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1. 发明申请

US20070066259A1 AUTOMATIC GAIN CONTROL AND LOW POWER START-OF-PACKET DETECTION FOR A WIRELESS LAN RECEIVER 有权
标题翻译：无线局域网接收机的自动增益控制和低功耗起动分组检测
公开(公告)号：US20070066259A1
公开(公告)日：2007-03-22
申请号：US11557728
申请日：2006-11-08
申请人： Philip Ryan , Andrew Adams , John O'Sullivan , Uri Parker , Brian Hart , Grzegorz Zyner
发明人： Philip Ryan , Andrew Adams , John O'Sullivan , Uri Parker , Brian Hart , Grzegorz Zyner
IPC分类号： H04B17/00 , H04B7/00
CPC分类号： H03G3/3078
摘要： A digital AGC system for burst operation, particularly suited for receiving packets in a wireless local area network. One embodiment includes a log detector that provides a signal strength measure, called the received signal strength indication (RSSI) over a wide dynamic range. The AGC system includes estimating the power in a received signal by averaging the log of the signal power. The Start of Packet detection avoids using the radio receiver's main analog to digital converters to preserve power.
摘要翻译：一种用于突发操作的数字AGC系统，特别适用于在无线局域网中接收分组。一个实施例包括在宽动态范围内提供称为接收信号强度指示（RSSI）的信号强度测量的对数检测器。 AGC系统包括通过对信号功率的对数求平均来估计接收信号中的功率。分组检测的开始避免使用无线电接收机的主要模数转换器来保持功率。

2. 发明申请

US20060193277A1 EARLY DETECTION OF FALSE START-OF-PACKET TRIGGERS IN A WIRELESS NETWORK NODE 有权
标题翻译：早期检测无线网络节点中的假启动包启动器
公开(公告)号：US20060193277A1
公开(公告)日：2006-08-31
申请号：US11380152
申请日：2006-04-25
申请人： Richard Keaney , John O'Sullivan , Brian Hart , Philip Ryan , Kurt Lumbatis , Kevin Wong
发明人： Richard Keaney , John O'Sullivan , Brian Hart , Philip Ryan , Kurt Lumbatis , Kevin Wong
IPC分类号： H04B7/00
CPC分类号： H04L1/0061 , H04L1/0045 , H04L1/0072 , H04L1/0083
摘要： An apparatus, a carrier medium storing instructions to implement a method, and a method in a node of a wireless network able to receive packets that exactly or substantially conform to a wireless network standard according to which each packet includes a header having bits that have respective correct values in the case that the packet exactly conforms to the standard. The method includes receiving a start-of-packet (SOP) trigger that indicates that a packet may have been received, checking one or more bits in the header to determine whether or not they have their respective correct values, and continuing to process the packet in the case that the checking indicates that the checked bits have their respective correct values. In one implementation, the header includes a first field modulated at a known rate that has one or more reserved bit locations, and a second field modulated at a data rate indicated in the first field. In such an implementation, the checking includes processing the first field and checking one or more bits in the first field to determine whether or not they have their respective correct values, and, if the checked bits of the first field have their respective correct values, checking the second field for integrity.
摘要翻译：存储用于实现方法的指令的装置，载体介质以及能够接收完全或基本上符合无线网络标准的分组的无线网络的节点中的方法，根据该装置，每个分组包括具有相应位的报头在数据包完全符合标准的情况下的正确值。该方法包括接收指示分组可能已被接收的分组开始（SOP）触发，检查报头中的一个或多个比特以确定它们是否具有各自的正确值，并继续处理分组在检查指示所检查的位具有它们各自的正确值的情况下。在一个实现中，报头包括以已知速率调制的具有一个或多个保留位位置的第一场和以第一场指示的数据速率调制的第二场。在这种实现中，检查包括处理第一字段并检查第一字段中的一个或多个比特以确定它们是否具有它们各自的正确值，并且如果第一字段的被检查比特具有各自的正确值，检查第二个字段的完整性。

3. 发明授权

US07164651B2 Wireless computer network including a mobile appliance containing a single chip transceiver 有权
标题翻译：无线计算机网络包括包含单芯片收发器的移动设备
公开(公告)号：US07164651B2
公开(公告)日：2007-01-16
申请号：US11380165
申请日：2006-04-25
申请人： Neil Weste , Andrew Adams , Philip Ryan , John O'Sullivan , David J. Skellern , Richard Keaney
发明人： Neil Weste , Andrew Adams , Philip Ryan , John O'Sullivan , David J. Skellern , Richard Keaney
IPC分类号： H04J11/00 , H04Q7/24 , H04B1/40
CPC分类号： H04B1/28 , H04B1/405
摘要： A wireless computer data network includes several untethered mobile units that make ad-hoc data connections with an Internet-connected base station using the IEEE-802.11a standard. Each unit includes a radio transceiver fully integrated on a single semiconductor chip. The receiver portion is a double-conversion superheterodyne type, and shares the same intermediate and local oscillator frequencies with a two-stage up-conversion transmitter. Two on-chip synthesizers that each include a voltage-controlled oscillator and phase-locked loop can be operated independently for each conversion stage, or operated in offset mode. External reference frequencies can be injected for voltage-controlled oscillator and phase-locked loop testing, chip characterization, and automatic compensation modeling. Each mobile and base unit can be outfitted with transmit/receive antenna transfer switches, RF-power amplifiers, and low-noise receiver amplifiers to increase operating range.
摘要翻译：无线计算机数据网络包括使用IEEE-802.11a标准与互联网连接的基站进行自组织数据连接的若干未受控移动单元。每个单元包括完全集成在单个半导体芯片上的无线电收发器。接收器部分是双转换超外差类型，并且与两级上变频发射器共享相同的中间和本地振荡器频率。每个包括压控振荡器和锁相环的两个片上合成器可以针对每个转换级独立运行，或者以偏移模式运行。外部参考频率可以注入压控振荡器和锁相环测试，芯片表征和自动补偿建模。每个移动和基本单元可以配备发射/接收天线转换开关，RF功率放大器和低噪声接收放大器，以提高工作范围。

4. 发明申请

US20050195744A1 Selecting the data rate of a wireless network link according to a measure of error vector magnitude 有权
公开(公告)号：US20050195744A1
公开(公告)日：2005-09-08
申请号：US11099115
申请日：2005-04-05
申请人： Philip Ryan , Andrew Adams , Brian Hart , Jason Crawford , Andrew Myles
发明人： Philip Ryan , Andrew Adams , Brian Hart , Jason Crawford , Andrew Myles
IPC分类号： H04L12/28 , H04L12/56 , H04W24/00 , H04W48/20 , H04W84/12 , H04W84/18 , H04L12/26
CPC分类号： H04W48/20 , H04L1/0002 , H04L1/0015 , H04L1/0026 , H04L1/206 , H04L5/0091 , H04W24/00 , H04W84/12 , H04W84/18
摘要： An apparatus in a node of a wireless network for setting the data rate for sending data to a remote node, and a method for setting the data rate. The method includes receiving a packet from the remote node, determining a measure of signal quality for the received packet; and selecting the data rate for communicating to the remote node according to at least the determined signal quality. The measure of signal quality is a measure of the EVM of the received packet. One implementation conforms to one or more variants of the IEEE 802.11 standard that uses OFDM packets.

5. 发明授权

US07061855B2 Wireless computer network including a mobile appliance containing a single chip transceiver 有权
标题翻译：无线计算机网络包括包含单芯片收发器的移动设备
公开(公告)号：US07061855B2
公开(公告)日：2006-06-13
申请号：US11168011
申请日：2005-06-27
申请人： Neil Weste , Andrew Adams , Philip Ryan , John O'Sullivan , David J. Skellern , Richard Keaney
发明人： Neil Weste , Andrew Adams , Philip Ryan , John O'Sullivan , David J. Skellern , Richard Keaney
IPC分类号： H04J11/00 , H04Q7/24 , H04B1/40
CPC分类号： H04B1/28 , H04B1/405
摘要： A wireless computer data network includes several untethered mobile units that make ad-hoc data connections with an Internet-connected base station using the IEEE-802.11a standard. Each unit includes a radio transceiver fully integrated on a single semiconductor chip. The receiver portion is a double-conversion superheterodyne type, and shares the same intermediate and local oscillator frequencies with a two-stage up-conversion transmitter. Two on-chip synthesizers that each include a voltage-controlled oscillator and phase-locked loop can be operated independently for each conversion stage, or operated in offset mode. External reference frequencies can be injected for voltage-controlled oscillator and phase-locked loop testing, chip characterization, and automatic compensation modeling. Each mobile and base unit can be outfitted with transmit/receive antenna transfer switches, RF-power amplifiers, and low-noise receiver amplifiers to increase operating range.
摘要翻译：无线计算机数据网络包括使用IEEE-802.11a标准与互联网连接的基站进行自组织数据连接的若干未受控移动单元。每个单元包括完全集成在单个半导体芯片上的无线电收发器。接收器部分是双转换超外差类型，并且与两级上变频发射器共享相同的中间和本地振荡器频率。每个包括压控振荡器和锁相环的两个片上合成器可以针对每个转换级独立运行，或者以偏移模式运行。外部参考频率可以注入压控振荡器和锁相环测试，芯片表征和自动补偿建模。每个移动和基本单元可以配备发射/接收天线转换开关，RF功率放大器和低噪声接收放大器，以提高工作范围。

6. 发明授权

US06944121B1 Wireless computer network including a mobile appliance containing a single chip transceiver 有权
标题翻译：无线计算机网络包括包含单芯片收发器的移动设备
公开(公告)号：US06944121B1
公开(公告)日：2005-09-13
申请号：US09877402
申请日：2001-06-08
申请人： Neil Weste , Andrew Adams , Philip Ryan , John O'Sullivan , David J. Skellern , Richard Keaney
发明人： Neil Weste , Andrew Adams , Philip Ryan , John O'Sullivan , David J. Skellern , Richard Keaney
IPC分类号： H04J11/00 , H04L12/28
CPC分类号： H04B1/28 , H04B1/405
摘要： A wireless computer data network includes several untethered mobile units that make ad-hoc data connections with an Internet-connected base station using the IEEE-802.11a standard. Each unit includes a radio transceiver fully integrated on a single semiconductor chip. The receiver portion is a double-conversion superheterodyne type, and shares the same intermediate and local oscillator frequencies with a two-stage up-conversion transmitter. Two on-chip synthesizers that each include a voltage-controlled oscillator and phase-locked loop can be operated independently for each conversion stage, or operated in offset mode. External reference frequencies can be injected for voltage-controlled oscillator and phase-locked loop testing, chip characterization, and automatic compensation modeling. Each mobile and base unit can be outfitted with transmit/receive antenna transfer switches, RF-power amplifiers, and low-noise receiver amplifiers to increase operating range.
摘要翻译：无线计算机数据网络包括使用IEEE-802.11a标准与互联网连接的基站进行自组织数据连接的若干未受控移动单元。每个单元包括完全集成在单个半导体芯片上的无线电收发器。接收器部分是双转换超外差类型，并且与两级上变频发射器共享相同的中间和本地振荡器频率。每个包括压控振荡器和锁相环的两个片上合成器可以针对每个转换级独立运行，或者以偏移模式运行。外部参考频率可以注入压控振荡器和锁相环测试，芯片表征和自动补偿建模。每个移动和基本单元可以配备发射/接收天线转换开关，RF功率放大器和低噪声接收放大器，以提高工作范围。

7. 发明申请

US20060194614A1 WIRELESS COMPUTER NETWORK INLUDING A MOBILE APPLIANCE CONTAINING A SINGLE CHIP TRANSCEIVER 有权
标题翻译：无线计算机网络，包含单芯片收发器的移动电话
公开(公告)号：US20060194614A1
公开(公告)日：2006-08-31
申请号：US11380165
申请日：2006-04-25
申请人： Neil Weste , Andrew Adams , Philip Ryan , John O'Sullivan , David Skellern , Richard Keaney
发明人： Neil Weste , Andrew Adams , Philip Ryan , John O'Sullivan , David Skellern , Richard Keaney
IPC分类号： H04B1/28 , H04B1/38
CPC分类号： H04B1/28 , H04B1/405
摘要： A wireless computer data network includes several untethered mobile units that make ad-hoc data connections with an Internet-connected base station using the IEEE-802.11a standard. Each unit includes a radio transceiver fully integrated on a single semiconductor chip. The receiver portion is a double-conversion superheterodyne type, and shares the same intermediate and local oscillator frequencies with a two-stage up-conversion transmitter. Two on-chip synthesizers that each include a voltage-controlled oscillator and phase-locked loop can be operated independently for each conversion stage, or operated in offset mode. External reference frequencies can be injected for voltage-controlled oscillator and phase-locked loop testing, chip characterization, and automatic compensation modeling. Each mobile and base unit can be outfitted with transmit/receive antenna transfer switches, RF-power amplifiers, and low-noise receiver amplifiers to increase operating range.
摘要翻译：无线计算机数据网络包括使用IEEE-802.11a标准与互联网连接的基站进行自组织数据连接的若干未受控移动单元。每个单元包括完全集成在单个半导体芯片上的无线电收发器。接收器部分是双转换超外差类型，并且与两级上变频发射器共享相同的中间和本地振荡器频率。每个包括压控振荡器和锁相环的两个片上合成器可以针对每个转换级独立运行，或者以偏移模式运行。外部参考频率可以注入压控振荡器和锁相环测试，芯片表征和自动补偿建模。每个移动和基本单元可以配备发射/接收天线转换开关，RF功率放大器和低噪声接收放大器，以提高工作范围。

8. 发明申请

US20050237924A1 Wireless computer network inluding a mobile appliance containing a single chip transceiver 有权
标题翻译：包括单芯片收发器的移动设备的无线计算机网络
公开(公告)号：US20050237924A1
公开(公告)日：2005-10-27
申请号：US11168011
申请日：2005-06-27
申请人： Neil Weste , Andrew Adams , Philip Ryan , John O'Sullivan , David Skellern , Richard Keaney
发明人： Neil Weste , Andrew Adams , Philip Ryan , John O'Sullivan , David Skellern , Richard Keaney
IPC分类号： H04J11/00 , H04L12/28
CPC分类号： H04B1/28 , H04B1/405
摘要： A wireless computer data network includes several untethered mobile units that make ad-hoc data connections with an Internet-connected base station using the IEEE-802.11a standard. Each unit includes a radio transceiver fully integrated on a single semiconductor chip. The receiver portion is a double-conversion superheterodyne type, and shares the same intermediate and local oscillator frequencies with a two-stage up-conversion transmitter. Two on-chip synthesizers that each include a voltage-controlled oscillator and phase-locked loop can be operated independently for each conversion stage, or operated in offset mode. External reference frequencies can be injected for voltage-controlled oscillator and phase-locked loop testing, chip characterization, and automatic compensation modeling. Each mobile and base unit can be outfitted with transmit/receive antenna transfer switches, RF-power amplifiers, and low-noise receiver amplifiers to increase operating range.
摘要翻译：无线计算机数据网络包括使用IEEE-802.11a标准与互联网连接的基站进行自组织数据连接的若干未受控移动单元。每个单元包括完全集成在单个半导体芯片上的无线电收发器。接收器部分是双转换超外差类型，并且与两级上变频发射器共享相同的中间和本地振荡器频率。每个包括压控振荡器和锁相环的两个片上合成器可以针对每个转换级独立运行，或者以偏移模式运行。外部参考频率可以注入压控振荡器和锁相环测试，芯片表征和自动补偿建模。每个移动和基本单元可以配备发射/接收天线转换开关，RF功率放大器和低噪声接收放大器，以提高工作范围。

9. 发明申请

US20070129034A1 ADAPTIVE AGC IN A WIRELESS NETWORK RECEIVER 有权
标题翻译：无线网络接收器中的自适应AGC
公开(公告)号：US20070129034A1
公开(公告)日：2007-06-07
申请号：US11672132
申请日：2007-02-07
申请人： Andrew Adams , Philip Ryan , Brian Hart
发明人： Andrew Adams , Philip Ryan , Brian Hart
IPC分类号： H04B17/02
CPC分类号： H04W52/52 , H03G3/3068
摘要： An apparatus, a carrier medium storing instructions to implement a method, and a method for controlling the gain of a radio receiver for receiving packets of information in a wireless network. The receiver is connected to an antenna subsystem and has receive signal path including a plurality of sections including a first section coupled to the antenna subsystem and a next section. Each section has an adjustable gain and is able to provide a measure of the signal strength at its output. The method includes waiting for a start of packet indication, providing a measure of the signal strength at the output of the first section and the next section, and adjusting the gains of the first and the next sections using the provided measured signal strengths. In one embodiment, the receive signal path includes a filter, the provided measure for the first section is before the filter, and the provided measure for the second section is after the filter. The gain adjusting sets first section's gain according to the measured signal strength at the output of the first section and sets the next section's gain according to the provided measure of signal strength at the output of the next section relative to the provided measure of signal strength at the output of the first section. In one embodiment, the gain adjusting o is carried out in sequential AGC stages, one stage setting the gain of one or more sections.
摘要翻译：存储用于实现方法的指令的装置，载体介质以及用于控制无线电接收机的增益的方法，用于在无线网络中接收信息分组。接收机连接到天线子系统，并且具有包括多个部分的接收信号路径，所述多个部分包括耦合到天线子系统的第一部分和下一部分。每个部分都有一个可调节的增益，能够提供其输出信号强度的测量。该方法包括等待分组指示的开始，提供在第一部分和下一部分的输出处的信号强度的测量，以及使用所提供的测量信号强度来调整第一和下一个部分的增益。在一个实施例中，接收信号路径包括滤波器，所提供的第一部分的测量在滤波器之前，并且所提供的第二部分的测量值在滤波器之后。增益调整根据第一部分输出端的测量信号强度设置第一部分的增益，并根据提供的下一部分输出端的信号强度相对于所提供的信号强度测量值来设置下一部分的增益第一部分的输出。在一个实施例中，增益调整o在连续AGC阶段中执行，一个阶段设置一个或多个部分的增益。

10. 发明授权

US07212122B2 Methods and apparatus of meshing and hierarchy establishment for tracking devices 失效
标题翻译：跟踪装置的网格划分和层次建立的方法和装置
公开(公告)号：US07212122B2
公开(公告)日：2007-05-01
申请号：US11026172
申请日：2004-12-29
申请人： John S. Gloekler , John O'Sullivan , Geoffrey J. Smith , Philip Ryan
发明人： John S. Gloekler , John O'Sullivan , Geoffrey J. Smith , Philip Ryan
IPC分类号： G08B13/14
CPC分类号： G08B21/0261 , G01S19/42 , G08B21/0227 , G08B21/0269 , G08B21/0275
摘要： Devices, such as tracking devices, cooperate with one another to establish the routing necessary for a relay network in which a device having power-efficient and data-reliable communication with an access portal, operates to relay messages from devices which do not have an acceptable communication path to and/or from the access portal. In one aspect of the present invention, a plurality of devices synchronously determine whether an acceptable communication path can be established between themselves and one or more access portals by measuring the signal strength of an access portal beacon. In another aspect of the present invention, one or more devices, which have determined that an acceptable communication path can be established between themselves and an access portal, transmit information regarding their availability to relay messages on behalf of devices which have determined that an acceptable communication path cannot be established between themselves and an access portal.
摘要翻译：诸如跟踪设备的设备彼此协作以建立中继网络所需的路由，其中具有与接入门户的功率高效且数据可靠的通信的设备操作以中继来自不具有可接受的设备的消息到和/或从访问门户的通信路径。在本发明的一个方面，多个设备通过测量接入门户信标的信号强度同步地确定它们之间和一个或多个接入入口之间是否可以建立可接受的通信路径。在本发明的另一方面，一种或多种已经确定可以在自己和访问门户之间建立可接受的通信路径的设备代表已经确定可接受通信的设备传送关于其可用性的信息以中继消息路径无法在自己和访问门户之间建立。

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