Pattern Mirror Detail For Nonrotating Mirror Patents (Class 235/462.37)
  • Patent number: 10650211
    Abstract: Systems and methods for establishing optimal reading conditions for a machine-readable symbol reader. A machine-readable symbol reader may selectively control reading conditions including lighting conditions (e.g., illumination pattern), focus, decoder library parameters (e.g., exposure time, gain), etc. Deep learning and optimization algorithms (e.g., greedy search algorithms) are used to autonomously learn an optimal set of reading parameters to be used for the reader in a particular application. A deep learning network (e.g., a convolutional neural network) may be used to locate machine-readable symbols in images captured by the reader, and greedy search algorithms may be used to determine a reading distance parameter and one or more illumination parameters during an autonomous learning phase of the reader.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: May 12, 2020
    Assignee: Datalogic IP Tech, S.r.l.
    Inventor: Silvio Olivastri
  • Patent number: 10120675
    Abstract: A system includes at least one data collection device connected to a corresponding data terminal via a primary communication channel; and a central connectivity point connected to each data collection device via a wireless secondary communication channel so as to communicate with the at least one data collection device without disrupting communication between the at least data collection device and the corresponding data terminal via the primary communication channel and to permit remote administration of each data collection device.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: November 6, 2018
    Assignee: Hand Held Products, Inc.
    Inventors: John A. Pettinelli, Jr., John Izzo
  • Patent number: 9753720
    Abstract: A system includes at least one data collection device connected to a corresponding data terminal via a primary communication channel; and a central connectivity point connected to each data collection device via a wireless secondary communication channel so as to communicate with the at least one data collection device without disrupting communication between the at least data collection device and the corresponding data terminal via the primary communication channel and to permit remote administration of each data collection device.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: September 5, 2017
    Assignee: Hand Held Products, Inc.
    Inventors: John A. Pettinelli, Jr., John Izzo
  • Patent number: 9332531
    Abstract: A system includes at least one data collection device, each connected to a corresponding data terminal via a primary communication channel; and a central connectivity point connected to each data collection device via a wireless secondary communication channel so as to communicate with the at least one data collection device without disrupting communication between the at least data collection device and the corresponding data terminal via the primary communication channel and to permit remote administration of each data collection device.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: May 3, 2016
    Assignee: Hand Held Products, Inc.
    Inventors: John Pettinelli, John Izzo
  • Patent number: 9033236
    Abstract: A bi-optical, dual window, point-of-transaction workstation images indicia associated with multi-sided products over a full coverage scan zone by splitting each field of view of only two imagers into three subfields that pass through each window and fill the scan zone and minimize dead areas therein. Twisting of the subfields relative to the windows is minimized so that the subfields fit fully with minimal clipping through each window. Splitting of each field of view is remotely performed well away from each imager. The imagers have lens assemblies of substantially the same optical power and are spaced from their respective windows by substantially the same distance.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: May 19, 2015
    Assignee: Symbol Technologies, Inc.
    Inventors: Mark Drzymala, Edward Barkan
  • Patent number: 8757494
    Abstract: A barcode imaging reader includes a housing, a window in the housing, and an imaging sensor having an array of photosensitive elements for capturing light passing through the window. The barcode imaging reader further includes an illumination arrangement for emitting an illumination light from the housing interior to illuminate a barcode target object spaced from the housing. The illumination arrangement includes (i) an illumination source within the housing operative to generate the illumination light during imaging capture, (ii) a first mirror having a shape of a toroidal surface with predominantly concave surface, and (iii) a second mirror having a shape of a toroidal surface with predominantly convex surface.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: June 24, 2014
    Assignee: Symbol Technologies, Inc.
    Inventor: Igor Vinogradov
  • Patent number: 8479995
    Abstract: A hybrid optical code scanner and system are presented for improving an operators scanning performance. The scanning performance is improved by providing a visual indicator to the operator that identifies the optimal location for presenting an optical code to an imaging scanner in the hybrid optical code scanner.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: July 9, 2013
    Assignee: NCR Corporation
    Inventor: David Gregerson
  • Patent number: 8141785
    Abstract: The invention relates to an optical delay module for lengthening the propagation path of a light beam comprises a first spherical mirror and a second spherical mirror, the first spherical mirror and the second spherical mirror having equal radii of curvature, the first and the second mirror being arranged on a common axis of symmetry with concave sides of the first and second mirrors being situated opposite one another at a distance from one another which corresponds to the radii of curvature of the first and second mirrors. The module also includes a coupling-in area for coupling the light beam into a space between the first and second mirrors and a coupling-out area for coupling the light beam out of the space between the first and second mirrors.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: March 27, 2012
    Assignee: Carl Zeiss Laser Optics GmbH
    Inventors: Alois Herkommer, Holger Muenz
  • Patent number: 8087588
    Abstract: A digital image capture and processing system having single printed circuit (PC) board with light transmission aperture, wherein a first linear array of visible light emitting diodes (LEDs) are mounted on the rear side of the PC board for producing a linear targeting illumination beam, and wherein a second linear array of visible light emitting diodes (LEDs) are mounted on the front side of the PC board for producing a field of visible illumination within the field of view (FOV) of the system. The linear targeting illumination beam is centrally disposed within the field of visible illumination.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: January 3, 2012
    Assignee: Metrologic Instruments, Inc.
    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: 8079523
    Abstract: The present disclosure concerns a bar code reader 10 that can both interpret bar codes and image documents. The bar code reader includes a housing including a vertical and a horizontal transparent window H, V and defining a housing interior region. As a target object is swiped or presented in relation to the transparent windows an image of the target object is captured. Cameras C1-C6 have image capture sensor arrays positioned within the housing interior region for capturing an image of an object within a camera field of view. Two specific cameras can capture the front and back images from a document such as a check 100 placed on the horizontal transparent window.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: December 20, 2011
    Assignee: Symbol Technologies, Inc.
    Inventor: Edward D. Barkan
  • Patent number: 7793842
    Abstract: An automated storage system for storing large quantities of samples in trays includes a storage compartment, a tray shuttle compartment abutting the storage compartment on one side and a plurality of independent modules on the other side. The modules perform processing of samples that are retrieved from the storage compartment by a tray shuttle, including extraction of selected samples from retrieved source trays and transfer of the selected samples into a separate, destination tray that can be further processed or removed from the system for use. The independent operation of the modules permits handling and processing to be performed simultaneously by different modules while the tray shuttle accesses additional samples within the storage compartment. In one embodiment, a vertical carousel is used to vertically align a desired tray with the tray shuttle, while the tray shuttle operates within a horizontal plane.
    Type: Grant
    Filed: October 27, 2007
    Date of Patent: September 14, 2010
    Assignee: Nexus Biosystems, Inc.
    Inventors: Robert K. Neeper, Rhett L Affleck, John E. Lillig
  • Patent number: 7780087
    Abstract: An optical system and method for data reading. In one system, a scanner includes a laser diode and a beam splitter for generating first optical beam and a second optical beam, the first optical beam being directed toward one side of a scanning optical element such as a rotating polygon mirror and to a first mirror array, the second optical beam being simultaneously directed toward a second optical element such as another side of the rotating polygon mirror and then to a second and a third mirror array. The first mirror array is configured to generate a scan pattern through a vertical window and the second and third mirror arrays are configured to generate scan patterns passing through a horizontal window. In combination, the three mirror arrays generate three sets of scan lines so as to scan five sides of a six-sided item (e.g., the bottom and all lateral sides of an object) being passed through the scan volume.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: August 24, 2010
    Assignee: Datalogic Scanning, Inc.
    Inventors: Mohan LeeLaRama Bobba, Jorge Louis Acosta, Timothy Joseph Eusterman, James W. Ring, Alexander M. McQueen
  • Patent number: 7780086
    Abstract: A plurality of solid-state imagers is mounted in a reader, such as a bi-optical, dual window, point-of-transaction workstation, for capturing images along different fields of view of diverse targets useful for customer identification, customer payment validation, operator surveillance, and coded indicia. The imagers are commonly mounted on a circuit board for joint installation at, and joint removal from, the reader for ease of serviceability.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: August 24, 2010
    Assignee: Symbol Technologies, Inc.
    Inventors: Edward Barkan, Mark Drzymala, Igor Vinogradov
  • Patent number: 7499609
    Abstract: A blocking portion is provided at an end of the mirror to prevent a light beam emitted from an input port from being transmitted to or reflected by first and second output ports. The mirror is inserted to a position where the end of the blocking portion of the mirror reaches a boundary P2? on the insertion side of an area to be blocked to obtain a permissible crosstalk value of the light beam. The mirror is removed to a position where the rear end of the blocking portion of the mirror reaches a boundary P2 on the removal side of the area to be blocked. The mirror is movably driven between the removal position and the insertion position in the optical path of a first light beam by a drive. Thus it is possible to reduce the length of the driving stroke of the mirror.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: March 3, 2009
    Assignee: Japan Aviation Electronics Industry Limited
    Inventor: Yoshichika Kato
  • Patent number: 7490774
    Abstract: A hand-supportable digital imaging-based bar code symbol reading device comprises: an IR-based object presence and range detection subsystem; a area-type image formation and detection subsystem having an image capture modes of operation; a multi-mode led-based illumination subsystem for providing a narrow-band field of illumination; an automatic light exposure measurement and illumination control subsystem; an image capturing and buffering subsystem; a image-processing bar code symbol reading subsystem; an input/output subsystem; and a system control subsystem integrated with each of the above-described subsystems.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: February 17, 2009
    Assignee: Metrologic Instruments, Inc.
    Inventors: Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Hongpeng Yu, Xi Tao, Liang Liu, Wenhua Zhang, Anatoly Kotlarsky, Sankar Ghosh, Michael Schnee, Pasqual Spatafore, Thomas Amundsen, Sung Byun, Mark Schmidt, Garrett Russell, John Bonanno, C. Harry Knowles
  • Patent number: 7419098
    Abstract: A graphical code reading apparatus is disclosed. The graphical code reading apparatus is able to read graphical codes on reflective and curved reflective surfaces. The graphical code reading apparatus includes a graphical code reader having an illumination source such as LEDs and a detector such as an imager. The graphical code reading apparatus also includes a light scattering chamber that is coupled to the graphical code reader. The light scattering chamber may have two openings, namely a first opening for receiving the graphical code reader and a second opening for placement adjacent the graphical code. The light scattering chamber may be tapered from the first opening toward the second opening. An interior surface of the light scattering chamber is capable of scattering light because it may be an irregularly uneven reflective surface. The light impinges the reflective surface at multiple angles of incidence upon exiting the light scattering chamber.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: September 2, 2008
    Assignee: The Code Corporation
    Inventors: Ryan Hyde, George Powell
  • Patent number: 7380719
    Abstract: A barcode scanner with configurable video modes which enhances readability of a wide range of barcode types. The barcode scanner includes a video circuit, and a configuration circuit for altering operating characteristics of the video circuit during a scanning operation for reading a plurality of different types of barcodes.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: June 3, 2008
    Assignee: NCR Corporation
    Inventor: David L. Gregerson
  • 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: 7270270
    Abstract: A optical scanner control method and a optical scanner capable of positioning a mirror at a high speed independently of a rocking angle, and a laser machining apparatus for irradiating a printed circuit board with a laser beam by use of the optical scanner to thereby perforate the printed circuit board. In order to operate an actuator for rocking the mirror based on a deviation of a current position from an commanded value, a change in gain of the actuator is measured in accordance with each rocking angle in advance, and the manipulated variable of the actuator is corrected to cancel the change in gain. Thus, the influence of the alteration of a torque constant in accordance with the rocking angle can be suppressed so that the response characteristic becomes uniform all over a scanning region, and the positioning speed can be improved.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: September 18, 2007
    Assignee: Hitachi Via Mechanics Ltd.
