CA928818A - Tone signaling system - Google Patents

Tone signaling system

Info

Publication number
CA928818A
CA928818A CA099350A CA99350A CA928818A CA 928818 A CA928818 A CA 928818A CA 099350 A CA099350 A CA 099350A CA 99350 A CA99350 A CA 99350A CA 928818 A CA928818 A CA 928818A
Authority
CA
Canada
Prior art keywords
signaling system
tone signaling
tone
signaling
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
CA099350A
Inventor
L. Hale Otis
D. Rakes Charles
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.)
FAN TRON CORP
Original Assignee
FAN TRON 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
Priority claimed from US887971A external-priority patent/US3649770A/en
Application filed by FAN TRON CORP filed Critical FAN TRON CORP
Priority to CA154,075A priority Critical patent/CA943656A/en
Priority to CA154,074A priority patent/CA944837A/en
Application granted granted Critical
Publication of CA928818A publication Critical patent/CA928818A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices
    • H04W88/185—Selective call encoders for paging networks, e.g. paging centre devices
    • H04W88/188—Selective call encoders for paging networks, e.g. paging centre devices using frequency address codes
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/12—Electric signal transmission systems in which the signal transmitted is frequency or phase of ac
    • G08C19/14—Electric signal transmission systems in which the signal transmitted is frequency or phase of ac using combination of fixed frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/30—Systems using multi-frequency codes wherein each code element is represented by a combination of frequencies
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Filters And Equalizers (AREA)
  • Selective Calling Equipment (AREA)
CA099350A 1969-12-24 1970-11-27 Tone signaling system Expired CA928818A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA154,075A CA943656A (en) 1969-12-24 1972-10-17 Tone signaling system
CA154,074A CA944837A (en) 1969-12-24 1972-10-17 Tone signaling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US887971A US3649770A (en) 1969-12-24 Tone signaling system

Publications (1)

Publication Number Publication Date
CA928818A true CA928818A (en) 1973-06-19

Family

ID=25392253

Family Applications (1)

Application Number Title Priority Date Filing Date
CA099350A Expired CA928818A (en) 1969-12-24 1970-11-27 Tone signaling system

Country Status (8)

Country Link
BE (1) BE760766A (en)
CA (1) CA928818A (en)
DE (1) DE2062957A1 (en)
ES (1) ES386797A1 (en)
FR (1) FR2072054B1 (en)
GB (1) GB1328665A (en)
NL (1) NL7018746A (en)
ZA (1) ZA708418B (en)

Also Published As

Publication number Publication date
NL7018746A (en) 1971-06-28
ES386797A1 (en) 1973-04-01
DE2062957A1 (en) 1971-07-08
BE760766A (en) 1971-05-27
FR2072054B1 (en) 1973-02-02
FR2072054A1 (en) 1971-09-24
ZA708418B (en) 1972-07-26
GB1328665A (en) 1973-08-30

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