US4007488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid-state color imaging apparatus having charge-coupled devices
Assignee: NEC Corp
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Filing: 1976-02-06
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Granted: 1977-02-08
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Expires: 1996-02-06
Abstract
Abstract A color signal imaging apparatus includes a charge-coupled device to convert a light signal to an electrical video signal. The time during which charges are accumulated in the imaging area of the charge-coupled device is made variable so as to enable the ready compensation of the video signal components.
Inventors
- 👤 Masanobu Morishita
- 👤 Hidehiko Inoue
- 👤 Mitsuru Kawasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:37
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/80; H04N23/84
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
128 words
A solid-state color imaging apparatus for producing a color video signal from incident light rays said apparatus comprising means including at least one charge-coupled device having an imaging area for accumulating charges in response to said incident light rays, a storage area for transferring the accumulated charges, and a read-out means for producing an electrical video signal from the transferred charges for producing a video signal; means for producing first and second driving pulses in response to a synchronizing signal, said first driving pulse setting a time period during which said charges are accumulated in said imaging area and said second driving pulse causing said charge transfer; and, means operatively connected to said first driving pulse producing means for controlling said time period of said first driving pulse.
Claim 2
Dependent Claim
128 words
A solid-state color imaging apparatus for producing a color video signal from incident light rays said apparatus comprising means including at least one charge-coupled device having an imaging area for accumulating charges in response to said incident light rays, a storage area for transferring the accumulated charges, and a read-out means for producing an electrical video signal from the transferred charges for producing a video signal; means for producing first and second driving pulses in response to a synchronizing signal, said first driving pulse setting a time period during which said charges are accumulated in said imaging area and said second driving pulse causing said charge transfer; and, means operatively connected to said first driving pulse producing means for controlling said time period of said first driving pulse.
Claim 3
Dependent Claim
68 words
The solid-state color imaging apparatus as claimed in claim 1, wherein said video signal producing means includes a plurality of charge-coupled devices, and further comprising means for separating said incident light rays into a plurality of color components to be applied to said video signal producing means, said controlling means separately controlling the time periods of said first driving pulses for the respective ones of said charge-coupled devices.
Claim 4
Dependent Claim
45 words
The solid-state color imaging apparatus as claimed in claim 1, further comprising means for separating said incident light rays into a plurality of color components on a time-sharing basis, said controlling means controlling said time period of said first driving pulse on a time-sharing basis.
Claim 5
Dependent Claim
54 words
The solid-state color imaging apparatus as claimed in claim 1, in which said first pulse signal producing means comprises a means for producing a gate signal and gating means receiving said gate signal as well as a series of pulses, said controlling means comprising means for selectively varying the width of said gate signal.
Claim 6
Dependent Claim
30 words
The solid state color imaging apparatus of claim 4, in which said gate signal producing means comprises a multivibrator and said gate signal width varying means comprises a variable resistance.
References Cited (Backward Citations)
US2790847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-08 | 1980-08-09 | 1981-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-08 | 1984-08-09 | 1985-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-08 | 1988-08-09 | 1989-02-08 | $7700.00 | Window Closed / Lapsed |