JPS5437403A - Automatic gain control method for light receiving circuit - Google Patents

Automatic gain control method for light receiving circuit

Info

Publication number
JPS5437403A
JPS5437403A JP10342877A JP10342877A JPS5437403A JP S5437403 A JPS5437403 A JP S5437403A JP 10342877 A JP10342877 A JP 10342877A JP 10342877 A JP10342877 A JP 10342877A JP S5437403 A JPS5437403 A JP S5437403A
Authority
JP
Japan
Prior art keywords
receiving circuit
control method
light receiving
gain control
automatic 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
JP10342877A
Other languages
Japanese (ja)
Inventor
Koichi Asatani
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP10342877A priority Critical patent/JPS5437403A/en
Publication of JPS5437403A publication Critical patent/JPS5437403A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3084—Automatic control in amplifiers having semiconductor devices in receivers or transmitters for electromagnetic waves other than radiowaves, e.g. lightwaves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/66—Non-coherent receivers, e.g. using direct detection
    • H04B10/69—Electrical arrangements in the receiver
    • H04B10/691—Arrangements for optimizing the photodetector in the receiver
    • H04B10/6911—Photodiode bias control, e.g. for compensating temperature variations

Abstract

PURPOSE:To stabilize the output level of the receiving circuit by detecting the peak level of the output obtained by amplifying the optical signal detected and converted into the electric signal and then feeding the electric signal back to the bias circuit of the optical detector as well as to the amplifier.
JP10342877A 1977-08-29 1977-08-29 Automatic gain control method for light receiving circuit Pending JPS5437403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10342877A JPS5437403A (en) 1977-08-29 1977-08-29 Automatic gain control method for light receiving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10342877A JPS5437403A (en) 1977-08-29 1977-08-29 Automatic gain control method for light receiving circuit

Publications (1)

Publication Number Publication Date
JPS5437403A true JPS5437403A (en) 1979-03-19

Family

ID=14353757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10342877A Pending JPS5437403A (en) 1977-08-29 1977-08-29 Automatic gain control method for light receiving circuit

Country Status (1)

Country Link
JP (1) JPS5437403A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858339A (en) * 1981-09-30 1983-04-06 Caterpillar Mitsubishi Ltd Bucket type lake
JPS58143646A (en) * 1982-02-19 1983-08-26 Fujitsu Ltd Automatic gain controller
JPS60126545U (en) * 1984-01-31 1985-08-26 新キャタピラ−三菱株式会社 Bucket device with presser frame
JPS60173225A (en) * 1984-02-18 1985-09-06 Katsunori Tanada Device serving as both for soil scooping bucket and long object holder
JPS60175634A (en) * 1984-02-23 1985-09-09 Katsunori Tanada Bucket device for scooping earth combined with long object grasping device
JPS60261835A (en) * 1984-06-07 1985-12-25 Katsunori Tanada Bucket device for scooping-up soil

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4991655A (en) * 1973-01-05 1974-09-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4991655A (en) * 1973-01-05 1974-09-02

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858339A (en) * 1981-09-30 1983-04-06 Caterpillar Mitsubishi Ltd Bucket type lake
JPS6317972B2 (en) * 1981-09-30 1988-04-15 Shin Kyatapiraa Mitsubishi Kk
JPS58143646A (en) * 1982-02-19 1983-08-26 Fujitsu Ltd Automatic gain controller
JPS60126545U (en) * 1984-01-31 1985-08-26 新キャタピラ−三菱株式会社 Bucket device with presser frame
JPH0336594Y2 (en) * 1984-01-31 1991-08-02
JPS60173225A (en) * 1984-02-18 1985-09-06 Katsunori Tanada Device serving as both for soil scooping bucket and long object holder
JPH047410B2 (en) * 1984-02-18 1992-02-10 Katsunori Tanada
JPS60175634A (en) * 1984-02-23 1985-09-09 Katsunori Tanada Bucket device for scooping earth combined with long object grasping device
JPS60261835A (en) * 1984-06-07 1985-12-25 Katsunori Tanada Bucket device for scooping-up soil
JPH0412334B2 (en) * 1984-06-07 1992-03-04 Katsunori Tanada

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