AU3844899A - Two-way group communication systems - Google Patents

Two-way group communication systems

Info

Publication number
AU3844899A
AU3844899A AU38448/99A AU3844899A AU3844899A AU 3844899 A AU3844899 A AU 3844899A AU 38448/99 A AU38448/99 A AU 38448/99A AU 3844899 A AU3844899 A AU 3844899A AU 3844899 A AU3844899 A AU 3844899A
Authority
AU
Australia
Prior art keywords
communication systems
group communication
way group
way
systems
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.)
Abandoned
Application number
AU38448/99A
Inventor
Doron Shalev
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of AU3844899A publication Critical patent/AU3844899A/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H04W76/45—Connection management for selective distribution or broadcast for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2665—Arrangements for Wireless Frequency Division Multiple Access [FDMA] System Synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Radio Transmission System (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
AU38448/99A 1998-06-22 1999-05-10 Two-way group communication systems Abandoned AU3844899A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IL125059 1998-06-22
IL12505998A IL125059A0 (en) 1998-06-22 1998-06-22 Two-way group communication systems
PCT/IL1999/000246 WO1999067894A2 (en) 1998-06-22 1999-05-10 Two-way wireless communication between a group of devices

Publications (1)

Publication Number Publication Date
AU3844899A true AU3844899A (en) 2000-01-10

Family

ID=11071666

Family Applications (1)

Application Number Title Priority Date Filing Date
AU38448/99A Abandoned AU3844899A (en) 1998-06-22 1999-05-10 Two-way group communication systems

Country Status (3)

Country Link
AU (1) AU3844899A (en)
IL (1) IL125059A0 (en)
WO (1) WO1999067894A2 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54158810A (en) * 1978-06-06 1979-12-15 Nec Corp Time-division multidirectional multiplex communication system
GB2099245B (en) * 1981-05-26 1984-11-14 Philips Electronic Associated Demodulating an amplitude modulated signal
US4485483A (en) * 1983-03-18 1984-11-27 Torick Emil L FM Stereophonic system incorporating companding of difference signal
US4903323A (en) * 1988-02-26 1990-02-20 Signal Communications Corporation Call box
FI86017C (en) * 1990-11-02 1992-06-25 Telenokia Oy BASSTATION FOER ETT RADIOSYSTEM.
JPH0556176A (en) * 1991-08-27 1993-03-05 Aiphone Co Ltd Loud-speaker type radio interphone
GB9226580D0 (en) * 1992-12-21 1993-02-17 D2B Systems Co Ltd Local communications system with plural data channels
US5606560A (en) * 1994-09-23 1997-02-25 Motorola, Inc. Between a base station and a portable device
US5511232A (en) * 1994-12-02 1996-04-23 Motorola, Inc. Method for providing autonomous radio talk group configuration
US5613218A (en) * 1995-08-28 1997-03-18 Motorola, Inc. Method and apparatus in a radio communication system for mitigating noise and interference effects
EP0865693A1 (en) * 1995-12-04 1998-09-23 Advanced Micro Devices, Inc. System and method for frequency division duplex/time division duplex radio frequency communications

Also Published As

Publication number Publication date
WO1999067894A3 (en) 2000-02-24
IL125059A0 (en) 1999-01-26
WO1999067894A2 (en) 1999-12-29

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase