Abstract: A rotation member which rotates in cooperation with a steering wheel is provided with a cord board and a turning amount and a turning direction of the steering wheel are detected by the cord board and photo-interrupters. A first gear of the rotation member meshes with a second gear to turn a screw shaft, thereby moving a carriage in an axial direction of the screw shaft and also moving a slit of a douser mounted to the carriage relative to an LED and a two-piece photodiode. An absolute angle from a neutral position of the steering wheel is detected based on a change in an amount of light received by the two-piece photodiode which changes according to a moving position of the slit.

Abstract: First slits constituting a first slit array are formed in a circumferential side portion of a cylindrical code plate so as to be arranged in the circumferential direction of the code plate. Second slits constituting a second slit array are also formed in the circumferential side portion. The first slit array and the second slit array are arranged along the rotation axis of the code plate. First and second detecting units are provided for the first slit array and a third detecting unit is provided for the second slit array. In the first and second detecting units, a light-emitting element and a light-receiving element are disposed so that part of the circumferential side portion is interposed in between. The positions of the light-emitting element and the light-receiving element are set identical when measured along the circumference of the code plate, and a dimension &bgr; of the light-emitting element that is located inside the code plate is set smaller than a dimension &ggr; of the light-receiving element.

Abstract: In a chemical reactor, a gas and a liquid which are in trace volumes are used to produce air bubbles and thus increase the interface area between the gas and liquid, substantially enhancing the efficiency of reaction between the gas and liquid. The chemical reactor comprises the following: a sheath flow forming block which forms a plurality of alternating sheath flows with two mutually unmixable fluids; a plurality of inlet ports through which said two fluids flow into the sheath flow forming block; a contraction zone which simultaneously contracts a plurality of sheath flows formed in the sheath flow forming block; and reaction flow channels each of which is connected with said contraction zone and is smaller in width than the sheath flow forming block.

Abstract: A rotation member which rotates in cooperation with a steering wheel is provided with a cord board and a turning amount and a turning direction of the steering wheel are detected by the cord board and photo-interrupters. A first gear of the rotation member meshes with a second gear to turn a screw shaft, thereby moving a carriage in an axial direction of the screw shaft and also moving a slit of a douser mounted to the carriage relative to an LED and a two-piece photodiode. An absolute angle from a neutral position of the steering wheel is detected based on a change in an amount of light received by the two-piece photodiode which changes according to a moving position of the slit.

Abstract: First slits constituting a first slit array are formed in a circumferential side portion of a cylindrical code plate so as to be arranged in the circumferential direction of the code plate. Second slits constituting a second slit array are also formed in the circumferential side portion. The first slit array and the second slit array are arranged along the rotation axis of the code plate. First and second detecting units are provided for the first slit array and a third detecting unit is provided for the second slit array. In the first and second detecting units, a light-emitting element and a light-receiving element are disposed so that part of the circumferential side portion is interposed in between. The positions of the light-emitting element and the light-receiving element are set identical when measured along the circumference of the code plate, and a dimension &bgr; of the light-emitting element that is located inside the code plate is set smaller than a dimension &ggr; of the light-receiving element.

Abstract: A reaction apparatus comprises a first supply flow channel having a fine flow channel cross sectional area for a liquid pressurized by a pressurizing device, a gas supply flow channel having a fine flow channel cross sectional area for supplying a gas, a two-phase flow channel having a fine flow channel cross sectional area in communication with a joined portion for the first supply flow channel and the second supply flow channel for flowing a gas/liquid two-phase fluid, a gas bubble reaction flow channel in communication with the exit of the gas/liquid two-phase channel and having a flow channel cross sectional area larger than that of the gas/liquid two-phase flow channel, and a liquid discharge flow channel for discharging the liquid in the gas bubble reaction flow channel. Therefore, in the reaction apparatus, a stable mixing ratio of a gas to a liquid can be obtained and the mixing speed of the gas to the liquid is increased.

