CA926049A - Dial pulse and multiple frequency signalling sender/multiple frequency signalling receiver apparatus - Google Patents

Dial pulse and multiple frequency signalling sender/multiple frequency signalling receiver apparatus

Info

Publication number
CA926049A
CA926049A CA926049A CA926049DA CA926049A CA 926049 A CA926049 A CA 926049A CA 926049 A CA926049 A CA 926049A CA 926049D A CA926049D A CA 926049DA CA 926049 A CA926049 A CA 926049A
Authority
CA
Canada
Prior art keywords
multiple frequency
frequency signalling
receiver apparatus
sender
dial pulse
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
CA926049A
Inventor
E. Dodson Arthur
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.)
Nortel Networks Ltd
Original Assignee
Northern 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 Northern Electric Co Ltd filed Critical Northern Electric Co Ltd
Application granted granted Critical
Publication of CA926049A publication Critical patent/CA926049A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored program

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
CA926049A 1971-10-14 1971-10-14 Dial pulse and multiple frequency signalling sender/multiple frequency signalling receiver apparatus Expired CA926049A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA125192 1971-10-14

Publications (1)

Publication Number Publication Date
CA926049A true CA926049A (en) 1973-05-08

Family

ID=4091162

Family Applications (1)

Application Number Title Priority Date Filing Date
CA926049A Expired CA926049A (en) 1971-10-14 1971-10-14 Dial pulse and multiple frequency signalling sender/multiple frequency signalling receiver apparatus

Country Status (1)

Country Link
CA (1) CA926049A (en)

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