WO1997039542A3 - Simultaneous broadcast management system - Google Patents

Simultaneous broadcast management system Download PDF

Info

Publication number
WO1997039542A3
WO1997039542A3 PCT/US1997/005891 US9705891W WO9739542A3 WO 1997039542 A3 WO1997039542 A3 WO 1997039542A3 US 9705891 W US9705891 W US 9705891W WO 9739542 A3 WO9739542 A3 WO 9739542A3
Authority
WO
WIPO (PCT)
Prior art keywords
simultaneous broadcast
management system
simulcast
broadcast management
alignment
Prior art date
Application number
PCT/US1997/005891
Other languages
French (fr)
Other versions
WO1997039542A2 (en
Inventor
Dana J Jensen
Douglas L Hanz
Mark D Dvorak
Original Assignee
Johnson Co E F
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 US08/631,866 external-priority patent/US5896560A/en
Priority claimed from US08/628,981 external-priority patent/US5991309A/en
Application filed by Johnson Co E F filed Critical Johnson Co E F
Priority to AU24502/97A priority Critical patent/AU2450297A/en
Publication of WO1997039542A2 publication Critical patent/WO1997039542A2/en
Publication of WO1997039542A3 publication Critical patent/WO1997039542A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/67—Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
    • 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
    • H04B1/60—Supervising unattended repeaters
    • 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
    • H04B1/68—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 for wholly or partially suppressing the carrier or one side band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
    • 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]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radio Relay Systems (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Selective Calling Equipment (AREA)

Abstract

A simultaneous broadcast management system for measuring and correcting phase error in simultaneous broadcast systems, the system having a specialized receiver for demodulating two or more channels. The demodulated information is compared to determine relative phase difference and transmission delays are implemented to equalize relative delay of the received signals. Temporal alignment of at least two remote transmitting sites is performed using different channels to avoid the simulcast condition during alignment of transmitters in the system. Alternate systems employ directional antennas to perform alignment under simulcast conditions.
PCT/US1997/005891 1996-04-12 1997-04-11 Simultaneous broadcast management system WO1997039542A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU24502/97A AU2450297A (en) 1996-04-12 1997-04-11 Simultaneous broadcast management system

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
US1531196P 1996-04-12 1996-04-12
US63067396A 1996-04-12 1996-04-12
US1530996P 1996-04-12 1996-04-12
US08/628,981 1996-04-12
US60/015,311 1996-04-12
US08/631,866 US5896560A (en) 1996-04-12 1996-04-12 Transmit control system using in-band tone signalling
US08/628,981 US5991309A (en) 1996-04-12 1996-04-12 Bandwidth management system for a remote repeater network
US08/631,866 1996-04-12
US60/015,309 1996-04-12
US08/630,673 1996-04-12
US2776396P 1996-10-07 1996-10-07
US60/027,763 1996-10-07

Publications (2)

Publication Number Publication Date
WO1997039542A2 WO1997039542A2 (en) 1997-10-23
WO1997039542A3 true WO1997039542A3 (en) 2001-09-13

Family

ID=27555805

Family Applications (4)

Application Number Title Priority Date Filing Date
PCT/US1997/005891 WO1997039542A2 (en) 1996-04-12 1997-04-11 Simultaneous broadcast management system
PCT/US1997/005984 WO1997039543A2 (en) 1996-04-12 1997-04-11 Link delay calculation system for a radio repeater system
PCT/US1997/005893 WO1997039541A1 (en) 1996-04-12 1997-04-11 Transmit control system using control tone signalling
PCT/US1997/005985 WO1997039535A2 (en) 1996-04-12 1997-04-11 Bandwidth management system for a remote repeater network

Family Applications After (3)

Application Number Title Priority Date Filing Date
PCT/US1997/005984 WO1997039543A2 (en) 1996-04-12 1997-04-11 Link delay calculation system for a radio repeater system
PCT/US1997/005893 WO1997039541A1 (en) 1996-04-12 1997-04-11 Transmit control system using control tone signalling
PCT/US1997/005985 WO1997039535A2 (en) 1996-04-12 1997-04-11 Bandwidth management system for a remote repeater network

Country Status (2)

