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公开(公告)号:CA2398779A1
公开(公告)日:2002-05-23
申请号:CA2398779
申请日:2001-11-14
Applicant: SYMBOL TECHNOLOGIES INC
Inventor: BRIDGELALL RAJ , ZEGELIN CHRIS , BEKRITSKY BENJAMIN J , KAWAGUCHI DEAN , GOREN DAVID
IPC: H04N7/173 , C07C67/52 , C07C67/54 , C07C69/82 , G01S1/02 , G01S5/02 , G01S5/06 , G01S5/12 , G01S19/27 , G02B26/10 , G03B11/00 , G03B17/02 , G04G7/02 , G06F1/16 , G06F11/10 , G06F15/00 , G06F21/24 , G06K17/00 , G06K19/00 , G06T9/00 , G09C1/00 , G09G3/02 , G10L19/00 , G11B20/10 , G11B20/14 , G11B20/18 , G11B20/22 , H01Q1/24 , H01Q21/24 , H03L7/091 , H03M13/03 , H03M13/13 , H03M13/23 , H03M13/29 , H04B1/707 , H04B7/005 , H04B7/24 , H04B7/26 , H04B14/00 , H04B17/00 , H04H60/72 , H04J3/06 , H04J13/00 , H04J13/16 , H04L1/00 , H04L7/00 , H04L9/00 , H04L9/08 , H04L9/10 , H04L9/32 , H04L12/24 , H04L12/26 , H04L12/28 , H04L12/54 , H04L25/02 , H04L25/03 , H04L25/49 , H04L25/497 , H04L27/10 , H04L27/156 , H04L27/18 , H04L29/06 , H04L29/12 , H04M1/247 , H04M1/66 , H04M1/725 , H04M3/22 , H04M11/00 , H04N5/225 , H04N5/38 , H04N5/44 , H04N5/46 , H04N5/64 , H04N5/66 , H04N5/74 , H04N5/76 , H04N5/765 , H04N5/775 , H04N5/85 , H04N5/907 , H04N5/92 , H04N7/01 , H04N7/08 , H04N7/16 , H04N7/26 , H04N7/36 , H04N7/52 , H04N9/31 , H04N9/64 , H04N9/79 , H04N9/804 , H04N17/00 , H04N21/41 , H04N21/414 , H04Q3/00 , H04W4/06 , H04W4/10 , H04W4/12 , H04W4/14 , H04W4/16 , H04W8/02 , H04W8/06 , H04W8/08 , H04W8/16 , H04W8/20 , H04W8/24 , H04W8/26 , H04W12/06 , H04W12/10 , H04W24/00 , H04W24/04 , H04W24/08 , H04W24/10 , H04W28/02 , H04W28/04 , H04W28/08 , H04W28/16 , H04W28/22 , H04W36/02 , H04W36/04 , H04W36/18 , H04W36/30 , H04W40/22 , H04W48/06 , H04W48/08 , H04W48/16 , H04W52/24 , H04W56/00 , H04W60/00 , H04W64/00 , H04W68/02 , H04W72/04 , H04W72/08 , H04W72/12 , H04W72/14 , H04W76/02 , H04W76/04 , H04W76/06 , H04W80/06 , H04W84/04 , H04W84/08 , H04W84/12 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/06 , H04W88/12 , H04W88/18 , H04Q7/00
Abstract: The location of unmodified wireless assets in a wireless communication netwo rk may be identified using time differences of arrivals of a communication sequence at different network receivers. Time-stamping devices may include correlator circuits in parallel with signal decoders to time-stamp communication sequences. Cellular wireless networks may be frequency- multiplexed to increase spatial time-stamping density. Tags may be attached to passive assets to provide location identification information to network devices. Locations of assets broadcasting standard 802.11 radio frequency structures may be identified. Noise inherent in correlating a communication sequence may be reduced by using a selected correlation function.
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公开(公告)号:DE60141283D1
公开(公告)日:2010-03-25
申请号:DE60141283
申请日:2001-11-14
Applicant: SYMBOL TECHNOLOGIES INC
Inventor: GOREN DAVID , KAWAGUCHI DEAN , BRIDGELALL RAJ , BEKRITSKY BENJAMIN J , ZEGELIN CHRIS
IPC: H04N7/173 , C07C67/52 , H04W64/00 , C07C67/54 , C07C69/82 , G01S1/02 , G01S5/02 , G01S5/06 , G01S5/12 , G01S19/27 , G02B26/10 , G03B11/00 , G03B17/02 , G04G7/02 , G06F1/16 , G06F11/10 , G06F15/00 , G06F21/24 , G06K17/00 , G06K19/00 , G06T9/00 , G09C1/00 , G09G3/02 , G10L19/00 , G11B20/10 , G11B20/14 , G11B20/18 , G11B20/22 , H01Q1/24 , H01Q21/24 , H03L7/091 , H03M13/03 , H03M13/13 , H03M13/23 , H03M13/29 , H04B1/707 , H04B7/005 , H04B7/24 , H04B7/26 , H04B14/00 , H04B17/00 , H04H60/72 , H04J3/06 , H04J13/00 , H04J13/16 , H04L1/00 , H04L7/00 , H04L9/00 , H04L9/08 , H04L9/10 , H04L9/32 , H04L12/24 , H04L12/26 , H04L12/28 , H04L12/54 , H04L25/02 , H04L25/03 , H04L25/49 , H04L25/497 , H04L27/10 , H04L27/156 , H04L27/18 , H04L29/06 , H04L29/12 , H04M1/247 , H04M1/66 , H04M1/725 , H04M3/22 , H04M11/00 , H04N5/225 , H04N5/38 , H04N5/44 , H04N5/46 , H04N5/64 , H04N5/66 , H04N5/74 , H04N5/76 , H04N5/765 , H04N5/775 , H04N5/85 , H04N5/907 , H04N5/92 , H04N7/01 , H04N7/08 , H04N7/16 , H04N7/26 , H04N7/36 , H04N7/52 , H04N9/31 , H04N9/64 , H04N9/79 , H04N9/804 , H04N17/00 , H04N21/41 , H04N21/414 , H04Q3/00 , H04W4/06 , H04W4/10 , H04W4/12 , H04W4/14 , H04W4/16 , H04W8/02 , H04W8/06 , H04W8/08 , H04W8/16 , H04W8/20 , H04W8/24 , H04W8/26 , H04W12/06 , H04W12/10 , H04W24/00 , H04W24/04 , H04W24/08 , H04W24/10 , H04W28/02 , H04W28/04 , H04W28/08 , H04W28/16 , H04W28/22 , H04W36/02 , H04W36/04 , H04W36/18 , H04W36/30 , H04W40/22 , H04W48/06 , H04W48/08 , H04W48/16 , H04W52/24 , H04W56/00 , H04W60/00 , H04W68/02 , H04W72/04 , H04W72/08 , H04W72/12 , H04W72/14 , H04W76/02 , H04W76/04 , H04W76/06 , H04W80/06 , H04W84/04 , H04W84/08 , H04W84/12 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/06 , H04W88/12 , H04W88/18
Abstract: The location of unmodified wireless assets in a wireless communication network may be identified using time differences of arrivals of a communication sequence at different network receivers. Time-stamping devices may include correlator circuits in parallel with signal decoders to time-stamp communication sequences. Cellular wireless networks may be frequency-multiplexed to increase spatial time-stamping density. Tags may be attached to passive assets to provide location identification information to network devices. Locations of assets broadcasting standard 802.11 radio frequency structures may be identified. Noise inherent in correlating a communication sequence may be reduced by using a selected correlation function.
