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8990044 |
Revolution counter and method for determining the number of revolutions of a shaft
A revolution counter including sensors, which generate position values that define an angular position of a shaft, and a determination unit that receives the position values and generates decision... |
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8983792 |
Indoor testing device for a plurality of rotor-containing flying objects
An indoor testing device for multiple rotor-containing flying objects including a main support having a plurality of linking members, a plurality of mechanical arms, a plurality of trays, and... |
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8895911 |
Optical encoder with misalignment detection and adjustment method associated therewith
An optical encoder includes a scale having diffraction gratings formed at predetermined pitches in a measurement axis direction, a detection head relatively movable with respect to the scale, the... |
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8825440 |
Resolver signal converter and resolver signal conversion method
A resolver signal converter and a resolver signal conversion method amplify and perform analogue-digital conversion on a sine wave output from a resolver; thereafter, among frequency components of... |
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8786275 |
Transmission gear position sensor using printed circuit element
A gear position sensor employs a sliding electrical connection between arcuate conductors and flexible wiper arms held on opposite surfaces that rotate relative to each other with the movement of... |
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8779761 |
Rotation angle detecting unit
A rotation angle detecting unit includes an IC package having a magnetism detecting element, a sealing body, and leads; and a covering member having a fixing part and a supporting part, which are... |
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8779764 |
Method for producing magnetoresistive effect element, magnetic sensor, rotation-angle detection device
To provide a method which can define the direction and orientation of magnetization of a pinned layer while reducing the number of steps of forming a GMR film. The magnetization direction of the... |
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8717010 |
Magnetic position sensors, systems and methods
Magnetic position sensors, systems and methods are disclosed. In an embodiment, a position sensing system includes a magnetic field source with a dipole moment in a direction along a z-axis; and a... |
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8718974 |
Measuring apparatus and measuring system
Measuring devices each include a rotating body arranged between a wheel and a wheel hub with rotation centers aligned with each other, and an optical detector fixed to a body frame. The rotating... |
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8664943 |
Position detecting apparatus
The present invention provides a single component implementing highly precise pulse detection for rotational or liner position detecting apparatuses for jog dials and mechanical products. Focusing... |
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8618792 |
Rotation angle detection device, and rotation angle detection method
A rotation angle detection device includes: a detection portion that detects detection angle that univocally corresponds to rotation angle of a rotating body which is within a predetermined range,... |
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8478562 |
Measuring instrument
A measuring instrument includes a main body, a stylus configured to be movable in relation to the main body, an encoder for detecting the amount of displacement of the stylus relative to the main... |
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8466644 |
Motor driving circuit
First and second A/D converters perform analog/digital conversion of first and second signals of a Hall signal so as to generate third and fourth signals as digital signals. A differential... |
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8428906 |
Method and device for diagnosing a position encoder
A method for determining a mixup in the terminals of a position encoder having a position encoder motor, which is bidirectionally drivable via a plurality of terminals, so that a mixup of at least... |
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8356132 |
Position sensing system for a KVM switch
A position sensing system controls selection of channels in a KVM switch having a plurality of channels. The system has a sensor interface for receiving a sensor reading indicating a current... |
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8320814 |
Length measurement apparatus and image forming apparatus
A length measurement apparatus including: a measurement portion that measures a sheet length based on a rotational amount of a length measurement roll for a first detection period in which first... |
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8238579 |
Information processing apparatus
According to one embodiment, an information processing apparatus includes a volume operation module, a first volume controller and a second volume controller. The volume operation module includes... |
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8099256 |
Method of determining the dimensions of a mailpiece
A method of determining the dimensions of a mailpiece by means of a portable measuring device having a housing provided with an opening having a side reference surface along which the mailpiece is... |
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7856726 |
Rotary encoder and rotor machine
A rotary encoder for a rotor machine with at least one track with a pulse series for the generation of signal pulses, where a selectable reduction of the signal pulses is possible for the output,... |
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7825367 |
Rotary encoder
[Problems to be Solved] To provide a rotary encoder capable of carrying out self-calibration for a horizontal encoder as well as a vertical encoder without requiring special equipment and simply... |
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7818091 |
Process and device for determining the position and the orientation of an image reception means
A process and a device are provided for determining the pose as the entirety of the position and the orientation of an image reception device. The process is characterized in that the pose of the... |
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7797127 |
Method for determining two pseudo-sinusoidal signals in quadrature
A method for determining two pseudo-sinusoidal signals in quadrature from a pseudo-sinusoidal signal transmitted by an encoder is provided. The method using a sensor arranged within reading... |
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7590467 |
Spindle system, apparatus, and methods for applying spindle apparatus
A system, apparatus and method collects data on rolled product usage at a dispensing location by monitoring the amount of product pulled or removed from a roll. A spindle assembly may be... |
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7590505 |
Manufacturable micropositioning system employing sensor target
Embodiments of the present invention relate to systems and methods of position sensing that use a sensing target with a pattern of features thereupon, and to positioning modules and systems that... |
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7502703 |
Calibration of the fundamental and harmonic once-around velocity variations of encoded wheels
A method of calibrating once-around and harmonic errors of encoded nips is provided. An encoder with an index pulse is used to measure the velocity and rotation of the driven wheel or idler. The... |
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7418361 |
Method of correcting speed of encoder and apparatus therefor
A method of correcting the speed of an encoder and an apparatus therefor are provided. The method includes the steps of detecting an electrical signal corresponding to a driving speed of a motor,... |
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7389200 |
Incremental encoding and decoding apparatus and method
An incremental encoding and decoding apparatus and method are provided. The incremental encoding and decoding apparatus comprises current converters, which respectively receive the pair of analog... |
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7289932 |
Angular position, speed and direction encoding of a rotating member
A spatial detection apparatus comprising a rotating member having a predetermined number of teeth angularly spaced about its circumference at predetermined distances to form a bit pattern; at... |
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7219036 |
Method for balancing an article for rotation
A method for statistically analyzing the operation of a machine for balancing articles for rotation so as to reduce measurement errors and thereby enhance productivity and quality including the... |
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7143518 |
Angle detector with self-calibration capability
An angle detector with self-calibration capability has a number of first scale read heads and one second scale read head around the periphery of a single scale disk and includes means for... |
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7106054 |
Device for sensing a rotary member such as a water meter turbine
A device for sensing the rotation of a member rotating about an axis XX′ comprises m proximity sensors situated in a plane perpendicular to the axis XX′ and in m radial directions, m being an... |
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7047153 |
Method and apparatus for improved inspection classification of attributes of a workpiece
An apparatus for detecting the probable existence, location, and type of defects in a workpiece is described. The apparatus includes a sensor subsystem, an optimizer, a control subsystem, and a... |
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7009360 |
Method for controlling SRM switching angle by analog encoder system
Disclosed is a method for controlling an SRM (Switched Reluctance Motor) switching angle by an analog encoder system that can perform a precise control of the switching angle of the SRM by... |
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6931312 |
Detection apparatus for steering angle in vehicle
Disclosed is an apparatus for detecting steering angle in vehicle, such that the size of the apparatus for detecting steering angle in vehicle using gears and magneto resistive sensors, could be... |
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6928386 |
High-resolution optical encoder with phased-array photodetectors
Embodiments of high-resolution optical encoders having phased-array photodetectors and integrated on semiconductor chips. Emitters, detectors, and encoders disks are described which can be easily... |
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6895296 |
Spindle system, apparatus, and methods for applying spindle apparatus
A system, apparatus and method is shown for collecting data on rolled product usage at a dispensing location by monitoring the amount of product pulled or removed from a roll. In the invention, a... |
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6853948 |
Using conductive nipped rollers to measure media length
Representative embodiments provide for an imaging apparatus including a controller, a first imaging engine and a second imaging engine, each coupled with the controller and configured to form... |
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6807512 |
Node identification by displacement
A method of identifying a node of an arrangement that includes a plurality of movable parts, the method including moving only one of a plurality of movable parts of an arrangement, detecting the... |
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6778939 |
Rotational angle detector which prevents controlled system from being improperly controlled
A rotational angle detector which comprises: a rotational angle detecting section which detects an angle detection signal correspondent to a rotational state of a rotor in a short cycle and feeds... |
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6687647 |
Rotation-angle detecting device capable of precisely detecting absolute angle
The absolute angle of the rotation angle is detected on the basis of a first detection signal including sawtooth continuous pulses and a second detection signal that rises stepwise. The second... |
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6611790 |
Measuring device for the contactless measurement of an angle of rotation
A measuring instrument for contactless detection of an angle of rotation γ is comprised of a supporting plate (14) made of soft magnetic material, which serves as a rotor. Two segments (16, 17)... |
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6580066 |
Measurement signal generating circuit for linear scale
A measurement signal generating circuit for a linear scale capable of increasing an Signal-to-Noise (S/N) ratio, wherein S stands for Corona signal strength, and N for noise strength ratio of a... |
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6577985 |
Scalable code absolute logic function (SCALF) encoder
An inventive encoding system that expects, accepts and interprets both normal and abnormal states of a sensor array, and that preferably further recognizes a zero state as a malfunction. The... |
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6567033 |
Analog angular coder
An analog angle encoder is provided having a resistor track and a wiper contact associated with the resistor track, a conductor track concentric with the resistor track, wherein one end of the... |
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6564168 |
High-resolution optical encoder with phased-array photodetectors
Embodiments of high-resolution optical encoders having phased-array photodetectors and integrated on semiconductor chips. Emitters, detectors, and encoders disks are described which can be easily... |
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6556946 |
Linear position sensor
Apparatus and methods for determining a linear position of a moveable member having a code disposed thereupon. The code includes a succession of data fields having at least n characters and... |
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6496786 |
Method and apparatus for measuring a frequency datum
An improved method, for obtaining a datum concerning the rotation speed (n) of a rotating object, such as a motor rotor (32), offers high precision. Typically, the motor has a sensor (61) which... |
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6408252 |
Calibration system and displacement measurement device
An improved system (20) for the calibration of a robot system. The system (20) comprising a linear displacement measurement device (32) in conjunction with a robot calibration system. The linear... |
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5943639 |
Displacement detection apparatus including an error correction system
A displacement detecting apparatus includes an error correcting circuit through which a pair of sine wave signals detected by a detecting head unit are corrected. A signal detecting circuit... |
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5878381 |
System and method for collecting data on tissue consumption
A system and method for collecting data on individual and aggregate use of toilet tissue or other types of rolled absorbent paper in a public washroom includes a sensing system for sensing one or... |