Abstract: An image display system 20 includes a projector PR1, a computer PC1 and a USB memory U1 which can be connected in an ad-hoc mode by using a wireless LAN. When a user connects the USB memory U1 to a USB interface 75 of the projector PR1, the projector PR1 writes network setup information in a setup information storage area 144 of the USB memory U1. Then, when the user removes the USB memory U1 from the USB interface 75 and connects it to a USB interface 125 of the computer PC1, the computer PC1 performs network setup by referring to the network setup information and establishes connection to start projection by an automatic start program.

Abstract: An image transfer method for transferring image data to a plurality of projectors from an image supply unit, wherein the image supply unit generates a transmission destination information list showing a transmission destination of the image data and transmits the image data and the transmission destination information list to a transmission destination projector of the image data, the transmission destination projector determined based on the transmission destination information list, and the projector receives the image data and the transmission destination information list from the image supply unit or another projector and transfers the image data to the plurality of projectors by repeating the process for transmitting the image data to one projector which has not received the image data, the one projector determined based on the transmission destination information list.

Abstract: A method includes sending image related working status information representing image-related working status of a projector that projects images, to a client over a network in response to a request to provide the image-related working status of the projector. The image-related working status is related to display characteristic of the projected image. The method includes controlling the image-related working status of the projector based on the control information received from the client over the network in response to the sent image-related working status information. The image-related working status information is sent to the client with screen information from which the client can display a user interface that includes the image-related working status information.

Abstract: An image display system 20 includes a projector PR1, a computer PC1 and a USB memory U1 which can be connected in an ad-hoc mode by using a wireless LAN. When a user connects the USB memory U1 to a USB interface 75 of the projector PR1, the projector PR1 writes network setup information in a setup information storage area 144 of the USB memory U1. Then, when the user removes the USB memory U1 from the USB interface 75 and connects it to a USB interface 125 of the computer PC1, the computer PC1 performs network setup by referring to the network setup information and establishes connection to start projection by an automatic start program.

Abstract: A method includes sending image related working status information representing image-related working status of a projector that projects images, to a client over a network in response to a request to provide the image-related working status of the projector. The image-related working status is related to display characteristic of the projected image. The method includes controlling the image-related working status of the projector based on the control information received from the client over the network in response to the sent image-related working status information. The image-related working status information is sent to the client with screen information from which the client can display a user interface that includes the image-related working status information.

Abstract: In response to a requirement of transferring a file from a personal computer PC to a projector 10 that is output by dragging and dropping a corresponding file icon onto a projector icon, a CPU 50 requires setting of a password. The CPU 50 maps the preset password to a file and transfers the file with the password to an external storage device of the projector 10. The projector 10 requires input of a password, which is expected to be assigned to the file, and allows reproduction of the file when the input password is coincident with the preset password.

Abstract: An image display system includes: a plurality of image supply devices each having an image display section, and an image transmission section adapted to generate a supply image and to externally transmit the supply image; and an image display device capable of dividing a common screen area into one or more screen areas, and of displaying the supply image supplied from each of the image supply devices in the one or more screen areas, wherein each of the image supply devices displays a common screen area operating image to operate a display state of the common screen area in the image display section, and supplies a display image of the image display section to the image display device as the supply image, and the image display device changes the display state of the common screen area in accordance with an operation in each of the image supply devices.

Abstract: An image/sound supply device repeatedly supplying sound data and image data in such a manner that intervals between transmission start points of the sound data become constant, includes: a block data extraction section extracting first block data including data with a difference between two frame images with a time lag; a block data dividing section dividing the first block data into second block data with a data amount equal to or smaller than a second data amount when a data amount of the first block data is larger than the second data amount; a sound data output section outputting the sound data with a first data amount; and a block data output section outputting the first block data subsequently to the sound data when the first block data is not divided, and outputting the second block data subsequently to the sound data when the first block data is divided.

Abstract: An image/sound output method in an image/sound supply apparatus connected to an image/sound output apparatus includes: receiving residual-quantity data indicating the residual quantity of a data buffer memory provided in the image/sound output apparatus from the image/sound output apparatus; storing a lower and upper limit value of the proportion of sound data to be transmitted to the residual quantity of the data buffer memory; calculating the proportion of the sound data to be transmitted to the residual quantity of the data buffer memory in the image/sound output apparatus and comparing the calculated proportion and a lower or upper limit value and selects a sampling frequency for the sound data in accordance with the comparison result; converting the sound data to be transmitted with the sampling frequency selected by the frequency selecting section; and transmitting the converted sound data to the image/sound output apparatus.

