[go: up one dir, main page]

WO2006008993A1 - Systeme de visualisation d’emissions tv numeriques incorpore dans un ordinateur - Google Patents

Systeme de visualisation d’emissions tv numeriques incorpore dans un ordinateur Download PDF

Info

Publication number
WO2006008993A1
WO2006008993A1 PCT/JP2005/012741 JP2005012741W WO2006008993A1 WO 2006008993 A1 WO2006008993 A1 WO 2006008993A1 JP 2005012741 W JP2005012741 W JP 2005012741W WO 2006008993 A1 WO2006008993 A1 WO 2006008993A1
Authority
WO
WIPO (PCT)
Prior art keywords
program
video data
digital
data
program video
Prior art date
Application number
PCT/JP2005/012741
Other languages
English (en)
Japanese (ja)
Inventor
Masaru Yamanaka
Original Assignee
Zentek Technology Japan, 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 Zentek Technology Japan, Inc. filed Critical Zentek Technology Japan, Inc.
Publication of WO2006008993A1 publication Critical patent/WO2006008993A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/4143—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a Personal Computer [PC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof

Definitions

  • the present invention relates to a digital TV broadcast viewing system mounted on a computer equipped with an AGP bus and a PCI bus, and more specifically, after satisfying the copyright protection regulations of broadcast programs.
  • the present invention relates to a digital TV broadcast viewing system mounted on a computer that displays digital TV broadcast program video with high image quality.
  • Digital TV broadcasting systems can broadcast programs with much higher image quality than conventional analog TV broadcasting systems by using highly efficient data compression technology.
  • digital data program data
  • recording without image quality deterioration can be performed.
  • provisions for protecting the copyrights of program providers and producers by preventing illegal copying and illegal distribution via the network are stipulated by the Radio Industry Association Standards “ARIB TR-B14 Volume 2”, “ ARIB TR-B15 Volume 2 ”,“ ARIB TR-B14 Volume 8 ”, etc. (hereinafter referred to as“ ARIB specification ”in this specification).
  • the computer is equipped with a user access bus (AGP, PCI, IDE, SCSI, etc .: hereinafter referred to as a general-purpose bus) from which digital data can be directly extracted, and the digital TV broadcast program data and the program are provided on the general-purpose bus.
  • AGP user access bus
  • PCI PCI
  • IDE IDE
  • SCSI SCSI
  • a general-purpose bus a user access bus from which digital data can be directly extracted
  • the digital TV broadcast program data and the program are provided on the general-purpose bus.
  • high-quality TV programs can be copied without deterioration.
  • Data related to the high-quality program can be transferred to other computers via the network.
  • handling of data related to programs containing high-resolution video called HD content is strictly regulated by the above ARIB specifications.
  • An object of the present invention is to provide an image display that is standardly installed in a computer without a high-level processing function such as a succinct cipher in a computer equipped with a general-purpose bus from which digital data can be easily extracted, such as a personal computer.
  • One aspect of the present invention for achieving the above object is a digital TV broadcast viewing system mounted on a computer having an AGP bus and a PCI bus, which includes a tuner board, a graphic board, a data transfer cable, The tuner board is installed in the expansion slot of the PCI bus, and the antenna power is also input.
  • Channel selection means for selecting a specified channel from a broadcast radio signal and broadcasting on the selected channel
  • Decompression means for decompressing program data obtained by compressing and encoding the video and audio of the program and outputting program video data that becomes uncompressed digital data of the program video; and a program video data output terminal for outputting the program video data;
  • the graphic board is installed in the expansion slot of the AGP bus, and the program video data input terminal for inputting the program video data, and the digital video data is processed into a digital display data in a format suitable for a predetermined standard display.
  • the program video data transfer cable has a wired connection between the program video data output terminal and the program video data input terminal.
  • the control means controls the tuner board via the PCI bus and the graphic board via the AGP bus by executing a program installed in the computer, and selects the tuning control process, the expansion control process, and the video composition control. Processing and video output control processing,
  • the tuning control process allows the channel specified by the user input to be tuned by the tuning means on the tuner board,
  • the program data being broadcast on the channel selected by the decompression means is output from the program video data output terminal.
  • the frame image generation process generates frame image data that is the origin of the generation of the image that will be the frame of the TV program screen, sends it to the AGP bus,
  • the program video data from the program video data input terminal and the frame image data are supplied to the graphics processing means and converted into digital display data of the video in which the program video is inserted into the frame.
  • FIG. 1 is a functional block diagram of a digital TV broadcast viewing system in an embodiment of the present invention.
  • FIG. 1 shows a functional block configuration of a digital TV viewing system (hereinafter, viewing system) in an embodiment of the present invention.
  • Viewing system 1 is installed in a general desktop personal computer (PC) 100 equipped with AGP bus 5 and PCI bus 6.
  • Viewing system 1 as hardware is installed in the expansion slot of AGP bus 5.
  • Program board data to be connected between the graphic board 20 and the tuner board 10 installed in the expansion slot of the PCI bus 6 and the connectors 14 and 22 arranged on the two boards 10 and 20, respectively.
  • Data transfer cable (transfer cable) 30 are used, for the connection between the two boards 10 and 20, the connectors 14 and 22 are not used, only the terminals are arranged on the boards 10 and 20, and the connection between the terminals is directly connected with the transfer cable. Also good.
  • Software TV viewing program for controlling the two expansion boards is installed on the PC100.
  • the tuner board 10 has an antenna terminal 11, a channel selection function 12 for inputting a radio signal transmitted from the antenna terminal 11 by the digital TV broadcasting system, and selecting a specified channel from the radio signal, and a channel selection function 12.
  • a decompression function 13 that decompresses program data that is compression-encoded video and audio of a program being broadcast on a station channel and outputs program video data that is uncompressed digital data, and a program that outputs program video data
