US3774169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data storage and color analysis systems
Assignee: Individual
•
Filing: 1971-02-08
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Granted: 1973-11-20
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Expires: 1991-02-08
Abstract
Abstract A digital-to-analog converter mechanism converts multiple-bit digital data bytes into single-bit analog bytes which control the color and intensity of light produced at different elemental locations on the display screen of a color cathode-ray tube. The display screen image is recorded on color photographic film. Readout of the recorded film data is accomplished by scanning the color film with a beam of white light and using a set of photomultiplier tubes with color-selective filters to reconstruct replicas of the original analog signals. These analog signals are supplied to an analog-to-digital converter mechanism to reconstruct replicas of the original multiple-bit digital data bytes. The basic readout apparatus is also useful as a color analyzer for analyzing plural-color specimens of different substances.
Inventors
- 👤 K Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:20
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/28; G01; G01J; G01J3/00; G01J3/46; G11; G11C; G11C13/00; G11C13/04; G01J3/50; G01J3/51; G01J3/513
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
167 words
A data storage system comprising: means for producing light in a plurality of colors and intensities; means for exposing elemental areas of a plural-color photographic film with light from the light producing means; means for converting groups of digital data bits into analog signals whose amplitudes are determined by the groups of digital data bits; means for enabling the analog signals to control the color and intensity of the light produced by the light producing means, the intensity and color of the light being determined by the amplitude of the analog signals; means for sensing the color valves recorded on the photographic film and producing a plurality of analog signals individually representing the intensities of at least one component color recorded in the elemental areas on such photographic film; and means for converting each analog signal from the sensing means into a group of digital data bits whose value is determined by the color represented by the analog signal and by the amplitude of the analog signal.
Claim 2
Dependent Claim
167 words
A data storage system comprising: means for producing light in a plurality of colors and intensities; means for exposing elemental areas of a plural-color photographic film with light from the light producing means; means for converting groups of digital data bits into analog signals whose amplitudes are determined by the groups of digital data bits; means for enabling the analog signals to control the color and intensity of the light produced by the light producing means, the intensity and color of the light being determined by the amplitude of the analog signals; means for sensing the color valves recorded on the photographic film and producing a plurality of analog signals individually representing the intensities of at least one component color recorded in the elemental areas on such photographic film; and means for converting each analog signal from the sensing means into a group of digital data bits whose value is determined by the color represented by the analog signal and by the amplitude of the analog signal.
Claim 3
Dependent Claim
92 words
A data recorder comprising: means for producing light in a plurality of colors and intensities; means for exposing elemental areas of a plural-color photographic film with light from the light producing means; means for converting groups of digital data bits into analog signals whose amplitudes are determined by the groups of digital data bits; and means for enabling the analog signals to control the color and intensity of the light produced by the light producing means, the intensity and color of the light being determined by the amplitude of the analog signals.
Claim 4
Dependent Claim
92 words
A data recorder comprising: means for producing light in a plurality of colors and intensities; means for exposing elemental areas of a plural-color photographic film with light from the light producing means; means for converting groups of digital data bits into analog signals whose amplitudes are determined by the groups of digital data bits; and means for enabling the analog signals to control the color and intensity of the light produced by the light producing means, the intensity and color of the light being determined by the amplitude of the analog signals.
Claim 5
Dependent Claim
36 words
A data recorder in accordance with claim 2 wherein the light producing means is a color cathode ray tube having electron beam generating means and a plural-color phosphor screen for producing light images in different colors.
Claim 6
Dependent Claim
27 words
A data recorder in accordance with claim 3 wherein the exposing means includes an electron beam deflection system for deflecting the electron beam across the phosphor screen.
Claim 7
Dependent Claim
27 words
A data recorder in accordance with claim 4 wherein the exposing means further includes optical means for focusing the phosphor screen image onto the plural-color photographic film.
Claim 8
Dependent Claim
85 words
A data recorder in accordance with claim 4 wherein the converting means comprises a digital-to-analog converter and the enabling means includes amplitude sensitive signal separator means for separating analog signal portions falling within different amplitude raNges and means for enabling the signal portions for one amplitude range to control the intensity of light produced by the phosphors of one color and means for enabling the signal portions for another amplitude range to control the intensity of light produced by the phosphors of a different color.
Claim 9
Dependent Claim
51 words
A data recorder in accordance with claim 1 and further including signal conditioner means coupled intermediate the amplitude sensitive signal separator means and the color cathode ray tube for adjusting the levels and amplitude ranges of the separated signal portions to accommodate the operating requirements of the color cathode ray tube.
Claim 10
Dependent Claim
83 words
A data recorder in accordance with claim 4 wherein the converting means comprises a plurality of digital-to-analog converters for individually converting different subgroups of the digital data bits into different analog signals and the enabling means includes means for enabling one of the subgroup analog signals to control the intensity of light produced by the phosphors of one color and means for enabling another of the subgroup analog signals to control the intensity of light produced by the phosphors of a different color.
Claim 11
Dependent Claim
52 words
A data recorder in accordance with claim 8 and further including a plurality of signal conditioner circuits coupled intermediate the digital-to-analog converters and the color cathode ray tube for adjusting the levels and amplitude ranges of the different subgroup analog signals to accommodate the operating requirements of the color cathode ray tube.
Claim 12
Dependent Claim
49 words
A data recorder in accordance with claim 2 and further including automatic control means responsive to the light produced by the light producing means at prescribed points during the exposing operation for adjusting the enabling means as may be necessary to provide a predetermined calibration for the recording operation.
Claim 13
Dependent Claim
73 words
A data recorder in accordance with claim 4 and further comprising automatic control means including light sensitive means responsive to light produced by the color cathode ray tube, signal adjusting means coupled in circuit with the enabling means and comparator means for comparing signals produced by the light sensing means with predetermined reference signals and adjusting the signal adjusting means as may be necessary to provide a predetermined calibration for the recording operation.
Claim 14
Dependent Claim
138 words
A data reader for reading data recorded in elemental areas on plural-color photographic films comprising: means for sensing the color values recorded on the photographic film and producing a plurality of analog signals individually representing the intensities of at least one component color recorded in the elemental areas on such photographic film; means for converting each analog signal from the sensing means into a group of digital data bits; and automatic control means including signal adjusting means coupled intermediate the sensing means and the converting means in the signal transfer paths for the analog signals and comparator means responsive to the analog signals being supplied to the converting means for comparing same with predetermined reference signals at prescribed points during the sensing operation and adjusting the signal adjusting means to provide a predetermined calibration for the readout operations.
Claim 15
Dependent Claim
138 words
A data reader for reading data recorded in elemental areas on plural-color photographic films comprising: means for sensing the color values recorded on the photographic film and producing a plurality of analog signals individually representing the intensities of at least one component color recorded in the elemental areas on such photographic film; means for converting each analog signal from the sensing means into a group of digital data bits; and automatic control means including signal adjusting means coupled intermediate the sensing means and the converting means in the signal transfer paths for the analog signals and comparator means responsive to the analog signals being supplied to the converting means for comparing same with predetermined reference signals at prescribed points during the sensing operation and adjusting the signal adjusting means to provide a predetermined calibration for the readout operations.
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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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |