JPS5680968A - Noise elimination system of solid-state image pickup device - Google Patents

Noise elimination system of solid-state image pickup device

Info

Publication number
JPS5680968A
JPS5680968A JP15796579A JP15796579A JPS5680968A JP S5680968 A JPS5680968 A JP S5680968A JP 15796579 A JP15796579 A JP 15796579A JP 15796579 A JP15796579 A JP 15796579A JP S5680968 A JPS5680968 A JP S5680968A
Authority
JP
Japan
Prior art keywords
pulses
circuit
video signal
period
solid
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
JP15796579A
Other languages
Japanese (ja)
Other versions
JPS605102B2 (en
Inventor
Hiroyuki Yamamoto
Yukio Endo
Mineo Iwazawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP54157965A priority Critical patent/JPS605102B2/en
Publication of JPS5680968A publication Critical patent/JPS5680968A/en
Publication of JPS605102B2 publication Critical patent/JPS605102B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/67—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

PURPOSE:To prevent a fixed noise from entering an effective video signal part by generating the original signal pulse of a transfer pulse during the ineffective period of a video signal and by stopping it in the effective period of the video signal. CONSTITUTION:Pulses generated by 24MHz oscillator 10 are applied to four-phase pulse generating circuit 11, 1/20 frequency dividing circuit 12 and 1360-scale counter 13. On the other hand, horizontal blanking pulses HBP and vertical blanking pulses VBP are applied to OR circuit 14 and by an obtained signal, frequency dividing circuit 12 is driven to obtain pulses of 1.2MHz generated only in the blanking period. Further, 1024-scale counter 15 and FF16 generate frame transfer operation regulation pulses on the basis of VBP and pulses of 1.2MHz and the output of counter 13 and HBP are applied to FF18 to obtain line-shift operation regulation pulses. Both regulation pulses are applied to OR circuit 19, whose output is applied to pulse generating circuit 11.
JP54157965A 1979-12-07 1979-12-07 Noise removal method for solid-state imaging devices Expired JPS605102B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54157965A JPS605102B2 (en) 1979-12-07 1979-12-07 Noise removal method for solid-state imaging devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54157965A JPS605102B2 (en) 1979-12-07 1979-12-07 Noise removal method for solid-state imaging devices

Publications (2)

Publication Number Publication Date
JPS5680968A true JPS5680968A (en) 1981-07-02
JPS605102B2 JPS605102B2 (en) 1985-02-08

Family

ID=15661309

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54157965A Expired JPS605102B2 (en) 1979-12-07 1979-12-07 Noise removal method for solid-state imaging devices

Country Status (1)

Country Link
JP (1) JPS605102B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56119576A (en) * 1980-02-25 1981-09-19 Hitachi Ltd Pulse generating circuit
JPS58161365U (en) * 1982-04-20 1983-10-27 シャープ株式会社 Solid-state image sensor readout device
JPS59104870A (en) * 1982-12-07 1984-06-16 Matsushita Electric Ind Co Ltd Driving circuit of solid-state image pickup device
JPS60123172A (en) * 1983-12-06 1985-07-01 Canon Inc Image pickup device
JPS60227570A (en) * 1984-04-25 1985-11-12 Matsushita Electric Ind Co Ltd Pulse generating circuit for driving solid-state image pickup element
JPS61108268A (en) * 1984-10-31 1986-05-26 Matsushita Electric Ind Co Ltd Solid-state image pickup device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56119576A (en) * 1980-02-25 1981-09-19 Hitachi Ltd Pulse generating circuit
JPH0153543B2 (en) * 1980-02-25 1989-11-14 Hitachi Ltd
JPS58161365U (en) * 1982-04-20 1983-10-27 シャープ株式会社 Solid-state image sensor readout device
JPS59104870A (en) * 1982-12-07 1984-06-16 Matsushita Electric Ind Co Ltd Driving circuit of solid-state image pickup device
JPS60123172A (en) * 1983-12-06 1985-07-01 Canon Inc Image pickup device
JPH0137071B2 (en) * 1983-12-06 1989-08-03 Canon Kk
JPS60227570A (en) * 1984-04-25 1985-11-12 Matsushita Electric Ind Co Ltd Pulse generating circuit for driving solid-state image pickup element
JPS61108268A (en) * 1984-10-31 1986-05-26 Matsushita Electric Ind Co Ltd Solid-state image pickup device

Also Published As

Publication number Publication date
JPS605102B2 (en) 1985-02-08

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