Aiming Or Positioning Adjunct (e.g., Viewfinder, Pointer, Or Positioning Aid) Patents (Class 235/462.2)
  • Publication number: 20090020610
    Abstract: A digital image capture and processing system including a housing having an imaging window; and an image formation and detection subsystem with an area-type image detection array having a periodic snap shot mode of the operation supporting the periodic occurrence of snap-shot type image acquisition cycles at a high-repetition rate, during object illumination and imaging operations. The system also includes an illumination subsystem, with a LED illumination array, for producing a field of illumination within the FOV, and illuminating the object detected in the FOV.
    Type: Application
    Filed: January 31, 2008
    Publication date: January 22, 2009
    Inventors: Anatoly Kotlarsky, Xiaoxun Zhu, Michael Veksland, Ka Man Au, Patrick Giordano, Weizhen Yan, Jie Ren, Taylor Smith, Michael V. Miraglia, C. Harry Knowles, Sudhin Mandal, Shawn De Foney, Christopher Allen, David M. Wilz, SR.
  • Patent number: 7478753
    Abstract: A system and method for performing a read operation including acquiring a series of frames of image data; processing a first frame of image data including an array of pixel data acquired while an aiming pattern was generated for determining a location L of at least one pixel of the array of pixel data that corresponds to the aiming pattern; and processing a second frame of image data acquired while the aiming pattern was not generated. The processing of the second frame of image data includes the steps of selecting at least one optical code acquired in the second frame of image data that is located at a respective location; wherein the respective location meets a predetermined condition relative to the determined location L; and providing the selected at least one optical code for further processing in accordance with the read operation.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: January 20, 2009
    Assignee: Symbol Technologies, Inc.
    Inventors: Mehul Patel, Christopher Brock, Miroslav Trajkovic, Edward Hatton, William Sackett
  • Publication number: 20080314985
    Abstract: A method of capturing processing digital images of an object, using a hand-supportable digital image capture and processing system having a trigger switch, an imaging window and a field of view (FOV) projected therethrough and onto an area-type image detection array. The method involves automatically detecting an object within the FOV, and generating a first trigger event indicative of automatic object detection within the FOV. In response to the generation of the first trigger event signal, the object targeting illumination subsystem automatically generates and projects a visible targeting illumination beam within the FOV. The human operator aligns the visible targeting illumination beam with the object in the FOV, and then manually actuates the trigger switch to generate a second trigger event signal.
    Type: Application
    Filed: December 12, 2007
    Publication date: December 25, 2008
    Inventors: Anatoly Kotlarsky, Xiaoxun Zhu, Michael Veksland, Ka Man Au, Patrick Giordano, Weizhen Yan, Jie Ren, Taylor Smith, Michael Miraglia, C. Harry Knowles, Sudhin Mandal, Shawn De Foney, Christopher Allen, David M. Witz,
  • Publication number: 20080290169
    Abstract: The disclosed bar code reader includes an auto-focusing component for rapidly producing in focus images. An imaging system makes use of an aiming pattern that impinges upon the coded indicia of a target. The imaging system includes a light monitoring pixel array and a focusing lens that is fixed with respect to the pixel array for transmitting an image of the target object onto the pixel array. The imaging system also includes a movable mirror mounted for movement along a path of travel to reflect light passing through the focusing lens onto the pixel array. A drive motor moves the mirror relative the lens to adjust a focus of an image of the object formed at the pixel array. An automatic focusing component of the imaging system analyzes the aiming pattern reflected from the target object and projected onto the pixel array by the lens.
    Type: Application
    Filed: May 25, 2007
    Publication date: November 27, 2008
    Applicant: Symbol Technologies, Inc.
    Inventors: Vladimir Gurevich, Igor Vinogradov, Tsi David Shi, Duanfeng He
  • Patent number: 7428991
    Abstract: A scanner with a two dimensional array of sensors generates an aiming pattern that is concurrently used as illumination for a segment of the array. In this manner, one-dimensional and simple two-dimensional barcodes can be quickly processed by loading and decoding only the segment of the array.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: September 30, 2008
    Assignee: Symbol Technologies, Inc.
    Inventors: Eugene Joseph, Bradley Carlson, Duanfeng He
  • Patent number: 7416127
    Abstract: A range-finding system for a portable image reader is described. The range-finding system uses a distance-measuring device, such as an ultrasonic transducer, to determine the distance between the reader and a target, such as a label containing a bar code. An operator receives a visual indication which will assist in positioning the image reader within the optimal reading range of the target. The visual indicator may include three LED's of different color or with different blinking rates which will indicate to the operator that the reader is short, long or in the optimal reading range of the reader. In one embodiment, the reader would automatically cycle through an image acquisition or decode sequence when range finder detects that the target is within the optimal reading range of the reader. In another embodiment, the visual indicator will prompt the operator to manually trigger the image acquisition or decode sequence once the reader is positioned within the optimal reading range.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: August 26, 2008
    Assignee: Psion Teklogix Systems Inc.
    Inventor: Harry Page
  • Patent number: 7413127
    Abstract: An optical reader that is configured for classifying an image. The optical reader includes an image analysis component that is configured for classifying the image by evaluating a result of attempting to locate and process a portion of the image as graphical symbol, and configured for classifying the image as an image including a graphic symbol if and when attempting to locate and process a portion of the image as graphical symbol is successful, and configured for classifying the image as an image excluding a graphic symbol if and when attempting to locate and process a portion of the image as graphical symbol is unsuccessful.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: August 19, 2008
    Assignee: Hand Held Products, Inc.
    Inventors: Michael Ehrhart, Andrew Longacre, Jr.
  • Patent number: 7407104
    Abstract: A two-dimensional code detector detecting a two-dimensional code including a plurality of position identifying patterns and an information pattern and generating control information for an object provided with the two-dimensional code, the two-dimensional code detector includes: an image input unit which inputs an acquired image obtained by an image pickup of the object; a pattern detection unit which detects position identifying patterns within the acquired image; a position/posture calculation unit which calculates position/posture information indicating a position and posture of the two-dimensional code in a three-dimensional space based on a two-dimensional position of the position identifying patterns detected by the pattern detection unit; a decoding device which decodes the information pattern; and a control information generating unit which generates the control information based on the decoded information decoded by the decoding device and the position/posture information calculated by the position/p
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: August 5, 2008
    Assignee: Honda Motor Co., Ltd.
    Inventor: Chiaki Aoyama
  • Patent number: 7398923
    Abstract: A method, system and computer program product for detecting false purchases is disclosed. The method includes detecting a motion across a product identifier in a self-service terminal and monitoring for a product identifier. In response to failing to detect the product identifier, an alert signal is transmitted.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: July 15, 2008
    Assignee: International Business Machines Corporation
    Inventors: Phuc Ky Do, Justin Monroe Pierce
  • Patent number: 7395970
    Abstract: A bar code scanning system and method for reading and processing bar code symbology uses a scanning station installed above the check-out stand and a receiving station at some distance away from the scanning station. The scanning station projects light onto a surface of the check-out stand. The projected light can have a well defined border indicating where a user should place items to be scanned. Alternatively, a pattern coincident with the projected light can be projected onto the surface and which includes a target indicating where items should be placed for scanning. Light reflected by items in the target region is processed to decode optical symbology on the item and produce a signal that is representative of said sensed symbology. Information about the scanned item can be processed and displayed by the receiving station for use in, e.g., a point-of-sale transaction.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: July 8, 2008
    Assignee: Symbol Technologies, Inc.
    Inventors: Paul Poloniewicz, Mehul Patel, Sundeep Kumar, Joseph Cai, Duanfeng He
  • Patent number: 7392951
    Abstract: A reader such as a barcode reader identifies at least one potential target such as a barcode symbol in its field-of-view, and projects or transmits an indicator toward or proximate the potential target containing information about the respective potential target. Such information may include which target is currently active, the symbology in which the target is encoded, the relative position of the reader with respect to the target, the ability of the reader to decode the target, and/or ranked or sorted order information regarding the target and neighboring targets. The reader may rank, sort, prioritize or otherwise determine order based on various parameters, including symbology, position in field-of-view, size, etc., and may base such on past history of the reader and/or user, and may weight such.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: July 1, 2008
    Assignee: Intermec IP Corp.
    Inventors: Jim T. Ray, Robert A. Kohtz, Michael Dant, Jeffrey M. Hunt
  • Patent number: 7389929
    Abstract: An indicia decoding device can have an image sensor and a laser diode assembly configured to project laser light onto a substrate. When a trigger signal is received by the indicia decoding device, the device can calculate a delay and enable the laser diode assembly if a delay threshold is satisfied. The indicia decoding device, in one embodiment, can include a hand held housing and an imaging module carrying the image sensor.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: June 24, 2008
    Assignee: Hand Held Products, Inc.
    Inventors: William H. Havens, Robert J. Hennick, John Izzo, Michael D. Robinson
  • Patent number: 7380722
    Abstract: A pointing device having a laser in a handheld housing is disclosed. The laser generates a light beam that exits the housing. A beam steering assembly causes the light beam to move relative to the housing. The pointer includes a housing orientation sensor that measures the orientation of the housing. A controller operates the beam steering assembly to compensate for changes in the housing orientation. Embodiments based on housing orientation sensors constructed from a gyroscope and a camera are described. In addition to stabilizing the light beam location, embodiments in which the beam steering assembly also causes the light beam to execute a fixed pattern can also be constructed.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: June 3, 2008
    Assignee: Avago Technologies ECBU IP Pte Ltd
    Inventors: Jonah Harley, John Stewart Wenstrand, Ken A. Nishimura
  • Patent number: 7380721
    Abstract: A barcode sensor package has an optical emitter circuit and an optical detector circuit which are formed as one or more integrated optical circuits disposed in a housing which has a reading surface and one or more apertures located between the optical emitter and detector circuits. The optical emitter circuit has an emitter die, such as a vertical cavity surface emitting laser (VCSEL), for emitting a light beam and a diffraction optical element disposed on the emitter die for focusing the light beam to a bar code. The optical detector circuit has a photodetector die, such as a phototransistor, for detecting reflective light and another diffraction optical element disposed on the photodetector die for guiding light reflected from the bar code to the detector. The diffraction optical elements are fabricated by patterning optical layers, deposited on respective emitter and detector dies, using photolithograph or a direct write process.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: June 3, 2008
    Assignee: Honeywell International Inc.
    Inventor: Wenwei Zhang
  • Patent number: 7377437
    Abstract: A targeting system for a portable image reader, which advantageously combines a number of functions including alignment, aiming, framing and range finding and provides a wide imaging range with an optimal field of view, is described. The targeting system projects a predetermined pattern having two or more components onto the target such that the components maintain a uniform distance between one another to bound the target and further vary in size as a function of their distance between the image reader and the target. The targeting system comprises targeting LED's, apertures positioned over the targeting LED's, and cylindrical lenses positioned over the apertures. With this arrangement, at least two vertical lines are projected onto a target such that the lines maintain a uniform distance apart from one another, but vary in length as a function of the reader distance from the target. This allows the operator to quickly position the imaging device over a target.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: May 27, 2008
    Assignee: Psion Teklogix Systems Inc.
    Inventors: Gregg R. Kricorissian, Xinjun Xie
  • Patent number: 7367510
    Abstract: An arrangement for determining light beam position in an electro-optical reader, image projector and like devices includes a drive for moving a scanning light beam at a scan frequency across a target as a scan line, and an electro-optical feedback assembly operatively connected to the drive, for optically detecting scan line position during beam movement, and for generating a feedback signal at the scan frequency, the feedback signal being indicative of the scan line position. A feedback coil in the drive is eliminated to avoid electromagnetic coupling between multiple coils in the drive.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: May 6, 2008
    Assignee: Symbol Technologies, Inc.
