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"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 8141265 | Scale track A metrological scale track comprising at least first and second metrological scale track strips. The at least first and second metrological scale track strips are held in a spaced apart relationship by at least one spacer. The at least one spacer is configured to be... | 03/27/2012 |
| 8117761 | Displacement amplifier A displacement amplifier 10 comprises first and second longitudinally extending elements 12, 22, each having a free portion 14, 24 and a constrained portion 16, 26. The constrained portions 16, 26 of the first and second elements | 02/21/2012 |
| 8020310 | Measuring element comprising a track used as a material measure and corresponding measurement method carried out by means of such a measuring element A measuring element with a circular or linear track that encompasses a material measure and a number of sensors for scanning the track is disclosed. At least two scanning heads having the sensors are provided for scanning the track. The track of the measuring elemen... | 09/20/2011 |
| 8011112 | Method and apparatus for determining positions For determining positions of a support having a bar code relative to a sensor array, the position of lines in the region of the sensor array is determined at least once and a position is determined therefrom. Thereafter, at least one line of the bar code is selected... | 09/06/2011 |
| 8001700 | Scanning unit of a position measuring arrangement A scanning unit of a position measuring arrangement for scanning a measuring graduation of a scale. The scanning unit includes a base body including an interior space; wherein the base body can be installed, fixed in place, on an object to be measured, wherein the b... | 08/23/2011 |
| 7934324 | Linear scale A linear scale that is used for displacement measurement is provided. The linear scale includes a scale board, a graduation unit, and an attachment unit. The scale board is made of low expansion ceramics. The graduation unit is fixed to an upper surface of the scale... | 05/03/2011 |
| 7891112 | Guiding device with measuring scale for guiding a moveable machine element of a machine The invention relates to a guiding device (3) for guiding a displaceable machine element (1) of a machine. Said guiding device (3) in connected in a mechanically fixed manner to a machine bed (4). A material measure (6) is arranged... | 02/22/2011 |
| 7856734 | Linear measuring arrangement A linear measuring arrangement for measuring a relative position of two objects, the linear measuring arrangement including guide surfaces, a scale having a measuring graduation and a scanning carriage for scanning the measuring graduation, wherein the scanning carr... | 12/28/2010 |
| 7845092 | Linear guide unit with length measuring system A linear guide unit is provided having a guide carriage (2) that can be moved in a longitudinal direction on a guide rail (1) and a length measuring system with a measuring head (3) that cooperates with a measuring body (4) arranged paral... | 12/07/2010 |
| 7832115 | Electronic coordinatometer An electronic coordinatometer, including multiple buses, and multiple connecting plates. The bus is formed by multiple rulers connected via the connecting plates, and the rulers have the same length. The coordinatometer is not affected by environment noise or fluctu... | 11/16/2010 |
| 7788821 | Length measuring arrangement A linear measuring arrangement for measuring a relative position of two objects. The linear measuring arrangement includes a unit having a housing and a scale in the housing and a scanning unit, which can be shifted relative to the unit in a measuring direction, whe... | 09/07/2010 |
| 7765711 | Linear guiding system comprising a position measuring device Disclosed is a linear guiding system (1) comprising at least one guide rail (2), at least one guide carriage (3) that is supported on the guide rail and can be moved therealong, and a device (5) for measuring a distance traveled by the gu... | 08/03/2010 |
| 7743527 | Position detector The present invention Provides a position detector includes a scale provided with a recording medium recorded with information for position detection; a slider disposed to face the recording medium of the scale and to relatively travel along an elongate direction of... | 06/29/2010 |
| 7726038 | Guide rail with an absolute dimensional standard A guide rail for a linear bearing has a longitudinal axis, a first and second diametrically opposed lateral surface and a top lateral surface, running surfaces provided on the first and/or second lateral surfaces and extending parallel to the longitudinal axis, for ... | 06/01/2010 |
| 7707739 | Method for attaching a scale to a carrier, a scale, and carrier having a scale A scale is attached to a carrier by optically contacting. The optically contacting bonds are formed by raised surface regions of the scale set apart from each other. Additional measures, such as the provision of adhesive surfaces, provide a rigid and vibration-resis... | 05/04/2010 |
| 7654009 | Absolute value scale and absolute value calculating method A rotary absolute value scale includes a rotor in which two rotor side coil patterns provided with different pitches are laminated, and a stator in which two stator side coil patterns provided with different pitches are also laminated. A linear absolute value scale ... | 02/02/2010 |
| 7624513 | Scale and readhead system A method of calibrating a scale measurement apparatus. A scale has scale markings arranged to form an incremental pattern and at least one scale mark. A readhead has an incremental detector means which produces an output signal and a scale mark detector means for pr... | 12/01/2009 |
| 7591080 | Securing device for transporting and mounting a measurement instrument 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 supp... | 09/22/2009 |
| 7571552 | Scale reading apparatus Scale reading apparatus having a scale and readhead moveable relative to one another. The scale has a first incremental scale pattern with a fine pitch and a second incremental scale pattern with a coarse pitch. The readhead has a detector to detect each of the incr... | 08/11/2009 |
| 7549234 | Method for mounting a scale on a support and arrangement with a support and a scale 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. ... | 06/23/2009 |
| 7475489 | Scanning system of a position measuring device 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 th... | 01/13/2009 |
| 7461464 | Position 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 |
| 7451551 | Gyroscope production method and configuration of gyroscope thus produced The invention relates to a gyroscope production method and to the configuration of a gyroscope thus produced. More specifically, the invention relates to a method of producing a base (15, 35) for a scale (24, 44) on a gyroscopic ring (3, 7) belo... | 11/18/2008 |
| 7437831 | Linear guide apparatus A side seal fixing unit 24, which is made up of a U-shaped pressing member 25 which presses and holds a side seal 20 against a lubricant application member 22, a pivot shaft 26 provided at one end portion of the pressing of the pre... | 10/21/2008 |
| 7426790 | Method for initializing a position-measuring system 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 i... | 09/23/2008 |
| 7421800 | Scale reading apparatus A scale for a scale reading apparatus has a scale track with scale marks which form an incremental scale. The scale also has a set of reference marks. The scale has at least one additional track and different combinations of markers in the at least one additional tr... | 09/09/2008 |
| 7415776 | Magnetic scale A magnetic scale is disclosed wherein a magnetic member is protected with certainty to effectively enhance the durability. The magnetic scale includes a magnetic member provided between outside and inside pipe members and has magnetic graduations magnetized alternat... | 08/26/2008 |
| 7406776 | Mounting tool for linear encoders A mounting tool that includes a base extending along a first direction that is parallel to a longitudinal dimension of the base and a height gage attached to the base. The height gage includes a first leg attached to the base and extending along a second direction t... | 08/05/2008 |
| 7392588 | Rotary encoder 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 inne... | 07/01/2008 |
| 7373722 | Device for measuring package size A package measurement apparatus comprising three measurement devices, one for each dimension. Each measurement device comprises a plurality of signal receptor modules. Each module comprises a row of signal receptor, and a signal energy source. In a first calibration... | 05/20/2008 |
| 7367128 | Scale reading apparatus A rotary ring system for use in scale reading apparatus comprises a rotary ring (12), provided with scale marks on its surface and at least one intermediate member (24). The at least one intermediate member (24) is fitted between the rotary ring... | 05/06/2008 |
| 7356940 | Elastic fixture and attachment method for length measuring apparatus An elastic fixture which is employed for attaching a length measuring apparatus to an object to be measured having a different linear expansion coefficient therefrom. The elastic fixture is elastically deformable in the lengthwise direction of the length measuring a... | 04/15/2008 |
| 7354850 | Directionally controlled growth of nanowhiskers Nanowhiskers are grown in a non-preferential growth direction by regulation of nucleation conditions to inhibit growth in a preferential direction. In a preferred implementation, III-V semiconductor nanowhiskers are grown on an (001) III-V semiconductor substr... | 04/08/2008 |
| 7353608 | Multiple channel RVDT with dual load path and fail-safe mechanism An angular displacement sensor. The input shaft is supported by a housing and fixed to a main gear. A plurality of secondary gears are arranged around and meshed with the primary gear. A plurality of displacement sensors are integrally coupled with the secondary gea... | 04/08/2008 |
| 7353618 | Magnetic scale A magnetic scale includes a pipe and a polarizable magnetic member closely attached to the inner surface of the pipe so as to extend in the longitudinal direction of the pipe. The magnetic member is formed with magnetic marks provided by a plurality of N poles and S... | 04/08/2008 |
| 7347001 | Pre-mounting of a sensor What is described is a pre-mounting system for pre-mounting a structural part to an attachment surface, wherein at least two heads, respectively provided as eccentrics, are provided at the attachment surface, the structural part comprises at least one recess and can... | 03/25/2008 |
| 7346993 | Rotary scale A rotary ring for use in scale reading apparatus, comprises a flexible ring (10) which has scale markings (14) provided on a surface thereof. The rotary ring is mounted onto a machine part (22) by providing the machine part with a region of incr... | 03/25/2008 |
| 7340844 | Device for mounting a position measuring device onto a machine tool, and position measuring system A bracket set is for mounting an encoder device to a machine tool. The bracket set includes a first connector connectable to the machine tool; a first member adjustably connected to the first connector, a longitudinal axis of the first member arranged transverse to ... | 03/11/2008 |
| 7334343 | Linear guide apparatus Rolling element holding members have two holding window for holding rolling elements in rolling element running channels formed between both track faces of a rail and a slider. Further, the rolling element holding members are held between two end caps fixed opposite... | 02/26/2008 |
| 7330008 | Apparatus for sensing position of vehicle seat An apparatus for detecting a vehicle seat position is disclosed. The apparatus includes a hall sensor for detecting a target position according to a flux variation; a first power-supply unit for activating the hall sensor in an active period of a received drive-volt... | 02/12/2008 |
