公开(公告)号：US08384476B2

公开(公告)日：2013-02-26

申请号：US12189681

申请日：2008-08-11

Applicant: Paul J. Draxler ,  Bruce A. Judson ,  Aracely W. Forrester

Inventor： Paul J. Draxler ,  Bruce A. Judson ,  Aracely W. Forrester

IPC: H03F1/26

CPC classification number: H03F1/3247 ,  H03F2200/435

Abstract: Exemplary embodiments of the invention includes an amplifier and a processor that adapts a baseline or previous model of the input-output signal characteristic of the amplifier using metrics of the system, including peak power, peak voltage, average power, root mean square (RMS) voltage, samples of the output signal of the amplifier, or environmental metrics such as temperature, power supply voltage, signal frequency, etc. In particular, the system comprises an amplifier; a device to measure a metric of the system; a processor to generate a present model of the input-output signal characteristic of the amplifier based on the system metric; and a predistortion device to predistort the input signal for the amplifier based on the present amplifier model.

Abstract translation: 本发明的示例性实施例包括放大器和处理器，其使用系统的度量来适配放大器的输入 - 输出信号特性的基线或先前模型，包括峰值功率，峰值电压，平均功率，均方根（RMS） 电压，放大器的输出信号的采样或诸如温度，电源电压，信号频率等的环境度量。特别地，该系统包括放大器; 用于测量系统度量的设备; 处理器，用于基于所述系统度量来产生所述放大器的输入 - 输出信号特性的当前模型; 以及预失真装置，用于基于本放大器模型预失真放大器的输入信号。

公开(公告)号：US20100323654A1

公开(公告)日：2010-12-23

申请号：US12490268

申请日：2009-06-23

Applicant: Bruce A. Judson ,  Cong T. Nguyen

Inventor： Bruce A. Judson ,  Cong T. Nguyen

IPC: H04B1/10 ,  H03H7/06 ,  H04B1/16

CPC classification number: H04B1/1036 ,  H03F3/195 ,  H03F2200/241 ,  H03H7/03 ,  H03H7/1775 ,  H03H11/52 ,  H04B1/109

Abstract: A preselect circuit maintains the dynamic range of a received RF input signal during bandpass filtering of the received RF input signal. The preselect circuit includes a Q-deficient passive bandpass filter for coupling to an antenna to receive a received RF input signal. The preselect circuit further includes a Q-enhancement circuit coupled to the Q-deficient passive bandpass filter, wherein the Q-enhancement circuit increases a Q-value of the Q-deficient passive bandpass filter by compensating for resistive inductive losses in the bandpass filter.

Abstract translation: 在接收的RF输入信号的带通滤波期间，预选电路保持接收的RF输入信号的动态范围。 预选电路包括用于耦合到天线以接收接收的RF输入信号的Q缺陷无源带通滤波器。 预选电路还包括耦合到Q缺陷无源带通滤波器的Q增强电路，其中Q增强电路通过补偿带通滤波器中的电阻感应损耗来增加Q缺陷无源带通滤波器的Q值。

公开(公告)号：US07181244B2

公开(公告)日：2007-02-20

申请号：US09998860

申请日：2001-11-15

Applicant: Bruce A. Judson ,  Christopher C. Riddle

Inventor： Bruce A. Judson ,  Christopher C. Riddle

IPC: H04M1/00

CPC classification number: H04W16/28 ,  H01Q1/246 ,  H01Q3/2605 ,  H01Q21/28 ,  H01Q21/30

Abstract: A novel mobile unit which communicates with a new and advantageous base station. The mobile unit includes a system for generation of position information and a transceiver for transmitting the position information. In the preferred embodiment, the transceiver is a CDMA system and the system for generating position information includes an arrangement for receiving a GPS signal. In the preferred embodiment, a GPS assisted arrangement is employed which is adapted to receive a signal from an airborne platform as well as from a satellite based platform. The inventive base station is adapted to receive position information from a remote unit and provide a received position signal in response thereto. The novel base station is further equipped with a mechanism for directing a beam in response to the received position signal. In the illustrative embodiment, the mechanism for directing the beam is a smart antenna system including an antenna array and a beamforming network for driving the array to output the directed beam.