  • the video data output terminal 14 and other functional configurations are provided.
  • a remote control device 18 for receiving and a function 15 for receiving a radio signal by infrared rays or radio waves transmitted from the remote control device 18.
  • the graphic board 20 is an expansion board compliant with the well-known APG standard.
  • the main function of the graphic board 20 is that when the data that is the origin of computer image generation is transferred via the AGP bus 5, the bitmap corresponding to the computer image is expanded into the internal video RAM, and the bitmap data Is a function (graphics processing function) 21 that converts the video signal (display output data) into a format suitable for an externally connected display.
  • the graphics processing function 21 in this embodiment DVI-D standard RGB data suitable for the digital display 40 is used as display output data.
  • the Draft Board 20 is equipped with only the connector (display output terminal) 23 in the form and terminal layout conforming to the DVI-D standard as the display output data output system, and the display output data in the digital RGB format is displayed and output. Output from terminal 23.
  • An intermediate frequency (IF) signal that has been Z-converted and received by a parabolic antenna 50 or the like is input to the tuner board 10 via the antenna terminal 11.
  • IF intermediate frequency
  • Receive function 15 gives it to channel selection function 12 of tuner board 10.
  • Tuning function 12 synchronizes with the IF signal of the selected channel and sets the origin of the video and audio of the program being broadcast on that channel.
  • the program data compressed and encoded in a predetermined format such as the MPEG2 standard is extracted.
  • the decompression function 13 decodes the program data video and audio. Further, the decompression function 13 decompresses program data that is scrambled and broadcasted using the descrambling information decrypted by the IC card via the IC card interface 16 as necessary.
  • the program video is decoded into non-compressed digital color difference (Y, Cr, Cb, or Y, Pr, Pb) data (program video data) that is the origin of the data encoded by compression.
  • Digital color difference data is converted into digital RGB data consisting of gradation information and luminance information for the three primary colors of RGB, and this RGB data is also used as program video data.
  • the decompression function 13 decodes the audio of the program into PCM data.
  • the PC M data is DZA converted into an analog audio signal by the audio processing function 7 of the PC 100 and then output to an external sound output device 60 such as a speaker or an amplifier.
  • an external sound output device 60 such as a speaker or an amplifier.
  • a well-known PCI connection type sound board is used as the audio processing function 7.
  • the voice processing function is standard on the mother board of the PC.
  • program video data is sent to a general-purpose bus such as PCI bus 6 by using the encryption key unique to the tuner board and encrypted using the DTCP method.
  • a processing function is required. Therefore, in this embodiment, the program video data is not transmitted to the PCI bus 6 but is output from the dedicated terminal (program video data output terminal) 14.
  • the program data is prevented from being illegally copied or distributed by, for example, a recording function or a network communication function installed in the PC 100.
  • the PC 100 controls the graphic board 20 in parallel with controlling the tuner board 10 by executing the TV viewing program, and frame image data serving as the source of the frame image into which the video of the TV program is inserted. Generation.
  • the frame image data is given to the graphic board 20 via the APG bus 5, and corresponds to, for example, a window frame indicating a display area for each application provided by the Windows (registered trademark) GUI.
  • the inside of the frame is specific such as magenta One color is designated, and an image different from the frame image is inserted and displayed on the graphic board 20 in this specific color portion by a known overlay.
  • the graphic board 20 is provided with a program video data input terminal 22 on the board for dedicated input of program video data from the program video data output terminal 14 of the tuner board 10, and these program video data. Input / output terminals 14 and 22 are connected by transfer cable 30.
  • transfer cable 30 By configuring the program video data to be transferred by the transfer cable 30, it is possible to transfer the program video data from the tuner board 10 to the graphic board 20 responsible for the overall image rendering processing in the computer 100 without going through the general-purpose bus. Become.
  • the PCI standard has an extended standard called "PCI Express" having a higher transfer speed.
  • PCI Express an extended standard.
  • the “PCI” in the present invention naturally includes its extended standard.
  • the viewing system of the present invention can transfer program video data at high speed without depending on the PCI standard of the computer on which the viewing system is installed.
  • the graphic board 20 Based on the frame image data transferred via the AGP bus 5 and the control information, the graphic board 20 sequentially maps an image in which a TV image is inserted into the window frame in a TV broadcast frame period. expand.
  • the ARIB specification stipulates that it is desirable to send digital video signals in order to implement HDCP specification copyright protection technology.
  • the graphic board 20 has a DVI-D standard display output terminal 23 There is only. According to the rules cited above, it is also possible to adopt a configuration that outputs a display output terminal of the HDMI standard and video display data compliant with the standard.
  • the graphic board 20 can be connected to a VGA analog RG B terminal, DVI-I terminal, etc.
  • a configuration in which a terminal for outputting an analog video signal is also conceivable.
  • the AGP bus or PCI bus expansion slot may be connected to an additional board equipped with a digital TV broadcast channel selection / decompression function (tuner function).
  • the control data for the power supply and tuner function is given to the additional board via the graphic board, and the program video data output by the tuner function is not sent on a general-purpose bus such as AGP or PCI. Give directly from the board to the graphics board.
  • an add-on board equipped with a tuner function is attached to a graphic board having a program video data input terminal similar to the above-described embodiment in “retrofitting”, and the program video data output terminal on the additional board is connected to the graphic board.
  • a form of connecting the program video data input terminal of the board with a transfer cable can be considered.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

