JPS58186292A - 多周波信号送出方式 - Google Patents

多周波信号送出方式

Info

Publication number
JPS58186292A
JPS58186292A JP57068745A JP6874582A JPS58186292A JP S58186292 A JPS58186292 A JP S58186292A JP 57068745 A JP57068745 A JP 57068745A JP 6874582 A JP6874582 A JP 6874582A JP S58186292 A JPS58186292 A JP S58186292A
Authority
JP
Japan
Prior art keywords
signal
timing
output
gate
counter
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.)
Granted
Application number
JP57068745A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6231556B2 (OSRAM
Inventor
Takemi Hosaka
保坂　岳深
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
Original Assignee
NEC 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP57068745A priority Critical patent/JPS58186292A/ja
Publication of JPS58186292A publication Critical patent/JPS58186292A/ja
Publication of JPS6231556B2 publication Critical patent/JPS6231556B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
    • H04Q1/4575—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals which are transmitted in digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP57068745A 1982-04-26 1982-04-26 多周波信号送出方式 Granted JPS58186292A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57068745A JPS58186292A (ja) 1982-04-26 1982-04-26 多周波信号送出方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57068745A JPS58186292A (ja) 1982-04-26 1982-04-26 多周波信号送出方式

Publications (2)

Publication Number Publication Date
JPS58186292A true JPS58186292A (ja) 1983-10-31
JPS6231556B2 JPS6231556B2 (OSRAM) 1987-07-09

Family

ID=13382618

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57068745A Granted JPS58186292A (ja) 1982-04-26 1982-04-26 多周波信号送出方式

Country Status (1)

Country Link
JP (1) JPS58186292A (OSRAM)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54121606A (en) * 1978-03-14 1979-09-20 Nec Corp Multi-frequency signal generating device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54121606A (en) * 1978-03-14 1979-09-20 Nec Corp Multi-frequency signal generating device

Also Published As

Publication number Publication date
JPS6231556B2 (OSRAM) 1987-07-09

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