Country Link
AU (4) AU2662997A (en)
WO (4) WO1997039542A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6674855B1 (en) 1999-10-06 2004-01-06 Comverse Ltd. High performance multifrequency signal detection
CN108519738A (en) * 2018-04-13 2018-09-11 中国科学院微电子研究所 Vehicle motion state information delay compensation method and device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6508593A (en) * 1965-07-02 1967-01-03
EP0004702A1 (en) * 1978-04-10 1979-10-17 Motorola, Inc. Simulcast transmission system having phase-locked remote transmitters
EP0020893A1 (en) * 1979-06-08 1981-01-07 Robert Bosch Gmbh Radio network
DE3203678A1 (en) * 1982-02-04 1983-08-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Common-frequency radio network
US4490830A (en) * 1981-07-22 1984-12-25 Nippon Electric Co., Ltd. Radio signal transmission system including a plurality of transmitters for transmitting a common signal
US4972410A (en) * 1989-07-20 1990-11-20 Electrocom Automation, Inc. Method and apparatus for controlling signal coherency in simulcast systems
WO1993007681A1 (en) * 1991-10-04 1993-04-15 Motorola, Inc. Simulcast synchronization and equalization system and method therefor

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867700A (en) * 1972-11-15 1975-02-18 Keith H Wycoff Tone operated single side-band communication system
GB1574599A (en) * 1977-04-20 1980-09-10 Plessey Co Ltd Fault indication in repeatered telecommunications transmission-line
US4406016A (en) * 1981-11-27 1983-09-20 The United States Of America As Represented By The Secretary Of The Army VHF Sensor in-band radio relay
CA1175964A (en) * 1982-02-22 1984-10-09 John A. Barsellotti Two wire voice and data subscriber loop
EP0184923B1 (en) * 1984-12-10 1992-03-04 Nippon Telegraph And Telephone Corporation Single-sideband communication system
US4903292A (en) * 1988-11-01 1990-02-20 Reliance Comm/Tec Corporation System for transmitting low frequency tones through a digital loop carrier system
JP2611695B2 (en) * 1989-12-15 1997-05-21 日本電気株式会社 Optical repeater monitoring circuit
GB9111313D0 (en) * 1991-05-24 1991-07-17 British Telecomm Radio system
US5280629A (en) * 1991-12-06 1994-01-18 Motorola, Inc. Technique for measuring channel delay
ES2149782T3 (en) * 1992-01-10 2000-11-16 Nec Corp SIMULTANEOUS TRANSMISSION RADIO PAGE SEARCH SYSTEM.
US5440313A (en) * 1993-05-27 1995-08-08 Stellar Gps Corporation GPS synchronized frequency/time source

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6508593A (en) * 1965-07-02 1967-01-03
EP0004702A1 (en) * 1978-04-10 1979-10-17 Motorola, Inc. Simulcast transmission system having phase-locked remote transmitters
EP0020893A1 (en) * 1979-06-08 1981-01-07 Robert Bosch Gmbh Radio network
US4490830A (en) * 1981-07-22 1984-12-25 Nippon Electric Co., Ltd. Radio signal transmission system including a plurality of transmitters for transmitting a common signal
DE3203678A1 (en) * 1982-02-04 1983-08-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Common-frequency radio network
US4972410A (en) * 1989-07-20 1990-11-20 Electrocom Automation, Inc. Method and apparatus for controlling signal coherency in simulcast systems
WO1993007681A1 (en) * 1991-10-04 1993-04-15 Motorola, Inc. Simulcast synchronization and equalization system and method therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
T.HATTORI ET AL: "THEORETICAL STUDIES OF A SIMULCAST DIGITAL RADIO PAGING SYSTEM USING A CARRIER FREQUENCY OFFSET STRATEGY", IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol. VT-29, no. 1, February 1980 (1980-02-01), pages 87 - 95, XP002036296 *

Also Published As

Publication number Publication date
WO1997039535A3 (en) 1997-12-24
WO1997039535A2 (en) 1997-10-23
AU2726297A (en) 1997-11-07
AU2450297A (en) 1997-11-07
AU2726397A (en) 1997-11-07
WO1997039543A3 (en) 1998-02-05
AU2662997A (en) 1997-11-07
WO1997039541A1 (en) 1997-10-23
WO1997039543A2 (en) 1997-10-23
WO1997039542A2 (en) 1997-10-23

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