KR930003743U - Audio volume control circuit during phone call - Google Patents

Audio volume control circuit during phone call

Info

Publication number
KR930003743U
KR930003743U KR2019910012058U KR910012058U KR930003743U KR 930003743 U KR930003743 U KR 930003743U KR 2019910012058 U KR2019910012058 U KR 2019910012058U KR 910012058 U KR910012058 U KR 910012058U KR 930003743 U KR930003743 U KR 930003743U
Authority
KR
South Korea
Prior art keywords
control circuit
volume control
phone call
circuit during
audio volume
Prior art date
Application number
KR2019910012058U
Other languages
Korean (ko)
Other versions
KR960007199Y1 (en
Inventor
강인수
Original Assignee
금성일렉트론 주식회사
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 금성일렉트론 주식회사 filed Critical 금성일렉트론 주식회사
Priority to KR2019910012058U priority Critical patent/KR960007199Y1/en
Publication of KR930003743U publication Critical patent/KR930003743U/en
Application granted granted Critical
Publication of KR960007199Y1 publication Critical patent/KR960007199Y1/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Circuits Of Receivers In General (AREA)
KR2019910012058U 1991-07-30 1991-07-30 Audio volume control circuit KR960007199Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019910012058U KR960007199Y1 (en) 1991-07-30 1991-07-30 Audio volume control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019910012058U KR960007199Y1 (en) 1991-07-30 1991-07-30 Audio volume control circuit

Publications (2)

Publication Number Publication Date
KR930003743U true KR930003743U (en) 1993-02-26
KR960007199Y1 KR960007199Y1 (en) 1996-08-22

Family

ID=19317305

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019910012058U KR960007199Y1 (en) 1991-07-30 1991-07-30 Audio volume control circuit

Country Status (1)

Country Link
KR (1) KR960007199Y1 (en)

Also Published As

Publication number Publication date
KR960007199Y1 (en) 1996-08-22

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Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19990729

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee