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| Number | Title | Issue Date |
| 7465918 | Rotation angle sensor device for detecting rotation angle of a rotary shaft A rotation angle detector is provided with a spring to thrust a rotary body against protrusions formed on an inner wall of an opening via a detector body in a manner to keep the rotary body rotatable without any play in a linked motion with a steering shaft. As a re... | 12/16/2008 |
| 7435947 | Apparatus and methods for integrating encoding functions in material placement machines A method of providing input to an inspection system for inspecting material laid by a composite material placement machine. A placement machine component that drives a first encoder output is used to drive a second encoder output. The second encoder output is used t... | 10/14/2008 |
| 7406772 | Device for measuring the position, the path or the rotational angle of an object A device for measuring the position, path, or rotational angle of an object exhibits a dimensional gauge that is connected to the object and that can be scanned. The dimensional gauge assigns measured values to the object's positional range, and these measured value... | 08/05/2008 |
| 7322115 | Steering column module for a motor vehicle The invention relates to a steering column module for a motor vehicle, comprising a steering angle sensor (13) that is inserted into a module housing (1,2). The rotor of the steering angle sensor is assigned to a steering column and co-operates with at... | 01/29/2008 |
| 7312590 | Model railroad velocity controller Control over velocity of a model train may be determined based upon the speed of rotation of a control knob. A processor receives electronic pulses indicating rotation of the knob beyond a predetermined increment of angular distance. The processor calculates the amo... | 12/25/2007 |
| 7224139 | Servo driver and encoder signal processing IC A servo driver (3) includes: an input section (11) for input-specifying the type of an encoder (7) at the side of an actuator (2); a control section (13) for generating a control signal (12) according to the type input; and ... | 05/29/2007 |
| 7199356 | Absolute angle detecting device First and second signal detecting element groups are respectively arranged to face first and second signal detecting tracks that are provided on a first code wheel. In addition, third and fourth signal detecting element groups are respectively arranged to face third... | 04/03/2007 |
| 7173236 | Rotary electric component including a rotatably supporting case and operation panel using the same A rotary electric component includes a case for accommodating a rotary body having a cylindrical operation portion and for rotatably supporting the rotary body and a substrate having a rotation detecting means linked to the rotary body at a lower portion of the case... | 02/06/2007 |
| 7145130 | Rotation detecting device and automobile with the same The present invention provides a rotation detecting device having a small size, low manufacturing costs, and excellent quietness, and an automobile equipped with the rotation detecting device. The rotation detecting device comprises a non-rotating internal gear 2... | 12/05/2006 |
| 7091473 | Measuring system for recording angular and linear absolute values An absolute measuring system for the determination of angles or paths is described. During normal operation the encoder of this system is fed by a voltage supply (mains). If the voltage supply fails the encoder is switched to an auxiliary power supply which uses les... | 08/15/2006 |
| 7091474 | Rotation angle detecting device A rotation angle detecting device includes a housing which is constituted by a combination of a case and a cover; a resistance board; a code wheel; a slider rotating plate; a slider; a circuit board; signal detecting elements; and a gear which transmits the rotation... | 08/15/2006 |
| 7087889 | Rotational angle detecting apparatus and torque detecting apparatus First and second targets, the numbers of which are coprime, are provided at a rotor. Two detecting means oppose each of the first and second targets to output detection signals having phases different from each other in accordance with each position of the targets a... | 08/08/2006 |
| 7085638 | Steering angle sensor assembly including reduction gear and logic module A steering angle sensor assembly is for use with a vehicle having a rotatable steering mechanism. The assembly includes a first rotational indexing member operably couplable to the steering mechanism for rotation therewith. The steering mechanism and the first index... | 08/01/2006 |
| 7067825 | Eye protection system on an electronically controlled fluorescence microscope The invention concerns a fluorescence (stereo)microscope having a filter carrier that can be loaded with manually exchangeable filter inserts, and having a reliable eye protection system against the energy-rich light radiation in the context of a carrier position wi... | 06/27/2006 |
| 7060969 | Rotating machine having rotation sensors Three rotation sensors circumferentially arranged at 90 degree intervals in a disk code wheel attached to a motor's output shaft respectively output a signal corresponding the rotational speed of the wheel. An error component of one period (one-periodic component) o... | 06/13/2006 |
| 7000487 | Magnetic steering angle detection apparatus A magnetic steering angle detection apparatus includes a magnet rotating in synchronization with a steering shaft mounted on a vehicle, senses a change of a magnetic field from the magnet by use of a hall IC mounted on a column side, and detects a rotation angle of ... | 02/21/2006 |
| 6972404 | Optical control device having a controller that controls track movement of a driven member through a drive unit with reflecting regions An optical control device includes a drive member formed with a plurality of reflecting regions along a second track and movable along the second track for driving a driven member to move along a first track. An optical unit emits a light beam that is incident upon ... | 12/06/2005 |
| 6937331 | High-speed electromechanical shutter for imaging spectrographs The present invention presents a high-speed electromechanical shutter which has at least two rotary beam choppers that are synchronized using a phase-locked loop electronic control to reduce the duty cycle. These choppers have blade means that can comprise discs or ... | 08/30/2005 |
| 6737638 | Gear-reduction device, particularly for measuring and transmitting rotary and swivel movements A gear-reduction device for measuring and transmitting the movements of a rotary object has a sequential arrangement of wheel/pinion pairs. Each wheel/pinion pair consists of a gear wheel and a pinion that are rigidly connected to a common gear axle. At least part o... | 05/18/2004 |
| 6731571 | Position detecting and correcting device for timepiece A timepiece includes a reference wheel and a target wheel each having one or more reflective members for reflecting a light generated from a light emitting device. The position of the reference wheel may be positively determined when receiving a starting code which ... | 05/04/2004 |
| 6563109 | Apparatus for optoelectronically determining power using a light source being of annular design The present invention provides an apparatus for optoelectronically determining power for a moving machine element. The apparatus includes two parallel coding discs which are mounted on the machine element and each have grid lines or light windows distribu... | 05/13/2003 |
| 6534762 | Method and device for detecting position of a rotating control member An apparatus and method for the multiple detection of optoelectronic signals, especially for detecting the positions of setting elements of flaps, slides, valves, etc. arranged in motor vehicles, to determine the steering angles for controlling driving dy... | 03/18/2003 |
| 6472657 | Laser synchronized high-speed shutter for spectroscopic application A fast mechanical shutter, based on rotating chopper wheels, has been designed and implemented to shutter the entrance slit of a spectrograph. This device enables an exposure time of 9 μs to be achieved for a 0.8 mm wide spectrograph entrance slit, achie... | 10/29/2002 |
| 6465772 | Optical encoder having multiple thumbwheels with integral encoder patterns An optical encoder assembly reduces the space required to mount multiple thumbwheels on a control panel by utilizing wheels with integral encoder patterns. An encoder pattern comprising two tracks of reflective dots is attached to the side of each wheel. ... | 10/15/2002 |
| 6362469 | Rotation detector for multi-rotation body having detection window 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. ... | 03/26/2002 |
| 6323786 | Absolute-value encoder device An absolute-value encoder device for detecting a plurality of rotation quantities is disclosed. An A/B phase forming portion 610 forms an A-phase pulse signal and a B-phase pulse signal, based on light passing through a slit rotating together with a rotar... | 11/27/2001 |
| 6285024 | Combined torque and angular position sensor A combined torque and angular position detector includes two disks rotatable about a common axis. Relative angular displacement of the disks results from torque applied thereto. Each disk has a number of regions of differing optical transmissivity and the... | 09/04/2001 |
| 6255645 | Method and apparatus for optically measuring drive train backlash Methods and apparatus for quantifying the amount of backlash in drive trains. Using two optical transducers techniques are disclosed that lend themselves to self diagnosis of backlash in drive train systems. The techniques are useful in autochanger drive ... | 07/03/2001 |
| 6232885 | Electricity meter A meter for measuring electricity usage for a given load includes a housing and two light sources disposed in the housing and configured to output light at a predetermined frequency. Two light receivers are disposed in the housing so that a light path is ... | 05/15/2001 |
| 6130425 | Rotating detecting device of multi-rotation body 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 for... | 10/10/2000 |
| 6031224 | Position measuring system A position measuring system including a scale and a scanning unit for scanning the scale and movable relative to the scale in a measuring direction, for generating position-dependent measuring signals, the scanning unit including a pattern with first and ... | 02/29/2000 |
| 6014130 | Mouse encoding device A mouse encoding device that includes an operating interface for the user to operate on and a sensing device for sensing user input through the operating interface in order to modulate light pulses and generate encoded electrical signals. Through the rota... | 01/11/2000 |
| 5907976 | Apparatus for determining the absolute position of throttle dynamic brake and reverser handles on a locomotive control stand An apparatus for determining and encoding the position of a control handle on a control stand of a locomotive or other railway transit vehicle utilizing a rotational, absolute encoder rigidly mounted adjacent to the axle to which the control handle is att... | 06/01/1999 |
| 5642297 | Apparatus and method for measuring the kinematic accuracy in machines and mechanisms using absolute encoders A system for measuring the accuracy of a machines and mechanisms having a driving member and a driven member is disclosed. The absolute position of the driving member is determined using a first absolute encoder operatively engaged to the driving member. ... | 06/24/1997 |
| 5640007 | Optical encoder comprising a plurality of encoder wheels An absolute encoder monitors rotary position and senses rotary displacement relative to a measuring scale. The absolute encoder evaluates rotary displacement by providing a plurality of rotatably mounted encoder wheels, and each wheel includes at least on... | 06/17/1997 |
| 5543613 | Multi-digit fluid flow roller meter A multi-digit roller meter with encoder for the electronic read-out of a volume measuring instrument or a current measuring instrument, which during the twisting or turning of sensors in relation to the indicator wheels through a determined angle, allows ... | 08/06/1996 |
| 5457371 | Binary locally-initializing incremental encoder A binary locally-initializing incremental position encoder (112) for determining the position of an object, i.e. a robot arm (102). The inventive position encoder (112) is adapted to be coupled to the object (102) and includes first, second, third and fou... | 10/10/1995 |
| 5393201 | Synchronous rotating apparatus for rotating a plurality of shafts A synchronous rotating apparatus synchronously rotates a plurality of rotary shafts independently driven by corresponding driving devices. The apparatus includes: a mechanical regulating member, arranged on the shafts, for maintaining relative rotating po... | 02/28/1995 |
| 5119128 | Apparatus for generating timing pulses in an electrophotographic printing machine An apparatus for generating timing pulses which includes a first flexible member having a plurality of spaced marks thereon, with the first flexible member being rotatably mounted. The apparatus further includes a second flexible member, positioned substa... | 06/02/1992 |
| 5066857 | Incremental angle encoder having spiral scanning field and multiple discs An incremental angle encoder of the invention has an encoder shaft connected with a first disk having an incremental angular graduation and a first and a second reference mark. A second disk is connected to this first disk via a reduction gear, on which a... | 11/19/1991 |
