公开(公告)号：GB2409558B

公开(公告)日：2005-08-10

申请号：GB0507471

申请日：2002-01-18

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： CURRY DANIEL ,  CORDES ELLEN ,  RYDER MICHAEL ,  WILD ROBERT ,  WILLINS BRUCE A ,  HAMILTON ALISTAIR R ,  BRIDGELALL RAJ

IPC: G06F21/32 ,  G06F21/35 ,  G06K7/10 ,  H04L29/06 ,  G06K7/14 ,  G10L15/20

公开(公告)号：CA2505482A1

公开(公告)日：2005-04-28

申请号：CA2505482

申请日：2004-08-23

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： GROSSFELD HENRY ,  KNADLE RICHARD T JR ,  BRIDGELALL RAJ ,  CHARYCH HAL E ,  PANDORF ROBERT P ,  NGOC MINH LUONG

IPC: H01Q9/28 ,  H01Q19/30

Abstract: A directional antenna array is provided that includes a driven element and a first parasitic element separated from the driven element with the first parasitic element and/or the driven element having a width that is greater than about one-half a percent (0.5%) of an free-space wavelength of the directional antenna array. Alternatively or in conjunction, the directional antenna array includes a balun structure that is configured to couple the driven element to at least one of an electromagnetic energy source and an electromagnetic sink, and the balun structure includes a dipole structure, a first feed point extending from the dipole structure and a second feed point extending from the first parasitic element.

公开(公告)号：CA2503407A1

公开(公告)日：2005-03-10

申请号：CA2503407

申请日：2004-08-27

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： BRIDGELALL RAJ

IPC: G06K7/00 ,  G06K19/07

Abstract: A RFID tag for use in an RFID system is disclosed. The RFID tag comprises an antenna operable to receive a carrier wave from an RFID reader. A state machine is coupled to the antenna and receives a backscattering command comprising a backscattering parameter for the RFID tag to use for backscattering the carrier wave. A modulator is coupled between the antenna and the state machine. The modulator produces a modulated backscatter signal , based at least partially dependent on the backscattering command.

公开(公告)号：CA2526577A1

公开(公告)日：2004-12-09

申请号：CA2526577

申请日：2004-04-27

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： BRIDGELALL RAJ ,  DURON MARK ,  KNADLE RICHARD T JR ,  CHARYCH HAL ,  NUDELMAN AVI

IPC: G08B13/14 ,  G06K20060101 ,  G06K19/077 ,  H01Q3/00 ,  H01Q9/00 ,  H01Q9/16

Abstract: An RFID relay device for an RFID transponder and methods are provided for relaying an RFID signal. The RFID relay device comprises at least two antenn a and a transmission line coupling the at least two antenna. In addition to th e two antenna and the transmission line, the RFID relay device comprises an impedance adjusting circuit coupled to the transmission line and configured for coupling to the RFID transponder.

公开(公告)号：CA2519970A1

公开(公告)日：2004-10-28

申请号：CA2519970

申请日：2004-04-19

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： WILLINS BRUCE A ,  BRIDGELALL RAJ ,  GOREN DAVID P

IPC: G06K7/00 ,  G06K19/07 ,  H04L12/28 ,  H04Q5/22

Abstract: Asset tags for use in a WLAN/RFID system are provided. The asset tag compris es a processor, an RFID antenna coupled to the processor and configured to receive interrogations from an RFID reader and send replies to the RFID reader; and a wireless transceiver coupled to the processor, the wireless transceiver configured to receive information from and send information to a wireless access port of a wireless local area network.

公开(公告)号：AU2004229817A1

公开(公告)日：2004-10-28

申请号：AU2004229817

申请日：2004-04-19

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： BRIDGELALL RAJ ,  GOREN DAVID P ,  WILLINS BRUCE A

IPC: G06K7/00 ,  G06K19/07 ,  H04L12/28 ,  H04Q5/22

Abstract: Asset tags for use in a WLAN/RFID system are provided. The asset tag comprises a processor, an RFID antenna coupled to the processor and configured to receive interrogations from an RFID reader and send replies to the RFID reader; and a wireless transceiver coupled to the processor, the wireless transceiver configured to receive information from and send information to a wireless access port of a wireless local area network.

公开(公告)号：DE69433196T2

公开(公告)日：2004-07-29

申请号：DE69433196

申请日：1994-11-11

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： BRIDGELALL RAJ ,  KATZ JOSEPH ,  GOREN DAVID P ,  DVORKIS PAUL ,  LI YAJUN

IPC: G06K7/10

Abstract: Optical scanning of barcode symbols is carried out first in an aim mode wherein the symbol is scanned using a first scan pattern that is relatively small and dense so as to be visible to the user, and thereafter using a second, larger, more robust scan pattern for decoding. The preferred scanner module has a scanner mirror which is mounted to a bracket by way of a leaf spring, allowing the mirror to oscillate in one direction. This is hung from a stationary chassis by means of two strips of mylar film, which are themselves protected against mechanical shock by pins which pass through holes in the bracket. The pins provide accurate alignment of the bracket with respect to the chassis.

公开(公告)号：AT269994T

公开(公告)日：2004-07-15

申请号：AT99120924

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

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：DE69433196D1

公开(公告)日：2003-11-06

申请号：DE69433196

申请日：1994-11-11

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： BRIDGELALL RAJ ,  KATZ JOSEPH ,  GOREN DAVID P ,  DVORKIS PAUL ,  LI YAJUN

IPC: G06K7/10

Abstract: Optical scanning of barcode symbols is carried out first in an aim mode wherein the symbol is scanned using a first scan pattern that is relatively small and dense so as to be visible to the user, and thereafter using a second, larger, more robust scan pattern for decoding. The preferred scanner module has a scanner mirror which is mounted to a bracket by way of a leaf spring, allowing the mirror to oscillate in one direction. This is hung from a stationary chassis by means of two strips of mylar film, which are themselves protected against mechanical shock by pins which pass through holes in the bracket. The pins provide accurate alignment of the bracket with respect to the chassis.

公开(公告)号：DE69623202T2

公开(公告)日：2003-05-28

申请号：DE69623202

申请日：1996-03-18

Applicant: SYMBOL TECHNOLOGIES INC

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

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

Abstract: An optical scanner such as a bar code scanner includes a segmented mirror (14), the individual sections of which have different profiles (16,18,20). By directing the scanning laser beam across the mirror, a plurality of scan lines are created, at different distances from the scanner. This provides increased flexibility by extending the scanner's working range. In alternative embodiments, a collector mirror and/or a scanning mirror may be segmented. In addition, beam shaping may be provided by reflecting the beam from one or more aplanar surfaces.