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KR870009088U - 전화기용 신호음 선별장치 회로 - Google Patents

전화기용 신호음 선별장치 회로

Info

Publication number
KR870009088U
KR870009088U KR2019850014749U KR850014749U KR870009088U KR 870009088 U KR870009088 U KR 870009088U KR 2019850014749 U KR2019850014749 U KR 2019850014749U KR 850014749 U KR850014749 U KR 850014749U KR 870009088 U KR870009088 U KR 870009088U
Authority
KR
South Korea
Prior art keywords
circuit
Prior art date
Application number
KR2019850014749U
Other languages
English (en)
Other versions
KR890000418Y1 (ko
Inventor
이용만
Original Assignee
대우통신 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 대우통신 주식회사 filed Critical 대우통신 주식회사
Priority to KR2019850014749U priority Critical patent/KR890000418Y1/ko
Publication of KR870009088U publication Critical patent/KR870009088U/ko
Application granted granted Critical
Publication of KR890000418Y1 publication Critical patent/KR890000418Y1/ko

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • H04M19/041—Encoding the ringing signal, i.e. providing distinctive or selective ringing capability

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Audible And Visible Signals (AREA)
KR2019850014749U 1985-11-08 1985-11-08 전화기용 신호음 선별장치 회로 KR890000418Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019850014749U KR890000418Y1 (ko) 1985-11-08 1985-11-08 전화기용 신호음 선별장치 회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019850014749U KR890000418Y1 (ko) 1985-11-08 1985-11-08 전화기용 신호음 선별장치 회로

Publications (2)

Publication Number Publication Date
KR870009088U true KR870009088U (ko) 1987-06-15
KR890000418Y1 KR890000418Y1 (ko) 1989-03-09

Family

ID=19246372

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019850014749U KR890000418Y1 (ko) 1985-11-08 1985-11-08 전화기용 신호음 선별장치 회로

Country Status (1)

Country Link
KR (1) KR890000418Y1 (ko)

Also Published As

Publication number Publication date
KR890000418Y1 (ko) 1989-03-09

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
LAPS Lapse due to unpaid annual fee