CA2085128A1 - Method for broadcasting a digitally coded stream of data - Google Patents

Method for broadcasting a digitally coded stream of data

Info

Publication number
CA2085128A1
CA2085128A1 CA2085128A CA2085128A CA2085128A1 CA 2085128 A1 CA2085128 A1 CA 2085128A1 CA 2085128 A CA2085128 A CA 2085128A CA 2085128 A CA2085128 A CA 2085128A CA 2085128 A1 CA2085128 A1 CA 2085128A1
Authority
CA
Canada
Prior art keywords
frequency
services
service
carriers
sense
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.)
Granted
Application number
CA2085128A
Other languages
French (fr)
Other versions
CA2085128C (en
Inventor
Georg Plenge
Gunter Schneeberger
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.)
Institut fuer Rundfunktechnik GmbH
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 CA2085128A1 publication Critical patent/CA2085128A1/en
Application granted granted Critical
Publication of CA2085128C publication Critical patent/CA2085128C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H04H20/33—Arrangements for simultaneous broadcast of plural pieces of information by plural channels

Abstract

In order to permit an already occupied frequency spectrum to be utilized for the radio transmission of a data stream without interfering with the services already established there, a plurality of the RF carriers modulated with the data stream are either transmitted in the frequency gap between two adjacent frequency FM services at the same location or in the free frequency ranges at both sides of an FM service, while leaving out its rated frequency occupation. Compared to the level of the RF carrier of the adjacent frequency FM service or the FM service in the middle, the level of the plurality of RF carriers is selected to be sufficiently low in the sense of a signal to noise ratio that is sufficient for FM reception of the FM service or services. Moreover, the mentioned level is selected to be sufficiently high in the sense of noise immunity against more remote FM services which fall into the frequency range or frequency gap intended for the transmission of the plurality of RF carriers. The data stream modulating the RF
carriers is provided with increased error protection in the sense of providing sufficient noise immunity against the adjacent frequency FM service or services or the FM service or services in the middle.
CA002085128A 1991-04-11 1992-04-08 Method for broadcasting a digitally coded stream of data Expired - Lifetime CA2085128C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4111855.3 1991-04-11
DE4111855A DE4111855C2 (en) 1991-04-11 1991-04-11 Method for the radio transmission of a digitally coded data stream

Publications (2)

Publication Number Publication Date
CA2085128A1 true CA2085128A1 (en) 1992-10-12
CA2085128C CA2085128C (en) 1998-06-16

Family

ID=6429376

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002085128A Expired - Lifetime CA2085128C (en) 1991-04-11 1992-04-08 Method for broadcasting a digitally coded stream of data

Country Status (6)

Country Link
US (1) US5499271A (en)
JP (1) JPH0795726B2 (en)
KR (1) KR960008327B1 (en)
CA (1) CA2085128C (en)
DE (1) DE4111855C2 (en)
WO (1) WO1992019053A1 (en)

Families Citing this family (28)

