JPS6349952B2 - - Google Patents

Info

Publication number
JPS6349952B2
JPS6349952B2 JP15210379A JP15210379A JPS6349952B2 JP S6349952 B2 JPS6349952 B2 JP S6349952B2 JP 15210379 A JP15210379 A JP 15210379A JP 15210379 A JP15210379 A JP 15210379A JP S6349952 B2 JPS6349952 B2 JP S6349952B2
Authority
JP
Japan
Prior art keywords
tone signal
tone
pcm
bit
parity
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
JP15210379A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5675766A (en
Inventor
Kazuto Hirose
Ryujiro Muramatsu
Hitoshi Imagawa
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.)
Hitachi Ltd
NTT Inc
Original Assignee
Hitachi Ltd
Nippon Telegraph and Telephone Corp
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 Hitachi Ltd, Nippon Telegraph and Telephone Corp filed Critical Hitachi Ltd
Priority to JP15210379A priority Critical patent/JPS5675766A/ja
Publication of JPS5675766A publication Critical patent/JPS5675766A/ja
Publication of JPS6349952B2 publication Critical patent/JPS6349952B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
    • H04M1/505—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies signals generated in digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP15210379A 1979-11-26 1979-11-26 Tone signal generator Granted JPS5675766A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15210379A JPS5675766A (en) 1979-11-26 1979-11-26 Tone signal generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15210379A JPS5675766A (en) 1979-11-26 1979-11-26 Tone signal generator

Publications (2)

Publication Number Publication Date
JPS5675766A JPS5675766A (en) 1981-06-23
JPS6349952B2 true JPS6349952B2 (cg-RX-API-DMAC7.html) 1988-10-06

Family

ID=15533111

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15210379A Granted JPS5675766A (en) 1979-11-26 1979-11-26 Tone signal generator

Country Status (1)

Country Link
JP (1) JPS5675766A (cg-RX-API-DMAC7.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE434324B (sv) * 1982-11-25 1984-07-16 Ellemtel Utvecklings Ab Anordning for att i terminalutrustningen hos ett digitalt telekommunikationssystem alstra tonsignaler

Also Published As

Publication number Publication date
JPS5675766A (en) 1981-06-23

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