    Inventors: Haruaki Otsuki, Souichi Toyama, Kenta Seki, Yaichi Okubo, Daisuke Kitamura
  • Patent number: 7267276
    Abstract: In an apparatus for optically reading a target based on light reflected from the target, an imaging lens with a first optical axis is provided so that the reflected light enters into the imaging lens. A photodetector having an active area and a second optical axis different from the first optical axis is provided. The imaging lens focuses the reflected light on the active area of the photodetector. A fold mechanism is arranged between the imaging lens and the photodetector. The fold mechanism folds an optical path of the reflected light between the imaging lens and the photodetector to adjust a length of the optical path while keeping each of the first and second optical axes constant.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: September 11, 2007
    Assignee: Denso Wave Incorporated
    Inventors: Kunihiko Ito, Hisashi Shigekusa
  • Publication number: 20070187513
    Abstract: In a method and system for the characterization of a magnetic element based on ferromagnetic resonance, the magnetic element presents ferromagnetic resonance and its own characteristic resonance frequency. The system includes: mechanism for application of a low-frequency electromagnetic field in a given area; a mechanism for application of a high-frequency electromagnetic wave the same as the characteristic resonance frequency of the magnetic element in said same Area; and a control unit configured so as to control the simultaneous application of the low-frequency electromagnetic field so that in response to the introduction of the magnetic element in the area the magnetic element absorbs the high-frequency electromagnetic wave with a frequency the same as that of the low-frequency electromagnetic field, so the wave is modulated.
    Type: Application
    Filed: February 14, 2007
    Publication date: August 16, 2007
    Inventors: Pilar Marin Palacios, Daniel Blanco Cortina Blanco, Javier Calvo Robledo, Antonio Hernando Grande
  • Patent number: 7255280
    Abstract: Apparatus for deflecting a light beam, comprising: a scanning element having a base portion, a light beam deflecting portion, and a gap region disposed therebetween. The base portion is anchored with respect to an optical bench to permit the light beam deflecting portion to pivot about a fixed pivot point defined between the base portion and the gap region. The light beam deflecting portion has a natural resonant frequency of oscillation about the fixed pivot point and is mechanically-damped at the gap region. A permanent magnet and right beam deflating portion are mounted on the light beam deflecting portion. A magnetic-field producing coil produces a force field that interacts with the permanent magnet and forces the light beam deflecting portion to oscillate about the fixed pivot point at a controlled frequency of oscillation that is substantially different from the natural resonant frequency of oscillation of the light beam deflecting portion.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: August 14, 2007
    Assignee: Metrologic Instruments, Inc.
    Inventors: Robert E. Blake, Charles A. Naylor, Stephen J. Colavito, Thomas Amundsen, Thomas Carullo, C. Harry Knowles
  • Patent number: 7198195
    Abstract: An optical system and method for data reading. A preferred system is directed to a scanner which includes a laser diode and a beam splitter for generating first optical beam and a second optical beam, the first optical beam being directed toward one side of a scanning optical element such as a rotating polygon mirror and to a first mirror array, the second optical beam being simultaneously directed toward a second optical element such as another side of the rotating polygon mirror and then to a second and a third mirror array. The first mirror array is configured to generate a scan pattern through a vertical window and the second and third mirror arrays are configured to generate scan patterns passing through a horizontal window. In combination, the three mirror arrays generate three sets of scan lines so as to scan five sides of a six-sided item (e.g., the bottom and all lateral sides of an object) being passed through the scan volume.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: April 3, 2007
    Assignee: PSC Scanning, Inc.
    Inventors: Mohan LeeLaRama Bobba, Jorge Louis Acosta, Timothy Joseph Eusterman, James W. Ring, Alexander M. McQueen
  • Patent number: 7182262
    Abstract: A light scanning arrangement includes a frame directly moved by an inertial drive in order to oscillate a scan element supported by a hinge on the frame at high scan rates and with minimal electrical power consumption.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: February 27, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Frederick F. Wood, Dmitriy Yavid
  • Patent number: 7097101
    Abstract: An optical code reader having means for focusing an imaging optics assembly on a target image. The optical code reader includes a chassis and an imaging optics assembly pivotally mounted on the chassis. The imaging optics assembly is housed within an opto-mechanical barrel assembly. Pivotal movement of the opto-mechanical barrel assembly adjusts the focus of the imaging optics assembly on a target image. The optical code reader further includes an illumination device and an aiming device.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: August 29, 2006
    Assignee: Symbol Technologies, Inc.
