CA2224786A1 - Method and device for transmitting additional data in television channels - Google Patents

Method and device for transmitting additional data in television channels

Info

Publication number
CA2224786A1
CA2224786A1 CA002224786A CA2224786A CA2224786A1 CA 2224786 A1 CA2224786 A1 CA 2224786A1 CA 002224786 A CA002224786 A CA 002224786A CA 2224786 A CA2224786 A CA 2224786A CA 2224786 A1 CA2224786 A1 CA 2224786A1
Authority
CA
Canada
Prior art keywords
additional
picture
transmission
signals
procedure
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
CA002224786A
Other languages
French (fr)
Other versions
CA2224786C (en
Inventor
Rudolf-Werner Lorenz
Adolf Finger
Hartmut Hiller
Oliver Gotting
Jens Schonthier
Frank Poegel
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.)
Deutsche Telekom AG
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 CA2224786A1 publication Critical patent/CA2224786A1/en
Application granted granted Critical
Publication of CA2224786C publication Critical patent/CA2224786C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/084—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the horizontal blanking interval only
    • H04N7/085—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the horizontal blanking interval only the inserted signal being digital

Abstract

In the terrestrial transmission network infrastructure, test lines and videotext are already carried mainly in the picture-free lines. Additional wireless services often fail as a result of the high cost of television studios and a shortage of frequencies. The present invention accordingly aims to make even fuller use of unused channel capacity in a TV channel for additional signals. At both the transmission and receiving ends, the signal pulses for additional video and audio data to be transmitted are formed from the FBAS useful signal by counting, evaluation and decision operations. The two signals are separated, digitised, stored, buffered and compressed at the transmission end before being superimposed on the useful signal.
At the receiving end, following identical signal pulse generation, the same steps are executed in reverse order. The procedure can be carried out at the transmission end using additional equipment and at the receiving end by computer software or additional devices installed in the TV set. The procedure can be used for any additional picture and sound signals. A preferred special application is a communal picture broadcast in the manner of a slide demonstration.
CA002224786A 1995-06-16 1996-06-14 Method and device for transmitting additional data in television channels Expired - Fee Related CA2224786C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19522590.2 1995-06-16
DE19522590A DE19522590C2 (en) 1995-06-16 1995-06-16 Method and device for additional data transmission in TV channels
PCT/DE1996/001060 WO1997000576A1 (en) 1995-06-16 1996-06-14 Method and device for transmitting additional data in television channels

Publications (2)

Publication Number Publication Date
CA2224786A1 true CA2224786A1 (en) 1997-01-03
CA2224786C CA2224786C (en) 2005-08-09

Family

ID=7764921

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002224786A Expired - Fee Related CA2224786C (en) 1995-06-16 1996-06-14 Method and device for transmitting additional data in television channels

Country Status (15)

Country Link
US (1) US6055020A (en)
EP (1) EP0749239B1 (en)
AT (1) ATE195208T1 (en)
CA (1) CA2224786C (en)
CZ (1) CZ289102B6 (en)
DE (2) DE19522590C2 (en)
DK (1) DK0749239T3 (en)
ES (1) ES2151104T3 (en)
GR (1) GR3034683T3 (en)
HU (1) HUP9601605A3 (en)
NO (1) NO311478B1 (en)
PT (1) PT749239E (en)
RU (1) RU2193824C2 (en)
SK (1) SK283822B6 (en)
WO (1) WO1997000576A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6696499B1 (en) * 1996-07-11 2004-02-24 Life Medical Sciences, Inc. Methods and compositions for reducing or eliminating post-surgical adhesion formation
US6211249B1 (en) * 1997-07-11 2001-04-03 Life Medical Sciences, Inc. Polyester polyether block copolymers
DE19904956C2 (en) * 1999-02-06 2001-05-10 Univ Dresden Tech Method and device for optimally setting the sampling time for digital additional data transmission in analog TV channels
US6579951B1 (en) * 1999-06-08 2003-06-17 Life Medical Sciences, Inc. Chain-extended or crosslinked polyethylene oxide/polypropylene oxide/polyethylene oxide block polymer with optional polyester blocks
DE10101750A1 (en) * 2000-09-21 2002-04-18 Matthias Zahn Method for the transmission of data with a television signal
US7057666B2 (en) 2000-10-24 2006-06-06 Harris Corporation System and method for encoding information into a video signal
US7471244B2 (en) * 2001-02-02 2008-12-30 Rosum Corporation Monitor units for television signals
US20020184653A1 (en) 2001-02-02 2002-12-05 Pierce Matthew D. Services based on position location using broadcast digital television signals
US20090138911A1 (en) * 2007-11-27 2009-05-28 Diane Garza Flemming Video broadcasting system
KR101356321B1 (en) * 2010-02-19 2014-01-29 엘지디스플레이 주식회사 Image display device
US9819892B2 (en) * 2015-05-21 2017-11-14 Semtech Canada Corporation Error correction data in a video transmission signal

