KR930018929U - 전원 제어회로 및 임피던스 매칭 회로가 내장된 isdn 전화기 - Google Patents

전원 제어회로 및 임피던스 매칭 회로가 내장된 isdn 전화기

Info

Publication number
KR930018929U
KR930018929U KR2019920001563U KR920001563U KR930018929U KR 930018929 U KR930018929 U KR 930018929U KR 2019920001563 U KR2019920001563 U KR 2019920001563U KR 920001563 U KR920001563 U KR 920001563U KR 930018929 U KR930018929 U KR 930018929U
Authority
KR
South Korea
Prior art keywords
built
power control
impedance matching
control circuit
isdn telephone
Prior art date
Application number
KR2019920001563U
Other languages
English (en)
Other versions
KR970005226Y1 (ko
Inventor
이명규
Original Assignee
엘지정보통신 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 엘지정보통신 주식회사 filed Critical 엘지정보통신 주식회사
Priority to KR92001563U priority Critical patent/KR970005226Y1/ko
Publication of KR930018929U publication Critical patent/KR930018929U/ko
Application granted granted Critical
Publication of KR970005226Y1 publication Critical patent/KR970005226Y1/ko

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/253—Telephone sets using digital voice transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/76—Compensating for differences in line impedance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
KR92001563U 1992-01-31 1992-01-31 전원 제어회로 및 임피던스 매칭 회로가 내장된 isdn 전화기 KR970005226Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR92001563U KR970005226Y1 (ko) 1992-01-31 1992-01-31 전원 제어회로 및 임피던스 매칭 회로가 내장된 isdn 전화기

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR92001563U KR970005226Y1 (ko) 1992-01-31 1992-01-31 전원 제어회로 및 임피던스 매칭 회로가 내장된 isdn 전화기

Publications (2)

Publication Number Publication Date
KR930018929U true KR930018929U (ko) 1993-08-21
KR970005226Y1 KR970005226Y1 (ko) 1997-05-27

Family

ID=19328590

Family Applications (1)

Application Number Title Priority Date Filing Date
KR92001563U KR970005226Y1 (ko) 1992-01-31 1992-01-31 전원 제어회로 및 임피던스 매칭 회로가 내장된 isdn 전화기

Country Status (1)

Country Link
KR (1) KR970005226Y1 (ko)

Also Published As

Publication number Publication date
KR970005226Y1 (ko) 1997-05-27

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