Abstract: The wireless LAN device 10 includes a packet transmission controller 102 having the function of transmitting a DHCPDISCOVER packet from a LAN switch 130 to wired devices and the function of causing an RF device to transmit a Probe Request packet to other wireless LAN devices through an antenna 150; a first operation controller 104 that can set the wireless LAN device 10 in the operating mode where the wireless LAN device 10 can operate as an access point, when the wireless LAN device 10 receives DCHPOFFER packet; and a second operation controller 106 that can set the wireless LAN device 10 in the operating mode where the wireless LAN device 10 can operate as a client, when the wireless LAN device 10 receives a Probe Response packet.

Abstract: The Ethernet converter includes a LAN switch, an RF device and an antenna, a wired device monitoring module, and an RF device controller. The RF device and the antenna carry out communication with wireless network devices. The wired device monitoring module monitors the operation state of the wired network devices via the LAN switch. The RF device controller controls the operation of the RF device on the basis of the operating state of the wired network devices. If the result of monitoring is that the wired network devices are not operating, the RF device controller stops the operation of the RF device so that power consumption by the RF device is less than when the wired network devices are operating.

Abstract: The wireless LAN device 10 includes a packet transmission controller 102 having the function of transmitting a DHCPDISCOVER packet from a LAN switch 130 to wired devices and the function of causing an RF device to transmit a Probe Request packet to other wireless LAN devices through an antenna 150; a first operation controller 104 that can set the wireless LAN device 10 in the operating mode where the wireless LAN device 10 can operate as an access point, when the wireless LAN device 10 receives DCHPOFFER packet; and a second operation controller 106 that can set the wireless LAN device 10 in the operating mode where the wireless LAN device 10 can operate as a client, when the wireless LAN device 10 receives a Probe Response packet.

Abstract: The wireless LAN device 10 includes a packet transmission controller 102 having the function of transmitting a DHCPDISCOVER packet from a LAN switch 130 to wired devices and the function of causing an RF device to transmit a Probe Request packet to other wireless LAN devices through an antenna 150; a first operation controller 104 that can set the wireless LAN device 10 in the operating mode where the wireless LAN device 10 can operate as an access point, when the wireless LAN device 10 receives DCHPOFFER packet; and a second operation controller 106 that can set the wireless LAN device 10 in the operating mode where the wireless LAN device 10 can operate as a client, when the wireless LAN device 10 receives a Probe Response packet.

Abstract: An image transfer device, as well as a method and computer program product, obtains an image file that includes first image data and identification information for identifying an image generation device used to generate the first image data, and obtains the identification information from the obtained image file. The image transfer device determines a display resolution of a monitor included in the image generation device, according to the obtained identification information, converts the first image data to second image data having a resolution consistent with the determined display resolution, and records the second image data into a storage device. The image transfer device transfers the obtained image file to a first device connected to the network.

Abstract: There is provided a peripheral device capable of being connected to a host device through a connection cable including a power line. This peripheral device comprises: a first power terminal capable of being connected to the power line of the connection cable; a power circuit connected to a second power terminal different from the first power terminal and for supplying power to an internal circuit; a start signal generating circuit for generating a start signal causing the power circuit to start supplying power to the internal circuit, when power has been supplied to the first power terminal through the connection cable; and a feedback circuit for allowing the start signal to remain activated when power has been supplied to the internal circuit from the power circuit.

Abstract: A communication device includes a wireless LAN interface that can communicate with a wireless device other than the communication device, and a wired LAN interface having a plurality of ports, and relays a communication between an electronic device connected to each of the plurality of ports and the wireless device. When an electronic device is connected to a specific port set beforehand among the plurality of ports, the communication device obtains the MAC address of the electronic device, uses the obtained MAC address as the local MAC address, and communicates with the wireless device.

Abstract: The rotating speed of a cooling fan is controlled in accordance with the number of devices connected to ports of a packet transmitting/receiving unit and a connection speed with that device. When the number of ports establishing a link at a speed of 1 Gbps is zero, the voltage value of power output from a power source block to the cooling fan is 0 V and the cooling fan is deactivated. When the number of ports establishing a link at a speed of 1 Gbps is one or two, the voltage value is 8 V and the cooling fan rotates in a slow mode. Furthermore, when the number of ports establishing a link at a speed of 1 Gbps is three or four, the voltage value is 12 V and the cooling fan rotates in a fast mode.

Abstract: The present invention provides a monitoring system comprising a device server and a host computer, the monitoring system monitoring the operation state of at least one peripheral device. The device server includes: at least one peripheral device port; a power supply section for supplying power to the peripheral device; and a first control section for making control of starting and stopping supply of power. The host computer includes: a second control section for instructing the first control section to start or stop supplying power to a peripheral device, and accessing the peripheral device; and a display unit. The first control section reports online-status notification to the second control section when supply of power is started, and reports offline-status notification to the second control section when supply of power is stopped.

Abstract: A server machine according to the present invention includes: one or more ports each connectable to a separate peripheral device; at least one communication section connectable to a network in plural types of communications mode differentiated according to communications rate and each differing in power consumption required for communications; and a setting section for, based on at least the respective power consumptions in the communications modes and on the sum of the highest-speed data transmission rates of each peripheral device connected to the one or more ports, choosing one of the communications modes and setting the communication section into the chosen communications mode.

Abstract: A server machine, connectable to a peripheral device and to a client machine via a network, includes: a device interface for connecting with a peripheral device; a network interface for connecting with a network; and a device interface control section configured to relay data communications between the client machine and the peripheral device via the device interface and the network interface, and to execute a first process, if a first condition, including that predetermined first data has been received from the client machine is satisfied, of causing the peripheral device to transition into a first state in which the peripheral device is communicable with the server machine, and execute a second process, if a second condition, including that predetermined second data has been received is satisfied, of causing the peripheral device to transition into a second state in which its power consumption is lower than that in the first state.

Abstract: The access point 100 includes a network connection section (an RF device 60 and an antenna 70, and Ethernet controller 50, a LAN port 52, or a WAN port 53) for connecting to a network (a wireless LAN, a wired LAN, or a WAN); a USB port 42 for connecting a USB device; and a power supply controller 12 for controlling power supply to the USB device from the USB port 42 based on connection status between the network and the network connection section. The power supply controller 12 distributes power to the USB device on the condition that a communication link was established between the network and the network connection section. If all communication links between the network and the network connection section are disconnected, the power supply controller 12 suspends power supply to the USB device.

Abstract: The wireless LAN device 10 includes a packet transmission controller 102 having the function of transmitting a DHCPDISCOVER packet from a LAN switch 130 to wired devices and the function of causing an RF device to transmit a Probe Request packet to other wireless LAN devices through an antenna 150; a first operation controller 104 that can set the wireless LAN device 10 in the operating mode where the wireless LAN device 10 can operate as an access point, when the wireless LAN device 10 receives DCHPOFFER packet; and a second operation controller 106 that can set the wireless LAN device 10 in the operating mode where the wireless LAN device 10 can operate as a client, when the wireless LAN device 10 receives a Probe Response packet.

Abstract: The Ethernet converter 10 includes a LAN switch 130 as a wired communication unit for carrying out communication with wired network devices; an RF device 140 and an antenna 150 as a wireless communication unit for carrying out communication with wireless network devices; a wired device monitoring portion 102 for monitoring the operation state of the wired network devices via the LAN switch 130; and an RF device controller 106 for controlling the operation of the RF device 140 on the basis of the operating state of the wired network devices. If the result of monitoring by the wired device monitoring portion 102 is that the wired network devices are not operating, the RF device controller 106 stops the operation of the RF device 140 so that power consumption by the RF device 140 is less than when the wired network devices are operating.

Abstract: An auxiliary amalgam is contained in a light-emitting tube. The auxiliary amalgam has a base, a metal layer provided on the base, and a diffusion-inhibiting layer provided between the base and the metal layer.

Abstract: A metal halide lamp includes a fire-resistant and translucent hermetic vessel containing amounts of scandium halide and sodium halide sealed in the hermetic vessel satisfying the formula of 0.25<a/(a+b)<0.5, where reference character “a” denotes the mass of scandium halide and reference character “b” denotes the mass of sodium halide.

Abstract: A metal halide lamp comprises a discharge container including a discharge space and a pair of sealing sections. A discharge medium containing a metal halide and a rare gas and essentially free from mercury is sealed in the discharge container. A pair of electrodes are arranged to face each other within the discharge space, and the side edge portions on the side of the proximal end portion of these electrodes are held by the sealing sections. The amount of water contained in the metal halide, i.e., the light-emitting material, included in the metal halide lamp essentially free from mercury, i.e., Hg-less metal halide lamp, is controlled to 50 ppm or less.

Abstract: A bulb-shaped fluorescent lamp with an emission bulb having a bent tube and a lighting device having a circuit board and electronic parts mounted on the circuit board. The lighting device has a cover member with a cap and a holder for holding the emission bulb and the circuit board has a great part of its electronic parts disposed on the cap side. The lighting device has a fine tube that extends from the end of a portion of the bent tube toward the cap side within the cover member, and protrudes so that the surface temperature of a portion of said fine tube is kept in the range between 40–70°C. at the time of normal lighting and/or the fine tube extending from the end of the bent tube toward the cap side within the cover member protrudes from the end of said bent tube by 25–70 mm.

Abstract: An auxiliary amalgam is contained in a light-emitting tube. The auxiliary amalgam has a base, a metal layer provided on the base, and a diffusion-inhibiting layer provided between the base and the metal layer.

Abstract: A metal halide lamp comprises a discharge container including a discharge space and a pair of sealing sections. A discharge medium containing a metal halide and a rare gas and essentially free from mercury is sealed in the discharge container. A pair of electrodes are arranged to face each other within the discharge space, and the side edge portions on the side of the proximal end portion of these electrodes are held by the sealing sections. The amount of water contained in the metal halide, i.e., the light-emitting material, included in the metal halide lamp essentially free from mercury, i.e., Hg-less metal halide lamp, is controlled to 50 ppm or less.