Light Pipes Patents (Class 235/473)
  • Patent number: 9899558
    Abstract: A disclosed photosensor includes: a first electrode layer including a reflection part having an inclination surface; a first semiconductor layer positioned on the first electrode layer; a second electrode layer positioned on the first semiconductor layer; and a first dielectric layer and a second dielectric layer sequentially positioned on the second electrode layer, wherein the first dielectric layer and the second dielectric layer have different dielectric constant values. Further, the disclosed display device includes a plurality of pixel areas positioned on a substrate, and a sensor unit formed in at least some pixel areas among the plurality of pixel areas.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: February 20, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Ju Im, Min-Sung Kim, Thanh Tien Nguyen, Jae Seob Lee
  • Patent number: 9405951
    Abstract: A light transmitter (e.g., pipe) is constructed from polycarbonate for increased shock resistance and can define a rectangular cross section. A chamfered end of the light pipe is textured or frosted to further diffuse refracted light passing through the end to present a more even effect. A conical/tapered diffuser within the light pipe is illuminated by a reflector that reflects a plurality of rear-ward-directed illumination sources back into the diffuser. The reflector can direct light into the forwardmost, remote regions of the diffuser to generate a better spread of light and alleviate spotting effects. The illumination sources can be multi-colored sources that respond to a controller to project a color and/or blink in a pattern to indicate various conditions. The controller can operate individual portions of the ring so that only corresponding portions of the light pipe perimeter are illuminated in a particular color at a given time.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: August 2, 2016
    Assignee: Cognex Technology and Investment LLC
    Inventors: Laurens Nunnink, William H. Equitz
  • Patent number: 8876006
    Abstract: A lightpipe, which is mounted on one chassis part of an imaging module of an imaging reader, optically modifies an aiming beam emitted by an aiming laser, which is mounted on another chassis part of the imaging module, to generate and shape an aiming light pattern on a target. In one embodiment, at least one, or both, of the chassis parts are movable relative to each other to spatially adjust the aiming light pattern relative to an imaging field of view. In another embodiment, the aiming laser and the lightpipe are received in respective pockets of the chassis parts with clearance, and are adjustably fixed in place to spatially adjust the aiming light pattern relative to the imaging field of view.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: November 4, 2014
    Assignee: Symbol Technologies, Inc.
    Inventors: Igor R. Vinogradov, Yuly Mitelman
  • Patent number: 8744187
    Abstract: According to one embodiment, an image identification apparatus comprises an image pickup unit, an illumination unit, an illumination control unit and an identification unit. The image pickup unit configured to pickup an image of an identified object. The illumination unit configured to irradiate light towards the image pickup area of the image pickup unit. The illumination control unit configured to change the irradiation condition of the illumination unit in accordance with the image pickup timing of the image pickup unit. The identification unit configured to identify the identified object according to the image picked-up by the image pickup unit.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: June 3, 2014
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Hidehiro Naito, Hitoshi Iizaka, Yoshiya Yamada
  • Patent number: 8479991
    Abstract: There is provided an illumination setting support apparatus that enables a user to easily set an optimal lighting pattern while visually checking. A schematic diagram of the illumination unit is displayed in the setting screen, so that clicking on a desired area inside this schematic diagram allows the arbitrary area to be selected from eight areas in the circumferential row of the “outermost circumference” of the external illumination unit. Lighting pattern information is transmitted to a bar code reader and is transferred to the external illumination unit. Imaging is performed while executing illumination control in accordance with the lighting pattern to thereby immediately display a live image on a PC.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: July 9, 2013
    Assignee: Keyence Corporation
    Inventors: Shigeo Nakamura, Hajime Matsuda
  • Patent number: 8342404
    Abstract: There is provided an illumination setting support apparatus that enables a user to easily set an optimal lighting pattern while visually checking. A schematic diagram of the illumination unit is displayed in the setting screen, so that clicking on a desired area inside this schematic diagram allows the arbitrary area to be selected from eight areas in the circumferential row of the “outermost circumference” of the external illumination unit. Lighting pattern information is transmitted to a bar code reader and is transferred to the external illumination unit. Imaging is performed while executing illumination control in accordance with the lighting pattern to thereby immediately display a live image on a PC.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: January 1, 2013
    Assignee: Keyence Corporation
    Inventors: Shigeo Nakamura, Hajime Matsuda
  • Patent number: 8235291
    Abstract: An optical text scanning device compatible with a small handheld computer such as a personal digital assistant (PDA). The scanning device allows for a clear view of the text that is scanned simultaneous to the scanning process so that the operator can continuously align the device to the text. The scanned images of the text are converted in real-time to standard byte or word characters for subsequent display on the computer's viewing screen. The operator can quickly verify the accuracy of the conversion by comparing the displayed character with the actual character of text on the surface that is being scanned. Scanned text characters are stored in standard digital text files for ease of manipulation.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: August 7, 2012
    Inventor: Erich Wolf
  • Patent number: 8191787
    Abstract: An image capturing apparatus having an image capturing unit and an image filtering surface in which the optical axis of the image capturing unit is disposed at an angle ? to a normal of the image fitting surface.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: June 5, 2012
    Assignee: NeoMedia Europe GmbH
    Inventors: Jorg Kuchen, Frank Muller, Laurens Nunnink
  • Patent number: 8002186
    Abstract: 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 laser for monitoring the output power of the laser. An external light detector, e.g., an auxiliary photodiode, is mounted outside the laser for monitoring the output power of the laser independently of the internal light detector. A guide, advantageously a light pipe or a diffuser, is positioned outside the laser in the path of the laser beam for guiding the laser beam from the laser to the external light detector. A controller is operatively connected to each light detector, for controlling a monitored output power of the laser beam by deenergizing the laser when the monitored output power of the laser beam exceeds a safe power level limit.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: August 23, 2011
    Assignee: Symbol Technologies, Inc.
    Inventors: Igor Vinogradov, Mark Drzymala, Darren Handshaw, Yuly Mitelman, Rong Liu
  • Patent number: 7913913
    Abstract: A data receiving and illuminatable marking instrument and spaced emission source is disclosed. The marking instrument may be a full duplex marking apparatus that communicates with spaced emitters transmitting infrared electromagnetic energy encoded with unique data packets. The marking instrument illuminates a portion of the marking implement in response to the data received from the data transmitting device. A method for using the above invention likewise is disclosed.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: March 29, 2011
    Assignee: Crayola LLC
    Inventors: Robert Henry, James Allen, Eric Shuler, Stephen Weiss
  • Publication number: 20110024504
    Abstract: 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. The light pipe can include concentric cylinders, typically with a bright field illuminator nested within a dark field illuminator. The tip of the dark field illuminator may be angled so as to internally reflect light inwardly toward the central optical axis of a camera at a low angle. The tip can be located near the focal plane of the camera for the desired field of view. The field of view of the camera sensor can be modified to reject data outside of a illumination field of a particular shape. This illumination field can be created by shaping the light pipe in a predetermined form that projects the modified illumination field.
    Type: Application
    Filed: October 8, 2010
    Publication date: February 3, 2011
    Inventors: Carl W. Gerst, III, William H. Equitz, Justin Testa, Sateesh Nadabar
  • Patent number: 7874487
    Abstract: This provides a plurality of novel features that can be applied variously to a reader. In one embodiment, the light pipe is constructed from durable polycarbonate for increased shock resistance and can define a rectangular cross section. The chamfered end of the light pipe is textured or frosted to further diffuse refracted light passing through the end so as to present a more even effect. The conical/tapered diffuser within the light pipe is illuminated by a reflector with a white textured surface that reflects a plurality of rearward-directed illumination sources back into the diffuser. The reflector can define a predetermined cross section that directs further light into the forwardmost, remote regions of the diffuser to generate a better spread of light and alleviate spotting effects. The textured surface on the chamfered light pipe end can be employed to better project indicator light.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: January 25, 2011
    Assignee: Cognex Technology and Investment Corporation
    Inventors: Laurens Nunnink, William H Equitz
  • Patent number: 7770794
    Abstract: Methods and systems for transferring information between a movable system and another system. The movable subsystem includes an electrical component providing electrical signal including information. Electromagnetic radiation is modulated according to the information. The other subsystem includes a receiving component that receives the modulated electromagnetic radiation and converts the received electromagnetic radiation into other electrical signals.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: August 10, 2010
    Assignee: Marvell International Technology Ltd.
    Inventors: Steven M. Goss, Gregory F. Carlson, Ronald G. Paul, Todd A. McClelland, Randall L. Stockberger, Jerry A. Marshall, Jr.
  • Patent number: 7619527
    Abstract: An integrated data reader and electronic article surveillance (EAS) system, and methods of operation. Several configurations are also disclosed for alternate deactivation coil designs and mounting schemes.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: November 17, 2009
    Assignees: Datalogic Scanning, Inc., Sensormatic Electronics Corporation
    Inventors: Matthew J. Friend, Douglas A. Drew, David J. Newman, Gerardo Aguirre, Ronald B. Easter, Garrett J. Barnum
  • Patent number: 7614563
    Abstract: An illumination system and method for use in a handheld symbology reader that employs a grid of reflecting elements applied to a transparent plate adapted to project a highly diffuse and uniform illumination on a subject. The grid defines a geometry with a large number of transparent spaces between grid elements through which an image of the subject can be acquired. A light source array is configured to project light into the grid at a right angle via a light pipe having a distal beveled edge or side projecting light sources. Another light source may be employed to illuminate second light pipe with a chamfered edge to create low-angle illumination.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: November 10, 2009
    Assignee: Cognex Technology and Investment Corporation
    Inventors: Laurens Nunnink, William H. Equitz, Carl W. Gerst
  • Patent number: 7611059
    Abstract: On a display window that displays code patterns that are read at a time, a code reading device allows the code pattern that is successfully decoded to be visually confirmed with ease. In a handy terminal, when an image scanner reads code patterns at a time in response to a trigger operation, a CPU performs decoding processes for each code pattern and determines whether the decoding processes have been successfully completed or not based on the decoding results so as to display an identifying mark indicating the determination result in association with the image of each code pattern.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: November 3, 2009
    Assignee: Casio Computer Co., Ltd.
    Inventors: Yoshinobu Kobayashi, Kumiko Oono, Toshihide Fujii
  • Patent number: 7581682
    Abstract: To improve image capture from a display or a surface, more specifically from a specular reflecting surface, the invention proposes an image capturing apparatus having an image capturing unit and an image fitting surface in which the optical axis of the image capturing unit is disposed at an angle ? to a normal of the image fitting surface.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: September 1, 2009
    Assignee: Gavitec AG
    Inventors: Jörg Küchen, Frank Müller, Laurens Nunnink
  • Publication number: 20090108075
    Abstract: A reader for electro-optically reading indicia, includes a sensor for sensing light from the indicia, and for generating a signal indicative of the indicia. A support includes a housing in which the sensor is contained, and a light-transmissive window through which the light from the indicia passes en route to the sensor. The window and the housing are both constituted of a same moldable material and are integrally molded together as a single component of one-piece, seamless construction. A pressure indicator is also integrally formed with the housing, for visually indicating pressure within the housing.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Inventors: Igor Vinogradov, Carl Wittenberg
  • Publication number: 20090108076
    Abstract: An immobile, non-magnetic mode sensor, preferably an optical sensor, is entirely supported by a housing of a reader for electro-optically reading indicia in a handheld mode, and in a hands-free mode, of operation. The mode sensor is operative for sensing the mode of operation, for example, by detecting whether the housing has been grasped by an operator, or by detecting whether the housing has been removed from a support surface. The mode sensor is actuatable between handheld and hands-free states, which respectively correspond to the handheld and hands-free modes of operation. A controller is operative for selecting the mode of operation, which is sensed by the mode sensor, in which the indicia is to be read.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Inventors: Edward Barkan, Igor Vinogradov
  • Patent number: 7451917
    Abstract: A transaction terminal including a display, a housing, an imaging module assembly wherein the imaging module assembly comprises a control and decode circuit, an imaging module, and a light pipe disposed optically forward of the imaging module. The light pipe may be in a tubular configuration and may include a first end disposed inside the housing and a second end extending to an exterior of the housing. The transaction terminal may include a motion detector generating a motion detection signal that serves as a trigger signal. When a motion detection signal changes state from OFF to ON, light sources of the LEDs are actuated so that a user is notified of a decoding function of the terminal.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: November 18, 2008
    Assignee: Hand Held Products, Inc.
    Inventors: Melvin D. McCall, Timothy R. Fitch, Garrison Gomez, James F. O'Donnell, George S. Smith, David Sperduti
  • Publication number: 20080185441
    Abstract: A data receiving and illuminatable marking instrument and spaced emission source is disclosed. The marking instrument may be a full duplex marking apparatus that communicates with spaced emitters transmitting infrared electromagnetic energy encoded with unique data packets. The marking instrument illuminates a portion of the marking implement in response to the data received from the data transmitting device. A method for using the above invention likewise is disclosed.
    Type: Application
    Filed: October 4, 2007
    Publication date: August 7, 2008
    Applicant: CRAYOLA LLC
    Inventors: ROBERT HENRY, JAMES ALLEN, ERIC SHULER, STEPHEN WEISS
  • Publication number: 20080142604
    Abstract: An apparatus for imaging a symbol associated with an object which includes a housing and an imaging module connected to the housing, where the imaging module includes at least one lens for creating an image of the symbol. The imaging module further has a sensor for sensing the image. An electroluminescent light sheet is connected to the housing, and the electroluminescent light sheet provides at least one of dark field illumination and bright field illumination.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 19, 2008
    Inventor: Laurens Nunnink
  • Patent number: 7331524
    Abstract: A bar code reader indicator feature gives visible indication that a bar code function has been performed. The feature is integrally molded with the exit window to simplify the design and reduce cost. The feature can diffuse light from an existing indicator light within the reader or the scanning light beam can be directed to impinge upon an area of the exit window not normally in the beam path when the function has been performed to illuminate the feature.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: February 19, 2008
    Assignee: Symbol Technologies, Inc.
    Inventors: Igor Vinogradov, Vladimir Gurevich, David Tsi Shi
  • Publication number: 20070221735
    Abstract: An optical reading device is disclosed, in which the size and weight thereof are reduced, and the shock resistibility of the spindle motor thereof is improved. The optical reading device comprises a casing and an optical reader, wherein the optical reader thereof is received inside the casing. The optical reader includes a first portion, a second portion, and an optical fiber. The first portion is mounted inside the casing, while the second portion is mobile inside the casing. The optical fiber connects with the first portion and the second portion respectively, which enables the light to be emitted from the light source of the first portion and to be transmitted to the second portion and the data storage medium thereof. Hence, by the arrangement of the units illustrated, the weight of the optical reader device is reduced, and the shock resistibility of the optical reader thereof is improved as well.
    Type: Application
    Filed: January 12, 2007
    Publication date: September 27, 2007
    Applicant: ASUSTEK COMPUTER INC.
    Inventors: Hu-Sung Chang, Meng-Hsun Chan
  • Patent number: 7021541
    Abstract: The invention aims at obtaining an original illuminating apparatus and an image reader having the same with which “the reflection” phenomenon is reduced, and much quantity of light for illumination is obtained in an area to be read of an original to thereby be able to perform the reading operation at high speed.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: April 4, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tadao Hayashide
  • Patent number: 6648225
    Abstract: An optical reader includes a housing which may environmentally protect the optical path between a light source and a sensor array to reduce dust and debris interfering with transmission of light. The housing may further provide for alignment of the light path by positioning a focusing axis in alignment with the optical sensor array. The housing further acts as a light pipe to reflect transmitted light from a light source toward a focusing axis where the light may be reflected off of a document containing coded information back through the chamber defined by the housing to an optical sensor array. Point of sale devices incorporating an optical reader are also provided.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: November 18, 2003
    Assignee: International Business Machines Corporation
    Inventors: Richard Hunter Harris, Robert William Kruppa
  • Patent number: 6409088
    Abstract: A high performance scanning device is adapted for capture of image information from various financial instruments, such as, banknotes, credit cards, identification cards, banknotes, etc. The device uses a reflective light guide arranged for guiding both of the transmission and the reception of scanning illumination. The light guide allows effective concentration of illumination power for a high-performance scanning operation.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: June 25, 2002
    Assignee: Nauchno-Tekhnicheskykkooperativ (Vector)
    Inventor: Valery Alekseevich Klevtsov
  • Patent number: 6247645
    Abstract: An optical reader having a housing which may environmentally protect the optical path between light source and a sensor array to reduce dust and debris interfering with transmission of light. The housing may further provide for alignment of the light path by positioning a focusing axis in alignment with the optical sensor array. The housing further acts as a light pipe to reflect transmitted light from a light source toward a focusing axis where the light may be reflected off of a document containing coded information back through the chamber defined by the housing to an optical sensor array. Point of sale devices incorporating an optical reader are also provided.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: June 19, 2001
    Assignee: International Business Machines Corporation
    Inventors: Richard Hunter Harris, Robert William Kruppa
  • Patent number: 6244509
    Abstract: A scanning device for capturing images, which contains an optical unit comprising a light source, a light guide, and a light receiver. The light guide comprises a substantially parallel sided, transparent member, the member having first opposed ends extending between the parallel sides, one of the ends facing the light source and extending non-orthogonally between the parallel sides, the other end facing the image to be scanned in use, and second opposed ends extending between the parallel sides and the first opposed ends. Light from the light source enters the light guide through the one first end, is directed onto the image after passing out of the other first end, is reflected back into the light guide and then directed by the light guide towards the light receiver.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: June 12, 2001
    Assignee: Nauchno-Teknichesky Kooperative (Vector)
    Inventor: Valery Alekseevich Klevtsov
  • Patent number: 6169614
    Abstract: A diffractive collector for an optical scanner includes a wedged-shaped substrate having holographic grating provided on a front surface, a conical-shaped back surface, and at least one detector. Substantially parallel light is made incident upon the front surface of the substrate, and the light is diffracted within the substrate to the back surface. The wedged shaped of the collector and the holographic grating cause the light to reflect back within the substrate at such an angle that the light remains within the substrate as the light propagates to the at least one detector.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: January 2, 2001
    Assignee: PSC Scanning, Inc.
    Inventors: Kevin J. Whitcomb, Brian M. McMaster, Alan Shearin, Anna M. Dean
  • Patent number: 6010072
    Abstract: A hand scanner for scanning a document by being moved by hand and sending the resulting image data to a host is disclosed. The scanner is easily movable over a document without meandering. Because the scanner includes a minimum number of parts, it is small in size and simple in configuration.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: January 4, 2000
    Assignee: NEC Corporation
    Inventors: Yasushi Matsumoto, Toru Uchida
  • Patent number: 5861817
    Abstract: A handhold control unit (HCU) shaped like a gun includes a non volatile random access memory (RAM) for storing price information (e.g. price, price per ounce, sales discounts) for the items on the market shelves. The HCU receives such information from a central processing unit (CPU) in the market. When aimed at a stock keeping unit (SKU) tag adjacent a particular item on a shelf, the HCU interrogates the SKU tag to determine the item identity. The HCU may also provide photovoltaic energy to the SKU tag to provide for the SKU tag operation. The SKU tag responds with a code (preferably infra red) identifying the particular item and sends this code to the HCU as by infra red energy. The HCU then identifies the particular item in the RAM from the transmitted code and recovers from the RAM the price information relating to the particular item. The HCU then transmits to the SKU tag the code identifying the item and also the price information for the item.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: January 19, 1999
    Assignee: Douglas A. Palmer
    Inventors: Douglas A. Palmer, Marco Thompson
  • Patent number: 5723868
    Abstract: An array of reflectors is arranged to approximately match the arrangement of a two-dimensional array of LEDs such as used in a 2-D bar code scanner. Each reflector has at least one reflecting wall for reflecting light from a respective LED, thus increasing the amount of LED light illuminating the target.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: March 3, 1998
    Assignee: Welch Allyn, Inc.
    Inventors: Charles M. Hammond, Jr., William H. Havens
  • Patent number: 5633487
    Abstract: A machine vision system images bar code labels moving through a horizontal plane at variable object distances within the system's object depth of field Z .sub.obj with a plurality of sequential line images, each with different object lengths which gradate Z .sub.obj into plural focused object planes, and the object plane within which the bar code label lies provides a focused optical image of the bar code to a multilinear photodetector which transduces the focused optical image into a corresponding electrical signal for further processing.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: May 27, 1997
    Assignee: Adaptive Optics Associates, Inc.
    Inventors: Lawrence E. Schmutz, Jeffrey Yorsz
  • Patent number: 5597994
    Abstract: An information display system is disclosed having a housing with a viewing window. An elongated flexible sheet is contained within the housing and a plurality of discrete visual messages are provided at longitudinal spaced intervals along the sheet while a controllable motor is mechanically drivenly connected with the sheet to control the position of the sheet. A coded index is also associated with each discrete visual message on the sheet. A microprocessor based central control unit receives input from a user via a keyboard of the desired visual message to be displayed through the housing window. After the user inputs the desired message, the control unit outputs control signals to a motor control module associated with the controllable motor. The motor control module decodes the output signal and then selectively activates the controllable motor in the housing to change the positioning of the sheet until the desired or target visual message is positioned in alignment with the housing viewing window.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: January 28, 1997
    Inventor: Thomas Hornung
  • Patent number: 5586212
    Abstract: First and second elongate curved reflecting surfaces positioned in non-parallel, spaced apart relation collect light from an elongate light source and direct it onto a scanning area. One edge of the first curved reflecting surface is positioned adjacent the light source and the opposite edge is positioned adjacent the illuminated scan area so that the first curved reflecting surface extends from about the light source to about the illuminated scan area. The second curved reflecting surface is positioned in opposed spaced-apart non-parallel relation to the first curved reflecting surface such that the distance separating the reflecting surfaces at the light source is less than the distance separating the reflecting surfaces at the end adjacent the illuminated scanning area. An elongate planar reflecting surface is positioned adjacent the second curved reflecting surface so that it is substantially perpendicular to the illuminated scan area.
    Type: Grant
    Filed: July 6, 1994
    Date of Patent: December 17, 1996
    Assignee: Hewlett-Packard
    Inventors: Charles McConica, Virgil Russon
  • Patent number: 5576530
    Abstract: A portable, hand-held data terminal for scanning and reading a bar code that includes a removable scanning head that can be secured to the terminal in one orientation for right-handed operation, and can be removed and secured to the terminal in an opposite orientation for left-handed operation. The scanning head includes a bottom panel having a tab and slot structure, and the terminal includes a top panel having a tab and slot structure. The positions of the slots of the top panel structure allow the tabs of the scanning head structure to be inserted between and then under the tabs of the top panel structure in a locked configuration.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: November 19, 1996
    Assignee: Universal Data Incorporated
    Inventor: Joseph J. Hagerty
  • Patent number: 5521367
    Abstract: The laser diode of an optical scanning system is located in a separate unit and light therefrom carried to a remote scan head via an optical fiber. This reduces the size and weight of the scan head and reduces the temperature sensitivity of the scan head. The scan head may include an optical sensor for detecting light reflected from scanned symbols. Alternatively, the separate unit may house the sensor, and the same fiber or an additional fiber will collect the reflected light and transmit that light back to the sensor. The invention also encompasses a number of electromagnetic and piezoelectric systems for producing a scanning motion of the beam emitted by the scan head.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: May 28, 1996
    Assignee: Symbol Technologies, Inc.
    Inventors: Simon Bard, Joseph Katz, Miklos Stern, Yajun Li
  • Patent number: 5481101
    Abstract: To simplify a data reading apparatus for two-dimensional code data, a line sensor detection unit (30) for reading two-dimensional data includes an optical fiber band cable (3) bundling multiple optical fibers (31) of specified diameter in a band, and an upper end of the fibers is connected to a line sensor element (2) unit incorporated in the reading apparatus (S), and a lower end of the fibers is disposed opposite to an opening (11) of a specified size in the region of one or more two-dimensional code data in the bottom of the reading apparatus (S). The line sensor detection unit (3) including the optical fiber band cable (3) is disposed reciprocally parallel along the surface to be detected in an orthogonal direction, and the line sensor detection unit (30) is set movable within the range of the opening (11). A detection unit moving device (4) is disposed so as to read the two-dimensional code data.
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: January 2, 1996
    Assignee: Teiryo Sangyo Co., Ltd.
    Inventor: Hirokazu Yoshida
  • Patent number: 5463208
    Abstract: A task processing apparatus includes a main CPU, a plurality of sub-CPUs, a first starting section, a second starting section, and a notification section. The plurality of sub-CPUs independently execute a series of difference tasks set in advance in accordance with a predetermined sequence. The first starting section is arranged in the main CPU to output a first starting signal for starting the first sub-CPU, of the plurality of sub-CPUs, which executes a first task at the start of the series of tasks. The second starting section is arranged in each of the sub-CPUs except for the last sub-CPU. When the task in a given sub-CPU is completed, the second starting section outputs a second starting signal for starting the next sub-CPU which executes the next task. The notification section is arranged in the last sub-CPU of the plurality of sub-CPUs. The notification section supplies a processing completion signal indicating completion of the series of tasks to the main CPU when the last task is completed.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: October 31, 1995
    Assignee: Tamura Electric Works, Ltd.
    Inventors: Hiroshi Sasou, Tomoki Kaya, Tosiaki Watanabe, Shinji Fukaya
  • Patent number: 5422472
    Abstract: A miniature scan engine module for bar code reading and data collection systems utilizes a light source and a light collector flexurally supported on a platform which reciprocates on pivots defined by flexures. The light received from the code, as it is scanned, is collected along an optical collector having a surface area approximately equal to the surface area of one side of the scan engine. The optical collector in which the gratings are embedded faces the bar code and pivots with the scanning beam source (a laser diode). A pair of diffraction gratings in a surface of the optical collector which faces away from the code directs the incoming light so that it propagates internally in a substrate within the body of the collector, i.e. in the optic itself to photodetectors via reflective and light concentrating surfaces over the photodetector.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: June 6, 1995
    Assignee: PSC, Inc.
    Inventors: James M. Tavislan, Jay M. Eastman, Anna M. Quinn
  • Patent number: 5422469
    Abstract: The laser diode of an optical scanning system is located in a separate unit and light therefrom carried to a remote scan head via an optical fiber. This reduces the size and weight of the scan head and reduces the temperature sensitivity of the scan head. The scan head may include an optical sensor for detecting light reflected from scanned symbols. Alternatively, the separate unit may house the sensor, and the same fiber or an additional fiber will collect the reflected light and transmit that light back to the sensor. A portion of the optical fiber is attached to the optical scan unit such that the first end is free to vibrate within the optical scan unit in response to a mechanical force applied to the optical scan unit by a user, for example by shaking or striking the scan unit.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: June 6, 1995
    Assignee: Symbol Technologies, Inc.
    Inventors: Simon Bard, Howard Shepard
  • Patent number: 5404001
    Abstract: The laser diode of an optical scanning system is located in a separate unit and light therefrom carried to a remote scan head via an optical fiber. This reduces the size and weight as well as temperature sensitivity of the scan head. The separate unit may include an optical sensor for detecting light reflected from scanned symbols. If the separate unit houses the sensor, the same fiber or an additional fiber will collect the reflected light and transmit that light back to the sensor. An electromagnetic system produces a scanning motion of the beam emitted by the scan head where the optical fiber is attached to a magnet.
    Type: Grant
    Filed: October 8, 1992
    Date of Patent: April 4, 1995
    Inventors: Simon Bard, Joseph Katz, Miklos Stern, Yajun Li
  • Patent number: 5323000
    Abstract: An optical read head contains imaging optics for focusing incident light and light receiving optics arranged concentrically with respect to the imaging optics for receiving the light focused by the imaging optics and reflected from an object. The imaging optics and the light receiving optics are located on the same optical axis, the light receiving optics surrounding the imaging optics. The light receiving optics are also displaced forward in the direction of the incident light with respect to the imaging optics, an input face of the light receiving optics being inclined towards the optical axis. The optical read head is suitable for, among other things, the colour-selective scanning of material webs and other colour patterns and exhibits a high light receiving capability in addition to a high resolution capability.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: June 21, 1994
    Assignee: Firma Schablonentechnik Kufstein Gesellschaft m.b.H.
    Inventors: Josef Juffinger, Andreas Als
  • Patent number: 5306901
    Abstract: Equipment for the collection of bar-code data from a plurality of work stations in a central processing station comprises an optical scanner at each work station connected to the central station by means of an optical fiber; all optical fibers arriving from the work stations are assembled in a fiber-assembly bracket with their rear ends arranged in one or more parallel lines positioned opposite a lens system; and the lens system transfers the alternating light and dark signals issuing from each fiber end to the photo-sensitive end of a corresponding channel of a detector, preferably a charge-coupled device. The detector converts the received light signals into electrical analog signals and transfers these to the central processing unit, where they are converted into digital signals for processing and storing in memory means.
    Type: Grant
    Filed: March 17, 1992
    Date of Patent: April 26, 1994
    Inventors: Pinchas Schechner, Moshe Gavish
  • Patent number: 5266788
    Abstract: A laser scanner for a bar code reader has a laser source (41), a laser beam scanning means (31, etc.,) for scanning a bar code (B) on an object in a predetermined direction with a laser beam emitted from the laser source, a light emission window (25) for emitting the scanning beam toward the bar code on the object, and an optical detecting means (51) for detecting signal light reflected from the bar code. The laser beam scanning means and optical detecting means are integrally incorporated in a single substrate (20), and the light emission window is supported on the substrate by a transparent support (23, etc.).
    Type: Grant
    Filed: July 16, 1991
    Date of Patent: November 30, 1993
    Assignee: Fujitsu Limited
    Inventors: Kozo Yamazaki, Hiroyuki Ikeda, Fumio Yamagishi, Hirokazu Aritake, Masanori Ohkawa
  • Patent number: 5210411
    Abstract: A detection mark comprising a pattern formed from a thin phosphor layer which emits a light having a different wavelength from that of an excitation light irradiated on a surface side of the phosphor layer, and an undercoat layer which is formed on a rear surface side of the phosphor layer and reflects the excitation light, which mark can be detected by intermittently irradiating the excitation light to the mark and reading a light or afterglow from the phosphor layer.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: May 11, 1993
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Toshio Oshima, Masato Nishida, Tsunemi Ohiwa, Tsutomu Yamaguchi
  • Patent number: 5059777
    Abstract: A scanning system having a laser and a motor for spinning an optical mirror arrangement for sensing indicia such as bar codes is capable of turning off the laser and the motor during periods of extended inactivity in order to minimize wear of these components and to reduce the use of electricity. Changes in the ambient light level adjacent to the scanning system which are typical of human motion are detected and are used to produce an electrical signal which can be used to turn the laser and the motor back on.
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: October 22, 1991
    Assignee: NCR Corporation
    Inventors: Christopher J. Wittensoldner, Paul O. Detwiler
  • Patent number: 5028769
    Abstract: Apparatus for reading code elements which are relieved from a container. A source of light projects normally at the code elements while the container is rotated to sequentially illuminate each of the code elements. A sensor receives light which is reflected approximately normal to the surface of the container but avoids light which is reflected from the surface of each code element at an appreciable angle relative to the normal. The intensity of the reflections from regions of said container not containing a code element are relatively large compared to reflections received from portions of the container surface containing a code element and a threshold is set therebetween.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: July 2, 1991
    Assignee: Emhart Industries, Inc.
    Inventors: Mark P. Claypool, Gary C. Weber, Timothy W. Shay, Paul F. Scott
  • Patent number: 5021651
    Abstract: In an optical reader a lens is mounted in and held in a mounting recess at a portion of the tip of a casing accommodating a light emitting element and a light receiving element, the recess continuing from a tapered bore through which light from the light emitting element passes. The casing is formed by resin molding, and the mounting recess has a flat bottom surface. Therefore, the apparatus can be manufactured at low cost while preventing the lens from becoming damaged during its press fitting into the recess, and also enabling the lens to be securely held therein.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: June 4, 1991
    Assignee: Alps Electric Co., Ltd.
    Inventor: Hiroshi Ishikawa