Patent US3707599A successfully refreshed from Google Patents.
US3707599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for scanning continuously moving film for color television
Assignee: Eastman Kodak Co
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Filing: 1971-12-27
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Granted: 1972-12-26
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Expires: 1991-12-27
Abstract
Abstract A system for scanning a continuously moving information bearing strip includes means for varying the position of a scanning raster synchronously with and in the direction of the film movement. When the film motion is stopped for single frame viewing, the position of the scanning raster is also stopped and a full scan of the frame then in position is effected without reframing. According to one embodiment, the position of the scanning raster is varied under control of a rotating potentiometer and, according to a second embodiment, by a ring counter. In a third embodiment, the positioning of the scanning raster is controlled by a member having a variable transmission of radiation and coupled to the movement of the information bearing strip, and a device sensitive to radiation directed through the member.
Inventors
- 👤 Morris E Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:48
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/11; H04N3/00; H04N3/36; H04N3/38
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
491 words
Apparatus for deriving an image signal from an information bearing medium having a plurality of successive image frames disposed thereon, the image frames having a given dimension along the length of the information bearing medium, said apparatus comprising: a. means for defining an aperture; b. drive means operable in a first mode for moving the image frames of the information bearing medium at a nominal rate relative to said aperture and operable in a second mode for disposing an image frame of the information bearing medium in a stationary relationship with respect to said aperture; c. means for producing a first signal having a first frequency equal to the predetermined repetitive frequency of said scanning means, a first wave form having a maximum amplitude related to the given dimension of said image frames and a first slope established by the first frequency and the maximum amplitude of the first signal; d. means responsive to the relative position and the nominal rate of movement of the image frames with respect to said aperture for producing a second signal indicative of the relative position of the scanned image frames with respect to said aperture when said drive means is operative in said first mode, said second signal having a second frequency equal to an integral submultiple of the first frequency and related to the nominal rate of movement of the image frames and a second wave form having a maximum amplitude related to the given dimension of the image frames and a second slope established by the second frequency and the maximum amplitude of the second signal; e. means responsive to the operation of said moving means in said second mode for producing a third signal having a signal level dependent upon the relative position of a stationary image frame with respect to said aperture; f. means responsive to the operation of said moving means in said first mode for combining the first signal and the second signal to produce a fourth signal having fourth frequency related to the combined first and second frequencies and a complex wave form having repetitive cycle recurring at the second frequency; g. means responsive to the operation of said moving means in said second mode for combining the first signal and the third signal to produce a fifth signal; h. scanning means responsive to the operation of said moving means in said first mode and responsive to the fourth signal for scanning, at the first frequency, said image frames moving relative to said aperture in a raster pattern comprising a plurality of spaced line scans, and responsive to the operation of said moving means in said second mode and the fifth signal for scanning, at the first frequency, the stationary image frames located with respect to said aperture in said raster pattern; and i. means responsive to the scanning of said image frames by said scanning means for providing an image signal of the scanned image frames.
Claim 2
Dependent Claim
491 words
Apparatus for deriving an image signal from an information bearing medium having a plurality of successive image frames disposed thereon, the image frames having a given dimension along the length of the information bearing medium, said apparatus comprising: a. means for defining an aperture; b. drive means operable in a first mode for moving the image frames of the information bearing medium at a nominal rate relative to said aperture and operable in a second mode for disposing an image frame of the information bearing medium in a stationary relationship with respect to said aperture; c. means for producing a first signal having a first frequency equal to the predetermined repetitive frequency of said scanning means, a first wave form having a maximum amplitude related to the given dimension of said image frames and a first slope established by the first frequency and the maximum amplitude of the first signal; d. means responsive to the relative position and the nominal rate of movement of the image frames with respect to said aperture for producing a second signal indicative of the relative position of the scanned image frames with respect to said aperture when said drive means is operative in said first mode, said second signal having a second frequency equal to an integral submultiple of the first frequency and related to the nominal rate of movement of the image frames and a second wave form having a maximum amplitude related to the given dimension of the image frames and a second slope established by the second frequency and the maximum amplitude of the second signal; e. means responsive to the operation of said moving means in said second mode for producing a third signal having a signal level dependent upon the relative position of a stationary image frame with respect to said aperture; f. means responsive to the operation of said moving means in said first mode for combining the first signal and the second signal to produce a fourth signal having fourth frequency related to the combined first and second frequencies and a complex wave form having repetitive cycle recurring at the second frequency; g. means responsive to the operation of said moving means in said second mode for combining the first signal and the third signal to produce a fifth signal; h. scanning means responsive to the operation of said moving means in said first mode and responsive to the fourth signal for scanning, at the first frequency, said image frames moving relative to said aperture in a raster pattern comprising a plurality of spaced line scans, and responsive to the operation of said moving means in said second mode and the fifth signal for scanning, at the first frequency, the stationary image frames located with respect to said aperture in said raster pattern; and i. means responsive to the scanning of said image frames by said scanning means for providing an image signal of the scanned image frames.