Abstract: Water to be treated is passed through a membrane (net), magnetic floc positioned in a portion below a level of the water to be treated is deposited to a surface of the membrane, and the surface of the membrane with the magnetic floc deposited is moved to an atmospheric portion above the level of the water to be treated. In the atmospheric portion, excess water from the magnetic floc flows downward due to gravity to concentrate the magnetic floc. A permanent magnet is located near a position to which the membrane surface with the magnetic floc deposited thereon moves. There are further provided between the magnet and the membrane surface a moving body (shell) formed by a non-magnetic material, a spatula for scraping the magnetic floc from the moving body, and a sludge vessel in which a released magnetic floc is recovered.

Abstract: A rotation detector has a simple structure and operates reliably to check quickly for erroneous installation as an encoder for detecting the rotation rate of a multi-rotation body that rotates for a finite number of revolutions of one revolution or more. A stator member is formed of a housing and a cover coupled together, and a detection window is formed on an outer peripheral wall of the housing. A rotor member is rotatably supported by the housing and the cover, and a rotary ring arranged concentrically with the center of rotation of the rotor member is housed in the stator member. Rotation of the rotor member is intermittently transmitted to the rotary ring via an intermediate gear. According to the variation of outputs from photointerrupters that turn on or off according to the rotation of the rotary ring, an absolute position of the rotor member is detected.

Abstract: Disclosed is a steering sensor unit which can highly accurately detect the rotational angle of a steering wheel, can be easily mounted on a steering shaft, and ensures satisfactory operability after mounted on the steering shaft. A rotor of a steering sensor has joint portions provided thereon for transmitting rotation of a steering wheel to the rotor. When the steering sensor unit is mounted on a steering shaft, the steering sensor is disposed in a position close to the steering wheel and the rotary connector is disposed below the steering sensor. Elastic engagement bosses are formed at distal ends of the joint portions. The rotor and the steering wheel are coupled to each other by fitting the elastic engagement bosses into engagement holes bored in a central hub of the steering wheel.

Abstract: The present invention provides a steering angle sensor unit, which can make an amount of rotation of a first rotor equal to that of rotation of a rotary member and which can accurately detect the rotation of the first rotor. The steering angle sensor unit comprises a rotary connector, which has first and second rotors, placed across a stator in such a way as to face each other and connected to each other through a through hole and rotatably supported, and which has a flexible cable, placed in such a manner as to be wound around the first, second rotors, and the stator, and as to have an end portion supported by the stator and the other end portion supported by the first rotor, and also comprises a steering angle sensor, which has a rotary member rotatably supported by the stationary member and which has an amount-of-rotation detection for detecting an amount of rotation of this rotary member.

Abstract: A steering angle sensor unit includes a rotary connector 200 for electrically connecting an electric device mounted on a steering wheel and an electric device mounted on a vehicle body, and a steering angle sensor 210 for detecting information about the turn of the steering wheel. A rotor member 2 in the rotary connector 200 and a rotor member 3 in the steering angle sensor 210 are formed of separate members, one of the rotor member 2 in the rotary connector 200 and the rotor member 3 in the steering angle sensor 210 has a slot 2d extending in the radial direction, the other rotor member 2 or 3 has a cylindrical projection 3i having almost the same diameter as the minor diameter of the slot 2d, and the slot 2d and the projection 3i are engaged with each other.

Abstract: Disclosed is a rotation detecting device of a multi-rotation body, in which a code plate of an incremental encoder is fixedly mounted to a first rotor which is rotatably supported on a housing; a small-diameter portion and a large-diameter portion are formed on the outer peripheral surface of the first rotor; and furthermore a pair of engaging projections are formed on both sides of a clearance groove formed in the large-diameter portion. A rotating ring is mounted on the inside bottom surface of the housing; on the rotating ring is formed a driven gear through a range of about 90 degrees, and a shield plate is erected in a position corresponding to the driven gear. Five photo-interrupters are arranged astride the shield plate on the path of rotation of the rotating ring, so that the position of the rotating ring can be detected by the ON/OFF operation of the photo-interrupters. On the housing an intermediate gear is rotatably supported, and is in constant mesh with the driven gear.

Abstract: Provided is a mechanical structure, for an information handling unit in which are included one or more exchangeable electric components, whose interior is enclosed by a box. The box has: an exchange opening formed for a replacement of an exchangeable electric component; and a lid for engaging the exchange opening and for contacting the exchangeable electric component. According to the present invention, the heat releasing effect can be enhanced with no deterioration of the ease with which a heat generating component can be exchanged. In addition, the present invention can be embodied as a relatively simple mechanical structure, and manufacturing costs can be reduced.

Abstract: An optical rotary encoder including a rotary substrate and an A, B phase detection pattern formed in the rotary substrate and having light-transmitting holes and light-transmitting grooves. The light-transmitting holes and grooves are apertures used to detect the angle of rotation, direction of rotation, and rotational speed of a drive shaft, and are formed with a constant width w and at a constant pitch p in the outermost periphery of the rotary substrate. The light-transmitting hole, being a slot, is formed slightly inward from the outer peripheral edge of the rotary substrate and tilted in a constant direction and at a constant angle such that an axial line in the longitudinal direction thereof is tilted with respect to a straight line connecting the center of rotation of the rotary substrate and the center between the light-transmitting holes.

Abstract: A machine tool which has a swingable spindle head comprises a base member 1, a retaining member 5 attached swingably by a support shaft 3 to the base member 1, a spindle head 7 attached onto the retaining member 5, a lateral slider 15 being capable of linearly reciprocating in a linearly reciprocating direction along a chord of a circular arc described by an end portion of the retaining member 5, a longitudinal slider 21 provided in the lateral slider 15 reciprocating in a direction perpendicular to the chord, a connecting shaft 23 pivotally connecting the retaining member 5 to the longitudinal slider 21, and a linear drive system connecting to the lateral slider 15. When the linear drive system drives, the retaining member 5 can be swung around the support shaft 3, so that swing of the spindle head 7 can be permitted.

Abstract: A communication system for e.g. an automobile including a system control unit for activating a selected audio/video device (such as an AM/FM tuner or a navigation system) in response to a request signal transmitted on a bus from a command input terminal. The system control unit generates command signals necessary to activate the selected audio/video device in response to the request signal, including command signals to de-activate any currently-operating devices. Conversely, adjustment commands (such as volume change or channel change commands) are transmitted directly (that is, unchanged by the system control unit) from the command input terminal to the selected audio/video device on the first bus line. In addition, the audio/video devices transmit reset signals whenever power is shut-off and then restored. Each reset signal includes a transmission source address corresponding to the audio/video device which transmitted the signal.

Abstract: A communication system including a plurality of audio/video devices including one or more audio signal source devices and image (video) signal source devices connected to a bus, each audio/video device of a common type having a common bus address. Each audio/video device is provided with a predetermined priority value which is stored in memory. Upon power up, every device transmits a communication frame including its own address and its priority value on the bus. When two or more common-type devices (i.e., having a common address) are connected to the bus, conflict is avoided by disabling the device or devices having lower priority values. That is, when each of the common-type device receives a communication frame having the common address, the device compares the transmitted priority value with its stored priority value. If the stored priority value is less than the received priority value, the device disables itself.

Abstract: A timing control method and system for performing recording/reproducing operation using timing signals and servo signals prerecorded on a magnetic disk and a timing signal recording system for recording the timing signals on the magnetic disk. Timing signals are identified by a detection circuit in response to a pulse generated by a pulse generator responsive to revolution speed of the magnetic disk and the servo signals are extracted based on the timing signal as a reference, then the various signals for read/write operation, e.g. sector mark signal are generated based on the extracted servo signal. The timing signals are recorded with a single feed quantity smaller than a track width by means of a timing signal recording system having a incrementally movable mechanism for a head and a recording circuit for recording timing signals at respective stop positions.

Abstract: An electronic music note generator having a volume control circuit using an RC network to control sound amplitude. Signals are formed by the discharge characteristics of an RC network and the voltage level at charging determines the volume of the sound produced. Reverberation characteristics are provided by a persistence in the signal between notes as a result of the RC discharge characteristic.

Abstract: An integrated circuit has semiconductor devices on a substrate. The devices each have gates of polycrystalline silicon and the devices are insulated from each other by a stopper diffused into the substrate between said devices at least in the regions adjacent said gates. Reliability of the integrated circuit is improved by having each polycrystalline silicon gate formed with a region adjacent said stopper diffused with impurity of the same polarity as the impurity diffused in said stopper.