JP2010079007A - Data output device, data display system, data display method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent careless output of data that should not be disclosed, and to reliably make a secret of the existence of that kind of data. <P>SOLUTION: A data output device or the like includes an HDD 22 for storing a plurality of image data and alternative image data, a radio LANI/F 20 and a radio LAN antenna 23 for output of the image data to an outside, a keyboard/mouse 18 for selecting the image data stored into the HDD 22, and a CPU 11 for determining whether the selected image data is one set to prohibit the output to the outside, and for output of the alternative image data in stead of the image data, when the image data set to prohibit the output to the outside is determined to be selected. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a data output device, a data display system, a data display method, and a program suitable for projecting an image by connecting a personal computer to a data projector device, for example.

Conventionally, by selecting the projector device that transmits the display information to the display device (projector device) according to the content of the information, necessary information is urgently and sufficiently transmitted to the conference participants, and unnecessary information is transmitted. For the purpose of minimizing information, a technique has been considered in which display selection means such as selecting information from a personal computer, priority order, and interruption is provided. (For example, Patent Document 1)
JP 2004-012695 A

  When controlling the handling of the image on the display device side that inputs and displays or projects the image including the technology of the above-mentioned patent document, the image data transmitting side selects the image data that should not be output by mistake. Transmitted, it is displayed on the display device as it is.

  For example, it seems that there are many cases in which a personal computer is connected to the projector device, and a document image for presentation and other document images are sequentially developed on the personal computer and image data is transmitted. In such a case, If the image data with confidentiality stored in the personal computer or the instruction operation to unfold the private image data is mistakenly operated, the image data with confidentiality or the private image data is naturally left as it is in the projector. It is displayed (projected) on the device side.

  The present invention has been made in view of the above circumstances, and the purpose of the present invention is to ensure the existence of such data without inadvertently outputting data that should not be publicized. An object of the present invention is to provide a data output device, a data display system, a data display method, and a program that can be concealed.

  The invention described in claim 1 is a data storage means for storing a plurality of data, an alternative storage means for storing alternative data, an output means for outputting data to the outside of the apparatus, and arbitrary data stored in the data storage means Prohibition setting means for prohibiting external output, selection means for selecting data to be stored in the data storage means, and whether the data selected by the selection means is set to prohibit external output by the prohibition setting means If it is determined that the data for which prohibition of external output has been set by the determination means is selected by the selection means, the alternative data stored in the alternative storage means in place of the data is output. Output control means for outputting to the outside of the apparatus by means.

  According to the second aspect of the present invention, in the first aspect of the invention, when it is determined that the data for which prohibition of external output is set by the determination means is selected by the selection means, the external output is performed on the selected data. Warning means for urging confirmation that the prohibition of the output is set, and the output control means is configured to output the output means when the warning means confirms that the prohibition of the external output is set. The output of the substitute data by the device to the outside of the apparatus is stopped.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the prohibition setting unit includes a plurality of pieces of data stored in the data storage unit and includes all data stored in a predetermined folder. On the other hand, external output is prohibited.

  The invention described in claim 4 is the invention described in claim 3, wherein the prohibition setting unit prohibits output of file information of a file stored in the folder to the outside.

  The invention according to claim 5 is a data display system comprising a data output device for outputting data and a data display device for displaying data output by the data output device, wherein the data output device comprises a plurality of data Data storage means for storing data, output means for outputting data to the data display device, prohibition setting means for prohibiting output of arbitrary data stored in the data storage means, and data stored in the data storage means Selection means for selecting, determination means for determining whether the data selected by the selection means is set to prohibit output by the prohibition setting means, and data for which output prohibition is set by the determination means If it is determined that the selection means has selected, instruction information for instructing display of a substitute image instead of the data is sent to the image display device by the output means. The data display device includes an input means for inputting data output from the output means, a display means for displaying data input by the input means, and an alternative storage for storing alternative data Means for determining whether or not the instruction information has been input instead of data by the input means, and an alternative to be stored in the alternative storage means if it is determined that the instruction information has been input by the determination means Display control means for displaying data by the display means.

  According to a sixth aspect of the present invention, in the fifth aspect of the invention, the image output device is selected when it is determined that the data for which prohibition of external output is set by the determination means is selected by the selection means. A warning means for prompting confirmation that the prohibition of external output is set for the data is further provided, and the output control means can confirm that the prohibition of external output is set by the warning means. In this case, the output of the substitute data to the outside of the apparatus by the output means is stopped.

  The invention according to claim 7 is a data output method in a device including a data storage unit that stores a plurality of data, an output unit that outputs data to the outside of the device, and an alternative storage unit that stores alternative data, A prohibition setting step for setting prohibition of external output of arbitrary data stored in the data storage unit; a selection step for selecting data stored in the data storage unit; and the data selected in the selection step is the prohibition setting step If it is determined that the data for which the prohibition of external output has been set in the determination step is selected in the selection step, the determination step for determining whether or not the external output prohibition is set in place of the data And an output control step of outputting the substitute data stored in the substitute storage unit to the outside of the apparatus by the output unit.

  The invention according to claim 8 is a data storage unit that stores a plurality of data, a data output device including an output unit that outputs data, an input unit that inputs data, an alternative storage unit that stores alternative data, and A data display method in a system having a data display device including a display unit for displaying data input by the input unit, and a prohibition setting step for prohibiting output of arbitrary data stored in the data storage unit, A selection step for selecting data to be stored in the data storage unit; a determination step for determining whether the data selected in the selection step is set to prohibit output in the prohibition setting step; and the determination step When it is determined that the data for which output prohibition has been set in the selection step is selected, instruction information for instructing display of alternative data is output by the output unit instead of the data. An output control step, a determination step for determining whether or not the instruction information is input instead of data at the input unit, and a determination that the instruction information is input at the determination step. And a display control step for displaying the substitute data to be stored on the display unit.

  The invention according to claim 9 is a program executed by a computer built in a device including a data storage unit that stores a plurality of data, an output unit that outputs data to the outside of the device, and an alternative storage unit that stores alternative data. A prohibition setting step for setting prohibition of external output of arbitrary data stored in the data storage unit; a selection step for selecting data stored in the data storage unit; and the data selected in the selection step If it is determined that the external output prohibition is set in the prohibition setting step and whether the data for which the external output prohibition is set in the determination step is selected in the selection step, the data Instead of the output control step of outputting the substitute data stored in the substitute storage unit to the outside of the apparatus by the output unit. Characterized in that to execute the data.

  The invention described in claim 10 is a data storage unit that stores a plurality of data, a data output device that includes an output unit that outputs data, an input unit that inputs data, an alternative storage unit that stores alternative data, and A program executed by a computer incorporated in both devices in an image display device having a display unit for displaying data input by the input unit, and outputting arbitrary data stored in the data storage unit A prohibition setting step for prohibition, a selection step for selecting data to be stored in the data storage unit, and whether the data selected in the selection step is set to prohibit output in the prohibition setting step. If it is determined in the determination step that the data for which output prohibition has been set in the determination step is selected in the selection step, the data is An output control step for causing the output unit to output instruction information for instructing display of alternative data, a determination step for determining whether or not the instruction information is input instead of data at the input unit, and the determination step. When it is determined that the instruction information is input, the computer is caused to execute a display control step of displaying the substitute data stored in the substitute storage unit on the display unit.

  According to the present invention, it is possible to securely conceal the existence of such data without inadvertently outputting data that should not be disclosed.

(First embodiment)
A first embodiment in which the present invention is applied to an image projection system using a personal computer and a data projector apparatus will be described below with reference to the drawings.

  FIG. 1 shows the appearance and connection configuration of the entire system. The personal computer 1 and the data projector device 2 are wirelessly connected according to wireless LAN technology, for example, the IEEE802.11g standard, and image data corresponding to various application programs reproduced by the personal computer 1 is appropriately sent to the data projector device 2. The data projector 2 projects the image onto the screen SC.

  Here, it is assumed that both the personal computer 1 and the data projector apparatus 2 have a wireless LAN function in advance, and when the personal computer 1 executes various application programs such as a presentation program, the personal computer 1 stores the image data in the data projector apparatus 2. It is possible to transmit directly to.

  The data projector device 2 forms a light image corresponding to the image data using, for example, a micromirror element based on the image data sent from the personal computer 1, and includes a projection lens unit 2a disposed on the front surface of the housing. Through the projection screen SC.

  Next, the configuration of the personal computer 1 will be described with reference to FIG. FIG. 2 shows a hardware configuration of the personal computer 1, and a north bridge 12 is connected to the CPU 11 that controls various processes and a front side bus FSB.

  The north bridge 12 is further connected to the main memory 13 via the memory bus MB, the graphic controller 14 and the graphic memory 15 via the graphics interface AGP, and the south bridge 16. The north bridge 12 mainly performs input / output control between them.

  The south bridge 16 is connected to a PCI bus 17, a keyboard / mouse 18, a video encoder 19, a wireless LAN interface (I / F) 20, a multi-disk drive 21, and a hard disk device (HDD) 22. Input / output control with 12 is performed.

  Note that the individual elements constituting the personal computer 1 are very common and well-known techniques, and therefore their description is omitted.

  Further, the video encoder 19 generates and outputs a VGA video signal, which is an analog image signal, from a given digital image signal, and a display composed of a color TFT (thin film transistor) liquid crystal display panel (not shown). The VGA video signal is output to the wireless LAN interface 20 while the display is driven.

  The wireless LAN interface 20 transmits / receives data to / from an external device including the data projector device 2 through a wireless LAN antenna 23 using, for example, a 2.4 [GHz] band radio wave in accordance with the IEEE 802.11g standard. For example, while the application program for presentation is executed on the personal computer 1, the VGA video signal for presentation is sent from the video encoder 19 to the wireless LAN interface 20, so that the wireless LAN interface 20 uses the video signal. Is transmitted from the wireless LAN antenna 23 to an external device.

Next, a schematic functional configuration of the data projector device 2 is shown in FIG.
Reference numeral 31 denotes an input / output connector unit including, for example, a pin jack (RCA) type video input terminal, a D-sub15 type RGB input terminal, and a USB (Universal Serial Bus) connector.

  Image signals of various standards input from the input / output connector unit 31 are in a predetermined format suitable for projection by an image conversion unit 33, also called a scaler, via an input / output interface (I / F) 32 and a system bus SB. After being unified into an image signal and appropriately stored in a video RAM 34 which is a buffer memory for display, the image signal is sent to the projection image processing unit 35.

  At this time, data such as symbols indicating various operation states for OSD (On Screen Display) is also superimposed on the image signal by the video RAM 34 as necessary, and the processed image signal is sent to the projection image processing unit 35.

  The projection image processing unit 35 multiplies a frame rate according to a predetermined format, for example, 30 [frames / second], the number of color component divisions, and the number of display gradations in accordance with the transmitted image signal. The micromirror element 36, which is a spatial light modulation element (SOM), is driven to display by high-speed time division driving.

  On the other hand, a light source lamp 38 using a high-pressure mercury lamp, for example, disposed in the reflector 37 emits white light with high luminance. The light source lamp 38 is AC driven by electric power from the ballast circuit 39. The white light emitted from the light source lamp 38 is colored into primary colors in a time-sharing manner through a color wheel 40 that rotates at high speed in synchronization with the display on the micromirror element 36, and is converted into a luminous flux having a uniform luminance distribution by the integrator 41. Later, the light is totally reflected by the mirror 42 and irradiated to the micromirror element 36.

  Then, an optical image is formed by the reflected light from the micromirror element 36, and the formed optical image is projected onto the screen SC (not shown) to be projected through the projection lens unit 2a.

  The projection lens unit 2a enlarges and projects the optical image formed by the micromirror element 36 onto a target such as a screen, and can change the focus position and the zoom position (projection angle of view) arbitrarily. .

  That is, both the focus lens and the zoom lens (not shown) in the projection lens unit 2a are controlled by moving back and forth along the optical axis direction, and these lenses are moved by rotating the stepping motor (M) 43. To do.

