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1. 发明申请

US20060116087A1 Control of power amplifiers in devices using transmit beamforming 有权
公开(公告)号：US20060116087A1
公开(公告)日：2006-06-01
申请号：US11326630
申请日：2006-01-06
申请人： Gary Sugar , Chandra Vaidyanathan , Sifen Luo
发明人： Gary Sugar , Chandra Vaidyanathan , Sifen Luo
IPC分类号： H04B1/04 , H04B1/02
CPC分类号： H04W52/42 , H01Q3/28 , H03G3/3042 , H03G3/3089 , H04B1/0483 , H04B7/0615 , H04B7/0617 , H04B7/0669 , H04B7/0845 , H04B7/0857 , H04L27/2601
摘要： A transmitter comprises a plurality of transmit antennas for simultaneously transmitting weighted signals according to a channel transfer function. Each antenna has a corresponding amplifier that is bias controlled according to the transmit weights derived for the antenna transmission. A baseband processor produces digital weighted signals for upconversion and amplification by the amplifiers. Each amplifier is accompanied by a bias circuit responsive to the transmit weights. Alternatively, or additionally, corresponding DC/DC converters are used to control the operating voltage of the amplifiers.

2. 发明申请

US20050215202A1 System and method for antenna diversity using equal power joint maximal ratio combining 有权
标题翻译：使用等功率联合最大比组合的天线分集的系统和方法
公开(公告)号：US20050215202A1
公开(公告)日：2005-09-29
申请号：US10800610
申请日：2004-03-15
申请人： Gary Sugar , Chandra Vaidyanathan
发明人： Gary Sugar , Chandra Vaidyanathan
IPC分类号： H01Q3/28 , H03G3/30 , H04B1/04 , H04B7/005 , H04B7/06 , H04B7/08 , H04L1/06 , H04L25/02 , H04L25/03 , H04L27/26 , H04B1/00 , H01Q3/22 , H04B7/00
CPC分类号： H04L25/0204 , H01Q3/28 , H03G3/3042 , H03G3/3089 , H04B1/0483 , H04B7/0465 , H04B7/0615 , H04B7/0617 , H04B7/0669 , H04B7/0671 , H04B7/0837 , H04B7/0845 , H04B7/0854 , H04B7/0857 , H04L1/06 , H04L5/0023 , H04L27/2601 , H04L2025/03445 , H04W52/42
摘要： An equal gain composite beamforming technique which constrains that the power of the signal output by each antenna is the same, and is equal to the total power of the transmit signal divided by the number N of transmit antennas from which the signal is to be transmitted. By reducing output power requirements for each power amplifier, the silicon area of the power amplifiers are reduced by as much as N times (where N is equal to the number of transmit antennas) relative to a non-equal gain CBF.
摘要翻译：等效增益复合波束形成技术，其限制每个天线输出的信号的功率相同，并且等于发射信号的总功率除以发射天线的数量N，信号将从该天线的数量N发射。通过降低每个功率放大器的输出功率要求，相对于不相等的增益CBF，功率放大器的硅面积减少多达N倍（其中N等于发射天线的数量）。

3. 发明申请

US20080014977A1 System and method for antenna diversity using equal power joint maximal ratio combining 有权
标题翻译：使用等功率联合最大比组合的天线分集的系统和方法
公开(公告)号：US20080014977A1
公开(公告)日：2008-01-17
申请号：US11879156
申请日：2007-07-16
申请人： Gary Sugar , Chandra Vaidyanathan
发明人： Gary Sugar , Chandra Vaidyanathan
IPC分类号： H01Q3/22 , H04B7/00
CPC分类号： H04L25/0204 , H01Q3/28 , H03G3/3042 , H03G3/3089 , H04B1/0483 , H04B7/0465 , H04B7/0615 , H04B7/0617 , H04B7/0669 , H04B7/0671 , H04B7/0837 , H04B7/0845 , H04B7/0854 , H04B7/0857 , H04L1/06 , H04L5/0023 , H04L27/2601 , H04L2025/03445 , H04W52/42
摘要： An equal gain composite beamforming technique which constrains that the power of the signal output by each antenna is the same, and is equal to the total power of the transmit signal divided by the number N of transmit antennas from which the signal is to be transmitted. By reducing output power requirements for each power amplifier, the silicon area of the power amplifiers are reduced by as much as N times (where N is equal to the number of transmit antennas) relative to a non-equal gain CBF.
摘要翻译：一种等效增益复合波束成形技术，其限制每个天线输出的信号的功率相同，并且等于发射信号的总功率除以发射天线的数量N。通过降低每个功率放大器的输出功率要求，相对于不相等的增益CBF，功率放大器的硅面积减少多达N倍（其中N等于发射天线的数量）。

