US4016598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state camera having plural image sensors
Assignee: Sony Corp
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Filing: 1975-03-26
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Granted: 1977-04-05
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Expires: 1995-03-26
Abstract
Abstract Two charge coupled devices (which will be hereinafter referred to as CCD chips) are employed in a solid state camera system wherein color filters, each consisting of horizontally extended color stripe filter elements, are disposed in front of the respective CCD chips. Object images are projected onto the respective CCD chips through the color filters such that the object image on one CCD chip is shifted by tau H/2 (where tau H is the alignment pitch of picture elements in the direction of horizontal scanning) relative to the object image on the other CCD chip. To read image information from the CCD chips, the read-out timing as between the two chips is different by tau H/2 to compensating for the image displacement of the chips.
Inventors
- 👤 Seisuke Yamanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:05
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/80; H04N23/84; H04N25/00; H04N25/10; H04N25/11
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
191 words
A solid state color camera comprising: a plurality of image sensors, each having a plurality of picture-sensing units spaced apart by an alignment pitch of τ H , a number of color filters, each having color stripe elements extending in a horizontal direction and being aligned vertically to correspond to respective horizontal rows of said image sensors, means for displaying an image simultaneously on each of said image sensors through respective ones of said color filters, means for positions the image on each sensor with a displacment of τ H/N in a given direction with respect to at least one other of said sensors where N equals the number of image sensors in said camera, means coupled to said picture sensing units for sequentially reading said image being displayed on said sensors in said given direction at a given read-out frequency and said reading means producing respective output signals, means associated with said reading means for shifting the read-out phases thereof by 2 π /N , means coupled to said reading means for mixing their respective output signals therefrom, and means for deriving luminance and chrominance signals from said mixing means.
Claim 2
Dependent Claim
191 words
A solid state color camera comprising: a plurality of image sensors, each having a plurality of picture-sensing units spaced apart by an alignment pitch of τ H , a number of color filters, each having color stripe elements extending in a horizontal direction and being aligned vertically to correspond to respective horizontal rows of said image sensors, means for displaying an image simultaneously on each of said image sensors through respective ones of said color filters, means for positions the image on each sensor with a displacment of τ H/N in a given direction with respect to at least one other of said sensors where N equals the number of image sensors in said camera, means coupled to said picture sensing units for sequentially reading said image being displayed on said sensors in said given direction at a given read-out frequency and said reading means producing respective output signals, means associated with said reading means for shifting the read-out phases thereof by 2 π /N , means coupled to said reading means for mixing their respective output signals therefrom, and means for deriving luminance and chrominance signals from said mixing means.
Claim 3
Dependent Claim
22 words
A solid state color camera in accordance with claim 1 further comprising detector means for deriving color signals from said chrominance signal.
Claim 4
Dependent Claim
13 words
A solid state color camera in accordance with claim 2 wherein Nequals 2.
Claim 5
Dependent Claim
32 words
A solid state color camera in accordance with claim 3 further comprising an optical lowpass filter in the incident light path of the object for limitting the bandwidth of particular color components.
Claim 6
Dependent Claim
14 words
A solid state color camera in accordance with claim 3 wherein N equals 3.
Claim 7
Dependent Claim
47 words
A solid state color camera in accordance with claim 2 wherein said chrominance signal deriving means includes time delay means for producing a delay equal to one horizontal scanning period and means for combining the delayed and an undelayed signal to produce the desired chrominance output signals.
References Cited (Backward Citations)
US3777061A
Cited
US3876989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |