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Dr. Johannes Heidenhain GmbH Patents
Assignee:
Dr. Johannes Heidenhain GmbH
Address:
Traunreut, DE
No. of patents:
493
Patents:


1 2 3 4 5 6 7 8 9 10


Patent Number Title Of Patent Date Issued
RE40676 Scanner unit for an optical position measuring device March 24, 2009
A scanning unit for an optical position measuring device, which is suited for optically scanning a scale graduation, to produce positionally dependent scanning signals on the basis of scale graduation. The scanning unit includes a carrier element, at least one optoelectronic component,
D539678 Digital readout device April 3, 2007
D332272 Digital readout January 5, 1993
D282460 Electronic hand wheel for controlling the operating components of a machine or the like February 4, 1986
D276320 Numerical counter display unit November 13, 1984
D275480 Programmable controller front panel September 11, 1984
7603399 Method and device for forming noise-filtered output values from input values encumbered with noi October 13, 2009
A method for noise filtering and a noise filter are for the filtering of override signals in a numerical control system. If an input value change condition is present, an accumulator is reset and an input value is set as the new output value of noise filter. If a noise detection conditio
7596880 Scanning unit of an optical position measuring device and optical position measuring device October 6, 2009
A scanning unit including a light source for illuminating a scale by a light beam and a detector for detecting the light beam which has been modulated by the scale as a function of a relative position between two objects. An inner chamber of the scanning unit in which the light beam
7591080 Securing device for transporting and mounting a measurement instrument September 22, 2009
A securing system for transporting and mounting a measuring instrument for the determination of a position of two components which are movable in relation to each other. The securing system including a securing device and a support body having a guide track and supporting a linearly
7586352 Converter having a time-delay circuit for PWM signals September 8, 2009
A converter includes a time-delay circuit for a PWM signal, applied to input of the time-delay circuit, by which rising edges of the PWM signal are delayed by an ON delay and falling edges of the PWM signal are delayed by an OFF delay, in order to form a drive signal, available at th
7573581 Position-measuring device August 11, 2009
A position-measuring device is for measuring the position of two objects that are movable relative to one another. The device includes a measuring graduation, which is connected to one of the two objects, as well as at least one scanning system for scanning the measuring graduation, whic
7549234 Method for mounting a scale on a support and arrangement with a support and a scale June 23, 2009
A measuring arrangement including a support and a scale having a measuring graduation, wherein the scale is fixed on the support by a mounting force generated via electrostatic clamping.
7546690 Probe system and method for operating a probe system June 16, 2009
A probe system includes a probe head and a transceiver element. The probe head has a feeler and a sensor element. Moreover, the probe head is able to be transferred from a passive state to an active state, a sensor signal being able to be generated by the sensor element in the active
7542863 Position measuring system June 2, 2009
A position-measuring system is for measuring the position of an object, movable in several degrees of freedom, relative to a stationary object. The position-measuring system includes at least one measuring graduation that is joined to one of the objects, as well as a plurality of scannin
7542149 Optics system for an interferometer that uses a measuring mirror, a reference mirror and a beam June 2, 2009
An optical assembly of an interferometer that includes a beam splitter for dividing the beams emitted by a radiation source into at least one measuring and one reference beam and at least one measuring and one reference mirror, on which the measuring and the reference beams impinge,
7535729 Optoelectronic system and method for its manufacture May 19, 2009
An optoelectronic system includes a printed circuit board having a ground pad and a bond pad as well as an optoelectronic element. The optoelectronic element is electrically connected to the bond pad via a bonding wire and is additionally fastened to the ground pad by a soldering con
7534993 Position-measuring device May 19, 2009
A position-measuring device for measuring linear and/or angular positions includes at least two measuring standards on which at least one code track is applied, and includes a scanning unit for scanning the code tracks. The measuring standards are positioned with respect to each other
7529068 Protective circuit for a frequency converter May 5, 2009
The voltage of the intermediate circuit of a frequency converter is monitored, while the intermediate circuit is charged via charging resistors. When the voltage has not reached at least a reference voltage during a specific time constant, the charging process is interrupted prematur
7525113 Optical scanning unit and method for mounting the same April 28, 2009
An optical scanning unit of a position measuring system for measuring a relative position of a first machine element with respect to a second machine element in a measuring direction. The optical scanning unit includes a support of a scanning grating attached to the first machine ele
7518157 Optoelectronic component assembly April 14, 2009
Optoelectronic component assemblies include a carrier element having a recess, the recess having at least one stepped supporting surface in the region of its periphery at a defined height between the bottom of the recess and the top edge of the recess. Arranged above the optoelectronic
7516672 Probe including pressure sensitive sensors April 14, 2009
A probe includes a sensor having a pressure-sensitive surface, electrical signals being producible by the sensor when pressure forces are acting that have a directional component orthogonal to the pressure-sensitive surface. The probe includes a probe element, which is supported in a
7516561 Optical position measuring arrangement April 14, 2009
An optical position measuring arrangement for detecting the position of a first object and a second object which are movable in relation to each other in a measuring direction. The optical position measuring arrangement including a scale which is connected with the first object, the
7507949 Positioning device having a shaft axially movable via a ring diaphragm March 24, 2009
A positioning device includes a housing and a shaft that is able to swivel relative to the housing and at one end of which an element to be positioned is attachable. The positioning device further includes a roller-bearing unit for supporting the shaft with respect to the housing, a
7500320 Position measuring arrangement and procedure for the assembly of a position measuring arrangemen March 10, 2009
A method for assembling a position measuring arrangement for measuring a relative position of a first object with respect to a second object, wherein the position measuring arrangement includes a first unit movable in relation to a second unit of the position measuring arrangement, the
7486182 Electronic intermediate module February 3, 2009
An electronic intermediate module for acquiring data from at least one peripheral unit, and for transmitting the acquired data to a position measuring device, the electronic intermediate module including a data acquisition interface for a data transmission connection which is designe
7475489 Scanning system of a position measuring device January 13, 2009
A scanning system of a position measuring device for photo-electric scanning of a measuring graduation, the scanning system including a support carrying measuring components, an adapter including a scanning graduation in a graduation plane and a holder that holds the support on the a
7474511 Voice-coil motor and positioning device or servo-track writer including a voice-coil motor January 6, 2009
A voice-coil motor includes a stator and a rotor, which is pivoted about a swivel axis, with respect to the stator. The rotor and/or the stator has a printed circuit board that includes at least one circuit-board conductor, and the at least one circuit-board conductor is arranged such
7473886 Position-measuring device January 6, 2009
In a position-measuring device for acquiring the relative position of a scanning unit and a reflection measuring graduation movable relative thereto in at least one measuring direction, the scanning unit includes a light source and a detector arrangement in a detection plane. In a first
7471397 Position-measuring device December 30, 2008
In a position-measuring device for recording the relative position of a scanning unit and a measuring graduation that is movable with respect to the latter in at least one measuring direction, the scanning unit includes a plurality of grating structures as well as at least one reflec
7470890 Field-modulating angular position measuring device having a scanning distance determinable in ac December 30, 2008
A field-modulating angular position measuring device includes a scanning device, a measuring graduation, and evaluation electronics, the scanning device and the measuring graduation being arranged at a scanning distance rotatably relative to each other, and angle-dependent output signals
7469478 Coupling and angular position measuring device using the coupling December 30, 2008
A coupling is for the connection, that is radially elastic but torsion resistant, of two component parts. The coupling includes base elements and a plurality of tabs formed integrally with the base elements at node areas. Each tab has two support points that are at a distance from one
7464484 Probe head December 16, 2008
A probe head includes a stationary component and pressure-sensitive sensors, the sensors being stationary relative to the fixed component, and a deflectable probe element. The probe element has a longitudinal axis, a first contact point and a second contact point. Because of contact
7464483 Probe head December 16, 2008
A probe head includes a feeler, a sensor unit, a CPU, a transmitting stage and a producer of electrical energy for supplying energy to the sensor unit, to the CPU and to the transmitting stage. An electrical signal is triggerable by the sensor unit in response to a deflection of the feel
7448821 Arrangement for connecting a tubular element to a body extending into the same November 11, 2008
An arrangement for connecting a tubular element to a body extending into the same using a tensioning ring, which, via its inner surface, embraces the outer wall of the tubular element, extends axially along the tubular element, and applies clamping forces thereto such that the tubular
7446305 Angle-measuring instrument having a spacer for positioning a cap relative to a printed circuit b November 4, 2008
An angle-measuring instrument including a cap defining an opening and a base body that is covered by the cap. A printed circuit board positioned on the base body and on which an electrical coupling element is fixed in place. A spacer that aids in positioning the cap in such a way relativ
7444202 Method for smoothing polylines in NC programs October 28, 2008
In a method for smoothing polylines in NC programs, the coordinates of points which, connected by linear segments, represent an original polyline, are shifted in a geometrical filter unit such that a resulting polyline, made up of coordinates of points, is smoothed as compared to the
7426790 Method for initializing a position-measuring system September 23, 2008
A method is for initializing a position-measuring system for an object movable in at least two degrees of freedom relative to a measuring frame. The position-measuring system includes one position-measuring device per degree of freedom, including a scale having an incremental track for
7423768 Scanning unit for a position measuring system for the optical scanning of a scale and position m September 9, 2008
A scanning unit for a position measuring system for the optical scanning of a scale, the scanning unit including a light source for transmitting light in a direction toward a section of a scale and a detector for receiving light modified by the scale. A lens arrangement placed in front
7414736 Position measuring arrangement and method for controlling scanning signals of the position measu August 19, 2008
A method for controlling a scanning signal of a light-electric position measuring arrangement, the method includes in a first mode of operation providing the scanning signal to a control device and the control device comparing an amplitude of the scanning signal with a predetermined leve
7408267 Position measuring device August 5, 2008
In a position measuring device in which data, which requires buffering, may be held without accommodating a high-capacitance capacitor in the inside of the encoder, a backup current source may be exchanged while the circuits required for the operating capability state remain operable. In
7404259 Optical position measuring instrument July 29, 2008
A position measuring instrument for detecting a relative position, the position measuring instrument including a scale having a measuring graduation extending in a measuring direction and a scanning unit that can be moved in the measuring direction in relation to the scale so as to g
7400990 Method for performing a function test of a position measuring system and position measuring syst July 15, 2008
A method for performing a functional test of a position measuring system, which in the course of scanning a scale by a position measuring unit generates position values. The method includes generating a control value in the position measuring system, the control value having a defined
7397393 Encoder count error detection circuitry and encoder count error detection method July 8, 2008
To provide encoder count error detection circuitry and an encoder count error detection method capable of realizing a highly reliable encoder by providing detection of the count errors of count signals used to measure displacement, an encoder count error detection circuitry and detection
7395178 Measuring system and method for the functional monitoring thereof July 1, 2008
A measuring system includes a measuring device, another device and a device configured to transmit data enabling bits of data to be transmitted between the measuring device and the other device. The measuring device also includes a signal monitoring circuit and a switch element. The
7392596 Probe head July 1, 2008
A probe head includes sensors having, in each instance, a pressure-sensitive surface, electrical signal being producible by the sensors when pressure forces are acting. Furthermore, the probe head has mechanical transmission elements and a holding element for positioning the transmis
7392588 Rotary encoder July 1, 2008
A rotary encoder includes two component groups that are rotatably arranged relative to each other about an axis. The second component group includes a shaft having a central bore hole, a shoulder and a ridge having an outer surface, and a ring element having an inner surface and an a
7391206 Magnetic detection circuit and encoder June 24, 2008
To provide a low-cost magnetic detection circuit, in which the differential detection function accomplished by outputting differential signals may not be lost, and which may be hardly affected by temperature fluctuations and may be resistant to noise, and in which the number of magne
7389595 Position-measuring device and method for operating a position-measuring device June 24, 2008
A position-measuring device is for determining the position of two objects which are arranged displaceably with respect to each other in at least one measuring direction, and a method is for the operation of such a position-measuring device. The position-measuring device includes a m
7373852 Protected length measuring system May 20, 2008
What is described is a length measurement system and method for measuring relative movements between first and second machine parts, said measurement system comprising a sensing head and a rule sensed by it, said sensing head being securely mountable on the first machine part and sai
7369063 Encoder signal processing circuit including a direction determining/counting unit May 6, 2008
An encoder signal processing circuit includes: a plurality of detectors adapted to generate signals with different phases; a switching circuit adapted to alternatively select and output a signal from the detectors; and a waveform shaping circuit adapted to shape waveforms of output s
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