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    • 32. 发明授权
    • Receiver with on-demand linearity
    • 接收器具有按需线性度
    • US08594601B2
    • 2013-11-26
    • US13416936
    • 2012-03-09
    • Ahmadreza RofougaranMaryam Rofougaran
    • Ahmadreza RofougaranMaryam Rofougaran
    • H04B1/06H04B7/00
    • H04B17/318H03F1/34H03F3/24H04B17/21H04B2001/0433
    • Aspects of a method and system for on-demand linearity in a receiver are provided. In this regard, in a receiver such as on-chip receiver, a strength of a signal received by one or more antennas may be measured and linearity of the receiver may be controlled in response to the measured signal strength. The linearity may be controlled based on signal strength of in-band and/or out-of-band signals and by configuring component(s) of the receiver. Exemplary components may comprise one or more filter, amplifier, mixer, analog-to-digital converter, feedback loop, and equalizer and/or post corrector. Linearity may be increased, by switching one or more feedback loops and/or an equalizers and/or post correctors into a signal path of the receiver. Power consumption may be decreased, at the expense of reduced linearity, by switching one or more feedback loops and/or an equalizers and/or post correctors out of a signal path of the receiver.
    • 提供接收机中按需线性度的方法和系统的方面。 在这方面,在诸如片上接收机的接收机中,可以测量由一个或多个天线接收的信号的强度,并且可以响应于测量的信号强度来控制接收机的线性度。 可以基于带内和/或带外信号的信号强度以及配置接收器的组件来控制线性度。 示例性组件可以包括一个或多个滤波器,放大器,混频器,模数转换器,反馈回路和均衡器和/或后校正器。 可以通过将一个或多个反馈回路和/或均衡器和/或后校正器切换到接收器的信号路径来增加线性度。 通过从接收机的信号路径切换一个或多个反馈回路和/或均衡器和/或后校正器,可以降低线性度,降低功耗。
    • 33. 发明授权
    • Method and system for remote power distribution and networking for passive devices
    • 用于远程配电和无源器件组网的方法和系统
    • US08588686B2
    • 2013-11-19
    • US12797112
    • 2010-06-09
    • Ahmadreza RofougaranMaryam Rofougaran
    • Ahmadreza RofougaranMaryam Rofougaran
    • H04B7/00
    • H04B5/0037H01L2224/16225H01L2224/32225H01L2224/73204H04B5/0043H01L2924/00
    • A Method and system for remote power distribution and networking for passive devices is provided. In this regard, a sensor comprising a leaky wave antenna may be powered utilizing energy from a radio frequency signal received via the leaky wave antenna. The sensor may be operable to recover a baseband signal from the received radio frequency signal. The sensor may be operable to generate one or more sensor readings in response to the received baseband signal. The sensor may be operable to communicate the sensor reading to a source of the received radio frequency signal via a backscattered signal. The backscattered signal may be generated by controlling spacing between surfaces of the leaky wave antenna. The backscattered signal may be generated by switching a load in and out of a receive path of the sensor and/or by switching between a plurality of feed points of the leaky wave antenna.
    • 提供了一种用于远程配电和无源器件组网的方法和系统。 在这方面,包括泄漏波天线的传感器可以利用经由泄漏波天线接收的射频信号的能量来供电。 该传感器可操作以从接收到的射频信号中恢复基带信号。 传感器可操作以响应于接收到的基带信号而产生一个或多个传感器读数。 传感器可操作以经由后向散射信号将传感器读数传送到所接收的射频信号的源。 可以通过控制泄漏波天线的表面之间的间隔来产生反向散射信号。 反向散射信号可以通过切换传感器的接收路径中的负载和/或通过在漏波天线的多个馈送点之间切换来产生。
    • 34. 发明授权
    • Method and system for inter-PCB communication utilizing a spatial multi-link repeater
    • 利用空间多链路中继器进行PCB间通信的方法和系统
    • US08588279B2
    • 2013-11-19
    • US13564634
    • 2012-08-01
    • Ahmadreza RofougaranMaryam Rofougaran
    • Ahmadreza RofougaranMaryam Rofougaran
    • H04B3/36
    • H05K1/14H04B7/15542H05K2201/10098
    • Aspects of a method and system for inter-PCB communication utilizing a spatial multi-link repeater are provided. In this regard, a signal may be transmitted between printed circuit boards via one or more repeaters, wherein the repeaters may frequency shift received signals to generate repeated signals. Each of the repeated signals may be generated by quadrature down-converting said received signal by mixing the received signal with a first LO signal pair, up-converting the down-converted signal by mixing it with a second LO signal pair, and adding or subtracting an in-phase portion and a quadrature-phase portion of the up-converted signal. Each repeated signal may comprise one or more signal components and a phase and/or amplitude of each of the components may be controlled to control a directivity of the repeated signals. The repeater may reside on one of the plurality of printed circuit boards.
