JPS648780A - Dark output correction system - Google Patents

Dark output correction system

Info

Publication number
JPS648780A
JPS648780A JP62164910A JP16491087A JPS648780A JP S648780 A JPS648780 A JP S648780A JP 62164910 A JP62164910 A JP 62164910A JP 16491087 A JP16491087 A JP 16491087A JP S648780 A JPS648780 A JP S648780A
Authority
JP
Japan
Prior art keywords
output
line
photoelectric conversion
conversion element
correction information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62164910A
Other languages
Japanese (ja)
Other versions
JP2913045B2 (en
Inventor
Hiromitsu Tajiri
Chiaki Matsuyama
Yasuo Nishiguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyocera Corp
Original Assignee
Kyocera Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyocera Corp filed Critical Kyocera Corp
Priority to JP62164910A priority Critical patent/JP2913045B2/en
Publication of JPS648780A publication Critical patent/JPS648780A/en
Application granted granted Critical
Publication of JP2913045B2 publication Critical patent/JP2913045B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Picture Signal Circuits (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE:To obtain excellent black/white level ratio by reading correction information stored at picture read and correcting the read output while arithmetic operation is applied between the output of each photoelectric conversion element and the correction information. CONSTITUTION:The operation is switched by a changeover means 23 interposed among lines l1-l1aand l1b. The data is extracted by an extraction circuit 24 in a path of line l0 buffer circuit 22 line l1a by using a dard output for each photoelectric conversion element from a solid-state image pickup device 21 and given and stored in a storage means 25. Arithmetic operation is applied by an arithmetic means 26 between the output of each element obtained in the path of line l0 circuit 22 line l1b and the data of the correction information stored in the means 25 in reading an original actually by the device 21 in the correction operation to eliminate a dark output level for each photoelectric conversion element.
JP62164910A 1987-06-30 1987-06-30 Contact image sensor Expired - Lifetime JP2913045B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62164910A JP2913045B2 (en) 1987-06-30 1987-06-30 Contact image sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62164910A JP2913045B2 (en) 1987-06-30 1987-06-30 Contact image sensor

Publications (2)

Publication Number Publication Date
JPS648780A true JPS648780A (en) 1989-01-12
JP2913045B2 JP2913045B2 (en) 1999-06-28

Family

ID=15802182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62164910A Expired - Lifetime JP2913045B2 (en) 1987-06-30 1987-06-30 Contact image sensor

Country Status (1)

Country Link
JP (1) JP2913045B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018194304A (en) * 2017-05-12 2018-12-06 株式会社島津製作所 Particle counter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52122038A (en) * 1976-04-07 1977-10-13 Toshiba Corp Fixed noise elimination of solid image sensor
JPS5432013A (en) * 1977-08-15 1979-03-09 Nec Corp Picture element correction system for image sensor
JPS5511683A (en) * 1978-07-12 1980-01-26 Nec Corp Sensor correction device
JPS61283271A (en) * 1985-06-07 1986-12-13 Matsushita Electric Ind Co Ltd Original reader
JPS62117473A (en) * 1985-11-18 1987-05-28 Fuji Xerox Co Ltd Dark output correcting circuit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52122038A (en) * 1976-04-07 1977-10-13 Toshiba Corp Fixed noise elimination of solid image sensor
JPS5432013A (en) * 1977-08-15 1979-03-09 Nec Corp Picture element correction system for image sensor
JPS5511683A (en) * 1978-07-12 1980-01-26 Nec Corp Sensor correction device
JPS61283271A (en) * 1985-06-07 1986-12-13 Matsushita Electric Ind Co Ltd Original reader
JPS62117473A (en) * 1985-11-18 1987-05-28 Fuji Xerox Co Ltd Dark output correcting circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018194304A (en) * 2017-05-12 2018-12-06 株式会社島津製作所 Particle counter

Also Published As

Publication number Publication date
JP2913045B2 (en) 1999-06-28

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