摘要:
A communication device is disclosed which is comprised of: a transmitter for transmitting an ultra wide band wireless wave pulse; multiple receivers which are disposed equidistant from the transmitter and receive the ultra wide band wireless wave pulse; and distance-measuring equipment which detects a distance or a direction to an object by measuring time intervals between the first reception times when receivers receive the ultra wide band wireless wave pulse directly from the transmitter and the second reception times when the receivers receive a object-reflected wave of the ultra wide band wireless wave pulse.
摘要:
An input device includes a substrate and a movable object that moves on the substrate. One of the substrate and the movable object includes a magnetic field generator and the other of the substrate and the movable object includes electromagnetic conversion elements provided to detect magnetic fields generated outside of the magnetic field generator.
摘要:
A disclosed antenna device includes a plate-like ground plate, and a feeding unit that extends from the ground plate for a predetermined length at a predetermined angle. The feeding unit is constituted by a half-body, which is a body, such as a circular cone, halved by a plane perpendicular to the ground plate, and the feeding unit is prepared perpendicular to the ground plate.
摘要:
An impulse communication apparatus includes an impulse train generating part generating an impulse train from one modulated pulse by on-off keying, and an impulse train sending part sending the impulse train generated by the impulse train generating part.
摘要:
A coordinates input device includes an operation unit that receives an operation input, a vibration generator that applies a vibration to the operation unit, and a vibration control unit that controls the vibration generator to apply the vibration to the operation unit when the operation input is received by the operation unit. The vibration generator includes a power feed unit provided to the operation unit, and a magnetic-field applying unit having sub-units. Each of the sub-units has first and second magnets spaced apart from each other with a given gap. The magnetic flux produced by the first and second magnets crosses a current flowing in the power feed unit.
摘要:
A design support apparatus, when designing multichip packages, verifies connections between a semiconductor chip and leads of a lead frame. Distances between two wires or distances between the wires and the other components are calculated using three-dimensional drawing data (CAD data) and semiconductor package data. Components of the semiconductor packages such as wires, lead frames, or die pads are drawn in the three-dimensional drawing data. The semiconductor package data describes specifications of the semiconductor packages such as outer sizes of the packages. Distance values are compared with design rule data. The design rule data defines constraints on the positional relationship between each wire and each component. The design support apparatus determines whether the acquired positional relationship is proper on the basis of design rule data.
摘要:
An input device for inputting information corresponding to a direction of inclination and an angle of inclination of a movable part into devices such as a computer. The input device includes a substantially spherical part provided at a lower end of said movable part; bearing means which rotatably supports said substantially spherical part of said movable part; a recovery means which rotates said substantially spherical part within said bearing means so as to recover the upright position of the movable part; and inclination detecting means which detects a direction of inclination and an angle of inclination of said movable part.
摘要:
A pointing device for moving a display pointer by tilting a center shaft including a magnet and using Hall elements fixed near the magnet. The center shaft is sustained by a pivot sustainer fixed on a central axis of the device, and the tilting movement of the center shaft is changed to movement made along the central axis by a movement converting mechanism using spring force, for moving the magnet back on the central axis when the center shaft is freed from tilting.
摘要:
First, a reference point on a die pad and a leadframe tip arrangement line are set. A plurality of isosceles triangles having the same base length are set so that their apices are located at the reference point. A given number of isosceles triangles are arranged inside the leadframe tip arrangement line by adjusting the base length. The base length of the isosceles triangles is employed as a uniform lead pitch, and a uniform lead width is then determined. The base length of the isosceles triangles is calculated by using the successive bisection algorithm.
摘要:
A pointing control device in a computer, including a support, a manually movable actuating member movably supported by the support, and a magnetic reluctance type detector for detecting a magnitude of movement of the movable actuating member within a unit of time, so that the pointer or the cursor can be moved in accordance with the detected magnitude of movement of the movable actuating member.