    Inventors: Yajun Li, Paul Dvorkis, Dmitriy Yavid, Frederick F. Wood, Miklos Stern, Edward Barkan, Narayan Nambudri
  • Patent number: 7350711
    Abstract: An ambient illumination shielding apparatus for an imaging-based scanner adapted to read direct part marking (DPM) bar codes. The shielding apparatus includes an illumination shield extending from a housing of the scanner and extending along at least a portion of a path of travel of an aiming pattern generated by an aiming apparatus of the scanner. The shield passes illumination within a predetermined wavelength range and impedes passage of illumination outside of the predetermined wavelength range. The predetermined wavelength range of the shield includes a wavelength range of the aiming pattern generated by the aiming apparatus. The shielding apparatus further includes a filter disposed in proximity to an imaging system of the scanner and passing illumination within a predetermined wavelength range to the pixel array and impeding the passage of illumination outside of the predetermined wavelength range.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: April 1, 2008
    Assignee: Symbol Technologies, Inc.
    Inventors: Duanfeng He, Eugene Joseph
  • Patent number: 7347375
    Abstract: An apparatus and method for reading optical information including a photosensitive system oriented to capture optical information. Also included is an optical system focusing optical information onto the photosensitive system, and a display oriented to display optical information captured by the photosensitive system. The apparatus also includes a portable, hand-held housing.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: March 25, 2008
    Assignee: Intermec IP Corp.
    Inventor: Dennis A. Durbin
  • Patent number: 7337962
    Abstract: A method, system and computer program product for detecting false purchases is disclosed. The method includes detecting a motion across a product identifier in a self-service terminal and monitoring for a product identifier. In response to failing to detect the product identifier, an alert signal is transmitted.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: March 4, 2008
    Assignee: International Business Machines Corporation
    Inventors: Phuc Ky Do, Justin Monroe Pierce
  • Patent number: 7314172
    Abstract: A terminal for marking a paper ballot which lists a plurality of candidates and which includes a marking space for each candidate which can be either hand-marked by a voter, or machine-marked by the terminal. The terminal scans the ballot to determine the ballot format, and then presents candidate selection options to the voter. Candidate selections are entered through a touch screen menu or through an audio menu and are accurately marked on the front and back sides of the ballot in marking spaces corresponding to the selected candidates. A skew correction mechanism ensures accurate marking.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: January 1, 2008
    Assignee: Automark Technical Systems, LLC
    Inventors: Joseph M. Vanek, Eugene M. Cummings
  • Patent number: 7314171
    Abstract: A terminal for marking a paper ballot which lists a plurality of candidates and which includes a marking space for each candidate which can be either hand-marked by a voter, or machine-marked by the terminal. The terminal scans the ballot to determine the ballot format, and then presents candidate selection options to the voter. Candidate selections are entered through a touch screen menu or through an audio menu and are precisely marked on the front and back sides of the ballot in marking spaces corresponding to the selected candidates by conducting an alignment scan prior to printing that collects data to compensate for ballot rotation angles due to skewing. The ballot is returned to the voter in a form which enables the voter to visually confirm that his or her selections have been marked.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: January 1, 2008
    Assignee: Automark Technical Systems, LLC
    Inventor: Eugene M. Cummings
  • Patent number: 7303131
    Abstract: An automatic focusing system for an imaging-based bar code reader. The automatic focusing system employs a two step process for moving a lens of an imaging system along its path of travel such that a sharp image of a target bar code is projected or focused onto an imaging system pixel array. The first step is laser ranging which utilizes a laser beam for range finding. Laser ranging determines a distance between the imaging system pixel array and the target bar code. Given the determined distance, the automatic focusing system moves the lens to a suitable position for imaging the target bar code. If ambient conditions prevent laser ranging from properly working, the second step is focus analysis. Focus analysis involves moving the lens in accordance with a search routine and analyzing image frames of the target object to find a suitable focus position.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: December 4, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Bradley S. Carlson, Eugene Joseph, Kefie Lu
  • Patent number: 7296743
    Abstract: 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 safety standards.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: November 20, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: James Giebel, Gary G. Schneider, Vladimir Gurevich, Mark A. Weitzner, Costanzo Difazio, Matthew Blasczak, Mark Anderson, Edward Barkan
  • Patent number: 7264166
    Abstract: Barcode imaging and laser scanning systems are disclosed having at least one processor storing barcode decoding algorithms each corresponding to a respective symbology. The at least one processor causes at least one LED and/or a projected laser beam of the barcode imaging system to blink by rapidly turning it off and on one time or several times whenever a successful decode occurs. In the laser scanning system, the at least one processor causes a projected laser beam to be blinked by turning a laser beam system off and on one time or several times whenever a successful decode occurs. The act of blinking the at least one LED and/or the projected laser beam in the barcode imaging system or the act of blinking the projected laser beam in the laser scanning system provides a visual indication to a user of a successful decode. The act of blinking can also be used to visually indicate other information to a user.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: September 4, 2007
    Assignee: Symbol Technologies, Inc.
