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US4293871A Expired / Lapsed US ⏱️ 0.0 years remaining

Solid state color television camera with multiple line readout

Assignee: Individual
•
Filing: 1979-12-03
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Granted: 1981-10-06
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Expires: 1999-12-03
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Abstract

Abstract A color image is imaged onto a single photosensitive array containing color filter material arranged in repetitive groups adjacent to the photosensitive elements. The information is stored and a plurality of lines in the array are read out simultaneously to provide all of the color information. In some embodiments the same lines are scanned every field since the chrominance information can have reduced resolution.

Inventors

  • 👤 Albert Macovski

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 22:23
CPC Classifications
H; H04; H04N; H04N25/00; H04N25/10; H04N25/11; H04N23/00; H04N23/80; H04N23/84; H04N25/13; H04N25/133

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 116 words
Apparatus for providing standard color television signals from a scene comprising: an array of photosensitive elements arranged in horizontal lines; color filters covering the horizontal lines of photosensitive elements arranged in a vertical sequence consisting of three primary colors where one color is repeated every alternate horizontal line and the other two are each repeated every fourth horizontal line; means for imaging the scene, through the color filters, onto the array of photosensitive elements to provide stored information at each element; means for simultaneously reading out the stored information from three adjacent lines consisting of three different colors to provide scanned signals; and means for combining the scanned signals to provide the standard color television signals.
Claim 2
Dependent Claim 116 words
Apparatus for providing standard color television signals from a scene comprising: an array of photosensitive elements arranged in horizontal lines; color filters covering the horizontal lines of photosensitive elements arranged in a vertical sequence consisting of three primary colors where one color is repeated every alternate horizontal line and the other two are each repeated every fourth horizontal line; means for imaging the scene, through the color filters, onto the array of photosensitive elements to provide stored information at each element; means for simultaneously reading out the stored information from three adjacent lines consisting of three different colors to provide scanned signals; and means for combining the scanned signals to provide the standard color television signals.
Claim 3
Dependent Claim 28 words
Apparatus as recited in claim 1 where green color filters are used every alternate horizontal line and red and blue are alternately used in the remaining horizontal lines.
Claim 4
Dependent Claim 17 words
Apparatus as recited in claim 1 where a luminance color filter is used every alternate horizontal line.
Claim 5
Dependent Claim 137 words
Apparatus for providing standard color television signals from a scene comprising: an array of photosensitive elements arranged in horizontal lines; color filters covering the horizontal lines of photosensitive elements wherein each alternate line is filtered with a first repetitive alternating element pattern of two colors and the remaining lines are filtered with a second repetitive alternating element pattern of two different colors means for imaging the scene, through the color filters, onto the array of photosensitive elements to provide stored information at each element means for simultaneously reading out the lines containing the first and second repetitive alternating patterns to provide scanned signals; modulator means for sequentially varying the gain of the scanned signals of alternate elements whereby color errors can be corrected; and means for combining the scanned signals to provide the standard color television signals.
Claim 6
Dependent Claim 137 words
Apparatus for providing standard color television signals from a scene comprising: an array of photosensitive elements arranged in horizontal lines; color filters covering the horizontal lines of photosensitive elements wherein each alternate line is filtered with a first repetitive alternating element pattern of two colors and the remaining lines are filtered with a second repetitive alternating element pattern of two different colors means for imaging the scene, through the color filters, onto the array of photosensitive elements to provide stored information at each element means for simultaneously reading out the lines containing the first and second repetitive alternating patterns to provide scanned signals; modulator means for sequentially varying the gain of the scanned signals of alternate elements whereby color errors can be corrected; and means for combining the scanned signals to provide the standard color television signals.
Claim 7
Dependent Claim 30 words
Apparatus as recited in claim 4 wherein the vertically adjacent color filters of the alternate lines and the remaining alternate lines have a combined transmission which provides the luminance information.
Claim 8
Dependent Claim 31 words
Apparatus as recited in claim 5 wherein the repetitive alternating pattern of each alternate line includes color filters which are complementary to the corresponding color filters of the remaining alternate lines.
Claim 9
Dependent Claim 51 words
Apparatus as recited in claims 1 or 4 where the means for combining the scanned signals includes means for producing a luminance signal and where the luminance signal is filtered by a vertical aperture compensator where the luminance signal from an adjacent horizontal line is subtracted from the filtered luminance signal.
Claim 10
Dependent Claim 128 words
Apparatus for providing standard color television signals from a scene comprising: an array of photosensitive elements arranged in horizontal lines; color filters covering the horizontal lines of photosensitive elements wherein the color filters are arranged vertically in alternating groups of three lines where each group includes identical uniform color filters on two lines and one repetitive alternating pattern of color filters on the remaining line; means for imaging the scene, through the color filters, onto the array of photosensitive elements to provide stored information at each element; means for simultaneously reading out a line containing a uniform color filter and an adjacent line containing a repetitive alternating pattern of color filters to provide scanned signals; means for combining the scanned signals to provide the standard color television signals.
Claim 11
Dependent Claim 128 words
Apparatus for providing standard color television signals from a scene comprising: an array of photosensitive elements arranged in horizontal lines; color filters covering the horizontal lines of photosensitive elements wherein the color filters are arranged vertically in alternating groups of three lines where each group includes identical uniform color filters on two lines and one repetitive alternating pattern of color filters on the remaining line; means for imaging the scene, through the color filters, onto the array of photosensitive elements to provide stored information at each element; means for simultaneously reading out a line containing a uniform color filter and an adjacent line containing a repetitive alternating pattern of color filters to provide scanned signals; means for combining the scanned signals to provide the standard color television signals.
Claim 12
Dependent Claim 28 words
Apparatus as recited in claim 8 where the uniform color filter is a luminance filter and the repetitive alternating pattern of color filters are two different primary colors.
Claim 13
Dependent Claim 54 words
Apparatus as recited in claims 1 or 8 where the means for imaging the scene onto the array of photosensitive elements is an anomorphic imaging system where the vertical size of the image, normal to the direction of the horizontal lines, is magnified by an amount greater than the horizontal magnification of the image.

References Cited (Backward Citations)

US2884483A Cited
US4117510A Cited
US4148059A Cited
DE2905816A1 Cited
US4245241A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-10-05 1985-04-06 1985-10-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-10-05 1989-04-06 1989-10-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-10-05 1993-04-06 1993-10-06 $7700.00 Window Closed / Lapsed

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