Abstract: A projection direction change device includes a mirror that reflects light emitted from a projection lens unit of a projector, a mirror support part that rotatably supports the mirror around a first axis and a second axis, a first drive part that rotary drives the mirror around the first axis, and a second drive part that rotary drives the mirror around the second axis. An intersecting point of the first and second axes is positioned closer to the projection lens unit than a geometric barycenter of the mirror is.

Abstract: A content generation method generates image content to be projected at a projection position in a real space by a projector. In a first acquisition process, space information regarding a virtual space corresponding to the real space is acquired. In a second acquisition process, display position information regarding a display position corresponding to the projection position in the virtual space is acquired. In a third acquisition process, reference position information regarding a reference position in the virtual space is acquired. In a generation process, an image including an object viewed from the reference position when the object is displayed at the display position in the virtual space is generated as the image content, based on the space information, the reference position information, and the display position information.

Abstract: A projection direction change device includes a mirror that reflects light emitted from a projection lens unit of a projector, a mirror support part that rotatably supports the mirror around a first axis and a second axis, a first drive part that rotary drives the mirror around the first axis, and a second drive part that rotary drives the mirror around the second axis. An intersecting point of the first and second axes is positioned closer to the projection lens unit than a geometric barycenter of the mirror is.

Abstract: The multi-display apparatus of the present disclosure is a multi-display apparatus for displaying a single image by combining a plurality of displays. The multi-display apparatus includes the plurality of displays connected to a network. Each of the plurality of displays includes a communication unit that communicates via the network and a controller. The controller determines whether a video signal can be reproduced at a predetermined display frame rate. When the video signal cannot be reproduced at the predetermined display frame rate, the controller changes a display frame rate from the predetermined display frame rate, and notifies other display of the display frame rate changed. When the display frame rate changed is notified from the other display, the controller changes the display frame rate to the display frame rate notified to reproduce the video signal.

Abstract: A multi-display device includes a plurality of displays that are connected through a network to enable the plurality of displays to communicate with each other. In the multi-display device, the respective displays decode the same video content item transmitted to the respective displays, identify respective desired areas based on arrangements of the respective displays in the multi-display device, and display respective images located in the identified areas in the same timing.

Abstract: The multi-display apparatus of the present disclosure is a multi-display apparatus for displaying a single image by combining a plurality of displays. The multi-display apparatus includes the plurality of displays connected to a network. Each of the plurality of displays includes a communication unit that communicates via the network and a controller. The controller determines whether a video signal can be reproduced at a predetermined display frame rate. When the video signal cannot be reproduced at the predetermined display frame rate, the controller changes a display frame rate from the predetermined display frame rate, and notifies other display of the display frame rate changed. When the display frame rate changed is notified from the other display, the controller changes the display frame rate to the display frame rate notified to reproduce the video signal.

Abstract: A wireless LAN adaptor includes an auto-run program for a connection process, containing a projector identifier for specifying a connection destination. In the process while this auto-run program is executed, an electric field intensity measuring unit measures the electric field intensity of a response radio wave from the wireless projector. The control unit interrupts connection operation and makes the display unit of the PC produce a display for requesting judgment when the electric field intensity is smaller than a predetermined value.

Abstract: A wireless local area network (WLAN) device includes a WLAN adapter having a USB terminal connected to a USB terminal of a PC (personal computer). The WLAN adapter is loaded with a program for setting a WLAN and executing a communication, and a connection of the adapter to the PC prompts the PC to recognize the adapter as a CD-ROM drive, and prompts the program for setting a WLAN and executing a communication to run automatically. The PC loads data of SCSI standard into the WLAN adapter by using a vender defined command of SCSI standard by way of the program for setting a WLAN and executing a communication. The WLAN adapter converts the data of SCSI standard into data for setting a WLAN or data of TCP/IP (Transmission Control Protocol/Internet Protocol), and sets the WLAN and executes the communication.

Abstract: A wireless LAN adaptor includes an auto-run program for a connection process, containing a projector identifier for specifying a connection destination. In the process while this auto-run program is executed, an electric field intensity measuring unit measures the electric field intensity of a response radio wave from the wireless projector. The control unit interrupts connection operation and makes the display unit of the PC produce a display for requesting judgment when the electric field intensity is smaller than a predetermined value.

Abstract: A wireless local area network (WLAN) device includes a WLAN adapter having a USB terminal connected to a USB terminal of a PC (personal computer). The WLAN adapter is loaded with a program for setting a WLAN and executing a communication, and a connection of the adapter to the PC prompts the PC to recognize the adapter as a CD-ROM drive, and prompts the program for setting a WLAN and executing a communication to run automatically. The PC loads data of SCSI standard into the WLAN adapter by using a vender defined command of SCSI standard by way of the program for setting a WLAN and executing a communication. The WLAN adapter converts the data of SCSI standard into data for setting a WLAN or data of TCP/IP (Transmission Control Protocol/Internet Protocol), and sets the WLAN and executes the communication.

Abstract: In a case where a thumbnail image is displayed at the time of insertion of an image file storage medium including an automatic reproduction file, the thumbnail image is displayed only for the image file which contains description of automatic reproduction in an automatic reproduction file. Also, a thumbnail image of an image file which contains description of non-automatic reproduction in the automatic reproduction file is replaced with a dummy image or displayed as a thumbnail image not apparently capable of being recognized in response to a user request.

Abstract: In a case where a thumbnail image is displayed at the time of insertion of an image file storage medium including an automatic reproduction file, the thumbnail image is displayed only for the image file which contains description of automatic reproduction in an automatic reproduction file. Also, a thumbnail image of an image file which contains description of non-automatic reproduction in the automatic reproduction file is replaced with a dummy image or displayed as a thumbnail image not apparently capable of being recognized in response to a user request.

Abstract: In a case where a thumbnail image is displayed at the time of insertion of an image file storage medium including an automatic reproduction file, the thumbnail image is displayed only for the image file which contains description of automatic reproduction in an automatic reproduction file. Also, a thumbnail image of an image file which contains description of non-automatic reproduction in the automatic reproduction file is replaced with a dummy image or displayed as a thumbnail image not apparently capable of being recognized in response to a user request.

Abstract: The present invention provides a presentation system, a display device, and a program which realize a smoother presentation performance in case where information a presenter wishes to refer to is displayed in a terminal but not in a display device. The presentation system of the present invention is structured, for instance, by connecting a PC 100 and a projector 200 via a LAN 50. A display unit of the PC 100 can be set up to display information including, for example, explanatory notes, but when making the projector 200 display an image, the information will not be displayed by executing a data modification which makes the information invisible. The information such as the explanatory notes may be placed at an arbitrary location on the display unit 102 and this enables a smoother presentation performance.

Abstract: A display, on which pixels are fixed in number for display, is able to display every video signal with a simple circuit structure. A one-clock delay circuit delays a reference signal by one clock for output. A multiplexer switches between the one-clock-delayed signal and the reference signal for output. An A/D converter subjects a video signal to two-phase processing with reference to an output signal from the multiplexer. A comparator outputs a control signal to the multiplexer to let the multiplexer select the one-clock delayed signal when determining, based on a result obtained by detection in the first and second back porch detection circuits and, that a head of video data is not included in first phase output data.

Abstract: An image display apparatus is provided for enlarging and projecting a light emitted from a plurality of self-emitting elements on a screen by beam scanning means, which is an image display apparatus having little or no luminance unevenness by solving the conventional problem of causing luminance unevenness in images projected on the screen due to a variance in luminance characteristics of each self-emitting element. It is configured such that a part of the light scanned on the screen from the beam scanning means is provided to a photodetector element that converts the intensity of the light into an electric signal so as to correct a driving signal to be supplied to the self-emitting element by the intensity of the light detected by this photodetector element.

Abstract: With the present invention, a synchronous processor circuit can be implemented with a simplified circuit by improving a display's synchronization stability, and by setting a pulse width of a vertical synchronizing signal to be integral multiple of the horizontal synchronizing signal.

Abstract: The present invention provides a presentation system, a display device, and a program which realize a smoother presentation performance in case where information a presenter wishes to refer to is displayed in a terminal but not in a display device. The presentation system of the present invention is structured, for instance, by connecting a PC 100 and a projector 200 via a LAN 50. A display unit of the PC 100 can be set up to display information including, for example, explanatory notes, but when making the projector 200 display an image, the information will not be displayed by executing a data modification which makes the information invisible. The information such as the explanatory notes may be placed at an arbitrary location on the display unit 102 and this enables a smoother presentation performance.

Abstract: An image display apparatus is provided for enlarging and projecting a light emitted from a plurality of self-emitting elements on a screen by beam scanning means, which is an image display apparatus having little or no luminance unevenness by solving the conventional problem of causing luminance unevenness in images projected on the screen due to a variance in luminance characteristics of each self-emitting element. It is configured such that a part of the light scanned on the screen from the beam scanning means is provided to a photodetector element that converts the intensity of the light into an electric signal so as to correct a driving signal to be supplied to the self-emitting element by the intensity of the light detected by this photodetector element.

Abstract: A synchronize processing circuit offers a stable supply of synchronizing signal to control circuits in display devices.