Abstract: A display control method includes receiving, by a first terminal device, operation for selecting a first terminal mode, which is a mode used by the first terminal device, among a plurality of modes designating a range of an image, outputting, by the first terminal device, a first image, which is an image in a first range, designated by the first terminal mode among images generated by the first terminal device, receiving, by a second terminal device, operation for selecting a second terminal mode, which is a mode used by the second terminal device, among the plurality of modes, outputting, by the second terminal device, a second image, which is an image in a second range, designated by the second terminal mode among images generated by the second terminal device, and displaying, by a display device, an image in which the first image and second image are side by side.

Abstract: A display control method includes displaying a first small image generated by shrinking a first image generated by an application program, on an actual display provided in an output device, receiving an operation on the first small image, drawing, on a virtual display, a second image generated by the application program executing processing corresponding to the operation on the first small image, displaying the second image drawn on the virtual display, using a display device, and displaying a second small image generated by shrinking the second image, on the actual display.

Abstract: A communication device includes: a communication unit which receives control data; and a main control unit which controls an operation of the communication device, based on the control data received by the communication unit. The communication device operates in a first standby state where the main control unit stops at least a part of operations and where the communication unit detects only an access to a specific port that designates the communication device as a destination, and in a second standby state where the main control unit can execute the operations and controls the operation of the communication device, based on the control data. The communication unit wakes up the main control unit if an access to the specific port is detected in the first standby state.

Abstract: An external instrument that wirelessly communicates with a projector is allowed to communicate with a communication counterpart other than the projector. A projector includes a projection section, a communication section, which wirelessly communicates with a first apparatus and communicates with a second apparatus, an evaluation section, which determines the destination of communication data received via the communication section, and a control section. In a case where the evaluation section determines that the destination of the communication data is the projector, the control section causes the projection section to project an image based on image data included in the communication data. In a case where the evaluation section determines that the destination of the communication data received from the first apparatus is not the projector, the control section causes the communication section to transmit the communication data to the second apparatus.

Abstract: A projection system includes a first projector that projects an image based on image data in a first projection direction, a second projector that projects an image based on image data in a second projection direction, and a storage section that stores the image data representing the image projected by the first projector. The projection system can switch the image projected by the second projector to the image based on the image data stored in the storage section.

Abstract: A display apparatus includes a display section, a wireless communication section configured to perform wireless connection to an external apparatus using first connection information that can be acquired from an external radio tag, and a storing section configured to store second connection information different from the first connection information. The wireless communication section is capable of performing the wireless connection to the external apparatus or another external apparatus using the second connection information. The second connection information is changeable.

Abstract: A display apparatus includes a display unit configured to display an image, a wireless tag, a wireless communication unit configured to wirelessly communicate with an external terminal apparatus, and a control unit configured to switch an operation state of the display apparatus to at least a normal operation state and a power saving state. When detecting that the wireless tag communicates with the terminal apparatus in the power saving state, the control unit shifts the operation state to the normal operation state. The wireless communication unit returns from the power saving state to the normal operation state and establishes a wireless communication with the terminal apparatus.

Abstract: A display device includes: a first wireless communication unit which performs wireless communication in a first format with an external device; a storage unit which stores connection information used in the wireless communication in the first format; a change unit which changes the connection information stored in the storage unit; and a display unit which displays an image received via the first wireless communication unit from the external device. A first information processing device includes: a wireless reader/writer which performs wireless communication in a second format in order to read information from or write information in a wireless tag; an acquisition unit which acquires the changed connection information; and a writing unit which outputs, to the wireless reader/writer, a signal for writing the connection information acquired by the acquisition unit into a first wireless tag.

Abstract: A display system includes a projector adapted to display a conference-use image, a storage section adapted to store a relative position between a virtual viewing position set in advance to the projector and the projector, a virtual image generation section adapted to generate the virtual image data corresponding to an image obtained by viewing the conference-use image displayed by the projector from the virtual viewing position, a transmitting device adapted to transmit the virtual image data generated by the virtual image generation section, and a terminal device adapted to display the virtual image based on the virtual image data transmitted by the transmitting device.

Abstract: A communication device includes: a communication unit which receives control data; and a main control unit which controls an operation of the communication device, based on the control data received by the communication unit. The communication device operates in a first standby state where the main control unit stops at least a part of operations and where the communication unit detects only an access to a specific port that designates the communication device as a destination, and in a second standby state where the main control unit can execute the operations and controls the operation of the communication device, based on the control data. The communication unit wakes up the main control unit if an access to the specific port is detected in the first standby state.

Abstract: An external instrument that wirelessly communicates with a projector is allowed to communicate with a communication counterpart other than the projector. A projector includes a projection section, a communication section, which wirelessly communicates with a first apparatus and communicates with a second apparatus, an evaluation section, which determines the destination of communication data received via the communication section, and a control section. In a case where the evaluation section determines that the destination of the communication data is the projector, the control section causes the projection section to project an image based on image data included in the communication data. In a case where the evaluation section determines that the destination of the communication data received from the first apparatus is not the projector, the control section causes the communication section to transmit the communication data to the second apparatus.

Abstract: A projector includes a light source, an image forming section that forms a first image and a second image different from the first image based on image data, a first projection section that projects image light representing the first image formed by the image forming section, and a second projection section that projects image light representing the second image formed by the image forming section. The first projection section projects the image light representing the first image in a first projection direction, and the second projection section projects the image light representing the second image in a second projection direction different from the first projection direction.

Abstract: A projection system includes a first projector that projects an image based on image data in a first projection direction, a second projector that projects an image based on image data in a second projection direction, and a storage section that stores the image data representing the image projected by the first projector. The projection system can switch the image projected by the second projector to the image based on the image data stored in the storage section.

Abstract: A display apparatus includes a display unit configured to display an image, a wireless tag, a wireless communication unit configured to wirelessly communicate with an external terminal apparatus, and a control unit configured to switch an operation state of the display apparatus to at least a normal operation state and a power saving state. When detecting that the wireless tag communicates with the terminal apparatus in the power saving state, the control unit shifts the operation state to the normal operation state. The wireless communication unit returns from the power saving state to the normal operation state and establishes a wireless communication with the terminal apparatus.

Abstract: A display apparatus includes a display section, a wireless communication section configured to perform wireless connection to an external apparatus using first connection information that can be acquired from an external radio tag, and a storing section configured to store second connection information different from the first connection information. The wireless communication section is capable of performing the wireless connection to the external apparatus or another external apparatus using the second connection information. The second connection information is changeable.

Abstract: A display device includes: a first wireless communication unit which performs wireless communication in a first format with an external device; a storage unit which stores connection information used in the wireless communication in the first format; a change unit which changes the connection information stored in the storage unit; and a display unit which displays an image received via the first wireless communication unit from the external device. A first information processing device includes: a wireless reader/writer which performs wireless communication in a second format in order to read information from or write information in a wireless tag; an acquisition unit which acquires the changed connection information; and a writing unit which outputs, to the wireless reader/writer, a signal for writing the connection information acquired by the acquisition unit into a first wireless tag.

Abstract: An integrated circuit system includes: a first integrated circuit that is connected with a first data bus having first bus width and requires first time to perform data transmission and reception once; a second integrated circuit that is connected with a second data bus having second bus width larger than the first bus width in bit width and requires second time longer than the first time to perform data transmission and reception once; and a relay circuit that is connected with the first data bus and the second data bus and transmits and receives data to and from the first integrated circuit and the second integrated circuit respectively via the buses.

Abstract: An integrated circuit system includes: a first integrated circuit that is connected with a first data bus having first bus width and requires first time to perform data transmission and reception once; a second integrated circuit that is connected with a second data bus having second bus width larger than the first bus width in bit width and requires second time longer than the first time to perform data transmission and reception once; and a relay circuit that is connected with the first data bus and the second data bus and transmits and receives data to and from the first integrated circuit and the second integrated circuit respectively via the buses.

Abstract: A duplexed network system is formed with a plurality of programmable controllers and two different networks. Each of the programmable controllers includes a CPU unit, a primary communication unit connected to one of these networks (the first network) and a secondary communication unit connected to the other of the networks (the second network). The primary communication unit serves to compile participation status of nodes connected to the first network. The CPU unit gives priority to the primary communication unit when a request to transmit a communication command is issued to both the primary and secondary communication units.

Abstract: A programmable controller has a first (executing) CPU unit and a second (standby) CPU unit for a duplexed operation. Each CPU unit stores CPU version indicating its functionality and function version indicative of the functionality of the user program stored in itself. Before the duplexed operation is started, the first CPU unit acquires the unit version of the second CPU unit, compares it with the function version stored in itself and judges from this comparison whether a duplexed operation is possible or not. Only if it is judged that the duplexed operation is possible, the first CPU unit copies the user program stored in itself to the second CPU unit together with the function version and the duplexed operation is started.