公开(公告)号：DE69026678T2

公开(公告)日：1996-12-12

申请号：DE69026678

申请日：1990-10-08

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： SHEPARD HOWARD M ,  METLITSKY BORIS ,  KRICHEVER MARK

IPC: G06K7/10

Abstract: Electrical power consumption is saved in a low-cost scanner for reading bar code symbols by oscillating one of the scanner components either by mechanical power alone or by a low-power electrical drive.

公开(公告)号：DE68925110D1

公开(公告)日：1996-01-25

申请号：DE68925110

申请日：1989-10-31

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： KRICHEVER MARK ,  SHEPARD HOWARD M ,  GOFMAN YURI

IPC: G06K7/10

公开(公告)号：DE68922180T2

公开(公告)日：1995-11-30

申请号：DE68922180

申请日：1989-10-11

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： KRICHEVER MARK ,  GOFMAN YURI

IPC: G02B7/00 ,  G02B7/02 ,  G02B7/04 ,  G02B27/00 ,  G02B27/62 ,  G06K7/10 ,  H01S5/00

公开(公告)号：CA1329263C

公开(公告)日：1994-05-03

申请号：CA610046

申请日：1989-08-31

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： KRICHEVER MARK ,  METLITSKY BORIS

IPC: G06K7/10 ,  G06K7/14 ,  G06K19/06 ,  G06K9/18 ,  G06K9/20

Abstract: BAR CODE READER In a bar code reader, a field of view which includes a symbol to be read is imaged upon a light-responsive array such as a CCD imager device. The output of this array is transferred to a memory array to provide a bit-mapped type of binary representation of the image including the symbol. The memory is scanned (instead of the field of view itself being mechanically scanned) to recognize and decode the symbol. Because the angular orientation of the symbol is variable, this binary representation may be interpreted to determine how the memory array is to be scanned to recognize the bar code symbol. For example, the distinctive patterns of characters used in bar codes may be found by scanning the memory and the relative positions of these patterns interpreted to determine the position, size and shape of the symbol in the memory, thereby defining at what angular displacement the memory array need be addressed to traverse the rows of the bar code symbol. Or, the memory array may be simply scanned using preselected scan lines (beginning with a raster-type scan) until code recognition is obtained.

公开(公告)号：CA1327850C

公开(公告)日：1994-03-15

申请号：CA598672

申请日：1989-05-04

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： BARKAN EDWARD ,  KRICHEVER MARK ,  SHEPARD HOWARD ,  SWARTZ JEROME ,  METLITSKY BORIS

IPC: G02B26/10 ,  G06K7/10 ,  G06K9/18

Abstract: The present invention relates to a bar code symbol scanning systems. The bar code scanning system is comprised of a laser, optical and sensor components. In the present invention a mirrorless scanner arrangement mounts one or more of these components on a drive for repetitive reciprocating movement either about an axis or in a plane to effect scanning. A photodetector can also be moved in a reciprocating motion. In another embodiment, the photodetector is fixed and a light receiving lens is moved in a reciprocating motion to focus a received light beam on the fixed photodetector. In yet another embodiment received light merely falls onto the surface of a fixed photodetector.

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：CA2507997C

公开(公告)日：2008-10-28

申请号：CA2507997

申请日：2003-12-17

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： BREYTMAN ALEX ,  KRICHEVER MARK ,  SHI TSI DAVID ,  CARLSON BRADLEY S ,  YAVID DMITRIY

IPC: G06K7/10 ,  G01S7/48 ,  G01S17/46 ,  G02B7/09 ,  G06K7/00 ,  G06K19/14 ,  G06V30/224

Abstract: An image scanning device is provided which includes a system for determinin g the distance to a target to be scanned. The image scanning device includes a n optical system and an image sensor array for focusing a light beam and imaging the target. The device preferably includes an automatic focusing system for adjusting the position of the optical system in order to adjust the focal point, and thereby focus the ima ge of the target onto the image sensor array. In one embodiment of the image scanning device, the distance is determined by analyzing a collimated aiming pattern formed by collimating the light beam. In another embodiment, the distance is determined by analyzi ng a speckle pattern caused by the speckle effect upon the light beam hitting the target.

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：CA2508597C

公开(公告)日：2008-07-08

申请号：CA2508597

申请日：2003-12-17

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： KRICHEVER MARK ,  BREYTMAN ALEX

IPC: H04N5/30 ,  G02B26/08 ,  G06K7/00 ,  G06K7/10 ,  G06K19/14 ,  H04N5/232

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.

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.