EP0624272B1 - Electrical functional unit and cathode ray tube display switchable into energy saving states - Google Patents

Electrical functional unit and cathode ray tube display switchable into energy saving states Download PDF

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Publication number
EP0624272B1
EP0624272B1 EP93902045A EP93902045A EP0624272B1 EP 0624272 B1 EP0624272 B1 EP 0624272B1 EP 93902045 A EP93902045 A EP 93902045A EP 93902045 A EP93902045 A EP 93902045A EP 0624272 B1 EP0624272 B1 EP 0624272B1
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EP
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Prior art keywords
ray tube
cathode
visual display
display unit
saving state
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EP93902045A
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German (de)
French (fr)
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EP0624272A1 (en
Inventor
Edmund PÖTSCH
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Wincor Nixdorf International GmbH
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Wincor Nixdorf International GmbH
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Priority claimed from DE9201166U external-priority patent/DE9201166U1/de
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    • 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
    • G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/06—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
    • G09G1/14—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible
    • G09G1/16—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible the pattern of rectangular co-ordinates extending over the whole area of the screen, i.e. television type raster
    • G09G1/165—Details of a display terminal using a CRT, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G1/167—Details of the interface to the display terminal specific for a CRT
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • 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

Definitions

  • the invention relates to an electrical functional unit and a tube monitor according to the features of the preamble of claim 1.
  • Tube display devices convert energy into heat unused.
  • tube screen devices with a color screen have a power loss of approximately 100 watts.
  • an electrical functional unit e.g. a personal computer
  • the tube screen devices then referred to here as monitors mostly run in continuous operation, although the mere usage time only makes up a fraction of the operating time.
  • a screen display system with a computer unit in the form of a personal computer and a tube screen device is known.
  • the screen display system has an additional serial interface for coded signals between the computer unit and the tube screen device compared to an interface for supplying the tube screen device for its basic function with corresponding signals.
  • the system is constructed in such a way that a read-only memory for device-specific parameters such as resolution and geometry of the screen or control times is provided in the tube monitor. When the system is switched on, these parameters are read out by the computer unit and the computer unit adjusts itself to the connected type of tube monitor.
  • the problem of a control in a predefinable energy-saving state of the tube screen device by the computer unit via the interface for supplying the tube screen device with signals corresponding to its basic function is not addressed.
  • a computer system in which a signal is generated when no more data are entered into the computer system. This means that no work is being done on the computer system.
  • the signal is forwarded to a time monitoring device and starts it. After a predetermined period of time, the time monitoring device generates a further signal, by means of which the horizontal and vertical synchronization signal is blocked for a CRT display device. All other electrical functions remain unchanged. By blocking the synchronization signals, the tube display device is darkened. As soon as data is entered into the computer system again, the synchronization signals are released and a screen display appears again.
  • the specified measures are intended to prevent the inner tube surface from being burned in due to the presence of a static image during the phases in which the computer system is not being worked on.
  • the problem of controlling the CRT display device in a predefinable energy-saving state by sending a corresponding message in coded form to the tube screen device via the interface for supplying the tube screen device with signals corresponding to its basic function is not addressed.
  • a device arrangement can be found in Patents Abstracts of Japan, JP-A-1 269 979 with a tube screen device with a waiting function and a control device which supplies the tube screen device for its basic mode of operation via line connections of a standard interface with corresponding signals.
  • the device arrangement comprises in a keyboard signal line a signal evaluation circuit which, if the signals on the keyboard signal line do not change for a predetermined period of time, switches off the power supply of the tube monitor device via a power supply interrupter switch.
  • the tube screen device also assumes a similar state to an energy-saving state.
  • the modules of the CRT device are worn out prematurely due to increased on / off cycles due to the total shutdown of the power supply, which shortens the life of the device. So this is not a component-saving energy saving control. If the tube heating is maintained, there is a risk of "cathode poisoning".
