摘要:
A rotation angle detection apparatus has angle detection means that has detection circuits each including a detection element part having a coil and a resistor and that also has inductance changing means that changes the inductance of the coil in accordance with the rotation of a rotation measurement target. The rotation angle detection apparatus further has reference pulse voltage generating means for causing the detection circuits to generate output signals; and calculating means for calculating the output signals of the detection circuits. The calculating means obtains an integral by integrating, for a predetermined time, a transient output voltage occurring when a reference pulse voltage generated by the reference pulse voltage generating means is input to the detection circuits. The calculating means then detects, based on the integral, a rotation angle of the rotation measurement target, whereby the number of components of the rotation angle detection apparatus can be reduced and error factors of the output signal of the detection circuits can be reduced. As a result, the logic circuits and amplifier circuits can be simplified and hence the cost of the rotation angle detection apparatus can be reduced.
摘要:
A rotation sensor including: a main rotor that integrally rotates with a rotor to be measured; a sub-rotor that rotates in accordance with rotation of the main rotor with a different number of revolutions from that of the main rotor; a first detector detecting rotation of the main rotor; and a second detector detecting rotation of the sub-rotor. The rotation sensor detects an absolute rotation angle of the rotor to be measured from detection signals from the first detector and the second detector. Respective detection signals obtained from the first detector and the second detector are cyclically output in accordance with rotation of each rotor, and the following relationship is satisfied: (Tm−Tc×i)×n=Tm (i and n are positive integers), wherein Tc is a cycle of the detection signal from the first detector, and Tm is a cycle of the detection signal from the second detector.
摘要:
A rotation sensor including: a main rotor that integrally rotates with a rotor to be measured; a sub-rotor that rotates in accordance with rotation of the main rotor with a different number of revolutions from that of the main rotor; a first detector detecting rotation of the main rotor; and a second detector detecting rotation of the sub-rotor. The rotation sensor detects an absolute rotation angle of the rotor to be measured from detection signals from the first detector and the second detector. Respective detection signals obtained from the first detector and the second detector are cyclically output in accordance with rotation of each rotor, and the following relationship is satisfied: (Tm−Tc×i)×n=Tm (i and n are positive integers), wherein Tc is a cycle of the detection signal from the first detector, and Tm is a cycle of the detection signal from the second detector.
摘要:
A rotation angle detection device comprises angle detection means including detection circuits including detection element members consisting of coils and resistances, and inductance changing means for changing inductance of said coils corresponding to rotation of a rotation body to be measured, reference pulse voltage generating means for making said detection circuits generate output signals, and operating means for calculating output signals of said detection circuits, wherein reference pulse voltage generated by said reference pulse voltage means and output voltages of said detection circuits output when said reference pulse voltage is input are compared for calculating rotation angle of said rotation body to be measured.
摘要:
A USB hub capable of reducing power consumption in a USB system. The USB hub includes an upstream USE port, a downstream USB port, a clock pin that supplies an operation clock to a USE peripheral device, and a hub controller that stops clock supply to the USB peripheral device via the clock pin when a connecting between the upstream USB port and a USB host is disconnected or when the hub controller receives a suspend request to the downstream USB port from the USB host.
摘要:
This electric fan has a rotation shaft that is provided rotatably with respect to a stator, a rotor yoke provided on the rotation shaft and formed in a bottomed cylindrical shape so as to cover the stator from a front surface, and a bracket that fixes the stator to a fan shroud and is formed so as to cover a rear surface of the stator, with a fan body provided so as to integrally rotate with the rotation shaft and the rotor yoke. The fan body has a fan boss formed in a bottomed cylindrical shape so as to cover the rotor yoke from a front surface, and a plurality of blades that is provided protruding radially from an outer circumferential surface of the fan boss. A first labyrinth portion is provided between an opening portion of the fan boss and the fan shroud.
摘要:
An example of a game apparatus includes a CPU. The CPU activates two outward cameras to allow a user to image, for example, a flower. The CPU filters data for search included in a database. The CPU obtains color information, shape information and a size of the imaged flower. A shape category is obtained, and with the shape category, data for search included in a database for search is further filtered. Then, by comparing the color information, the shape information, and the size of the imaged flower with the data for search to be used, a score of a degree of approximation of the color information and scores of the degree of matching of the shape information and size, etc. are obtained. Then, images of flowers as candidates are presented in the descending order of the score (similarity level).
摘要:
Provided is a metal core board which has a preferable function for a vehicle-mountable junction box, specifically, is reduced in size or improved in mounting efficiency. A metal core board for a vehicle-mountable junction box, which is mountable on the vehicle-mountable junction box, wherein a core plate forming an intermediate layer of the metal core board has a plurality of slits and an island surrounded by separating connection parts present between the slits; and in the state where the island is held between insulating layers stacked on both of two surfaces of the core plate, through-bores 46 are formed at the separating connection parts to remove the separating connection parts and the island is made electrically independent from a remaining part of the core plate while being held between the insulating layers. Thus, a plurality of circuits can be formed.
摘要:
A game apparatus includes a first LCD and a second LCD, and on the first LCD, a two-dimensional game screen including objects positioned in a two-dimensional coordinate is displayed. When a two-dimensional coordinate of a specific object out of the objects positioned in the two-dimensional coordinate satisfies a predetermined condition, a three-dimensional coordinate of each of the objects is calculated on the basis of the two-dimensional coordinate of each of the objects. The object is modeled in the calculated three-dimensional coordinate, moved by a predetermined animation, and then shot by a virtual camera. Accordingly, a game screen of an image (animation) of the three-dimensional virtual space shot by the virtual camera is displayed on the second LCD.
摘要:
An adaptor according to an embodiment of the present invention includes: a power supply line to be connected to an external power supply; a first connector including a plurality of terminals; and a second connector including a first terminal connected to at least one of the plurality of terminals of the first connector and a second terminal connected to the power supply line. The adaptor realizes the connection between an external device and a wireless USB module.