US4831454A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image sensor device having plural photoelectric converting elements
Assignee: Canon Inc
•
Filing: 1987-03-05
•
Granted: 1989-05-16
•
Expires: 2007-03-05
Abstract
Abstract An image sensor device provided with a linear array of photoelectric converting elements each having a capacitor on a control electrode area of a semiconductor transistor is disclosed. The image sensor device is provided with means for sequentially selecting the photoelectric converting elements, and the potential of the control electrode area of the selected photoelectric converting element is controlled through said capacitor, thereby accumulating the carriers generated by photoexcitation in said control electrode area and reading a voltage generated according to the amount of carrier accumulation or dissipating thus accumulated carriers.
Inventors
- 👤 Nobuyoshi Tanaka
- 👤 Toshiji Suzuki
- 👤 Tsuneo Suzuki
- 👤 Masaharu Ozaki
- 👤 Shigetoshi Sugawa
- 👤 Mahito Shinohara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:58
CPC Classifications
H; H10; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/197; H04; H04N; H04N25/00; H04N25/60; H04N25/62; H04N25/621; H04N25/622; H04N25/625; H04N25/70; H04N25/701; H04N25/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
An image sensor device comprising a linear array of photoelectric converting elements each having a semiconductive transistor with a control electrode area and having a capacitor on said control electrode area, and selector means for sequentially selecting said photoelectric converting elements, wherein the potential of the control electrode area of a thus selected photoelectric converting element is controlled through said capacitor of the selected photoelectric converting element, thereby accumulating carriers generated by photoexcitation in said control electrode area and reading a voltage generated according to the amount of said accumulation or dissipating the thus accumulated carriers; said selector means comprising: a shift register having readout terminals provided corresponding to respective photoelectric converting elements; first switching means, for refresh, connected to said capacitor of a corresponding photoelectric converting element and to a refresh terminal; and second switching means, for refresh, connected to said control electrode area and said capacitor of a corresponding photoelectric converting element.
Claim 2
Dependent Claim
154 words
An image sensor device comprising a linear array of photoelectric converting elements each having a semiconductive transistor with a control electrode area and having a capacitor on said control electrode area, and selector means for sequentially selecting said photoelectric converting elements, wherein the potential of the control electrode area of a thus selected photoelectric converting element is controlled through said capacitor of the selected photoelectric converting element, thereby accumulating carriers generated by photoexcitation in said control electrode area and reading a voltage generated according to the amount of said accumulation or dissipating the thus accumulated carriers; said selector means comprising: a shift register having readout terminals provided corresponding to respective photoelectric converting elements; first switching means, for refresh, connected to said capacitor of a corresponding photoelectric converting element and to a refresh terminal; and second switching means, for refresh, connected to said control electrode area and said capacitor of a corresponding photoelectric converting element.
References Cited (Backward Citations)
US4340909A
Cited
US4380755A
Cited
US4531156A
Cited
US4571624A
Cited
US4589003A
Cited
US4686554A
Cited
US4731665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |