26
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Granted: 1971-09-07
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Expires: 1988-11-26
Abstract
Abstract Apparatus for simultaneously scanning two related frames of color TV film includes a disk rotated about its axis at high speed. Narrow radial slits in the disk cooperate with two separate fiber optics channels each formed with an entrance and a narrow exit. A lamp lights the disk, and the disk slits and exits are relatively oriented so that a scanning spot emanates from each exit and executes a rectilinear scan, notwithstanding curvilinear motion of the disk slits as the disk is rotated. Moreover, the fiber optics channels are tapered if necessary so that the scanning lines are of disk length, whether or not the disk slits are all at the same radial location.
Inventors
- 👤 Peter C Goldmark
- 👤 John W Christenen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:58
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/11; G; G02; G02B; G02B26/00; G02B26/08; G02B26/10; G02B26/103; H04N5/00; H04N5/76; H04N5/84
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
193 words
In scanning apparatus for simultaneously scanning corresponding parts of two separate, related frames on a moving film, the combination comprising a scanning disk, means mounting said disk rotatably about an axis, aperture means formed in said disk and providing a plurality of areas on said disk in which radiation can pass through said disk, fiber optics means formed with a pair of segregated entrances and a pair of segregated exits, means mounting said fiber optics means adjacent to said disk, a radiation source, means mounting said radiation source in such a manner that said radiation source projects radiation through said aperture means at said spaced-apart areas as two of said areas respectively traverse said two entrances, said entrances being positioned with respect to each other in a manner which is a function of the separation between said spaced-apart areas on said disk and said exits being positioned with respect to each other in a manner which is a function of the separation between corresponding parts of said related frames, and means for moving said film and rotating said disk at respective velocities such that said related frames are simultaneously scanned line by line.
Claim 2
Dependent Claim
193 words
In scanning apparatus for simultaneously scanning corresponding parts of two separate, related frames on a moving film, the combination comprising a scanning disk, means mounting said disk rotatably about an axis, aperture means formed in said disk and providing a plurality of areas on said disk in which radiation can pass through said disk, fiber optics means formed with a pair of segregated entrances and a pair of segregated exits, means mounting said fiber optics means adjacent to said disk, a radiation source, means mounting said radiation source in such a manner that said radiation source projects radiation through said aperture means at said spaced-apart areas as two of said areas respectively traverse said two entrances, said entrances being positioned with respect to each other in a manner which is a function of the separation between said spaced-apart areas on said disk and said exits being positioned with respect to each other in a manner which is a function of the separation between corresponding parts of said related frames, and means for moving said film and rotating said disk at respective velocities such that said related frames are simultaneously scanned line by line.
Claim 3
Dependent Claim
43 words
Scanning apparatus according to claim 1 further comprising platen means mounted parallel to and closely spaced apart from said disk and means for forcing a fluid to flow between said platen means and said disk to maintain said disk in a desired plane.
Claim 4
Dependent Claim
46 words
Scanning apparatus according to claim 1 wherein all of said spaced-apart areas on said disk have the same radial coordinate, thereby facilitating scanning of a film in which the related frames are placed side by side in separate rows extending along the length of the film.
Claim 5
Dependent Claim
17 words
Scanning apparatus according to claim 1 wherein the scans of said related frames are of equal length.
Claim 6
Dependent Claim
15 words
Scanning apparatus according to claim 1 wherein the scans of said related frames are rectilinear.
Claim 7
Dependent Claim
18 words
Scanning apparatus according to claim 1 wherein said entrances are rectilinear and said aperture means are radially elongated.
Claim 8
Dependent Claim
70 words
Scanning apparatus according to claim 1 wherein said spaced-apart areas on said disk are divided into two groups, all of the first group having a first radial coordinate and all of the second group having a second radial coordinate different from the first radial coordinate, thereby facilitating scanning of a film in which the related frames are arranged alternately in a single row extending along the length of the film.
Claim 9
Dependent Claim
13 words
Scanning apparatus according to claim 1 wherein said entrances are of unequal dimensions.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |