JPS5370480A - Photo agc system - Google Patents

Photo agc system

Info

Publication number
JPS5370480A
JPS5370480A JP14561776A JP14561776A JPS5370480A JP S5370480 A JPS5370480 A JP S5370480A JP 14561776 A JP14561776 A JP 14561776A JP 14561776 A JP14561776 A JP 14561776A JP S5370480 A JPS5370480 A JP S5370480A
Authority
JP
Japan
Prior art keywords
photo
agc system
agc
apd
gain
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.)
Pending
Application number
JP14561776A
Other languages
Japanese (ja)
Inventor
Masayori Yamamura
Kiichi Yamashita
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14561776A priority Critical patent/JPS5370480A/en
Publication of JPS5370480A publication Critical patent/JPS5370480A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To perform AGC with the characteristics of an APD when a receiving level is low and by controlling the gain of an amplifier when it is high and achieve the improvement in S/N.
JP14561776A 1976-12-06 1976-12-06 Photo agc system Pending JPS5370480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14561776A JPS5370480A (en) 1976-12-06 1976-12-06 Photo agc system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14561776A JPS5370480A (en) 1976-12-06 1976-12-06 Photo agc system

Publications (1)

Publication Number Publication Date
JPS5370480A true JPS5370480A (en) 1978-06-22

Family

ID=15389162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14561776A Pending JPS5370480A (en) 1976-12-06 1976-12-06 Photo agc system

Country Status (1)

Country Link
JP (1) JPS5370480A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5776946A (en) * 1980-10-30 1982-05-14 Hitachi Ltd Automatic gain control system
WO2019073705A1 (en) * 2017-10-12 2019-04-18 ソニーセミコンダクタソリューションズ株式会社 Solid-state imaging element and electronic device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5776946A (en) * 1980-10-30 1982-05-14 Hitachi Ltd Automatic gain control system
WO2019073705A1 (en) * 2017-10-12 2019-04-18 ソニーセミコンダクタソリューションズ株式会社 Solid-state imaging element and electronic device
US11533445B2 (en) 2017-10-12 2022-12-20 Sony Semiconductor Solutions Corporation Solid-state image sensor and electronic device
US11818481B2 (en) 2017-10-12 2023-11-14 Sony Semiconductor Solutions Corporation Solid-state image sensor and electronic device
US12207008B2 (en) 2017-10-12 2025-01-21 Sony Semiconductor Solutions Corporation Solid-state image sensor and electronic device

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