US3753612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Framing device for a continuously moving motion picture film
Assignee: Magnavox Electronic Systems Co
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Filing: 1971-11-10
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Granted: 1973-08-21
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Expires: 1991-11-10
Abstract
Abstract A device for framing a continuously moving motion picture film having a plurality of index marks, including a means for providing a beam of light for projecting images of index marks on the film or index marks directly related to the index marks on the film. A feed means continuously moves the film past the beam of light. A first detector is in alignment with the beam of light for receiving the projected images of the marks in alignment therewith for providing a coarse drive signal haVing an amplitude related to the position of the reflected image. A reflector is positioned to reflect the images of the marks in alignment therewith. A second detector is positioned to detect images reflected by the detector for providing a fine drive signal related to the positions of the received projected image. A drive assembly is coupled to receive the coarse drive signal and the fine drive signal for providing angular rotation to the reflector at a rate related to the instantaneous summation of the electrical amplitudes of the received signals.
Inventors
- 👤 B Okey
- 👤 D Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:52
CPC Classifications
G; G03; G03B; G03B41/00; G03B41/02; G03B41/04; G03B41/10
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
253 words
In a motion picture film device wherein the motion picture film has a plurality of developed frames and including a plurality of index marks each associated with a different frame, a framing system, including: means for providing a beam of light to the developed frames and the index marks for projecting images of the index marks and the frames, feed means for providing continuous motion for moving the developed frames and the index marks past the beam of light, first detector means for receiving the projected images of the index marks and for providing a coarse drive signal having an instantaneous amplitude representing the desired position of the projected image of individual index marks with respect to the first detector means, movable reflector means including drive means for reflecting the projected images of the individual frames and index marks and with said drive means coupled to receive the coarse drive signal for moving the reflector means for framing the projected images in response to the coarse dRive signal, and second detector means for receiving the reflected images of the projected images of the index marks and for providing a fine drive signal having an instantaneous amplitude representing any errors in the framing of the reflected image of the projected image of the individual index marks with respect to the second detector means and with the drive means coupled to receive the fine drive signal for moving the reflector means for correcting errors of the projected images in response to the fine drive signal.
Claim 2
Dependent Claim
253 words
In a motion picture film device wherein the motion picture film has a plurality of developed frames and including a plurality of index marks each associated with a different frame, a framing system, including: means for providing a beam of light to the developed frames and the index marks for projecting images of the index marks and the frames, feed means for providing continuous motion for moving the developed frames and the index marks past the beam of light, first detector means for receiving the projected images of the index marks and for providing a coarse drive signal having an instantaneous amplitude representing the desired position of the projected image of individual index marks with respect to the first detector means, movable reflector means including drive means for reflecting the projected images of the individual frames and index marks and with said drive means coupled to receive the coarse drive signal for moving the reflector means for framing the projected images in response to the coarse dRive signal, and second detector means for receiving the reflected images of the projected images of the index marks and for providing a fine drive signal having an instantaneous amplitude representing any errors in the framing of the reflected image of the projected image of the individual index marks with respect to the second detector means and with the drive means coupled to receive the fine drive signal for moving the reflector means for correcting errors of the projected images in response to the fine drive signal.
Claim 3
Dependent Claim
15 words
The framing device of claim 1 wherein the first and second detector means include photocells.
Claim 4
Dependent Claim
46 words
The framing device of claim 1 wherein the motion picture film contains sprocket holes associated with the different frames and with the framing system including a sprocketed member for engaging the sprockets of the motion picture film and with the sprocketed member including the index marks.
Claim 5
Dependent Claim
14 words
The framing device of claim 3 wherein the sprocketed member is a belt member.
Claim 6
Dependent Claim
14 words
The framing device of claim 3 wherein the sprocketed member is a wheel member.
Claim 7
Dependent Claim
18 words
The framing device of claim 5 wherein the sprocket wheel member is also part of the feed means.
Claim 8
Dependent Claim
60 words
The framing device of claim 1 wherein said reflector means includes: a mirror for reflecting the projected images of individual frames of the motion picture, and the drive means providing angular rotation to the mirror, the drive means coupled to receive the coarse and fine drive signals for providing angular rotation to the mirror in response to the received signals.