  • the object of the invention is to provide an electrical functional unit and a tube screen device of the type mentioned at the beginning, in which there is the possibility of the control unit sending a message to the tube screen device by reducing the power or switching off a first and at a later time at least a second predetermined, to control as many components-conserving energy-saving state of the tube screen device without restricting the use of the individual devices to an arrangement in which both the control device can control the energy-saving state of the tube screen device and the tube screen device is controllable with respect to an energy-saving state.
  • the CRT device By controlling the CRT device into an energy-saving state by means of a coded message from the electrical functional unit to the CRT device, it is possible, after a first period of time, to switch off only those parts of the CRT device whose switch-off does not prevent rapid restart. This enables energy-saving operation that is gentle on components. After a second period of time, the tube screen device can then be switched off completely, with the result that one hundred percent energy saving is achieved.
  • the individual devices Since a transmission of a message independent of the function of the standard interface is possible for controlling an energy-saving state of the tube screen device, the individual devices are not in each case dependent on a correspondingly opposite device. The basic functions of the individual devices are guaranteed regardless of their mutual training with regard to the possibility of controlling or accomplishing an energy-saving state. If the devices are not designed in opposite directions, either the tube screen device cannot receive or utilize the message for controlling the energy-saving state, or the control device cannot send such a message. The advantage of the energy-saving state cannot be used in these cases, but the individual devices as such remain universally applicable.
  • control device has a device for switching off the function of transmitting a message which controls the energy-saving state of the tube screen device, because tube-screen devices without an energy-saving state or without a corresponding configuration for controlling the energy-saving state are then operated safely and without interference can.
  • the figure shows a control unit PC and a monitor M, which are connected to one another via a standard interface SS.
  • the monitor M is supplied via the standard interface SS with signals corresponding to its basic function.
  • the standard interface SS shown consists of three line connections, two of which are responsible for the transmission of synchronization signals Hsync, Vsync in the X and Y directions of the screen of the monitor M and the third for the transmission of a video signal VS.
  • any other standard interfaces are conceivable.
  • the standard interface would have, for example, three line connections for each video signal of a predetermined color.
  • the number of video signal lines would correspond, for example, to the number of possible color / brightness levels of the image to be generated.
  • a message is transmitted in coded form on the line connections of the standard interface SS. Apart from the line connections of the standard interface SS, no further line connections are required.
  • the control device PC has a video encoder VC, which encodes the message and integrates it into the video signal. For example, during the horizontal and / or vertical return phase of the screen beam a video signal ⁇ O transmitted. In this case, the user should be able to optionally select the message generation function, otherwise return lines may be visible when using third-party monitors. This effect can be reduced by a special choice of level and color.
  • the monitor M has a so-called "power stand-by" decoder PSB-DC, which filters out a message PSB which is decisive for controlling the energy-saving state from the transmitted signals.
  • the PSB decoder PSB-DC can also be caused to activate a "power stand-by" state by completely or partially switching off the sync signals.
  • the control unit PC has a device for switching off the function controlling the PSB decoder, which e.g. can be operated optionally by a user of the control device PC. This could be done, for example, using so-called setup menu switches.

Abstract

In order to control an energy-saving state of a cathode screen (M) by a control device (PC) connected thereto via a standard interface (SS) for its operation without the individual devices' being restricted to use in an arrangement with instruments tuned to one another relatively to the control of the energy-saving state, there are means for transmission, independent of the function of the standard interface (SS), of information (SB) controlling the energy-saving state of the cathode screen (M) in coded form between the control device and the cathode screen (PC and M).

Description

Die Erfindung betrifft eine elektrische Funktionseinheit und ein Röhrenbildschirmgerät gemäß den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to an electrical functional unit and a tube monitor according to the features of the preamble of claim 1.

Röhrenbildschirmgeräte setzen Energie ungenutzt in Wärme um. Insbesondere Röhrenbildschirmgeräte mit Farbbildschirm weisen beispielsweise eine Verlustleistung von ca. 100 Watt auf. In Verbindung mit einer elektrischen Funktionseinheit als Steuergerät, wie z.B. ein Personalcomputer, laufen die hier dann als Monitor bezeichneten Röhrenbildschirmgeräte meist im Dauerbetrieb, obwohl die reine Benutzungszeit nur einen Bruchteil der Betriebszeit ausmacht.Tube display devices convert energy into heat unused. In particular, tube screen devices with a color screen have a power loss of approximately 100 watts. In connection with an electrical functional unit as a control device, e.g. a personal computer, the tube screen devices then referred to here as monitors mostly run in continuous operation, although the mere usage time only makes up a fraction of the operating time.

Es sind zwar schon Datensichtstationen der Firma Nixdorf, z.B. BA 80, bekannt, die bei längeren Ruhephasen den Monitor in einen Energiesparzustand schalten. Der Monitor ist hier aber fest mit dem Steuergerät verbunden, so daß wegen der genauen gegenseitigen Abstimmung der Geräte problemlos beispielsweise die Synchronisiersignale des Monitors abgeschaltet werden können.There are data display stations from Nixdorf, e.g. BA 80, known to switch the monitor into an energy-saving state during longer periods of rest. However, the monitor is firmly connected to the control unit here, so that, for example, the synchronization signals of the monitor can easily be switched off because of the precise mutual coordination of the devices.

Im Fall einer sogenannten "offenen Anordnung", bei einer Anordnung mit einem Steuergerät und einem Röhrenbildschirmgerät als Einzelgeräte also, kann eine solche Steuerung nicht durchgeführt werden, weil sonst nicht zur Anordnung gehörende Monitore ein nicht synchronisiertes Flimmerbild erzeugen würden. Monitore sollten aber an jedem dafür vorgesehenen System ohne Beeinträchtigung seiner grundlegenden Funktion arbeiten können. Ebenso sollte das Steuergerät jeden Monitor in seiner grundlegenden Funktion betreiben können.In the case of a so-called "open arrangement", ie an arrangement with a control device and a tube screen device as individual devices, such a control cannot be carried out because otherwise monitors that do not belong to the arrangement would produce an unsynchronized flickering picture. However, monitors should be able to work on any system intended for this purpose without impairing their basic function. The control unit should also be able to operate each monitor in its basic function.

Aus dem Dokument EP-A-O 456 923 ist ein Bildschirmanzeigesystem mit einer Rechnereinheit in Form eines Personalcomputers und einem Röhrenbildschirmgerät bekannt. Das Bildschirmanzeigesystem weist eine gegenüber einer Schnittstelle zum Versorgen des Röhrenbildschirmgerätes für dessen grundlegende Funktion mit entsprechenden Signalen zusätzliche serielle Schnittstelle für kodierte Signale zwischen der Rechnereinheit und dem Röhrenbildschirmgerät auf. Das System ist in der Weise aufgebaut, daß im Röhrenbildschirmgerät ein Festwertspeicher für gerätespezifische Parameter wie zum Beispiel Auflösevermögen und Geometrie des Bildschirms oder Ansteuerzeiten vorgesehen ist. Beim Einschalten des Systems werden diese Parameter von der Rechnereinheit ausgelesen und die Rechnereinheit stellt sich auf den angeschlossenen Typ des Röhrenbildschirmgerätes ein. Das Problem einer Steuerung in einen vorgebbaren Energiesparzustand des Röhrenbildschirmgerätes durch die Rechnereinheit über die Schnittstelle zum Versorgen des Röhrenbildschirmgerätes mit für dessen grundlegende Funktion entsprechenden Signalen ist nicht angesprochen.From document EP-AO 456 923 a screen display system with a computer unit in the form of a personal computer and a tube screen device is known. The screen display system has an additional serial interface for coded signals between the computer unit and the tube screen device compared to an interface for supplying the tube screen device for its basic function with corresponding signals. The system is constructed in such a way that a read-only memory for device-specific parameters such as resolution and geometry of the screen or control times is provided in the tube monitor. When the system is switched on, these parameters are read out by the computer unit and the computer unit adjusts itself to the connected type of tube monitor. The problem of a control in a predefinable energy-saving state of the tube screen device by the computer unit via the interface for supplying the tube screen device with signals corresponding to its basic function is not addressed.

Aus dem Dokument US-A-5 059 961 ist ein Computersystem bekannt, in dem ein Signal erzeugt wird, wenn keine Daten mehr in das Computersystem eingegeben werden. Dieser Sachverhalt bedeutet, daß an dem Computersystem nicht gearbeitet wird. Das Signal wird an eine Zeitüberwachungseinrichtung weitergeleitet und startet diese. Nach einer vorgegebenen Zeitspanne erzeugt die Zeitüberwachungseinrichtung ein weiteres Signal, durch das das horizontale und vertikale Synchronisiersignal für ein Röhrenbildschirmgerät gesperrt wird. Alle anderen elektrischen Funktionen bleiben unverändert. Durch das Sperren der Synchronisiersignale wird das Röhrenbildschirmgerät dunkel gesteuert. Sobald wieder Daten in das Computersystem eingegeben werden, werden die Synchronisiersignale freigegeben und es kommt wieder zu einer Bildschirmanzeige. Mit den angegebenen Maßnahmen soll ein Einbrennen der Bildröhreninnenfläche aufgrund des Anliegens eines statischen Bildes während der Phasen, in denen am Computersystem nicht gearbeitet wird, vermieden werden. Das Problem einer Steuerung des Röhrenbildschirmgerätes in einen vorgebbaren Energiesparzustand durch Aussenden einer entsprechenden Nachricht in kodierter Form an das Röhrenbildschirmgerät über die Schnittstelle zum Versorgen des Röhrenbildschirmgerätes mit für dessen grundlegende Funktion entsprechenden Signalen ist nicht angesprochen.From document US-A-5 059 961 a computer system is known in which a signal is generated when no more data are entered into the computer system. This means that no work is being done on the computer system. The signal is forwarded to a time monitoring device and starts it. After a predetermined period of time, the time monitoring device generates a further signal, by means of which the horizontal and vertical synchronization signal is blocked for a CRT display device. All other electrical functions remain unchanged. By blocking the synchronization signals, the tube display device is darkened. As soon as data is entered into the computer system again, the synchronization signals are released and a screen display appears again. The specified measures are intended to prevent the inner tube surface from being burned in due to the presence of a static image during the phases in which the computer system is not being worked on. The problem of controlling the CRT display device in a predefinable energy-saving state by sending a corresponding message in coded form to the tube screen device via the interface for supplying the tube screen device with signals corresponding to its basic function is not addressed.

Aus Patents Abstracts of Japan, JP-A-1 269 979 ist eine Geräteanordnung entnehmbar mit einem Röhrenbildschirmgerät mit einer Wartestellungsfunktion und einem das Röhrenbildschirmgerät für dessen grundlegende Arbeitsweise über Leitungsverbindungen einer Standardschnittstelle mit entsprechenden Signalen versorgenden Steuergerät. Die Geräteanordnung umfaßt in einer Tastatursignalleitung eine Signalauswerteschaltung, die, wenn sich die Signale auf der Tastatursignalleitung eine vorgegebene Zeitspanne nicht ändern, über einen Stromversorgungsunterbrecherschalter die Stromversorgung des Röhrenbildschirmgerätes abschaltet. Damit nimmt zwar das Röhrenbildschirmgerät auch einen ähnlichen Zustand wie einen Energiesparzustand ein. Die Bausteine des Röhrenbildschirmgerätes werden aber infolge erhöhter Ein-/Ausschaltzyklen durch die jeweilige Totalabschaltung der Stromversorgung vorzeitig verschlissen, wodurch die Lebensdauer des Gerätes verkürzt wird. Es handelt sich also hier nicht um eine Bauteile schonende Energiesparsteuerung. Bei zusätzlicher Aufrechterhaltung der Röhrenheizung besteht die Gefahr einer "Kathodenvergiftung".A device arrangement can be found in Patents Abstracts of Japan, JP-A-1 269 979 with a tube screen device with a waiting function and a control device which supplies the tube screen device for its basic mode of operation via line connections of a standard interface with corresponding signals. The device arrangement comprises in a keyboard signal line a signal evaluation circuit which, if the signals on the keyboard signal line do not change for a predetermined period of time, switches off the power supply of the tube monitor device via a power supply interrupter switch. Thus, the tube screen device also assumes a similar state to an energy-saving state. However, the modules of the CRT device are worn out prematurely due to increased on / off cycles due to the total shutdown of the power supply, which shortens the life of the device. So this is not a component-saving energy saving control. If the tube heating is maintained, there is a risk of "cathode poisoning".

Aus dem deutschen Gebrauchsmuster DE-U- 90 12 582 und dem Dokument GB-A-2 007 471 ist bekannt, zur Steuerung einer Wartestellungsfunktion des Röhrenbildschirmgerätes die Leitungsverbindungen, insbesondere die Videosignalleitung, einer Standardschnittstelle zum Betreiben des Röhrenbildschirmgerätes zu benutzen. Dabei ist aber lediglich eine Dunkelsteuerung der Bildröhre möglich, wodurch zwar ein Einbrennen verhindert wird, jedoch wegen des ansonsten vollen Betriebszustandes des Röhrenbildschirmgerätes keine Schonung der Bauteile durch Leistungsreduzierung möglichst vieler Bauteile oder Abschaltung gegeben ist. Das Problem einer Steuerung des Röhrenbildschirmgerätes in einen vorgegebenen Energiesparzustand durch Aussenden einer kodierten Nachricht an das Röhrenbildschirmgerät über die Schnittstelle zum Versorgen des Röhrenbildschirmgerätes mit für dessen grundlegende Funktion entsprechenden Signalen ist nicht angesprochen.From the German utility model DE-U-90 12 582 and the document GB-A-2 007 471 it is known to use the line connections, in particular the video signal line, to control a maintenance function of the tube screen device, a standard interface for operating the tube screen device. However, only a dark control of the picture tube is possible, which prevents burn-in, but because of the otherwise full operating state of the CRT device there is no protection of the components by reducing the power of as many components as possible or switching off. The problem of controlling the CRT device into a predetermined energy-saving state by sending a coded message to the CRT device via the interface for supplying the CRT device with signals corresponding to its basic function is not addressed.

Aus dem Dokument DE-C-3 837 620 ist bekannt, zum Dunkelsteuern eines Röhrenbildschirmgerätes einen Näherungsschalter vorzusehen, der eine Steuerung einer Wartestellungsfunktion unabhängig von der eigentlichen Steuerung des Röhrenbildschirmgerätes ermöglicht. Wegen des ansonsten vollen Betriebszustandes des Röhrenbildschirmgerätes erfolgt aber auch hier keine Schonung der Bauteile durch Leistungsreduzierung oder Abschaltung.From document DE-C-3 837 620 it is known to provide a proximity switch for darkening a tube screen device which enables a waiting function to be controlled independently of the actual control of the tube screen device. Because of the otherwise full operating state of the CRT device, the components are not spared by reducing the power or switching off.

Aufgabe der Erfindung ist es, eine elektrische Funktionseinheit und ein Röhrenbildschirmgerät der eingangs genannten Art anzugeben, bei denen die Möglichkeit besteht, seitens des Steuergerätes durch Aussenden einer Nachricht an das Röhrenbildschirmgerät durch Leistungsreduzierung oder Abschaltung einen ersten und zu einem späteren Zeitpunkt wenigstens einen zweiten vorgegebenen, möglichst viele Bauteile schonenden Energiesparzustand des Röhrenbildschirmgerätes zu steuern, ohne daß damit die Verwendung der Einzelgeräte auf eine Anordnung beschränkt ist, bei der sowohl das Steuergerät den Energiesparzustand des Röhrenbildschirmgerätes steuern kann, als auch das Röhrenbildschirmgerät bezüglich eines Energiesparzustandes steuerbar ist.The object of the invention is to provide an electrical functional unit and a tube screen device of the type mentioned at the beginning, in which there is the possibility of the control unit sending a message to the tube screen device by reducing the power or switching off a first and at a later time at least a second predetermined, to control as many components-conserving energy-saving state of the tube screen device without restricting the use of the individual devices to an arrangement in which both the control device can control the energy-saving state of the tube screen device and the tube screen device is controllable with respect to an energy-saving state.

Diese Aufgabe wird in einer Einrichtung der eingangs genannten Art erfindungsgemäß durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst.This object is achieved according to the invention in a device of the type mentioned at the outset by the features specified in the characterizing part of claim 1.

Durch die Steuerung des Röhrenbildschirmgerätes in einen Energiesparzustand mittels einer kodierten Nachricht seitens der elektrischen Funktionseinheit an das Röhrenbildschirmgerät besteht die Möglichkeit, nach einer ersten Zeitspanne nur diejenigen Teile des Röhrenbildschirmgerätes abzuschalten, deren Abschaltung einem schnellen Wiederstart nicht entgegensteht. Damit ist ein Bauteile schonender Energiesparbetrieb möglich. Nach einer zweiten Zeitspanne kann das Röhrenbildschirmgerät dann komplett abgeschaltet werden, womit eine einhundertprozentige Energieeinsparung erzielt wird.By controlling the CRT device into an energy-saving state by means of a coded message from the electrical functional unit to the CRT device, it is possible, after a first period of time, to switch off only those parts of the CRT device whose switch-off does not prevent rapid restart. This enables energy-saving operation that is gentle on components. After a second period of time, the tube screen device can then be switched off completely, with the result that one hundred percent energy saving is achieved.

Da eine von der Funktion der Standardschnittstelle unabhängige Übertragung einer Nachricht für die Steuerung eines Energiesparzustandes des Röhrenbildschirmgerätes möglich ist, sind die Einzelgeräte nicht jeweils auf ein entsprechend gegensinnig ausgebildetes anderes Gerät angewiesen. Die grundlegenden Funktionen der Einzelgeräte werden unabhängig von ihrer gegenseitigen Ausbildung bezüglich der Möglichkeit der Steuerung bzw. Bewerkstelligung eines Energiesparzustandes gewährleistet. Sind die Geräte nicht entsprechend gegensinnig ausgebildet, kann lediglich entweder das Röhrenbildschirmgerät die Nachricht zur Steuerung des Energiesparzustandes nicht empfangen oder verwerten oder kann das Steuergerät schon keine solche Nachricht aussenden. Der Vorteil des Energiesparzustandes kann in diesen Fällen zwar nicht genutzt werden, die Einzelgeräte als solche bleiben aber universell einsetzbar.Since a transmission of a message independent of the function of the standard interface is possible for controlling an energy-saving state of the tube screen device, the individual devices are not in each case dependent on a correspondingly opposite device. The basic functions of the individual devices are guaranteed regardless of their mutual training with regard to the possibility of controlling or accomplishing an energy-saving state. If the devices are not designed in opposite directions, either the tube screen device cannot receive or utilize the message for controlling the energy-saving state, or the control device cannot send such a message. The advantage of the energy-saving state cannot be used in these cases, but the individual devices as such remain universally applicable.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand von abhängigen Ansprüchen. Insbesondere ist es vorteilhaft, wenn das Steuergerät eine Einrichtung zum Abschalten der Funktion der Übertragung einer den Energiesparzustand des Röhrenbildschirmgerätes steuernden Nachricht aufweist, weil dann Röhrenbildschirmgeräte ohne Energiesparzustand bzw. ohne entsprechende Ausgestaltung für die Steuerung des Energiesparzustandes sicher störungsfrei betrieben werden können.Advantageous embodiments of the invention are the subject of dependent claims. In particular, it is advantageous if the control device has a device for switching off the function of transmitting a message which controls the energy-saving state of the tube screen device, because tube-screen devices without an energy-saving state or without a corresponding configuration for controlling the energy-saving state are then operated safely and without interference can.

Nachfolgend wird anhand einer Zeichnung ein Ausführungsbeispiel der Erfindung näher erläutert.An exemplary embodiment of the invention is explained in more detail below with reference to a drawing.

Die Figur zeigt ein Steuergerät PC und einen Monitor M, die über eine Standardschnittstelle SS miteinander verbunden sind.The figure shows a control unit PC and a monitor M, which are connected to one another via a standard interface SS.

Der Monitor M wird über die Standardschnittstelle SS mit für dessen grundlegende Funktion entsprechenden Signalen versorgt. Die gezeigte Standardschnittstelle SS besteht aus drei Leitungsverbindungen, von denen zwei für die Übertragung von Synchronisiersignalen Hsync, Vsync in X- bzw. Y-Richtung des Bildschirms des Monitors M und die dritte für die Übertragung eines Videosignals VS zuständig sind. Es sind aber beliebig andere Standardschnittstellen denkbar. Zum Beispiel solche für den Betrieb von Monitoren mit Farbbildschirm und Analog-Eingang. In diesem Fall würde die Standardschnittstelle beispielsweise drei Leitungsverbindungen für je ein Videosignal einer vorgegebenen Farbe aufweisen. Bei solchen mit Digital-Eingang entspräche die Anzahl der Videosignalleitungen beispielsweise der Anzahl möglicher Farb/Helligkeitsstufen des zu erzeugenden Bildes.The monitor M is supplied via the standard interface SS with signals corresponding to its basic function. The standard interface SS shown consists of three line connections, two of which are responsible for the transmission of synchronization signals Hsync, Vsync in the X and Y directions of the screen of the monitor M and the third for the transmission of a video signal VS. However, any other standard interfaces are conceivable. For example, those for the operation of monitors with a color screen and analog input. In this case, the standard interface would have, for example, three line connections for each video signal of a predetermined color. In those with digital input, the number of video signal lines would correspond, for example, to the number of possible color / brightness levels of the image to be generated.

Zur Steuerung des Energiesparzustandes des Monitors M wird eine Nachricht in kodierter Form auf den Leitungsverbindungen der Standardschnittstelle SS übertragen. Außer den Leitungsverbindungen der Standardschnittstelle SS werden keine weiteren Leitungsverbindungen benötigt.To control the energy-saving state of the monitor M, a message is transmitted in coded form on the line connections of the standard interface SS. Apart from the line connections of the standard interface SS, no further line connections are required.

Das Steuergerät PC weist einen Videocoder VC auf, der die Nachricht kodiert und in das Videosignal integriert. Beispielsweise wird während der horizontalen und/oder vertikalen Rücklaufphase des Bildschirmstrahls ein Videosignal ≧ O übertragen. In diesem Fall sollte die Nachrichtenerzeugungsfunktion vom Benutzer optional wählbar sein, da sonst bei Verwendung von Fremd-Monitoren unter Umständen Rücklauflinien sichtbar werden. Durch besondere Wahl des Pegels und der Farbe kann dieser Effekt aber reduziert werden.The control device PC has a video encoder VC, which encodes the message and integrates it into the video signal. For example, during the horizontal and / or vertical return phase of the screen beam a video signal ≧ O transmitted. In this case, the user should be able to optionally select the message generation function, otherwise return lines may be visible when using third-party monitors. This effect can be reduced by a special choice of level and color.

Der Monitor M weist einen sogenannten "Power-Stand-By"-Dekoder PSB-DC auf, der aus den übertragenen Signalen eine für die Steuerung des Energiesparzustandes maßgebende Nachricht PSB herausfiltert.The monitor M has a so-called "power stand-by" decoder PSB-DC, which filters out a message PSB which is decisive for controlling the energy-saving state from the transmitted signals.

Der PSB-Decoder PSB-DC kann auch durch vollständiges oder teilweises Abschalten der Sync-Signale dazu veranlaßt werden, einen "Power-Stand-By"-Zustand zu aktivieren. Vorteilhaft ist zumindest in diesem Fall, daß die Steuereinheit PC eine Einrichtung zum Abschalten der den PSB-Dekoder steuernden Funktion aufweist, die z.B. von einem Benutzer des Steuergerätes PC wahlfrei bedient werden kann. Dies könnte beispielsweise durch sogenannte Setup-Menü-Schalter erfolgen.The PSB decoder PSB-DC can also be caused to activate a "power stand-by" state by completely or partially switching off the sync signals. At least in this case it is advantageous that the control unit PC has a device for switching off the function controlling the PSB decoder, which e.g. can be operated optionally by a user of the control device PC. This could be done, for example, using so-called setup menu switches.

Claims (3)

  1. Electric functional unit (PC) and cathode-ray tube visual display unit (M) having respective connection points for connection lines of a standard interface (SS) for supplying the cathode-ray tube visual display unit with signals appropriate for its basic function coming from the electric functional unit, and having matched means (VC, PSB-DC) for the transmission of a message on the part of the electric functional unit to the cathode-ray tube visual display unit for controlling the cathode-ray tube visual display unit into an energy-saving state, characterized in that the said means are assigned to the standard interface and comprise device elements for generation, transmission and evaluation of the message, in that the device elements are arranged for generation of the message in the electric functional unit and for evaluation of the message in the cathode-ray tube visual display unit, and in that the device elements are operated in such a mannner that for setting the cathode-ray tube visual display unit into a predetermined energy-saving state a coded message is generated and evaluated, resulting in the cathode-ray tube visual display unit initially adopting a first predetermined energy-saving state and at a later time adopting at least a second predetermined energy-saving state.
  2. Electric functional unit and cathode-ray tube visual display unit according to Claim 1, characterized in that the electric functional unit (PC) has a device for switching off the function of the transmission of the message (PSB) controlling the energy-saving state of the cathode-ray tube visual display unit (M).
  3. Electric functional unit and cathode-ray tube visual display unit according to Claim 2, characterized in that the device for switching off the function of the transmission of the message (PSB) controlling the energy-saving state of the cathode-ray tube visual display unit (M) can be operated freely selectively by a user.
EP93902045A 1992-01-31 1993-01-25 Electrical functional unit and cathode ray tube display switchable into energy saving states Expired - Lifetime EP0624272B1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE4202793 1992-01-31
DE4202794 1992-01-31
DE4202794 1992-01-31
DE9201166U 1992-01-31
DE4202793 1992-01-31
DE9201166U DE9201166U1 (en) 1992-01-31 1992-01-31
PCT/DE1993/000056 WO1993015495A1 (en) 1992-01-31 1993-01-25 Electric functional unit and cathode screen

Publications (2)

Publication Number Publication Date
EP0624272A1 EP0624272A1 (en) 1994-11-17
EP0624272B1 true EP0624272B1 (en) 1995-10-25

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EP93902045A Expired - Lifetime EP0624272B1 (en) 1992-01-31 1993-01-25 Electrical functional unit and cathode ray tube display switchable into energy saving states

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EP (1) EP0624272B1 (en)
AT (1) ATE129588T1 (en)
DE (1) DE59300827C9 (en)
ES (1) ES2078818T3 (en)
WO (1) WO1993015495A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6750589B2 (en) 2002-01-24 2004-06-15 Honeywell International Inc. Method and circuit for the control of large arrays of electrostatic actuators

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5821924A (en) * 1992-09-04 1998-10-13 Elonex I.P. Holdings, Ltd. Computer peripherals low-power-consumption standby system
US5389952A (en) * 1992-12-02 1995-02-14 Cordata Inc. Low-power-consumption monitor standby system
JP3068855B2 (en) * 1994-01-14 2000-07-24 エロネックス・アイピー・ホールディングス・リミテッド Remote control of display function
EP1031128B1 (en) 1997-11-20 2002-03-06 Wincor Nixdorf GmbH & Co KG Delay device for a visual display unit and method to deactivate such display unit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5059961A (en) * 1989-08-21 1991-10-22 Cheng Te J Screen blanker for a monitor of a computer system
EP0618561B1 (en) * 1990-05-14 1996-03-06 International Business Machines Corporation Display system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6750589B2 (en) 2002-01-24 2004-06-15 Honeywell International Inc. Method and circuit for the control of large arrays of electrostatic actuators

Also Published As

Publication number Publication date
ATE129588T1 (en) 1995-11-15
ES2078818T3 (en) 1995-12-16
DE59300827C9 (en) 2007-08-02
DE59300827C5 (en) 2007-04-12
DE59300827D1 (en) 1995-11-30
EP0624272A1 (en) 1994-11-17
WO1993015495A1 (en) 1993-08-05

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