CA1012223A - Selective tone signalling apparatus - Google Patents

Selective tone signalling apparatus

Info

Publication number
CA1012223A
CA1012223A CA151,588A CA151588A CA1012223A CA 1012223 A CA1012223 A CA 1012223A CA 151588 A CA151588 A CA 151588A CA 1012223 A CA1012223 A CA 1012223A
Authority
CA
Canada
Prior art keywords
signalling apparatus
tone signalling
selective tone
selective
tone
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
CA151,588A
Other languages
English (en)
Other versions
CA151588S (en
Inventor
Gary P. Wallin
Gary N. Stapleford
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.)
Wang Laboratories Inc
Original Assignee
Wang Laboratories 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 Wang Laboratories Inc filed Critical Wang Laboratories Inc
Application granted granted Critical
Publication of CA1012223A publication Critical patent/CA1012223A/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
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
    • G08B3/1016—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
    • G08B3/1025—Paging receivers with audible signalling details
    • G08B3/1066—Paging receivers with audible signalling details with other provisions not elsewhere provided for, e.g. turn-off protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
CA151,588A 1971-09-16 1972-09-13 Selective tone signalling apparatus Expired CA1012223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18116571A 1971-09-16 1971-09-16

Publications (1)

Publication Number Publication Date
CA1012223A true CA1012223A (en) 1977-06-14

Family

ID=22663157

Family Applications (1)

Application Number Title Priority Date Filing Date
CA151,588A Expired CA1012223A (en) 1971-09-16 1972-09-13 Selective tone signalling apparatus

Country Status (3)

Country Link
US (1) US3715726A (enExample)
JP (1) JPS4838907A (enExample)
CA (1) CA1012223A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641364A (en) * 1978-12-08 1987-02-03 Motorola, Inc. Function coding via digital addresses in a two-way system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3805265A (en) * 1971-10-06 1974-04-16 Rcds Enterprises Inc Radiant wave locating system
JPS527337U (enExample) * 1975-06-24 1977-01-19
US4103107A (en) * 1977-03-09 1978-07-25 Motorola, Inc. Paging encoder system utilizing a telephone line link
US4254404A (en) * 1978-09-13 1981-03-03 Kramor Industries Ltd. Paging and servicing system
US4306308A (en) * 1979-09-14 1981-12-15 Rca Corporation Symbols communication system
JPS57168350U (enExample) * 1981-04-17 1982-10-23

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641364A (en) * 1978-12-08 1987-02-03 Motorola, Inc. Function coding via digital addresses in a two-way system

Also Published As

Publication number Publication date
JPS4838907A (enExample) 1973-06-08
US3715726A (en) 1973-02-06

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Legal Events

Date Code Title Description
MKEX Expiry

Effective date: 19940614