KR930022508U - 전화착신 검출회로 - Google Patents

전화착신 검출회로

Info

Publication number
KR930022508U
KR930022508U KR2019920003654U KR920003654U KR930022508U KR 930022508 U KR930022508 U KR 930022508U KR 2019920003654 U KR2019920003654 U KR 2019920003654U KR 920003654 U KR920003654 U KR 920003654U KR 930022508 U KR930022508 U KR 930022508U
Authority
KR
South Korea
Prior art keywords
detection circuit
incoming detection
telephone incoming
telephone
circuit
Prior art date
Application number
KR2019920003654U
Other languages
English (en)
Other versions
KR940007124Y1 (ko
Inventor
이종균
Original Assignee
주식회사 금성사
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 주식회사 금성사 filed Critical 주식회사 금성사
Priority to KR92003654U priority Critical patent/KR940007124Y1/ko
Publication of KR930022508U publication Critical patent/KR930022508U/ko
Application granted granted Critical
Publication of KR940007124Y1 publication Critical patent/KR940007124Y1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Devices For Supply Of Signal Current (AREA)
KR92003654U 1992-03-07 1992-03-07 전화착신 검출회로 KR940007124Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR92003654U KR940007124Y1 (ko) 1992-03-07 1992-03-07 전화착신 검출회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR92003654U KR940007124Y1 (ko) 1992-03-07 1992-03-07 전화착신 검출회로

Publications (2)

Publication Number Publication Date
KR930022508U true KR930022508U (ko) 1993-10-16
KR940007124Y1 KR940007124Y1 (ko) 1994-10-13

Family

ID=19330017

Family Applications (1)

Application Number Title Priority Date Filing Date
KR92003654U KR940007124Y1 (ko) 1992-03-07 1992-03-07 전화착신 검출회로

Country Status (1)

Country Link
KR (1) KR940007124Y1 (ko)

Also Published As

Publication number Publication date
KR940007124Y1 (ko) 1994-10-13

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E701 Decision to grant or registration of patent right
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Year of fee payment: 11

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