AU620939B2 - Improved simulcast broadcasting system and method - Google Patents

Improved simulcast broadcasting system and method Download PDF

Info

Publication number
AU620939B2
AU620939B2 AU44853/89A AU4485389A AU620939B2 AU 620939 B2 AU620939 B2 AU 620939B2 AU 44853/89 A AU44853/89 A AU 44853/89A AU 4485389 A AU4485389 A AU 4485389A AU 620939 B2 AU620939 B2 AU 620939B2
Authority
AU
Australia
Prior art keywords
signal
remote sites
signals
broadcast
distinct
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.)
Ceased
Application number
AU44853/89A
Other languages
English (en)
Other versions
AU4485389A (en
Inventor
Paul J. Cizek
Robert L. Epsom
Paul M. Erickson
Christopher H. Wilson
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
Publication of AU4485389A publication Critical patent/AU4485389A/en
Application granted granted Critical
Publication of AU620939B2 publication Critical patent/AU620939B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • H04B7/2625—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using common wave

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radio Relay Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Mobile Radio Communication Systems (AREA)
AU44853/89A 1988-10-21 1989-09-22 Improved simulcast broadcasting system and method Ceased AU620939B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26152888A 1988-10-21 1988-10-21
US261528 1988-10-21

Publications (2)

Publication Number Publication Date
AU4485389A AU4485389A (en) 1990-05-14
AU620939B2 true AU620939B2 (en) 1992-02-27

Family

ID=22993715

Family Applications (1)

Application Number Title Priority Date Filing Date
AU44853/89A Ceased AU620939B2 (en) 1988-10-21 1989-09-22 Improved simulcast broadcasting system and method

Country Status (5)

Country Link
EP (1) EP0439515A4 (fr)
AU (1) AU620939B2 (fr)
BR (1) BR8907727A (fr)
CA (2) CA1306502C (fr)
WO (1) WO1990004889A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5201061A (en) * 1990-07-23 1993-04-06 Motorola, Inc. Method and apparatus for synchronizing simulcast systems
US5768260A (en) * 1993-06-02 1998-06-16 Telefonaktiebolaget Lm Ericsson Device for changing the transmission parameters in a radio transmitter
TW449983B (en) * 1998-12-21 2001-08-11 Intel Corp Data broadcast error sampling
DE19918829A1 (de) * 1999-04-22 2000-10-26 Deutsche Telekom Ag Verfahren zur Qualitätskontrolle für digitale Rundfunkübertragung im Mittel- und Kurzwellenbereich
FR2927756B1 (fr) * 2008-02-19 2010-06-18 Tdf Reseau de transmission synchrone de donnees et procede de surveillance d'un tel reseau.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255814A (en) * 1977-07-15 1981-03-10 Motorola, Inc. Simulcast transmission system
US4475246A (en) * 1982-12-21 1984-10-02 Motorola, Inc. Simulcast same frequency repeater system
US4696052A (en) * 1985-12-31 1987-09-22 Motorola Inc. Simulcast transmitter apparatus having automatic synchronization capability

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188582A (en) * 1978-04-10 1980-02-12 Motorola, Inc. Simulcast transmission system having phase-locked remote transmitters
US4317220A (en) * 1979-02-05 1982-02-23 Andre Martin Simulcast transmission system
US4317217A (en) * 1980-08-11 1982-02-23 Motorola, Inc. Tag generator for a same-frequency repeater
US4363129A (en) * 1980-12-11 1982-12-07 Motorola, Inc. Method and means of minimizing simulcast distortion in a receiver when using a same-frequency repeater
US4570265A (en) * 1981-11-23 1986-02-11 Motorola, Inc. Random frequency offsetting apparatus for multi-transmitter simulcast radio communications systems
US4578815A (en) * 1983-12-07 1986-03-25 Motorola, Inc. Wide area coverage radio communication system and method
FI71452C (fi) * 1985-04-10 1986-12-19 Arvo Mustonen Synkroniseringsfoerfarande foer ett lokalt t ex riksomfattandepersonsoekarnaets radiosaendare
US4718109A (en) * 1986-03-06 1988-01-05 Motorola, Inc. Automatic synchronization system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255814A (en) * 1977-07-15 1981-03-10 Motorola, Inc. Simulcast transmission system
US4475246A (en) * 1982-12-21 1984-10-02 Motorola, Inc. Simulcast same frequency repeater system
US4696052A (en) * 1985-12-31 1987-09-22 Motorola Inc. Simulcast transmitter apparatus having automatic synchronization capability

Also Published As

Publication number Publication date
WO1990004889A1 (fr) 1990-05-03
BR8907727A (pt) 1991-07-30
EP0439515A4 (en) 1992-03-18
AU4485389A (en) 1990-05-14
CA1306502C (fr) 1992-08-18
CA1316985C (fr) 1993-04-27
EP0439515A1 (fr) 1991-08-07

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