Patent US4434435A successfully refreshed from Google Patents.
US4434435A
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US
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Solid state color imaging apparatus
Assignee: Panasonic Holdings Corp
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Filing: 1981-11-18
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Granted: 1984-02-28
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Expires: 2001-11-18
Abstract
Abstract A solid state color imaging apparatus is constructed by combining a solid state image sensor having a plurality of photoelectric elements disposed in two dimensional rows with parallel stripe type color filters having repetition of three or four color-filter-element stripes put in front of the image sensor. The device is free from hitherto required severe registration between the filter and the solid state image sensor. This is accomplished by selecting relative spatial phase relation between the filtered picture elements of horizontal scanning lines in a manner that the phase relation changes for every horizontal lines which are scanned in sequence. The demodulation of the chrominance signal to produce NTSC signal is made by using synchronous demodulator.
Inventors
- 👤 Makoto Fujimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:41
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/30; H10F77/306; H10F77/331; H04; H04N; H04N25/00; H04N25/10; H04N25/11
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
152 words
A solid state color imaging apparatus comprising: a solid state image sensor comprising a plurality of picture elements regularly disposed in two dimensional patterns, the disposition comprising a plurality of horizontal lines, each having a plurality of picture elements disposed in repetition at a predetermined pitch, a color filter comprising a plurality of substantially parallel stripes of color filter elements, said row having repetition of stripes of a predetermined number of color filter elements, characterized in that spatial relations between the phases of repetition of the picture elements in the horizontal lines and the phases of repetition of stripes of the color filters are changed for different horizontal lines which are scanned in sequence, wherein said phases of the repetition of the picture elements in the horizontal lines are changed for every horizontal lines which are scanned in sequence, and wherein said change of phase per one horizontal line is substantially 90°.
Claim 2
Dependent Claim
152 words
A solid state color imaging apparatus comprising: a solid state image sensor comprising a plurality of picture elements regularly disposed in two dimensional patterns, the disposition comprising a plurality of horizontal lines, each having a plurality of picture elements disposed in repetition at a predetermined pitch, a color filter comprising a plurality of substantially parallel stripes of color filter elements, said row having repetition of stripes of a predetermined number of color filter elements, characterized in that spatial relations between the phases of repetition of the picture elements in the horizontal lines and the phases of repetition of stripes of the color filters are changed for different horizontal lines which are scanned in sequence, wherein said phases of the repetition of the picture elements in the horizontal lines are changed for every horizontal lines which are scanned in sequence, and wherein said change of phase per one horizontal line is substantially 90°.
Claim 3
Dependent Claim
53 words
A solid state color imaging apparatus in accordance with claim 1, wherein said phases of repetition of the stripes of the color filter element in the horizontal lines are changed for every horizontal lines which are scanned in sequence by disposing said stripes of the color filter elements oblique to said horizontal lines.
Claim 4
Dependent Claim
45 words
A solid state color imaging apparatus in accordance with claim 1, wherein spatial frequency f p of said repetition of the picture elements and spatial frequency f f of said repetition of the color filter elements has a relation of f f =1/2f p .
Claim 5
Dependent Claim
44 words
A solid state color imaging apparatus in accordance with claim 1, wherein said color filter comprises stripes of color filter elements of red color for passing red light, green color for passing green light and cyan color for passing lights other than red light.
Claim 6
Dependent Claim
57 words
A solid state color imaging apparatus in accordance with claim 1, wherein said color filter comprises stripes of color filter elements of transparent or translucent for passing lights of all colors, cyan color for passing lights other than red light, green color for passing light of green color, yellow color for passing lights other than blue light.
Claim 7
Dependent Claim
148 words
A solid state color imaging apparatus comprising: a solid state image sensor comprising a plurality of picture elements regularly disposed in two dimensional patterns, the disposition comprising a plurality of horizontal lines, each having a plurality of picture elements disposed in repetition at a predetermined pitch, a color filter comprising a plurality of substantially parallel stripes of color filter elements, said row having repetition of stripes of a predetermined number of color filter elements, characterized in that spatial relations between the phases of repetition of the picture elements in the horizontal lines and the phases of repetition of stripes of the color filters are changed for different horizontal lines which are scanned in sequence, and spatial frequency f p of said repetition of the picture elements and spatial frequency f f of said repetition of the color filter elements has a relation of f f =1/2f p .
Claim 8
Dependent Claim
148 words
A solid state color imaging apparatus comprising: a solid state image sensor comprising a plurality of picture elements regularly disposed in two dimensional patterns, the disposition comprising a plurality of horizontal lines, each having a plurality of picture elements disposed in repetition at a predetermined pitch, a color filter comprising a plurality of substantially parallel stripes of color filter elements, said row having repetition of stripes of a predetermined number of color filter elements, characterized in that spatial relations between the phases of repetition of the picture elements in the horizontal lines and the phases of repetition of stripes of the color filters are changed for different horizontal lines which are scanned in sequence, and spatial frequency f p of said repetition of the picture elements and spatial frequency f f of said repetition of the color filter elements has a relation of f f =1/2f p .
Claim 9
Dependent Claim
44 words
A solid state color imaging apparatus in accordance with claim 6, wherein said color filter comprises stripes of color filter elements of red color for passing red light, green color for passing green light and cyan color for passing lights other than red light.
Claim 10
Dependent Claim
57 words
A solid state color imaging apparatus in accordance with claim 6, wherein said color filter comprises stripes of color filter elements of transparent or translucent for passing lights of all colors, cyan color for passing lights other than red light, green color for passing light of green color, yellow color for passing lights other than blue lights.
Claim 11
Dependent Claim
36 words
A solid state color imaging apparatus in accordance with claim 6, wherein said phases of the repetition of the picture elements in the horizontal lines are changed for different horizontal lines which are scanned in sequence.
Claim 12
Dependent Claim
44 words
A solid state color imaging apparatus in accordance with claim 9, wherein said color filter comprises stripes of color filter elements of red color for passing red light, green color for passing green light and cyan color for passing lights other than red light.
Claim 13
Dependent Claim
57 words
A solid state color imaging apparatus in accordance with claim 9, wherein said color filter comprises stripes of color filter elements of transparent of translucent for passing lights of all colors, cyan color for passing lights other than red lights, green color for passing light of green color, yellow color for passing lights other than blue light.
Claim 14
Dependent Claim
53 words
A solid state color imaging apparatus in accordance with claim 6, wherein said phases of repetition of the stripes of the color filter element in the horizontal lines are changed for every horizontal lines which are scanned in sequence by disposing said stripes of the color filter elements oblique to said horizontal lines.
Claim 15
Dependent Claim
43 words
A solid state color imaging apparatus in accordance with claim 12, wherein said color filter comprises stripes of color filter elements of red color for passing redlight, green color for passing green light and cyan color for passing lights other than red light.
Claim 16
Dependent Claim
57 words
A solid state color imaging apparatus in accordance with claim 12, wherein said color filter comprises stripes of color filter elements of transparent or translucent for passing lights of all colors, cyan color for passing lights other than red light, green color for passing light of green color, yellow color for passing lights other than blue light.
Claim 17
Dependent Claim
23 words
A solid state color imaging apparatus in accordance with claim 6, wherein said change of phase per one horizontal line is substantially 90°.
Claim 18
Dependent Claim
36 words
A solid state color imaging apparatus in accordance with claim 15, wherein said phases of the repetition of the picture elements in the horizontal lines are changed for every horizontal lines which are scanned in sequence.
Claim 19
Dependent Claim
43 words
A solid state color imaging apparatus in accordance claim 16, wherein said color filter comprises stripes of color filter elements of red color for passing red light, green color for passing green light and cyan color for passing lights other than red light.
Claim 20
Dependent Claim
57 words
A solid state color imaging apparatus in accordance with claim 16, wherein said color filter comprises stripes of color filter elements of transparent or translucent for passing lights of all colors, cyan color for passing lights other than red light, green color for passing light of green color, yellow color for passing lights other than blue light.
Claim 21
Dependent Claim
53 words
A solid state color imaging apparatus in accordance with claim 15, wherein said phases of repetition of the stripes of the color filter element in the horizontal lines are changed for every horizontal lines which are scanned in sequence by disposing said stripes of the color filter elements oblique to said horizontal lines.
Claim 22
Dependent Claim
44 words
A solid state color imaging apparatus in accordance with claim 19, wherein said color filter comprises stripes of color filter elements of red color for passing red light, green color for passing green light and cyan color for passing lights other than red light.
Claim 23
Dependent Claim
57 words
A solid state color imaging apparatus in accordance with claim 19, wherein said color filter comprises stripes of color filter elements of transparent or translucent for passing lights of all colors, cyan color for passing lights other than red light, green color for passing light of green color, yellow color for passing lights other than blue light.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-27 | 1987-08-29 | 1988-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-27 | 1991-08-29 | 1992-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-27 | 1995-08-29 | 1996-02-28 | $7700.00 | Window Closed / Lapsed |