JPS5446404A - Noise reduction device - Google Patents

Noise reduction device

Info

Publication number
JPS5446404A
JPS5446404A JP11407077A JP11407077A JPS5446404A JP S5446404 A JPS5446404 A JP S5446404A JP 11407077 A JP11407077 A JP 11407077A JP 11407077 A JP11407077 A JP 11407077A JP S5446404 A JPS5446404 A JP S5446404A
Authority
JP
Japan
Prior art keywords
band
output
bpf26
divided
bpf27
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
JP11407077A
Other languages
English (en)
Inventor
Tetsuo Shimizu
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP11407077A priority Critical patent/JPS5446404A/ja
Publication of JPS5446404A publication Critical patent/JPS5446404A/ja
Pending 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
JP11407077A 1977-09-20 1977-09-20 Noise reduction device Pending JPS5446404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11407077A JPS5446404A (en) 1977-09-20 1977-09-20 Noise reduction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11407077A JPS5446404A (en) 1977-09-20 1977-09-20 Noise reduction device

Publications (1)

Publication Number Publication Date
JPS5446404A true JPS5446404A (en) 1979-04-12

Family

ID=14628277

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11407077A Pending JPS5446404A (en) 1977-09-20 1977-09-20 Noise reduction device

Country Status (1)

Country Link
JP (1) JPS5446404A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57190478A (en) * 1981-05-18 1982-11-24 Hitachi Ltd Sound noise suppressing circuit
JPS57190477A (en) * 1981-05-18 1982-11-24 Hitachi Ltd Noise suppressing circuit
JPS5952937A (ja) * 1982-09-20 1984-03-27 Pioneer Electronic Corp 多重伝送システム
JPS6427003A (en) * 1988-07-08 1989-01-30 Hitachi Ltd Reproducing device for found signal

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57190478A (en) * 1981-05-18 1982-11-24 Hitachi Ltd Sound noise suppressing circuit
JPS57190477A (en) * 1981-05-18 1982-11-24 Hitachi Ltd Noise suppressing circuit
JPH0125128B2 (ja) * 1981-05-18 1989-05-16 Hitachi Ltd
JPH0130207B2 (ja) * 1981-05-18 1989-06-16 Hitachi Ltd
JPS5952937A (ja) * 1982-09-20 1984-03-27 Pioneer Electronic Corp 多重伝送システム
JPS6427003A (en) * 1988-07-08 1989-01-30 Hitachi Ltd Reproducing device for found signal
JPH022201B2 (ja) * 1988-07-08 1990-01-17 Hitachi Ltd

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