公开(公告)号：US06731747B2

公开(公告)日：2004-05-04

申请号：US09792816

申请日：2001-02-23

申请人： Norman J. Beamish ,  Jeffrey D. Klein

发明人： Norman J. Beamish ,  Jeffrey D. Klein

IPC分类号： H04M100

CPC分类号： H04B3/23

摘要： A system is disclosed for accurately detecting an alert signal. Improving detector accuracy decreases missed detects and false detects. In one example embodiment the detector monitors received telephone signals for an alert signal such as a CPE alert signal. In such a configuration, the invention processes the received signal prior to monitoring by the detector to remove or reduce unwanted echo, interference and/or other signal portions that may otherwise inhibit accurate detection of alert signals sent from a remote location. In one configuration, the invention performs echo suppression or cancellation on the received signal to eliminate or reduce echo, such as may be introduced by a hybrid.

摘要翻译： 公开了一种用于准确地检测报警信号的系统。 提高检测器精度可以减少检测误差和错误检测。 在一个示例实施例中，检测器监视接收的电话信号以获得诸如CPE警报信号的警报信号。 在这种配置中，本发明在由检测器进行监视之前处理接收到的信号，以去除或减少不必要的回波，干扰和/或其他信号部分，否则这些信号部分可能会禁止从远程位置发送的警报信号的精确检测。 在一种配置中，本发明对接收到的信号执行回波抑制或消除以消除或减少回波，例如可以由混合器引入。

公开(公告)号：US06862313B2

公开(公告)日：2005-03-01

申请号：US10127061

申请日：2002-04-18

申请人： John S. Walley ,  D. Vincent Laub ,  Norman J. Beamish

发明人： John S. Walley ,  D. Vincent Laub ,  Norman J. Beamish

IPC分类号： H04B1/30 ,  H04B1/40 ,  H04B1/707 ,  H04B15/00 ,  H04K1/00 ,  H04L27/30

CPC分类号： H04B1/707 ,  H04B1/30 ,  H04B1/408

摘要： A wireless transceiver comprises a digital to analog converter having an input for receiving a digital representation of a direct sequence spread spectrum signal and having an analog output. A filter has an input coupled to the analog output of the digital to analog converter. An adder has a first input coupled to the filtered output and a second input coupled to a loop control voltage generated by a phase lock loop. A VCO integrated into the phase lock loop has a control input coupled to the summed output. An RF output of the VCO produces a continuous phase frequency shift keyed spread spectrum signal in response to the digital representation of the direct sequence spread spectrums signal. A receiver converts received RF signal to baseband in-phase and quadrature that are in turn converted to digitized signals. A demodulator produces chip data that is despread using a matched filter.

摘要翻译： 无线收发器包括具有用于接收直接序列扩频信号的数字表示并具有模拟输出的输入的数模转换器。 滤波器具有耦合到数模转换器的模拟输出的输入。 加法器具有耦合到滤波输出的第一输入和耦合到由锁相环产生的回路控制电压的第二输入。 集成到锁相环中的VCO具有耦合到求和输出的控制输入。 VCO的RF输出响应于直接序列扩频信号的数字表示而产生连续相位频移键控扩频信号。 接收机将接收的RF信号转换成基带同相和正交，然后转换成数字化信号。 解调器产生使用匹配滤波器解扩的芯片数据。

公开(公告)号：US06445732B1

公开(公告)日：2002-09-03

申请号：US09159328

申请日：1998-09-23

申请人： Norman J. Beamish ,  Robert K. Perez

发明人： Norman J. Beamish ,  Robert K. Perez

IPC分类号： H04B346

CPC分类号： H04B17/318

摘要： A method and apparatus which reduces the computational complexity of a receiver subject to power swings in excess of the power swings inherent in wireless communication from normal fading. To accomplish this, attenuation or some other form of signal modification occurs prior to the digital circuitry to reduce the required resolution of the analog to digital converter and other receiver components. A power signal estimator in conjunction with an attenuation control module may control the level of attenuation.

