JPH0327157B2 - - Google Patents

Info

Publication number
JPH0327157B2
JPH0327157B2 JP24714084A JP24714084A JPH0327157B2 JP H0327157 B2 JPH0327157 B2 JP H0327157B2 JP 24714084 A JP24714084 A JP 24714084A JP 24714084 A JP24714084 A JP 24714084A JP H0327157 B2 JPH0327157 B2 JP H0327157B2
Authority
JP
Japan
Prior art keywords
circuit
impedance
signal
output
balanced
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
JP24714084A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61126893A (ja
Inventor
Isamu Ueki
Kazuo Hamasato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Nippon Electric Co Ltd
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 Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP24714084A priority Critical patent/JPS61126893A/ja
Publication of JPS61126893A publication Critical patent/JPS61126893A/ja
Publication of JPH0327157B2 publication Critical patent/JPH0327157B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/18—Automatic or semi-automatic exchanges with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
JP24714084A 1984-11-22 1984-11-22 信号伝達回路 Granted JPS61126893A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24714084A JPS61126893A (ja) 1984-11-22 1984-11-22 信号伝達回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24714084A JPS61126893A (ja) 1984-11-22 1984-11-22 信号伝達回路

Publications (2)

Publication Number Publication Date
JPS61126893A JPS61126893A (ja) 1986-06-14
JPH0327157B2 true JPH0327157B2 (enrdf_load_stackoverflow) 1991-04-15

Family

ID=17159023

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24714084A Granted JPS61126893A (ja) 1984-11-22 1984-11-22 信号伝達回路

Country Status (1)

Country Link
JP (1) JPS61126893A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS61126893A (ja) 1986-06-14

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