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1. 发明授权

US06181284B2 Antenna for portable computers 失效
标题翻译：便携式电脑天线
公开(公告)号：US06181284B2
公开(公告)日：2001-01-30
申请号：US09322870
申请日：1999-05-28
申请人： Brent D. Madsen , Jeffrey L. Jones , Dirk Ostermiller , Sy Prestwitch , Ryan Kunz
发明人： Brent D. Madsen , Jeffrey L. Jones , Dirk Ostermiller , Sy Prestwitch , Ryan Kunz
IPC分类号： H01Q124
CPC分类号： G06F1/1698 , G06F1/1616 , G06F1/1656 , H01Q1/084 , H01Q1/24 , H01Q9/30
摘要： An antenna system for a portable computer allows communication between a portable computer and a wireless communication system to be established. The antenna is placed in a use position when the computer is opened to facilitate wireless communication and the antenna is placed in a storage position when the computer is closed. In the storage position, the antenna is placed in a storage compartment in the base unit of the computer. Additionally, the antenna has a first position in which the antenna is generally linearly aligned and a second position in which the antenna is positioned at approximately a 90° angle.
摘要翻译：用于便携式计算机的天线系统允许建立便携式计算机与无线通信系统之间的通信。当计算机打开时，天线被放置在使用位置以便于无线通信，并且当计算机关闭时天线被置于存储位置。在存储位置，将天线放置在计算机的基座单元中的储存室中。另外，天线具有第一位置，其中天线大致线性对准，而第二位置天线位于大约90°的角度。

2. 发明授权

US06531985B1 Integrated laptop antenna using two or more antennas 失效
标题翻译：使用两个或多个天线的集成笔记本电脑天线
公开(公告)号：US06531985B1
公开(公告)日：2003-03-11
申请号：US09638538
申请日：2000-08-14
申请人： Jeffrey L. Jones , Dirk Ostermiller , Sy Prestwich , David Andrus
发明人： Jeffrey L. Jones , Dirk Ostermiller , Sy Prestwich , David Andrus
IPC分类号： H01Q124
CPC分类号： G06F1/1656 , G06F1/1616 , H01Q1/242 , H01Q3/242 , H01Q21/205
摘要： An integrated diversity antenna solution is presented that positions multiple antennas within the digital device case. The integrated diversity antenna solution works equally well with diversity radios, such as 802.11, and non-diversity radios, such as Bluetooth. The non-diversity radios are supported via a power splitter attached to the antennas that give the necessary directional coverage. The integrated antenna array solves the main problem associated with wireless communication on laptop computers, specifically, that laptops perturb the radiation pattern because of the influence that laptop components have on standard antennas and the presence of interfering objects, most notably the laptop user, in the surrounding environment.
摘要翻译：提出了一种在数字设备情况下定位多个天线的集成分集天线解决方案。集成分集天线解决方案与诸如802.11的分集无线电以及诸如蓝牙的非分集无线电一样良好。非分集无线电通过附加到天线的功率分配器来支持，所述功率分配器提供必要的定向覆盖。集成天线阵列解决了膝上型计算机上无线通信相关的主要问题，具体来说，笔记本电脑扰乱了辐射模式，因为笔记本电脑组件对标准天线的影响以及干扰对象（最着名的笔记本电脑用户）的存在周围环境。

3. 发明申请

US20050074054A1 Matched filter for scalable spread spectrum communications systems 有权
标题翻译：可扩展扩频通信系统的匹配滤波器
公开(公告)号：US20050074054A1
公开(公告)日：2005-04-07
申请号：US10670708
申请日：2003-09-24
申请人： W. Dobson , Dirk Ostermiller , Sy Prestwich , Scott Bevan
发明人： W. Dobson , Dirk Ostermiller , Sy Prestwich , Scott Bevan
IPC分类号： H04B20060101 , H04B1/707
CPC分类号： H04J13/0022 , H04B1/7093 , H04B2201/70703 , H04B2201/70707
摘要： A spread spectrum communications system using long, scalable PN sequences to achieve variable communication rates using a low-complexity and scalable matched filter architecture to provide a large processing gain, robust recovery of multiple devices in long reach, high ambient-noise environments.
摘要翻译：一种使用长度可扩展的PN序列的扩展频谱通信系统，可使用低复杂度和可扩展的匹配滤波器架构实现可变通信速率，以提供大的处理增益，长距离多个设备的强大恢复，高环境噪声环境。

4. 发明申请

US20070291821A1 MATCHED FILTER FOR SCALABLE SPREAD SPECTRUM COMMUNICATIONS SYSTEMS 失效
标题翻译：用于可扩展频谱通信系统的匹配滤波器
公开(公告)号：US20070291821A1
公开(公告)日：2007-12-20
申请号：US11849944
申请日：2007-09-04
申请人： W. Dobson , Dirk Ostermiller , Sy Prestwich , Scott Bevan
发明人： W. Dobson , Dirk Ostermiller , Sy Prestwich , Scott Bevan
IPC分类号： H04B1/69
CPC分类号： H04J13/0022 , H04B1/7093 , H04B2201/70703 , H04B2201/70707
摘要： A spread spectrum communications system using long, scalable PN sequences to achieve variable communication rates using a low-complexity and scalable matched filter architecture to provide a large processing gain, robust recovery of multiple devices in long reach, high ambient-noise environments.
摘要翻译：一种使用长度可扩展的PN序列的扩展频谱通信系统，可使用低复杂度和可扩展的匹配滤波器架构实现可变通信速率，以提供大的处理增益，长距离多个设备的强大恢复，高环境噪声环境。

5. 发明授权

US07236510B2 Equalizer with decision feedback frequency tracking and bit decoding for spread spectrum communications 有权
标题翻译：具有用于扩频通信的判决反馈频率跟踪和比特解码的均衡器
公开(公告)号：US07236510B2
公开(公告)日：2007-06-26
申请号：US10676798
申请日：2003-10-01
申请人： W. Kurt Dobson , Dirk Ostermiller , Sy Prestwich , Scott Bevan
发明人： W. Kurt Dobson , Dirk Ostermiller , Sy Prestwich , Scott Bevan
IPC分类号： H04B1/69
CPC分类号： H04J13/0077 , H04B1/7093 , H04L25/03114
摘要： A spread spectrum communications system adapted to receive simultaneous signals from multiple transmitters, separates frequency error and equalizes and decodes continuous streams of data sets from a plurality of matched filters with frequency correction and which sorts through data and successfully decodes data bits. The spread spectrum communications system includes a transmitter and a receiver. The receiver includes an RF receiver. At least one PNB matched filter receives signals from the RF receiver. A plurality of frequency shifters receives a signal from the at least one PNB matched filter. A plurality of PNA matched filters receives data from the at least one PNB matched filter and the plurality of frequency shifters. An equalizer/decoder receives signals from the plurality of PNA matched filters.
摘要翻译：扩展频谱通信系统，适于从多个发射机接收同时信号，分离频率误差，并对来自具有频率校正的多个匹配滤波器的连续数据流流进行均衡和解码，并通过数据进行排序并成功解码数据位。扩频通信系统包括发射机和接收机。接收机包括RF接收机。至少一个PNB匹配滤波器从RF接收器接收信号。多个移频器从至少一个PNB匹配滤波器接收信号。多个PNA匹配滤波器从至少一个PNB匹配滤波器和多个频率移位器接收数据。均衡器/解码器从多个PNA匹配滤波器接收信号。

6. 发明申请

US20050100081A1 Equalizer with decision feedback frequency tracking and bit decoding for spread spectrum communications 有权
标题翻译：具有用于扩频通信的判决反馈频率跟踪和比特解码的均衡器
公开(公告)号：US20050100081A1
公开(公告)日：2005-05-12
申请号：US10676798
申请日：2003-10-01
申请人： W. Dobson , Dirk Ostermiller , Sy Prestwich , Scott Bevan
发明人： W. Dobson , Dirk Ostermiller , Sy Prestwich , Scott Bevan
IPC分类号： H04B1/707 , H04L20060101
CPC分类号： H04J13/0077 , H04B1/7093 , H04L25/03114
摘要： A spread spectrum communications system adapted to receive simultaneous signals from multiple transmitters, separates frequency error and equalizes and decodes continuous streams of data sets from a plurality of matched filters with frequency correction and which sorts through data and successfully decodes data bits.
摘要翻译：扩展频谱通信系统，适于从多个发射机接收同时信号，分离频率误差，并对来自具有频率校正的多个匹配滤波器的连续数据流流进行均衡和解码，并通过数据进行排序并成功解码数据位。

7. 发明授权

US07606288B2 Burst spread spectrum radio system and method for asset tracking and data telemetry 有权
标题翻译：突发扩频无线电系统和资产跟踪和数据遥测方法
公开(公告)号：US07606288B2
公开(公告)日：2009-10-20
申请号：US11140081
申请日：2005-05-27
申请人： Sy Prestwich , Scott Bevan , Dirk Ostermiller , K. Deric Eldredge
发明人： Sy Prestwich , Scott Bevan , Dirk Ostermiller , K. Deric Eldredge
IPC分类号： H04B1/00
CPC分类号： H04B1/7087 , G01C21/206 , G01S5/0221 , G01S5/06 , H04J13/107
摘要： A system for wireless asset tracking is disclosed. The system includes a plurality of mobile devices. Each mobile device performs two spreading operations with two distinct PN codes, a first PN code and a second PN code. Data is transmitted by each mobile device using a burst direct sequence spread spectrum radio signal. The system also includes at least three base stations. Each base station is configured to receive the burst direct sequence spread spectrum radio signals from the mobile devices which includes decoding the signals by first de-spreading with the second PN code and second de-spreading with the first PN code. Each base station is further configured to add a timestamp to each data packet received. A system for calculating the location of the mobile devices creates location information for each mobile device by calculating the time difference of arrival of received bursts for each base station.
摘要翻译：公开了一种用于无线资产跟踪的系统。该系统包括多个移动设备。每个移动设备使用两个不同的PN码，第一PN码和第二PN码来执行两个扩展操作。每个移动设备使用突发直接序列扩频无线电信号发送数据。该系统还包括至少三个基站。每个基站被配置为从移动设备接收突发直接序列扩频无线电信号，其包括通过用第二PN码进行第一解扩展和用第一PN码进行第二解扩展来对信号进行解码。每个基站还被配置为向接收到的每个数据分组添加时间戳。用于计算移动设备的位置的系统通过计算每个基站的接收脉冲串的到达时间差来创建每个移动设备的位置信息。

8. 发明申请

US20060268961A1 Burst spread spectrum radio system and method for asset tracking and data telemetry 有权
公开(公告)号：US20060268961A1
公开(公告)日：2006-11-30
申请号：US11140081
申请日：2005-05-27
申请人： Sy Prestwich , Scott Bevan , Dirk Ostermiller , K. Eldredge
发明人： Sy Prestwich , Scott Bevan , Dirk Ostermiller , K. Eldredge
IPC分类号： H04B1/00
CPC分类号： H04B1/7087 , G01C21/206 , G01S5/0221 , G01S5/06 , H04J13/107
摘要： A system for wireless asset tracking is disclosed. The system includes a plurality of mobile devices. Each mobile device performs two spreading operations with two distinct PN codes, a first PN code and a second PN code. Data is transmitted by each mobile device using a burst direct sequence spread spectrum radio signal. The system also includes at least three base stations. Each base station is configured to receive the burst direct sequence spread spectrum radio signals from the mobile devices which includes decoding the signals by first de-spreading with the second PN code and second de-spreading with the first PN code. Each base station is further configured to add a timestamp to each data packet received. A system for calculating the location of the mobile devices creates location information for each mobile device by calculating the time difference of arrival of received bursts for each base station.

9. 发明授权

US07092426B2 Matched filter for scalable spread spectrum communications systems 有权
标题翻译：可扩展扩频通信系统的匹配滤波器
公开(公告)号：US07092426B2
公开(公告)日：2006-08-15
申请号：US10670708
申请日：2003-09-24
申请人： W. Kurt Dobson , Dirk Ostermiller , Sy Prestwich , Scott Bevan
发明人： W. Kurt Dobson , Dirk Ostermiller , Sy Prestwich , Scott Bevan
IPC分类号： H04B1/69
CPC分类号： H04J13/0022 , H04B1/7093 , H04B2201/70703 , H04B2201/70707
摘要： A spread spectrum communications system uses long, scalable PN sequences to achieve variable communication rates. A low-complexity and scalable matched filter architecture is used to provide a large processing gain and robust recovery of multiple devices in long reach, high ambient-noise environments. The spread spectrum communications system includes a transmitter and a receiver. The receiver includes an RF receiver and a first matched filter receiving data from the RF receiver. A plurality of phase/frequency shifters receives a signal from the first matched filter. A plurality of second matched filters receive data from the plurality of phase/frequency shifters. An equalizer/decoder receives signals from the plurality of phase/frequency shifters.
摘要翻译：扩频通信系统使用长的可扩展的PN序列来实现可变的通信速率。低复杂度和可扩展的匹配滤波器架构用于在长距离，高环境噪声环境中提供大的处理增益和强大的多个器件的恢复。扩频通信系统包括发射机和接收机。接收机包括RF接收机和从RF接收机接收数据的第一匹配滤波器。多个相位/频率移位器从第一匹配滤波器接收信号。多个第二匹配滤波器从多个相位/频率移位器接收数据。均衡器/解码器从多个相位/频率移位器接收信号。

10. 发明授权

US06282177B1 Method and apparatus for dynamically controlling the bias current in a receiver in response to the transmitter power 失效
标题翻译：响应于发射机功率来动态地控制接收机中的偏置电流的方法和装置
公开(公告)号：US06282177B1
公开(公告)日：2001-08-28
申请号：US09034653
申请日：1998-03-04
申请人： Dirk Ostermiller , Sy Prestwich
发明人： Dirk Ostermiller , Sy Prestwich
IPC分类号： H04B5005
CPC分类号： H04W52/52 , H04B1/40
摘要： A method and apparatus for minimizing the power consumed by a low-noise amplifier in a receiver portion of a full duplex transceiver when the transmit signal power of the transceiver as presented to the low-noise amplifier exceeds the receive signal power and would further cause the low-noise amplifier to enter into a compression state thereby introducing distortion onto the receive signal. A transmit power control indicator designates a modified transmit power level for use by the transceiver. The transmit portion of the transceiver alters the transmit power level accordingly while the receiver portion of the transceiver monitors the change in the transmit portion and generates a bias control signal altering the bias level of the low noise amplifier to a level compatible with the modified transmit power level. Such a tracking of the bias current of the low noise amplifier both facilitates the use of lower-isolation duplexers and also reduces power consumption for portable transceivers.
摘要翻译：一种当所呈现给低噪声放大器的收发信机的发射信号功率超过接收信号功率时，使全双工收发器的接收机部分中的低噪声放大器消耗的功率最小化的方法和装置，并且将进一步导致低噪声放大器进入压缩状态，从而将失真引入到接收信号上。发射功率控制指示符指示被收发机使用的修改的发射功率电平。收发器的发射部分相应地改变发射功率电平，同时收发器的接收机部分监测发射部分的变化，并产生将低噪声放大器的偏置电平改变到与修改的发射功率兼容的电平的偏置控制信号水平。低噪声放大器的偏置电流的这种跟踪有助于使用较低隔离双工器并且还降低便携式收发器的功耗。

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