Claim 3
Dependent Claim
93 words
The apparatus of claim 1 wherein said second and third signal producing means includes a variable impedance connected to a potential source and a movable contact coupled to said drive means, which, when operative in said first mode moves said contact over said variable impedance to produce the second signal on said contact and which, when operative in said second mode, maintains said contact at a point on said variable impedance corresponding to the stationary position of an image frame with respect to said aperture to produce the third signal on said contact.
Claim 4
Dependent Claim
110 words
The apparatus of claim 1 wherein saId second and third signal producing means comprises a member rotatively connected to said drive means and having first and second portions of differing radiation transmission, means for generating and directing radiation through said member, and means responsive to the radiation transmitted through said member for providing the second signal having the second frequency and second wave form dependent upon the transmitted radiation when said drive means is operative in said first mode and the third signal having a constant amplitude related to the position of an image frame with respect to said aperture when said drive means is operative in said second mode.
Claim 5
Dependent Claim
59 words
The apparatus of claim 1 wherein the first wave form of the first signal comprises a sawtooth wave form of a first polarity, the second wave form of the second signal comprises a sawtooth wave form of a second polarity, and the complex wave form of the third signal comprises a cyclic sawtooth wave form of the first polarity.
Claim 6
Independent Claim
304 words
A method of repetitively deriving an image signal recurring at a first predetermined frequency from an information bearing medium having a plurality of successive image frames disposed thereon, the image frames having a given dimension along the length of the information bearing medium, said method comprising the steps of: a. moving the image frames of the information bearing medium at a nominal rate relative to an aperture; b. providing a first signal having a regular, periodic, wave form of said first frequency and a maximum amplitude related to said given dimension; c. detecting the nominal rate of movement of the image frames relative to said aperture and producing therefrom a second signal having a second frequency, a regular, periodic wave form of a second frequency and a maximum amplitude related to said given dimension, the second frequency being related to the nominal rate of movement of the image frames and the wave form of the second signal being representative of the instantaneous position of an image frame with respect to said aperture; d. scanning at said first predetermined repetitive frequency of the first signal said image frames moving relative to said aperture in a raster pattern comprising a plurality of spaced line scans and providing an image signal of the scanned image frames in response to the first and second signals; e. halting the movement of an image frame of the information bearing medium in a stationary relationship to said aperture; f. detecting the position of the stationary image frame and producing a third signal having an amplitude representative of the detected stationary position of the stationary image frame; and g. scanning at said first predetermined repetitive frequency said stationary image frame in said raster pattern and providing an image signal of the scanned image frame in response to the first and third signals.
Claim 7
Independent Claim
304 words
A method of repetitively deriving an image signal recurring at a first predetermined frequency from an information bearing medium having a plurality of successive image frames disposed thereon, the image frames having a given dimension along the length of the information bearing medium, said method comprising the steps of: a. moving the image frames of the information bearing medium at a nominal rate relative to an aperture; b. providing a first signal having a regular, periodic, wave form of said first frequency and a maximum amplitude related to said given dimension; c. detecting the nominal rate of movement of the image frames relative to said aperture and producing therefrom a second signal having a second frequency, a regular, periodic wave form of a second frequency and a maximum amplitude related to said given dimension, the second frequency being related to the nominal rate of movement of the image frames and the wave form of the second signal being representative of the instantaneous position of an image frame with respect to said aperture; d. scanning at said first predetermined repetitive frequency of the first signal said image frames moving relative to said aperture in a raster pattern comprising a plurality of spaced line scans and providing an image signal of the scanned image frames in response to the first and second signals; e. halting the movement of an image frame of the information bearing medium in a stationary relationship to said aperture; f. detecting the position of the stationary image frame and producing a third signal having an amplitude representative of the detected stationary position of the stationary image frame; and g. scanning at said first predetermined repetitive frequency said stationary image frame in said raster pattern and providing an image signal of the scanned image frame in response to the first and third signals.
