JPS5643833A - Switching circuit for complementary characteristic - Google Patents

Switching circuit for complementary characteristic

Info

Publication number
JPS5643833A
JPS5643833A JP11873579A JP11873579A JPS5643833A JP S5643833 A JPS5643833 A JP S5643833A JP 11873579 A JP11873579 A JP 11873579A JP 11873579 A JP11873579 A JP 11873579A JP S5643833 A JPS5643833 A JP S5643833A
Authority
JP
Japan
Prior art keywords
circuit
output terminal
terminal
output signal
amplifier
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
JP11873579A
Other languages
Japanese (ja)
Other versions
JPS5939932B2 (en
Inventor
Tatsuro Shirai
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP11873579A priority Critical patent/JPS5939932B2/en
Priority to DE19803034077 priority patent/DE3034077C2/en
Priority to GB8029691A priority patent/GB2059227B/en
Publication of JPS5643833A publication Critical patent/JPS5643833A/en
Publication of JPS5939932B2 publication Critical patent/JPS5939932B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H04B1/64—Volume compression or expansion arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Electronic Switches (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE: To obtain complementary characteristics easily by connecting a transfer characteristic determining circuit to the output terminal of an operational amplifier, by providing a switching method between the output terminal and inverted input terminal, and by leading complementary characteristics out from each terminal through the switching of the switching method.
CONSTITUTION: With switch circuit 9 closed, 100% feedback is provided to operational amplifier 4 and from output terminal 2, an output signal with characteristics F is obtained. With circuit 9 opened, transfer characteristic determining circuit 5 is connected to the negative feedback path of amplifier 4 via resistance 10, and consequently characteristics of an output signal obtained from output terminal 3 are shown by the expression (A0 is the bare gain of amplifier 4.), providing complementary characteristics to an output signal when circuit 9 is closed.
COPYRIGHT: (C)1981,JPO&Japio
JP11873579A 1979-09-18 1979-09-18 Complementary characteristic switching circuit Expired JPS5939932B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP11873579A JPS5939932B2 (en) 1979-09-18 1979-09-18 Complementary characteristic switching circuit
DE19803034077 DE3034077C2 (en) 1979-09-18 1980-09-10 Circuit arrangement for optionally impressing a predetermined transmission characteristic on an incoming signal
GB8029691A GB2059227B (en) 1979-09-18 1980-09-15 Complementary characteristics switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11873579A JPS5939932B2 (en) 1979-09-18 1979-09-18 Complementary characteristic switching circuit

Publications (2)

Publication Number Publication Date
JPS5643833A true JPS5643833A (en) 1981-04-22
JPS5939932B2 JPS5939932B2 (en) 1984-09-27

Family

ID=14743768

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11873579A Expired JPS5939932B2 (en) 1979-09-18 1979-09-18 Complementary characteristic switching circuit

Country Status (3)

Country Link
JP (1) JPS5939932B2 (en)
DE (1) DE3034077C2 (en)
GB (1) GB2059227B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60172831A (en) * 1984-02-13 1985-09-06 Nippon Telegr & Teleph Corp <Ntt> Syllabic compander
US5121080A (en) * 1990-12-21 1992-06-09 Crystal Semiconductor Corporation Amplifier with controlled output impedance
US5585763A (en) * 1995-03-30 1996-12-17 Crystal Semiconductor Corporation Controlled impedance amplifier

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2744249B2 (en) * 1977-10-01 1980-01-31 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Circuit arrangement for optional dynamic compression or expansion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60172831A (en) * 1984-02-13 1985-09-06 Nippon Telegr & Teleph Corp <Ntt> Syllabic compander
US5121080A (en) * 1990-12-21 1992-06-09 Crystal Semiconductor Corporation Amplifier with controlled output impedance
US5585763A (en) * 1995-03-30 1996-12-17 Crystal Semiconductor Corporation Controlled impedance amplifier

Also Published As

Publication number Publication date
JPS5939932B2 (en) 1984-09-27
GB2059227A (en) 1981-04-15
GB2059227B (en) 1983-12-14
DE3034077C2 (en) 1983-05-05
DE3034077A1 (en) 1981-03-19

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