公开(公告)号：AT184123T

公开(公告)日：1999-09-15

申请号：AT91122402

申请日：1991-12-30

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： DVORKIS PAUL ,  GOREN DAVID P ,  SPITZ GLENN S ,  MCGLYNN DANIEL R

IPC: G06K7/10

Abstract: A system for reading bar code symbols or the like, having a scanner for generating a laser beam directed toward a target and producing a narrow first raster scanning pattern that enables the user to manually aim and direct the beam to the location desired by the user and a relatively wider second raster scanning pattern that sweeps an entire symbol to be read, and a detector for receiving reflected light from such symbol to produce electrical signals corresponding to data represented by such symbol.

公开(公告)号：DE69638086D1

公开(公告)日：2009-12-31

申请号：DE69638086

申请日：1996-01-26

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： BARD SIMON ,  KATZ JOSEPH ,  HEIMAN F ,  DVORKIS PAUL ,  BARKAN EDWARD ,  SWARTZ JEROME ,  METLITSKY BORIS ,  STERN MIKLOS ,  KRICHEVER MARK ,  DEVITA JOSEPH ,  SEARLE DON ,  MAIMAN MITCHELL ,  MCDONALD JAY ,  POTTER JOHN ,  CHOW GONZAGA JOSEPH

IPC: G06K7/10 ,  G04B37/00 ,  G06F1/16 ,  G06K19/06

Abstract: A data transfer system for an LCD price tagging arrangement includes an electro-optical scanner and one or more LCD price tags. Each LCD price tag is associated with a given product in a retail outlet and carries price or other information relating to that product. The LCD price tag includes an electro-optical detector for detecting a beam generated by the scanner. The scanner light beam generating source is modulated such that the beam carries product information. Accordingly the price or other product information on the LCD price tag can be quickly and efficiently updated.

公开(公告)号：CA2508602C

公开(公告)日：2008-09-30

申请号：CA2508602

申请日：2003-12-17

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： DVORKIS PAUL ,  SHI TSI DAVID ,  CARLSON BRAD ,  BREYTMAN ALEX ,  KRICHEVER MARK

IPC: G02B7/00 ,  G02B7/09 ,  G02B7/10 ,  G06K7/00 ,  G06K7/10 ,  G06K19/14 ,  G06V30/224

Abstract: Several optical systems for imaging engines of imaging optical code readers are disclosed. Each optical system includes the abilities to change the dept h of field of the imaging field and to adjust a focus quality of the imaging field. The disclosed structures for changing the depth of field of the disclosed optical systems allow for the automatic or manual selection of one of a plurality of depths of field.

公开(公告)号：DE69535625T2

公开(公告)日：2008-02-07

申请号：DE69535625

申请日：1995-10-27

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： DVORKIS PAUL ,  BARKAN EDWARD ,  CHARYCH HAROLD ,  GIEBEL JAMES ,  OSTERWEIL STEPHEN ,  KUMAR SUNDEEP ,  BARILE JOHN ,  POLONIEWICZ PAUL R ,  BIUSO ANTHONY D ,  CHEW STEVEN M

IPC: G06K7/10 ,  G06K7/14

Abstract: A scanner determines whether a target is a bar code symbol and, if so, whether that symbol is one-dimensional. For two-dimensional symbols, the scanner aligns a scanning pattern with the symbol and expands the scanning pattern to reach only to the top and bottom edge of the symbol, not beyond. The scanner also has a microprocessor-control scanning engine that uses a coil to drive a scanning element and pick up feed back signals from the scanning element. A pulse-width-modulated regulator also provides fast and efficient operation for driving the coil. The scanning engine can also be designed to generate a pattern that precesses across the target, and a powerful interface to the scanning engine allows decoding and control logic to work efficiently with and independently of the scan engine.

公开(公告)号：CA2508035C

公开(公告)日：2008-01-29

申请号：CA2508035

申请日：2003-12-17

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： BREYTMAN ALEX ,  YAVID DMITRIY ,  KRICHEVER MARK ,  HATTON EDWARD ,  DVORKIS PAUL ,  PATEL MEHUL ,  CARLSON BRADLEY S ,  BIANCULLI THOMAS D

IPC: G06K7/10 ,  G06K7/00 ,  G06K19/14

Abstract: An optical code reader is provided including imaging circuitry having an arr ay of photo sensing devices capable of sensing light incident on the array and outputting a plurality of pixel signals corresponding to the sensed light. The reader further includes control and logic circuitry for receiving a subset of the plurality of pixel signals, processing the received subset of the plurality of pixel signals for determining if the received pix el signals meet at least one predetermined condition, and outputting a selection control signal in accordance with the processing results. A focus analysis software module executable by the control and logic circuitry determines the focus quality of the received pixel signals. A selector control software module executable by the control and logic circuitry generates a selection control signal in accordance with the determined focus quality of the received pixel signals. Selector circuitry selectively enables the imaging circuitry to output selected pixel signals of the plurality of pixel signals in accordance with the selection control signal.

公开(公告)号：CA2580492C

公开(公告)日：2007-10-09

申请号：CA2580492

申请日：1996-03-04

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： TSI DAVID ,  BRIDGELALL RAJ ,  HE DUANFENG ,  KRICHEVER MARK ,  METLITSKY BORIS ,  DVORKIS PAUL ,  BARKAN EDWARD ,  KAHN JOEL ,  ISAAC RICHARD ,  KATZ JOSEPH ,  GUREVICH VLADIMIR ,  SHEPARD HOWARD

IPC: G02B26/10 ,  G06K7/10 ,  G06K7/14 ,  G06V30/224

Abstract: The invention relates to optical scanners. The invention comprises a multi-range scanner assembly for electro-optically reading indicia having parts of differing light reflectivity on a target located at a variable distance from the assembly, comprising: (a) a first light source for producing a first beam for short range scanning operations; (b) a second light source for producing a second beam for long range scanning operations; (c) a scanning element including a scanning mirror for causing the first and second beams to be alternately scanned over a field of view; (d) a collection optical system for collecting light reflected from the field of view; and (e) an optical detector for detecting light directed thereto by the collection optical system and for generating electrical signals corresponding to the reflected light.

公开(公告)号：DE69933059T2

公开(公告)日：2007-03-15

申请号：DE69933059

申请日：1999-03-26

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： DVORKIS PAUL ,  SHEPARD HOWARD ,  BARKAN EDWARD ,  BARD SIMON ,  GROSSFELD HENRY ,  DRYZMALA MARK ,  CHARYCH HAL ,  BRIDGELALL RAJ ,  TSI DAVID ,  JENKINS IAN ,  HUNG-JWO CHIN ,  KOONTZ THEODORE

IPC: G06K7/10 ,  G02B26/10 ,  G06K7/14 ,  H04N1/113

Abstract: An optical scan module, for example for an optical scanner, includes an integrally molded plastics material member which defines not only the laser focusing lens, but also the laser focusing aperture and the collection mirror. In addition, the molded member may act to house and to locate both a semiconductor laser and a photodetector, thereby ensuring easy and accurate placement of those elements within the scanning assembly. The optical assembly may be in modular form, mounted onto a common printed circuit board with a beam scanner.

公开(公告)号：DE69933059D1

公开(公告)日：2006-10-12

申请号：DE69933059

申请日：1999-03-26

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： DVORKIS PAUL ,  SHEPARD HOWARD ,  BARKAN EDWARD ,  BARD SIMON ,  GROSSFELD HENRY ,  DRYZMALA MARK ,  CHARYCH HAL ,  BRIDGELALL RAJ ,  TSI DAVID ,  JENKINS IAN ,  HUNG-JWO CHIN ,  KOONTZ THEODORE

IPC: G06K7/10 ,  G02B26/10 ,  G06K7/14 ,  H04N1/113

Abstract: An optical scan module, for example for an optical scanner, includes an integrally molded plastics material member which defines not only the laser focusing lens, but also the laser focusing aperture and the collection mirror. In addition, the molded member may act to house and to locate both a semiconductor laser and a photodetector, thereby ensuring easy and accurate placement of those elements within the scanning assembly. The optical assembly may be in modular form, mounted onto a common printed circuit board with a beam scanner.

公开(公告)号：DE69931532D1

公开(公告)日：2006-06-29

申请号：DE69931532

申请日：1999-11-02

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： BARKAN ED ,  KOONTZ THEODORE ,  SCHUESSLER FREDERICK ,  CHU CARY ,  JWO CHINH-HUNG ,  CHARYCH HAL ,  BRIDGELALL RAJ ,  SHEPARD HOWARD ,  SANDERS ROBERT ,  MAIMAN MITCH ,  DVORKIS PAUL ,  BORIOTTI JOSEPH ,  KRICHEVER MARK ,  GUREVICH VLADIMIR ,  BREYTMAN ALEXANDER

IPC: G06K7/10 ,  G06K7/12 ,  H03G3/32

Abstract: The disclosure relates to systems and techniques for reading optical codes, and more particularly to code reading systems with plural imaging or scanning modules pointed in various directions toward a target volume, which increase the likelihood that a code symbol on an arbitrarily oriented object in the target volume will be read. Other aspects of the invention relate to use and configuration of hand held readers, docking devices, operator side rails, arched tunnels and mirrors for increasing the coverage of the system. Additional aspects of the invention relate to components associated with point of sale installations or code reading terminals including integrated scales, input pads, system controls and displays.

公开(公告)号：CA2582399A1

公开(公告)日：2006-05-11

申请号：CA2582399

申请日：2005-09-28

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： GOLDMAN RON ,  WOOD FREDERICK F ,  YAVID DMITRIY ,  TAN CHINH ,  DVORKIS PAUL

IPC: G03B21/00

Abstract: A plurality of image projection modules is operative for causing selected pixels in overlapping raster patterns to be illuminated to produce a large size image of high resolution of VGA quality in monochrome or color. The selected pixels in an overlap region of the patterns are illuminated at a lesser intensity to provide uniform brightness over the image. Multiple single mode lasers, or a multimode laser with an aperture stop, are employed to increase laser output power. Speckle noise is reduced by controlling the optical transmission characteristic of a projection screen. Three-dimensional images are generated by moving the screen. Cross-coupling between drive and feedback mechanisms in image projection is reduced for better image quality.