EP1041758A3 - Method and system for extending broadcast coverage on a single frequency network - Google Patents

Method and system for extending broadcast coverage on a single frequency network Download PDF

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Publication number
EP1041758A3
EP1041758A3 EP00105296A EP00105296A EP1041758A3 EP 1041758 A3 EP1041758 A3 EP 1041758A3 EP 00105296 A EP00105296 A EP 00105296A EP 00105296 A EP00105296 A EP 00105296A EP 1041758 A3 EP1041758 A3 EP 1041758A3
Authority
EP
European Patent Office
Prior art keywords
tdm
signal
timing signal
studio
audio program
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.)
Withdrawn
Application number
EP00105296A
Other languages
German (de)
French (fr)
Other versions
EP1041758A2 (en
Inventor
William Rollins
Junius Kim
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.)
Harris Corp
Original Assignee
Harris Corp
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 Harris Corp filed Critical Harris Corp
Publication of EP1041758A2 publication Critical patent/EP1041758A2/en
Publication of EP1041758A3 publication Critical patent/EP1041758A3/en
Withdrawn legal-status Critical Current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
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/02—Arrangements for relaying broadcast information
    • H04H20/06—Arrangements for relaying broadcast information among broadcast stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/20—Aspects of broadcast communication characterised by the type of broadcast system digital audio broadcasting [DAB]

Abstract

A system for aligning the phase characteristics of N identical digitized audio program signals distributed from a studio to N broadcasting stations via N time division multiplex (TDM) communication signals includes N TDM multiplexers, each of which (i) multiplexes a digitized audio program signal into at least one channel of a TDM communication link established between the studio and one of the N broadcasting stations, and (ii) multiplexes a timing signal into another channel of the TDM communication signal. A TDM de-multiplexer at each of the broadcasting stations extracts the digitized audio program signal and the timing signal from the corresponding TDM communication signal. A timing signal comparator compares the extracted timing signal to a local timing signal that is delayed by a precise and adjustable amount, and produces an offset time corresponding to the comparison result. The delay adjust circuit dynamically adjusts the delay of the TDM signal as a function of the offset time, preferably so as to drive the offset time to substantially zero. The timing signal at the studio and the timing signals at each of the broadcast stations are provided by an existing time distribution network.
EP00105296A 1999-03-31 2000-03-14 Method and system for extending broadcast coverage on a single frequency network Withdrawn EP1041758A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28265299A 1999-03-31 1999-03-31
US282652 1999-03-31

Publications (2)

Publication Number Publication Date
EP1041758A2 EP1041758A2 (en) 2000-10-04
EP1041758A3 true EP1041758A3 (en) 2004-03-03

Family

ID=23082508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00105296A Withdrawn EP1041758A3 (en) 1999-03-31 2000-03-14 Method and system for extending broadcast coverage on a single frequency network

Country Status (3)

Country Link
EP (1) EP1041758A3 (en)
CN (1) CN1273465A (en)
TW (1) TW507428B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7512175B2 (en) * 2005-03-16 2009-03-31 Ibiquity Digital Corporation Method for synchronizing exporter and exciter clocks
EP2023511A4 (en) * 2006-05-24 2010-12-29 Zte Corp A synergetic transmitting system for digital broadcast sfn and method thereof
US7865610B2 (en) 2007-03-12 2011-01-04 Nautel Limited Point to multipoint reliable protocol for synchronous streaming data in a lossy IP network
CN101355778B (en) * 2007-07-27 2012-05-23 中兴通讯股份有限公司 Single frequency network system, working method thereof and mobile communication system superposing the same
FR2927747B1 (en) 2008-02-19 2010-03-19 Tdf METHOD FOR BROADCASTING A DATA STREAM IN A NETWORK COMPRISING A PLURALITY OF TRANSMITTERS, COMPUTER PROGRAM PRODUCT, NETWORK HEAD AND CORRESPONDING SYSTEM.
US8279908B2 (en) * 2008-12-31 2012-10-02 Ibiquity Digital Corporation Synchronization of separated platforms in an HD radio broadcast single frequency network
EP3018842B1 (en) 2014-11-04 2017-03-22 Schleifring und Apparatebau GmbH Method and device for the adjustment of contactless data links
BR112018069924A2 (en) 2016-03-29 2019-02-05 Gatesair Inc adaptive processing in time multiplexed signals

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515214A1 (en) * 1991-05-24 1992-11-25 BRITISH TELECOMMUNICATIONS public limited company Radio system with measurement and adjustment of transfer delay
WO1997020404A1 (en) * 1995-11-30 1997-06-05 Ericsson Inc. Rf simulcasting system with automatic wide-range dynamic synchronization
US5822324A (en) * 1995-03-16 1998-10-13 Bell Atlantic Network Services, Inc. Simulcasting digital video programs for broadcast and interactive services

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515214A1 (en) * 1991-05-24 1992-11-25 BRITISH TELECOMMUNICATIONS public limited company Radio system with measurement and adjustment of transfer delay
US5822324A (en) * 1995-03-16 1998-10-13 Bell Atlantic Network Services, Inc. Simulcasting digital video programs for broadcast and interactive services
WO1997020404A1 (en) * 1995-11-30 1997-06-05 Ericsson Inc. Rf simulcasting system with automatic wide-range dynamic synchronization

Also Published As

Publication number Publication date
EP1041758A2 (en) 2000-10-04
CN1273465A (en) 2000-11-15
TW507428B (en) 2002-10-21

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