KR880020756U - Sidetone prevention circuit - Google Patents

Sidetone prevention circuit

Info

Publication number
KR880020756U
KR880020756U KR2019870006540U KR870006540U KR880020756U KR 880020756 U KR880020756 U KR 880020756U KR 2019870006540 U KR2019870006540 U KR 2019870006540U KR 870006540 U KR870006540 U KR 870006540U KR 880020756 U KR880020756 U KR 880020756U
Authority
KR
South Korea
Prior art keywords
prevention circuit
sidetone
sidetone prevention
circuit
prevention
Prior art date
Application number
KR2019870006540U
Other languages
Korean (ko)
Other versions
KR900002476Y1 (en
Inventor
이상호
Original Assignee
삼성전자주식회사
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 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to KR2019870006540U priority Critical patent/KR900002476Y1/en
Publication of KR880020756U publication Critical patent/KR880020756U/en
Application granted granted Critical
Publication of KR900002476Y1 publication Critical patent/KR900002476Y1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
KR2019870006540U 1987-04-30 1987-04-30 Side-tone preventing circuit KR900002476Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870006540U KR900002476Y1 (en) 1987-04-30 1987-04-30 Side-tone preventing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870006540U KR900002476Y1 (en) 1987-04-30 1987-04-30 Side-tone preventing circuit

Publications (2)

Publication Number Publication Date
KR880020756U true KR880020756U (en) 1988-11-30
KR900002476Y1 KR900002476Y1 (en) 1990-03-26

Family

ID=19262378

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870006540U KR900002476Y1 (en) 1987-04-30 1987-04-30 Side-tone preventing circuit

Country Status (1)

Country Link
KR (1) KR900002476Y1 (en)

Also Published As

Publication number Publication date
KR900002476Y1 (en) 1990-03-26

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Legal Events

Date Code Title Description
A201 Request for examination
N231 Notification of change of applicant
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20010223

Year of fee payment: 12

LAPS Lapse due to unpaid annual fee