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101.发明专利
公开(公告)号：FR2823584B1
公开(公告)日：2011-07-29
申请号：FR0115119
申请日：2001-11-22
Applicant: SYMBOL TECHNOLOGIES INC
Inventor： CURRY DANIEL , CORDES ELLEN , RYDER MICHAEL , WILD ROBERT , WILLINS BRUCE A , HAMILTON ALISTAIR , BRIDGELALL RAJ
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公开(公告)号：AU2010241398A1
公开(公告)日：2010-12-02
申请号：AU2010241398
申请日：2010-11-12
Applicant: SYMBOL TECHNOLOGIES INC
Inventor： BRIDGELALL RAJ , DURON MARK WILLIAM , STRZELCZYK MARTIN J
Abstract: A multi-resolution object location system and method for locating objects is provided. The multi-resolution system and method uses a long-range object locator together with a more precise RFID locator to efficiently and accurately determine the location of objects that include an RFID tag. The long-range object locator has a relatively longer range and can cover a relatively large area to determine the general location of the object within the large area. The RFID locator has a relatively shorter range, but is able to locate the object more precisely. The object location system uses the long-range locator to first determine the general location of the object, and then the RFID locator is used to determine a more accurate location of the object. Thus, the multi-resolution object location system is able to provide both a long range location of objects over a large area and a precise location of objects.
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公开(公告)号：DE602004019683D1
公开(公告)日：2009-04-09
申请号：DE602004019683
申请日：2004-12-09
Applicant: SYMBOL TECHNOLOGIES INC
Inventor： BRIDGELALL RAJ
Abstract: A system is provided for communication and sensory monitoring. The system comprises a plurality of nodes installed as a network in a structure. Each of the plurality of nodes comprises an internode transceiver for wireless communication between nodes, a wireless network transceiver for wireless communication with one or more wireless devices, one or more sensors for monitoring the environment of the structure and a processor coupled to the internode transceiver, the wireless network transceiver and the one or more sensors to exchange data with the internode transceiver, the wireless network transceiver and the one or more sensors devices coupled to the processor and process the data. The system also includes a wide area network bridge coupled to the plurality of network nodes. The network bridge receives data from the plurality of network nodes and passes the information to a computer network for processing.
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公开(公告)号：DE602005004605T2
公开(公告)日：2009-02-19
申请号：DE602005004605
申请日：2005-03-16
Applicant: SYMBOL TECHNOLOGIES INC
Inventor： BRIDGELALL RAJ , DURON MARK WILLIAM , STRZELCZYK MARTIN J
Abstract: A multi-resolution object location system and method for locating objects is provided. The multi-resolution system and method uses a long-range object locator together with a more precise RFID locator to efficiently and accurately determine the location of objects that include an RFID tag. The long-range object locator has a relatively longer range and can cover a relatively large area to determine the general location of the object within the large area. The RFID locator has a relatively shorter range, but is able to locate the object more precisely. The object location system uses the long-range locator to first determine the general location of the object, and then the RFID locator is used to determine a more accurate location of the object. Thus, the multi-resolution object location system is able to provide both a long range location of objects over a large area and a precise location of objects.
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公开(公告)号：DE60223489T2
公开(公告)日：2008-09-18
申请号：DE60223489
申请日：2002-03-19
Applicant: SYMBOL TECHNOLOGIES INC
Inventor： BRIDGELALL RAJ
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Patent Agency Ranking
公开(公告)号：CA2580841C
公开(公告)日：2008-08-05
申请号：CA2580841
申请日：1996-03-04
Applicant: SYMBOL TECHNOLOGIES INC
Inventor： KAHN JOEL , BARKAN EDWARD , METLITSKY BORIS , BRIDGELALL RAJ , GUREVICH VLADIMIR , HE DUANFENG , KRICHEVER MARK , KATZ JOSEPH , DVORKIS PAUL , SHEPARD HOWARD , TSI DAVID , ISAAC RICHARD
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.
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公开(公告)号：DE602005004605D1
公开(公告)日：2008-03-20
申请号：DE602005004605
申请日：2005-03-16
Applicant: SYMBOL TECHNOLOGIES INC
Inventor： BRIDGELALL RAJ , DURON MARK WILLIAM , STRZELCZYK MARTIN J
Abstract: A multi-resolution object location system and method for locating objects is provided. The multi-resolution system and method uses a long-range object locator together with a more precise RFID locator to efficiently and accurately determine the location of objects that include an RFID tag. The long-range object locator has a relatively longer range and can cover a relatively large area to determine the general location of the object within the large area. The RFID locator has a relatively shorter range, but is able to locate the object more precisely. The object location system uses the long-range locator to first determine the general location of the object, and then the RFID locator is used to determine a more accurate location of the object. Thus, the multi-resolution object location system is able to provide both a long range location of objects over a large area and a precise location of objects.
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公开(公告)号：DE69636205T2
公开(公告)日：2007-04-26
申请号：DE69636205
申请日：1996-05-31
Applicant: SYMBOL TECHNOLOGIES INC
Inventor： GOREN DAVID , BRIDGELALL RAJ , KUCHENBROOD HARRY , SERBIN GARY , BARKAN EDWARD , SHELLHAMER STEPHEN , PANDOLFO DONNA , CIPRIANI GUY , LI YAJUN , CAMPANELLI JOSEPH , KATZ JOSEPH , MCGLYNN DANIEL
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公开(公告)号：DE69929839T2
公开(公告)日：2006-09-21
申请号：DE69929839
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
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.
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公开(公告)号：CA2557341A1
公开(公告)日：2005-09-15
申请号：CA2557341
申请日：2005-02-25
Applicant: SYMBOL TECHNOLOGIES INC
Inventor： STRZELCZYK MARTIN J , DURON MARK WILLIAM , BRIDGELALL RAJ
Abstract: A system and method is provided for locating objects using RFID tags. The system and method uses an RFID reader and a distance calculator to efficiently and accurately determine the location of objects that include an RFID tag. The RFID reader transmits a plurality of signals to the RFID tag, with the plurality of signals having different fundamental frequencies. In response, the RFID tag backscatter modulates the plurality of transmitted signals to create a plurality of backscatter modulated signals. The RFID reader receives and demodulates the plurality of backscatter modulated signals. The distance calculator determines the phase of the plurality of backscatter modulated signals and determines a rate of change of the phase in the backscatter modulated signals with respect to the rate of change in the fundamental frequency of the transmitted signals and uses this information to calculate the distance to the RFID tag.
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