Abstract: In response to a requirement of transferring a file from a personal computer PC to a projector 10 that is output by dragging and dropping a corresponding file icon onto a projector icon, a CPU 50 requires setting of a password. The CPU 50 maps the preset password to a file and transfers the file with the password to an external storage device of the projector 10. The projector 10 requires input of a password, which is expected to be assigned to the file, and allows reproduction of the file when the input password is coincident with the preset password.

Abstract: A transmission device includes: a reproduction audio producing unit which produces reproduction audio; a continuous audio producing unit which produces continuous audio; a synthesized audio producing unit which synthesizes the reproduction audio and the continuous audio to produce synthesized audio; a capture audio data producing unit which captures the synthesized audio to produce capture audio data; and a transmitting unit which transmits the capture audio data to a reproduction device.

Abstract: An image display system 20 includes a projector PR1, a computer PC1 and a USB memory U1 which can be connected in an ad-hoc mode by using a wireless LAN. When a user connects the USB memory U1 to a USB interface 75 of the projector PR1, the projector PR1 writes network setup information in a setup information storage area 144 of the USB memory U1. Then, when the user removes the USB memory U1 from the USB interface 75 and connects it to a USB interface 125 of the computer PC1, the computer PC1 performs network setup by referring to the network setup information and establishes connection to start projection by an automatic start program.

Abstract: An image transmission apparatus includes a display device, a display image data generator, a storage device, a storage controller, a transmitter, and a display controller. The image transmission apparatus is connectable to a plurality of image projection apparatuses and is configured to individually generate, store, and transmit display image data for display on each image transmission apparatus connected to the image transmission apparatus according to an overall layout display for the combination of potentially connected image transmission apparatuses.

Abstract: An image transfer apparatus includes a display configured to display multiple sets of content. A display image data generator is configured to generate display image data for each of the content, at least part of the content being displayed on the display. A storage controller is configured to relate connected image projection apparatus to the generated display image data and store the display image data related to the image projection apparatus in a storage device. A transfer unit is configured to transfer the display image data to the corresponding image projection apparatus.

Abstract: A system consisting of a plurality of terminals storing image data and an image displaying device which are connected with each other through a network capable of two-way communication has the disadvantage of decreasing in throughput on account of slow image data transfer over the network. The image displaying device performs two-way communications with each of the terminals by a communication means at the display device side. Also, the image displaying device acquires image data from a relevant terminal while instructing other terminals to suspend transmission by the image data acquisition controlling means, thereby suspending transmission of image data. The image displaying device displays images by the image displaying means based on the thus acquired image data.

Abstract: A projector that projects images includes a projection display module by which the projector projects the images, a network interface by which the projector can communicate with a network, and a web server module coupled to the network interface and to the projection display module. The web server module, in response to a request to provide a working status of the projection display module received through the network interface from a client over the network, sends working status information representing the working status through the network interface to the client over the network. The web server module also, in response to control information received through the network interface from the client over the network in response to the sent working status information, controls the working status by sending a control signal to the projection display module based on the control information.

Abstract: A system consisting of a plurality of terminals storing image data and an image displaying device which are connected with each other through a network capable of two-way communication has the disadvantage of decreasing in throughput on account of slow image data transfer over the network. The image displaying device performs two-way communications with each of the terminals by a communication means at the display device side. Also, the image displaying device acquires image data from a relevant terminal while instructing other terminals to suspend transmission by the image data acquisition controlling means, thereby suspending transmission of image data. The image displaying device displays images by the image displaying means based on the thus acquired image data.

Abstract: In response to a requirement of transferring a file from a personal computer PC to a projector 10 that is output by dragging and dropping a corresponding file icon onto a projector icon, a CPU 50 requires setting of a password. The CPU 50 maps the preset password to a file and transfers the file with the password to an external storage device of the projector 10. The projector 10 requires input of a password, which is expected to be assigned to the file, and allows reproduction of the file when the input password is coincident with the preset password.

Abstract: In response to a requirement of transferring a file from a personal computer PC to a projector 10 that is output by dragging and dropping a corresponding file icon onto a projector icon, a CPU 50 requires setting of a password. The CPU 50 maps the preset password to a file and transfers the file with the password to an external storage device of the projector 10. The projector 10 requires input of a password, which is expected to be assigned to the file, and allows reproduction of the file when the input password is coincident with the preset password.

Abstract: To automatically adjust the quality of a projection image commensurate with the performance in-time deterioration and aging of projector component parts in an image projection system, each projector detects an integrated service time of its own light-source lamp and a service time and temperature of a liquid-crystal panel, and sends a detection result thereof to a control unit in compliance with a request from the control unit. These parameter values are parameter values having an effect upon the quality of a projection image and varying with time. The control unit copes with the projectors depending upon the detection result received from the projectors, to set predetermined control data for use in image-quality adjustment and send the control data respectively to the projectors. Each projector controls the driving to its light-source lamp and liquid-crystal panel, depending upon the control data received from the control unit.