Abstract: A display system includes a display device and an information terminal for communicating with the display device. The information terminal includes a generation unit that generates playback control information that includes information indicating a storing position of playback content data selected from content data stored in a storage part and is used to control playback of the playback content data, and a transmission unit that transmits the playback control information to the display device. The display device includes a display control unit that makes reference to the information indicating the storing position included in the playback control information received from the transmission unit, and plays back the playback content data according to the playback control information.

Abstract: A communication apparatus is capable of making wireless communication without using an access point, by using a network identifier having communication identification information identifying a class of communication setting containing an IP address and frequency information. The communication apparatus includes: a detecting unit that detects another communication apparatus causing failure of the wireless communication due to overlap of the network identifier; and a changing unit that changes the network identifier when the detecting unit detects another communication apparatus causing failure of the wireless communication. The changing unit changes the network identifier so as to change the IP address of the communication apparatus or a frequency that the communication apparatus uses.

Abstract: A wireless communication apparatus is for communicating with an access point through a first communication and communicating with another communication apparatus through a second communication via a network including an access point. The wireless communication apparatus includes a detection unit configured to detect a status of the first communication; and a reconnection unit configured to reconnect the first communication and then reconnect the second communication by using connection information of a corresponding network layer of the wireless communication apparatus acquired through the first communication when disconnection of the first communication is detected by the detection unit.

Abstract: A wireless communication system includes a first wireless terminal including a first network control unit that sets first wireless setting information as current wireless setting information of the first wireless terminal, a generating unit that generates an SSID including identification information of the first wireless terminal, and a first wireless communication unit that transmits a beacon including the SSID; and a second wireless terminal including a second wireless communication unit that receives the beacon, an extracting unit that extracts the SSID from the beacon and extracts the identification information from the SSID, and a second network control unit that sets second wireless setting information, stored in the second wireless terminal and corresponding to the first wireless setting information, as current wireless setting information of the second wireless terminal and establishes a wireless connection with the first wireless terminal based on the identification information and the second wireles

Abstract: A communication device includes a main control part configured to receive and process an image signal; a first network control part configured to convert data input from an external device into the image signal and provide the main control part with the image signal; a sub control part configured to detect a power-on command; and a second network control part configured to control communications with the external device via a network to provide the first network control part with data input from the external device. Power supplies to the main control part, the sub control part, the first network control part and the second network control part are independently controlled.

Abstract: An image processing apparatus includes: a coefficient calculation unit that calculates a coefficient for converting image data having a predetermined number of pixels to image data having a smaller number of pixels than the predetermined number of pixels, including a coefficient multiplied by an integer power of 2, as a conversion coefficient; a calculation unit that multiplies each pixel value of image data prior to image reduction processing by the conversion coefficient previously calculated by the coefficient calculation unit thereby to calculate each pixel value of the image data subjected to the image reduction processing; and a shift unit that shifts each of the pixel values calculated by the calculation unit by a number of bits to counteract the integer power of 2-multiplied coefficient included in the conversion coefficient.

Abstract: An image processing apparatus includes: a coefficient calculation unit that calculates a coefficient for converting image data having a predetermined number of pixels to image data having a smaller number of pixels than the predetermined number of pixels, including a coefficient multiplied by an integer power of 2, as a conversion coefficient; a calculation unit that multiplies each pixel value of image data prior to image reduction processing by the conversion coefficient previously calculated by the coefficient calculation unit thereby to calculate each pixel value of the image data subjected to the image reduction processing; and a shift unit that shifts each of the pixel values calculated by the calculation unit by a number of bits to counteract the integer power of 2-multiplied coefficient included in the conversion coefficient.