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WO1998007275A1 - Ordinateur capable de recevoir des diffusions ou des emissions - Google Patents

Ordinateur capable de recevoir des diffusions ou des emissions Download PDF

Info

Publication number
WO1998007275A1
WO1998007275A1 PCT/EP1997/004386 EP9704386W WO9807275A1 WO 1998007275 A1 WO1998007275 A1 WO 1998007275A1 EP 9704386 W EP9704386 W EP 9704386W WO 9807275 A1 WO9807275 A1 WO 9807275A1
Authority
WO
WIPO (PCT)
Prior art keywords
teletext
data
page
computer
broadcasts
Prior art date
Application number
PCT/EP1997/004386
Other languages
English (en)
Inventor
Paul Bostock
Peter Horton
Colin Robinson
Original Assignee
Apricot Computers Limited
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 Apricot Computers Limited filed Critical Apricot Computers Limited
Priority to EP97918975A priority Critical patent/EP0860082A1/fr
Priority to JP10509405A priority patent/JP2000500316A/ja
Publication of WO1998007275A1 publication Critical patent/WO1998007275A1/fr

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
    • H04N7/0882—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 for the transmission of character code signals, e.g. for teletext

Definitions

  • the present invention provides a computer comprising data processing means and operably connected thereto, input means, output means and data storage means, wherein said input means comprise means for receiving and demodulating into data teletext or videotex broadcasts or transmissions and said data processing means comprise means for transferring teletext or videotex data to said data storage means for subsequent access and/or retrieval by said data processing means.
  • FIG. 3 shows schematically the arrangement and operation of the data processing means of a computer in a second embodiment of the invention
  • Fig. 4 shows the appearance of the display of a computer according to a third embodiment of the invention
  • Fig. 5 shows schematically both the arrangement of a computer in a fourth embodiment of the invention and the operation of the computer for receiving from the
  • Fig. 6 shows schematically both the arrangement of a computer in a fifth embodiment of the invention, wherein the computer is operably connected to means for recording television programmes, and the operation of the computer when programmed to transfer television transmissions or broadcasts to the means for recording television programmes on the basis of information contained in teletext received, demodulated and stored by the computer;
  • Fig. 7 shows one possible appearance of the display of a computer arranged as in Fig.
  • time and channel of a television programme are selected from teletext information on the display
  • the computer preferably comprises means 12 for retrieving teletext data from the data storage means 4 and conversion means 13 for converting teletext data into a format suitable for displaying at least one page of teletext.
  • the data storage means 4 is a dedicated cache on a hard disk
  • the hard disk read/write head, the control circuitry therefor and the previously mentioned CPU between them can provide the means 12 for retrieving teletext data and the conversion means 13 by suitable programming of the CPU.
  • the CPU can also be programed to provide means 14 for transferring the result of such a conversion to the output means 3.
  • An example of the integration of the television and teletext reception means 22 and 21 is provided by a printed circuit board bearing a television tuner, a digitizer for demodulating a television signal received by the tuner into data representing successive frames of television and a teletext chip for decoding the top four lines of each frame of television data thus demodulated into teletext information.
  • An alternative example in which the teletext reception means 21 and the television reception means 22 are not combined on the same printed circuit board has a software implementation of the teletext reception means 21 in place of the teletext chip for decoding the teletext information.
  • Such a software implementation of the teletext reception means 21 is made by suitable programming of the CPU previously mentioned.
  • the teletext reception means 21 may be said to form part of the data processing means 1 , rather than part of the input means 2.
  • Television broadcasts or transmissions received by the television reception means 22 may be transferred directly by the data processing means 1 to the screen monitor without intermediate storage in the data storage means 4. This is shown schematically in Fig. 3 by data transfer means 15.
  • Teletext broadcasts or transmissions may also be received, demodulated into data and the data transferred by means 1 1 to the data storage means 4 at the same time as a television programme is being received and displayed via data transfer means 15.
  • Teletext broadcasts may also be received and stored whilst the data processing means 1 is accessing and processing other data via the data transfer means 15 either from the input means 1 or from the data storage means 4, so that the computer may be operated for computing at the same time as it receives, demodulates and stores teletext "in the background”.
  • Teletext broadcasts or transmissions may also be received, demodulated into data and stored whilst the computer is otherwise not in operation. This latter alternative is achievable by programming the CPU to activate the transfer means 1 1 from its inoperable or "standby" mode to transfer teletext or videotext data to the data storage means 4 at a prespecifiable time.
  • the data processing means is preferably operable to assign the correct respective page of teletext to its respective icon 23. This may be achieved by initial programming of the CPU.
  • the input means 2 also preferably comprise means 25 for receiving information specifying which page of teletext the data processing means 1 is operable to assign to which icon 23.
  • the means 25 may be a keyboard and a mouse with the specifying information being supplied by the user of the computer.
  • the means 25 may be identical with the television and teletext reception means 22 and 21 , so that the specifying information is received along with the teletext information itself. Another alternative, as shown in Fig.
  • Both of the latter two alternatives for the means 25 may also be used to program the data processing means 1 from a remote iocation to transfer teletext data to the data storage means 4 at a prespecifiable time, for example in the early morning each day when the computer is unlikely to be used by its primary user.
  • the teletext data itself is in this case still received (as always) via the teletext reception means 21. Only the -information specifying the time at which the teletext data is to be stored has the possibility of instead being received over the Internet.
  • the means 25 may also be used to program the data processing means 1 from a remote location, to update the teletext data stored in the data storage means 4 at prespecifiable times throughout the day for user- definable pages of teletext, such as news pages.
  • the computer's primary (local) user may program the data processing means 1 to transfer teletext data to the data storage means 4 at a prespecifiable time or times throughout the day.
  • the input means comprise means for selecting a part 312 of a page 31 1 of teletext displayed by the display means 31 , so that, for example, the time and channel of a television programme may be selected from a page 31 1 of teletext which contains television programme listings, as shown in Fig. 7.
  • the means for selecting a part 312 of a page of teletext 31 1 is most readily provided by means of the mouse and its associated pointer, 24.
  • the data processing means 1 in this preferred embodiment also comprises an operable connection to means 5 for recording television programmes, such as a digital video disk (DVD) RAM drive, as shown schematically in Fig. 6, then the data processing means 1 may be programed to transfer television transmissions or broadcasts to the means 5 for recording television programmes on the basis of the time and channel of a television programme displayed in the part 312 selected from the page of teletext which contains television programme listings.
  • means 5 for recording television programmes such as a digital video disk (DVD) RAM drive
  • television programmes may thus be recorded by a user of this preferred embodiment of the invention in the absence of independently available information specifying the times and channels of television programmes, such as a television programme listings magazine, and on the basis of regularly updated - and hence more reliable - information.
  • the recording of television broadcasts or transmissions from the data processing means 1 to means 5 for recording television programmes requires the use of a PI 394 interface (known colloquially in the industry as "Fire Wire") as the operable connection between the data processing means 1 and the recording means 5.
  • the recording means 5 may at present be provided by a DVD RAM drive, as mentioned above, but not by a conventional video cassette recorder (VCR), which lacks the capability of connection through a PI 394 interface.
  • VCR video cassette recorder
  • Fig. 8 shows schematically one example of such a 32-bit application program linked to a 16-bit application program by thunking. Thunking is the process by which a 32-bit application program communicates with a 16-bit computer operating system.
  • a 32-bit self-executing application program 6 links to a set of 32-bit interface library routines 7.
  • a step-down thunk 8 in turn links the 32-bit interface library routines 7 to a set of 16-bit interface library routines 9.
  • the 16-bit interface library routines 9 are linked to 16-bit library routines executable by a computer operating system to implement the functions of the computer in this embodiment of the invention.
  • a computer operating system to implement the functions of the computer in this embodiment of the invention.
  • Such an implementation may be used to support any of various proprietary teletext or videotex services, such as Ceefax, Oracle and 4-Tel in the UK, German TopText and Japanese system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

Cette invention concerne un ordinateur qui possède un système de traitement des données (1) auquel sont reliés de manière fonctionnelle un système d'entrée (2), un système de sortie (3), ainsi qu'un système de stockage des données (4). Le système d'entrée (2) comprend à son tour un système (21) de réception et de démodulation des diffusions ou des émissions qui permet d'obtenir des données de type télétexte ou vidéotex. Le système de traitement des données (1) comprend quant à lui un système (11) qui va transférer les données de télétexte ou de vidéotex vers le système de stockage des données (4), ceci en vue d'un accès et/ou d'une extraction ultérieure à l'aide dudit système de traitement des données.
PCT/EP1997/004386 1996-08-13 1997-08-12 Ordinateur capable de recevoir des diffusions ou des emissions WO1998007275A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP97918975A EP0860082A1 (fr) 1996-08-13 1997-08-12 Ordinateur capable de recevoir des diffusions ou des emissions
JP10509405A JP2000500316A (ja) 1996-08-13 1997-08-12 放送または送信を受信可能なコンピュータ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9616958.6 1996-08-13
GB9616958A GB2316563A (en) 1996-08-13 1996-08-13 Computer able to Receive Broadcasts or Transmissions