Claim 8
Independent Claim
299 words
A method of repetitively deriving an image signal recurring at a first predetermined frequency from an information bearing medium having a plurality of successive image frames disposed thereon, the image frames having a given dimension along the length of the information bearing medium, said method comprising the steps of: a. moving the image frames of the information bearing medium at a nominal rate relative to an aperture; b. providing a first signal having a regular, periodic, wave form of said first frequency and a maximum amplitude related to said given dimension; c. detecting the nominal rate of movement of the image frames relative to said aperture and producing therefrom a second signal having a second frequency, a regular, periodic wave form of a second frequency and a maximum amplitude related to said given dimension, the second frequency being related to the first frequency as an integral submultiple thereof, and the wave form of the second signal being representative of the instantaneous position of an image frame with respect to said aperture; d. scanning at said first predetermined repetitive frequency said image frames moving relative to said aperture in a raster pattern comprising a plurality of spaced line scans and providing an image signal of the scanned image frames in response to the first and second signals; e. halting the movement of an image frame of the information bearing medium in a stationary relationship to said aperture; f. detecting the position of the stationary image frame and producing a third signal having an amplitude representative of the detected stationary position of the stationary image frames; and g. scanning at said first predetermined repetitive frequency said stationary image frame in said raster pattern and providing an image signal of the scanned image frame in response to the first and third signals.
Claim 9
Independent Claim
299 words
A method of repetitively deriving an image signal recurring at a first predetermined frequency from an information bearing medium having a plurality of successive image frames disposed thereon, the image frames having a given dimension along the length of the information bearing medium, said method comprising the steps of: a. moving the image frames of the information bearing medium at a nominal rate relative to an aperture; b. providing a first signal having a regular, periodic, wave form of said first frequency and a maximum amplitude related to said given dimension; c. detecting the nominal rate of movement of the image frames relative to said aperture and producing therefrom a second signal having a second frequency, a regular, periodic wave form of a second frequency and a maximum amplitude related to said given dimension, the second frequency being related to the first frequency as an integral submultiple thereof, and the wave form of the second signal being representative of the instantaneous position of an image frame with respect to said aperture; d. scanning at said first predetermined repetitive frequency said image frames moving relative to said aperture in a raster pattern comprising a plurality of spaced line scans and providing an image signal of the scanned image frames in response to the first and second signals; e. halting the movement of an image frame of the information bearing medium in a stationary relationship to said aperture; f. detecting the position of the stationary image frame and producing a third signal having an amplitude representative of the detected stationary position of the stationary image frames; and g. scanning at said first predetermined repetitive frequency said stationary image frame in said raster pattern and providing an image signal of the scanned image frame in response to the first and third signals.
Claim 10
Dependent Claim
421 words
Apparatus for deriving an image frame from an information bearing medium having a plurality of successive image frames disposed thereon, the image frames having a given dimension along the length of the information bearing medium, said apparatus comprising: a. means for defining an aperture; b. means operable in a first mode for moving the image frames of the information bearing medium at a nominal rate relative to said aperture and operable in a second mode for disposing the information bearing medium in a stationary relationship with respect to said aperture; c. means for providing a first signal having a first regular, periodic wave form of a first frequency, said first wave form having a maximum amplitude dependent upon the given dimension of said image frames; d. means responsive to the operation of said moving means in said first mode for producing a second signal having a second regular, periodic, wave form of a second frequency, said second frequency being lower than the first frequency and being related to the rate of movement of the moving image frames, the second wave form having a maximum amplitude dependent upon the given dimension of said image frames; e. means responsive to the operation of said moving means in said second mode for producing a third signal having a signal level dependent upon the relative position of a stationary image frame with respect to said aperture; f. means responsive to the operation of said moving means in said first mode for combining the first signal and the second signal to produce a fourth signal having fourth frequency related to the combined first and second frequencies and a complex wave form having a repetitive cycle recurring at the second frequency; g. means responsive to the operation of said moving means in said second mode for combining the first signal and the third signal to produce a fifth signal; h. scanning means responsive to the operation of said moving means in said first mode and responsive to the fourth signal for scanning, at the first frequency, said image frames moving relative to said aperture in a raster pattern comprising a plurality of spaced line scans, and responsive to the operation of said moving means in said second mode and the fifth signal for scanning, at the first frequency, the stationary image frames located with respect to said aperture in said raster pattern; and i. means responsive to the scanning of said image frames by said scanning means for providing an image signal of the scanned image frames.
Claim 11
Dependent Claim
421 words
Apparatus for deriving an image frame from an information bearing medium having a plurality of successive image frames disposed thereon, the image frames having a given dimension along the length of the information bearing medium, said apparatus comprising: a. means for defining an aperture; b. means operable in a first mode for moving the image frames of the information bearing medium at a nominal rate relative to said aperture and operable in a second mode for disposing the information bearing medium in a stationary relationship with respect to said aperture; c. means for providing a first signal having a first regular, periodic wave form of a first frequency, said first wave form having a maximum amplitude dependent upon the given dimension of said image frames; d. means responsive to the operation of said moving means in said first mode for producing a second signal having a second regular, periodic, wave form of a second frequency, said second frequency being lower than the first frequency and being related to the rate of movement of the moving image frames, the second wave form having a maximum amplitude dependent upon the given dimension of said image frames; e. means responsive to the operation of said moving means in said second mode for producing a third signal having a signal level dependent upon the relative position of a stationary image frame with respect to said aperture; f. means responsive to the operation of said moving means in said first mode for combining the first signal and the second signal to produce a fourth signal having fourth frequency related to the combined first and second frequencies and a complex wave form having a repetitive cycle recurring at the second frequency; g. means responsive to the operation of said moving means in said second mode for combining the first signal and the third signal to produce a fifth signal; h. scanning means responsive to the operation of said moving means in said first mode and responsive to the fourth signal for scanning, at the first frequency, said image frames moving relative to said aperture in a raster pattern comprising a plurality of spaced line scans, and responsive to the operation of said moving means in said second mode and the fifth signal for scanning, at the first frequency, the stationary image frames located with respect to said aperture in said raster pattern; and i. means responsive to the scanning of said image frames by said scanning means for providing an image signal of the scanned image frames.
Claim 12
Dependent Claim
66 words
The apparatus of claim 7 wherein the first wave form of the first signal comprises a sawtooth wave form having a first predetermined slope and polarity, the second wave form of the second signal comprises a sawtooth wave form of a second predetermined slope and polarity, and the complex wave form of the fourth signal comprises a cyclic sawtooth wave form of the first predetermined polarity.
Claim 13
Dependent Claim
93 words
The apparatus of claim 7 wherein said second and third signal producing means includes a variable impedance connected to a potential source and a movable contact coupled to said drive means, which, when operative in said first mode moves said contact over said variable impedAnce to produce the second signal on said contact and which, when operative in said second mode, maintains said contact at a point on said variable impedance corresponding to the stationary position of an image frame with respect to said aperture to produce the third signal on said contact.
Claim 14
Dependent Claim
110 words
The apparatus of claim 7 wherein said second and third signal producing means comprises a member rotatively connected to said drive means and having first and second portions of differing radiation transmission, means for generating and directing radiation through said member, and means responsive to the radiation transmitted through said member for providing the second signal having the second frequency and second wave form dependent upon the transmitted radiation when said drive means is operative in said first mode and the third signal having a constant amplitude related to the position of an image frame with respect to said aperture when said drive means is operative in said second mode.
References Cited (Backward Citations)
US2922841A
Cited
US3619483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |