JPS57131152A - Automatic gain controlling circuit - Google Patents

Automatic gain controlling circuit

Info

Publication number
JPS57131152A
JPS57131152A JP56015776A JP1577681A JPS57131152A JP S57131152 A JPS57131152 A JP S57131152A JP 56015776 A JP56015776 A JP 56015776A JP 1577681 A JP1577681 A JP 1577681A JP S57131152 A JPS57131152 A JP S57131152A
Authority
JP
Japan
Prior art keywords
signal
amplitude
controlling circuit
signals
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.)
Granted
Application number
JP56015776A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6342992B2 (enrdf_load_stackoverflow
Inventor
Yasutsune Yoshida
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 JP56015776A priority Critical patent/JPS57131152A/ja
Publication of JPS57131152A publication Critical patent/JPS57131152A/ja
Publication of JPS6342992B2 publication Critical patent/JPS6342992B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3809—Amplitude regulation arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Dc Digital Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP56015776A 1981-02-06 1981-02-06 Automatic gain controlling circuit Granted JPS57131152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56015776A JPS57131152A (en) 1981-02-06 1981-02-06 Automatic gain controlling circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56015776A JPS57131152A (en) 1981-02-06 1981-02-06 Automatic gain controlling circuit

Publications (2)

Publication Number Publication Date
JPS57131152A true JPS57131152A (en) 1982-08-13
JPS6342992B2 JPS6342992B2 (enrdf_load_stackoverflow) 1988-08-26

Family

ID=11898210

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56015776A Granted JPS57131152A (en) 1981-02-06 1981-02-06 Automatic gain controlling circuit

Country Status (1)

Country Link
JP (1) JPS57131152A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59182657A (ja) * 1983-03-31 1984-10-17 Fujitsu Ltd 多値復調方式
US4546323A (en) * 1982-08-28 1985-10-08 Nec Corporation Quadrature amplitude demodulator comprising a combination of a full-wave rectifying circuit and binary detectors
US4574246A (en) * 1983-03-16 1986-03-04 Nec Corporation Demodulator with AGC circuit for multi-level quadrature amplitude-modulated carrier wave

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546323A (en) * 1982-08-28 1985-10-08 Nec Corporation Quadrature amplitude demodulator comprising a combination of a full-wave rectifying circuit and binary detectors
US4574246A (en) * 1983-03-16 1986-03-04 Nec Corporation Demodulator with AGC circuit for multi-level quadrature amplitude-modulated carrier wave
JPS59182657A (ja) * 1983-03-31 1984-10-17 Fujitsu Ltd 多値復調方式

Also Published As

Publication number Publication date
JPS6342992B2 (enrdf_load_stackoverflow) 1988-08-26

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