EP2731098A1 - Système et procédé de liaison d'une installation d'écran avec une installation d'ordinateur - Google Patents

Système et procédé de liaison d'une installation d'écran avec une installation d'ordinateur Download PDF

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Publication number
EP2731098A1
EP2731098A1 EP12192197.7A EP12192197A EP2731098A1 EP 2731098 A1 EP2731098 A1 EP 2731098A1 EP 12192197 A EP12192197 A EP 12192197A EP 2731098 A1 EP2731098 A1 EP 2731098A1
Authority
EP
European Patent Office
Prior art keywords
interface
screen device
video data
operating mode
computer device
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.)
Ceased
Application number
EP12192197.7A
Other languages
German (de)
English (en)
Inventor
Günter Baitz
Martin Gries
Jörg Scherf
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.)
Wincor Nixdorf International GmbH
Original Assignee
Wincor Nixdorf International GmbH
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 Wincor Nixdorf International GmbH filed Critical Wincor Nixdorf International GmbH
Priority to EP12192197.7A priority Critical patent/EP2731098A1/fr
Publication of EP2731098A1 publication Critical patent/EP2731098A1/fr
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G5/006—Details of the interface to the display terminal
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2370/00—Aspects of data communication
    • G09G2370/04—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2370/00—Aspects of data communication
    • G09G2370/04—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
    • G09G2370/045—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller using multiple communication channels, e.g. parallel and serial
    • G09G2370/047—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller using multiple communication channels, e.g. parallel and serial using display data channel standard [DDC] communication
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2370/00—Aspects of data communication
    • G09G2370/12—Use of DVI or HDMI protocol in interfaces along the display data pipeline