    Inventor: Edward Barkan
  • Patent number: 7240842
    Abstract: A control circuit performs capturing of pixel signals along each scanning line when a high-speed capturing mode is selected, switches the capturing mode to a partial capturing mode when it is assumed based on the captured pixel signals that an information code is present in one image region, sets a capturing objective area at a predetermined central region to capture pixel signals in this capturing objective area and perform a decoding operation.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: July 10, 2007
    Assignee: Denso Wave Incorporated
    Inventors: Masahiro Hara, Motoaki Watabe
  • Patent number: 7210632
    Abstract: 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.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: May 1, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Yuri Gofman, Vladimir Gurevich, Mark Krichever
  • Patent number: 7201321
    Abstract: 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 self-calibration of the reader improve performance.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: April 10, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Duanfeng He, Miroslav Trajkovic
  • Patent number: 7182263
    Abstract: An arrangement for determining light beam position in an electro-optical reader, image projector and like devices includes a drive for moving a scanning light beam at a scan frequency across a target as a scan line, and an electro-optical feedback assembly operatively connected to the drive, for optically detecting scan line position during beam movement, and for generating a feedback signal at the scan frequency, the feedback signal being indicative of the scan line position. A feedback coil in the drive is eliminated to avoid electromagnetic coupling between multiple coils in the drive.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: February 27, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Yajun Li, Paul Dvorkis, Dmitriy Yavid, Frederick F. Wood, Miklos Stern, Edward Barkan, Narayan Nambudri
  • Patent number: 7182260
    Abstract: Different aiming light patterns are generated to enable an imaging reader to be pointed directly at a target by employing non-interferometric optical components that are fabricated by molding and machining techniques.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: February 27, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Vladimir Gurevich, Alexander Breytman, David Tsi Shi
  • Patent number: 7163150
    Abstract: A targeting system for a portable image reader, which advantageously combines a number of functions including alignment, aiming, framing and range finding and provides a wide imaging range with an optimal field of view, is described. The targeting system projects a predetermined pattern having two or more components onto the target such that the components maintain a uniform distance between one another to bound the target and further vary in size as a function of their distance between the image reader and the target. The targeting system comprises targeting LED's, apertures positioned over the targeting LED's, and cylindrical lenses positioned over the apertures. With this arrangement, at least two vertical lines are projected onto a target such that the lines maintain a uniform distance apart from one another, but vary in length as a function of the reader distance from the target. This allows the operator to quickly position the imaging device over a target.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: January 16, 2007
    Assignee: Psion Teklogix Systems Inc.
    Inventors: Gregg R. Kricorissian, Xinjun Xie
  • Patent number: 7121467
    Abstract: A data collection device for reading barcodes, matrix codes, acoustical tags, radio frequency identifier (RFID) tags, and other data carriers. The data collection device includes components to determine an actual position of the data collection device with respect to a target data carrier. The data collection device further includes visual indicators to indicate the determined actual position relative to an optimal position of the data collection device relative to the target data carrier. The determined actual position can be at least one of an actual distance or an actual orientation of the data collection device relative to the target data carrier.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: October 17, 2006
    Assignee: Intermec IP Corp.
    Inventors: Steven J. Winter, Rene D. Martinez
  • Patent number: 7090135
    Abstract: Three non-complex imaging arrangements are provided where in two of the imaging arrangements a moveable carrier housing at least one objective lens is provided and, in the other imaging arrangement, at least one stationary objective lens and additional optical elements are provided. Each embodiment includes at least one fixed image sensor array for imaging thereon an optical code or target, such as a one-dimensional barcode symbol, or label, marking, picture, etc. Each imaging arrangement provides an extended working range of approximately 5–102 cm. The imaging arrangements are capable of being incorporated within a barcode imager to provide a non-complex barcode imager having an extended working range which is comparable to or greater than the working ranges of conventional image-based barcode imagers.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: August 15, 2006
    Assignee: Symbol Technologies, Inc.
    Inventor: Mehul Patel
  • Patent number: 7070104
    Abstract: An article scannable by a data capture device has an informational surface and a signature section disposed on the informational surface. The signature section has a signature area and at least two alignment bars A first alignment bar is disposed at a first end of the signature section relative to writing direction. A second alignment bar is disposed at the end of the signature section opposite the first end. The first and second alignment bars are within the signature section.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: July 4, 2006
    Assignee: The United States Postal Services
    Inventors: Karen E. Schenck, Charles E. Bravo
  • Patent number: 7066391
    Abstract: A hand-supportable planar laser illumination and imaging (PLIIM) based camera system for producing digital linear images of a object within a working range, wherein the digital linear images contain pixels having a substantially uniform aspect-ratio independent of the measured relative velocity of the object while the PLIIM based camera system is manually moved (e.g. swept) past the object during illumination and imaging operations. The hand-supportable PLIIM based camera system comprises an object velocity measurement subsystem mounted within its hand-supportable housing, for determining the velocity of the object relative to the hand-supportable housing and generating object velocity data indicative of the determined velocity of the object. Also, a camera control computer is mounted within the hand-supportable housing, for controlling the operation of the PLIIM-based linear imaging subsystem, in automatic response to object velocity data generated by the object velocity measurement subsystem.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: June 27, 2006
    Assignee: Metrologic Instruments, Inc.
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Sankar Ghosh
  • Patent number: 7040540
    Abstract: A code symbol reading device includes a portable housing that contains a source of optical energy. This optical energy is projected into a scan field external to the housing and is incident upon a code symbol situated on an object located within the scan field. Optical energy reflected off the code symbol is detected within the housing to produce scan data that is indicative of the detected optical energy. The scan data is processed to detect and decode the code symbol and to produce symbol character data that are representative of the decoded code symbol. A data packet utilizing the symbol character data is constructed and then used to modulate an electromagnetic carrier sign that is transmitted to a base unit. At the base unit, the carrier signal is demodulated and the data packet is recovered. The received data packet is processed to recover the symbol character data, and an acknowledgment signal is generated to acknowledge the receipt of the symbol character data at the base unit.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: May 9, 2006
    Assignee: Metrologic Instruments, Inc.
    Inventors: Carl H. Knowles, George B. Rockstein, David M. Wilz, Sr., Stephen J. Colavito, Gennady Germaine
  • Patent number: 7021542
    Abstract: An imaging and an illuminating engine is provided for an optical code reader to image and illuminate remote target indicia. The engine includes an image sensor for receiving reflected illumination from the remote indicia and at least two illumination assemblies for providing illumination of the remote indicia. Each illumination assembly is capable of providing a number of different outputs, such as light having different wavelengths or different output durations. A transmissive, optical element overlays the engine for preventing light generated by the at least two illumination assemblies from reflecting back towards the image sensor. The imaging engine is an integrated circuit package for easily inserted and interfacing within an optical code reader as a plug-and-play component.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: April 4, 2006
    Assignee: Symbol Technologies, Inc.
    Inventors: Mehul Patel, David Tsi Shi, Thomas D. Bianculli, Chunyu Zhao
  • Patent number: 7014114
    Abstract: External lighting on a data collection terminal provides additional illumination in which to capture an image of an optical code to be electro-optically read by the terminal.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: March 21, 2006
    Assignee: Symbol Technologies, Inc.
    Inventor: Mitchell H. Maiman
  • Patent number: 7007848
    Abstract: A green laser beam is generated and is focused and shaped with an asymmetrical beam cross-section in an electro-optical reader for reading indicia. The green laser beam is also used to illuminate an aiming spot or pattern on the indicia prior to reading.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: March 7, 2006
    Assignee: Symbol Technologies, Inc.
    Inventor: Yajun Li
  • Patent number: 6877664
    Abstract: A device for the aiming and the visual indication of a reading area of a coded information reader includes an emitter which emits a preferably collimated light beam towards a reading area of a coded information reader, as well as a refractive optical element. The refractive optical element deflects at least one first portion of the light beam so as to generate at least two different beam portions active on at least two different zones of the reading area along at least two different optical paths. The refractive optical element includes opposed first and second faces which respectively collect the light beam and project the at least two beam portions onto the reading area. The second face includes at least one (preferably more than one) first surface portion inclined by a predetermined angle ? with respect to the first face and adapted to deflect the at least one first light beam portion by a predetermined deflection angle ? with respect to the optical axis Z.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: April 12, 2005
    Assignee: Datalogic S.p.A.
    Inventor: Guido M. Oliva
  • Patent number: 6866198
    Abstract: The operating environment of a moving laser beam in a flying spot, electro-optical reader is simulated in a solid-state, sensor-based imaging reader by turning a visible line produced by a light emitting diode on and off prior to capturing a two-dimensional image of a target.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: March 15, 2005
    Assignee: Symbol Technologies, Inc.
    Inventors: Mehul Patel, Walter Preuss, Paul Dvorkis
  • Patent number: 6834805
    Abstract: A multiple working range scanner includes a collection mirror which is segmented, with each segment having differing optical properties, such as focal length, optical axis, and so on. Differing segments or combinations of segments deal with reflected light received at differing working ranges, and direct it to a photodetector. In another embodiment, beam shaping may be applied to an astigmatic laser beam, for example by means of a part-concave mirror, to create an x waist in the beam which is further from the scanner than the y waist. This provides enhanced performance when the scanner is used on a bar code symbol which is not accurately aligned. In order to provide improved optical alignment within a bar code scanner, the collection mirror may be adjustable both in the x direction and in the y direction.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: December 28, 2004
    Assignee: Symbol Technologies, Inc.
    Inventors: Paul Dvorkis, Edward Barkan, Howard Shepard, David Tsi, Mark Drzymala, Harold Charych, Raj Bridgelall
  • Patent number: 6832725
    Abstract: An imaging module in one embodiment includes at least one multiple color emitting light source comprising a plurality of different colored LED dies each independently driveable so that the overall color emitted by the light source can be controlled and varied. The multiple color emitting light source can be controlled so that the color emitted by the light source is optimized for imaging or reading in a present application environment of the module. Further, the module can be configured so that control of the multiple color emitting light source automatically varies depending on a sensed condition, such a color present in a field of view of the module, the distance of the module to a target, and/or a predetermined criteria being met so that feedback is provided to a user. The module in a further aspect can include illumination light sources and aiming light sources which project light in different wavelength emission bands.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: December 21, 2004
    Assignee: Hand Held Products, Inc.
    Inventors: Robert C. Gardiner, Charles P. Barber, Eric Coleman, Michael Ehrhart, Colleen P. Gannon, Robert J. Hennick, William H. Havens, Vivian L. Hunter, Melvin D. McCall, Thomas Ruhlman
  • Patent number: 6824058
    Abstract: Imaging optical code readers and imaging systems are disclosed for measuring or deriving physical parameters of objects in a field of view such as object dimensions and weights. A projected pattern and weight responsive platform maybe used in such measurements.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: November 30, 2004
    Assignee: Symbol Technologies, Inc.
    Inventors: Mehul Patel, Duanfeng He, Eugene Joseph, Paul Poloniewicz, Thomas Bianculli
  • Patent number: 6805294
    Abstract: A bar code generating apparatus includes a specimen container holder which holds a container containing a specimen, a holder conveyance device which conveys the specimen container holder, a sensor which senses that the specimen container holder is conveyed to a specific position, a conveyance temporary stop mechanism which operates based on the information output from the sensor and temporarily stops conveyance of the specimen container holder, a rotation control mechanism which rotates the specimen container holder, which stops temporarily, on an axis of the holder, an electronic camera which picks up an image of recording information on the surface of the specimen container held by the rotated specimen container holder, and a bar-coding device which codes the recording information into a bar code based on data of the picked-up image.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: October 19, 2004
    Inventor: Teruaki Itoh
  • Patent number: 6766955
    Abstract: An imaging optical code reader is adapted for use in producing video displays and for use in motion detection surveillance using video compression and narrow band width communication links. An optical system including a plane parallel plate may be employed to change the system focal distance.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: July 27, 2004
    Assignee: Symbol Technologies, Inc.
    Inventors: Mehul Patel, Duanfeng He, Eugene Joseph, Mark Correa
  • Patent number: 6766954
    Abstract: An omnidirectional optical code reader employs two or more line photo sensor arrays orientated at an angle to one another. Electrical signals from the photo sensor arrays may be converted to digital signals by circuitry located on the die of each of the line photo sensors. Code reader circuitry is located on a circuit board orientated vertically in a backwardly sloping handle of a gun-shaped housing.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: July 27, 2004
    Assignee: Symbol Technologies, Inc.
    Inventors: Edward Barkan, Mehul Patel
  • Patent number: 6758400
    Abstract: A bar code reading system comprises a first bar code label and a second bar code label. The first bar code label is positioned on an object at a first location and in a first orientation. The second bar code label is positioned on the object at a second location and in a second orientation. The first and second bar code labels each have indicia thereon representative of a label data set. Bar code reading apparatus positionable next to the object has a limited field of view such that the bar code reading apparatus reads only first and second portions of the first and second bar code labels. The bar code reading apparatus produces first and second data sets representative of the first and second portions. A data processing system operatively associated with the bar code reading apparatus combines the first and second data sets to produce a combined data set representative of the label data set.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: July 6, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kelly J Reasoner, Kristianne E Johnson, Richard Lynn Gardner, Jr.
  • Patent number: 6695209
    Abstract: An optical reader includes targeting illuminators (e.g., LEDs) which generate a predetermined illumination pattern upon a target. The optical reader captures an image of the target and processes the captured image to determine whether the target is off-pitch or skewed, by analyzing the appearance and characteristics of the predetermined illumination pattern. The illumination pattern may consist of two identical triangles adjacently located but slightly separated so as to cause the pattern to be symmetrical when the target is at perfect alignment, but having shifting characteristics when the target is off-pitch or skewed. The optical reader may use the knowledge of pitch and skew to adjust the captured image. Triggerless operation of the optical reader is provided by placing the optical reader in a cradle and stand having a base with a known target printed on or affixed thereto, within the viewpath of the optical reader.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: February 24, 2004
    Assignee: PSC Scanning, Inc.
    Inventor: Chay K. La
  • Patent number: 6688524
    Abstract: The method for reconstructing a bar code through consecutive scans comprises the following steps: a) carrying out at least one scan of the bar code; b) determining a reconstructed wave form representative of the at least one scan; c) carrying out an actual scan of the bar code; d) determining an actual wave form representative of the actual scan; e) aligning the reconstructed and actual wave forms; and f) combining the aligned wave forms by updating the reconstructed wave form with the actual wave form. The method can directly operate on the photo-sensor signal before carrying out any digitization of it.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: February 10, 2004
    Assignee: Datalogic S.p.A.
    Inventors: Marco Bottazzi, Elena Brunelli, Rinaldo Zocca
  • Patent number: 6646251
    Abstract: A tolerance-level display portion 12 is provided in a casing 11 of a head 1 of a photoelectric switch. A light reception signal output from the head 1 is transmitted through a cable 31b of a main body 2. The casing 21 of the main body 2 contains a received light amount display portion 22, a tolerance-level display portion 24, adjust switches 28 and setting switches 29. The CPU in the main body 2 calculates a ratio of a light reception signal to a threshold value to obtain a tolerance level, and applies a control signal corresponding to the obtained tolerance level to a variable power supply circuit. The variable power supply circuit applies a variable voltage, which is dependent on the control signal, through a cable 31a to the head 1. The tolerance-level display portion 12 of the head 1 displays a tolerance level on the basis of the variable voltage by turning on the tolerance-level display LEDs 12a, 12b and 12c.
    Type: Grant
    Filed: July 17, 2000
    Date of Patent: November 11, 2003
    Assignee: Keyence Corporation
    Inventor: Yasuhiro Okamoto