JPS5511683A - Sensor correction device - Google Patents

Sensor correction device

Info

Publication number
JPS5511683A
JPS5511683A JP8551678A JP8551678A JPS5511683A JP S5511683 A JPS5511683 A JP S5511683A JP 8551678 A JP8551678 A JP 8551678A JP 8551678 A JP8551678 A JP 8551678A JP S5511683 A JPS5511683 A JP S5511683A
Authority
JP
Japan
Prior art keywords
memory
sensitivity
output
sensor
corrected
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
JP8551678A
Other languages
Japanese (ja)
Other versions
JPS6135751B2 (en
Inventor
Joji Tajima
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8551678A priority Critical patent/JPS5511683A/en
Publication of JPS5511683A publication Critical patent/JPS5511683A/en
Publication of JPS6135751B2 publication Critical patent/JPS6135751B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

PURPOSE: To obtain a low-cost sensor correction device which features a reduced amount of the memory capacity with a high correction accuracy maintained by using the sensitivity memory and the dark current memory to memorize previously the sensitivity of several image sensors and the dark current respectively, the subtractor circuit and the correction memory each.
CONSTITUTION: The output signal obtained by giving A/D conversion 4 to the output signal of image sensor 2 is supplied to sensor correction device 1 via signal line 101. Device 1 consists of dark signal memory 13 and sensitivity memory 14 to memorize previously the dark signal level and the sensitivity of each sensor element, subtractor circuit 14 to give subtraction to the output of memory 13 based on the A/D conversion output signal, and correction memory 16 to be given addressing by th output signals of both memory 15 and circuit 14 and then to deliver the corrected signals. Memory 13 and 15 receive the access via address bus 102 and based on the scanning of the sensor and deliver the output with 4 bits each. The unevenness of the dark current is corrected through circuit 14, and the sensitivity is corrected through memory 15 to be supplied to memory 16. Then the corrected signals are delivered from memory 16 and through output line 103.
COPYRIGHT: (C)1980,JPO&Japio
JP8551678A 1978-07-12 1978-07-12 Sensor correction device Granted JPS5511683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8551678A JPS5511683A (en) 1978-07-12 1978-07-12 Sensor correction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8551678A JPS5511683A (en) 1978-07-12 1978-07-12 Sensor correction device

Publications (2)

Publication Number Publication Date
JPS5511683A true JPS5511683A (en) 1980-01-26
JPS6135751B2 JPS6135751B2 (en) 1986-08-14

Family

ID=13861067

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8551678A Granted JPS5511683A (en) 1978-07-12 1978-07-12 Sensor correction device

Country Status (1)

Country Link
JP (1) JPS5511683A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919483A (en) * 1982-07-24 1984-01-31 Sankyo Seiki Mfg Co Ltd Dark current compensating method of solid-state image pickup element
JPS5994040A (en) * 1982-11-22 1984-05-30 Konishiroku Photo Ind Co Ltd Densitometer
JPS60180377A (en) * 1984-02-28 1985-09-14 Dainippon Screen Mfg Co Ltd Picture signal correcting method in picture input device
JPS60189372A (en) * 1984-03-08 1985-09-26 Dainippon Screen Mfg Co Ltd Picture input device
JPS648780A (en) * 1987-06-30 1989-01-12 Kyocera Corp Dark output correction system
JPS6439176A (en) * 1987-08-05 1989-02-09 Olympus Optical Co Solid state image pickup device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4979733A (en) * 1972-11-13 1974-08-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4979733A (en) * 1972-11-13 1974-08-01

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919483A (en) * 1982-07-24 1984-01-31 Sankyo Seiki Mfg Co Ltd Dark current compensating method of solid-state image pickup element
JPS6359632B2 (en) * 1982-07-24 1988-11-21
JPS5994040A (en) * 1982-11-22 1984-05-30 Konishiroku Photo Ind Co Ltd Densitometer
JPS60180377A (en) * 1984-02-28 1985-09-14 Dainippon Screen Mfg Co Ltd Picture signal correcting method in picture input device
JPS60189372A (en) * 1984-03-08 1985-09-26 Dainippon Screen Mfg Co Ltd Picture input device
JPS648780A (en) * 1987-06-30 1989-01-12 Kyocera Corp Dark output correction system
JPS6439176A (en) * 1987-08-05 1989-02-09 Olympus Optical Co Solid state image pickup device

Also Published As

Publication number Publication date
JPS6135751B2 (en) 1986-08-14

Similar Documents

Publication Publication Date Title
US4200934A (en) Circuit arrangement for correcting digital signals
JPS57111421A (en) Measuring device of multielement sensor
JPS5511683A (en) Sensor correction device
JPS5456717A (en) Solid state pickup device
JPS57120157A (en) Method and device for generation of waste time
JPS54112629A (en) Exposure control value display device
JPS5522130A (en) Compensator for sensor
JPS54922A (en) Correction method of video signal
JPS5573180A (en) Picture tracking system
JPS57164481A (en) Storage device
JPS55163988A (en) Digital convergence unit
JPS53140961A (en) Output method for digital/analog
JPS55154655A (en) Picture processing system for medical use
JPS5474622A (en) Shading correction unit
JPS5624567A (en) Humidity measuring system
JPS5582540A (en) Analog digital conversion unit
JPS575467A (en) Output correcting device for plurality of element sensors
JPS57119565A (en) Picture-signal correction system
JPS55147322A (en) Indicating system of average temperature
JPS5570147A (en) Automatic broadcasting device
JPS54122923A (en) Compensation method for signal
JPS5735476A (en) Original reading section
JPS5521685A (en) Solidstate pick up unit
JPS6439878A (en) Photoelectric converting device
JPS5386236A (en) Error corrector circuit in digital measuring instrument