公开(公告)号：US20070253511A1

公开(公告)日：2007-11-01

申请号：US11380892

申请日：2006-04-28

申请人： Raul Salvi ,  Jerry Bolton ,  Charles Ruelke

发明人： Raul Salvi ,  Jerry Bolton ,  Charles Ruelke

IPC分类号： H04L27/00

CPC分类号： H04L25/062

摘要： A method and apparatus for improving signal reception in a receiver (100) by performing all-channel and/or on-channel estimations on a received signal so as to predict future RF environments. The prediction is achieved through the use of one or more detector systems (122, 124) positioned to sample and detect predetermined signal metrics of the received signal (103) prior to analog-to-digital conversion (112) and subsequent post-processing (114). Future estimations of the channel condition are thus generated prior to the arrival of the actual samples (115) at a controller section (116). The detectors (122, 124) provide triggers (123, 125) to the controller (116) so that active stages (130) within the receiver (100) can be adjusted and scaled as needed via a serial port interface (SPI) (126) based on signal conditions.

摘要翻译： 一种用于通过对接收到的信号进行全通道和/或通道上估计来改善接收器（100）中的信号接收以预测将来的RF环境的方法和装置。 通过使用一个或多个检测器系统（122,124）来实现预测，所述检测器系统定位成在模数转换（112）和随后的后处理（112）之后采样和检测接收信号（103）的预定信号度量， 114）。 因此，在实际样本（115）到达控制器部分（116）之前生成信道条件的未来估计。 检测器（122,124）向控制器（116）提供触发（123,125），使得可以根据需要通过串行端口接口（SPI）（126）来调整和缩放接收器（100）内的有源级（130） ）基于信号条件。

公开(公告)号：US20070135064A1

公开(公告)日：2007-06-14

申请号：US11298070

申请日：2005-12-09

申请人： Charles Ruelke ,  Jerry Bolton ,  Raul Salvi

发明人： Charles Ruelke ,  Jerry Bolton ,  Raul Salvi

IPC分类号： H04B1/04

CPC分类号： H04B1/30

摘要： Systems and method for reducing phase imbalance in radio frequency (RF) signals are disclosed. The phase imbalance in an RF signal may be due to phase imbalance in the local oscillator used for upconversion in a transmitter, and downconversion in a receiver. The RF signal is converted to a digital signal. The phase imbalance in the digital signal is measured by using a digital signal processor. The digital signal processor generates a compensation signal in response to the measurement of the phase imbalance. The compensation signal is used to generate a tuning signal to tune the local oscillator used for the upconversion or downconversion, thereby reducing the phase imbalance.

摘要翻译： 公开了用于减少射频（RF）信号的相位不平衡的系统和方法。 RF信号中的相位不平衡可能是由于在发射机中用于上变频的本地振荡器的相位不平衡以及接收机中的下变频引起的。 RF信号被转换成数字信号。 通过使用数字信号处理器来测量数字信号中的相位不平衡。 数字信号处理器响应于相位不平衡的测量而产生补偿信号。 补偿信号用于产生调谐信号以调谐用于上变频或下变频的本地振荡器，从而减少相位不平衡。

公开(公告)号：US20060033661A1

公开(公告)日：2006-02-16

申请号：US10916821

申请日：2004-08-12

申请人： Charles Swope ,  Ruben Rivera ,  Jeffrey Underwood ,  John Melton ,  Charles Ruelke

发明人： Charles Swope ,  Ruben Rivera ,  Jeffrey Underwood ,  John Melton ,  Charles Ruelke

IPC分类号： G01S5/02 ,  H04N7/18

CPC分类号： G01S3/26 ,  G01S3/046

摘要： A location determination device (104) is worn on a user's head to facilitate searching and tracking for another individual carrying a portable radio (102) as well as locating exit routes. At least two antennas (108), a monopulse receiver (110) and a display are integrated into the location determination device (104). Location determination device (104) scans for an incoming signal (106) from the portable device (102) and coverts the signal into angular location data. The location data and egress information are displayed to the peripheral vision of the user of the location determination device (104).

摘要翻译： 位置确定装置（104）佩戴在用户的头部上，以便于携带便携式无线电（102）的另一个人以及定位出口路线的搜索和跟踪。 至少两个天线（108），单脉冲接收器（110）和显示器被集成到位置确定设备（104）中。 位置确定设备（104）从便携式设备（102）扫描输入信号（106），并将信号覆盖成角位置数据。 位置数据和出口信息被显示给位置确定装置（104）的用户的周边视觉。

公开(公告)号：US20060068800A1

公开(公告)日：2006-03-30

申请号：US10954575

申请日：2004-09-30

申请人： Charles Ruelke ,  Apoorv Chaudhri ,  Darrell Stogner

发明人： Charles Ruelke ,  Apoorv Chaudhri ,  Darrell Stogner

IPC分类号： H04Q7/20

CPC分类号： H04W36/20 ,  H04W36/36

摘要： A method for maximizing intermodulation interference protection during a handoff between radio cell sites (300) includes scanning a plurality of radio channels (302) and measuring the signal power (307, 315) for at least one of the radio channels. One or more receiver attenuators (313) are then set based on the detection of intermodulation (IM) interference of the measured channel. The attenuators are then scaled (311) based on the degree of IM interference. If the attenuators cannot mitigate this interference below some predetermined level, the radio channel is changed (321) and the process begins again to ensure a high quality of communication with a cell site.

摘要翻译： 一种用于在无线电小区站点（300）之间切换期间最大化互调干扰保护的方法包括扫描多个无线电信道（302）并测量至少一个无线电信道的信号功率（307,315）。 然后基于所测量的信道的互调（IM）干扰的检测来设置一个或多个接收机衰减器（313）。 然后基于IM干扰的程度对衰减器进行缩放（311）。 如果衰减器不能将这种干扰降低到低于某一预定水平，则无线电信道被改变（321），并且该过程再次开始以确保与小区站点的高质量的通信。

公开(公告)号：US20050047533A1

公开(公告)日：2005-03-03

申请号：US10649427

申请日：2003-08-26

申请人： Charles Ruelke ,  Moshe Ben-Ayun ,  David Graham ,  Mark Rozental

发明人： Charles Ruelke ,  Moshe Ben-Ayun ,  David Graham ,  Mark Rozental

IPC分类号： H03G3/00 ,  H03G3/20 ,  H03G3/30 ,  H04L27/08

CPC分类号： H03G3/3078 ,  H03G3/001 ,  H03G3/3052

摘要： An automatic gain control (AGC) method and circuit (10) within a receiver uses a digital state machine (26) to implement the AGC function. independent from interaction with a host processor (36) and for multiple modulation protocols without duplicating circuitry. Modulation protocol and parameters for any of various gain responses are stored in a register (29). Multiple states, each corresponding to a predetermined range of RF input signal strength, are stored in the register. Each state contains parameters that determine a gain control signal for controlling a variable gain amplifier (16). The states are independent and may be selectively disabled to create asymmetric responses. Within any state, an adaptable number of iterations may be set to implement a different update rate or step size after a predetermined number of closed loop gain change iterations has not resulted in a transition to a state that represents a desired output gain.

摘要翻译： 接收机内的自动增益控制（AGC）方法和电路（10）使用数字状态机（26）来实现AGC功能。 独立于与主处理器（36）的交互和不具有复制电路的多调制协议。 任何各种增益响应的调制协议和参数都存储在寄存器（29）中。 每个对应于RF输入信号强度的预定范围的多个状态被存储在寄存器中。 每个状态包含确定用于控制可变增益放大器（16）的增益控制信号的参数。 状态是独立的，并且可以被选择性地禁用以产生不对称响应。 在任何状态下，在预定数量的闭环增益变化迭代尚未导致转换到表示期望的输出增益的状态之后，可设置可适应数量的迭代以实现不同的更新速率或步长。

公开(公告)号：US20060041395A1

公开(公告)日：2006-02-23

申请号：US10924044

申请日：2004-08-23

申请人： Charles Ruelke ,  Charles Swope

发明人： Charles Ruelke ,  Charles Swope

IPC分类号： G01R23/00

CPC分类号： A62B99/00

摘要： A system for integrating environmental sensors and asynchronous ubication repeaters forming an n-point spatially random virtual lattice network (100) includes a ubication repeater (101) for communicating both positional and environmental information to a two-way radio transceiver (102) used by police or firefighters. The ubication repeater (101) initially determines its position upon actuation from the two-way radio transceiver (102) where environmental information can be transmitted to the firefighter's two-way radio transceiver (102) or to a central location (104). The central location (102) can provide a composite overview of an environmental situation during an emergency.

公开(公告)号：US20060014515A1

公开(公告)日：2006-01-19

申请号：US10890691

申请日：2004-07-14

申请人： Charles Ruelke ,  Nicholas Cafaro ,  Robert Stengel

发明人： Charles Ruelke ,  Nicholas Cafaro ,  Robert Stengel

IPC分类号： H04B1/18 ,  H04B1/26

CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D7/1483 ,  H03D7/165

摘要： A dynamically matched mixer system (200) for use in a direct conversion radio frequency (RF) receiver includes a frequency generator (201, 203, 205) that includes plurality of dividers (407) for providing differential local oscillator reference sources (FLO+ and FLO−) and mitigation frequency reference sources (F1 and F2) from reference oscillator (205). A mixer (209) mixes the differential local oscillator reference sources (FLO+ and FLO−) and the mitigation frequency reference sources (F1 and F2) while dynamic matching units (211, 213) are used for receiving the mitigation frequency reference sources and matching switching parameters of differential input signals (IRF+ and IRF−) and differential baseband output signals (IBB+ and IBB−). The frequencies of the mitigation frequency reference sources (F1 and F2) are selected so as to establish a non-integer relationship to the reference oscillator (201) for mitigating the occurrence of interference with FLO+ and FLO−

摘要翻译： 用于直接转换射频（RF）接收机的动态匹配混频器系统（200）包括频率发生器（201,203,205），其包括多个分频器（407），用于提供差分本地振荡器参考源（F _{and and> LO LO LO LO LO LO LO LO）和缓解频率参考源（F 1和F 2） 单元（211,213）用于接收缓解频率参考源和差分输入信号（I + RF +和I + RF - ）的匹配切换参数和差分基带输出信号 （I BB +和/或BB - ）。 选择缓解频率参考源（F 1和F 2）的频率以便建立与参考振荡器（201）的非整数关系，以便减轻与F LO和/ F}

公开(公告)号：US20050153676A1

公开(公告)日：2005-07-14

申请号：US10754654

申请日：2004-01-09

申请人： Charles Ruelke ,  Richard Young

发明人： Charles Ruelke ,  Richard Young

IPC分类号： H03D3/00 ,  H04B1/00 ,  H04B1/30

CPC分类号： H04B1/30 ,  H03D3/008

摘要： An adaptive dc compensation technique (100) eliminates dc error for both digital and constant envelope modulation protocols (108). For analog modulation, a dc averaging technique utilizes piece-wise continuous dc averaging (110) that calculates discrete dc error values over a variable number of samples (112) and updates the dc compensation value as a fixed value for a specified sample length (114). The piece-wise “update-and-hold” technique (110) results in a pseudo high pass filter response with an equivalent corner. For digital modulation, a continuous high pass filter section of the receiver is enabled (120).

摘要翻译： 自适应直流补偿技术（100）消除数字和恒定包络调制协议（108）的直流误差。 对于模拟调制，直流平均技术使用分段连续直流平均（110），其在可变数量的样本（112）上计算离散直流误差值，并将直流补偿值更新为指定样本长度的固定值（114 ）。 分段式“更新和保持”技术（110）导致具有等效角的伪高通滤波器响应。 对于数字调制，使能接收器的连续高通滤波器部分（120）。

公开(公告)号：US07373125B2

公开(公告)日：2008-05-13

申请号：US10376812

申请日：2003-02-28

申请人： Nihal Godambe ,  John W. Simmons ,  James Goatley ,  Charles Ruelke

发明人： Nihal Godambe ,  John W. Simmons ,  James Goatley ,  Charles Ruelke

IPC分类号： H04B1/06

CPC分类号： H04B1/1027

摘要： A communication module includes a variable gain amplifier, a mixer stage responsive to the variable gain amplifier, a post-mixer amplifier stage responsive to the mixer stage, and an off-channel signal detector responsive to the post-mixer amplifier stage. The post-mixer amplifier stage is to produce a first differential signal and a second differential signal. The off-channel signal detector has a first input to receive the first differential signal and has a second input to receive the second differential signal. The off-channel signal detector includes a programmable hysteresis comparator module, and the off-channel signal detector has an output to produce an output signal that indicates whether an off-channel signal condition is detected.

摘要翻译： 通信模块包括可变增益放大器，响应于可变增益放大器的混频器级，响应于混频级的后混频放大器级，以及响应后混频放大器级的偏离信道信号检测器。 后混频放大器级用于产生第一差分信号和第二差分信号。 偏离信道信号检测器具有接收第一差分信号的第一输入端，并具有用于接收第二差分信号的第二输入端。 偏离信道信号检测器包括可编程滞后比较器模块，并且偏离信道信号检测器具有产生指示是否检测到偏离信道状态的输出信号的输出。

公开(公告)号：US20060251189A1

公开(公告)日：2006-11-09

申请号：US11123291

申请日：2005-05-06

申请人： Charles Ruelke ,  Kar Oung ,  Ting Tang ,  Richard Young

发明人： Charles Ruelke ,  Kar Oung ,  Ting Tang ,  Richard Young

IPC分类号： H04L27/22

CPC分类号： H04L25/20

摘要： A method for correcting I/Q imbalance in a received signal is disclosed. The method includes the steps of grouping (202) the received signal into a predetermined number of clusters, and determining (204) at least one coefficient value by feeding the predetermined number of clusters into a nested loop. The method further includes computing (206) a compensation value based on the at least one coefficient value, and correcting (208) the I/Q imbalance in the received signal by using the compensation value.

摘要翻译： 公开了一种用于校正接收信号中的I / Q不平衡的方法。 该方法包括以下步骤：将接收到的信号分组（202）到预定数量的聚类中，并且通过将预定数量的聚类馈送到嵌套循环来确定（204）至少一个系数值。 该方法还包括基于至少一个系数值来计算（206）补偿值，并通过使用补偿值来校正（208）接收信号中的I / Q不平衡。