JPS639688B2 - - Google Patents

Info

Publication number
JPS639688B2
JPS639688B2 JP56105230A JP10523081A JPS639688B2 JP S639688 B2 JPS639688 B2 JP S639688B2 JP 56105230 A JP56105230 A JP 56105230A JP 10523081 A JP10523081 A JP 10523081A JP S639688 B2 JPS639688 B2 JP S639688B2
Authority
JP
Japan
Prior art keywords
circuit
noise reduction
switching control
output
supplied
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.)
Expired
Application number
JP56105230A
Other languages
English (en)
Japanese (ja)
Other versions
JPS586631A (ja
Inventor
Yoshuki Takizawa
Fumihiko Yokogawa
Yasuo Kominami
Kazuo Watanabe
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 JP56105230A priority Critical patent/JPS586631A/ja
Publication of JPS586631A publication Critical patent/JPS586631A/ja
Publication of JPS639688B2 publication Critical patent/JPS639688B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems

Landscapes

  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
JP56105230A 1981-07-06 1981-07-06 雑音低減回路 Granted JPS586631A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56105230A JPS586631A (ja) 1981-07-06 1981-07-06 雑音低減回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56105230A JPS586631A (ja) 1981-07-06 1981-07-06 雑音低減回路

Publications (2)

Publication Number Publication Date
JPS586631A JPS586631A (ja) 1983-01-14
JPS639688B2 true JPS639688B2 (enExample) 1988-03-01

Family

ID=14401849

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56105230A Granted JPS586631A (ja) 1981-07-06 1981-07-06 雑音低減回路

Country Status (1)

Country Link
JP (1) JPS586631A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5959523A (en) * 1996-10-15 1999-09-28 Abb Power T&D Company Inc. Magnetic core structure

Also Published As

Publication number Publication date
JPS586631A (ja) 1983-01-14

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