Claim 9
Dependent Claim
15 words
The framing device of claim 7 wherein the first and second detector means include photocells.
Claim 10
Dependent Claim
225 words
In a motion picture film device wherein the motion picture film has a plurality of developed frames and additionally including a plurality of index marks individually associated with the developed frames, a framing device, comprising: means for providing a beam of light to the index marks and the frames for projecting images of the index marks and the frames, feed means for providing continuous motion to the frames and index marks past the beam of light, a first detector in alignment with the beam of light for receiving the projected images of the index marks, the first detector providing a sawtooth coarse drive signal having an instantaneous amplitude representing the desired position of the projected image of individual index marks with respect to the first detector, a reflector for reflecting the projected images of the index marks and the frames of the motion picture film, a second detector in alignment with the reflected image of the index marks for providing a fine drive signal having an amplitude representing any deviation from a desired constant position of the reflected images with respect to the second detector, and a drive means coupled to receive the coarse drive signal and the fine drive signal for providing angular rotation of the reflector wherein the angular rotation of the reflector represents the summation of the amplitudes of the received signals.
Claim 11
Dependent Claim
225 words
In a motion picture film device wherein the motion picture film has a plurality of developed frames and additionally including a plurality of index marks individually associated with the developed frames, a framing device, comprising: means for providing a beam of light to the index marks and the frames for projecting images of the index marks and the frames, feed means for providing continuous motion to the frames and index marks past the beam of light, a first detector in alignment with the beam of light for receiving the projected images of the index marks, the first detector providing a sawtooth coarse drive signal having an instantaneous amplitude representing the desired position of the projected image of individual index marks with respect to the first detector, a reflector for reflecting the projected images of the index marks and the frames of the motion picture film, a second detector in alignment with the reflected image of the index marks for providing a fine drive signal having an amplitude representing any deviation from a desired constant position of the reflected images with respect to the second detector, and a drive means coupled to receive the coarse drive signal and the fine drive signal for providing angular rotation of the reflector wherein the angular rotation of the reflector represents the summation of the amplitudes of the received signals.
Claim 12
Dependent Claim
14 words
The framing device of claim 9 wherein the second detector is a differential photocell.
Claim 13
Dependent Claim
12 words
The framing device of claim 9 wherein the reflector is a mirror.
Claim 14
Dependent Claim
46 words
The framing device of claim 9 wherein the motion picture film contains sprocket holes associated with the different frames and with the framing system including a sprocketed member for engaging the sprockets of the motion picture film and with the sprocketed member including the index marks.
Claim 15
Dependent Claim
14 words
The framing device of claim 12 wherein the sprocketed member is a belt member.
Claim 16
Dependent Claim
14 words
The framing device of claim 12 wherein the sprocketed member is a wheel member.
Claim 17
Dependent Claim
17 words
The framing device of claim 14 wherein the sprocket wheel member forms part of the feed means.
Claim 18
Dependent Claim
237 words
In combination for providing a controlled readout of a continuously moving film having a plurality of frames of images and additionally including a plurality of index marks each asSociated with a different frame, means for providing a projection of the images on the successive frames and a projection of the index marks associated with the successive frames, a readout means for providing a readout of the images on the successive frames of the film, movable optical means for receiving the projected images and index marks and directing the projected images and index mark toward the readout means, first control means for detecting the projected index marks to produce the first control signals representing the continuous movement of the film, driving means responsive to the first control signals for moving the optical means in accordance with the characteristics of the first control signals, to obtain a direction of the projected images to the readout means in a substantially constant relationship to the readout means during the movement of the frames past the projecting means, and second control means for detecting the index marks directed by the movable optical means to produce second control signals representing any change from the substantially constant relationship in the direction of the projected images to the readout means, and the driving means responsive to the second control signals for adjusting the movements of the optical means in accordance with the second control signals.
