Abstract: An image capturing apparatus, comprises an instructing unit capable of issuing an instruction for an image capture preparation operation and an instruction for an image capture operation, a metering unit configured to meter brightness of a subject, a calculating unit configured to calculate values of exposure parameters based on a metering result, an acquiring unit configured to acquire information related to an image capture lens; and a controlling unit configured to, when image capture is performed with light emitted by a light emitter, control the calculating unit so as to make different a calculation method for the values of the exposure parameters at the time of issuance of the instruction for the image capture preparation operation based on the information related to the image capture lens.

Abstract: Provided is a steering control unit for improving influence of fluctuations in an estimated electrical angle on steering feel. A steering control unit includes a microcomputer that performs sensorless control of the driving of a motor by using an estimated electrical angle estimated by calculation. The microcomputer calculates the estimated electrical angle from a value that is obtained by selectively accumulating a first additional angle or a second additional angle. The microcomputer adjusts a vibration component of fluctuations in the estimated electrical angle by varying the amount of change in the first additional angle and the second additional angle.

Abstract: An image pickup apparatus that is capable of automatically finding an irradiation angle of each external flash in photographing using a plurality of external flashes. An image pickup apparatus controls external flashes that are communicably connected to one another and have light emitting units of which irradiation angles are variable. A photometry device obtains a photometry value. A memory device stores a set of instructions. At least one processor that executes the set of instructions to: obtain photometry values at times of emissions at each of different irradiation angles for each of the external flashes, generate an evaluation value at each of the different irradiation angles based on a photometry result obtained by the photometry device, and decide an irradiation angle for photographing of each of the external flashes based on the evaluation values generated.

Abstract: An image capturing apparatus, comprises an instructing unit capable of issuing an instruction for an image capture preparation operation and an instruction for an image capture operation, a metering unit configured to meter brightness of a subject, a calculating unit configured to calculate values of exposure parameters based on a metering result, an acquiring unit configured to acquire information related to an image capture lens; and a controlling unit configured to, when image capture is performed with light emitted by a light emitter, control the calculating unit so as to make different a calculation method for the values of the exposure parameters at the time of issuance of the instruction for the image capture preparation operation based on the information related to the image capture lens.

Abstract: According to a mode of the present invention, a method of manufacturing an electronic component includes: preparing a component main-body 110 including a first surface having an electrode-formed region having a plurality of bump electrodes 103, a second surface opposite to the first surface, and side peripheral surfaces connecting the first surface and the second surface; forming a mask section M1 on at least a peripheral portion of the first surface, the mask section surrounding the electrode-formed region, a height of the mask section being equal to or more than a height of the plurality of bump electrodes; bonding the mask section of the first surface to an adhesive layer 30 on a holder for holding a component; forming a protective film 105 on the component main-body, the protective film covering the second surface and the side peripheral surfaces; and removing the mask section M1 from the first surface.

Abstract: Provided is a steering control apparatus capable of executing driving assistance control even during rotation angle sensor-less control. When an induced voltage generated in a motor is equal to or lower than a threshold voltage at an early stage of execution of the rotation angle sensor-less control and when the driving assistance control is executed based on a command value from a higher-level control apparatus, a second pre-addition angle that is based on the command value is used as a second addition angle in place of a first pre-addition angle that is based on a steering torque. Therefore, even in a situation in which the steering torque is not detected due to, for example, execution of driving assistance, an estimated electrical angle of the motor is calculated by integrating the second addition angle. Then, driving of the motor is controlled based on the calculated estimated electrical angle.

Abstract: Provided is a steering control apparatus in which the response of steering assistance to driver's steering can be improved during execution of rotation angle sensor-less control. When the rotation angle sensor-less control is executed and when an induced voltage value is equal to or lower than a threshold voltage, driving of a motor is controlled based on a second addition angle. The second addition angle is calculated such that values obtained by multiplying a first pre-addition angle calculated based on a steering torque and a second pre-addition angle calculated based on an induced voltage derivative by respective predetermined use ratios that are based on the induced voltage value are added together. By using the second addition angle, a more appropriate estimated electrical angle is calculated in response to a driver's steering situation.

Abstract: A current command value calculation circuit includes an end abutment determination circuit and a guard processing circuit. When a decrease amount of an induced voltage value within a predetermined time is equal to or larger than a predetermined decrease amount in the state that a steering torque is equal to or larger than a predetermined torque, the end abutment determination circuit determines that the end abutment occurs. When a determination signal indicating that the end abutment state does not occur is input, the guard processing circuit outputs an elemental current command value directly as a q-axis current command value. When a determination signal indicating that the end abutment state occurs is input, the guard processing circuit outputs, as the q-axis current command value, a value obtained by limiting the elemental current command value so that its absolute value is equal to or lower than a predetermined limit current value.

Abstract: An image capturing apparatus comprises an image sensor, an image processor and a controller. The image sensor includes pixels each having a photoelectric conversion element and a signal storing unit. The controller transfers image signals to the image processor in a predetermined period if the image signals is a first image signal, and stores, if the image signals is a second image signal, the image signals output from the pixels in the signal storing unit, and transfers some of the image signals stored in the signal storing unit to the image processor during an interval in which the first image signals are transferred to the image processor. The image processor switches image processing in accordance with the type of the image signals transferred from the image sensor.

Abstract: An image pickup apparatus that is capable of automatically finding an irradiation angle of each external flash in photographing using a plurality of external flashes. An image pickup apparatus controls external flashes that are communicably connected to one another and have light emitting units of which irradiation angles are variable. A photometry device obtains a photometry value. A memory device stores a set of instructions. At least one processor that executes the set of instructions to: obtain photometry values at times of emissions at each of different irradiation angles for each of the external flashes, generate an evaluation value at each of the different irradiation angles based on a photometry result obtained by the photometry device, and decide an irradiation angle for photographing of each of the external flashes based on the evaluation values generated.

Abstract: A steering control unit includes a microcomputer that performs sensorless control of driving of a motor by using an estimated electrical angle estimated by calculation. The microcomputer has a first estimation calculation state and a second estimation calculation state. In the first estimation calculation state, the microcomputer calculates the estimated electrical angle from a value obtained by accumulating a first additional angle calculated by a first additional angle calculation circuit on the basis of a voltage induced in the motor. In the second estimation calculation state, the microcomputer calculates the estimated electrical angle from a value obtained by accumulating a second additional angle calculated by a second additional angle calculation circuit that performs torque feedback control that causes steering torque to follow a target torque value. In a low steering velocity state, the microcomputer calculates the estimated electrical angle in the second estimation calculation state.

Abstract: Provided is a steering control unit for improving influence of fluctuations in an estimated electrical angle on steering feel. A steering control unit includes a microcomputer that performs sensorless control of the driving of a motor by using an estimated electrical angle estimated by calculation. The microcomputer calculates the estimated electrical angle from a value that is obtained by selectively accumulating a first additional angle or a second additional angle. The microcomputer adjusts a vibration component of fluctuations in the estimated electrical angle by varying the amount of change in the first additional angle and the second additional angle.

Abstract: Provided is a steering control apparatus in which the response of steering assistance to driver's steering can be improved during execution of rotation angle sensor-less control. When the rotation angle sensor-less control is executed and when an induced voltage value is equal to or lower than a threshold voltage, driving of a motor is controlled based on a second addition angle. The second addition angle is calculated such that values obtained by multiplying a first pre-addition angle calculated based on a steering torque and a second pre-addition angle calculated based on an induced voltage derivative by respective predetermined use ratios that are based on the induced voltage value are added together. By using the second addition angle, a more appropriate estimated electrical angle is calculated in response to a driver's steering situation.

Abstract: Provided is a steering control apparatus capable of executing driving assistance control even during rotation angle sensor-less control. When an induced voltage generated in a motor is equal to or lower than a threshold voltage at an early stage of execution of the rotation angle sensor-less control and when the driving assistance control is executed based on a command value from a higher-level control apparatus, a second pre-addition angle that is based on the command value is used as a second addition angle in place of a first pre-addition angle that is based on a steering torque. Therefore, even in a situation in which the steering torque is not detected due to, for example, execution of driving assistance, an estimated electrical angle of the motor is calculated by integrating the second addition angle. Then, driving of the motor is controlled based on the calculated estimated electrical angle.

Abstract: A current command value calculation circuit includes an end abutment determination circuit and a guard processing circuit. When a decrease amount of an induced voltage value within a predetermined time is equal to or larger than a predetermined decrease amount in the state that a steering torque is equal to or larger than a predetermined torque, the end abutment determination circuit determines that the end abutment occurs. When a determination signal indicating that the end abutment state does not occur is input, the guard processing circuit outputs an elemental current command value directly as a q-axis current command value. When a determination signal indicating that the end abutment state occurs is input, the guard processing circuit outputs, as the q-axis current command value, a value obtained by limiting the elemental current command value so that its absolute value is equal to or lower than a predetermined limit current value.

Abstract: A cutting method in which a workpiece is cut on the basis of a plurality of tool paths parallel to one another into a shape having a corner that protrudes outward. A machining step for machining the workpiece on the basis of one tool path and a moving step for moving to the starting point of the next machining step after the completion of the one machining step are repeated. In the machining step, a cutting step for cutting the workpiece in the one tool path and a removing step for removing a burr by moving a tool relatively to the workpiece in the same tool path as that of the cutting step in a region forming the corner are successively performed.

Abstract: According to an embodiment of the present invention, the workpiece holding body 20 for surface processing includes the holder 21 and the adhesive sheet 22. The adhesive sheet 22 includes the first surface 22a (the first adhesive layer 221) and the second surface 22b (the second adhesive layer 222), the first surface 22a (the first adhesive layer 221) being bonded to the holder 21 at a first adhesive force, the second surface 22b (the second adhesive layer 222) being capable of holding a workpiece (the component main-body 110) at a second adhesive force, the second adhesive force being higher than the first adhesive force.

Abstract: According to a mode of the present invention, a method of manufacturing an electronic component includes: preparing a component main-body 110 including a first surface having an electrode-formed region having a plurality of bump electrodes 103, a second surface opposite to the first surface, and side peripheral surfaces connecting the first surface and the second surface; forming a mask section M1 on at least a peripheral portion of the first surface, the mask section surrounding the electrode-formed region, a height of the mask section being equal to or more than a height of the plurality of bump electrodes; bonding the mask section of the first surface to an adhesive layer 30 on a holder for holding a component; forming a protective film 105 on the component main-body, the protective film covering the second surface and the side peripheral surfaces; and removing the mask section M1 from the first surface.

Abstract: To provide a conveyance system and a rack made up of simple mechanical structures only and free of malfunctions, the rack being capable of reliably meshing with and separating from a plurality of pinions one after another without stoppage or breakage with less impact, vibration, noise and the like even when there are differences in phases and speeds. A rack (120) includes a main body (121) provided with a plurality of fixed rack teeth (122) in a central part thereof, and a movable part (123) provided with movable rack teeth (124) continuous with at least one end of the fixed rack teeth (122). The movable part (123) is pivotally supported around a support shaft (125). The support shaft (125) is provided more forward in a moving direction than a position where the movable rack teeth (124) of the movable part (123) are located.

Abstract: An image pickup apparatus capable of changing a live view photographing drive mode without causing freezing of live view display is demonstrated. When a switch is operated in a state where image signals output from an image pickup device sent via a first path are used for live view and image signals output from the image pickup device sent via a second path are used for AF, a drive mode of the image pickup device is changed such that image signals from the second path can be used for live view, then an acquisition destination of the live view signals is changed from the first path to the second path, then the drive mode is changed such that high-definition live view image signals are output from the first path, and then the acquisition destination of the live view signals is changed from the second path to the first path.