Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
Reexamination Certificate
2006-07-04
2006-07-04
Nguyen, Duc (Department: 2643)
Telecommunications
Transmitter and receiver at separate stations
Having measuring, testing, or monitoring of system or part
C455S067110, C455S067160, C455S070000, C375S150000, C375S317000, C375S343000
Reexamination Certificate
active
07072618
ABSTRACT:
A system and method for providing adaptive threshold selection for detecting a signal in the presence of interference or noise. The system and method thus enables a node, such as a mobile user terminal, in an ad-hoc communications network to reduce the number of false alarms it experiences in the detection of communications signals due to, for example, sudden noise bursts or reception of a high powered signal that overloads the automatic gain control (AGC) device of the receiver in the node. The system and method employ two correlation circuits which correlate the received signal with two reference sequences and output a correlated signal, a threshold generating circuit which generates a threshold value based on the estimation of the variance of the output of the first correlation circuit, and a comparison circuit which compares the correlated signal to the threshold value to determine whether the received signal includes a valid data signal, as opposed to only noise.
REFERENCES:
patent: 4494192 (1985-01-01), Lew et al.
patent: 4617656 (1986-10-01), Kobayashi et al.
patent: 4736371 (1988-04-01), Tejima et al.
patent: 4742357 (1988-05-01), Rackley
patent: 4747130 (1988-05-01), Ho
patent: 4910521 (1990-03-01), Mellon
patent: 5034961 (1991-07-01), Adams
patent: 5068916 (1991-11-01), Harrison et al.
patent: 5231634 (1993-07-01), Giles et al.
patent: 5233604 (1993-08-01), Ahmadi et al.
patent: 5241542 (1993-08-01), Natarajan et al.
patent: 5317566 (1994-05-01), Joshi
patent: 5392450 (1995-02-01), Nossen
patent: 5412654 (1995-05-01), Perkins
patent: 5424747 (1995-06-01), Chazelas et al.
patent: 5502722 (1996-03-01), Fulghum
patent: 5517491 (1996-05-01), Nanni et al.
patent: 5555425 (1996-09-01), Zeller et al.
patent: 5555540 (1996-09-01), Radke
patent: 5572528 (1996-11-01), Shuen
patent: 5615212 (1997-03-01), Ruszczyk et al.
patent: 5618045 (1997-04-01), Kagan et al.
patent: 5621732 (1997-04-01), Osawa
patent: 5623495 (1997-04-01), Eng et al.
patent: 5627976 (1997-05-01), McFarland et al.
patent: 5631897 (1997-05-01), Pacheco et al.
patent: 5642377 (1997-06-01), Chung et al.
patent: 5644576 (1997-07-01), Bauchot et al.
patent: 5652751 (1997-07-01), Sharony
patent: 5680392 (1997-10-01), Semaan
patent: 5684794 (1997-11-01), Lopez et al.
patent: 5687194 (1997-11-01), Paneth et al.
patent: 5696903 (1997-12-01), Mahany
patent: 5701294 (1997-12-01), Ward et al.
patent: 5706428 (1998-01-01), Boer et al.
patent: 5717689 (1998-02-01), Ayanoglu
patent: 5724384 (1998-03-01), Kim et al.
patent: 5745483 (1998-04-01), Nakagawa et al.
patent: 5774876 (1998-06-01), Woolley et al.
patent: 5781540 (1998-07-01), Malcolm et al.
patent: 5787080 (1998-07-01), Hulyalkar et al.
patent: 5794154 (1998-08-01), Bar-On et al.
patent: 5796732 (1998-08-01), Mazzola et al.
patent: 5796741 (1998-08-01), Saito et al.
patent: 5805593 (1998-09-01), Busche
patent: 5805842 (1998-09-01), Nagaraj et al.
patent: 5805977 (1998-09-01), Hill et al.
patent: 5809518 (1998-09-01), Lee
patent: 5822309 (1998-10-01), Ayanoglu et al.
patent: 5844905 (1998-12-01), McKay et al.
patent: 5845097 (1998-12-01), Kang et al.
patent: 5857084 (1999-01-01), Klein
patent: 5870350 (1999-02-01), Bertin et al.
patent: 5877724 (1999-03-01), Davis
patent: 5881095 (1999-03-01), Cadd
patent: 5881372 (1999-03-01), Kruys
patent: 5886992 (1999-03-01), Raatikainen et al.
patent: 5896561 (1999-04-01), Schrader et al.
patent: 5903559 (1999-05-01), Acharya et al.
patent: 5909651 (1999-06-01), Chander et al.
patent: 5936953 (1999-08-01), Simmons
patent: 5943322 (1999-08-01), Mayor et al.
patent: 5987011 (1999-11-01), Toh
patent: 5987033 (1999-11-01), Boer et al.
patent: 5991279 (1999-11-01), Haugli et al.
patent: 6028853 (2000-02-01), Haartsen
patent: 6029217 (2000-02-01), Arimilli et al.
patent: 6034542 (2000-03-01), Ridgeway
patent: 6044062 (2000-03-01), Brownrigg et al.
patent: 6047330 (2000-04-01), Stracke, Jr.
patent: 6049576 (2000-04-01), Magill
patent: 6052594 (2000-04-01), Chuang et al.
patent: 6052752 (2000-04-01), Kwon
patent: 6064626 (2000-05-01), Stevens
patent: 6067291 (2000-05-01), Kamerman et al.
patent: 6078566 (2000-06-01), Kikinis
patent: 6088383 (2000-07-01), Suzuki et al.
patent: 6104712 (2000-08-01), Robert et al.
patent: 6108738 (2000-08-01), Chambers et al.
patent: 6115580 (2000-09-01), Chuprun et al.
patent: 6122690 (2000-09-01), Nannetti et al.
patent: 6130881 (2000-10-01), Stiller et al.
patent: 6132306 (2000-10-01), Trompower
patent: 6147975 (2000-11-01), Bowman-Amuah
patent: 6163699 (2000-12-01), Naor et al.
patent: 6178337 (2001-01-01), Spartz et al.
patent: 6192053 (2001-02-01), Angelico et al.
patent: 6192230 (2001-02-01), Van Bokhorst et al.
patent: 6208870 (2001-03-01), Lorello et al.
patent: 6223240 (2001-04-01), Odenwald et al.
patent: 6229475 (2001-05-01), Woolley
patent: 6229842 (2001-05-01), Schulist et al.
patent: 6240294 (2001-05-01), Hamilton et al.
patent: 6246875 (2001-06-01), Seazholtz et al.
patent: 6249516 (2001-06-01), Brownrigg et al.
patent: 6275707 (2001-08-01), Reed et al.
patent: 6285892 (2001-09-01), Hulyalkar
patent: 6304556 (2001-10-01), Haas
patent: 6327300 (2001-12-01), Souissi et al.
patent: 6349091 (2002-02-01), Li
patent: 6349210 (2002-02-01), Li
patent: 6424673 (2002-07-01), Chen et al.
patent: 6606349 (2003-08-01), Kudhrethaya et al.
patent: 6643320 (2003-11-01), Wilcox et al.
patent: 6683924 (2004-01-01), Ottosson et al.
patent: 6847676 (2005-01-01), Ng et al.
patent: 2001/0053699 (2001-12-01), McCrady et al.
patent: 2004/0009749 (2004-01-01), Arazi et al.
patent: 2132180 (1996-03-01), None
patent: 0513841 (1992-11-01), None
patent: 0513841 (1992-11-01), None
patent: 0627827 (1994-12-01), None
patent: 0924890 (1999-06-01), None
patent: 2683326 (1993-07-01), None
patent: WO 9608884 (1996-03-01), None
patent: WO 9724005 (1997-07-01), None
patent: WO 9839936 (1998-09-01), None
patent: WO 9912302 (1999-03-01), None
patent: WO 0034932 (2000-06-01), None
patent: WO 0110154 (2001-02-01), None
patent: WO 0133770 (2001-05-01), None
patent: WO 0135567 (2001-05-01), None
patent: WO 0137481 (2001-05-01), None
patent: WO 0137482 (2001-05-01), None
patent: WO 0137483 (2001-05-01), None
patent: WO 0235253 (2002-05-01), None
Wong et al., “Soft Handoffs in CDMA Mobile Systems”, Dec. 1997, IEEE Personal Communications.
Wong et al., “A Pattern Recognition System for Handoff Algorithms”, Jul. 2000, IEEE Journal of Selected Areas in Communications, vol. 18, No. 7.
Andras G. Valko, “Cellular IP: A New Approach to Internet Host Mobility”, Jan. 1999, ACM Computer Communication Review.
Richard North, Dale Bryan and Dennis Baker, “Wireless Networked Radios: Comparison of Military, Commercial, and R&D Protocols”, Feb. 28-Mar. 3, 1999, 2ndAnnual UCSD Conference on Wireless Communications, San Diego CA.
Benjamin B. Peterson, Chris Kmiecik, Richard Hartnett, Patrick M. Thompson, Jose Mendoza and Hung Nguyen, “Spread Spectrum Indoor Geolocation”, Aug. 1998, Navigation: Journal of the Institute of Navigation, vol. 45, No. 2, summer 1998.
Josh Broch, David A. Maltz, David B. Johnson, Yih-Chun Hu and Jorjeta Jetcheva, “A Performance Comparison of Multi-Hop Wireless AD Hoc Network Routing Protocol”, Oct. 25-30, 1998, Proceedings of the 4thAnnual ACM/IEEE International Conference on Mobile Computing and Networking.
C. David Young, “USAP: A Unifying Dynamic Distributed Multichannel TDMA Slot Assignment Protocol”.
Chip Elliott and Bob Heile, “Self-Organizing, Sef-Healing Wireless Networks”, 2000 IEEE.
J.J. Garcia-Luna-Aceves and Asimakis Tzamaloukas, “Reversing the Collision-Avoidance Handshake in Wirless Networks”.
J.J. Garcia-Luna-Aceves and Marcelo Spohn, “Transmission-Efficient Routing in Wireless Networks Using Link-State Information”.
J.J. Garcia-Luna-Aceves and Ewerton L. Madruga, “The Core-Assisted Mesh Protocol”, Aug. 1999, IEEE Journal on Selected Areas in Communications, vol. 17, No. 8.
Ad Kamerman and Guido Aben, “Net Throughput with IEEE 802.11 Wireless LANS
Buczynski Joseph J.
Karpinia Randi L.
MeshNetworks, Inc.
Nguyen Duc
Pham Tuan
LandOfFree
Adaptive threshold selection system and method for detection... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adaptive threshold selection system and method for detection..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive threshold selection system and method for detection... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3558113