CA1003901A - Radio paging communication system - Google Patents

Radio paging communication system

Info

Publication number
CA1003901A
CA1003901A CA185,661A CA185661A CA1003901A CA 1003901 A CA1003901 A CA 1003901A CA 185661 A CA185661 A CA 185661A CA 1003901 A CA1003901 A CA 1003901A
Authority
CA
Canada
Prior art keywords
communication system
radio paging
paging communication
radio
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
CA185,661A
Other languages
English (en)
Other versions
CA185661S (en
Inventor
Abraham Janssens
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA1003901A publication Critical patent/CA1003901A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/022—One-way selective calling networks, e.g. wide area paging
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
    • H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
CA185,661A 1972-11-23 1973-11-13 Radio paging communication system Expired CA1003901A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7215855,A NL168973C (nl) 1972-11-23 1972-11-23 Omroepstelsel.

Publications (1)

Publication Number Publication Date
CA1003901A true CA1003901A (en) 1977-01-18

Family

ID=19817408

Family Applications (1)

Application Number Title Priority Date Filing Date
CA185,661A Expired CA1003901A (en) 1972-11-23 1973-11-13 Radio paging communication system

Country Status (6)

Country Link
US (1) US3927373A (pm)
JP (1) JPS5330562B2 (pm)
CA (1) CA1003901A (pm)
FR (1) FR2208148B1 (pm)
GB (1) GB1440795A (pm)
NL (1) NL168973C (pm)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH589378A5 (pm) * 1975-06-05 1977-06-30 Landis & Gyr Ag
GB1540570A (en) * 1977-09-09 1979-02-14 Philips Electronic Associated Radio transmission systems
US4231114A (en) * 1978-02-27 1980-10-28 Motorola, Inc. Synchronizing means for a two-way communication system
US4317220A (en) * 1979-02-05 1982-02-23 Andre Martin Simulcast transmission system
US4451930A (en) * 1982-08-02 1984-05-29 Motorola Inc. Phase-locked receiver with derived reference frequency
US4608699A (en) * 1982-12-27 1986-08-26 Motorola, Inc. Simulcast transmission system
GB2140233A (en) * 1983-05-17 1984-11-21 Marconi Co Ltd Apparatus for transmitting electromagnetic energy
US4571621A (en) * 1983-06-15 1986-02-18 Microband Corporation Of America Television transmitter
FI71452C (fi) * 1985-04-10 1986-12-19 Arvo Mustonen Synkroniseringsfoerfarande foer ett lokalt t ex riksomfattandepersonsoekarnaets radiosaendare
US5065450A (en) * 1989-03-21 1991-11-12 Tft, Inc. Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system
US5046124A (en) * 1989-03-21 1991-09-03 Tft, Inc. Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2033237A (en) * 1934-08-15 1936-03-10 American Telephone & Telegraph Frequency control system
GB1263928A (en) * 1968-06-27 1972-02-16 Plessey Co Ltd Improvements in or relating to frequency synthesisers

Also Published As

Publication number Publication date
FR2208148B1 (pm) 1978-08-04
US3927373A (en) 1975-12-16
JPS4984306A (pm) 1974-08-13
NL168973C (nl) 1982-05-17
FR2208148A1 (pm) 1974-06-21
JPS5330562B2 (pm) 1978-08-28
NL168973B (nl) 1981-12-16
GB1440795A (en) 1976-06-23
DE2355081B2 (de) 1976-07-29
DE2355081A1 (de) 1974-06-06
NL7215855A (pm) 1974-05-27

Similar Documents

Publication Publication Date Title
GB1440620A (en) Mobile communication system
CA989013A (en) Radio frequency communication systems
CA984505A (en) Antenna system
CA1003981A (en) Communication receiver
CA960756A (en) Radio communication system
CA998440A (en) Radio relay systems
CA980434A (en) Radio frequency antenna system
CA1003901A (en) Radio paging communication system
AU482123B2 (en) Radio receiver protection arrangement
CA987800A (en) Time division communication system
AU442060B2 (en) Paging system
CA996193A (en) Highway communication system
AU4535072A (en) Communication system
CA985435A (en) Time division communication system
CA987801A (en) Time division communication system
CA1034205A (en) Radio system
AU5314773A (en) Communications system
CA896090A (en) Radio telephone system
CA899790A (en) Communication system
CA989513A (en) Communication system
CA894436A (en) Radio beacon
AU467831B2 (en) Mobile abattoirs
CA936920A (en) Intra-plant radio communication system
CA838749A (en) Radio communication system
AU461768B2 (en) Improvements in or relating to radio communication systems

Legal Events

Date Code Title Description
MKEX Expiry

Effective date: 19940118