  Further, the power supply to the ballast circuit 39 for turning on the light source lamp 38, the rotational drive of the motor (M) 44 for the color wheel 40, and the marker sensor 45 provided at the rotation peripheral end of the color wheel 40 are provided. Both the detection of the segment boundary and the rotational driving of the stepping motor 43 are executed by the projection light processing unit 46.

  The projection image processing unit 35 outputs a lamp synchronization signal synchronized with the switching timing of the image for each color component displayed by the micromirror element 36 to the ballast circuit 39 and the projection light processing unit 46.

  The CPU 47 controls all the operations of the above circuits. The CPU 47 uses the main memory 48 composed of DRAM and the program memory 49 composed of an electrically rewritable non-volatile memory storing operation programs, various fixed data, and the like to perform control operations in the data projector device 2. Execute.

  The CPU 47 executes various projection operations in accordance with operation signals from the operation unit 50. The operation unit 50 includes a key operation unit provided in the housing body of the data projector device 2 and an infrared receiving unit that receives an infrared modulation signal from a remote controller (not shown) dedicated to the data projector device 2. Directly outputs to the CPU 47 a key code signal based on the key operated via the key operation unit or the remote controller.

  The CPU 47 is further connected to an audio processing unit 51 and a wireless LAN interface (I / F) 52 via the system bus SB.

  The sound processing unit 51 includes a sound source circuit such as a PCM sound source, converts the sound data given during the projection operation into an analog signal, drives the speaker unit 53 to emit a loud sound, or generates a beep sound or the like as necessary.

  The wireless LAN interface 52 transmits / receives data to / from devices including the personal computer 1 via a wireless LAN antenna 54 using, for example, 2.4 [GHz] band radio waves in accordance with the IEEE 802.11g standard. While the personal computer 1 is executing various application programs such as a presentation, the VGA video signal transmitted from the personal computer 1 by radio is received and output to the image conversion unit 33.

Next, the operation of the above embodiment will be described.
FIG. 4 shows various documents and materials stored in the hard disk device 22 by operating the keyboard / mouse 18 on the personal computer 1 side with the personal computer 1 connected to the data projector device 2 by wireless LAN. This is the basic processing content executed for the output of image data when the image data is expanded and transmitted.

  The operation of FIG. 4 is controlled by the CPU 11 executing an operation program in the main memory 13 based on basic setting information stored in advance in the hard disk device 22.

  For various image data stored in the hard disk device 22, the personal computer 1 determines whether the personal computer 1 has determined that the personal computer 1 is not suitable for publication or has been determined to be highly confidential. It is assumed that identification information is added and set in advance to limit output to the outside. Hereinafter, image data in which identification information is set in advance to limit output to the outside of the personal computer 1 will be referred to as a private file.

  It is assumed that the hard disk device 22 stores in advance image data selected to be output to the outside instead of the private file. Hereinafter, this image data is referred to as a dummy file.

  At the beginning of the process of FIG. 4, the process waits for setting to output image data to the data projector apparatus 2 side outside the apparatus, for example, by wireless LAN connection (step S101).

  If it is determined that the setting for external output has been made, various setting processes such as establishing synchronization with the data projector apparatus 2 side via the wireless LAN interface 20 and the wireless LAN antenna 23 are executed. Prepare for output of image data (step S102).

  Then, it waits for the user of the personal computer 1 to select and develop the image data to be output by the keyboard / mouse 18 (step S103).

  If image data is selected, it is determined in step S103, and then the image data is determined depending on whether or not identification information for limiting output to the outside is additionally set for the selected image data. Is a private file (step S104).

  If it is determined that the image data is not a private file, the image data is expanded on the graphic memory 15 as it is, and then the expanded image data is externally transmitted via the wireless LAN interface 20 and the wireless LAN antenna 23. Are output to the data projector apparatus 2 side (step S105).

  Thereafter, the process returns to step S103 to prepare for the selection of new image data.

  On the other hand, if the identification information for restricting the output to the outside is added to the image data in step S104, and it is determined that the image file is a private file, the dummy file stored in the data projector device 2 is stored in the image file. After being read instead of the private file and developed on the graphic memory 15, the developed image data is output to the external data projector apparatus 2 via the wireless LAN interface 20 and the wireless LAN antenna 23 (step S106).

At the same time, in response to the selection of the private file as the display only in the personal computer 1,
"An image that cannot be output externally has been selected
Please select the correct image. "
Is displayed, and a confirmation button is displayed in the window (step S107).

  After displaying such a warning, it is determined whether or not the user has confirmed the warning depending on whether or not a click operation or the like has been performed on the button (step S108).

  When a confirmation operation is performed by the user, the determination is made in step S108, and the output of the image data of the dummy file is stopped at that time (step S109), so that correct image data is newly selected. Accordingly, the process returns to the process from step S103.

  As described in detail above, according to the present embodiment, the personal computer 1 that is an output device that outputs image data alone does not inadvertently output image data that is set not to be disclosed, and In order to automatically select and output image data of a dummy file prepared in advance for an erroneous selection operation, the fact that image data that should not be disclosed exists in the personal computer 1 itself. It becomes possible to keep it secret.

  In addition, in the above-described embodiment, when the image data of the private file is selected to be output in error, the user is warned and confirmed that the erroneous operation has been performed as a display only in the personal computer 1, and the confirmation has been obtained. Since the image data of the dummy file is stopped at the time, the user is promptly prompted to select and output the correct image data, and the smooth projection operation can be continued naturally even after selecting the wrong image.

(Second Embodiment)
A second embodiment when the present invention is applied to an image projection system using a personal computer and a data projector apparatus will be described below with reference to the drawings.

  The appearance and connection configuration of the entire system are basically the same as in FIG. 1, the hardware configuration of the personal computer is the same as in FIG. 2, and the schematic functional configuration of the data projector apparatus is basically the same as in FIG. Therefore, the same reference numerals are used for the same parts, and illustration and description thereof are omitted.

Next, the operation of the above embodiment will be described.
FIG. 5 shows various documents and materials stored in the hard disk device 22 by operating the keyboard / mouse 18 on the personal computer 1 side with the personal computer 1 connected to the data projector device 2 by a wireless LAN. This is the basic processing contents executed by both sides for image data transmission and reception when the image data is expanded and transmitted, and the data projector apparatus 2 receiving the image data projects the image data.

  The operation of FIG. 5 is controlled on the personal computer 1 side by the CPU 11 executing an operation program in the main memory 13 based on basic setting information stored in advance in the hard disk device 22.

  For various image data stored in the hard disk device 22, the personal computer 1 determines whether the personal computer 1 has determined that the personal computer 1 is not suitable for publication or has been determined to be highly confidential. It is assumed that identification information is added and set in advance to limit output to the outside. Hereinafter, image data in which identification information is set in advance to limit output to the outside of the personal computer 1 will be referred to as a private file.

  It is assumed that the hard disk device 22 stores in advance an instruction code to be output to the outside instead of the private file. This instruction code is hereinafter referred to as a lock signal.

  Further, in the data projector device 2, it is assumed that image data provided in the case where image data not suitable for projection is selected on the personal computer 1 side is stored in the program memory 49 in advance. Hereinafter, this image data is referred to as a dummy file.

  At the beginning of the processing of FIG. 5, the personal computer (PC) 1 side waits for setting to output image data to the data projector apparatus 2 side outside the apparatus, for example, by wireless LAN connection (step S301).

  If it is determined that the setting for external output has been made, various setting processes such as establishing synchronization with the data projector apparatus 2 side via the wireless LAN interface 20 and the wireless LAN antenna 23 are executed. Prepare for output of image data (step S302).

  Then, it waits for the user of the personal computer 1 to select and develop the image data to be output by the keyboard / mouse 18 (step S303).

  If image data is selected, it is determined in step S303, and then the image data is determined depending on whether or not identification information for restricting output to the outside is additionally set for the selected image data. Is a private file (step S304).

  If it is determined that the image data is not a private file, the image data is expanded on the graphic memory 15 as it is, and then the expanded image data is externally transmitted via the wireless LAN interface 20 and the wireless LAN antenna 23. Are output to the data projector apparatus 2 side (step S305), and then the process returns to step S103 to prepare for the selection of new image data.

  The data projector device (PJ) 2 side waits for image data to be sent from the personal computer 1 (step S401), and when it is determined that the image data has been sent, the received image data is the original projection. It is determined whether or not the image data is suitable for the above-mentioned lock signal (step S402).

  If it is determined that the received image data is not a lock signal, a corresponding optical image is formed by the micromirror element 36 from the received image data, and projection onto the screen SC is executed by the projection lens unit 2a. (Step S403), the process returns to step S401 to prepare for the projection of the next image data.

  On the personal computer 1 side, identification information for restricting output to the outside is added to the image data in step S304, and if it is determined that the file is a private file, it is stored in the data projector device 2. The lock signal is read instead of the private file, and is output to the external data projector device 2 via the wireless LAN interface 20 and the wireless LAN antenna 23 (step S306).

At the same time, the personal computer 1 selects a private file as a display only in the personal computer 1, for example,
"An image that cannot be output externally has been selected
Please select the correct image. "
Is displayed, and a confirmation button is displayed in the window (step S307).

  After displaying such a warning, it is determined whether or not the user has confirmed the warning based on whether or not a click operation or the like has been performed on the button (step S308).

  When a confirmation operation is performed by the user, it is determined in step S308, and after that, a release signal for discarding the lock signal is output to the data projector apparatus 2 (step S309), and new correct image data is obtained. In order to prepare for the selection, the process returns to step S303.

  On the other hand, on the side of the data projector device 2 that receives the lock signal output by the processing in step S306, the image data received in step S401 and received in step S402 is not suitable for original projection. If it is determined that the signal is a lock signal, a dummy file is read from the program memory 49 and developed on the video RAM 34, and then a light image is formed by the micromirror element 36 using the developed image data, and the projection lens unit 2a. Then, the image is projected toward the screen SC (step S405).

  Thereafter, it waits for further image data to be received from the personal computer 1 side (step S406). When it is determined that the image signal has been received, it is determined whether or not the image data is a release signal for discarding the lock signal (step S407).

  If it is determined that the signal is not a release signal for discarding the lock signal, the process returns to step S406 to continue receiving the signal.

  If a release signal for discarding the lock signal is received, it is determined in step S407, the projection of the image data of the dummy file is stopped (step S408), and the personal computer 1 starts again. In order to wait for the image data to be sent, the process returns to step S401.

  As described in detail above, according to the present embodiment, it should not be originally disclosed by the control of both the personal computer 1 that outputs an image and the data projector apparatus 2 that inputs and displays image data. Images that should not be made public in order to automatically select and output dummy file image data prepared in advance for erroneous selection operations without inadvertently outputting the set image data It is possible to securely conceal that the data exists in the personal computer 1 itself.

  In addition, in the above-described embodiment, when the image data of the private file is selected to be output in error, the user is warned and confirmed that the erroneous operation has been performed as a display only in the personal computer 1, and the confirmation has been obtained. Since the image data of the dummy file is stopped at the time, the user is promptly prompted to select and output the correct image data, and the smooth projection operation can be continued naturally even after selecting the wrong image.

  The first and second embodiments have been described for the case where the present invention is applied to an image projection system using a personal computer and a data projector device. However, the present invention is not limited to this, and image data is not limited thereto. Can be realized in the same manner by a device that outputs the image data, a system of an image display device that receives and displays image data output from the device, or an image output device alone.

  Alternatively, even in the first and second embodiments, for example, the operation program stored in the recording medium attached to the product of the data projector device 2 is installed and executed on the personal computer 1 side. The operation as in the embodiment may be realized.

  In the first and second embodiments, files that are not suitable for display are designated in advance as private files. For example, when there are a large number of private files, the files are combined into one folder. The private file may be automatically specified for all file data stored in this folder. In this way, a plurality of files can be easily designated as private files.

  In addition, when the above-mentioned folder is selected during image display, file information indicating information such as an application type or file name of a file stored in this folder is not displayed, and a dummy is used instead. The file information image may be displayed. In this way, even when the folder is selected, the existence of the file stored therein can be completely hidden without leaking any information.

  Further, the personal computer 1 as the image output apparatus in the second embodiment can be replaced with, for example, a USB memory. Specifically, when the data projector device 2 designates a private file for the file output from the USB memory, and this private file is selected when projecting the file image, a dummy file as described above is used. Processing for displaying image data is executed. That is, in this case, the output operation to the outside described above is equivalent to the projection operation of the private file.

  Furthermore, in the first and second embodiments, a configuration that designates a file that is not suitable for display as a private file is not limited to this. For example, a configuration that designates each type of application may be used.

  In addition, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention in the implementation stage. Further, the functions executed in the above-described embodiments may be combined as appropriate as possible. The above-described embodiment includes various stages, and various inventions can be extracted by an appropriate combination of a plurality of disclosed constituent elements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, if the effect is obtained, a configuration from which the constituent requirements are deleted can be extracted as an invention.

The figure which shows the external appearance and connection structure of the whole image projection system which concern on the 1st Embodiment of this invention. FIG. 2 is an exemplary block diagram showing a hardware circuit configuration of the personal computer according to the embodiment. FIG. 2 is a block diagram showing a schematic functional configuration of the data projector apparatus according to the embodiment. 6 is an exemplary flowchart illustrating processing contents for image data output to a basic external device in the personal computer according to the embodiment. 10 is a flowchart showing the contents of processing for basic image data transfer in both the personal computer and the data projector apparatus according to the second embodiment of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Personal computer, 2 ... Data projector apparatus, 2a ... Projection lens unit, 11 ... CPU, 12 ... North bridge, 13 ... Main memory, 14 ... Graphic controller, 15 ... Graphic memory, 16 ... South bridge, 17 ... PCI bus , 18 ... Keyboard / mouse, 19 ... Video encoder, 20 ... Wireless LAN interface (I / F), 21 ... Multi-disk drive, 22 ... Hard disk device (HDD), 23 ... Wireless LAN antenna, 31 ... Input / output connector section, 32 ... Input / output interface (I / F), 33 ... Image conversion unit, 34 ... Video RAM, 35 ... Projection image processing unit, 36 ... Micromirror element (SOM), 37 ... Reflector, 38 ... Light source lamp, 39 ... Ballast Circuit, 40 ... color wheel, 41 ... in Greater, 42 ... Mirror, 43 ... Stepping motor (M), 44 ... Motor (M), 45 ... Marker sensor, 46 ... Projection light processing unit, 47 ... CPU, 48 ... Main memory, 49 ... Program memory, 50 ... Operation , 51 ... Audio processing unit, 52 ... Wireless LAN interface (I / F), 53 ... Speaker unit, 54 ... Wireless LAN antenna, AGP ... Graphics interface, FSB ... Front side bus, MB ... Memory bus, SB ... System bus , SC ... screen.

Claims (10)

Data storage means for storing a plurality of data;
Alternative storage means for storing alternative data;
Output means for outputting data to the outside of the device;
Prohibition setting means for prohibiting external output of arbitrary data stored in the data storage means;
Selecting means for selecting data to be stored in the data storage means;
Determining means for determining whether the data selected by the selecting means is set to prohibit external output by the prohibit setting means;
When it is determined that the data for which prohibition of external output has been set by the determination means has been selected by the selection means, output control that causes the output means to output alternative data stored in the alternative storage means instead of the data to the outside of the apparatus And a data output device. And a warning means for prompting confirmation that the prohibition of external output is set for the selected data when it is determined that the data for which prohibition of external output is set by the determination means is selected by the selection means. And
The output control means stops outputting the substitute data to the outside of the apparatus by the output means when it is confirmed that the prohibition of external output is set by the warning means. The data output device according to 1.   3. The prohibition setting means prohibits external output for all data stored in a predetermined folder among a plurality of data stored by the data storage means. Data output device.   4. The data output apparatus according to claim 3, wherein the prohibition setting unit prohibits output of file information of a file stored in the folder to the outside. A data display system having a data output device for outputting data and a data display device for displaying data output by the data output device,
The data output device is
Data storage means for storing a plurality of data;
Output means for outputting data to the data display device;
Prohibition setting means for prohibiting output of arbitrary data stored in the data storage means;
Selecting means for selecting data to be stored in the data storage means;
Determination means for determining whether the data selected by the selection means is set to prohibit output by the prohibition setting means;
When it is determined that the data for which output prohibition has been set by the determination means has been selected by the selection means, the output means causes the image display apparatus to output instruction information for instructing display of a substitute image instead of the data. Control means,
The data display device
Input means for inputting the data output by the output means;
Display means for displaying data input by the input means;
Alternative storage means for storing alternative data;
Determination means for determining whether or not the instruction information is input instead of data by the input means;
A data display system comprising: a display control unit that causes the display unit to display alternative data stored in the alternative storage unit when it is determined that the instruction information is input by the determination unit. The image output device
And a warning means for prompting confirmation that the prohibition of external output is set for the selected data when it is determined that the data for which prohibition of external output is set by the determination means is selected by the selection means. And
The output control means stops outputting the substitute data to the outside of the apparatus by the output means when it is confirmed that the prohibition of external output is set by the warning means. 5. The data display system according to 5. A data storage method for storing a plurality of data, an output unit for outputting data to the outside of the device, and a data output method in an apparatus having an alternative storage unit for storing alternative data
A prohibition setting step for setting prohibition of external output of arbitrary data stored in the data storage unit;
A selection step of selecting data to be stored in the data storage unit;
A determination step of determining whether the data selected in the selection step is set to prohibit external output in the prohibition setting step;
When it is determined that the data for which prohibition of external output has been set in the determination step is selected in the selection step, the output control causes the output unit to output substitute data stored in the substitute storage unit instead of the data to the outside of the apparatus. A data output method comprising: a step. A data output unit having a data storage unit for storing a plurality of data and an output unit for outputting data, an input unit for inputting data, an alternative storage unit for storing alternative data, and data input at the input unit A data display method in a system having a data display device including a display unit for displaying,
A prohibition setting step for prohibiting output of arbitrary data stored in the data storage unit;
A selection step of selecting data to be stored in the data storage unit;
A determination step of determining whether the data selected in the selection step is set to prohibit output in the prohibition setting step;
When it is determined that the data for which output prohibition has been set in the determination step is selected in the selection step, an output control step for causing the output unit to output instruction information instructing display of alternative data instead of the data;
A determination step of determining whether the instruction information is input instead of data in the input unit;
A data display method comprising: a display control step of causing the display unit to display substitute data stored in the substitute storage unit when it is determined that the instruction information is input in the determination step. A data storage unit that stores a plurality of data, an output unit that outputs data to the outside of the device, and a program executed by a computer built in a device that includes an alternative storage unit that stores alternative data,
A prohibition setting step for setting prohibition of external output of arbitrary data stored in the data storage unit;
A selection step of selecting data to be stored in the data storage unit;
A determination step of determining whether the data selected in the selection step is set to prohibit external output in the prohibition setting step;
When it is determined that the data for which prohibition of external output has been set in the determination step has been selected in the selection step, the output control causes the output unit to output alternative data stored in the alternative storage unit instead of the data to the outside of the apparatus. A program that causes a computer to execute the steps. A data output unit having a data storage unit for storing a plurality of data and an output unit for outputting data, an input unit for inputting data, an alternative storage unit for storing alternative data, and data input at the input unit A program executed by a computer incorporated in both devices in a system having an image display device including a display unit for displaying,
A prohibition setting step for prohibiting the output of arbitrary data stored in the data storage unit;
A selection step of selecting data to be stored in the data storage unit;
A determination step for determining whether the data selected in the selection step is set to prohibit output in the prohibition setting step;
An output control step for causing the output unit to output instruction information for instructing display of alternative data instead of the data when it is determined that the data for which output prohibition is set in the determination step is selected in the selection step;
A determination step of determining whether or not the instruction information is input instead of data in the input unit;
A program for causing a computer to execute a display control step of displaying, on the display unit, alternative data stored in the alternative storage unit when it is determined that the instruction information is input in the determination step.

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