GB1469058A - Noise reduction circuit - Google Patents

Noise reduction circuit

Info

Publication number
GB1469058A
GB1469058A GB2040375A GB2040375A GB1469058A GB 1469058 A GB1469058 A GB 1469058A GB 2040375 A GB2040375 A GB 2040375A GB 2040375 A GB2040375 A GB 2040375A GB 1469058 A GB1469058 A GB 1469058A
Authority
GB
United Kingdom
Prior art keywords
signal
audio signal
resistor
capacitor
filter
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
GB2040375A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1469058A publication Critical patent/GB1469058A/en
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
    • H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
    • H03G9/18—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for tone control and volume expansion or compression

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Networks Using Active Elements (AREA)
  • Amplifiers (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
GB2040375A 1974-05-20 1975-05-14 Noise reduction circuit Expired GB1469058A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47119474A 1974-05-20 1974-05-20

Publications (1)

Publication Number Publication Date
GB1469058A true GB1469058A (en) 1977-03-30

Family

ID=23870637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2040375A Expired GB1469058A (en) 1974-05-20 1975-05-14 Noise reduction circuit

Country Status (3)

Country Link
JP (1) JPS51250A (enrdf_load_stackoverflow)
DE (1) DE2522237A1 (enrdf_load_stackoverflow)
GB (1) GB1469058A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540946A (en) * 1980-06-06 1985-09-10 National Research Development Corp. Variable characteristic filters
CN113168578A (zh) * 2018-11-12 2021-07-23 新南创新有限公司 信号组合器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5180744A (enrdf_load_stackoverflow) * 1975-01-10 1976-07-14 Nippon Electric Co
DE2655325C2 (de) * 1976-12-07 1984-01-26 Saba Gmbh, 7730 Villingen-Schwenningen Magnetbandgerät mit einer im Wiedergabebetrieb wirksamen Rauschunterdrückungs-Schaltung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540946A (en) * 1980-06-06 1985-09-10 National Research Development Corp. Variable characteristic filters
CN113168578A (zh) * 2018-11-12 2021-07-23 新南创新有限公司 信号组合器

Also Published As

Publication number Publication date
DE2522237A1 (de) 1975-12-11
JPS51250A (enrdf_load_stackoverflow) 1976-01-05

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee