JPS6236411B2 - - Google Patents

Info

Publication number
JPS6236411B2
JPS6236411B2 JP56139197A JP13919781A JPS6236411B2 JP S6236411 B2 JPS6236411 B2 JP S6236411B2 JP 56139197 A JP56139197 A JP 56139197A JP 13919781 A JP13919781 A JP 13919781A JP S6236411 B2 JPS6236411 B2 JP S6236411B2
Authority
JP
Japan
Prior art keywords
current
circuit
differential amplifier
signal
operation mode
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
JP56139197A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5840937A (ja
Inventor
Yoshuki Takizawa
Fumihiko Yokogawa
Kazuo Watanabe
Yasuo Kominami
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 JP56139197A priority Critical patent/JPS5840937A/ja
Publication of JPS5840937A publication Critical patent/JPS5840937A/ja
Publication of JPS6236411B2 publication Critical patent/JPS6236411B2/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)
JP56139197A 1981-09-03 1981-09-03 テ−プノイズ低減システム Granted JPS5840937A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56139197A JPS5840937A (ja) 1981-09-03 1981-09-03 テ−プノイズ低減システム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56139197A JPS5840937A (ja) 1981-09-03 1981-09-03 テ−プノイズ低減システム

Publications (2)

Publication Number Publication Date
JPS5840937A JPS5840937A (ja) 1983-03-10
JPS6236411B2 true JPS6236411B2 (enrdf_load_stackoverflow) 1987-08-06

Family

ID=15239811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56139197A Granted JPS5840937A (ja) 1981-09-03 1981-09-03 テ−プノイズ低減システム

Country Status (1)

Country Link
JP (1) JPS5840937A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS5840937A (ja) 1983-03-10

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