摘要翻译： 一种降低接收机的计算复杂度的方法和装置，该接收机的功率摆动超过无线通信中固有的功率摆动从正常衰落。 为了实现这一点，在数字电路之前发生衰减或某种其他形式的信号修改以减少模数转换器和其它接收机组件所需的分辨率。 与衰减控制模块结合的功率信号估计器可以控制衰减水平。

公开(公告)号：US06744808B1

公开(公告)日：2004-06-01

申请号：US09325107

申请日：1999-06-03

申请人： John S. Walley ,  Norman J. Beamish

发明人： John S. Walley ,  Norman J. Beamish

IPC分类号： H04B1500

CPC分类号： H04B1/707 ,  H04B2201/70703

摘要： Spread spectrum technology is being used in more and more wireless applications. Generally applications of spread spectrum include a fixed spread spectrum code size. In addition in applications that employ time domain duplex, some may employ a fixed duty cycle, for example 50% broadcast and 50% receive, for broadcast and receive functions. Many applications, such as cordless phones, also feature a fixed sampling rate for an input signal. By building systems in which these variables are not fixed but variable manufacturers can make generic type spread spectrum controllers which can be used in a variety of applications. These same circuits can also be controlled to give current devices enhanced characteristics by adjusting data rate for changing conditions, thereby enhancing their performance. By allowing the spreading code to be reduced in length, the data rate of the transmitted signal can be increased without adjusting the bandwidth of the amplifiers used to amplify the transmitted signal. Similarly, more data can be transmitted or spreading code size increased by increasing the transmit duty cycle or the number of timeslices allotted to transmit the signal. The spreading code size can also be increased by using techniques, such as reduced sampling rate, which reduce the amount of data input into the system. Conversely the spreading code length can be increased in order to achieve more range, greater interference tolerance etc. by reducing the data rate or increasing the amount of time allotted to broadcast the signal.

摘要翻译： 扩频技术正在越来越多的无线应用中使用。 一般来说，扩展频谱的应用包括固定的扩频码尺寸。 此外，在采用时域双工的应用中，有些可以采用固定占空比，例如广播和接收功能的50％广播和50％接收。 许多应用，例如无绳电话，也具有用于输入信号的固定采样率。 通过构建这些变量不固定的系统，但可变制造商可以制造可用于各种应用的通用型扩频控制器。 这些相同的电路也可以被控制，以通过调整变化条件的数据速率来提供电流器件的增强特性，从而提高它们的性能。 通过允许扩展码的长度减小，可以增加发送信号的数据速率，而无需调整用于放大发送信号的放大器的带宽。 类似地，可以通过增加分配给发送信号的发射占空比或次数的数量来传输更多数据或扩展码大小增加。 也可以通过使用诸如降低采样率的技术来增加扩展码大小，这减少了输入系统的数据量。 相反，通过减少数据速率或增加分配广播信号的时间量，可以增加扩展码长度以便实现更多的范围，更大的干扰容限等。

公开(公告)号：US06411646B1

公开(公告)日：2002-06-25

申请号：US09107733

申请日：1998-06-30

申请人： John S. Walley ,  D. Vincent Laub ,  Norman J. Beamish

发明人： John S. Walley ,  D. Vincent Laub ,  Norman J. Beamish

IPC分类号： H04B1500

CPC分类号： H04B1/707 ,  H04B1/30 ,  H04B1/408

摘要： A wireless transceiver comprises a digital to analog converter having an input for receiving a digital representation of a direct sequence spread spectrum signal and having an analog output. A bandpass or lowpass filter has an input coupled to the analog output of the digital to analog converter and has a filtered output. An adder has a first input coupled to the filtered output and a second input coupled to a loop control voltage generated by a phase lock loop. The adder produces a summed output. A VCO integrated into the phase lock loop has a control input coupled to the summed output. An RF output of the VCO produces a continuous phase frequency shift keyed spread spectrum signal in response to the digital representation of the direct sequence spread spectrums signal.

摘要翻译： 无线收发器包括具有用于接收直接序列扩频信号的数字表示并具有模拟输出的输入的数模转换器。 带通或低通滤波器具有耦合到数模转换器的模拟输出并具有滤波输出的输入。 加法器具有耦合到滤波输出的第一输入和耦合到由锁相环产生的回路控制电压的第二输入。 加法器产生一个求和输出。 集成到锁相环中的VCO具有耦合到求和输出的控制输入。 VCO的RF输出响应于直接序列扩频信号的数字表示而产生连续相位频移键控扩频信号。

公开(公告)号：US06256476B1

公开(公告)日：2001-07-03

申请号：US09104732

申请日：1998-06-25

申请人： Norman J. Beamish ,  John S. Walley

发明人： Norman J. Beamish ,  John S. Walley

IPC分类号： H04Q720

CPC分类号： H04W52/283 ,  H04W52/08 ,  H04W52/362 ,  H04W52/367 ,  H04W52/54 ,  H04W52/56

摘要： A power management system for a mobile unit wherein the base station detects the quality of the signals transmitted by the mobile unit. Based on this signal quality, the base station determines if the mobile unit should increase the transmission power level. If an increase in transmission power is indicated, the base station sends a signal to the mobile unit to cause the mobile unit to increase transmission power. However, to save battery power, the mobile unit only transmits at the increased power level for a limited amount of time, and then automatically returns to transmitting at the lower power level. Further, a slightly decreased high power level is established to allow the mobile unit to function when it is located away from the base station, yet not near the outer transmission boundary.

摘要翻译： 一种用于移动单元的电源管理系统，其中基站检测由移动单元发送的信号的质量。 基于该信号质量，基站确定移动单元是否应该增加发射功率电平。 如果指示发送功率的增加，则基站向移动单元发送信号，使移动单元增加发送功率。 然而，为了节省电池电量，移动单元仅在有限的时间内以增加的功率电平进行发送，然后自动返回到较低功率电平的发送。 此外，建立了略微降低的高功率电平，以允许移动单元在远离基站而不在外部传输边界附近时起作用。

公开(公告)号：US06252528B1

公开(公告)日：2001-06-26

申请号：US09378325

申请日：1999-08-20

申请人： Robert K. Perez ,  Norman J. Beamish

发明人： Robert K. Perez ,  Norman J. Beamish

IPC分类号： H03M118

CPC分类号： H04M1/573 ,  H03M3/486 ,  H03M3/49

摘要： A variable gain coder-decoder is provided. The variable gain coder-decoder includes a variable gain amplifier in which the amplification gain may be adjusted in one-decibel steps. An analog to digital converter is connected to the variable gain amplifier. The analog to digital converter receives the amplified output of the amplifier, and performs an analog to digital conversion of the amplified output.

摘要翻译： 提供可变增益编码器解码器。 可变增益编码器 - 解码器包括可变增益放大器，其中放大增益可以以一分贝的步长进行调整。 模数转换器连接到可变增益放大器。 模数转换器接收放大器的放大输出，并执行放大输出的模数转换。

公开(公告)号：US20080133636A1

公开(公告)日：2008-06-05

申请号：US11567020

申请日：2006-12-05

申请人： Norman J. Beamish ,  Conor O'Keeffe ,  Richard A. Verellen

发明人： Norman J. Beamish ,  Conor O'Keeffe ,  Richard A. Verellen

IPC分类号： G06G7/02

CPC分类号： H03H17/04 ,  H03H17/0286 ,  H03H17/0294

摘要： A high pass filter adapted for use in a signal processing device comprising a sampler adapted to sample a signal and transmit the samples to the high pass filter, the high pass filter comprising a differentiator and an integrator; a counter which, in use, counts the number of samples received by the high pass filter from the sampler; and a control device which receives a first signal from the counter when the high pass filter has received a first sample from the sampler and receives a second signal from the counter when the high pass filter has received a second or subsequent sample from the sampler; whereupon receipt of the first signal, the control device causes the integrator output signal to substantially equal zero and whereupon receipt of the second signal, the control device causes the integrator output to be a function of an input signal from the differentiator.

摘要翻译： 一种适用于信号处理装置的高通滤波器，包括：采样器，适于采样信号并将样本发送到高通滤波器;高通滤波器包括微分器和积分器; 在使用中计数从采样器接收的高通滤波器的样本数的计数器; 以及控制装置，当所述高通滤波器从所述取样器接收到第一样本时，从所述计数器接收第一信号，并且当所述高通滤波器从所述采样器接收到第二或后续采样时从所述计数器接收第二信号; 于是接收到第一信号时，控制装置使积分器输出信号基本上等于0，于是接收到第二信号，则控制装置使积分器输出成为来自微分器的输入信号的函数。

公开(公告)号：US06766162B1

公开(公告)日：2004-07-20

申请号：US09299202

申请日：1999-04-23

申请人： Norman J. Beamish

发明人： Norman J. Beamish

IPC分类号： H04M1110

CPC分类号： H04M1/82 ,  H04M1/72502 ,  H04M1/72508 ,  H04M3/537 ,  H04M2201/38 ,  H04M2207/18 ,  H04W4/12

摘要： A method and apparatus for indicating message status in a wireless communication system comprising a base station configured to communicate with at least one mobile unit over a wireless interface. The mobile unit includes an indicator having first and second human perceptible states, with the first state indicating a lack of message waiting condition, and the second state indicating a message waiting condition. The base station monitors communications from a messaging system. When a communication is received indicating message status or a change in message status, the base station transmits a command regarding message status to the mobile unit over the wireless interface. In response, the mobile unit maintains or changes the state of the indicator to reflect the message status as determined by the command.

摘要翻译： 一种在无线通信系统中指示消息状态的方法和装置，包括被配置为通过无线接口与至少一个移动单元进行通信的基站。 移动单元包括具有第一和第二人感知状态的指示符，其中第一状态指示消息等待条件不足，第二状态指示消息等待状态。 基站监视来自消息系统的通信。 当接收到指示消息状态的通信或消息状态的改变时，基站通过无线接口向移动单元发送关于消息状态的命令。 作为响应，移动单元保持或改变指示符的状态以反映由命令确定的消息状态。

公开(公告)号：US06653932B1

公开(公告)日：2003-11-25

申请号：US09409297

申请日：1999-09-29

申请人： Norman J. Beamish ,  Robert S. Saunders ,  John S. Walley ,  Raymond Hon Mo Yung

发明人： Norman J. Beamish ,  Robert S. Saunders ,  John S. Walley ,  Raymond Hon Mo Yung

IPC分类号： H04M1104

CPC分类号： H04B3/54 ,  H04B2203/5425 ,  H04B2203/5441 ,  H04B2203/5445 ,  H04B2203/545 ,  H04B2203/5458 ,  H04B2203/5479 ,  H04B2203/5483 ,  H04B2203/5491

摘要： An electrical apparatus which is configured with an antenna, transceiver, or repeater for transmission or reception over a wireless interface. In one embodiment, the appliance interfaces to a user device through a system which includes the power distribution system of the apparatus. In another embodiment, the apparatus, optionally in combination with a user device, forms a node of a wireless communication system.

摘要翻译： 配置有用于通过无线接口进行发送或接收的天线，收发器或中继器的电气设备。 在一个实施例中，设备通过包括设备的配电系统的系统与用户设备接口。 在另一个实施例中，可选地与用户设备组合的装置形成无线通信系统的节点。