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US3685899A Expired / Lapsed US ⏱️ 0.0 years remaining

Separation color recorder system

Assignee: 3M Co
•
Filing: 1970-02-11
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Granted: 1972-08-22
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Expires: 1990-02-11
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Abstract

Abstract A system to provide for the production of standard motion picture color film from a color video signal or color information composed of color components. The color video signal is decoded into its separate red, green and blue components, which components are used to provide a special form of field sequential color consisting of a repeating color group where such group contains at least one field of each of the red, green and blue components and at least one additional field of at least one of the red, green and blue components. The special form of field sequential color is recorded on standard black and white film as a black and white separation master at either 60 field per second or 50 fields per second, depending upon the field rate of the video signal, which recording is accomplished using a continuous film motion electronic beam recorder. A standard color film is made from the separation master by exposing each frame of the color film in sequence to red, green and blue separation images using appropriate color filters with the separation master.

Inventors

  • 👤 John W Reeds Jr

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 03:46
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/46; G03B27/475; H; H04; H04N; H04N5/00; H04N5/76; H04N5/84

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 165 words
A color printer for printing color film from color information reproduced on a black and white separation master wherein the black and white separation master includes sequential frames representing sequential fields of individual color components of the color information, including first means for supporting and providing movement of the black and white separation master, second means for supporting and providing movement of the color film, third means for directing light energy through the black and white separation master and toward the color film, and fourth means Coupled to the first and second means for controlling the movement provided by the first and second means so that the black and white separation master is successively moved to present the sequential frames representing the sequential fields of the individual color components, and so that the color film is moved to receive at each frame of the color film a group of the sequential frames, which group includes all of the individual color components of the color information.
Claim 2
Dependent Claim 165 words
A color printer for printing color film from color information reproduced on a black and white separation master wherein the black and white separation master includes sequential frames representing sequential fields of individual color components of the color information, including first means for supporting and providing movement of the black and white separation master, second means for supporting and providing movement of the color film, third means for directing light energy through the black and white separation master and toward the color film, and fourth means Coupled to the first and second means for controlling the movement provided by the first and second means so that the black and white separation master is successively moved to present the sequential frames representing the sequential fields of the individual color components, and so that the color film is moved to receive at each frame of the color film a group of the sequential frames, which group includes all of the individual color components of the color information.
Claim 3
Dependent Claim 39 words
The color printer of claim 1 additionally including a filter wheel located between the third means and the color film and with the filter wheel including segments having colors corresponding to the individual color components of the color information.
Claim 4
Dependent Claim 38 words
The color printer of claim 1 wherein periodic ones of the sequential frames on the black and white separation master are used as part of the group of sequential frames for two successive frames of the color film.
Claim 5
Dependent Claim 180 words
A color printer for printing color film from color information reproduced on black and white film wherein the black and white film includes sequential frames formed in groups wherein each group includes frames representing all of the individual color components and includes at least one additional frame representing at least one of the color components, including first means for supporting and providing movement of the black and white film, second means for supporting and providing movement of the color film, third means for directing light energy through the black and white film and toward the color film to expose the color film in accordance with the information contained on the black and white film, and fourth means coupled to the first and second means for controlling the movement provided by the first and second means so that each frame of color film receives light energy through sequential frames of black and white film representing all of the color components and wherein at least one frame in each group is used for the exposure of two successive frames of color film.
Claim 6
Dependent Claim 180 words
A color printer for printing color film from color information reproduced on black and white film wherein the black and white film includes sequential frames formed in groups wherein each group includes frames representing all of the individual color components and includes at least one additional frame representing at least one of the color components, including first means for supporting and providing movement of the black and white film, second means for supporting and providing movement of the color film, third means for directing light energy through the black and white film and toward the color film to expose the color film in accordance with the information contained on the black and white film, and fourth means coupled to the first and second means for controlling the movement provided by the first and second means so that each frame of color film receives light energy through sequential frames of black and white film representing all of the color components and wherein at least one frame in each group is used for the exposure of two successive frames of color film.
Claim 7
Dependent Claim 66 words
The color printer of claim 4 wherein the black and white film has been recorded at 60 frames per second and wherein each group contains five frames and wherein each group of five frames on the black and white film is used to provide two frames on the color film so as to provide for a conversion to the standard frame rate of motion picture film.
Claim 8
Dependent Claim 66 words
The color printer of claim 4 wherein the black and white film has been recorded at 50 frames per second and wherein each group contains four frames and wherein each group of four frames on the black and white film is used to provide two frames on the color film so as to provide for a conversion to the standard frame rate of motion picture film.
Claim 9
Independent Claim 227 words
A system for converting color information which is composed of a plurality of color components to motion picture color film using an intermediate black and white separation master, including first means responsive to the color information for producing a field sequential signal wherein each sequential field represents a particular one of the plurality of color components of the color information, second means coupled to the first means and the black and white separation master and responsive to the field sequential signal for recording on the black and white separation master sequential frames corresponding to each sequential field in the field sequential signal, third means for supporting and providing movement of the black and white separation master, fourth means for supporting and providing movement of the color film, fifth means for directing light energy through the black and white separation master and toward the color film, and sixth means coupled to the third and fourth means for controlling the movement provided by the third and fourth means so that the black and white separation master is successively moved to present the sequential frames representing the sequential fields of the individual color comPonents, and so that the color film is moved to receive at each frame of the color film a group of the sequential frames which group includes all of the individual color components of the color information.
Claim 10
Independent Claim 227 words
A system for converting color information which is composed of a plurality of color components to motion picture color film using an intermediate black and white separation master, including first means responsive to the color information for producing a field sequential signal wherein each sequential field represents a particular one of the plurality of color components of the color information, second means coupled to the first means and the black and white separation master and responsive to the field sequential signal for recording on the black and white separation master sequential frames corresponding to each sequential field in the field sequential signal, third means for supporting and providing movement of the black and white separation master, fourth means for supporting and providing movement of the color film, fifth means for directing light energy through the black and white separation master and toward the color film, and sixth means coupled to the third and fourth means for controlling the movement provided by the third and fourth means so that the black and white separation master is successively moved to present the sequential frames representing the sequential fields of the individual color comPonents, and so that the color film is moved to receive at each frame of the color film a group of the sequential frames which group includes all of the individual color components of the color information.
Claim 11
Dependent Claim 63 words
The system of claim 7 wherein the sequential fields in the field sequential signal are grouped into a continuously repeating color group, which color group includes at least one sequential field of each of the color components in the color information and wherein at least one additional sequential field of at least one of the color components is included in the color group.
Claim 12
Dependent Claim 240 words
A separation color recording system for converting color information composed of color components to motion picture color film using a separation master, including first means responsive to the color information for producing a field sequential signal which signal is composed of a continuously repeating group of sequential fields forming a color group wherein each sequential field represents a particular one of the color components and wherein each color group includes at least one sequential field of each of the color components and at least one additional sequential field of at least one of the color components, and second means coupled to the first means and responsive to the field sequential signal for recording each sequential field on the separation master as individual sequential frames, third means for supporting and providing movement of the separation master, fourth means for supporting and providing movement of the color film, fifth means for directing light energy through the separation master and toward the color film to expose the color film in accordance with the information contained on the separation master, and sixth means coupled to the third and fourth means for controlling the movement provided by the third and fourth means so that each frame of color film receives light energy through sequential frames of the separation master representing of the color components and wherein at least one frame in each group is used for the exposure of two successive frames of color film.
Claim 13
Dependent Claim 240 words
A separation color recording system for converting color information composed of color components to motion picture color film using a separation master, including first means responsive to the color information for producing a field sequential signal which signal is composed of a continuously repeating group of sequential fields forming a color group wherein each sequential field represents a particular one of the color components and wherein each color group includes at least one sequential field of each of the color components and at least one additional sequential field of at least one of the color components, and second means coupled to the first means and responsive to the field sequential signal for recording each sequential field on the separation master as individual sequential frames, third means for supporting and providing movement of the separation master, fourth means for supporting and providing movement of the color film, fifth means for directing light energy through the separation master and toward the color film to expose the color film in accordance with the information contained on the separation master, and sixth means coupled to the third and fourth means for controlling the movement provided by the third and fourth means so that each frame of color film receives light energy through sequential frames of the separation master representing of the color components and wherein at least one frame in each group is used for the exposure of two successive frames of color film.
Claim 14
Dependent Claim 30 words
The separation color recording system of claim 9 wherein the color information occurs at a rate of 60 fields per second and wherein each color group includes five sequential fields.
Claim 15
Dependent Claim 30 words
The separation color recording system of claim 9 wherein the color information occurs at a rate of 50 fields per second and wherein each color group includes four sequential fields.
Claim 16
Independent Claim 100 words
A method of producing a color motion picture film from color information composed of a plurality of color components, including the following steps: producing a repeating field sequential signal having each field representing a different one of the color components of the color information, recording the repeating field sequential signal on a separation master as a plurality of sequential frames and with each frame representing a different one of the fields, and printing a color film from the separation master with a plurality of frames representing all of the color components used to print each frame of the color film.
Claim 17
Independent Claim 100 words
A method of producing a color motion picture film from color information composed of a plurality of color components, including the following steps: producing a repeating field sequential signal having each field representing a different one of the color components of the color information, recording the repeating field sequential signal on a separation master as a plurality of sequential frames and with each frame representing a different one of the fields, and printing a color film from the separation master with a plurality of frames representing all of the color components used to print each frame of the color film.
Claim 18
Independent Claim 122 words
A method of producing a color print from color information composed of color components recorded on a black and white separation master, including the steps of: producing a field sequential signal composed of a repeating color group wherein each group includes fields representing each of the color components and wherein each group includes at least one additional field representing at least one of the color components, and recording the field sequential signal on a separation master as a plurality of sequential frames and with each frame representing a different one of the fields, and producing a color print from the separation master wherein each of the color groups is used in the production of more than one frame on the color film.
Claim 19
Independent Claim 122 words
A method of producing a color print from color information composed of color components recorded on a black and white separation master, including the steps of: producing a field sequential signal composed of a repeating color group wherein each group includes fields representing each of the color components and wherein each group includes at least one additional field representing at least one of the color components, and recording the field sequential signal on a separation master as a plurality of sequential frames and with each frame representing a different one of the fields, and producing a color print from the separation master wherein each of the color groups is used in the production of more than one frame on the color film.

References Cited (Backward Citations)

US2786386A Cited
US2953633A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-08-22 1976-02-21 1976-08-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-08-22 1980-02-21 1980-08-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-08-22 1984-02-21 1984-08-22 $7700.00 Window Closed / Lapsed

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