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Publication number Priority date Publication date Assignee Title
DE4241068C2 (en) * 1992-12-05 2003-11-13 Thomson Brandt Gmbh Method for transmitting, storing or decoding a digital additional signal in a digital audio signal
US5465396A (en) * 1993-01-12 1995-11-07 Usa Digital Radio Partners, L.P. In-band on-channel digital broadcasting
IL114471A0 (en) * 1994-07-12 1996-01-31 Usa Digital Radio Partners L P Method and system for simultaneously broadcasting and analog signals
US5956624A (en) * 1994-07-12 1999-09-21 Usa Digital Radio Partners Lp Method and system for simultaneously broadcasting and receiving digital and analog signals
US5633896A (en) * 1996-02-21 1997-05-27 Usa Digital Radio Partners, L.P. AM compatible digital waveform demodulation using a dual FFT
JPH11509066A (en) * 1995-08-31 1999-08-03 ユーエスエイ・ディジタル・レーディオ・パートナズ・エル ピイ AM compatible digital waveform demodulation using double FFT
US7046694B2 (en) * 1996-06-19 2006-05-16 Digital Radio Express, Inc. In-band on-channel digital broadcasting method and system
US5949796A (en) 1996-06-19 1999-09-07 Kumar; Derek D. In-band on-channel digital broadcasting method and system
US6757913B2 (en) 1996-07-15 2004-06-29 Gregory D. Knox Wireless music and data transceiver system
US5790514A (en) * 1996-08-22 1998-08-04 Tellabs Operations, Inc. Multi-point OFDM/DMT digital communications system including remote service unit with improved receiver architecture
US6771590B1 (en) * 1996-08-22 2004-08-03 Tellabs Operations, Inc. Communication system clock synchronization techniques
US6118758A (en) * 1996-08-22 2000-09-12 Tellabs Operations, Inc. Multi-point OFDM/DMT digital communications system including remote service unit with improved transmitter architecture
FR2756686B1 (en) * 1996-11-29 1999-02-19 Thomson Csf METHOD AND DEVICE FOR ANALOG AND DIGITAL MIXED BROADCASTING OF RADIO TRANSMISSION BROADCASTED BY THE SAME TRANSMITTER
US6075813A (en) * 1997-03-18 2000-06-13 Lucent Technologies Inc. Band insertion and precancellation technique for simultaneous communication of analog frequency modulated and digitally modulated signals
US6005894A (en) * 1997-04-04 1999-12-21 Kumar; Derek D. AM-compatible digital broadcasting method and system
US6751232B1 (en) * 1997-12-22 2004-06-15 Nortel Networks Limited Method and apparatus for communicating data between first and second pairs of transceivers communicating on a common communications link
ES2389626T3 (en) 1998-04-03 2012-10-29 Tellabs Operations, Inc. Shortening filter for impulse response, with additional spectral restrictions, for transmission of multiple carriers
US7440498B2 (en) * 2002-12-17 2008-10-21 Tellabs Operations, Inc. Time domain equalization for discrete multi-tone systems
US6631175B2 (en) * 1998-04-03 2003-10-07 Tellabs Operations, Inc. Spectrally constrained impulse shortening filter for a discrete multi-tone receiver
US6292511B1 (en) * 1998-10-02 2001-09-18 Usa Digital Radio Partners, Lp Method for equalization of complementary carriers in an AM compatible digital audio broadcast system
US6295317B1 (en) 1998-10-02 2001-09-25 Usa Digital Radio Partners, Lp Method and apparatus for demodulating and equalizing an AM compatible digital audio broadcast signal
US6259893B1 (en) 1998-11-03 2001-07-10 Ibiquity Digital Corporation Method and apparatus for reduction of FM interference for FM in-band on-channel digital audio broadcasting system
US6765929B1 (en) * 1999-02-05 2004-07-20 Lucent Technologies Inc. Method and apparatus for combining signals
US6721337B1 (en) 1999-08-24 2004-04-13 Ibiquity Digital Corporation Method and apparatus for transmission and reception of compressed audio frames with prioritized messages for digital audio broadcasting
US6549544B1 (en) * 1999-11-10 2003-04-15 Ibiquity Digital Corporation Method and apparatus for transmission and reception of FM in-band on-channel digital audio broadcasting
US6523147B1 (en) 1999-11-11 2003-02-18 Ibiquity Digital Corporation Method and apparatus for forward error correction coding for an AM in-band on-channel digital audio broadcasting system
US6529868B1 (en) * 2000-03-28 2003-03-04 Tellabs Operations, Inc. Communication system noise cancellation power signal calculation techniques
US7065153B2 (en) * 2002-02-06 2006-06-20 The Boeing Company High speed monolithic microwave integrated circuit (MMIC) quadrature phase shift keying (QPSK) and quadrature amplitude modulation (QAM) modulators

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2604316B2 (en) * 1986-07-02 1989-05-05 France Etat METHOD AND INSTALLATION FOR COMMUNICATING DIGITAL DATA TO MOBILES
DE3633882A1 (en) * 1986-10-04 1988-04-14 Inst Rundfunktechnik Gmbh DIGITAL RADIO TRANSMISSION SYSTEM
US5038402A (en) * 1988-12-06 1991-08-06 General Instrument Corporation Apparatus and method for providing digital audio in the FM broadcast band
US5315583A (en) * 1991-04-11 1994-05-24 Usa Digital Radio Method and apparatus for digital audio broadcasting and reception

Also Published As

Publication number Publication date
JPH0795726B2 (en) 1995-10-11
CA2085128C (en) 1998-06-16
US5499271A (en) 1996-03-12
JPH06500448A (en) 1994-01-13
DE4111855C2 (en) 1994-10-20
KR930701033A (en) 1993-03-16
DE4111855A1 (en) 1992-10-15
WO1992019053A1 (en) 1992-10-29
KR960008327B1 (en) 1996-06-24

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Effective date: 20120408