CA997427A - High capacity paging system employing subaudible tones - Google Patents

High capacity paging system employing subaudible tones

Info

Publication number
CA997427A
CA997427A CA161,007A CA161007A CA997427A CA 997427 A CA997427 A CA 997427A CA 161007 A CA161007 A CA 161007A CA 997427 A CA997427 A CA 997427A
Authority
CA
Canada
Prior art keywords
high capacity
system employing
paging system
subaudible tones
capacity paging
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
CA161,007A
Other languages
English (en)
Other versions
CA161007S (en
Inventor
Norman E. Schultz
Robert J. Schwendeman
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of CA997427A publication Critical patent/CA997427A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
CA161,007A 1972-02-07 1973-01-11 High capacity paging system employing subaudible tones Expired CA997427A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22419972A 1972-02-07 1972-02-07

Publications (1)

Publication Number Publication Date
CA997427A true CA997427A (en) 1976-09-21

Family

ID=22839667

Family Applications (1)

Application Number Title Priority Date Filing Date
CA161,007A Expired CA997427A (en) 1972-02-07 1973-01-11 High capacity paging system employing subaudible tones

Country Status (7)

Country Link
US (1) US3798545A (cs)
JP (1) JPS5411081B2 (cs)
AR (1) AR193469A1 (cs)
AU (1) AU449604B2 (cs)
CA (1) CA997427A (cs)
DE (1) DE2305944C3 (cs)
GB (1) GB1374377A (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973200A (en) * 1972-11-07 1976-08-03 Telefonaktiebolaget L M Ericsson Process for acknowledging calls in a system for wireless staff locators
US4355210A (en) * 1980-09-22 1982-10-19 Midian Electronics, Inc. Sub-miniature tone encoder with automatic number identification
AT411122B (de) * 2001-12-03 2003-09-25 Frequentis Nachrichtentechnik Gmbh Verfahren und kommunikationseinrichtung für die übertragung von nachrichten

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2038647A (en) * 1934-09-14 1936-04-28 American Telephone & Telegraph Signaling system
GB630819A (cs) * 1946-09-07
US2671166A (en) * 1950-07-01 1954-03-02 Gen Railway Signal Co Radio communications system
US2918524A (en) * 1956-06-15 1959-12-22 Henry M Hume Television program control
US3387101A (en) * 1965-10-20 1968-06-04 William J. Skiles Identifier for two-way mobile transmityters
US3397401A (en) * 1966-05-27 1968-08-13 Hughes Aircraft Co Voice operated communication system
US3467790A (en) * 1967-10-04 1969-09-16 Lanier Electronic Lab Inc Dictation-transcription device
US3581208A (en) * 1968-12-16 1971-05-25 William Buehrle Jr Emergency warning and identification apparatus for two-way radio communication system

Also Published As

Publication number Publication date
DE2305944A1 (de) 1973-08-30
AU5184973A (en) 1974-06-20
AU449604B2 (en) 1974-06-20
DE2305944B2 (de) 1974-04-25
JPS4891902A (cs) 1973-11-29
DE2305944C3 (de) 1974-11-21
AR193469A1 (es) 1973-04-23
GB1374377A (en) 1974-11-20
US3798545A (en) 1974-03-19
JPS5411081B2 (cs) 1979-05-11

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