Publications (1)

Publication Number Publication Date
WO1998007275A1 true WO1998007275A1 (fr) 1998-02-19

Family

ID=10798402

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/004386 WO1998007275A1 (fr) 1996-08-13 1997-08-12 Ordinateur capable de recevoir des diffusions ou des emissions

Country Status (4)

Country Link
EP (1) EP0860082A1 (fr)
JP (1) JP2000500316A (fr)
GB (1) GB2316563A (fr)
WO (1) WO1998007275A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2352914A (en) 1999-08-03 2001-02-07 Sony Uk Ltd Data broadcast method
GB0104521D0 (en) * 2001-02-23 2001-04-11 Gemstar Dev Ltd Improvements to television systems
US20030059200A1 (en) * 2001-09-25 2003-03-27 Koninklijke Philips Electronics N.V. Recording and re-insertion of teletext data
US7133062B2 (en) * 2003-07-31 2006-11-07 Polycom, Inc. Graphical user interface for video feed on videoconference terminal

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5121476A (en) * 1988-02-22 1992-06-09 Yee Keen Y TV data capture device
EP0503070A1 (fr) * 1990-08-10 1992-09-16 Matsushita Electric Industrial Co., Ltd. Systeme de transmission et recepteur associe
US5359367A (en) * 1989-10-09 1994-10-25 Videologic Limited Personal computer with broadcast receiver on expansion board controlled by computer microprocessor
GB2283399A (en) * 1993-10-02 1995-05-03 Amulet Electronics Ltd Remote controlled television distribution system
JPH07264497A (ja) * 1994-03-17 1995-10-13 Sony Corp 電子機器の情報呼び出しシステム
DE4431383A1 (de) * 1994-08-29 1996-03-14 Kaiser Matthias Dr Schnittstelle zur Verarbeitung von Videotextdaten
WO1996009721A1 (fr) * 1994-09-23 1996-03-28 News America Publications, Inc. Systeme et procede de creation d'un programme d'affichage d'informations pour un guide de programmation electronique
JPH08140065A (ja) * 1994-11-04 1996-05-31 Matsushita Electric Ind Co Ltd 文字放送受信装置
US5526127A (en) * 1992-09-22 1996-06-11 Sanyo Electric Co., Ltd. Video tape recorder which allows preset program recording

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5121476A (en) * 1988-02-22 1992-06-09 Yee Keen Y TV data capture device
US5359367A (en) * 1989-10-09 1994-10-25 Videologic Limited Personal computer with broadcast receiver on expansion board controlled by computer microprocessor
EP0503070A1 (fr) * 1990-08-10 1992-09-16 Matsushita Electric Industrial Co., Ltd. Systeme de transmission et recepteur associe
US5526127A (en) * 1992-09-22 1996-06-11 Sanyo Electric Co., Ltd. Video tape recorder which allows preset program recording
GB2283399A (en) * 1993-10-02 1995-05-03 Amulet Electronics Ltd Remote controlled television distribution system
JPH07264497A (ja) * 1994-03-17 1995-10-13 Sony Corp 電子機器の情報呼び出しシステム
DE4431383A1 (de) * 1994-08-29 1996-03-14 Kaiser Matthias Dr Schnittstelle zur Verarbeitung von Videotextdaten
WO1996009721A1 (fr) * 1994-09-23 1996-03-28 News America Publications, Inc. Systeme et procede de creation d'un programme d'affichage d'informations pour un guide de programmation electronique
JPH08140065A (ja) * 1994-11-04 1996-05-31 Matsushita Electric Ind Co Ltd 文字放送受信装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"INTELLIGENT HOME SYSTEM", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 34, no. 7A, 1 December 1991 (1991-12-01), pages 311 - 312, XP000255567 *
PATENT ABSTRACTS OF JAPAN vol. 096, no. 002 29 February 1996 (1996-02-29) *
PATENT ABSTRACTS OF JAPAN vol. 096, no. 009 30 September 1996 (1996-09-30) *

Also Published As

Publication number Publication date
JP2000500316A (ja) 2000-01-11
GB2316563A (en) 1998-02-25
GB9616958D0 (en) 1996-09-25
GB2316563A8 (en) 2003-05-28
EP0860082A1 (fr) 1998-08-26

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