Invention Application
- Patent Title: WIRELESS CLOCK SYNCHRONIZATION
- Patent Title (中): 无线时钟同步
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Application No.: PCT/US0143589Application Date: 2001-11-14
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Publication No.: WO0241545A9Publication Date: 2003-05-30
- Inventor: BEKRITSKY BENJAMIN J , GOREN DAVID , SAKODA WILLIAM , BRIDGELALL RAJ
- Applicant: SYMBOL TECHNOLOGIES INC
- Assignee: SYMBOL TECHNOLOGIES INC
- Current Assignee: SYMBOL TECHNOLOGIES INC
- Priority: US24835700 2000-11-14; US27025401 2001-02-20
- Main IPC: H04N7/173
- 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:
A system and method for synchronizing internal clocks of receiving stations of a locating system are described. A beacon transmits reference data packets at a known position. A first arrival time is compared to a second arrival time to determine a correlated arrival time data. The first arrival time is a time of reception of the reference data packets by a first receiving station, and the second arrival time is a time of reception of the reference data packets by a second receiving station. A linear polynomial fit is computed as a function of the correlated arrival time data and the first and second arrival times. Times of arrival of data packets at the first and second receiving stations is synchronized as a function of the linear polynomial fit.
Public/Granted literature
- WO0241545A2 WIRELESS CLOCK SYNCHRONIZATION Public/Granted day:2002-05-23
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