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公开(公告)号：EP1516434A2
公开(公告)日：2005-03-23
申请号：EP03761050.8
申请日：2003-06-10
发明人： SANTHOFF, John
CPC分类号： H04B1/7163 , H04B2203/5416 , H04B2203/5445 , H04H20/69
摘要： A method to increase the available bandwidth across a wired network is provided. The method includes transmitting an ultra-wideband signal across the wired network. One embodiment of the present invention may transmit a multiplicity of ultra-wideband signals through a community access television network. The present invention may transmit an ultra-wideband signal across an optical network, a cable television network, a community antenna television network, a community access television network, a hybrid fiber-coax network, an Internet service provider network, and a PSTN network.
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公开(公告)号：EP1360570A1
公开(公告)日：2003-11-12
申请号：EP02704385.0
申请日：2002-02-08
发明人： GEHRING, Stephan, W.
IPC分类号： G06F1/24
CPC分类号： H04L63/0464
摘要： An encryption (19) and decryption (18) system and method for message forwarding in a multinode network which provides fast message forwarding while minimizing CPU (12) time and power requirements by unconditional decryption of all incoming messages and unconditional encryption (19) or re-encryption of all outgoing messages, which pass through a forwarding node or nodes (24 a-c).
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公开(公告)号：EP1329035A1
公开(公告)日：2003-07-23
申请号：EP01975657.6
申请日：2001-09-27
发明人： SANTHOFF, John, H.
CPC分类号： H04W52/286 , H04W52/20 , H04W52/283 , H04W52/50
摘要： The ultra-wideband communication system (10) includes a transceiver (12, 14) configured to receive an ultra-wideband communication signal (33, 35, 38, 40), which has embedded power level data (52, 54, 56, 58). A measurement circuit (27, 29) in the transceiver measures the strength of the received signal. An attenuation factor (15) is computed that compares the measured signal strength to the data embedded in the signal. A feedback circuit uses the attenuation factor to select a power level for a next transmission. In a preferred configuration, the transceiver also has a positioning circuit (25, 31) that is used to accurately determine the distance from the transceiver to the source of the communication signal, and the feedback circuit uses the distance to tune the power level for the next transmission. In another preferred configuration, a bit error rate is used to set power level for the next transmission.
摘要翻译： 所述超宽带通信系统（10）包括配置成接收超宽带通信信号（33,35,38,40）的收发器（12,14），所述超宽带通信信号具有嵌入的功率电平数据（52,54,56,58 ）。 收发器中的测量电路（27,29）测量接收到的信号的强度。 计算衰减因子（15），将测量的信号强度与嵌入信号中的数据进行比较。 反馈电路使用衰减因子为下一次传输选择功率电平。 在优选配置中，收发器还具有用于精确确定从收发器到通信信号源的距离的定位电路（25,31），并且反馈电路使用该距离来调谐用于 下一次传输。 在另一个优选配置中，使用误码率来设置下一次传输的功率电平。
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公开(公告)号：EP1226652A1
公开(公告)日：2002-07-31
申请号：EP00968486.1
申请日：2000-09-28
IPC分类号： H03K9/04 , H04L27/233 , H04L7/00
CPC分类号： H04B1/7183 , H04B1/71632 , H04B2001/6908 , H04L7/033 , H04L7/042 , H04L27/066 , H04L2027/003 , H04L2027/0036 , H04L2027/0067 , H04L2027/0095
摘要： The present invention is a receiver (18) having a radio frequency front end (24), a pulse detector (26) operatively coupled to the Rf front end (24), and a data recovery unit (104) operatively coupled to the pulse detector (26). The data recovery unit (104) is configured to receive spread spectrum Rf signals having different pulse repetition frequencies and using different modulation techniques. The receiver (18) may also operate in a network environment in which a network of transceiver node device (12) comprise a first slave transceiver having a receiver configured to receive spread spectrum signals, and a second slave transceiver configured to communicate with the first slave transceiver. Additionally, a master transceiver is in communication with the first slave transceiver and the second slave transceiver. The master transceiver is configured to manage data transmission and synchronization between the first slave transceiver and the second slave transceiver.
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公开(公告)号：EP1350346B1
公开(公告)日：2007-05-30
申请号：EP01273057.8
申请日：2001-12-13
CPC分类号： H04B1/7176 , G01S13/878 , H04B1/1027 , H04B1/7174 , H04B17/309 , H04L1/08 , H04L1/1816 , H04L1/1829 , H04L1/203 , H04W72/08
摘要： A system, method and article of manufacture are provided for managing the transmission suitability of a channel in a multi access scheme. In general, information relating to noise associated with a channel is obtained.(202) A potential effect of the noise on a transmission quality of the channel is then estimated based on the obtained information.(204) Next, a rating is assigned to the channel based on the estimated potential effect.(206) Based on the assigned rating, the channel is classified into a grade of service class.(208) Information relating to the channel and its associated rating and grade of service class is then stored in a database.(210)
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6.发明公开
公开(公告)号：EP1368920A1
公开(公告)日：2003-12-10
申请号：EP02728428.0
申请日：2002-03-07
发明人： TAYLOR, James, L.
IPC分类号： H04J3/06
CPC分类号： H04N21/4305 , H04J3/0632 , H04J3/0641 , H04L7/041 , H04L2007/047 , H04N21/43615 , H04W92/18
摘要： Synchronization is maintained among a plurality of network devices (102,...) having local clocks. A first packet including global time reference (606) derived from local clock is broadcast from a first network device to other devices. The clocks of the network devices are adjusted. The difference between a free running clock and a first network global time reference is determined (610). A first network offset is calculated (612). Similarly, a second network offset is calculated to account for the difference between the free running clock and the second network global time reference.
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公开(公告)号：EP1310047A2
公开(公告)日：2003-05-14
申请号：EP01948601.8
申请日：2001-06-20
CPC分类号： H04B1/71637 , H04B1/7183
摘要： The present invention is a receiver having a radio frequency (RF) front end, a pulse detector operatively coupled to the RF front end, and a data recovery unit operatively coupled to the pulse detector. The data recovery unit is configured to receive spread spectrum RF signals having different pulse repetition frequencies and using different modulation techniques. The receiver may operate in conjunction with a transmitter as a transceiver. The receiver may also operate in a network environment in which a network of transceiver node devices comprise a first slave transceiver having a receiver configured to receive spread spectrum signals, and a second slave transceiver configured to communicate with the first slave transceiver. Additionally, a master transceiver is in communication with the first slave transceiver and the second slave transceiver. The master transceiver is configured to manage data transmissions and synchronization between the first slave transceiver and the second slave transceiver.
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公开(公告)号：EP1308000A2
公开(公告)日：2003-05-07
申请号：EP01944626.9
申请日：2001-06-21
CPC分类号： H04B7/2659 , H04W4/18 , H04W24/00 , H04W28/22
摘要： The present invention describes a network communication system which includes a first slave transceiver configured to communicate a plurality of TDMA data packets at different data rates to a second slave transceiver. The second slave transceiver is also configured to communicate a plurality of TDMA data packets at different data rates to the first slave transceiver. A master transceiver manages data communications between the first slave transceiver and the second slave transceiver. Each transceiver includes a data modulation unit, a transmitter, an antenna, and a receiver. The data modulation unit is configured to generate a plurality of signals having variable pulse repetition frequencies and different modulation techniques. The transmitter is coupled to the data modulation unit and the transmitter is configured to generate a pulse stream according to the data modulation unit. The transmitting antenna is coupled to the transmitter and the transmitting antenna is configured to transmit a plurality of ultra wide band baseband signals. The receiver is configured to detect and demodulate said ultra wide band base band signals operating at variable pulse repetition frequencies and having different modulation methods.
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公开(公告)号：EP1516434B1
公开(公告)日：2011-12-21
申请号：EP03761050.8
申请日：2003-06-10
发明人： SANTHOFF, John
CPC分类号： H04B1/7163 , H04B2203/5416 , H04B2203/5445 , H04H20/69
摘要： A method to increase the available bandwidth across a wired network is provided. The method includes transmitting an ultra-wideband signal across the wired network. One embodiment of the present invention may transmit a multiplicity of ultra-wideband signals through a community access television network. The present invention may transmit an ultra-wideband signal across an optical network, a cable television network, a community antenna television network, a community access television network, a hybrid fiber-coax network, an Internet service provider network, and a PSTN network.
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公开(公告)号：EP1350400A1
公开(公告)日：2003-10-08
申请号：EP01991165.0
申请日：2001-12-13
IPC分类号： H04Q7/20
CPC分类号： H04W36/18 , G01S13/878 , H04B1/1027 , H04B1/7174 , H04B1/7176 , H04B17/309 , H04L1/08 , H04L1/1816 , H04L1/1829 , H04L1/203 , H04W36/30
摘要： Briefly, the present invention provides a dynamic channel re-assignment capability between mobile units (70), base stations (10) and sectors (1, 2, 3, 4, 5) within base station coverage areas (20). The wireless devices used in the present invention may include impulse radio communication devices such as, for example ultra-wideband radio (also known as digital pulse wireless) communication devices. Ultra-wideband bandwidth and channel allocation can be effectively managed, even though link quality generally deteriorates near the outer boundary of the base station. By maintaining dual communications with an adjoining base station, the present invention reduces the bit error rate and maintains signal strength (e.g., RF signal strength). This procedure is termed a 'soft-handoff'.
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