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    • 41. 发明授权
    • Method and wireless communications system using coordinated transmission and training for interference mitigation
    • 方法和无线通信系统采用协调传输和训练​​进行干扰减轻
    • US06377636B1
    • 2002-04-23
    • US09432295
    • 1999-11-02
    • Arogyaswami J. PaulrajPeroor K. SebastianJose TelladoRobert W. Heath, Jr.
    • Arogyaswami J. PaulrajPeroor K. SebastianJose TelladoRobert W. Heath, Jr.
    • H04L100
    • H04B7/0842H04B7/086H04L1/06
    • A method for interference mitigation in a wireless communication system having multiple transmitters and receivers by introducing transmission time delays between the transmission of signals from the individual transmitters to ensure coherent reception of the signals at a specific point in the coverage area, such as at a center of distribution of the receivers. To further aid in interference mitigation the signals are assigned training patterns chosen to be distinguishable by the receiver and to optimize interference mitigation. The training patterns can be selected based on a feedback parameter, e.g., a measure of the quality of interference mitigation obtained from the receiver. The present method can be used in wireless communication systems which re-use frequencies including TDMA, CDMA, FDMA, OFDMA or other multiplex communication systems using a multiple access method or a combination of such methods.
    • 一种用于具有多个发射机和接收机的无线通信系统中的干扰减轻的方法,其通过在来自各个发射机的信号的传输之间引入传输时间延迟,以确保覆盖区域中的特定点处的信号的相干接收,例如在中心 的接收机的分配。 为了进一步帮助干扰减轻,信号被分配训练模式,所选择的训练模式被接收机区分,并优化干扰减轻。 可以基于反馈参数来选择训练模式,例如,从接收器获得的干扰抑制的质量的度量。 本方法可以用于使用多址接入方法或这些方法的组合重复使用包括TDMA,CDMA,FDMA,OFDMA或其他多路复用通信系统的频率的无线通信系统。
    • 43. 发明授权
    • Peak to average power ratio reduction
    • 峰均功率比降低
    • US06314146B1
    • 2001-11-06
    • US09092327
    • 1998-06-05
    • Jose TelladoJohn M. Cioffi
    • Jose TelladoJohn M. Cioffi
    • H03D104
    • H04L27/2623H04L27/2626H04L27/2647
    • The present inventions provide methods and systems for reducing the peak to average power ratio of a multi-carrier signal. Reducing the peak to average power ratio of a signal ensures that amplifiers and transmitters are not saturated, causing loss of data. Further, reducing peak to average power ratios reduces the consumption of power during transmission. Peak to average power ratios is reduced by clipping an original signal at transmission. A receiver receives the clipped signal and makes an estimate of the clipped portions of the signal. Using iterative estimations an approximation is made of the clipped portions of the signal. The approximation of the clipped portions of the signal is used to estimate the original signal. The clipped signal reduces the peak to average power ratio of the transmitted signal, and estimation avoids the need for sending side information in order to decode the clipped signal.
    • 本发明提供了用于降低多载波信号的峰均功率比的方法和系统。 降低信号的峰值与平均功率比确保放大器和发射器不饱和,造成数据丢失。 此外,降低峰值与平均功率比降低了传输期间的功率消耗。 通过在传输时剪切原始信号来降低峰值与平均功率比。 接收器接收限幅信号并估计信号的限幅部分。 使用迭代估计,对信号的限幅部分进行近似。 使用信号的限幅部分的近似来估计原始信号。 被削减的信号降低了发送信号的峰值与平均功率比,并且估计避免了发送侧信息以便解码限幅信号的需要。
    • 46. 发明授权
    • Transceiver spectrum control for cross-talk mitigation
    • 用于串扰缓解的收发信机频谱控制
    • US08804798B2
    • 2014-08-12
    • US13235283
    • 2011-09-16
    • Moshe MalkinJose Tellado
    • Moshe MalkinJose Tellado
    • H04B1/38H04L27/28
    • H04L25/03343H04L25/03878
    • Embodiments of methods, apparatuses, and systems for preprocessing a transmit signal of a transceiver are disclosed. One method includes estimating parameters of a communication link between the transceiver and a link partner transceiver, estimating cross-talk coupling of the transceiver to at least one other transceiver, and adjusting at least one of a transmit power or a transmit signal waveform based on the estimated parameters and estimated cross-talk. One apparatus includes a transceiver that is operative to obtain parameters of a communication link between the transceiver and a link partner transceiver, and to obtain a representation of cross-talk coupling of the transceiver to at least one other transceiver. Further, a controller of the transceiver is operative to adjust at least one of a transmit power level or a transmit signal waveform based on the estimated parameters and estimated cross-talk.
    • 公开了用于预处理收发器的发射信号的方法,装置和系统的实施例。 一种方法包括估计收发器和链路伙伴收发器之间的通信链路的参数,估计收发器与至少一个其他收发器的串扰耦合,以及基于所述收发器的发射功率或发射信号波形来调整至少一个 估计参数和估计的串扰。 一种装置包括收发器,其可操作以获得收发器和链路伙伴收发器之间的通信链路的参数,并且获得收发器与至少一个其他收发器的串扰耦合的表示。 此外,收发器的控制器可操作以基于估计的参数和估计的串扰来调整发射功率电平或发射信号波形中的至少一个。
    • 48. 发明授权
    • Reducing electromagnetic interference in a receive signal with an analog correction signal
    • 用模拟校正信号降低接收信号的电磁干扰
    • US08792597B2
    • 2014-07-29
    • US12818549
    • 2010-06-18
    • Moshe MalkinJose Tellado
    • Moshe MalkinJose Tellado
    • H04L1/00
    • H04B15/00H04B3/30
    • Embodiments of methods and apparatuses for reducing electromagnetic interference in a receive signal are disclosed. One method includes receiving a receive signal. An analog cancellation signal is generated. The analog cancellation signal is summed with a receive signal, thereby mitigating electromagnetic interference in the receive signal. One apparatus includes a transceiver that includes a receive analog to digital converter (ADC) sampling a receive signal. Electromagnetic interference (EMI) processing circuitry generates an analog cancellation signal. The analog cancellation signal is summed with a receive signal, thereby mitigating electromagnetic interference in the receive signal.
    • 公开了用于减少接收信号中的电磁干扰的方法和装置的实施例。 一种方法包括接收接收信号。 产生模拟消除信号。 模拟消除信号与接收信号相加,从而减轻接收信号中的电磁干扰。 一种装置包括收发器,其包括对接收信号进行采样的接收模数转换器(ADC)。 电磁干扰(EMI)处理电路产生模拟消除信号。 模拟消除信号与接收信号相加,从而减轻接收信号中的电磁干扰。
    • 50. 发明申请
    • IMAGING OBSERVATION TIMING BASED ON RADIATION TREATMENT SYSTEM ELEMENT DELAY
    • 基于辐射处理系统元件延迟成像观测时序
    • US20120316379A1
    • 2012-12-13
    • US13550575
    • 2012-07-16
    • Gregory RaleighJose TelladoAlireza Raissinia
    • Gregory RaleighJose TelladoAlireza Raissinia
    • A61N5/10
    • A61N5/1049A61N2005/1061
    • Systems and methods are provided for imaging observation timing based on radiation treatment system element delay. One system includes an imaging element configured to generate a first observation of an object, the first observation being generated at a first time, wherein the object is associated with a volume of interest (VOI). The system is further configured to determine a plurality of positionings of the VOI based at least in part on the first observation of the object, determine a first radiation treatment system configuration based at least in part on one or more parameters of the plurality of positionings of the VOI, configure the radiation treatment system based on the first radiation treatment system configuration, and aid in administering of radiation, by a radiation treatment system element of the radiation treatment system, to at least a portion of the patient based on the first radiation treatment system configuration.
    • 提供了基于放射治疗系统元件延迟的成像观察定时的系统和方法。 一个系统包括被配置为产生对象的第一观察的成像元件,第一观察是在第一时间生成的,其中所述对象与感兴趣体积(VOI)相关联。 该系统还被配置为至少部分地基于对象的第一观察来确定VOI的多个定位,至少部分地基于多个位置的多个位置的一个或多个参数来确定第一辐射处理系统配置 VOI,基于第一辐射处理系统配置配置辐射处理系统,并且有助于辐射处理系统的辐射处理系统元件对基于第一辐射处理的患者的至少一部分施加辐射 系统配置。