Claim 19
Dependent Claim
237 words
In combination for providing a controlled readout of a continuously moving film having a plurality of frames of images and additionally including a plurality of index marks each asSociated with a different frame, means for providing a projection of the images on the successive frames and a projection of the index marks associated with the successive frames, a readout means for providing a readout of the images on the successive frames of the film, movable optical means for receiving the projected images and index marks and directing the projected images and index mark toward the readout means, first control means for detecting the projected index marks to produce the first control signals representing the continuous movement of the film, driving means responsive to the first control signals for moving the optical means in accordance with the characteristics of the first control signals, to obtain a direction of the projected images to the readout means in a substantially constant relationship to the readout means during the movement of the frames past the projecting means, and second control means for detecting the index marks directed by the movable optical means to produce second control signals representing any change from the substantially constant relationship in the direction of the projected images to the readout means, and the driving means responsive to the second control signals for adjusting the movements of the optical means in accordance with the second control signals.
Claim 20
Dependent Claim
25 words
The combination set forth in claim 16 wherein the optical means includes a pivotable reflector and wherein the driving means operates to pivot the reflector.
Claim 21
Dependent Claim
17 words
The combination set forth in claim 16 wherein the first and second control means, respectively, include photocells.
Claim 22
Dependent Claim
16 words
The combination set forth in claim 16 wherein the second control means includes a differential photocell.
Claim 23
Dependent Claim
38 words
The combination of claim 16 wherein the film contains sprocket holes associated with the different frames and additionally including a sprocketed member for engaging the sprockets of the film and with the sprocketed member including the index marks.
Claim 24
Dependent Claim
13 words
THe combination of claim 20 wherein the sprocketed member is a belt member.
Claim 25
Dependent Claim
13 words
The combination of claim 20 wherein the sprocketed member is a wheel member.
Claim 26
Dependent Claim
17 words
The combination of claim 22 wherein the sprocketed wheel member provides the continuous movement of the film.
Claim 27
Dependent Claim
222 words
In combination for providing a controlled readout of a continuously moving film having a plurality of frames of images and additionally including a plurality of index marks each associated with a different frame, first means for detecting the index marks associated with each successive frame, movable optical means for providing a direction of the image on each frame and the index marks during the movement of the frame and index marks, second means coupled to the first means and responsive to the index marks detected by the first means for moving the optical means at a speed representing the movement of the film to provide a substantially constant direction of the image on each successive frame and of each index mark, third means positioned adjacent to the optical means for sensing the image on each successive frame during the movement of the frame, fourth means positioned adjacent to the optical means for detecting any changes from the substantially constant direction of the index mark by the optical means during the movement of the frame, and fifth means responsive to the index marks detected by the fourth means and coupled to the second means for adjusting the movements of the optical means to compensate for any changes from the substantially constant direction to synchronize such movements with the continuous movement of the film.
Claim 28
Dependent Claim
222 words
In combination for providing a controlled readout of a continuously moving film having a plurality of frames of images and additionally including a plurality of index marks each associated with a different frame, first means for detecting the index marks associated with each successive frame, movable optical means for providing a direction of the image on each frame and the index marks during the movement of the frame and index marks, second means coupled to the first means and responsive to the index marks detected by the first means for moving the optical means at a speed representing the movement of the film to provide a substantially constant direction of the image on each successive frame and of each index mark, third means positioned adjacent to the optical means for sensing the image on each successive frame during the movement of the frame, fourth means positioned adjacent to the optical means for detecting any changes from the substantially constant direction of the index mark by the optical means during the movement of the frame, and fifth means responsive to the index marks detected by the fourth means and coupled to the second means for adjusting the movements of the optical means to compensate for any changes from the substantially constant direction to synchronize such movements with the continuous movement of the film.
Claim 29
Dependent Claim
38 words
The combination set forth in claim 24 wherein the optical means is movable relative to the film and the third means for providing a projection of each frame on a third means during the movement of the frame.
Claim 30
Dependent Claim
21 words
The combination set forth in claim 25 wherein the optical means includes a mirror which is pivotable to provide its movEment.
Claim 31
Dependent Claim
38 words
The combination of claim 24 wherein the film contains sprocket holes associated with the different frames and additionally including a sprocketed member for engaging the sprockets of the film and with the sprocketed member including the index marks.
Claim 32
Dependent Claim
13 words
The combination of claim 27 wherein the sprocketed member is a belt member.
Claim 33
Dependent Claim
13 words
The combination of claim 27 wherein the sprocketed member is a wheel member.
Claim 34
Dependent Claim
17 words
The combination of claim 29 wherein the sprocketed wheel member provides the continuous movement of the film.
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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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |