Abstract: A projection system is configured to project first and second projection images, with end portions of the first and second projection images overlapping. The projection system includes a first projector projecting the first projection image and a second projector projecting the second projection image. The first projector acquires first projection image data and a first control signal, the first projection image data representing the first projection image that is a clipping of an original projection image, the first control signal being linked to the first projection image data and being for controlling driving of the first projector. The second projector acquires second projection image data and a second control signal, the second projection image data representing the second projection image that is a clipping of the original projection image, the second control signal being linked to the second projection image data and being for controlling driving of the second projector.

Abstract: A video display system of the present disclosure includes a first display device configured to project a background image onto a region of an entire image including a predetermined important image, the background image including a masked region of the important image clipped from the entire image, a second display device configured to project the important image clipped from the entire image onto the region of the important image in the background image that has been projected, and a controller configured to control a rotation angle around an optical axis the second display device with respect to the important image to be projected, in accordance with an aspect ratio of the important image to project the important image clipped from the entire image onto the region of the important image.

Abstract: A video display system of the present disclosure includes a first display device configured to project a background image onto a region of an entire image including a predetermined important image, the background image including a masked region of the important image clipped from the entire image, a second display device configured to project the important image clipped from the entire image onto the region of the important image in the background image that has been projected, and a controller configured to control a rotation angle around an optical axis the second display device with respect to the important image to be projected, in accordance with an aspect ratio of the important image to project the important image clipped from the entire image onto the region of the important image.

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 communication apparatus is for use in a wireless LAN, and performs wireless communication between access point apparatuses each having a function of a wireless LAN relay. A network identification information storage unit stores predetermined network identification information indicating that the wireless communication apparatus belongs to the wireless LAN, and an access point apparatus information generating unit generates access point apparatus identification information from information unique to an access point apparatus. An SSID generating unit generates an SSID including the network identification information and the access point apparatus identification information, and a wireless transmitting and receiving unit receives a probe request signal and transmit a probe response signal including the SSID in response to the probe request signal.

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: Provided is a wireless network system operable to exchange information, which is pertinent to a wireless connection, between an information terminal apparatus and an information display apparatus before the wireless connection is established and to present to a user a state of the wireless connection, which proceeds up until the wireless connection has been established. Before the wireless connection to the information terminal apparatus is established, the information display apparatus generates wireless network information, causes an SSID beacon to include the wireless network information, and transmits the SSID beacon. The information terminal apparatus causes an SSID beacon to include information to be displayed on a display device. The information display apparatus obtains the information from the SSID beacon and causes the display device to display the information.

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.