US5283428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric converting device and information processing apparatus employing the same
Assignee: Canon Inc
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Filing: 1991-11-25
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Granted: 1994-02-01
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Expires: 2011-11-25
Abstract
Abstract A photoelectric converting device provided with a control electrode area of a semiconductor of a first conductive type and at least two main electrode areas of a semiconductor of a second conductive type different from the first conductive type, and capable of accumulating photo-generated carriers in the control electrode area. The control electrode area becomes substantially depleted at the resetting operation.
Inventors
- 👤 Masakazu Morishita
- 👤 Seiji Hashimoto
- 👤 Shigetoshi Sugawa
- 👤 Hayao Ohzu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:51
CPC Classifications
H; H10; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/197
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
62 words
A photoelectric converting device provided with a control electrode area of a semiconductor of a first conductive type and at least two main electrode areas of a semiconductor of a second conductive type different from said first conductive type, and capable of accumulating photo-generated carriers in said control electrode area; wherein said control electrode area become substantially depleted at the resetting operation.
Claim 2
Dependent Claim
62 words
A photoelectric converting device provided with a control electrode area of a semiconductor of a first conductive type and at least two main electrode areas of a semiconductor of a second conductive type different from said first conductive type, and capable of accumulating photo-generated carriers in said control electrode area; wherein said control electrode area become substantially depleted at the resetting operation.
Claim 3
Dependent Claim
52 words
A photoelectric converting device according to claim 1, wherein one of said main electrode areas is connected to an output circuit including a capacitative load, and further comprising switch means for switching one of said main electrode areas between a state electrically connected to a reference voltage source and a floating state.
Claim 4
Dependent Claim
93 words
A photoelectric converting device provided with a photoelectric converting cell including a control electrode area of a first conductive type capable of accumulating carriers generated by light energy, and first and second main electrode areas of a second conductive type different from said first conductive type, comprising: resetting means for effecting a first resetting for maintaining said first main electrode area at a high impedance state thereby substantially depleting said control electrode area, and, after said first resetting, a second resetting for shifting said first main electrode area to a low impedance state.
Claim 5
Dependent Claim
93 words
A photoelectric converting device provided with a photoelectric converting cell including a control electrode area of a first conductive type capable of accumulating carriers generated by light energy, and first and second main electrode areas of a second conductive type different from said first conductive type, comprising: resetting means for effecting a first resetting for maintaining said first main electrode area at a high impedance state thereby substantially depleting said control electrode area, and, after said first resetting, a second resetting for shifting said first main electrode area to a low impedance state.
Claim 6
Dependent Claim
120 words
A photoelectric converting device, comprising: a first main electrode area including a first semiconductive area of a semiconductor of a first conductive type, and a second semiconductive area of a semiconductor of said first conductive type with a lower resistnace than in said first semiconductive area; a control electrode area of a semiconductor of a second conductive type different from said first conductive type, positioned adjacent to said second semiconductive area; and a second main electrode area of a semiconductor of the first conductive type, positioned adjacent to said control electrode area; wherein said control electrode area has an impurity concentration and a layer thickness enough for causing said control electrode area to be substantially depleted at the resetting operation.
Claim 7
Dependent Claim
120 words
A photoelectric converting device, comprising: a first main electrode area including a first semiconductive area of a semiconductor of a first conductive type, and a second semiconductive area of a semiconductor of said first conductive type with a lower resistnace than in said first semiconductive area; a control electrode area of a semiconductor of a second conductive type different from said first conductive type, positioned adjacent to said second semiconductive area; and a second main electrode area of a semiconductor of the first conductive type, positioned adjacent to said control electrode area; wherein said control electrode area has an impurity concentration and a layer thickness enough for causing said control electrode area to be substantially depleted at the resetting operation.
Claim 8
Dependent Claim
67 words
A photoelectric converting device provided with a control electrode area of a semiconductor of a frist conductive type, and at least two main electrode areas of a semiconductor of a second conductive type different from said first conductive type, and capable of accumulating photo-generated carriers in said control electrode area, comprising: a charge-coupled device for transferring the charge in said control electrode area for the setting operation.
Claim 9
Dependent Claim
67 words
A photoelectric converting device provided with a control electrode area of a semiconductor of a frist conductive type, and at least two main electrode areas of a semiconductor of a second conductive type different from said first conductive type, and capable of accumulating photo-generated carriers in said control electrode area, comprising: a charge-coupled device for transferring the charge in said control electrode area for the setting operation.
Claim 10
Dependent Claim
25 words
An information processing apparatus comprising the photoelectric converting device according to claim 1, a light source, and an optical system arranged on a support member.
Claim 11
Dependent Claim
38 words
An information processing apparatus comprising: image reading means including the photoelectric converting device according to claim 1, a light source and an optical system; and recording means for recording the image information read by said image reading means.
Claim 12
Dependent Claim
54 words
An information processing apparatus comprising: image reading means including the photoelectric converting device according to claim 1, a light source and an optical system; and recording means for recording the image information read by said image reading means; wherein said recording means is an ink jet recording head for discharging ink, utilizing thermal energy.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-01-31 | 1997-08-02 | 1998-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-31 | 2001-08-02 | 2002-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-31 | 2005-08-02 | 2006-02-01 | $7700.00 | Window Closed / Lapsed |