EP0232593A2
Expired / Lapsed
EP
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Photoelectric transducer apparatus
Assignee: Canon Inc
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Filing: 1986-11-14
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Granted: —
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Expires: 2006-11-14
Abstract
Abstract In a photoelectric transducer apparatus having a plurality of photoelectric transducer elements each having a capacitor electrode formed on a control electrode of a corresponding semiconductor transistor, the apparatus being adapted to sequentially select each element in units of lines, to control a potential of the control electrode of the selected photoelectric transducer element through the capacitor electrode, to store carriers in the control electrode region, and to read out a signal component corresponding to the amount of charge, the apparatus includes: optical information storing means for storing optical information read out from the photoelectric transducer element; and dark voltage storing means for storing a voltage corresponding to a dark voltage read out from the photoelectric transducer element, and actual optical information stored in the optical information storing means and information corresponding to the dark voltage component stored in the dark voltage storing means are simultaneously read out onto different information output lines.
Inventors
- 👤 Hayao Ohzu
- 👤 Toshiji Suzuki
- 👤 Akira Ishizaki
- 👤 Nobuyoshi Tanaka
- 👤 Shigetoshi Sugawa
- 👤 Seiji Hashimoto
- 👤 Tadanori Harada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 10:11
CPC Classifications
H; H04; H04N; H04N25/00; H04N25/70; H04N25/76; H04N25/60; H04N25/62; H04N25/621; H04N25/63; H04N25/78
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
43 words
A photoelectric transducer apparatus comprising: a plurality of photoelectric transducer cells; a signal readout line for reading out signals from said plurality of photoelectric transducer cells; and a plurality of capacitors for selectively storing the signals read out through said signal readout line.
Claim 2
Dependent Claim
43 words
A photoelectric transducer apparatus comprising: a plurality of photoelectric transducer cells; a signal readout line for reading out signals from said plurality of photoelectric transducer cells; and a plurality of capacitors for selectively storing the signals read out through said signal readout line.
Claim 3
Dependent Claim
48 words
An apparatus according to Claim 1, wherein said readout line includes a first readout line to be commonly connected to said plurality of capacitors, and a second readout line to be connected to said plurality of capacitors, said second readout line being independent of said first readout line.
Claim 4
Dependent Claim
24 words
An apparatus according to Claim 2, wherein said capacitors are able to be connected to corresponding photoelectric transducer cells through said second readout line.
Claim 5
Dependent Claim
21 words
An apparatus according to Claim 3, further comprising second switching means arranged between said capacitors and said corresponding photoelectric transducer cells.
Claim 6
Dependent Claim
20 words
An apparatus according to Claim 3, further comprising first switching means arranged between said first readout line and said capacitors.
Claim 7
Dependent Claim
19 words
An apparatus according to Claim 1, wherein said capacitors comprise a plurality of capacitors for each photoelectric transducer cell.
Claim 8
Dependent Claim
29 words
An apparatus according to Claim 6, wherein said plurality of capacitors for each photoelectric transducer cell store signals at different operation timings of said plurality of photoelectric transducer cells.
Claim 9
Dependent Claim
19 words
An apparatus according to Claim 7, further comprising control means for selectively shielding said plurality of photoelectric transducer cells.
Claim 10
Dependent Claim
35 words
An apparatus according to Claim 8, wherein said control means causes different capacitors to store a signal formed in a light-shielding state and a signal formed in a non-light-shielding state in each photoelectric transducer cell.
Claim 11
Dependent Claim
19 words
An apparatus according to Claim 1, further comprising arithmetic means for calculating the signals from said plurality of capacitors.
Claim 12
Dependent Claim
14 words
An apparatus according to Claim 10, wherein said arithmetic means comprises a differential amplifier.
Claim 13
Dependent Claim
150 words
A photoelectric transducer apparatus having a plurality of photoelectric transducer elements each having a capacitor electrode formed on a control electrode of a corresponding semiconductor transistor, said apparatus being adapted to sequentially select each element in units of lines, to control a potential of said control electrode of said selected photoelectric transducer element through said capacitor electrode, to store carriers in said control electrode region, and to read out a signal component corresponding to the amount of charge, comprising: optical information storing means for storing optical information read out from said photoelectric transducer element; and dark voltage storing means for storing a voltage corresponding to a dark voltage read out from said photoelectric transducer element, wherein actual optical information stored in said optical information storing means and information corresponding to the dark voltage component stored in said dark voltage storing means are simultaneously read out onto different information output lines.
Claim 14
Dependent Claim
150 words
A photoelectric transducer apparatus having a plurality of photoelectric transducer elements each having a capacitor electrode formed on a control electrode of a corresponding semiconductor transistor, said apparatus being adapted to sequentially select each element in units of lines, to control a potential of said control electrode of said selected photoelectric transducer element through said capacitor electrode, to store carriers in said control electrode region, and to read out a signal component corresponding to the amount of charge, comprising: optical information storing means for storing optical information read out from said photoelectric transducer element; and dark voltage storing means for storing a voltage corresponding to a dark voltage read out from said photoelectric transducer element, wherein actual optical information stored in said optical information storing means and information corresponding to the dark voltage component stored in said dark voltage storing means are simultaneously read out onto different information output lines.
Claim 15
Dependent Claim
19 words
An apparatus according to Claim 12, further including arithmetic means for calculating the signals on said information output lines.
Claim 16
Dependent Claim
14 words
An apparatus according to Claim 13, wherein said arithmetic means includes a differential amplifier.
Claim 17
Dependent Claim
79 words
A photoelectric transducer apparatus including: (a) a photoelectric transducer cell for forming an electric signal in response to incident light; (b) a readout signal line for reading out the electrical signal from said photoelectric transducer cell; (c) storing means, arranged midway along said signal line, for temporarily storing the electrical signal from said photoelectric transducer cell; and (d) switching means, arranged between said storing means and said signal line, for selectively disconnecting said storing means from said signal line.
Claim 18
Dependent Claim
79 words
A photoelectric transducer apparatus including: (a) a photoelectric transducer cell for forming an electric signal in response to incident light; (b) a readout signal line for reading out the electrical signal from said photoelectric transducer cell; (c) storing means, arranged midway along said signal line, for temporarily storing the electrical signal from said photoelectric transducer cell; and (d) switching means, arranged between said storing means and said signal line, for selectively disconnecting said storing means from said signal line.
Claim 19
Dependent Claim
41 words
A photoelectric transducer apparatus for outputting a readout signal from a photoelectric transducer element through an amplifier after the readout signal is temporarily stored in said storing means, comprising switching means for properly applying a bias voltage to said storing means.
Claim 20
Dependent Claim
41 words
A photoelectric transducer apparatus for outputting a readout signal from a photoelectric transducer element through an amplifier after the readout signal is temporarily stored in said storing means, comprising switching means for properly applying a bias voltage to said storing means.
Claim 21
Dependent Claim
31 words
An apparatus according to Claim 16, wherein a reset potential of an input terminal of said amplifier is set to be substantially equal to a bias potential of said storing means.
Claim 22
Dependent Claim
13 words
An apparatus according to Claim 16, wherein said storing means includes a capacitor.
References Cited (Backward Citations)
No citation records indexed.
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