KR880010887U - Audio signal muting circuit for telephone conversation - Google Patents

Audio signal muting circuit for telephone conversation

Info

Publication number
KR880010887U
KR880010887U KR2019860017278U KR860017278U KR880010887U KR 880010887 U KR880010887 U KR 880010887U KR 2019860017278 U KR2019860017278 U KR 2019860017278U KR 860017278 U KR860017278 U KR 860017278U KR 880010887 U KR880010887 U KR 880010887U
Authority
KR
South Korea
Prior art keywords
audio signal
telephone conversation
muting circuit
signal muting
circuit
Prior art date
Application number
KR2019860017278U
Other languages
Korean (ko)
Other versions
KR900010828Y1 (en
Inventor
박천웅
Original Assignee
삼성전자 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 삼성전자 주식회사 filed Critical 삼성전자 주식회사
Priority to KR2019860017278U priority Critical patent/KR900010828Y1/en
Publication of KR880010887U publication Critical patent/KR880010887U/en
Application granted granted Critical
Publication of KR900010828Y1 publication Critical patent/KR900010828Y1/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
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
KR2019860017278U 1986-11-06 1986-11-06 Audio muting circuit at telephone communication KR900010828Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019860017278U KR900010828Y1 (en) 1986-11-06 1986-11-06 Audio muting circuit at telephone communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019860017278U KR900010828Y1 (en) 1986-11-06 1986-11-06 Audio muting circuit at telephone communication

Publications (2)

Publication Number Publication Date
KR880010887U true KR880010887U (en) 1988-07-28
KR900010828Y1 KR900010828Y1 (en) 1990-11-30

Family

ID=19256873

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019860017278U KR900010828Y1 (en) 1986-11-06 1986-11-06 Audio muting circuit at telephone communication

Country Status (1)

Country Link
KR (1) KR900010828Y1 (en)

Also Published As

Publication number Publication date
KR900010828Y1 (en) 1990-11-30

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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: 19970829

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee