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公开(公告)号：AT437503T
公开(公告)日：2009-08-15
申请号：AT04814431
申请日：2004-12-15
Applicant: MOTOROLA INC
Inventor： KYPEROUNTAS SPYROS , ANDRIC OLEG , CORREAL NEIYER S , HUANG JIAN , NIU FENG , SHI QICAI
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公开(公告)号：DE112004000704T5
公开(公告)日：2006-04-20
申请号：DE112004000704
申请日：2004-04-20
Applicant: MOTOROLA INC
Inventor： KYPEROUNTAS SPYROS , NIU FENG , SHI QICAI
Abstract: A method for locating nodes in a multi-hop sensor network forms a rigid body (RB 1 , RB 2 , RB 3 ) and, from the nodes, utilizes the rigid body to decide if a node is locatable. The method obtains a reduced order model (ROM) of the network by categorizing all of the nodes by location status, grouping them based upon the categorizations, and defining and identifying a rigid body from a group. The method further simplifies determinability of node location by forming the rigid body from the nodes based upon the categorized location status. To locate the nodes, the nodes are separated from one another into subsets dependent upon characteristics ( 100 ). Then, groups are formed from one subset ( 200 ) and the rigid body is formed from a group ( 300 ). The ROM is formed from the rigid body ( 400 ) and a location capability of the rigid body is evaluated based upon the ROM ( 500 ).
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公开(公告)号：DE112004000662T5
公开(公告)日：2006-02-23
申请号：DE112004000662
申请日：2004-04-14
Applicant: MOTOROLA INC
Inventor： PERKINS MATTHEW R , KYPEROUNTAS SPYROS
Abstract: A communications network ( 100 ) has coordinator devices ( 10 ) each transmitting a beacon message in a cluster area ( 30 ). Neighboring coordinator devices ( 1, 2 ) define overlap areas ( 60 ) in which each beacon message of the neighboring coordinator devices is present. Neighboring coordinator devices ( 1, 2 ) may also define non-overlap areas ( 204 ) in which each beacon message is present. A method for distributing communication signals includes providing nodes ( 50 ), ( 51,52 ) within a transmission region ( 30 ) of the coordinator devices ( 1, 2 ). The node ( 50 ) or nodes ( 51, 52 ) detect at least one beacon message of the neighboring coordinator devices ( 1, 2 ), determine the existence of a condition ( 302 ), and warn neighboring coordinator devices of the condition. The condition ( 302 ) is corrected by making an adjustment to the communication signal (such as beacon timing) by a correction amount ( 304 ).
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公开(公告)号：DE602004022196D1
公开(公告)日：2009-09-03
申请号：DE602004022196
申请日：2004-12-15
Applicant: MOTOROLA INC
Inventor： KYPEROUNTAS SPYROS , ANDRIC OLEG , CORREAL NEIYER S , HUANG JIAN , NIU FENG , SHI QICAI
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公开(公告)号：AU2003256309A1
公开(公告)日：2004-01-19
申请号：AU2003256309
申请日：2003-06-25
Applicant: MOTOROLA INC
Inventor： AMICO THOMAS VICTOR D , GORDAY PAUL EDWARD , KYPEROUNTAS SPYROS
Abstract: A Voice Over Internet Protocol (VOIP) receiver ( 630 ), operating in conjunction with a transmitter ( 606 ) receives a sequence of voice packets representing a speech utterance transmitted over a VOIP wireless interface ( 112 ). A receive packet buffer ( 120 ) buffers the received sequence of voice packets after receipt and before playback of reconstructed speech. A processor ( 650 ), operating under program control, determines a transmission buffer ( 108 ) delay of a first packet in the sequence of packets representing the speech utterance. The control processor ( 650 ) further sets a prescribed amount of delay in the receive packet buffer ( 120 ) based upon the transmission buffer ( 108 ) delay so that the transmission buffer delay+receive buffer delay=a predetermined total delay. The status of the receiver buffer ( 120 ) is monitored and tracked by or fed back to the transmitter side to minimize receive buffer ( 120 ) under-runs by use of CDMA soft capacity ( 200 ), link dependent prioritization ( 300 ), real-time packet prioritization ( 400 ) and/or variation of vocoder ( 624 ) rates ( 500 ).
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Patent Agency Ranking
公开(公告)号：DE112004000662B4
公开(公告)日：2011-03-03
申请号：DE112004000662
申请日：2004-04-14
Applicant: MOTOROLA INC
Inventor： PERKINS MATTHEW R , KYPEROUNTAS SPYROS
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公开(公告)号：DE112006000373T5
公开(公告)日：2008-02-14
申请号：DE112006000373
申请日：2006-02-17
Applicant: MOTOROLA INC
Inventor： TAUBENHEIM DAVID B , KYPEROUNTAS SPYROS
Abstract: To enable wireless applications which require the use of location information, a method and apparatus for transmitting location data within an ad-hoc communication system is provided herein. During operation, a portion of a packet payload is used to transmit location coordinate information along with an identifier of location estimation technique utilized for a node, as well as other parameters that may be needed for location estimation. Nodes in the communication system calculate their location coordinates using the said portion of packets received from other nodes in the communication system.
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公开(公告)号：EP1676450A4
公开(公告)日：2009-05-20
申请号：EP04784578
申请日：2004-09-17
Applicant: MOTOROLA INC
Inventor： KYPEROUNTAS SPYROS , ALLEN VERNON A , ANDRIC OLEG
CPC classification number: H04W72/044 , H04W84/18
Abstract: To address the need for channel assignment in an ad-hoc network, a method and apparatus for channel assignment is provided herein. In particular, a communication system (100) utilizes a method for deterministic node (101-107) channel assignment that enables channel reuse and thus scalability of an ad-hoc network. The channel assignment is dependent upon a current level for the particular nodes, as well as the maximum available channels, the maximum allowable levels in the network, and the maximum number of children nodes that a parent can have.
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9.发明申请METHOD AND APPARATUS FOR DETERMINING THE LOCATION OF A NODE IN A WIRELESS SYSTEM 审中-公开用于确定无线系统中节点位置的方法和装置
公开(公告)号：WO2006115725A3
公开(公告)日：2007-10-11
申请号：PCT/US2006012909
申请日：2006-04-07
Applicant: MOTOROLA INC , KYPEROUNTAS SPYROS , CORREAL NEIYER S , NIU FENG , SHI QICAI
Inventor： KYPEROUNTAS SPYROS , CORREAL NEIYER S , NIU FENG , SHI QICAI
IPC: G08C15/00
CPC classification number: G01S5/0289 , H04B17/318 , H04B17/391 , H04W64/00
Abstract: A location technique is utilized where channel-model parameters are originally estimated prior to location taking place. Location then takes place using a first set of known-located nodes, and the channel-model parameters are updated based on the distances resulting from the location estimate. Once the channel-model parameters have been updated, location again takes place using a second set of known-located nodes, node distances are calculated based on the produced locations and the channel-model parameters are again updated. This process continues until no significant change is observed between the previous and the newly estimated location, or until a maximum number of iterations is reached.
Abstract translation: 在位置发生之前，最初估计信道模型参数的位置技术被使用。 然后使用第一组已知定位的节点进行位置，并且基于由位置估计导致的距离来更新频道模型参数。 一旦信道模型参数被更新，再次使用第二组已知定位的节点进行位置，则基于所产生的位置来计算节点距离，并再次更新信道模型参数。 该过程继续进行，直到在先前和新估计的位置之间没有观察到显着变化，或直到达到最大次数。
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10.发明申请METHOD AND APPARATUS FOR DETERMINING THE LOCATION OF A NODE IN A WIRELESS NETWORK 审中-公开用于确定无线网络中节点位置的方法和装置
公开(公告)号：WO2007075647A2
公开(公告)日：2007-07-05
申请号：PCT/US2006048375
申请日：2006-12-19
Applicant: MOTOROLA INC , TAUBENHEIM DAVID B , KYPEROUNTAS SPYROS
Inventor： TAUBENHEIM DAVID B , KYPEROUNTAS SPYROS
Abstract: A method and apparatus for determining the location of a node within a communication system is provided herein. During operation, located nodes (105) having known locations are utilized to locate "blind" nodes (200) whose location is to be determined. More particularly, a blind node (200) wishing to determine its location will measure a plurality of signal strengths between itself and a plurality of located nodes (105). Each located node's signal strength will then be adjusted based on at least one antenna gain pattern. A radio-location algorithm will then be executed on the adjusted signal-strength measurements to determine the nodes location.
Abstract translation: 本文提供了一种用于确定通信系统内的节点的位置的方法和装置。 在操作期间，利用具有已知位置的定位节点（105）来定位其位置要确定的“盲”节点（200）。 更具体地，希望确定其位置的盲节点（200）将测量其本身与多个定位节点（105）之间的多个信号强度。 然后将基于至少一个天线增益模式来调整每个定位的节点的信号强度。 然后将对经调整的信号强度测量执行无线电定位算法以确定节点位置。
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