    Inventors: Eduard Kogan, Joseph Giordano, Andrei Shamkovich, Heng Zhang
  • Patent number: 7083102
    Abstract: A bioptical laser scanning system employing a plurality of laser scanning stations about a two independently controlled rotating polygonal mirrors. The system has an ultra-compact construction, ideally suited for space-constrained retail scanning environments, and generates a 3-D omnidirectional laser scanning pattern between the bottom and side-scanning windows during system operation. The laser scanning pattern of the present invention comprises a complex of quasi-orthogonal laser scanning planes, including a plurality of substantially-vertical laser scanning planes for reading bar code symbols having bar code elements (i.e. ladder type bar code symbols) that are oriented substantially horizontal with respect to the bottom-scanning window, and a plurality of substantially-horizontal laser scanning planes for reading bar code symbols having bar code elements (i.e. picket-fence type bar code symbols) that are oriented substantially vertical with respect to the bottom-scanning window.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: August 1, 2006
    Assignee: Metrologic Instruments, Inc.
    Inventors: Timothy Good, Mark Lucera, Joseph Ralph
  • Patent number: 7077325
    Abstract: A portable instrument incorporates an electro-optical assembly for reading indicia during a reading mode, and for projecting a bit-mapped image during a display mode. A manually operable switch on the instrument is disposed for selecting one of the modes. The image is formed by pulsing a laser at selected times on selected scan lines.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: July 18, 2006
    Assignee: Symbol Technologies, Inc.
    Inventors: Chinh Tan, Frederick F. Wood, Miklos Stern, Joseph Katz, Shane MacGregor, Altaf Mulla
  • Patent number: 7073716
    Abstract: A barcode scanner with a dual-surface polygon which increases total scan line length. The polygon includes generally planar walls arranged in a ring having first mirrored facets facing generally towards a center of the ring and second mirrored facets facing generally away from the center of the ring. The first and second mirrored facets direct a laser beam to produce a scan pattern.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: July 11, 2006
    Assignee: NCR Corporation
    Inventor: Steven J. Hammer
  • Patent number: 7059528
    Abstract: A raster pattern for reading bar code symbols is created by successively reflecting a light beam off scan mirrors oscillated respectively by a resonant motor drive and by another motor drive driven synchronously with the resonant drive.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: June 13, 2006
    Assignee: Symbol Technologies, Inc.
    Inventors: Edward Barkan, Howard Shepard, Mark E. Drzymala
  • Patent number: 7025273
    Abstract: Actuator systems are provided for automatically focusing an optical image reader. Techniques are also provided which are applicable to the design of imaging engines and imaging lens systems associated with image readers of various types. More specifically, the present invention relates to lens guidance assemblies and actuator systems for automatically focusing an objective lens associated with an imaging system of an optical image reader. The optical image reader is preferably an optical code image reader for imaging optical codes, such as bar codes.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: April 11, 2006
    Assignee: Symbol Technologies, Inc.
    Inventors: Alex Breytman, Mark Krichever, Bradley S. Carlson, David Tsi Shi
  • Patent number: 7007843
    Abstract: A micro-electro-mechanical system component is deformed to control a shape and size and orientation of a laser beam spot that is scanned across a symbol to be read by an electro-optical reader.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: March 7, 2006
    Assignee: Symbol Technologies, Inc.
    Inventor: Paul R. Poloniewicz
  • Patent number: 6994256
    Abstract: The present invention provides a barcode reader, which irradiates a scanned laser beam onto a barcode symbol and reads the information written in the symbol, wherein a laser beam scanning unit is made by insertion molding as one body with a movable support member, a support member fixed to the main body, and a metallic elastic member connecting these support members, the support members are molded as one body with a scanning mirror, and a permanent magnet is fixed to the support members. A driving coil is provided in proximity to the permanent magnet, and generates an attractive force or a repulsive force to rotate the magnet at a periodic laser beam scanning angle. Further, a stopper mechanism is provided to soften an external impact to the rotation of the scanning mirror.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: February 7, 2006
    Assignee: Olympus Corporation
    Inventors: Tokuo Shimizu, Akifumi Kabeya
  • Patent number: 6981643
    Abstract: A barcode scanner includes at least a laser emitter, a collimator, a light condensing lens and a linear light receiver. When the scanning light beams from the laser emitter are projected onto a barcode through the collimator, a barcode signal is produced from the reflected image thereof focused onto the linear light receiver through the light condensing lens. The characteristics thereof are that at least one beam splitter and reflector are disposed at the projecting path of the scanning light beams from the laser emitter and the collimator to barcode, so as to enable the scanner to act as a multiple light sources structure, thereby distributing the scanning light beams more evenly with lower production cost and material.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: January 3, 2006
    Assignee: Riotec Corp.
    Inventor: Kai-Yuan Tien
  • Patent number: 6948662
    Abstract: An alignment indication is provided in an optical scanner for reading a two-dimensional optical code by varying the scanning beam to provide a region of apparent greater brightness. In the case of a PDF417 bar code symbol, an elongated brighter region may be oriented so that it is parallel with rows of the PDF417 symbol. The apparent greater brightness may result because of the persistence of the scanning pattern in the user's vision. The region of apparent greater brightness may be achieved by providing a greater density of scan lines in the region. Because of the persistence in the user's vision, multiple scan lines appear simultaneously, and thus a region with a greater density of scan lines appears as a brighter region. The region of apparent greater brightness may also be achieved by providing a differently shaped scanning spot in the region (e.g., a larger, or more elongated spot).
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: September 27, 2005
    Assignee: Symbol Technologies, Inc.
    Inventor: Paul Dvorkis
  • Patent number: 6899272
    Abstract: A bioptics bar code reader has first and second windows disposed at an angle to each other, a first imager for the first window and a second imager for the second window and first and second optics for directing light from a bar code in a reading area between the windows to the first and second imagers. The two imagers each obtain an image of the bar code in the reading area.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: May 31, 2005
    Assignee: Symbol Technologies, INC
    Inventors: Mark Krichever, Mehul Patel
  • Patent number: 6854655
    Abstract: The invention relates to a scanning device for reading bar code symbols, wherein the scanning device comprises a housing having a substantially horizontal surface and a substantially vertical surface. A motor rotates a polygon mirror, which reflects a light beam from a light source and redirects it toward a mirror array and out a window in the substantially horizontal window. Another motor rotates another polygon mirror, which reflects a light beam from a second light source and redirects it toward a second mirror array and out a window in the substantially vertical surface. A plurality of sensors detects light reflected back from a bar code and generates a plurality of electrical signals proportional to the intensity of the reflected light.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: February 15, 2005
    Assignee: Symbol Technologies, Inc.
    Inventor: Edward Barkan
  • Publication number: 20040238639
    Abstract: Vibration is minimized in an electro-optical reader for reading indicia by oscillating a counterweight and a scan component to move simultaneously toward each other, and to move simultaneously away from each other. A magnet is mounted for joint movement with the counterweight and the scan component. An electromagnetic coil magnetically interacts with each magnet to cause the counterweight and the scan component to move with oppositely directed moments that counterbalance each other.
    Type: Application
    Filed: May 27, 2003
    Publication date: December 2, 2004
    Inventor: Paul Dvorkis
  • Patent number: 6820811
    Abstract: A bar code scanner and method of operation thereof is disclosed. The bar code scanner comprises a housing including a surface having a transparent scanning window; and optical components including a spinner located within the housing. The optical components are arranged to produce both a first set of scan lines focused outside of the housing and remote from the scanning window; and a second set of scan lines focused outside of the housing and adjacent the scanning window. The method includes the steps of placing a bar code to be read in either a first position where said first set of scan lines are focused or in a second position wherein said second set of scan lines are focused.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: November 23, 2004
    Assignee: NCR Corporation
    Inventor: Paul O. Detwiler
  • Publication number: 20040118927
    Abstract: Actuator systems are provided for automatically focusing an optical image reader. Techniques are also provided which are applicable to the design of imaging engines and imaging lens systems associated with image readers of various types. More specifically, the present invention relates to lens guidance assemblies and actuator systems for automatically focusing an objective lens associated with an imaging system of an optical image reader. The optical image reader is preferably an optical code image reader for imaging optical codes, such as bar codes.
    Type: Application
    Filed: April 29, 2003
    Publication date: June 24, 2004
    Inventors: Alex Breytman, Mark Krichever, Bradley S. Carlson, David Tsi Shi
  • Publication number: 20040104270
    Abstract: A method of and a system for generating a dense pattern of scan lines. In a preferred configuration, a laser beam is directed into an inline beam dithering mechanism which dithers the beam over an angle parallel to the axis of rotation of the rotating facet wheel. The combination of the dithering mechanism and the scanning motion of the rotating facet wheel creates a dense scan pattern. Return light is retrodirectively collected and by a collection element such as a collection lens onto a detector. A beam redirector such as a cone-shaped device having openings on both ends and a reflecting internal surface is disposed between the collection lens and the detector to redirect off-axis spot onto the detector. The system and method is applicable to both single and multiple beam systems and single and multiple window scanners.
    Type: Application
    Filed: June 24, 2003
    Publication date: June 3, 2004
    Inventor: Jorge L. Acosta
  • Publication number: 20040089720
    Abstract: A hand-held bar code reader including a housing bounding an interior, a window, a generally planar printed circuit board mounted in the interior, and an optical scanning assembly mounted on the board and including a scanner for directing a light beam through the window at an acute angle relative to the board. A scanning element of the reader is manufactured by spacing a first and second support element apart by a gap bounded by edges of the support elements; injection molding a curable, elastomeric material in flowable form over the edges and into the gap; and allowing the curable, elastomeric material to cure and bond to the edges, and form a flexible hinge in the gap for enabling movement of the support elements relative to one another both away from and toward a stable rest initial position.
    Type: Application
    Filed: June 25, 2003
    Publication date: May 13, 2004
    Inventors: Edward Barkan, Mark Drzymala, Yajun Li
  • Patent number: 6715685
    Abstract: A compact retro-reflective module for use in electro-optical bar code readers includes components arranged to fold outgoing and incoming light along crossed optical paths. The module is convertible between generating one-dimensional and two-dimensional scan patterns to read bar code symbols.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: April 6, 2004
    Assignee: Symbol Technologies, Inc.
    Inventor: Paul Dvorkis
  • Patent number: 6708888
    Abstract: A reflection cowl for a bar-code scanner features that the light source wherein is a mono luminous element of light-emitting diode (LED) with a reflection cowl disposed in the rear aspect thereof, the reflection cowl is divided by the center line passed through the light source into a left and a right portions of reflection curved surfaces; respectively, the left and the right portions of the curved surfaces have a plurality of concaved reflection spherical surfaces thereon; all the reflection spherical surfaces have the function of distributing the light so as to make all the light rays reflected back from all the reflection spherical surfaces fall evenly on the convex light stick, thereby adjusting the curvature of the reflection cowl further adjusts the left and the right distribution areas of the reflected light, that means, evenly distributes the brightness at the center and on the side rim thereof.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: March 23, 2004
    Inventors: Kenneth Liou, Ting-Hao Hsiao
  • Publication number: 20040026512
    Abstract: An optical unit for an optical symbol reader comprises an optical scanner for scanning an optical symbol with the laser beam emitted by a light source, by angularly oscillating a reflection face for reflecting the laser beam owing to an electromagnetic force. The optical scanner comprises a loose bearing structure having a shaft and a bearing bore and supporting a rotor having the reflection face to angularly oscillate freely with respect to a base. A certain bearing gap is formed between an outer diameter of the shaft and an inner diameter of the bearing bore. The optical scanner further comprises a coil spring resiliently for urging the rotor in a predetermined direction so that a part of an outer circumferential face of the shaft may be contacted with an inner circumferential face of a bearing bore.
    Type: Application
    Filed: March 31, 2003
    Publication date: February 12, 2004
    Inventor: Yusuke Otsubo
  • Patent number: 6631845
    Abstract: The invention relates to a scanning device for reading bar code symbols, wherein the scanning device comprises a housing having a substantially horizontal surface and a substantially vertical surface. A motor rotates a polygon mirror, which reflects a light beam from a light source and redirects it toward a mirror array and out a window in the substantially horizontal window. Another motor rotates another polygon mirror, which reflects a light beam from a second light source and redirects it toward a second mirror array and out a window in the substantially vertical surface. A plurality of sensors detects light reflected back from a bar code and generates a plurality of electrical signals proportional to the intensity of the reflected light.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: October 14, 2003
    Assignee: Symbol Technologies, Inc.
    Inventor: Edward Barkan
  • Patent number: 6588668
    Abstract: A laser diode control board (9), a scanning deflection member control board (12), and an electric signal processing board (11) composing a bar code scanner are formed of individual boards, the laser diode control board (9) is vertically disposed on the side opposite to a collimate lens (5) with respect to the laser diode (2) such that the board face thereof closely faces the laser diode, the electric signal processing board (11) is disposed below the collimate lens (5) along the irradiation direction of a laser beam in a vertical position, the scanning deflection member control board (12) is disposed at the rear in the irradiation direction of the laser beam with respect to the scanning deflection member (8), and the boards are attached to a holding member (4) with the laser diode (2), the collimate lens (5), a mirror (6), the scanning deflection member (8), and a light receiving element (3).
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: July 8, 2003
    Assignee: Tohoku Ricoh Co., Ltd.
    Inventor: Matsuo Yomogida
  • Publication number: 20030102378
    Abstract: A radiation director is coupled to move under the control of a piezoelectric element. The director directs electromagnetic radiation from a radiation source under the control of the piezoelectric element. In a scanning station embodiment, an electrical signal source is connected to cause the piezoelectric element to vibrate, and a radiation detector is positioned to detect radiation from an object scanned by the radiation. In a radiation scanning method, a piezoelectric element is caused to move in a reciprocating fashion, and the movement of the piezoelectric element is used to direct an electromagnetic radiation beam in a scanning motion.
    Type: Application
    Filed: November 30, 2001
    Publication date: June 5, 2003
    Inventors: Wayne E. Grant, Douglas A. Dale
  • Patent number: 6536668
    Abstract: A dual aperture optical scanner which employs a single laser beam to produce horizontal and vertical scan patterns. The optical scanner includes a housing having first and second apertures, a laser beam source, a mirrored spinner having a plurality of facets with different elevation angles for reflecting the laser beam in a plurality of directions, and a plurality of pattern mirrors within the housing for reflecting the laser beam from the spinner through the first and second apertures to an article having a bar code label to be scanned. The optical scanner also includes an optical transceiver for passing the laser beam and for collecting reflected light from the scanned article and a photodetector for generating signals representing the intensity of the light reflected from the article.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: March 25, 2003
    Assignee: NCR Corporation
    Inventors: Paul O. Detwiler, Barry M. Mergenthaler
  • Publication number: 20030047614
    Abstract: A retroreflective optical scan module, including first and second selectable light sources having different beam characteristics for directing a selected light beam to a symbol to be read, an optical assembly including a light collecting portion which collects and redirects the light reflected from the symbol along an optical path to a sensor, and a selector for selecting which light source to use depending on whether a one-dimensional or a two-dimensional symbol is being scanned.
    Type: Application
    Filed: July 12, 2002
    Publication date: March 13, 2003
    Inventors: Paul Dvorkis, Edward Barkan, Henry Grosfeld, Timothy Austin, Vikram Bhargava
  • Patent number: RE40102
    Abstract: An optical scanner for reading indicia having areas of different light reflectivity, such as bar code symbols includes a stationary, multi-surface, fold mirror having a first surface of a first aplanar profile and a second surface of a second, different aplanar profile.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: February 26, 2008
    Assignee: Symbol Technologies, Inc.
    Inventors: Paul Dvorkis, Edward Barkan, Boris Metlitski