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE313406C (en) *
US3576391A (en) * 1968-06-26 1971-04-27 Rca Corp Television system for transmitting auxiliary information during the vertical blanking interval
GB1425637A (en) * 1973-02-15 1976-02-18 British Broadcasting Corp Television systems
GB1467240A (en) * 1973-09-04 1977-03-16 Gen Electric Co Ltd Television systems
DE2529728A1 (en) * 1973-10-08 1977-01-20 Standard Elektrik Lorenz Ag Television system with integrated audio signal transmission
DE2516742A1 (en) * 1975-04-16 1976-10-28 Standard Elektrik Lorenz Ag Black and white and colour TV transmission system - can be coded by PAL or NTSC system
DE2705342C3 (en) * 1977-02-09 1979-11-29 Standard Elektrik Lorenz Ag, 7000 Stuttgart Color television system with additional transmission of sound signals on the rear blanking shoulder
FR2389290A1 (en) * 1977-04-29 1978-11-24 Briand Marcel DEVICE FOR TRANSMISSION AND RECEPTION BY ANALOGUE LINES OF VIDEO-PHONE SIGNALS AND DIGITAL SIGNALS
DE2901034C3 (en) * 1979-01-12 1984-08-09 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth Method and circuit arrangement for the compression and decompression of analog signals in digital form
DE3103406C2 (en) * 1981-02-02 1983-11-17 Aeg-Telefunken Ag, 1000 Berlin Und 6000 Frankfurt Method for the transmission of digital audio signals in the horizontal blanking period of the video signal
US4783699A (en) * 1985-07-31 1988-11-08 Depaul Albert D Apparatus and method for transmitting information by modulated video signal
DE3732111A1 (en) * 1987-09-24 1989-04-06 Bosch Gmbh Robert METHOD FOR ADAPTING VIDEO AND AUDIO SIGNALS TO A REFERENCE SIGNAL
US4969041A (en) * 1988-09-23 1990-11-06 Dubner Computer Systems, Inc. Embedment of data in a video signal
US5014125A (en) * 1989-05-05 1991-05-07 Cableshare, Inc. Television system for the interactive distribution of selectable video presentations
US5309235A (en) * 1992-09-25 1994-05-03 Matsushita Electric Corporation Of America System and method for transmitting digital data in the overscan portion of a video signal

Also Published As

Publication number Publication date
HUP9601605A2 (en) 1997-05-28
HUP9601605A3 (en) 1998-10-28
NO311478B1 (en) 2001-11-26
SK283822B6 (en) 2004-02-03
EP0749239A2 (en) 1996-12-18
DE59605670D1 (en) 2000-09-07
CZ160096A3 (en) 1997-02-12
ATE195208T1 (en) 2000-08-15
DK0749239T3 (en) 2000-12-18
DE19522590C2 (en) 2001-05-17
RU2193824C2 (en) 2002-11-27
WO1997000576A1 (en) 1997-01-03
CZ289102B6 (en) 2001-11-14
US6055020A (en) 2000-04-25
NO962480L (en) 1996-12-17
DE19522590A1 (en) 1996-12-19
SK77796A3 (en) 1998-07-08
NO962480D0 (en) 1996-06-12
GR3034683T3 (en) 2001-01-31
ES2151104T3 (en) 2000-12-16
EP0749239A3 (en) 1997-01-02
EP0749239B1 (en) 2000-08-02
CA2224786C (en) 2005-08-09
HU9601605D0 (en) 1996-07-29
PT749239E (en) 2001-01-31

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed