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AU545820B2 - Noise reduction circuit - Google Patents

Noise reduction circuit

Info

Publication number
AU545820B2
AU545820B2 AU74655/81A AU7465581A AU545820B2 AU 545820 B2 AU545820 B2 AU 545820B2 AU 74655/81 A AU74655/81 A AU 74655/81A AU 7465581 A AU7465581 A AU 7465581A AU 545820 B2 AU545820 B2 AU 545820B2
Authority
AU
Australia
Prior art keywords
noise reduction
reduction circuit
circuit
noise
reduction
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
AU74655/81A
Other versions
AU7465581A (en
Inventor
Kenzo Akagiri
Nasayuki Katakura
Motomi Ohkouchi
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.)
Sony Corp
Original Assignee
Sony Corp
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
Priority claimed from JP1212080A external-priority patent/JPS55107188A/en
Application filed by Sony Corp filed Critical Sony Corp
Publication of AU7465581A publication Critical patent/AU7465581A/en
Application granted granted Critical
Publication of AU545820B2 publication Critical patent/AU545820B2/en
Anticipated expiration legal-status Critical
Expired 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
AU74655/81A 1980-02-05 1981-08-26 Noise reduction circuit Expired AU545820B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1212080A JPS55107188A (en) 1979-02-08 1980-02-05 Impeller type lubricating device
JP55-121208 1980-09-03

Publications (2)

Publication Number Publication Date
AU7465581A AU7465581A (en) 1982-03-11
AU545820B2 true AU545820B2 (en) 1985-08-01

Family

ID=11796681

Family Applications (1)

Application Number Title Priority Date Filing Date
AU74655/81A Expired AU545820B2 (en) 1980-02-05 1981-08-26 Noise reduction circuit

Country Status (1)

Country Link
AU (1) AU545820B2 (en)

Also Published As

Publication number Publication date
AU7465581A (en) 1982-03-11

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired