Abstract: A control device for a human-powered vehicle includes an electronic controller. The human-powered vehicle includes a motor that applies a propulsion force to the human-powered vehicle and a transmission that shifts a transmission ratio of the human-powered vehicle between a plurality of shift stages. The electronic controller is configured to control the motor. The electronic controller is configured to decrease an upper limit value of an output of the motor in an up-shift operation. The electronic controller is configured to decrease the upper limit value in a down-shift operation. The electronic controller is configured to control the motor so that the upper limit value in the up-shift operation performed between two predetermined ones of the shift stages that differ in the transmission ratio by one stage differs from the upper limit value in the down-shift operation performed between the two predetermined ones of the shift stages.

Abstract: A higher-level device in an optical access system including: the higher-level device; a transition source subscriber line terminal station device before device replacement, the transition source subscriber line terminal station device communicating with the higher-level device and one or more subscriber line terminal devices; and a transition destination subscriber line terminal station device that is a device replacement destination, the higher-level device including a transfer control unit that transfers, in a case where data transmitted from the transition destination subscriber line terminal station device is received at a time of device replacement, to the transition destination subscriber line terminal station device, data addressed to one of the subscriber line terminal devices that is a transmission source of the data transmitted from the transition destination subscriber line terminal station device.

Abstract: A transition destination subscriber line terminal station device in an optical access system including: a transition source subscriber line terminal station device before device replacement; and the transition destination subscriber line terminal station device that is a device replacement destination, the transition destination subscriber line terminal station device including: a higher-level device side transition unit including a higher-level port for connecting to the higher-level device and a first transition port that transfers data transferred from the higher-level device to the transition source subscriber line terminal station device; a subscriber side transfer unit including subscriber side connection ports for connecting to one or more subscriber line terminal devices, and a second transition port that transfers data transmitted from the subscriber line terminal devices to the transition source subscriber line terminal station device; a transfer table setting unit that changes a setting of a transf

Abstract: A motor apparatus is provided. The motor apparatus includes a motor having a rotor and a stator, an inverter used to covert an input voltage into a three-phase alternating current (AC) voltage and provide the three-phase AC voltage to the motor, an inverter controller used to control the inverter, and a rotation angle sensor. The rotation angle sensor is fixed to the motor and is used to detect a rotation angle of the motor. The inverter controller includes a calculator. The calculator calculates an offset angle of an installation position of the rotation angle sensor according to a difference between a measured value and a theoretical value of a voltage phase of the motor.

Abstract: A communication apparatus includes a plurality of devices, each of the plurality of devices includes a monitoring unit configured to monitor at least one other device to detect an error that has occurred in the other device, and each of the plurality of devices is monitored by at least one other device.

Abstract: A transition assistance device that assists device replacement in an optical access system including a transition source subscriber line terminal station device and a transition destination subscriber line terminal station device, the transition assistance device including: a first member, and a second member that is movable, in which the first member includes a first port for connecting to the transition source subscriber line terminal station device, and a second port for connecting to the transition destination subscriber line terminal station device, the second member includes a third port for connecting to one or more subscriber line terminal devices connected to the transition source subscriber line terminal station device, and at a start of the device replacement, the first port and the third port are connected to each other via a connection line; a cutting unit that cuts the connection line connecting the first port and the third port to each other after the transition assistance device is connected t

Abstract: An image judgment apparatus stores, in a memory, a judgment model configured to learn about each of the plurality of judgment items based on first data corresponding to an image as a reference with which to judge good and second data corresponding to an image as a reference with which to judge not good, sets a plurality of magnifications for each of the plurality of judgment items, segments part of the image, generates image data at the plurality of magnifications from the segmented image, inputs the generated image data corresponding to each of the plurality of magnifications to the judgment model, and judges, based on output results from the judgment model, whether the quality of the image is good or not good with respect to each of the plurality of judgment items.

Abstract: A diaphragm pump includes a piezoelectric member, a diaphragm having surfaces, and a supporting member. The piezoelectric member deforms when a voltage is applied. The diaphragm deforms in response to deformation of the piezoelectric member. The supporting member supports the diaphragm. A space is formed between the diaphragm and the supporting member. Fluid is made to flow by changing a volume of the space by deforming the diaphragm. The surfaces of the diaphragm face the space and include a first surface that deforms in response to deformation of the piezoelectric member and include a second surface not connected to the first surface. The diaphragm bonds to the supporting member with the second surface.

Abstract: An inverter device is provided. The inverter device converts power from a power source and drives a motor. The inverter device includes an inverter circuit having a switch, a driver circuit that switches the switch on and off, and a controller that controls the driver circuit. The controller has a speed calculator used to calculate a minimum speed of the motor based on a power source voltage. After the controller performs fail-safe control, when a speed of the motor is less than the minimum speed, the fail-safe control is ended.

Abstract: A communication apparatus includes a plurality of devices, each of the devices includes a monitoring unit that monitors at least one other device and detects an error that has occurred in the other device, and if an error is detected by the monitoring unit, the device performs a device reset indicating a reset of the operating state of the other device by the monitoring unit or a power source reset indicating a reset of the supply of electric power to the communication apparatus by a chain-of-command unit included in the device.

Abstract: A communication apparatus includes a communication unit, a power supply unit, a temperature monitoring unit, and a control unit. The communication unit communicates with an additional apparatus. The power supply unit supplies power to components mounted in the communication apparatus. The temperature monitoring unit monitors a temperature in the communication apparatus to detect presence or absence of a temperature abnormality. In a case where the temperature monitoring unit detects the temperature abnormality, the control unit performs power supply stop processing of stopping the power supply from the power supply unit to at least some of the components. Furthermore, the control unit stops or decreases communication of the communication unit in a case where the temperature monitoring unit detects the temperature abnormality.

Abstract: A communication apparatus includes a plurality of devices, each of the plurality of devices includes a monitoring unit configured to monitor at least one other device to detect an error that has occurred in the other device, and each of the plurality of devices is monitored by at least one other device.

Abstract: The disclosure relates to an inverter device, including: an inverter circuit including a plurality of switching elements and a capacitor; an active discharge circuit including a first discharge resistor and a discharge switch connected in series, and connected between a positive electrode and a negative electrode of the capacitor; and a control circuit including a controller respectively connected to the switching elements and the discharge switch. The controller controls the switching elements and the discharge switch. The controller turns on the discharge switch to discharge the capacitor when the controller receives a discharge command from outside the inverter device and an electric motor is rotating.

Abstract: An inverter device is provided. The inverter device converts power from a power source and drives a motor. The inverter device includes an inverter circuit having a switch, a driver circuit that switches the switch on and off, and a controller that controls the driver circuit. The controller has a speed calculator used to calculate a minimum speed of the motor based on a power source voltage. After the controller performs fail-safe control, when a speed of the motor is less than the minimum speed, the fail-safe control is ended.

Abstract: A motor apparatus is provided. The motor apparatus includes a motor having a rotor and a stator, an inverter used to covert an input voltage into a three-phase alternating current (AC) voltage and provide the three-phase AC voltage to the motor, an inverter controller used to control the inverter, and a rotation angle sensor. The rotation angle sensor is fixed to the motor and is used to detect a rotation angle of the motor. The inverter controller includes a calculator. The calculator calculates an offset angle of an installation position of the rotation angle sensor according to a difference between a measured value and a theoretical value of a voltage phase of the motor.

Abstract: An image judgment apparatus stores, in a memory, a judgment model configured to learn about each of the plurality of judgment items based on first data corresponding to an image as a reference with which to judge good and second data corresponding to an image as a reference with which to judge not good, sets a plurality of magnifications for each of the plurality of judgment items, segments part of the image, generates image data at the plurality of magnifications from the segmented image, inputs the generated image data corresponding to each of the plurality of magnifications to the judgment model, and judges, based on output results from the judgment model, whether the quality of the image is good or not good with respect to each of the plurality of judgment items.

Abstract: A cooling system includes a coolant circulation flow path, a motor thermometer, an inverter thermometer, and a controller connected to the motor thermometer and the inverter thermometer. An oil cooler that cools oil supplied to the motor, the inverter that supplies electric power to the motor, a radiator that cools the coolant, and a coolant pump that pumps the coolant are arranged in series in a channel of the coolant circulation flow path. The controller executes a first step of calculating a drive output of the coolant pump based on the temperature of the motor, a second step of calculating a drive output of the coolant pump based on the temperature of the inverter, and a third step of selecting one of a calculation result of the first and second step having a larger drive output to drive the coolant pump.

Abstract: A process for producing a liquid ejection head includes steps of providing an element substrate having an element for generating energy to be utilized for ejecting a liquid, a wiring substrate electrically connected to the element substrate through a lead wire, and a support member having a first support portion and a second support portion; applying a sealant to the second support portion; placing the element substrate on the first support portion and bringing the lead wire into contact with the sealant applied to the second support portion; and curing the sealant.

Abstract: A recording head including: a supporting member including a depression and a peripheral portion in the periphery of the depression; a recording element substrate having an ejection port surface provided with an ejection port opening therein and arranged in the depression; and a tape adhered to the ejection port surface, wherein when viewing the recording head from above in a direction vertical to the ejection port surface, the recording element substrate and the peripheral portion are at least partly apart from each other via a groove, which is part of the depression, and the tape includes a portion located on the peripheral portion and a portion located on the groove at one lateral end thereof.

Abstract: A recording head including: a supporting member including a depression and a peripheral portion in the periphery of the depression; a recording element substrate having an ejection port surface provided with an ejection port opening therein and arranged in the depression; and a tape adhered to the ejection port surface, wherein when viewing the recording head from above in a direction vertical to the ejection port surface, the recording element substrate and the peripheral portion are at least partly apart from each other via a groove, which is part of the depression, and the tape includes a portion located on the peripheral portion and a portion located on the groove at one lateral end thereof.