Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8061614 | Light pipe illumination system and method A system and method is provided for illuminating a subject using a light pipe that transmits light from a source, such as an LED ring illuminator to an outlet that directs the light appropriately as either bright field illumination, dark field illumination or both. ... | 11/22/2011 |
| 8061613 | Method and apparatus for providing omnidirectional lighting in a scanning device A system and method is provided for selectively controlling the illumination, and particularly dark field illumination, applied to a symbol to be decoded, and for determining a suitable or optimized level of lighting for decoding the symbol. A ring-shaped illuminato... | 11/22/2011 |
| 8028913 | Arrangement for and method of uniformly illuminating direct part markings to be imaged and electro-optically read Performance of an imaging reader for electro-optically reading direct part markings on workpieces is enhanced by uniformly illuminating the markings. An illuminator is operative for emitting illumination light of greater and lesser intensity toward the indicia. A di... | 10/04/2011 |
| 8011584 | Graphical code readers that are configured for glare reduction A method for glare reduction may be implemented by a graphical code reader. The method may include illuminating a target area using a plurality of light sources. The method may also include capturing images of the target area using at least one image sensor. The met... | 09/06/2011 |
| 8002186 | Laser power control arrangements in electro-optical readers A laser power control arrangement and method in an electro-optical reader for reading indicia includes an energizable laser for emitting a laser beam having an output power along a path. An internal light detector, e.g., a monitor photodiode, is mounted inside the l... | 08/23/2011 |
| 7823783 | Light pipe illumination system and method A system and method is provided for illuminating a subject using a light pipe that transmits light from a source, such as an LED ring illuminator to an outlet that directs the light appropriately as either bright field illumination, dark field illumination or both. ... | 11/02/2010 |
| 7793841 | Laser illumination beam generation system employing despeckling of the laser beam using high-frequency modulation of the laser diode current and optical multiplexing of the component laser beams A laser illumination beam generation system including a laser diode (LD) for producing a laser beam in response to a diode current supplied thereto, wherein the laser beam has a central characteristic wavelength. Diode current drive circuitry generates the diode cur... | 09/14/2010 |
| 7743989 | Laser power control arrangements in electro-optical readers Laser power control arrangements interrupt power to a laser used in electro-optical readers upon detection of operating conditions not conforming to preestablished standards, and adjust power to the laser to enhance reader performance without violating prevalent saf... | 06/29/2010 |
| 7527201 | Method of forming an optical pattern, optical pattern formation system, and optical tweezer Reading light (26) is phase-modulated by a phase-modulating spatial light modulator (12), the phase-modulated reading light (26) is Fourier-transformed, and an image of the Fourier-transformed reading light is focused on an output plane (24 | 05/05/2009 |
| 7513428 | Planar laser illumination and imaging device employing laser current modulation to generate spectral components and reduce temporal coherence of laser beam, so as to achieve a reduction in speckle-pattern noise during time-averaged detection of images of objects illuminated thereby during imaging operations An imaging device including at least one imaging array and image formation optics that provide a field of view corresponding to the imaging array. At least one illumination module (which includes at least one source of coherent illumination) produces planar light il... | 04/07/2009 |
| 7464876 | Image reading device There is provided an image reading device, which is provided with an illuminating unit that illuminates an object, a reading unit that forms an image of the object based on light from the object, and an illumination prohibition unit that prohibits the illumination u... | 12/16/2008 |
| 7438236 | Contactless activation systems and methods Methods and systems for enabling contactless communications with a contactless card are disclosed. A contactless card may include a contactless interface activation mechanism that includes one or more sense contacts, a processor, and a processor-readable storage med... | 10/21/2008 |
| 7399953 | Light source control in optical pointing device An optical pointing device includes a light source configured to respond to a drive current to provide at least partially coherent light to illuminate an imaging surface to thereby generate reflected images. A navigation sensor is configured to generate digital imag... | 07/15/2008 |
| 7347376 | Apparatus and method for verifying print quality of an encoded indicium The invention is an apparatus configured to provide self-alignment in use when measuring the print quality of an encoded indicium. The apparatus is configured to exclude ambient light, and to align an encoded indicium located at a first aperture defined in a first s... | 03/25/2008 |
| 7344077 | Optical pickup control apparatus, optical pickup control method, and optical disc apparatus The present invention has been made to adequately and quickly adjust the spherical aberration and focus bias in an optical pickup. In the present invention, evaluation values are measured on a plurality of respective measurement points each determined by a combinati... | 03/18/2008 |
| 7342680 | Image reading apparatus The present invention provides an image reading apparatus capable of reading images with a sufficiently wide dynamic range. An image reading apparatus of this invention has a light source, a reading section which generates image data based on light obtained from an ... | 03/11/2008 |
| 7341188 | Position detection system, game system, and control method for position detection system A position detection system includes: a scan beam illumination section which causes a first-direction line-shaped scan beam that is parallel to the X-axis to scan in the Y-axis direction at a predetermined scanning speed, then causes a second-direction line-shaped s... | 03/11/2008 |
| 7332875 | Illumination apparatus, and an illumination head and power source device used therefore An illumination apparatus used by connecting an illumination head to a power source device, capable of supplying a rated current to individual light emitting devices of the illumination head by using a power source device of an identical rating irrespective of the s... | 02/19/2008 |
| 7317287 | Circuit for an LED array A circuit arrangement for an LED array having two or more parallel-connected LED chains (LK1, LK2, LK3), in each of which at least one LED (2) is arranged and, when there are two or more LEDs (2), the latter are connected in series... | 01/08/2008 |
| 7281311 | Method of attaching a transfer resistant RFID tag to a surface A transfer resistant RFID tag preferably includes an identification chip, a tag coil, a housing and a cap. The identification chip is electrically connected to the tag coil with two wires. A first quantity of bonding compound is applied to a surface that is slightly... | 10/16/2007 |
| 7277012 | Broad field motion detector A motion sensing system device and method which utilize dispersed ultrasonic radiation is disclosed. The system preferably comprises a low profile sensor unit configured to couple to a ceiling position. The sensor unit comprises an ultrasonic transmitter and an ultr... | 10/02/2007 |
| 7264162 | Optical adjustment of working range and beam spot size in electro-optical readers Working range and laser beam cross-section are adjusted in an electro-optical reader for reading indicia by applying control voltages to a pair of variable lenses to change the shape of a liquid therein. An aperture stop maintains a constant beam cross-section as an... | 09/04/2007 |
| 7259522 | Lighting method, lighting apparatus and components used therefor A current to light emitting devices when an application voltage is at or higher than the lower limit voltage for lighting determined by the arrangement of the light emitting devices, and an identification circuit that outputs a current identification signal in accor... | 08/21/2007 |
| 7255275 | Laser power control arrangements in electro-optical readers Laser power control arrangements interrupt power to a laser used in electro-optical readers upon detection of an over-power condition not conforming to preestablished standards to meet prevalent safety standards. ... | 08/14/2007 |
| 7243850 | Data reader for multi-mode operation A data reader and method for data reading, such as a barcode scanner, wherein the scan pattern generating optics and other features are optimized for different modes of operation. In a preferred embodiment, different patterns are projected from different apertures i... | 07/17/2007 |
| 7240840 | Optical reader and use An optical reader is provided for reading a symbol representing information having areas of different light reflectivity. The optical reader comprises a radiant energy source, a photodetector, an optical system and a decoder. The radiant energy source generates a ra... | 07/10/2007 |
| 7227640 | Photoelectric sensor A photoelectric sensor includes a light-emitting element and a light-receiving element and detects a mark on an object. Prior to the detection of the mark, a reference received light quantity level is sampled for the surface of an object not including the mark, for ... | 06/05/2007 |
| 7222794 | Optical reader applicable to plurality of uses An optical reader capable of reading a bar code in a mounted state when an article carrying the bar code passes and of reading bar codes set in array on a menu sheet in a hand-held state has been disclosed. The optical reader comprises a light source, a scanner that... | 05/29/2007 |
| 7210632 | On-axis control over scanning beam spot size and shape in electro-optical readers A cylindrical lens is axially moved along an optical axis to control a shape and size of a laser beam spot that is scanned across a symbol to be read by an electro-optical reader. ... | 05/01/2007 |
| 7209271 | Multiple beam scanning imager A display apparatus includes a scanning assembly that scans about two or more axes, typically in a raster pattern. A plurality of light sources emit light from spaced apart locations toward the scanning assembly such that the scanning assembly simultaneously scans m... | 04/24/2007 |
| 7201321 | Electro-optically reading direct part markings on workpieces by image capture Performance of an imaging reader for electro-optically reading direct part markings on workpieces is enhanced by ensuring that such markings are read in the vicinity of an ideal, focused, target plane, and by enhancing the contrast of such markings. Calibration and ... | 04/10/2007 |
| 7191950 | Portable tendering and customer service stations and related systems and method A portable tendering station includes a movable housing, a removable terminal attached to the housing for acquiring transaction information, and at least one peripheral device attached to the housing and coupled to the terminal for conveying the transaction informat... | 03/20/2007 |
| 7190126 | Daylight control system device and method A system and device for and a method of programming and controlling light fixtures is disclosed. A system in accordance with the present invention includes a stationary controller unit that is electrically coupled to the light fixtures. The stationary controller uni... | 03/13/2007 |
| 7185820 | Data acquisition apparatus A scanner device includes a body portion with an optical scanner module at a first forward end and having a keypad and display mounted on an upper surface. The handle portion extends from the body portion near the forward end and is oriented at a selected angle to c... | 03/06/2007 |
| 7184668 | System and method for protecting eye safety during operation of a fiber optic transceiver A single-chip integrated circuit, sometimes called a controller, controls operation of a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conver... | 02/27/2007 |
| 7172125 | Gain control system and method for use in electro-optical readers An intelligent gain selection circuit replaces the gain set by an automatic gain control circuit in an electro-optical reader for reading indicia, such as bar code symbols, with a larger gain where specular reflections, high contrast edges, or other noise operative ... | 02/06/2007 |
| 7164110 | Diode-based light sensors and methods The present invention provides an illumination management system that includes a first LED that outputs a first signal when exposed to a first spectrum of light, the first signal indicating an intensity of light from the first spectrum; a second LED that outputs a s... | 01/16/2007 |
| 7151788 | Laser processing device The invention relates to a laser processing device that can change the diameter of a beam spot on an object to be processed, without using a mechanism for changing a distance between a condensing lens and the object. A beam emitted from a laser beam source is conden... | 12/19/2006 |
| 7147162 | Housing for an optical reader A body portion of an optical reader has an elastomeric skirt surrounding the lateral edges thereof. The laterally spaced front edges of the skirt, which are on either side of a window through which the light is emitted and received along an optical axis, are angled ... | 12/12/2006 |
| 7143941 | Optoelectronic device and process for acquiring symbols, such as bar codes, using a two-dimensional sensor The invention relates to a device and a process for acquiring bichromatic bar codes, with a two-dimensional sensor with electronic scanning. The height Hy of the scanned portion is modified between at least two successive scanning operations. Thus, the device is or ... | 12/05/2006 |
