Communications: directive radio wave systems and devices (e.g. – Determining distance
Reexamination Certificate
2005-11-15
2010-11-30
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Determining distance
C356S005010, C356S005100, C367S127000
Reexamination Certificate
active
07843379
ABSTRACT:
The invention relates to a symmetrical multi-path method for determining the spatial distance between two transmitter-receivers. Both transmitter-receivers set off at least one signal round in each case. A signal round comprises the steps:a) transmitting at least one request data frame of a first transmitter-receiver to a second transmitter-receiver at a request transmitting time (TTA1, TTB2),b) receiving the request data frame at the second transmitter-receiver at a request receiving time (TRB1, TRA2),c) transmitting a reply data frame from the second transmitter-receiver to the first transmitter-receiver at a reply transmitting time (TTB1, TTA2), which has a respective reply time interval (TreplyB1, TreplyA2) from the request receiving time (TRB1, TRA2) and detecting the reply time interval,d) receiving the reply data frame at the first transmitter-receiver setting off the signal round and detecting an allocated reply receiving time (TRA1, TRB2).The signal rounds are performed in such a way that the reply time intervals (TreplyA2, TreplyB1) are either identical or have a difference, in the case of performing more than one signal round set off by each transmitter-receiver an average difference, the amount of which is a maximum of 200 microseconds.
REFERENCES:
patent: 3810179 (1974-05-01), Merrick
patent: 4113382 (1978-09-01), Freudenschuss
patent: 5510800 (1996-04-01), McEwan
patent: 5589838 (1996-12-01), McEwan
patent: 5661490 (1997-08-01), McEwan
patent: 5748891 (1998-05-01), Fleming et al.
patent: 5859986 (1999-01-01), Marenin
patent: 5959568 (1999-09-01), Woolley
patent: 6002708 (1999-12-01), Fleming et al.
patent: 6385268 (2002-05-01), Fleming et al.
patent: 6400754 (2002-06-01), Fleming et al.
patent: 6483454 (2002-11-01), Torre et al.
patent: 6522395 (2003-02-01), Bamji et al.
patent: 2003/0134647 (2003-07-01), Santhoff et al.
patent: 2003/0232620 (2003-12-01), Runkle et al.
patent: 2004/0090362 (2004-05-01), Zimmermann et al.
patent: 2005/0016163 (2005-01-01), Kitahara
patent: 2005/0174285 (2005-08-01), Monnerat
patent: 2005/0186933 (2005-08-01), Trans
patent: 198 36 778 (2000-02-01), None
patent: 100 38 278 (2002-01-01), None
patent: 101 01 285 (2002-07-01), None
patent: 101 50 104 (2002-11-01), None
patent: 101 47 462 (2003-04-01), None
patent: 101 61 507 (2003-07-01), None
patent: 0 420 329 (1990-09-01), None
patent: 1 178 330 (1994-04-01), None
patent: 0 701 701 (1994-05-01), None
patent: 0 965 050 (2001-09-01), None
patent: WO 03/077432 (2003-09-01), None
Statement of Relevance for DE 100 38 278 A1.
Virginia Polytechnic Institute and State University; M. Aatique; “Evaluation of TDOA Techniques for Position Location in CDMA Systems”; whole document; Sep. 1997; Blacksburg, Virginia.
Department of Telecommunication Michigan State University; C. Steinfield; “The Development of Location Based Services in Mobile Commerce”; whole document; 2004.
IEEE Journal on Selected Areas in Communications, vol. 20, No. 9; J. Lee et al.; “Ranging in a Dense Multipath Environment Using an UWB Radio Link”; pp. 1677-1683; Dec. 2002.
IEEE Communications Magazine; J. Caffery, Jr. et al.; “Overview of Radiolocation in CDMA Cellular Systems”; pp. 38-45; Apr. 1998.
Hach Rainer
Ianelli Zbigniew
Menzer Lars
Brainard Timothy A
Fressola Alfred A.
Nanotron Technologies GmbH
Tarcza Thomas H
Ware Fressola Van Der Sluys & Adolphson LLP
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