4. 发明申请

US20060013327A1 Apparatus for antenna diversity using joint maximal ratio combining 失效
公开(公告)号：US20060013327A1
公开(公告)日：2006-01-19
申请号：US11231161
申请日：2005-09-20
申请人： Gary Sugar , Chandra Vaidyanathan , Yohannes Tesfai
发明人： Gary Sugar , Chandra Vaidyanathan , Yohannes Tesfai
IPC分类号： H04K1/10 , H04J11/00
CPC分类号： H04L5/0007 , H01Q3/28 , H03G3/3042 , H03G3/3089 , H04B1/0483 , H04B7/0417 , H04B7/0615 , H04B7/0617 , H04B7/0669 , H04B7/0671 , H04B7/0845 , H04B7/0848 , H04B7/0854 , H04B7/0857 , H04L1/06 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/03343 , H04L27/2602 , H04L27/2626 , H04L2025/03426 , H04L2025/03611 , H04W52/42
摘要： A transceiver using composite beamforming technique is provided wherein a first communication device has a plurality of antennas and the second communication has a plurality of antennas. When the first communication device transmits to the second communication device, the transmit signal is multiplied by a transmit weight vector for transmission by each the plurality of antennas and the transmit signals are received by the plurality of antennas at the second communication device. The optimum transmit weight vector and receive weight vector for communication between the first and second communication devices is determined so that there is effectively joint or composite beamforming between the communication devices.

5. 发明申请

US20050003828A1 System and method for locating wireless devices in an unsynchronized wireless environment 审中-公开
标题翻译：用于在非同步无线环境中定位无线设备的系统和方法
公开(公告)号：US20050003828A1
公开(公告)日：2005-01-06
申请号：US10409563
申请日：2003-04-08
申请人： Gary Sugar , David Kloper
发明人： Gary Sugar , David Kloper
IPC分类号： H04W24/00 , H04W24/08 , H04W64/00 , H04Q7/20
CPC分类号： H04W24/00 , H04W24/08 , H04W64/00
摘要： A system and method for determining the location of a device (target device) in a wireless radio environment. The method involves transmitting a first signal. The target device transmits a second signal. The first signal and second signal are received at two or more known locations in the general proximity of the target device. The location of the target device is computed from the time difference of arrival of the first signal and arrival of the second signal at the two or more known locations. This technique does not require the measurements made at the known locations to be time-synchronized and, can be performed completely in software, if desired, using non-real-time post-processing.
摘要翻译：一种用于在无线无线电环境中确定设备（目标设备）的位置的系统和方法。该方法涉及发送第一信号。目标设备发送第二信号。第一信号和第二信号在目标设备的普遍接近的两个或多个已知位置处被接收。目标设备的位置是根据第一信号的到达时间差和第二信号的到达在两个或多个已知位置计算的。该技术不需要在已知位置进行的测量是时间同步的，并且如果需要，可以使用非实时后处理在软件中完全执行测量。

6. 发明申请

US20060205380A1 Signal interfacing techniques to simplify integrated circuit radio designs 失效
标题翻译：信号接口技术来简化集成电路无线电设计
公开(公告)号：US20060205380A1
公开(公告)日：2006-09-14
申请号：US11430063
申请日：2006-05-08
申请人： Gary Sugar , Robert Masucci , Michael Toner
发明人： Gary Sugar , Robert Masucci , Michael Toner
IPC分类号： H04B1/28
CPC分类号： H04B1/40 , H04L7/0008
摘要： A signal interfacing technique for connecting signals between a signal processing device and a MIMO radio integrated circuit (IC) involving multiplexing two or more signals on a connection pin between the radio IC and a signal processing device. According to one technique, transmit and receive signals are multiplexed such that during a transmit mode a transmit signal is coupled on the connection pin from the signal processing device to the radio IC, and during a receive mode a receive signal is coupled from the radio IC on the connection pin to the signal processing device. According to another technique, in-phase (I) and quadrature (Q) signals are multiplexed on a connection pin during both transmit and receive modes.
摘要翻译：一种用于在信号处理装置和MIMO无线电集成电路（IC）之间连接信号的信号接口技术，涉及在无线电IC和信号处理装置之间的连接引脚上复用两个或多个信号。根据一种技术，发射和接收信号被复用，使得在发射模式期间，发射信号从连接引脚耦合到信号处理装置到无线电IC，并且在接收模式期间，接收信号从无线电IC 在信号处理设备的连接引脚上。根据另一种技术，在发射和接收模式期间，同相（I）和正交（Q）信号被多路复用在连接引脚上。