Definitions

  • the invention relates to a system and a method for connecting a screen device with a computer device via an interface for video data transmission.
  • Such a system comprises a screen device, a computer device and an interface for video data transmission, via which the screen device is connected to the computer device for transmitting video data from the computer device to the screen device.
  • A1 known device for transmitting video data is a decentralized device in the form of a computer connected to a central device via a so-called DVI interface.
  • the central device also transmits control signals for providing z.
  • a DVI interface (DVI: Digital Visual Interface) represents a standardized interface for the transmission of video data. For example, by means of a DVI interface a monitor to a computer or a television to a (digital) signal source, such as a DVD player, are connected. In this case, analog and / or digital video data which can be displayed on a display device, for example a monitor or a television, are transmitted via the DVI interface.
  • DVI Digital Visual Interface
  • Such an interface for video data transmission is also used, for example, in point-of-sale systems which are used in a business environment, for example in retailing, and in which a screen device is connected to a computer device.
  • a screen device is connected to a computer device.
  • additional functions such as a touch function that allows the input of control commands by means of a touch-sensitive screen on the screen device, or an on and off function for the entire system on the screen device required.
  • Such functions are nowadays provided via additional cables via which the screen device is connected to the computer device, which leads to a considerable outlay in the installation of such systems as well as for maintenance and repair.
  • the object of the present invention is to provide a system and a method for connecting a screen device with a computer device via an interface for video data transmission, which enable the provision of additional functions on the screen device in a simple, cost-effective manner.
  • the computer device is designed to detect an identifier of the screen device and depending on the identifier of the screen device, the interface in a first operating mode for transmitting video data or in a second operating mode to operate for the transmission of video data and for the transmission of video data different, further signals.
  • the present invention is based on the idea of operating an interface, which is itself intended for video data transmission, in different modes for transmitting video data transmission in a first operating mode as usual, and in a second operating mode for transmitting video data, in addition to video data transmission Make video data different signals to provide additional functions on the screen device.
  • the interface is thus switchable and is operated in dependence on the identifier of the screen device, that is, depending on the configuration of the screen device, in the first operating mode or the second operating mode.
  • the screen device On the basis of the identifier is in particular recognized whether the screen device is designed to support the provided in the second mode additional functions. If this is the case, the interface is operated in the second operating mode. If this is not the case, the interface is operated in the first operating mode and thus as the usual interface for video data transmission.
  • the interface is preferably a standardized interface for video data transmission, in particular a DVI interface.
  • a DVI interface video data (graphic signals) for displaying video data are conventionally transmitted on the screen device.
  • a DVI interface can be designed here for transmitting analog video data, for transmitting digital video data or for transmitting both analog and digital video data.
  • a standardized interface in particular a DVI interface
  • a computer device Characterized in that the interface is designed switchable, conventional monitors that provide no additional functions, as well as dedicated monitors that provide additional functions for a cash register system, for example, are connected to a computer device, regardless of the specific design of the monitor uses the same interface can be. If it is a conventional monitor (without special additional functions), the interface is operated in the first operating mode, and as usual video data is transmitted for display on the screen device.
  • the computer device recognizes this on the basis of the identifier of the screen device and operates the interface accordingly in the second operating mode, in the video data and in addition further signals. which differ from the video data to be transmitted to provide the additional functions on the screen device.
  • the screen device can be connected via a common connection line with the computer device, wherein the computer device depending on the design of the screen device automatically detects whether video data in ordinary form or video data and additional signals to be provided to provide additional functions.
  • a display device If a display device is to be connected to the computer device, which is not configured to provide additional functions, the computer device recognizes this and operates the interface according to the first mode of operation for the transmission of video data and is thus compatible with such screen devices.
  • the computer device can thus be operated together with any screen devices, wherein, depending on the design of the screen device, the computer device just provides the data and functions for which the screen device is configured.
  • the switching between the different operating modes can be done for example by means of an electronic circuit which is arranged on a motherboard of the computer device.
  • a control device of the computer device for example the so-called BIOS of the computer device, detects the identifier of the screen device and controls the switching device accordingly to transmit video data via the interface in the first operating mode or video data in the second operating mode and additional, different signals from video data.
  • the further signals in the second operating mode can serve, for example, to provide an electrical supply to the screen device.
  • the electrical supply of the screen device thus takes place via the interface, so that can be dispensed with a separate power cord for the screen device.
  • the further signals in the second operating mode may also provide a function for inputting control commands to the display device (so-called touch function).
  • the screen device can have, for example, a touch-sensitive display device for inputting control commands.
  • control commands which are input via the touch-sensitive display device are then transmitted via the interface and passed to the computer device in order to be evaluated and processed there.
  • a touch function is thus provided on the screen device without the need for an additional data cable for connecting the screen device to the computer device.
  • the further signals in the second operating mode can also transmit audio signals to the screen device.
  • the audio signals may serve as feedback to the cashier for touching the screen (a so-called "touch-beep") or, when used as a customer screen, may be used to broadcast a sound of an advertisement or customer information.
  • an additional data interface for example a data interface for the transmission of digital data and additionally for the provision of a DC voltage, in particular in the form of a USB interface, can be provided by means of the further signals.
  • a USB port can be provided, wherein the signal transmission for the USB port via which the screen device connects to the computer device uniform interface.
  • An additional connection cable for providing a USB interface to the screen device is therefore not required.
  • the further signals in the second operating mode can provide an on and / or off function for the system on the screen device.
  • An operating device for example a button, can thus be provided on the screen device, via which the system can be switched on or off on the screen device.
  • the switch-off function can provide complete switching off of the system, ie complete disconnection of the system from the electrical supply, in which case the switch-on function makes it possible to switch on from the completely switched-off state.
  • switching to or from a sleeping energy-saving mode can also be provided.
  • the functions described above can be provided individually or in combination via the interface, so that individual or all functions are provided on the screen device via a uniform interface. Additionally or alternatively, other, other functions can also be provided via the interface. Thus, for example, it is also conceivable to provide a goods read function, a card reading function, a camera function, a fingerprint recognition function or the like via the uniform interface on the screen device, wherein the screen device in this case has corresponding equipment, for example a card reader, and which is required for activation Signals are transmitted in the second mode of operation via the uniform interface.
  • the computer device determines an identifier of the screen device and evaluates them depending on the identifier in the first operating mode as usual and corresponding to, for example, the standardized specification of the interface video data or in the second mode of operation in addition to transmit additional signals to provide one or more additional functions on the screen device.
  • the computer device can detect whether or not the screen device supports the second operating mode, and can thus conclude on the basis of the identifier that the Screen device is designed to provide additional features or not.
  • the computer device can advantageously also conclude which functions the screen device provides, so that, depending on the identifier, the signals are specifically transmitted via the interface, which are required to provide the functions supported by the screen device.
  • the detection of the identifier is advantageously carried out via a serial communication channel, which is provided via the interface for video data transmission.
  • This serial communication channel may be, for example, a so-called DDC interface, in the context of which data is transmitted between the screen device and the computer device via the interface and which enables identification of the screen device and the functions provided on the screen device (DDC : Display Data Channel, which is a standard serial communication interface that allows data exchange via a display cable and a screen configuration).
  • the interface for video data transmission thus provides a uniform interface for the transmission of further signals in the second operating mode. It is advantageous to provide all functions of the screen device and also the power supply via the interface, so that the screen device can be connected to the computer device via a single connection cable, which makes connection and maintenance of the screen device very easy.
  • a system of the type described here can be realized in particular as a cash register system for carrying out payment transactions.
  • a display device may be used which has a touch-sensitive screen for inputting control commands and additionally provides other functions such as a goods read function, a card reading function, a fingerprint recognition function or the like.
  • the provided interface which can be used either in the first operating mode or in the second operating mode, such a screen device can then be connected via a single connecting cable, which provides a uniform interface for providing all functions - in addition to the video data transmission - provides, to be connected to the computer device.
  • the object is also achieved by a method for connecting a screen device with a computer device via an interface for video data transmission.
  • an interface via which a screen device is connected to a computer device for transmitting video data from the computer device to the screen device, transmits video data from the computer device to the screen device.
  • the computer device detects an identification of the screen device and operates the interface in a first operating mode for transmitting video data or in a second operating mode for transmitting video data and for transmitting video signals different from other signals.
  • Fig. 1 shows a schematic view of a system having a computer device 1 in the form of a computer or server and a screen device 2 with a touch-sensitive display device 20.
  • the screen device 2 is connected to the computer device 1 via a connecting cable 31, which is plugged with plugs 30 into terminals 13, 21 on the computer device 1 on the one hand and the screen device 2 on the other.
  • FIG. 1 schematically illustrated system can realize, for example, a cash register system in which additional functions for performing a payment process to be provided on the screen device 2.
  • additional functions for performing a payment process to be provided on the screen device 2.
  • Control commands such as a commodity identification number
  • the screen device 2 can be connected, for example, to a goods scanner 22 (for example a barcode reader), a card reader 23 and / or a loudspeaker 24, via which a product can be read in, a credit or debit card can be read or audio signals are generated can.
  • a goods scanner 22 for example a barcode reader
  • a card reader 23 and / or a loudspeaker 24 via which a product can be read in, a credit or debit card can be read or audio signals are generated can.
  • the connecting cable 31 is used to connect the computer device 1 with the screen device 2 and realized here a uniform interface 3, which on the one hand for transmitting video data from the computer device 1 to the screen device 2 and on the other hand designed to transmit other signals to provide additional functions on the screen device 2 is.
  • a uniform interface 3 which on the one hand for transmitting video data from the computer device 1 to the screen device 2 and on the other hand designed to transmit other signals to provide additional functions on the screen device 2 is.
  • both video data and signals for providing e.g. a touch function, a goods reading function or a card reading function on the screen device 2 and additionally z. B. also transmit audio signals.
  • the interface 3 which is preferably configured as a standardized interface, in particular as a DVI interface, can be operated either in a first operating mode or in a second operating mode.
  • the first mode of operation serves to connect ordinary screen devices 2, which can or should not provide any further functions, to the computer device 1.
  • the second operating mode serves to connect screen devices 2, which can and should provide special functions, for example a touch function, a goods read function, a card reading function or the like, to the computer device 1 and signals required for the provision of these additional functions are to be transmitted via the interface 3.
  • an electrical power supply can also be provided via the interface 3 in the second operating mode, so that a single connecting cable 31 is sufficient to connect the screen device 2 designed to provide these additional functions to the computer device 1.
  • a switching device 12 is provided in the form of an electronic switch, by means of which in a suitable manner between the first Operating mode and the second operating mode can be switched. By means of the switching device 12 can thus be determined, in which way the interface 3 is driven in order to transmit video data or additionally also further signals via the interface 3 in a suitable manner.
  • the computer device 1 automatically detects whether the screen device 2 supports the second operating mode or not.
  • the computer device 1 determines in this case by means of a control device 10, which, e.g. is arranged on a motherboard 11, which is a screen device 2, and operates the interface 3 according to the first operating mode or in the second operating mode. Recognizes the controller 10, the z. B. can be realized by the so-called bios of a computer, for example, that the screen device 2 does not support additional functions, the computer device 1 operates the interface 3 in the first mode of operation and transmits as usual video data to the screen device 2, which on the screen device 2 can be displayed. On the other hand, if the computer device 1 recognizes that the screen device 2 supports additional functions in a manner compatible with the computer device 1, then the computer device 1 switches accordingly into the second operating mode and transmits the further signals required for the additional functions via the interface 3.
  • control device 10 detects which functions are provided on the screen device 2, so that the required signals can accordingly be transmitted via the interface 3. If the control device 10 detects that no additional functions of a screen device 2 can or should be made available, no further signals are correspondingly transmitted via the interface 3, so that the computer device 1 is compatible with any screen device.
  • the interface 3 preferably implements a standardized interface, in particular a DVI interface.
  • a plug 30, which can be used as part of a DVI interface in a connection cable 31, is shown schematically in FIG Fig. 2 and includes a number of so-called pins 300, which represent electrical contacts via which data transmission can take place.
  • a conventional DVI interface uses, for example, the standard TMDS for digital data transmission.
  • the DVI interface can be a simple connection (so-called “single link connection”) with a maximum transmission rate of 3.72 Gbit / s or a double connection (so-called “dual link connection”) with a maximum transmission rate of 7.44 Gbit / s, wherein a computing device 1 negotiates for example by means of a DDC interface with a screen device 2, which type of connection is to be used.
  • a first group of pins 301 for providing a first data connection and a second group of pins 302 for providing a second data connection wherein in a single-link connection only the first group of pins 301 is used while in the frame a dual-link connection via both the first group of pins 301 and the second group of pins 302 data are transmitted.
  • the control device 10 of the computer device 1 can detect, for example, whether the screen device 2 supports the second operating mode or not. If the screen device 2 does not support the second operating mode, then the interface 3 can be used as conventionally for the transmission of video data, for example by controlling the pins 300 of the plug 30 for the transmission of video data in the design of the interface 3 as a DVI interface. On the other hand, if the screen device 2 supports the second mode of operation, the DVI interface may transmit video data e.g. be limited to a single-link connection via the first group of pins 301, while on the second group of pins 302, for example, additional signals to provide additional functions of a screen device 2 are transmitted.
  • the additional signals can also be transmitted via other pins 300, which are not required for the transmission of video data.
  • interfaces for video data transmission can also be used, for example an HDMI interface or other standardized interfaces.
  • the interface is advantageously an interface for the transmission of digital video data, whereby it is also conceivable and possible to alternatively or additionally transmit analog video data via the interface.
EP12192197.7A 2012-11-12 2012-11-12 Système et procédé de liaison d'une installation d'écran avec une installation d'ordinateur Ceased EP2731098A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12192197.7A EP2731098A1 (fr) 2012-11-12 2012-11-12 Système et procédé de liaison d'une installation d'écran avec une installation d'ordinateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12192197.7A EP2731098A1 (fr) 2012-11-12 2012-11-12 Système et procédé de liaison d'une installation d'écran avec une installation d'ordinateur

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EP2731098A1 true EP2731098A1 (fr) 2014-05-14

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10315018A1 (de) * 2003-04-02 2004-10-14 Citron Gmbh Vorrichtung und Verfahren zum Übertragen von Videodaten
US20070024629A1 (en) * 2005-07-29 2007-02-01 Frederick John W Audio over a standard video cable
EP2111041A1 (fr) * 2008-04-17 2009-10-21 Sony Corporation Dispositif de traitement audio, procédé de traitement audio et programme
US20120080954A1 (en) * 2009-04-17 2012-04-05 St-Ericsson Sa Enhanced power in hdmi systems

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10315018A1 (de) * 2003-04-02 2004-10-14 Citron Gmbh Vorrichtung und Verfahren zum Übertragen von Videodaten
US20070024629A1 (en) * 2005-07-29 2007-02-01 Frederick John W Audio over a standard video cable
EP2111041A1 (fr) * 2008-04-17 2009-10-21 Sony Corporation Dispositif de traitement audio, procédé de traitement audio et programme
US20120080954A1 (en) * 2009-04-17 2012-04-05 St-Ericsson Sa Enhanced power in hdmi systems

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