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Patent No. 5307162

Cloaking System Using Optoelectronically Controlled Camouflage

A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.

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Assignee: Johannes Heidenhain GmbH


Location: Traunreut, DE
No. of patents: 92

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NumberTitleIssue Date
7896552Rotary encoder
A rotary encoder includes a rotary shaft that may be manufactured easily and efficiently includes a rotating magnet with a mounting precision in which variance may not occur readily. A rotary shaft includes a rotary shaft main unit with a rotating magnet mounting pa...
03/01/2011
7461464Position measuring arrangement
A position measuring arrangement that includes an arrangement of scanning elements for scanning an absolute code and a selection system for selecting scanning signals from the arrangement of scanning elements by a first method of selection and a second method of sel...
12/09/2008
7439734Rotary encoder and method for its operation
A rotary encoder includes a first group of components and a second group of components. The first group of components has a pulse wire, a detector, and a circuit configuration. The second group of components has a magnet and a code element. Upon approach of the magn...
10/21/2008
7235776Method and device for regulating a light source of a position-measuring unit
A device for regulating a light source of a position-measuring unit includes: a measuring standard device that is movable relative to the light source; and a plurality of photodetectors, the photocurrent of at least one of the photodetectors usable as a basis for fo...
06/26/2007
7219439Mounting aid for a position measuring system, as well as a scale and position measuring system with this mounting aid
A mounting aid for the alignment of a first graduation support in relation to a second graduation support of a position measuring system, the mounting aid including a spacer, which specifies a preset scanning distance between a first measuring graduation of the firs...
05/22/2007
7196319Position-measuring device
A position-measuring device for generating a measuring signal includes a track, which has an incremental graduation having a specified graduation period that extends along a measuring direction, having at least one discontinuity of the incremental graduation at a re...
03/27/2007
7154609Interferential position measuring arrangement
An interferential position measuring arrangement including a light source, which emits a beam of rays and an optical element, which converts the beam of rays emitted by the light source into an incoming beam of rays. A scale grating which splits the incoming beam of...
12/26/2006
6929396System for temperature monitoring
A system for monitoring the temperature prevailing in the stator unit of an electric drive includes a temperature sensor that is integrated into the windings of the stator unit and that transmits a temperature-dependent sensor signal. The sensor signal may be inject...
08/16/2005
6826847Position measuring system
A support body designed in accordance with a support body that includes a groove with lateral wall areas cut into a support body and a profiled unit. The profiled unit including a profiled area attached to both a cover flange with a laterally protruding contact area...
12/07/2004
6807499Control device of a position measuring system
A method for generating an indication regarding the amplitude level of at least one scanning signal of a position measuring system by determining an amplitude level of at least one scanning signal of a position measuring system, generating an amplitude signal based ...
10/19/2004
6799378Stylus
A stylus having a stem covered, at least partially, with a coating formed of an elastically or plastically deformable synthetic material. ...
10/05/2004
6801874Position measuring device and method for the start-up of a position measuring device
A position measuring device for determining the position of two elements, which are movable with respect to each other, the device including a voltage source and a scanning unit that includes one or more individual electrical components and a voltage monitoring unit...
10/05/2004
6775921Method for fabricating an annular scale
In a method for manufacturing an annular scale from a measuring strip, the ends of a measuring strip are welded together, and the shortening of the scale-division marks in the joint region caused by the welding operation is compensated by a subsequent rolling operat...
08/17/2004
6772020Arrangement for generating command variables for control loops of a numerically controlled machine
An arrangement for generating command variables for control loops of a numerically controlled machine that includes an interpolator unit for providing position set points with a defined interpolator scanning rate and a precision interpolator unit. The precision inte...
08/03/2004
6747458Method for monitoring the ground potential of a rectifier drive
A method for ground potential monitoring of a rectifier drive, having a capacitor which is connected with a voltage source via a switching device. The method including applying a test voltage between a connector of a capacitor of a rectifier drive and a mass or grou...
06/08/2004
6736009Measurement system comprising an acceleration sensor and a position sensor
A measurement system for determining acceleration and a position of an object. The measurement system includes a first sensor system for determining an acceleration of an object, the first sensor having a body with an electrically conducting measuring structure, a d...
05/18/2004
6671092Reflective measuring scale graduation and method for its manufacture
A reflective measuring scale graduation, as well as a method for manufacturing the same are described. The reflective measuring scale graduation includes first and second subdivisions having different reflection properties, which extend in at least one fi...
12/30/2003
6628004Device and method for generating a partially synthesized signal with very good dynamic quality for the acceleration of a rotor in an electrical drive mechanism
A system and method for controlling the acceleration of an armature of an electric drive by generating a high quality acceleration error correction signal z, the system comprising an accelerometer for obtaining a measured armature acceleration value b
09/30/2003
6603114Scanning head comprising a semiconductor substrate with a blind hole containing a light source
A scanning head is described, having on a side facing a scale at least one patterned photodetector, which is realized in a semiconductor substrate. The semiconductor substrate has an anisotropic blind hole that is symmetrical to the several photodetectors...
08/05/2003
6535290Optical position measuring device with a beam splitter
A position measuring device for determining the position of two parts that are movable relatively to one another in the measuring direction, which, in addition, includes the feature of enabling an absolute reference to be established during the measuremen...
03/18/2003
6507760Numerical control unit with a spatially separated input device
A method for the dependable operation of a spatially separated input device of a numerical control that includes inputting at an input device so as to generate output signals, supplying the output signals to at least two processors and checking the output...
01/14/2003
6476380Compact optical measuring module utilizing three dimensional construction
A three-dimensional measuring module includes an optical chip arranged spatially above a scanning plate and a signal processing assembly arranged above the optical chip. A housing completely encloses the optical chip and the signal processing assembly as ...
11/05/2002
6462535Eddy current sensor with a modification coil for reducing extensive heating and a method for operating such an eddy current sensor
An eddy current sensor including an arrangement for generating a first magenetic flux, which is essentially directed vertically with respect to a moved body, a detector coil for detecting an eddy field in the moved body and a second arrangement which gene...
10/08/2002
6452159Position measuring system
A position measuring system that includes a scale having an incremental track, which extends in a measuring direction and has an incremental graduation with two different graduation periods. A scanning unit moves in relation to the scale in a measuring di...
09/17/2002
6452160Angle measuring system and method for mounting an angle measuring system
An angle measuring system for measuring the angular position of two objects which are rotatable around an axis in relation to each other and includes a support with a graduation, wherein the support can be connected on a first object. A scanning device wh...
09/17/2002
6446350Method and arrangement for reducing temperature-related dimensional discrepancies in measurement systems arranged in parallel
A measurement system is described having parts that are not joined directly to the machine being measured, so that a change in the geometry of the machine cannot result in a shifting of the measurement systems relative to one another. The shifting of the ...
09/10/2002
6445965Method and arrangement for selecting safety parameters to be monitored
A method and apparatus for monitoring a safety condition of a device, receive data from a plurality of operating-state detectors of the device selected on the basis of a specific configuration of the device to signal dangerous operating conditions of the ...
09/03/2002
6421628Signal handling device
A signal handling device enables a data transmission between a plurality of position measuring devices and a master unit. The signal handling device includes a main communications port for communicating with a master unit via a data bus and a measurement ...
07/16/2002
6418396Method for operating a position measuring system and position measuring system for the purpose
A method for operating a position measuring system and a suitable position measuring system in which after the onset of measurement incremental signals relating to the relative position of two parts movable relative to one another are generated by the pos...
07/09/2002
6353397Method and device for switching between different types of output signals of a position measuring system
A method and a device for switching between different types of output signals, wherein it is possible to generate at least two different types of output signals by the position measuring system which are transmitted to an evaluating unit. Switching betwee...
03/05/2002
6293021Process for arranging an angle scale on an index disk for rotational measurement systems and an index disk with angle scale for rotational measurement systems
In a process for arranging an angle scale at an index disk for rotational measurement systems, wherein the index disk is provided with a central opening for mounting on a carrier shaft, a clamping device which deforms elastically in the radial direction w...
09/25/2001
6272766Length measuring instrument, and machine having a length measuring instrument
A length measuring instrument having a scale which can be scanned by a scanner device is provided. The scale is rotatably supported in an end region about the measurement axis X by a pivot bearing. The scanner device is guided on the scale so that rotatio...
08/14/2001
6198534Scanning unit for an optical position measuring system
A scanning unit for an optical position measuring system is disclosed which, besides periodic incremental signals, also provides at least one reference pulse signal at a defined reference position of a scale and a scanning unit which is movable relative t...
03/06/2001
6124588Process and measuring system for locating a movable object by monitoring the absolute position of the object
A method for position determination of a rotating drive element with the aid of a measuring system is indicated, which comprises an absolute and an incremental measuring subsystem. Here, following the start of a rotary movement, absolute position measurem...
09/26/2000
6105271Arrangement for accommodating a scale in a positive engagement
An arrangement for accommodating a scale (2) of a length measuring device in a positive-locking engagement has a profile base (1) and lateral profile legs (4, 5) which are connected with the profile base so as to project away from it. A scale (2) is arran...
08/22/2000
6049992Method and device for directed mounting of a measurement strip
For directed mounting of a measurement strip in a length measuring system in which two bodies are arranged so as to be displaceable relative to one another, lateral mounting elements are fastened along the length of the measurement strip at a machine part...
04/18/2000
6043482Scanning unit with a printed circuit for an optical position-measuring apparatus
A scanning unit for an optical position-measuring apparatus with a flexible printed circuit that electrically couples several electronic components. Among the components is at least one optoelectronic detector element or a radiation source that is suitabl...
03/28/2000
6043768Device and method for switching between different operating modes of a transducer
A device and method for data transmission between a transducer and a processing unit which are coupled by one or several signal transmission lines, to selectively activate at least two different modes of operation of the transducer. The device includes a ...
03/28/2000
6031224Position 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
6002126Method and structure for assembling a scanning unit in a positioning measuring instrument
The spacing distance D between a scale and a scanner element of a scanner unit is adjusted simply through the use of a positioning element which is part of the scanning unit. The scanner unit has a mounting element on which the scanner element is supporte...
12/14/1999
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