7. 发明申请

US20060178145A1 Monitoring for radio frequency activity violations in a licensed frequency band 有权
公开(公告)号：US20060178145A1
公开(公告)日：2006-08-10
申请号：US11345391
申请日：2006-02-02
申请人： D. Floam , Gary Sugar , Neil Diener
发明人： D. Floam , Gary Sugar , Neil Diener
IPC分类号： H04Q7/20
CPC分类号： H04W24/00 , H04W16/14
摘要： Techniques for monitoring radio frequency (RF) activity in a frequency band where licensed spectrum service is occurring. One or more monitoring devices are deployed at one or more locations in the coverage area of a licensed spectrum service provider. For example, the monitoring device may be integrated into a base station of a licensed spectrum service provider. Each monitoring device receives RF energy and detects whether the radio frequency energy contains activity not associated with the licensed spectrum service provider and whether there is a violation of a secondary usage policy.

8. 发明申请

US20060153318A1 Memoryless spectrum correction algorithm for non-ideal I/Q demodulators 有权
标题翻译：非理想I / Q解调器的无记忆频谱校正算法
公开(公告)号：US20060153318A1
公开(公告)日：2006-07-13
申请号：US11280404
申请日：2005-11-17
申请人： Gary Sugar
发明人： Gary Sugar
IPC分类号： H03D1/04
CPC分类号： H04L27/261 , H03D3/007 , H03D3/009
摘要： An algorithm for correcting the output of an analog I/Q demodulator without the need for calibration or storing state information. The output of the analog I/Q demodulator is digitized, and the discrete-time samples are divided into segments. A digital frequency transform (e.g., a Discrete Fourier Transform) is computed for each segment. The effects of the non-ideal I/Q demodulator are removed by identifying a set of image frequency candidates for each digital frequency transform, and for each image frequency candidate, estimating a set of demodulator imbalance parameters to characterize the demodulator imbalance at that frequency and correcting the digital frequency transform at the image frequency candidate using the imbalance parameters in order to minimize the effects of the imbalance. Each digital frequency transform is corrected independently and consequently no persistent state information needs to be saved between transforms.
摘要翻译：用于校正模拟I / Q解调器的输出而不需要校准或存储状态信息的算法。模拟I / Q解调器的输出被数字化，离散时间采样被分成多个段。为每个段计算数字频率变换（例如，离散傅立叶变换）。通过识别每个数字频率变换的一组图像频率候选以及对于每个图像频率候选，去除非理想I / Q解调器的影响，估计一组解调器不平衡参数以表征该频率处的解调器不平衡，以及使用不平衡参数来校正图像频率候选的数字频率变换，以便最小化不平衡的影响。每个数字频率变换被独立地校正，因此在转换之间不需要保存持久状态信息。

9. 发明授权

US5790538A System and method for voice Playout in an asynchronous packet network 失效
标题翻译：用于语音播放的系统和方法在异步分组网络中
公开(公告)号：US5790538A
公开(公告)日：1998-08-04
申请号：US592586
申请日：1996-01-26
申请人： Gary Sugar
发明人： Gary Sugar
IPC分类号： H04J3/06 , H04L12/64 , H04Q11/04 , H04L12/28 , H04L12/56
CPC分类号： H04Q11/04 , H04J3/0632 , H04L12/64 , H04L12/6418 , H04L2012/6467 , H04L2012/6481 , H04L2012/6489 , H04L2012/6491 , H04Q2213/13034 , H04Q2213/13103 , H04Q2213/1319 , H04Q2213/13214 , H04Q2213/13216 , H04Q2213/13292 , H04Q2213/13362
摘要： A System for Voice Playout in an Unsynchronized Packet Network for use with isochronous and asynchronous data transmission over a communication network having at least one receiving unit and at least one transmitting unit each having independent clocks. A FIFO voice codeword storing device in the receiving unit removes timing jitter from incoming packets--and receives voice packets from a data network. A phase continuous packet clock thereafter removes packets from the FIFO voice codeword storing device which is synchronized to the incoming data rate using the fill status of the FIFO voice codeword storing device as a frequency control signal. A continuous phase resampler removes timing frequency offset without causing packet slips or loss of data. The transmitter inserts the contents of a free running packet counter into each transmitted packet, allowing the receiver to detect lost packets and to properly reproduce silence intervals during Playout. A receive sequence counter increments at the local packet rate to schedule Playouts for multiple voice segments. A clock frequency recovery is utilized where the receiver clock frequency differs from the transmitter clock frequency. When the receive clock is not available, such as voice over packet networks applications, the FIFO voice codeword storing device fill status can control the resampling rate.
摘要翻译：一种用于在具有至少一个接收单元和至少一个发送单元的通信网络上进行同步和异步数据传输的用于同步分组网络中的语音播放的系统，每个发送单元具有独立的时钟。接收单元中的FIFO语音码字存储设备从输入分组中去除定时抖动，并从数据网络接收语音分组。相位连续分组时钟之后，使用FIFO语音码字存储装置的填充状态从FIFO语音码字存储装置中删除与进入数据速率同步的分组作为频率控制信号。连续相位重采样器消除定时频率偏移，而不会导致数据包丢失或数据丢失。发射机将自由运行的分组计数器的内容插入到每个发送的分组中，允许接收机检测丢失的分组，并在播放期间适当地再现静默间隔。接收序列计数器以本地分组速率递增，以调度多个语音段的播放。使用时钟频率恢复，其中接收器时钟频率与发射机时钟频率不同。当接收时钟不可用时，例如通过分组网络语音应用，FIFO语音码字存储设备填充状态可以控制重采样速率。

10. 发明申请

US20080019464A1 Signal Pulse Detection Scheme for Use in Real-Time Spectrum Analysis 有权
标题翻译：用于实时频谱分析的信号脉冲检测方案
公开(公告)号：US20080019464A1
公开(公告)日：2008-01-24
申请号：US11830390
申请日：2007-07-30
申请人： David Kloper , Brian Kane , Gary Sugar
发明人： David Kloper , Brian Kane , Gary Sugar
IPC分类号： H03D1/00
CPC分类号： H04W16/14 , G01R23/16 , H04L1/1664 , H04L1/1867 , H04W24/00
摘要： A spectrum analysis engine (SAGE) that comprises a spectrum analyzer component, a signal detector component, a universal signal synchronizer component and a snapshot buffer component. The spectrum analyzer component generates data representing a real-time spectrogram of a bandwidth of radio frequency (RF) spectrum. The signal detector detects signal pulses in the frequency band and outputs pulse event information entries output, which include the start time, duration, power, center frequency and bandwidth of each detected pulse. The signal detector also provides pulse trigger outputs which may be used to enable/disable the collection of information by the spectrum analyzer and the snapshot buffer components. An alternative pulse detection module is provided that tracks signal pulses by comparing peak data from successive FFT cycles with existing signal pulse data that is derived from comparing peak data for prior FFT cycles. Peaks for new FFT cycles are matched to data associated with signal pulses determined to be occurring over many FFT intervals.
摘要翻译：频谱分析引擎（SAGE），包括频谱分析仪组件，信号检测器组件，通用信号同步器组件和快照缓冲器组件。频谱分析仪组件产生表示射频（RF）频谱带宽的实时谱图的数据。信号检测器检测频带中的信号脉冲，并输出脉冲事件信息条目输出，其中包括每个检测脉冲的开始时间，持续时间，功率，中心频率和带宽。信号检测器还提供脉冲触发输出，可用于启用/禁用频谱分析仪和快照缓冲器组件的信息采集。提供了替代脉冲检测模块，其通过将来自连续FFT周期的峰值数据与从先前FFT周期的比较峰值数据导出的现有信号脉冲数据进行比较来跟踪信号脉冲。用于新的FFT周期的峰值与确定为在许多FFT间隔上发生的信号脉冲相关联的数据匹配。

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