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8676368 |
System and method for optimizing a production process using electromagnetic-based local positioning capabilities
A system includes a handheld tool for executing steps of a sequence within a work cell. An electromagnetic marker connected to the tool emits a magnetic field within the cell. A receptor detects... |
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8355888 |
Pedestrian navigation system and method
An on-foot pedestrian navigation module useful for pedestrian navigation when operated with at least a control unit and another on-foot pedestrian navigation module, comprising (a) at least a... |
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8139707 |
Device for counting printed products of an imbricated stream of products
A device for counting printed products of an imbricated stream includes a first measuring unit for detecting a printed product edge directed transversely of the conveying direction of the... |
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7809464 |
Registration system for sheet fed processing machines
The invention relates to a registration system for sheet fed processing machines that reduces or eliminates the need to calibrate the register and/or timing dials of such a machine. The system... |
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7673955 |
Inkjet printer correction device and method
An inkjet printer correction device and method. A correction device having a first circuit generating a first processing signal composed of a first and second pulse signal according to a first and... |
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7502137 |
Automated media selection for imposed print jobs
A method using a printing system comprising a controller programmed for rendering imposed documents given media cost considerations is described. The method includes steps of: evaluating a print... |
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7026734 |
Timing disc fixing
The invention relates to a timing disc fitting for an encoder system. It consists of a timing disc hub (1) which can be plugged to a motor shaft (2) and to which there is fixed a timing disc (3).... |
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6854455 |
Rotation angle detector, injection system and corresponding operating method
A rotation angle detector for detecting the angular position of a shaft, i.e. a camshaft or a camshaft of an internal combustion engine, includes a rotatable detector wheel coupled to the shaft.... |
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6695460 |
LED Christmas tree for drag racing starting and timing
LED Christmas tree for drag racing starting and timing having light emitting diode signal lights arranged on an upper display tier and on a lower display tier. |
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6246343 |
Increment encoder failure detection
An error detection method for use with a two channel increment encoder. The error detection method operates to detect errors over a wide range of rotational velocity of a rotating member. The... |
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6198788 |
Encoder test apparatus and method
Apparatus and method for testing an optical encoder used to determine position of a moveable member. The optical encoder supplies a first binary signal indicative of a position of the moveable... |
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6119666 |
Device for controlling a multi-cylinder internal combustion engine
A device for controlling a multi-cylinder internal combustion engine with a rotatable shaft has a transmitter wheel mountable on the rotatable shaft and having a number of uniform spaced angular... |
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6043483 |
Apparatus and method using an indexed-encoder to sense the absolute position of an object with a single set of optics
An apparatus and method for detecting the absolute position of a movable member, by monitoring the incremental and directional of movement of an indexed-encoder, coupled to the movable member, and... |
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5978436 |
Device for electronically simulating the position of a component
The device for electronically simulating a component position includes a first counter (40,42) which counts counter pulses (Zt) determined by respective occurrences of a periodic event marking... |
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5946368 |
Pedestrian traffic counting system
A counting apparatus including a sensor surface having a plurality of zone locations with pressure actuated switches which produce a contact event signal corresponding to the zone location when an... |
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5880954 |
Continous real time safety-related control system
A safety-related control system (SRCS) designed to safeguard personnel operating hazardous production equipment. The SRCS integrates the safety-related part of a machine into one homogenous system... |
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5873307 |
Control system for a printing machine
The present invention relates to a control means for a printing machine, in particular a sheet-fed offset printing machine, having a plurality of units, such as feeders, printing units, varnishing... |
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5844960 |
Synchronized voltage controlled oscillator lap counting circuit
A synchronized voltage controlled oscillator lap counting circuit includes a bearing resolver circuit having a single Hall-effect sensor element which provides differential voltage output signals... |
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5793834 |
Method for detecting position of linear stepping motor and apparatus therefor
A method for detecting the position of a linear stepping motor which includes the steps of generating a reference clock signal for detecting the position of the linear stepping motor using an... |
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5606257 |
Device for forming a square-wave signal and detecting a reference mark from a sinusoidal signal with a singularity
A device which reshapes sinusoidal signals with a singularity to generate square-wave signals and detects the singularity in an unambiguous and reliable manner. The sinusoidal pulses are reshaped... |
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5581463 |
Pay-per-use access to multiple electronic test capabilities and tester resources
A system and method for testing an electronic circuit is disclosed. The system includes a circuit board test platform having multiple electronic test capabilities and multiple hardware resources,... |
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5572018 |
Method and apparatus to detect absolute position using encoder having a counter clear signal
Rotation of a code plate fixed to a shaft of a detecting object is detected for producing a one-rotation signal and an incremental signal corresponding to a division of one revolution into a... |
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5469482 |
Spline counting mechanism
A spline counting mechanism for determining the number of splines on a shaft. The spline counting mechanism includes a plunger urged into engagement with the shaft and adapted to be rotated with... |
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5455764 |
Register control system, particularly for off-line web finishing
A register control system, particularly one that registers marks on a printed web to a function cylinder, produces proportional and integral gains each independently variable to control the take... |
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5425073 |
Analyzer circuit an inductive position sensor
The analyzer circuit includes a first oscillator producing an output signal having a first frequency depending on an inductance of an inductive position sensor having two oscillator coils... |
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5341408 |
Control system for currenty counter
A currency counter for counting currency notes withdrawn from a supply and advancing the notes one by one along a path past a density detector and a magnetic material detector to a stacker at a... |
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5331680 |
Position detecting apparatus
A position detecting apparatus comprises a motion detecting section for generating a pulse when a carriage passes each of coordinate points set in a reciprocal movement span thereof at a... |
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5323436 |
Apparatus of and method for counting a number of revolutions of a servo motor
A revolution counting circuit for performing such an operation includes a pulse multiplying unit for multiplying signal pulses generated by an encoder and a pulse dividing unit for dividing the... |
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5317614 |
Programmable electronic angular position indicator based upon engineering units
A programmable, electronic, angular position indicator, based upon engineering units, estimates the angular displacement of a rotating rotor. The angular position indicator is programmed with the... |
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5276722 |
Absolute multi-revolution encoder
A precision, high-resolution, absolute, multi-revolution encoder which allows a multi-revolution position value of a shaft to be detected with high reliability, using only a single revolution... |
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5272648 |
Method of detecting a position of a robot
There is disclosed a position detection method of a robot which provides two incremental position transducers mounted to a robot axis in interlocked relationship with each other and rotatably to... |
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5258931 |
Precision electronic absolute and relative position sensing device and method of using same
A novel position sensing device and novel method for determining position use an electronic memory to retain a look up table for calibrated position indicia on a scale. The position indicia are... |
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5210776 |
Counter circuit for controlling an absolute position of a robot system
The present invention relates to a counter circuit for counting the rotated position of the motor and controlling absolute position of the same to control an absolute position of a robot system,... |
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5202842 |
Rotational position detecting device which compensates for eccentricity of rotating object
A rotational position detecting apparatus detects the rotational position of a rotating object and compensates for an eccentricity of the rotating object. First and second sensors generate first... |
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5187724 |
Absolute position detecting device
An absolute position detecting device in which the number of revolutions of a drive shaft adapted to drive an object to be controlled is counted with a counter for detecting an absolute position... |
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5177770 |
Linear scale measuring device
A linear scale measuring device of the absolute type capable of exhibiting high resolution and accomplishing the measuring operation with high accuracy. In the device, A cycle of indented lines... |
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5170416 |
Encoder duty-cycle error correction
The present invention (50) corrects duty-cycle errors generated by imperfections in encoder scales and encoder detectors. A preferred embodiment of the invention operates by detecting successive... |
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5138639 |
Pulse position measurement type meter-driving circuit capable of improving measurement accuracy
A pulse control circuit generates latch signals in response to edges of externally-input pulses and generates a resetting signal after each of the latch signals is generated. A pulse position... |
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5138640 |
Circuit configuration for improving the resolution of successive pulsed signals over time
A circuit configuration for improving the resolution of successive pulsed signals over time includes first and second counters each having one clock input, the clock input of the first counter... |
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5127035 |
Pulse counter circuit and displacement measuring device
Disclosed is a pulse counting circuit for counting pulse signals comprising a first pulse signal generating means for generating a first pulse signal corresponding to an input signal, a counting... |
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5079539 |
Storage case for compact discs and video cassettes
A storage case comprising a case body having two or more storage parts into which CDs or recorded cassettes are inserted respectively, sensors detecting said CDs or said video cassettes taken out... |
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5079523 |
Inductive position indicator using two oscillators with periodically interchanged inductors
An inductive position indicator in particular for determining an angular position of a throttle flap of an internal combustion engine comprises an oscillator circuit, reversible oscillating... |
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5079549 |
Digital resolver with a synchronous multiple count generation
A digital resolver is provided that accepts an analog representation of an angular or linear displacement within a reticle modulation cycle of a rotatable or translatable member, and provides a... |
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5058145 |
System for determining the position of movable machine parts
A system for determining the position of movable machine parts including an incremental pulse generator for generating angular-speed pulses includes a computer. At least one counting circuit via... |
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5048063 |
Machine position detecting apparatus
A machine position detecting apparatus according to the invention detects the absolute position of a machine by a pulse coder or the like attached to a movable element. Whenever the movable... |
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5033300 |
Device for measuring displacement
A device for measuring displacement comprises a pair of sensor elements of which output voltage changes stepwise in dependency upon displacement of a measurement object, a differentiating circuit... |
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5004981 |
Detector device for simultaneously detecting both the direction and number of rotations of rotating member
A sensor for detecting a number of revolutions of a rotary shaft is provided which comprises a ring magnet secured to the outer peripheral surface of the rotary shaft, the number of revolutions of... |
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4982413 |
Method and device for evaluating signals of an incremental pulse generator
A method and device for evaluating signals of an incremental pulse generator for generating at least two mutually phase-shifted angular speed signals includes counting the angular speed signals... |
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4965816 |
Digital logic circuit for incremental encoders
A digital logic circuit for use with an incremental positioning encoder is presented. The circuit converts two quadrature pulse train signals, generated by an incremental position type encoder, to... |
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4951300 |
Precision position detection device
This invention relates to a precise position device, particularly to such device in which an insensitive zone of an absolute signal consisting of a stepped analog signal formed on the basis of the... |