Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03G—CONTROL OF AMPLIFICATION
  • H03G7/00—Volume compression or expansion in amplifiers
  • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
  • H03G7/004—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers using continuously variable impedance devices
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
  • G11B23/0007—Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03G—CONTROL OF AMPLIFICATION
  • H03G5/00—Tone control or bandwidth control in amplifiers
  • H03G5/16—Automatic control
  • H03G5/18—Automatic control in untuned amplifiers
  • H03G5/22—Automatic control in untuned amplifiers having semiconductor devices
• • 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

• Engineering & Computer Science (AREA)
• Multimedia (AREA)
• Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
• Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
• Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
• Networks Using Active Elements (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=13019951

Family Applications (1)

Country Status (11)

Families Citing this family (7)

Family Cites Families (10)

• 1972
  • 1972-05-13 JP JP1972056182U patent/JPS574492Y2/ja not_active Expired
• 1973
  • 1973-05-11 DE DE2323937A patent/DE2323937A1/de active Granted
  • 1973-05-11 GB GB2270273A patent/GB1412702A/en not_active Expired
  • 1973-05-11 FR FR7317232A patent/FR2198313B1/fr not_active Expired
  • 1973-05-11 CA CA171,002A patent/CA1003508A/en not_active Expired
  • 1973-05-11 US US05/359,217 patent/US3946249A/en not_active Expired - Lifetime
  • 1973-05-11 SE SE7306697A patent/SE395579B/sv unknown
  • 1973-05-14 CH CH683073A patent/CH563692A5/xx not_active IP Right Cessation
  • 1973-05-14 IT IT49947/73A patent/IT985033B/it active
  • 1973-05-14 AT AT422073A patent/AT347713B/de not_active IP Right Cessation
  • 1973-05-14 NL NL7306700A patent/NL7306700A/xx not_active Application Discontinuation

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