Abstract translation: 与新的和有利的基站进行通信的新型移动单元。 移动单元包括用于产生位置信息的系统和用于发送位置信息的收发器。 在优选实施例中，收发器是CDMA系统，并且用于产生位置信息的系统包括用于接收GPS信号的装置。 在优选实施例中，采用GPS辅助装置，其适于从机载平台以及基于卫星的平台接收信号。 本发明的基站适于从远程单元接收位置信息并响应于此提供接收到的位置信号。 新型基站还配备有用于响应于接收到的位置信号来引导波束的机构。 在说明性实施例中，用于引导光束的机构是包括用于驱动阵列以输出定向光束的天线阵列和波束成形网络的智能天线系统。

公开(公告)号：US08606211B2

公开(公告)日：2013-12-10

申请号：US12490268

申请日：2009-06-23

Applicant: Bruce A. Judson ,  Cong T. Nguyen

Inventor： Bruce A. Judson ,  Cong T. Nguyen

IPC: H04B1/16

CPC classification number: H04B1/1036 ,  H03F3/195 ,  H03F2200/241 ,  H03H7/03 ,  H03H7/1775 ,  H03H11/52 ,  H04B1/109

Abstract: A preselect circuit maintains the dynamic range of a received RF input signal during bandpass filtering of the received RF input signal. The preselect circuit includes a Q-deficient passive bandpass filter for coupling to an antenna to receive a received RF input signal. The preselect circuit further includes a Q-enhancement circuit coupled to the Q-deficient passive bandpass filter, wherein the Q-enhancement circuit increases a Q-value of the Q-deficient passive bandpass filter by compensating for resistive inductive losses in the bandpass filter.

Abstract translation: 在接收的RF输入信号的带通滤波期间，预选电路保持接收的RF输入信号的动态范围。 预选电路包括用于耦合到天线以接收接收的RF输入信号的Q缺陷无源带通滤波器。 预选电路还包括耦合到Q缺陷无源带通滤波器的Q增强电路，其中Q增强电路通过补偿带通滤波器中的电阻感应损耗来增加Q缺陷无源带通滤波器的Q值。

公开(公告)号：US08538367B2

公开(公告)日：2013-09-17

申请号：US12493568

申请日：2009-06-29

Applicant: Bruce A. Judson ,  Cong T. Nguyen

Inventor： Bruce A. Judson ,  Cong T. Nguyen

IPC: H04B1/16

CPC classification number: H03H7/03 ,  H03H7/1775 ,  H03H11/06

Abstract: A filter circuit enhances a deficient Q-value in a filter stage and buffers the filter stage from subsequent filter stages using a common active device. A filter circuit includes a first buffered filtering stage including a first Q-deficient filter stage to receive an input signal and a first Q-enhancement buffer stage. The first Q-enhancement buffer stage is coupled to the first Q-deficient filter stage, wherein the first Q-enhancement buffer stage includes a single active device to increase a Q-value of the first Q-deficient filter stage and isolate the first Q-deficient filter stage from any subsequent filter stage. A filtering method includes filtering an input signal in a first Q-deficient filter stage and enhancing a deficient Q-value of the first Q-deficient filter stage with an active device. The method further includes buffering the first Q-deficient filter stage from any subsequent filter stage with the active device.

Abstract translation: 滤波器电路增强滤波器级中的不足的Q值，并且使用公共有源器件来缓冲来自后续滤波器级的滤波器级。 滤波器电路包括第一缓冲滤波级，其包括用于接收输入信号的第一Q缺陷滤波器级和第一Q增强缓冲级。 第一Q增强缓冲级耦合到第一Q缺陷滤波级，其中第一Q增强缓冲级包括单个有源器件，以增加第一Q缺陷滤波级的Q值并隔离第一Q 任何后续过滤阶段的缺陷过滤阶段。 滤波方法包括在第一Q缺陷滤波器级中对输入信号进行滤波，并利用有源器件增强第一Q缺陷滤波器级的缺陷Q值。 该方法还包括用有源器件从任何后续滤波器级缓冲第一Q缺陷滤波器级。

公开(公告)号：US06442398B1

公开(公告)日：2002-08-27

申请号：US09409943

申请日：1999-09-30

Applicant: Roberto Padovani ,  Bruce A. Judson

Inventor： Roberto Padovani ,  Bruce A. Judson

IPC: H04B700

CPC classification number: H04W52/343 ,  H04W52/08 ,  H04W52/221 ,  H04W52/283 ,  H04W52/36

Abstract: In one embodiment of method and appartus for determining loading in a communication system, the communication system accumulates a power control commands series and corresponding transmit gain adjustments series between a base station and a designated remote station, under regular operating conditions. After transmissions form the remaining remote stations are interrupted, the communication system repeats the accumulation, and determines the loading according to the accumulated series. Alternatively, the communication system measures power of a test signal injected into base station receiver, under regular operating conditions. After transmissions form the remote stations are interrupted, the communication system repeats the measurement, and determines the loading according to the two measurements. Alternatively, the communication system measures gain of an AGC at the base station's receiver, under regular operating conditions. After transmissions form the remote stations are interrupted, the communication system repeats the measurement, and determines the loading according to the two measurements.

Abstract translation: 在用于确定通信系统中的负载的方法和应用的一个实施例中，通信系统在正常操作条件下，在基站和指定的远程站之间累积功率控制命令序列和对应的发射增益调整序列。 在传输之后，剩余的远程站被中断，通信系统重复累积，并根据累积的序列确定负载。 或者，通信系统在常规操作条件下测量注入基站接收机的测试信号的功率。 在传输之后，远程站被中断，通信系统重复测量，并根据两个测量确定负载。 或者，通信系统在常规操作条件下测量基站的接收机处的AGC的增益。 在传输之后，远程站被中断，通信系统重复测量，并根据两个测量确定负载。

公开(公告)号：US20100033246A1

公开(公告)日：2010-02-11

申请号：US12189681

申请日：2008-08-11

Applicant: Paul J. Draxler ,  Bruce A. Judson ,  Aracely W. Forrester

Inventor： Paul J. Draxler ,  Bruce A. Judson ,  Aracely W. Forrester

IPC: H03F1/26

CPC classification number: H03F1/3247 ,  H03F2200/435

Abstract: Exemplary embodiments of the invention includes an amplifier and a processor that adapts a baseline or previous model of the input-output signal characteristic of the amplifier using metrics of the system, including peak power, peak voltage, average power, root mean square (RMS) voltage, samples of the output signal of the amplifier, or environmental metrics such as temperature, power supply voltage, signal frequency, etc. In particular, the system comprises an amplifier; a device to measure a metric of the system; a processor to generate a present model of the input-output signal characteristic of the amplifier based on the system metric; and a predistortion device to predistort the input signal for the amplifier based on the present amplifier model.

Abstract translation: 本发明的示例性实施例包括放大器和处理器，其使用系统的度量来适配放大器的输入 - 输出信号特性的基线或先前模型，包括峰值功率，峰值电压，平均功率，均方根（RMS） 电压，放大器的输出信号的采样或诸如温度，电源电压，信号频率等的环境度量。特别地，该系统包括放大器; 用于测量系统度量的设备; 处理器，用于基于所述系统度量来产生所述放大器的输入 - 输出信号特性的当前模型; 以及预失真装置，用于基于本放大器模型预失真放大器的输入信号。

公开(公告)号：US07054662B2

公开(公告)日：2006-05-30

申请号：US09771137

申请日：2001-01-24

Applicant: Bruce A. Judson

Inventor： Bruce A. Judson

IPC: H04M1/00

CPC classification number: H04B7/0623 ,  H04B7/0617 ,  H04W52/42

Abstract: According to one embodiment, an antenna beam pattern is used to send a communication signal to a user. For example, the antenna beam pattern can be formed using adaptive antenna array technology on the forward link of a wireless communication system. A control signal from the user is used to determine a statistic. For example, the control signal can be a power control bit sent by the user on the return link. The statistic can be an average of the power control bit values over a specified time interval. The statistic is used to narrow the antenna beam pattern and direct it toward the user. For example, a dithering algorithm can be used to optimize the antenna beam pattern. After a call is completed, an optimized antenna beam pattern specific to each user can be stored for the next call to make the optimizing process faster and more efficient.

公开(公告)号：US06792289B1

公开(公告)日：2004-09-14

申请号：US09436083

申请日：1999-11-08

Applicant: Bruce A. Judson

Inventor： Bruce A. Judson

IPC: H04Q720

CPC classification number: H04W88/08 ,  H01Q1/246 ,  H01Q21/30 ,  H01Q23/00

Abstract: A method and apparatus for sharing antennas between bases stations that is non-band limiting. A transmit signal is received at a first port coupled to a base station. The transmit signal travels from the first port through a plurality of circulators prior to being transmitted by an antenna. A received signal is received at a second port that is communicatively coupled to the antenna. The received signal conceptually travels through the apparatus in a reverse direction to the transmit signal, through at least one of the circulator units, and is admitted to the base station using at least the same port that received the transmit signal. The signal may be split, and also received by a different base station.

Abstract translation: 用于在非频带限制的基站之间共享天线的方法和装置。 在耦合到基站的第一端口处接收发送信号。 发射信号在被天线发射之前从第一端口行进通过多个循环器。 接收的信号在通信地耦合到天线的第二端口处被接收。 接收到的信号在概念上通过至少一个循环器单元在与发送信号相反的方向上传播，并且使用至少相同的接收发送信号的端口来允许基站。 信号可以被分离，并且也被不同的基站接收。