Abstract: A relay apparatus is provided to achieve high-speed control, while suppressing costs for communication with a plurality of devices, by notifying additional information of the devices to a master apparatus and increasing the efficiency of transmission/reception of signals among the master apparatus and the devices. The relay apparatus communicates with a plurality of devices through a single device communication port. The relay apparatus receives additional information from each of the plurality of devices; and transmits/receives signals in units of groups to which each of the plurality of devices belongs.

Abstract: An information processing device that executes an arithmetic process includes a first processing circuit and a second processing circuit. The first processing circuit executes the arithmetic process N times consecutively. The second processing circuit executes the arithmetic process N times consecutively. N is an integer of 2 or more. The first processing circuit and the second processing circuit continue to operate according to a match between at least one result among the results of the N arithmetic processes executed by the first processing circuit and at least one result among the results of the N arithmetic processes executed by the second processing circuit. As a result, it is possible to suppress an increase in cost required for hardware and to suppress a temporary stop due to a temporary failure.

Abstract: In the present invention a control device and a safety device establish a connection in accordance with a result of a comparison of connection setting information stored in the control device and setting identification information stored in the safety device. A support device is provided with a processor for executing a support program for assisting in setting the control device. A support program includes a first command for acquiring the setting identification information from the safety device and a second command for setting, in the connection setting information corresponding to the safety device, the setting identification information acquired in response to execution of the first command. Thus, the required identification information can easily be set even when a plurality of safety devices are connected to the same network.

Abstract: A relay apparatus is provided to achieve high-speed control, while suppressing costs for communication with a plurality of devices, by notifying additional information of the devices to a master apparatus and increasing the efficiency of transmission/reception of signals among the master apparatus and the devices. The relay apparatus communicates with a plurality of devices through a single device communication port, The relay apparatus receives additional information from each of the plurality of devices; and transmits/receives signals in units of groups to which each of the plurality of devices belongs.

Abstract: In a projector or an optical receiver, a master device produces pieces of definition information that determines timings of detection processes in the device including its own device and transmits the pieces of definition information to the slave device. The master device simultaneously transmits commands to require operations of internal timers to be synchronized with each other to the other slave devices in response to elapse of a time corresponding to a period in which a circulating period of the detection processes of the sensors proceeds by a predetermined cycle. Each of the slave devices corrects the timer in response to the command, and determines a timing at which a detection process should be performed with reference to a time point for correction on the basis of the definition information matched with its own device to execute the detection process.

Abstract: In a projector or an optical receiver, a master device produces pieces of definition information that determines timings of detection processes in the device including its own device and transmits the pieces of definition information to the slave device. The master device simultaneously transmits commands to require operations of internal timers to be synchronized with each other to the other slave devices in response to elapse of a time corresponding to a period in which a circulating period of the detection processes of the sensors proceeds by a predetermined cycle. Each of the slave devices corrects the timer in response to the command, and determines a timing at which a detection process should be performed with reference to a time point for correction on the basis of the definition information matched with its own device to execute the detection process.

Abstract: According to one embodiment of the invention, there is provided a lead-free solder including an alloy rolled into a shape of sheet. The alloy includes: tin; from 10 wt % to less than 25 wt % of silver; and from 3 wt % to 5 wt % of copper. The alloy is free from lead.

Abstract: According to one embodiment of the invention, there is provided a lead-free solder including an alloy rolled into a shape of sheet. The alloy includes: tin; from 10 wt % to less than 25 wt % of silver; and from 3 wt % to 5 wt % of copper. The alloy is free from lead.

Abstract: According to one embodiment of the invention, there is provided a lead-free solder including an alloy rolled into a shape of sheet. The alloy includes: tin; from 10 wt % to less than 25 wt % of silver; and from 3 wt % to 5 wt % of copper. The alloy is free from lead.

Abstract: An electronic presentation system of the present invention comprises: communication means; a first image and voice display means connected to the communication means in which display control and communication control through the communication means are controlled by remote control means; and a personal computer provided with a second image and voice display means connected to the communication means and different from the first image and voice display means placed in a position different from the position placing the first image and voice display means, and input means; wherein the remote control means selects the display contents displayed on the second image and voice display means to display the selected display contents on the first image and voice display means at the same time.

Abstract: A block copolymer comprising a polymer block [A] and a polymer block [B]. The polymer block [A] contains mainly a repeating unit having an alicyclic structure, and the polymer block [B] contains the repeating unit having an alicyclic structure and a repeating unit derived from a diene based monomer and/or a vinyl based monomer. In any block, the carbon-carbon unsaturated bonds are hydrogenated. The block copolymer is molded into optical disks, optical waveguides, films, sheets, containers, and optical lenses.

Abstract: A block copolymer comprising a polymer block [A] and a polymer block [B]. The polymer block [A] contains mainly a repeating unit having an alicyclic structure, and the polymer block [B] contains the repeating unit having an alicyclic structure and a repeating unit derived from a diene based monomer and/or a vinyl based monomer. In any block, the carbon-carbon unsaturated bonds are hydrogenated. The block copolymer is molded into optical disks, optical waveguides, films, sheets, containers, and optical lenses.

Abstract: An electronic presentation system of the present invention comprises: communication means; a first image and voice display means connected to the communication means in which display control and communication control through the communication means are controlled by remote control means; and a personal computer provided with a second image and voice display means connected to the communication means and different from the first image and voice display means placed in a position different from the position placing the first image and voice display means, and input means; wherein the remote control means selects the display contents displayed on the second image and voice display means to display the selected display contents on the first image and voice display means at the same time.