Abstract: A display control method includes: receiving registration of a target image to be displayed on a display of a container, by a processor; upon acquisition of identification information of a container or a display of the container, transmitting the registered image to a destination associated with the identification information, by the processor; and displaying the image on the display of the container, by the processor.

Abstract: An optical wavelength multiplexing device includes: a wavelength selective switch including a first input port for receiving an optical signal, a second input port for receiving a monitoring signal, output ports for outputting the optical signal or the monitoring signal, and an adjustment unit that adjusts a level of the optical signal or the monitoring signal at one of the output ports; a measurement unit that measures an output level of the monitoring signal at one of the output ports; and a control unit that specifies an unused output port of the output ports as a monitoring target port; sets a specific adjustment amount to the monitoring target port; outputs the monitoring signal to the monitoring target port; and determines whether the monitoring target port has an abnormality, based on the output level at the monitoring target port and an estimated output level at the monitoring target port.

Abstract: An optical wavelength multiplexing device includes: a wavelength selective switch including a first input port for receiving an optical signal, a second input port for receiving a monitoring signal, output ports for outputting the optical signal or the monitoring signal, and an adjustment unit that adjusts a level of the optical signal or the monitoring signal at one of the output ports; a measurement unit that measures an output level of the monitoring signal at one of the output ports; and a control unit that specifies an unused output port of the output ports as a monitoring target port; sets a specific adjustment amount to the monitoring target port; outputs the monitoring signal to the monitoring target port; and determines whether the monitoring target port has an abnormality, based on the output level at the monitoring target port and an estimated output level at the monitoring target port.

Abstract: An electronic device includes a housing having an open portion at a part of a surface thereof, a door portion having at the open portion, a first face and a second face to be selectively exposed by rotation thereof, and a cradle having a connector and provided on the first face. The cradle is rotatable between a first attitude and a second attitude around a rotation axis line perpendicularly intersecting the first face.

Abstract: An electronic device includes a housing having an open portion at a part of a surface thereof, a door portion having at the open portion, a first face and a second face to be selectively exposed by rotation thereof, and a cradle having a connector and provided on the first face. The cradle is rotatable between a first attitude and a second attitude around a rotation axis line perpendicularly intersecting the first face.

Abstract: An electric device includes: a circuit board arranged in cooling medium in a housing and having an electric element and an external coupling electrode, wherein the electric element is sealed in and mounted in a substrate, and the electric element is electrically coupled with the external coupling electrode; an external coupling terminal electrically coupled with the external coupling electrode; and a separation member for separating the external coupling terminal and a connection portion between the external coupling electrode and the external coupling terminal away from the cooling medium.

Abstract: An output circuit includes a bias circuit that operates when a power supply voltage equal to or larger than a predetermined voltage is applied, a differential amplifier circuit that outputs signals according to input differential signals upon receiving a bias current or bias voltage generated when the bias circuit is operated, an output stage circuit that receives differential signals according to an output from the differential amplifier circuit and outputs output signals according to the differential signals, the output stage circuit having fewer number of stages of elements connected in series than the bias circuit, and a pull-down circuit that forcibly sets a level of one of the differential signals received by the output stage circuit to a ground voltage to fix the level of the output signals output from the output stage circuit when the bias current or the bias voltage generated by the bias circuit is not supplied.

Abstract: A load drive device for driving an inductive load by PWM controlling a switching element includes synchronization control unit, a synchronization signal input terminal, and a synchronization signal output terminal. The synchronization control unit outputs the PWM signal to the switching element. The synchronization control unit receives a synchronization signal through the input terminal from an exterior. The synchronization control unit outputs the synchronization signal through the output terminal to an exterior. When the synchronization control unit does not receive the synchronization signal, the synchronization control unit outputs the synchronization signal such that a first switching period of the PWM signal is prevented from overlapping with a second switching period of a PWM signal of an external device. When the synchronization control unit receives the synchronization signal, the synchronization control unit generates the PWM signal based on the synchronization signal.

Abstract: An electric device includes: a circuit board arranged in cooling medium in a housing and having an electric element and an external coupling electrode, wherein the electric element is sealed in and mounted in a substrate, and the electric element is electrically coupled with the external coupling electrode; an external coupling terminal electrically coupled with the external coupling electrode; and a separation member for separating the external coupling terminal and a connection portion between the external coupling electrode and the external coupling terminal away from the cooling medium.

Abstract: A method to produce an optical module, in particular, a module to transmit an analog data to enhance a yield thereof is disclosed. The method comprises (a) taking an I-L characteristic and its slope efficiency, (b) taking a gradient of a linear approximation between the slope efficiency and a current applied to an LD, and (c) taking an optimum current for the CSO characteristic as varying the current. Steps (a) to (c) give a correlation between the gradient of the linear approximation and the optimum current and are performed in advance to the practical production.

Abstract: The invention is to provide a failover method for improving overall reliability of a system including a large number of servers. Priorities set based on operating statuses of respective servers and shared devices capable of communicating with the respective servers in a failover system are stored in a storage portion while the priorities are associated with the respective servers, so that a failure processing portion of a management server retrieves a server based on the priorities and designates the retrieved server as a spare server when a failure occurs in one of the servers.

Abstract: A rotor position detecting circuit includes a first position detecting circuit having a low-pass filter that shapes up phase voltage induced in a phase coil and a first comparator that compares the output voltage of the low-pass filter with a threshold level to form a first rotor position signal, and a second position detecting circuit having a second comparator that compares the phase voltage with a threshold voltage and a control unit that digitally processes the output voltage of the second comparator to form a second rotor position signal. The control unit corrects the first rotor position signal by the second rotor position signal to provide a final rotor position signal when the rotation speed of the brushless DC motor is in a measurable range.