摘要:
An image-capturing device disclosed in the present application includes: an image-capturing element including a plurality of photoelectric conversion elements arranged in two dimensions, wherein the plurality of photoelectric conversion elements are exposed through successive scanning and electrical signals are read out from the plurality of photoelectric conversion elements through successive scanning, thereby generating an image signal; a lens optical system including a focus lens for collecting light toward the image-capturing element; a driving section for driving one of the image-capturing element and the focus lens so as to change a distance between the image-capturing element and the focus lens; a displacement control section for outputting a command to the driving section so as to control displacement of the image-capturing element or the focus lens to be driven based on a predetermined displacement pattern; and a synchronizing section for controlling the displacement control section based on exposure timing of the image-capturing element, wherein: the predetermined displacement pattern represents a reciprocal displacement of the image-capturing element or the focus lens to be driven over an entire section between a first focus position of the focus lens or the image-capturing element at which focus is at a first object distance in an image-capturing scene and a second focus position of the focus lens or the image-capturing element at which focus is at a second object distance in the image-capturing scene; and the image-capturing element or the focus lens to be driven is reciprocally displaced an integer number of times within an exposure time for one image of the image-capturing scene for each of the plurality of photoelectric conversion elements.
摘要:
A movement control apparatus includes: an actuator that causes a driven body connected to a driving coil to perform reciprocating movement; a signal generation unit that generates a velocity command signal which indicates a target velocity of the driven body; a driving unit that supplies electric current corresponding to a driving signal to the driving coil; a voltage detection unit that detects induced voltage generated in the driving coil, and outputs a voltage signal corresponding to the induced voltage; a signal correction unit that corrects, based on the driving signal and the voltage signal, the voltage signal to adjust a shift of a resistance value from a reference resistance value of the driving coil, thereby generating a velocity signal; and a control unit that generates the driving signal based on the velocity command signal and the velocity signal, and outputs the driving signal to the driving unit.
摘要:
A power supply is provided, which is capable of stabilizing a generated output of the fuel cell using neither a voltage nor a current outputted from the fuel cell as a negative feedback signal. The power supply includes a fuel cell 110, a DC-DC converter 120 that adjusts a voltage outputted from the fuel cell 110 according to a PWM signal and then outputs the voltage to a load device 200, a switching controller 130 that generates the PWM signal and outputs this signal to the DC-DC converter 120, a voltmeter 140 that measures a voltage Vout outputted from the DC-DC converter 120, and a rechargeable battery 150 connected to the load device 200 in parallel. The DC-DC converter 120 calculates a duty ratio of the PWM signal by performing a specific computation using the voltage Vout and a target fuel cell voltage Vt.
摘要:
Electronic equipment is provided in which a bi-directional voltage converter is connected between a fuel cell and a secondary battery, and a load apparatus is connected in parallel to the fuel cell. Further, if a plurality of voltage converters are provided, when each output voltage is closer to an output voltage of the secondary battery than an output voltage of the fuel cell, they are classified into a first voltage-converter group, while being closer to the output voltage of the fuel cell than the output voltage of the secondary battery, they are sorted out as a second voltage-converter group. Then, the secondary battery is connected in parallel to the first voltage-converter group and the fuel cell is connected in parallel to the second voltage-converter group.
摘要:
An optical disk drive is designed to read and/or write data from/on a spiral string of tracks where land and groove tracks are alternated. The drive includes: a light source for radiating a light beam; a lens for converging the light beam; a mechanism for moving the lens; a photodetector for generating an electrical signal based on at least a part of the light beam reflected from the optical disk; and a control section for controlling the light source and the mechanism responsive to the electrical signal. While performing a seek operation by having the lens moved by the mechanism such that a target track, from/on which the data should start being read or written, is irradiated with the light beam, the control section tries to get a PLL locked by irradiating another track, which precedes the target track by at least one, with the light beam.
摘要:
An optical disc apparatus includes a control section. The control section performs a first search while the tracking control is in the off state. The first search is for searching for a plurality of sets of the focus positions of the light beam and the spherical aberration amounts such that an amplitude of the tracking error signal is greater than a predetermined value. The control section performs a second search while the tracking control is in the on state. The second search is for determining a set of the focus position of the light beam and the spherical aberration amount such that the reproduced signal quality index is substantially optimal, among the plurality of sets of the focus positions of the light beam and the spherical aberration amounts obtained in the first search.
摘要:
Transmission line structure is composed of a pair of signal conductors which are embedded in one wiring region of a dielectric layer and a thickness in height of the signal conductor is larger than a width, and is constituted so that a coupling impedance between the adjacent signal conductors is lower than a coupling impedance between the signal conductor and another conductor formed in another wiring region, and thus to provide a multi-layer wiring board having a transmission line structure of high wiring density and excellent transmission characteristic.
摘要:
An image printing apparatus according to the present invention includes a conveying section for conveying a printing medium including a first portion and a second portion; a section for making a first printing material adhere to the first portion of the printing medium; and a section for making a second printing material adhere to the second portion of the printing medium, the first and second printing materials being different from each other.
摘要:
A movement control apparatus includes: an actuator that causes a driven body connected to a driving coil to perform reciprocating movement; a signal generation unit that generates a velocity command signal which indicates a target velocity of the driven body; a driving unit that supplies electric current corresponding to a driving signal to the driving coil; a voltage detection unit that detects induced voltage generated in the driving coil, and outputs a voltage signal corresponding to the induced voltage; a signal correction unit that corrects, based on the driving signal and the voltage signal, the voltage signal to adjust a shift of a resistance value from a reference resistance value of the driving coil, thereby generating a velocity signal; and a control unit that generates the driving signal based on the velocity command signal and the velocity signal, and outputs the driving signal to the driving unit.
摘要:
An image pickup device includes an image pickup element; a lens optical system including a focus lens; a driving section for driving one of the image pickup element and the focus lens so as to change a distance between the image pickup element and the focus lens; a displacement control section configured to output an instruction to the driving section to control displacement of the image pickup element or the focus lens which is driven, based on a prescribed displacement pattern; and a synchronization section configured to control the displacement control section based on timing for exposing the image pickup element.