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公开(公告)号:AT457619T
公开(公告)日:2010-02-15
申请号:AT01996978
申请日:2001-11-14
Applicant: SYMBOL TECHNOLOGIES INC
Inventor: GOREN DAVID , KAWAGUCHI DEAN , BRIDGELALL RAJ , BEKRITSKY BENJAMIN , ZEGELIN CHRIS
IPC: H04N7/173 , H04W64/00 , C07C67/52 , C07C67/54 , C07C69/82 , G01S1/02 , G01S5/02 , G01S5/06 , G01S5/12 , G01S19/27 , G02B26/10 , G03B11/00 , G03B17/02 , G04G7/02 , G06F1/16 , G06F11/10 , G06F15/00 , G06F21/24 , G06K17/00 , G06K19/00 , G06T9/00 , G09C1/00 , G09G3/02 , G10L19/00 , G11B20/10 , G11B20/14 , G11B20/18 , G11B20/22 , H01Q1/24 , H01Q21/24 , H03L7/091 , H03M13/03 , H03M13/13 , H03M13/23 , H03M13/29 , H04B1/707 , H04B7/005 , H04B7/24 , H04B7/26 , H04B14/00 , H04B17/00 , H04H60/72 , H04J3/06 , H04J13/00 , H04J13/16 , H04L1/00 , H04L7/00 , H04L9/00 , H04L9/08 , H04L9/10 , H04L9/32 , H04L12/24 , H04L12/26 , H04L12/28 , H04L12/54 , H04L25/02 , H04L25/03 , H04L25/49 , H04L25/497 , H04L27/10 , H04L27/156 , H04L27/18 , H04L29/06 , H04L29/12 , H04M1/247 , H04M1/66 , H04M1/725 , H04M3/22 , H04M11/00 , H04N5/225 , H04N5/38 , H04N5/44 , H04N5/46 , H04N5/64 , H04N5/66 , H04N5/74 , H04N5/76 , H04N5/765 , H04N5/775 , H04N5/85 , H04N5/907 , H04N5/92 , H04N7/01 , H04N7/08 , H04N7/16 , H04N7/26 , H04N7/36 , H04N7/52 , H04N9/31 , H04N9/64 , H04N9/79 , H04N9/804 , H04N17/00 , H04N21/41 , H04N21/414 , H04Q3/00 , H04W4/06 , H04W4/10 , H04W4/12 , H04W4/14 , H04W4/16 , H04W8/02 , H04W8/06 , H04W8/08 , H04W8/16 , H04W8/20 , H04W8/24 , H04W8/26 , H04W12/06 , H04W12/10 , H04W24/00 , H04W24/04 , H04W24/08 , H04W24/10 , H04W28/02 , H04W28/04 , H04W28/08 , H04W28/16 , H04W28/22 , H04W36/02 , H04W36/04 , H04W36/18 , H04W36/30 , H04W40/22 , H04W48/06 , H04W48/08 , H04W48/16 , H04W52/24 , H04W56/00 , H04W60/00 , H04W68/02 , H04W72/04 , H04W72/08 , H04W72/12 , H04W72/14 , H04W76/02 , H04W76/04 , H04W76/06 , H04W80/06 , H04W84/04 , H04W84/08 , H04W84/12 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/06 , H04W88/12 , H04W88/18
Abstract: The location of unmodified wireless assets in a wireless communication network may be identified using time differences of arrivals of a communication sequence at different network receivers. Time-stamping devices may include correlator circuits in parallel with signal decoders to time-stamp communication sequences. Cellular wireless networks may be frequency-multiplexed to increase spatial time-stamping density. Tags may be attached to passive assets to provide location identification information to network devices. Locations of assets broadcasting standard 802.11 radio frequency structures may be identified. Noise inherent in correlating a communication sequence may be reduced by using a selected correlation function.
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公开(公告)号:CA2398779C
公开(公告)日:2007-05-01
申请号:CA2398779
申请日:2001-11-14
Applicant: SYMBOL TECHNOLOGIES INC
Inventor: BEKRITSKY BENJAMIN J , BRIDGELALL RAJ , KAWAGUCHI DEAN , GOREN DAVID , ZEGELIN CHRIS
IPC: H04N7/173 , C07C67/52 , C07C67/54 , C07C69/82 , G01S1/02 , G01S5/02 , G01S5/06 , G01S5/12 , G01S19/27 , G02B26/10 , G03B11/00 , G03B17/02 , G04G7/02 , G06F1/16 , G06F11/10 , G06F15/00 , G06F21/24 , G06K17/00 , G06K19/00 , G06T9/00 , G09C1/00 , G09G3/02 , G10L19/00 , G11B20/10 , G11B20/14 , G11B20/18 , G11B20/22 , H01Q1/24 , H01Q21/24 , H03L7/091 , H03M13/03 , H03M13/13 , H03M13/23 , H03M13/29 , H04B1/707 , H04B7/005 , H04B7/24 , H04B7/26 , H04B14/00 , H04B17/00 , H04H60/72 , H04J3/06 , H04J13/00 , H04J13/16 , H04L1/00 , H04L7/00 , H04L9/00 , H04L9/08 , H04L9/10 , H04L9/32 , H04L12/24 , H04L12/26 , H04L12/28 , H04L12/54 , H04L25/02 , H04L25/03 , H04L25/49 , H04L25/497 , H04L27/10 , H04L27/156 , H04L27/18 , H04L29/06 , H04L29/12 , H04M1/247 , H04M1/66 , H04M1/725 , H04M3/22 , H04M11/00 , H04N5/225 , H04N5/38 , H04N5/44 , H04N5/46 , H04N5/64 , H04N5/66 , H04N5/74 , H04N5/76 , H04N5/765 , H04N5/775 , H04N5/85 , H04N5/907 , H04N5/92 , H04N7/01 , H04N7/08 , H04N7/16 , H04N7/26 , H04N7/36 , H04N7/52 , H04N9/31 , H04N9/64 , H04N9/79 , H04N9/804 , H04N17/00 , H04N21/41 , H04N21/414 , H04Q3/00 , H04W4/06 , H04W4/10 , H04W4/12 , H04W4/14 , H04W4/16 , H04W8/02 , H04W8/06 , H04W8/08 , H04W8/16 , H04W8/20 , H04W8/24 , H04W8/26 , H04W12/06 , H04W12/10 , H04W24/00 , H04W24/04 , H04W24/08 , H04W24/10 , H04W28/02 , H04W28/04 , H04W28/08 , H04W28/16 , H04W28/22 , H04W36/02 , H04W36/04 , H04W36/18 , H04W36/30 , H04W40/22 , H04W48/06 , H04W48/08 , H04W48/16 , H04W52/24 , H04W56/00 , H04W60/00 , H04W64/00 , H04W68/02 , H04W72/04 , H04W72/08 , H04W72/12 , H04W72/14 , H04W76/02 , H04W76/04 , H04W76/06 , H04W80/06 , H04W84/04 , H04W84/08 , H04W84/12 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/06 , H04W88/12 , H04W88/18
Abstract: The location of unmodified wireless assets in a wireless communication netwo rk may be identified using time differ- ences of arrivals of a communication sequence at different network receivers . Time-stamping devices may include correlator circuits in parallel with signal decoders to time-stamp communication sequences. Cellular wireless networks may be frequency-multiplexed to increase spatial time-stamping density. Tags may be attached to passive assets to provide location identification information to network devices. Locations of assets broadcasting standard 802.11 radio frequency structures may be identified. Noise inherent in correlating a communication sequence may be reduced by using a selected correlation function.
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公开(公告)号:BR0107786A
公开(公告)日:2002-10-22
申请号:BR0107786
申请日:2001-11-14
Applicant: SYMBOL TECHNOLOGIES INC
Inventor: BEKRITSKY BENJAMIN J , GOREN DAVID , BRIDGELALL RAJ , ZEGELIN CHRIS , KAWAGUCHI DEAN
IPC: H04N7/173 , C07C67/52 , C07C67/54 , C07C69/82 , G01S1/02 , G01S5/02 , G01S5/06 , G01S5/12 , G01S19/27 , G02B26/10 , G03B11/00 , G03B17/02 , G04G7/02 , G06F1/16 , G06F11/10 , G06F15/00 , G06F21/24 , G06K17/00 , G06K19/00 , G06T9/00 , G09C1/00 , G09G3/02 , G10L19/00 , G11B20/10 , G11B20/14 , G11B20/18 , G11B20/22 , H01Q1/24 , H01Q21/24 , H03L7/091 , H03M13/03 , H03M13/13 , H03M13/23 , H03M13/29 , H04B1/707 , H04B7/005 , H04B7/24 , H04B7/26 , H04B14/00 , H04B17/00 , H04H60/72 , H04J3/06 , H04J13/00 , H04J13/16 , H04L1/00 , H04L7/00 , H04L9/00 , H04L9/08 , H04L9/10 , H04L9/32 , H04L12/24 , H04L12/26 , H04L12/28 , H04L12/54 , H04L25/02 , H04L25/03 , H04L25/49 , H04L25/497 , H04L27/10 , H04L27/156 , H04L27/18 , H04L29/06 , H04L29/12 , H04M1/247 , H04M1/66 , H04M1/725 , H04M3/22 , H04M11/00 , H04N5/225 , H04N5/38 , H04N5/44 , H04N5/46 , H04N5/64 , H04N5/66 , H04N5/74 , H04N5/76 , H04N5/765 , H04N5/775 , H04N5/85 , H04N5/907 , H04N5/92 , H04N7/01 , H04N7/08 , H04N7/16 , H04N7/26 , H04N7/36 , H04N7/52 , H04N9/31 , H04N9/64 , H04N9/79 , H04N9/804 , H04N17/00 , H04N21/41 , H04N21/414 , H04Q3/00 , H04W4/06 , H04W4/10 , H04W4/12 , H04W4/14 , H04W4/16 , H04W8/02 , H04W8/06 , H04W8/08 , H04W8/16 , H04W8/20 , H04W8/24 , H04W8/26 , H04W12/06 , H04W12/10 , H04W24/00 , H04W24/04 , H04W24/08 , H04W24/10 , H04W28/02 , H04W28/04 , H04W28/08 , H04W28/16 , H04W28/22 , H04W36/02 , H04W36/04 , H04W36/18 , H04W36/30 , H04W40/22 , H04W48/06 , H04W48/08 , H04W48/16 , H04W52/24 , H04W56/00 , H04W60/00 , H04W64/00 , H04W68/02 , H04W72/04 , H04W72/08 , H04W72/12 , H04W72/14 , H04W76/02 , H04W76/04 , H04W76/06 , H04W80/06 , H04W84/04 , H04W84/08 , H04W84/12 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/06 , H04W88/12 , H04W88/18 , H04Q7/00
Abstract: The location of unmodified wireless assets in a wireless communication network may be identified using time differences of arrivals of a communication sequence at different network receivers. Time-stamping devices may include correlator circuits in parallel with signal decoders to time-stamp communication sequences. Cellular wireless networks may be frequency-multiplexed to increase spatial time-stamping density. Tags may be attached to passive assets to provide location identification information to network devices. Locations of assets broadcasting standard 802.11 radio frequency structures may be identified. Noise inherent in correlating a communication sequence may be reduced by using a selected correlation function.
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公开(公告)号:BRPI0107786B1
公开(公告)日:2017-01-24
申请号:BR0107786
申请日:2001-11-14
Applicant: SYMBOL TECHNOLOGIES INC
Inventor: BEKRITSKY BENJAMIN J , ZEGELIN CHRIS , GOREN DAVID , KAWAGUCHI DEAN , BRIDGELALL RAJ
IPC: G01S5/12 , H04N7/173 , C07C67/52 , C07C67/54 , C07C69/82 , G01S1/02 , G01S5/02 , G01S5/06 , G01S19/27 , G02B26/10 , G03B11/00 , G03B17/02 , G04G7/02 , G06F1/16 , G06F11/10 , G06F15/00 , G06F21/24 , G06K17/00 , G06K19/00 , G06T9/00 , G09C1/00 , G09G3/02 , G10L19/00 , G11B20/10 , G11B20/14 , G11B20/18 , G11B20/22 , H01Q1/24 , H01Q21/24 , H03L7/091 , H03M13/03 , H03M13/13 , H03M13/23 , H03M13/29 , H04B1/707 , H04B7/005 , H04B7/24 , H04B7/26 , H04B14/00 , H04B17/00 , H04H60/72 , H04J3/06 , H04J13/00 , H04J13/16 , H04L1/00 , H04L7/00 , H04L9/00 , H04L9/08 , H04L9/10 , H04L9/32 , H04L12/24 , H04L12/26 , H04L12/28 , H04L12/54 , H04L25/02 , H04L25/03 , H04L25/49 , H04L25/497 , H04L27/10 , H04L27/156 , H04L27/18 , H04L29/06 , H04L29/12 , H04M1/247 , H04M1/66 , H04M1/725 , H04M3/22 , H04M11/00 , H04N5/225 , H04N5/38 , H04N5/44 , H04N5/46 , H04N5/64 , H04N5/66 , H04N5/74 , H04N5/76 , H04N5/765 , H04N5/775 , H04N5/85 , H04N5/907 , H04N5/92 , H04N7/01 , H04N7/08 , H04N7/16 , H04N7/26 , H04N7/36 , H04N7/52 , H04N9/31 , H04N9/64 , H04N9/79 , H04N9/804 , H04N17/00 , H04N21/41 , H04N21/414 , H04Q3/00 , H04W4/06 , H04W4/10 , H04W4/12 , H04W4/14 , H04W4/16 , H04W8/02 , H04W8/06 , H04W8/08 , H04W8/16 , H04W8/20 , H04W8/24 , H04W8/26 , H04W12/06 , H04W12/10 , H04W24/00 , H04W24/04 , H04W24/08 , H04W24/10 , H04W28/02 , H04W28/04 , H04W28/08 , H04W28/16 , H04W28/22 , H04W36/02 , H04W36/04 , H04W36/18 , H04W36/30 , H04W40/22 , H04W48/06 , H04W48/08 , H04W48/16 , H04W52/24 , H04W56/00 , H04W60/00 , H04W64/00 , H04W68/02 , H04W72/04 , H04W72/08 , H04W72/12 , H04W72/14 , H04W76/02 , H04W76/04 , H04W76/06 , H04W80/06 , H04W84/04 , H04W84/08 , H04W84/12 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/06 , H04W88/12 , H04W88/18
Abstract: "métodos e aparelho para identificar localização de recursos em redes de comunicação". a localização de recursos sem fio não modificados em uma rede de comunicação sem fio pode ser identificada usando diferenças de instantes de chegadas de uma seqüência de comunicação em diferentes receptores da rede. dispositivos de marcação de tempo podem incluir circuitos correlacionadores em paralelo com decodificadores de sinal para seqüências de comunicação de marcação de tempo. redes sem fio celulares podem ser multiplexadas por freqüência para aumentar densidade de marcação de tempo espacial. etiquetas podem ser ligadas a recursos passivos para prover informação de identificação de localização para dispositivos de rede. localizações de recursos radiodifundindo estruturas de freqüência de rádio 802.11 padrões podem ser identificadas. ruído inerente na correlação de uma sequência de comunicação pode ser reduzido usando uma função de correlação selecionada.
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公开(公告)号:AU785280B2
公开(公告)日:2006-12-21
申请号:AU1978502
申请日:2001-11-14
Applicant: SYMBOL TECHNOLOGIES INC
Inventor: GOREN DAVID , KAWAGUCHI DEAN , BRIDGELALL RAJ , BEKRITSKY BENJAMIN J , ZEGELIN CHRIS
IPC: H04N7/173 , C07C67/52 , C07C67/54 , C07C69/82 , G01S1/02 , G01S5/02 , G01S5/06 , G01S5/12 , G01S19/27 , G02B26/10 , G03B11/00 , G03B17/02 , G04G7/02 , G06F1/16 , G06F11/10 , G06F15/00 , G06F21/24 , G06K17/00 , G06K19/00 , G06T9/00 , G09C1/00 , G09G3/02 , G10L19/00 , G11B20/10 , G11B20/14 , G11B20/18 , G11B20/22 , H01Q1/24 , H01Q21/24 , H03L7/091 , H03M13/03 , H03M13/13 , H03M13/23 , H03M13/29 , H04B1/707 , H04B7/005 , H04B7/24 , H04B7/26 , H04B14/00 , H04B17/00 , H04H60/72 , H04J3/06 , H04J13/00 , H04J13/16 , H04L1/00 , H04L7/00 , H04L9/00 , H04L9/08 , H04L9/10 , H04L9/32 , H04L12/24 , H04L12/26 , H04L12/28 , H04L12/54 , H04L25/02 , H04L25/03 , H04L25/49 , H04L25/497 , H04L27/10 , H04L27/156 , H04L27/18 , H04L29/06 , H04L29/12 , H04M1/247 , H04M1/66 , H04M1/725 , H04M3/22 , H04M11/00 , H04N5/225 , H04N5/38 , H04N5/44 , H04N5/46 , H04N5/64 , H04N5/66 , H04N5/74 , H04N5/76 , H04N5/765 , H04N5/775 , H04N5/85 , H04N5/907 , H04N5/92 , H04N7/01 , H04N7/08 , H04N7/16 , H04N7/26 , H04N7/36 , H04N7/52 , H04N9/31 , H04N9/64 , H04N9/79 , H04N9/804 , H04N17/00 , H04N21/41 , H04N21/414 , H04Q3/00 , H04W4/06 , H04W4/10 , H04W4/12 , H04W4/14 , H04W4/16 , H04W8/02 , H04W8/06 , H04W8/08 , H04W8/16 , H04W8/20 , H04W8/24 , H04W8/26 , H04W12/06 , H04W12/10 , H04W24/00 , H04W24/04 , H04W24/08 , H04W24/10 , H04W28/02 , H04W28/04 , H04W28/08 , H04W28/16 , H04W28/22 , H04W36/02 , H04W36/04 , H04W36/18 , H04W36/30 , H04W40/22 , H04W48/06 , H04W48/08 , H04W48/16 , H04W52/24 , H04W56/00 , H04W60/00 , H04W64/00 , H04W68/02 , H04W72/04 , H04W72/08 , H04W72/12 , H04W72/14 , H04W76/02 , H04W76/04 , H04W76/06 , H04W80/06 , H04W84/04 , H04W84/08 , H04W84/12 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/06 , H04W88/12 , H04W88/18
Abstract: The location of unmodified wireless assets in a wireless communication network may be identified using time differences of arrivals of a communication sequence at different network receivers. Time-stamping devices may include correlator circuits in parallel with signal decoders to time-stamp communication sequences. Cellular wireless networks may be frequency-multiplexed to increase spatial time-stamping density. Tags may be attached to passive assets to provide location identification information to network devices. Locations of assets broadcasting standard 802.11 radio frequency structures may be identified. Noise inherent in correlating a communication sequence may be reduced by using a selected correlation function.
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公开(公告)号:AU1978502A
公开(公告)日:2002-05-27
申请号:AU1978502
申请日:2001-11-14
Applicant: SYMBOL TECHNOLOGIES INC
Inventor: GOREN DAVID , KAWAGUCHI DEAN , BRIDGELALL RAJ , BEKRITSKY BENJAMIN J , ZEGELIN CHRIS
IPC: H04N7/173 , C07C67/52 , C07C67/54 , C07C69/82 , G01S1/02 , G01S5/02 , G01S5/06 , G01S5/12 , G01S19/27 , G02B26/10 , G03B11/00 , G03B17/02 , G04G7/02 , G06F1/16 , G06F11/10 , G06F15/00 , G06F21/24 , G06K17/00 , G06K19/00 , G06T9/00 , G09C1/00 , G09G3/02 , G10L19/00 , G11B20/10 , G11B20/14 , G11B20/18 , G11B20/22 , H01Q1/24 , H01Q21/24 , H03L7/091 , H03M13/03 , H03M13/13 , H03M13/23 , H03M13/29 , H04B1/707 , H04B7/005 , H04B7/24 , H04B7/26 , H04B14/00 , H04B17/00 , H04H60/72 , H04J3/06 , H04J13/00 , H04J13/16 , H04L1/00 , H04L7/00 , H04L9/00 , H04L9/08 , H04L9/10 , H04L9/32 , H04L12/24 , H04L12/26 , H04L12/28 , H04L12/54 , H04L25/02 , H04L25/03 , H04L25/49 , H04L25/497 , H04L27/10 , H04L27/156 , H04L27/18 , H04L29/06 , H04L29/12 , H04M1/247 , H04M1/66 , H04M1/725 , H04M3/22 , H04M11/00 , H04N5/225 , H04N5/38 , H04N5/44 , H04N5/46 , H04N5/64 , H04N5/66 , H04N5/74 , H04N5/76 , H04N5/765 , H04N5/775 , H04N5/85 , H04N5/907 , H04N5/92 , H04N7/01 , H04N7/08 , H04N7/16 , H04N7/26 , H04N7/36 , H04N7/52 , H04N9/31 , H04N9/64 , H04N9/79 , H04N9/804 , H04N17/00 , H04N21/41 , H04N21/414 , H04Q3/00 , H04W4/06 , H04W4/10 , H04W4/12 , H04W4/14 , H04W4/16 , H04W8/02 , H04W8/06 , H04W8/08 , H04W8/16 , H04W8/20 , H04W8/24 , H04W8/26 , H04W12/06 , H04W12/10 , H04W24/00 , H04W24/04 , H04W24/08 , H04W24/10 , H04W28/02 , H04W28/04 , H04W28/08 , H04W28/16 , H04W28/22 , H04W36/02 , H04W36/04 , H04W36/18 , H04W36/30 , H04W40/22 , H04W48/06 , H04W48/08 , H04W48/16 , H04W52/24 , H04W56/00 , H04W60/00 , H04W64/00 , H04W68/02 , H04W72/04 , H04W72/08 , H04W72/12 , H04W72/14 , H04W76/02 , H04W76/04 , H04W76/06 , H04W80/06 , H04W84/04 , H04W84/08 , H04W84/12 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/06 , H04W88/12 , H04W88/18 , H04Q7/00
Abstract: The location of unmodified wireless assets in a wireless communication network may be identified using time differences of arrivals of a communication sequence at different network receivers. Time-stamping devices may include correlator circuits in parallel with signal decoders to time-stamp communication sequences. Cellular wireless networks may be frequency-multiplexed to increase spatial time-stamping density. Tags may be attached to passive assets to provide location identification information to network devices. Locations of assets broadcasting standard 802.11 radio frequency structures may be identified. Noise inherent in correlating a communication sequence may be reduced by using a selected correlation function.
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公开(公告)号:AT534919T
公开(公告)日:2011-12-15
申请号:AT04816047
申请日:2004-12-30
Applicant: SYMBOL TECHNOLOGIES INC
Inventor: ZEGELIN CHRIS , GOREN DAVID
Abstract: A radio signal based object location system is provided wherein location devices are provided on articles for use in locating the articles, and wherein a database is maintained relating characteristics of radio signal transmissions between the location devices and fixed devices to locations within an area. A method is provided for maintaining the database to reflect propagation conditions. Location devices are provided at fixed positions within the area. Data representing radio signal transmission characteristics between the fixed position location devices and fixed devices is recorded. Transmissions between the fixed position location devices and the fixed devices is monitored to determine changes in the characteristics of radio signal transmissions from the recorded data.
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公开(公告)号:ZA200204590B
公开(公告)日:2004-01-27
申请号:ZA200204590
申请日:2002-06-07
Applicant: SYMBOL TECHNOLOGIES INC
Inventor: GOREN DAVID , KAWAGUCHI DEAN , BRIDGELALL RAJ , BEKRITSKY BENJAMIN J , ZEGELIN CHRIS
IPC: H04B20060101 , H04J20060101 , H04Q20060101 , H04Q
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