Ordinateur offrant un affichage de haute qualité de programmes d’émissions TV numériques, se conformant aux réglementations de protection de droits d’auteur. Un système de visualisation d’émissions TV numériques comprend une carte de syntoniseur qui est insérée dans un connecteur d’extension de bus PCI et qui comprend des moyens de sélection de stations, des moyens de décompression et des données vidéo de programmes numériques décompressés de terminal reçues des moyens de décompression ; une carte graphique qui est insérée dans un connecteur d’extension de bus AGP et qui comprend un terminal d’entrée de données vidéo de programme, des moyens pour convertir des données vidéo de format numérique en données d’affichage numériques d’un standard prédéterminé, et un terminal pour sortir extérieurement les données d’affichage numériques ; un câble pour brancher les terminaux d’entrée et de sortie de données vidéo de programme ; et des moyens de commande pour commander la carte de syntoniseur par l’intermédiaire du bus PCI et commander en outre la carte graphique par l’intermédiaire du bus AGP pour exécuter une commande de sélection de stations, une commande de décompression, une commande de combinaison vidéo et une commande de sortie vidéo.
PCT/JP2005/012741 2004-07-20 2005-07-11 Systeme de visualisation d’emissions tv numeriques incorpore dans un ordinateur WO2006008993A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004-211926 2004-07-20
JP2004211926A JP2006033608A (ja) 2004-07-20 2004-07-20 コンピュータに搭載されるデジタルｔｖ放送視聴システム

Publications (1)

Publication Number Publication Date
WO2006008993A1 true WO2006008993A1 (fr) 2006-01-26

Family

ID=35785109

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/012741 WO2006008993A1 (fr) 2004-07-20 2005-07-11 Systeme de visualisation d’emissions tv numeriques incorpore dans un ordinateur

Country Status (2)

Country Link
JP (1) JP2006033608A (fr)
WO (1) WO2006008993A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003196231A (ja) * 2001-12-28 2003-07-11 Sharp Corp バス制御装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003196231A (ja) * 2001-12-28 2003-07-11 Sharp Corp バス制御装置

Also Published As

Publication number Publication date
JP2006033608A (ja) 2006-02-02

Similar Documents

Publication Publication Date Title
US10957278B2 (en) Display apparatus
US7565530B2 (en) Source device and method for controlling output to sink device according to each content
US6243772B1 (en) Method and system for coupling a personal computer with an appliance unit via a wireless communication link to provide an output display presentation
JP4785687B2 (ja) 映像制御装置及びその方法
US7680279B2 (en) Image display system
US20040125953A1 (en) Broadcasting signal output apparatus and method thereof
CN101742167B (zh) 视频处理电路以及将视频输出流与图形流合并传输的方法
CA2253201A1 (fr) Systeme informatique numerique sans fil domestique
TW200526038A (en) Controlling the overlay of multiple video signals
EP1344400A2 (fr) Systeme de transmission par chiffrement
US7739745B2 (en) Information-processing apparatus, information-processing method, program, and storage medium
JP2006019947A (ja) テレビジョン受信機
JP2008090889A (ja) 情報処理装置および再生方法
JP2009044400A (ja) 画像表示装置
WO2006008993A1 (fr) Systeme de visualisation d’emissions tv numeriques incorpore dans un ordinateur
US20090086095A1 (en) Method and apparatus for overlaying encoded streams
KR100662459B1 (ko) Ｈｄｍｉ 수신기 및 전송기 개발 장치 및 그 방법
US9509921B2 (en) Video processing circuit and related method for merging video output streams with data stream for transmission
JP2007139866A (ja) 映像信号処理システム
US20080060015A1 (en) Digital Broadcast Reception System
US8065707B1 (en) HDTV set-top box/PC client/server secure video system
JP2007180905A (ja) 情報処理システム
JP2007067459A (ja) 情報処理システム
JP2006108962A (ja) 情報処理装置および方法、プログラム並びに記録媒体
KR20050092186A (ko) Ｄｖｉ 텔레비젼의 모드변경방법

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase