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| Number | Title | Issue Date |
| 7412116 | Optical device for simultaneously generating and processing optical codes The invention relates to an optical device, apt to generate and process optical codes at least one wavelength, comprising P inputs s, with 1≦s≦P, and P≧1, and N outputs k, with 1≦k≦N and N≧1, characterized in that it is apt to simultaneously generate and... | 08/12/2008 |
| 7362242 | Optical encoder device for small-sized motor and method of producing the same A photosensor module is composed of a light-receiving element module accommodating a light-receiving element, and a light-emitting element module accommodating a light-emitting element, which modules are separate, paired components. One of the paired light-receiving... | 04/22/2008 |
| 7332711 | Photoelectric encoder, scale therefor and method for manufacturing the same A main scale 10 has protrusive grating 12 of a thin film of e.g. Cr formed on a base member 11. The base member 11 and the Cr thin film constitute a reflecting face which is set to provide the sufficient quantity of received light on a li... | 02/19/2008 |
| 7289042 | Reader for a scale marking The invention relates to a reference mark detector for use with a metrological scale or encoder (10) having a patterned reference mark rm movable relative to the reference mark detector. The detector may comprise a photodetector array (20) for detectin... | 10/30/2007 |
| 7209055 | Electrostatic particle beam deflector An electrostatic deflector for a particle beam apparatus comprises opposing deflector plates that face one another across a particle beam gap and are electrostatically chargeable. Each deflector plate comprises its own voltage driver, which has a DAC and amplifier. ... | 04/24/2007 |
| 7204137 | Thread breakage detection systems and methods A thread breakage detection apparatus comprises a light source operable to generate a light beam, an emitter in communication with the light source, the emitter operable to emit the light beam, and a receiver in communication with and disposed in facing opposition t... | 04/17/2007 |
| 7187305 | Encoder for a motor controller An encoder in a motor system measures radial movement and translational movement of a disk with a single integrated sensor disposed on a microprocessor chip. The encoder measures position information and eccentric movement of the disk by the integrated sensor. The m... | 03/06/2007 |
| 7166833 | Fiber optic remote reading encoder A system and method for determining the absolute position of a linear or rotary actuator. A code plate having a series of digital words thereon is associated with the linear or rotary actuator. Each of the digital words consists of a plurality of bits, each bit cons... | 01/23/2007 |
| 7146072 | All optical phase insensitive code responsive and code separator devices apparatus and method Exemplary embodiments of some aspects of the invention provide an optical decoding device including: a splitting device having first, second, and third, terminals; a nonlinear element; and an attenuator, wherein the second and third terminals are associated with an ... | 12/05/2006 |
| 7099070 | Multi-imager multi-source multi-use coded data source data input product Working with an information system operating an application—are an imager, a coded data source, and a computer-readable signal-bearing medium signal (FIG. 1, 11, 12, 13, 14, 15, 16, 17, 18, 21, 22, 23, 24, 25, 26, 27, 31, 32, 33, 41, 42, 43, 44, 45, 51, 52, 53,... | 08/29/2006 |
| 6980132 | Floating aperture encoder An encoder includes a housing, a light source coupled to the housing, and a light sensor coupled to the housing and positioned to receive a light beam from the light source. The encoder also includes a wheel having opaque and transmissive sections which may be posit... | 12/27/2005 |
| 6960755 | Contact sensor, and apparatus for protecting a protruding component The invention discloses a contact sensor having a movably arranged impact detection element spaced away from a stationary housing part; and having a detection system that contains a light source with an emission surface as well as a receiving element, defining a rec... | 11/01/2005 |
| 6591149 | Method for prescribing a ramp by a clock-pulse-controlled quantity In a method for prescribing an essentially linear ramp with a prescribable slope by a quantity, and which is clock-pulse-controlled and which describes the ramp by an increment per clock interval, the ramp is described by a number of regular increments an... | 07/08/2003 |
| 6529150 | Photonic analog to digital conversion based on temporal and spatial oversampling techniques A method of converting an analog signal to a digital signal includes (a) filtering the analog signal to the range 0ࣘfxࣘf.sub.B ; (b) sampling the filtered signal at a rate fS >>fN, where fS is the sampling f... | 03/04/2003 |
| 6498576 | Selective analog-to-digital conversion for a digital pixel sensor A system and method for performing low-power analog-to-digital conversion in digital imaging system utilizing a time-indexed multiple sampling technique is presented. The analog-to-digital converter is switched off when the digital image signal resulting ... | 12/24/2002 |
| 5172258 | Method and apparatus for high data rate fiber optic communication system A method and apparatus for performing optical serial-to-parallel conversion of an optical data pulse stream having a multiplicity of data pulses, wherein the data pulse stream is formatted into a series of data pulses and an associated timing pulse which ... | 12/15/1992 |
| 5103226 | Height sensor for turret stockpicker A digital height encoder on a turret stockpicker is used to determine platform height. A pair of fixed reference switches are provided, one to reset a digital height memory to a predetermined height value each time the switch transitions either on or off,... | 04/07/1992 |
| 4958072 | Remote fiber optic angular-orientation sensor using phase detection of two orthogonal oscillating polarization vectors A method for remotely detecting the angular position of a rotatable code wheel is provided by generating two sine wave modulated light beams which are orthogonally polarized with respect to each other. The beams are combined and then directed through a po... | 09/18/1990 |
| 4953933 | Optical encoder reading device Disclosed is an optical sensor readhead (10) which includes a glass substrate (14) that contains buried ion diffused optical transmission channels (12) for supplying light to and receiving reflected light from optical encoder bands (22) of an optical enco... | 09/04/1990 |
| 4851840 | Optical analog to digital converter An analog to digital converter, adapted to convert an optical analog signal to an equivalent optical digital signal being one of x optically presented digital numbers defined by an n-bit digital word, where X=2n. The optical analog signal is li... | 07/25/1989 |
| 4845496 | Electro-optical displacement sensor An electro-optical displacement sensor comprises an optical source including a plurality of optical grating lines for producing from an incident optical signal a transmitted optical signal having a spatially periodic intensity pattern. Optical sensing mea... | 07/04/1989 |
| 4833317 | Optically powered resolver An optically powered resolver for detecting an optical property of an encoder at a plurality of encoding sites on the encoder, to permit determination of the position or other state of the encoder. Each encoding site is capable of receiving an optical enc... | 05/23/1989 |
| 4829165 | Optical control systems A control system suitable for incorporating in control panels and effecting remote control of apparatus includes a light guide bus system including input and output light guides and optical switches carried on a removable optical bridge member bridging in... | 05/09/1989 |
| 4780600 | Optical displacement transducer An optical displacement sensor has an optically detectable coded track movable relative to a mask. The track is illuminated by light conducted by an optical fibre from a remote light source and the image of the track is focussed by a mirror on to the aper... | 10/25/1988 |
| 4769537 | Analog position-indicating optical encoder An analog position indicating optical encoder is provided including: an element (1) with a band (2) having a transparency which substantially is complete with respect to two wavelengths (11 and 12) but varies as a function of the ang... | 09/06/1988 |
| 4739163 | Position locating optical coder utilizing optical fiber A position locating optical coder is provided formed by a sensor which includes a reader, for reading a code carrying element a pivoting micromirror actuated under the control of the output of the reader and a self contained power supply source. A module ... | 04/19/1988 |
| 4716290 | Rotary encoder with intermittent feed means A rotary encoder includes a train of gears meshed together in a multi-stage so as to reduce the driving number successively and encoders provided with the gear shafts in desired stages in order to count the number of revolutions of a power input shaft. Th... | 12/29/1987 |
| 4687928 | Position detector A position detector for use with a code carrier which defines a position and has alternating radiation transmissive and non-transmissive regions which define a multi-bit output is disclosed. The position detector includes a photodetector array mounted on ... | 08/18/1987 |
| 4679029 | Optoelectronic rotational position sensor An apparatus is disclosed for sensing rotational or angular position of a shaft. The apparatus incorporates two light transmission paths, each having a separate photodetector providing an electrical signal in response to the intensity of received light. T... | 07/07/1987 |
| 4590469 | Color based data encoding and storage apparatus A color based data encoding and storage apparatus having an encoding unit (11), a storage unit (12) and a color encoded data transmission unit (13). The encoding unit (11) includes a plurality of colored lenses (16), each lens (16) being associated with a... | 05/20/1986 |
| 4580130 | Rotary encoder A rotary encoder used for measuring the rotational velocity, for example, of a rotating disk provided with reflecting surfaces and non-reflecting surfaces which are formed alternately on its periphery with a pitch l. The encoder includes one output optica... | 04/01/1986 |
| 4555625 | Precision drum encoder Disclosed is a highly precise encoding structure utilizing incremental or absolute encoding techniques. The drum configuration allows the use of less expensive materials and the capability to manufacture such a device in a labor-saving and therefore less ... | 11/26/1985 |
| 4500870 | Method and components for remote reading of utility meters A utility meter has a plurality of rotating shafts which have angular positions corresponding to the digits of a consumption reading. A cam is attached to that shaft which is associated with the least significant digit. The cam has a light reflecting trac... | 02/19/1985 |
| 4442423 | Optical position sensor including a specially designed encoder plate An optical position sensor for monitoring displacements of a movable body is disclosed. The sensor includes a light source transmitter, a light sensing receiver, a digital switching device, and a special encoder plate attached to a movable body. The encod... | 04/10/1984 |
| 4388613 | Optical displacement transducers An optical displacement transducer for providing a digital output representative of the displacement of a variable from a datum value comprises a light beam emitter and a light beam receiver disposed on a common optical axis, a digital encoding element co... | 06/14/1983 |
| 4356395 | Digital fiber optic sensor system A digital fiber optic sensor system utilizing a conventional n-track encoder system, but wherein the number of fiber optic paths to and from the sensor is reduced to one or two by utilizing the delay properties of optical fibers. These properties make it ... | 10/26/1982 |
| 4327362 | Meter rotor rotation optical sensor Electrical consumption registered in a watthour meter is converted into an electrical analog suitable for transmission to a remote monitoring site by reflecting light off the watthour meter rotor, the light being periodically interrupted during each rotor... | 04/27/1982 |
| 4291976 | Digital fiber optic position sensor A self-clocking digital position sensor having a main optical transmission line to which are coupled a multiplicity of branch optical transmission lines each of which is for transmitting one bit of position data. The branch transmission lines may be of un... | 09/29/1981 |
| 4240066 | Cylindrical encoder for use with fiber optics A fiber optic encoding device capable of long term reliable operation in hostile environments is disclosed. Various construction details which contribute to a compact device with high mechanical reliability are discussed. An encoder formed to a cylindrica... | 12/16/1980 |
| 4201909 | Data-transmission system and method using fiber-optical transmission For the transmission of data by way of a fiber-optical path, three-bit code words representing eight different signal levels are generated in respective signal periods 2T and are converted into pairs of ternary luminous waveforms of duration T having two ... | 05/06/1980 |