    • 提供了利用空间多链路中继器的用于PCB间通信的方法和系统的方面。 在这方面,可以经由一个或多个中继器在印刷电路板之间传输信号,其中中继器可以频率移位接收的信号以产生重复的信号。 可以通过将接收信号与第一LO信号对混合来对所接收的信号进行正交降频转换来产生每个重复信号,通过将下变频信号与第二LO信号对进行混合,将下变频信号进行上变频,以及加法或减法 上变频信号的同相部分和正交相位部分。 每个重复信号可以包括一个或多个信号分量,并且可以控制每个分量的相位和/或幅度以控制重复信号的方向性。 中继器可以驻留在多个印刷电路板中的一个上。
    • 35. 发明授权
    • Method and system for portable data storage with integrated 60 GHz radio
    • 集成60 GHz无线电的便携式数据存储方法和系统
    • US08583046B2
    • 2013-11-12
    • US13426548
    • 2012-03-21
    • Ahmadreza Rofougaran
    • Ahmadreza Rofougaran
    • H04B7/00H04B1/00
    • H04B7/04H04B7/06H04B7/08
    • Aspects of a method and system for portable data storage with an integrated 60 GHz radio may include establishing a microwave communication link between a wireless portable storage device and a wireless transmitter and/or wireless receiver. Beamforming parameters of a first antenna array coupled to said wireless portable storage device and a second antenna array coupled to said wireless transmitter and/or wireless receiver may be adjusted automatically and/or dynamically. The wireless portable storage and the wireless transmitter and/or wireless receiver may exchange data via said first antenna array and said second antenna array. A secondary wireless communication link may be established to initialize the establishing of the microwave communication link. The secondary wireless communication link may be established via Bluetooth protocol. The wireless portable storage and the wireless transmitter and/or wireless receiver may receive and transmit in the 60 GHz frequency band.
    • 用于具有集成的60GHz无线电的便携式数据存储的方法和系统的方面可以包括在无线便携式存储设备和无线发射器和/或无线接收器之间建立微波通信链路。 耦合到所述无线便携式存储设备的第一天线阵列的波束形成参数和耦合到所述无线发射机和/或无线接收机的第二天线阵列可以被自动和/或动态地调整。 无线便携式存储器和无线发射器和/或无线接收器可以经由所述第一天线阵列和所述第二天线阵列交换数据。 可以建立辅助无线通信链路来初始化微波通信链路的建立。 辅助无线通信链路可以通过蓝牙协议建立。 无线便携式存储器和无线发射机和/或无线接收机可以在60GHz频带中接收和发射。
    • 36. 发明授权
    • Method and system for minimizing power consumption in a communication system
    • 用于最小化通信系统中的功耗的方法和系统
    • US08582497B2
    • 2013-11-12
    • US13558248
    • 2012-07-25
    • Ahmadreza Rofougaran
    • Ahmadreza Rofougaran
    • H04W4/00
    • H03F1/0227H03F1/0222H03F1/0266H03F1/32H03F2200/102H03F2200/207H03F2200/321H03F2200/336H03F2200/451
    • Certain embodiments of the invention may be found in a method and system for minimizing power consumption in a communication system. Exemplary aspects of the invention may comprise configuring a supply voltage of an amplifier to enable communication of data using a first communication protocol during a first timeslot in a TDM frame, reconfiguring the supply voltage of the amplifier to enable communication of data using a different communication protocol, and adjusting the supply voltage of the amplifier in proportion to the envelope of a baseband signal conforming to one of the communication protocols. The first and second communication protocols may conform to various communication protocols, such as WCDMA, HSDPA, HSUDPA, GSM, GPRS, EDGE, WiMAX, OFDM, UWB, ZigBee, and Bluetooth. The baseband signal may be delayed by a number of samples before being input into the amplifier.
    • 可以在用于最小化通信系统中的功率消耗的方法和系统中找到本发明的某些实施例。 本发明的示例性方面可以包括配置放大器的电源电压以使得能够在TDM帧中的第一时隙期间使用第一通信协议进行数据通信,重新配置放大器的电源电压以使得能够使用不同的通信协议进行数据通信 并且与根据通信协议之一的基带信号的包络成比例地调节放大器的电源电压。 第一和第二通信协议可以符合诸如WCDMA,HSDPA,HSUDPA,GSM,GPRS,EDGE,WiMAX,OFDM,UWB,ZigBee和蓝牙之类的各种通信协议。 在输入到放大器之前,基带信号可以延迟多个样本。
    • 37. 发明授权
    • Method and system for frequency tuning based on characterization of an oscillator
    • 基于振荡器特性的频率调谐方法和系统
    • US08525599B2
    • 2013-09-03
    • US12862476
    • 2010-08-24
    • Ahmadreza Rofougaran
    • Ahmadreza Rofougaran
    • H03B5/08
    • H03L7/08H03B2201/025H03J2200/10H03L7/085H03L7/099H03L7/1806H03L2207/06
    • Aspects of a method and system for frequency tuning based on characterization of an oscillator are provided. A value of a first control word which controls a variable impedance of an oscillator may be determined. The determined value may be mapped to a corresponding value of a second control word which controls a variable impedance of a tuned circuit. The mapping may be based on a relationship between the variable impedance of the oscillator and the variable impedance of the tuned circuit, such as logical and/or mathematical relationship. The value of the first control word may be determined based on desired frequency of the tuned circuit and/or based on a desired impedance of the variable impedance of the tuned circuit. The tuned circuit may comprise, for example, an oscillator or a filter.
    • 提供了基于振荡器特征的用于频率调谐的方法和系统的方面。 可以确定控制振荡器的可变阻抗的第一控制字的值。 所确定的值可以映射到控制调谐电路的可变阻抗的第二控制字的对应值。 该映射可以基于振荡器的可变阻抗和调谐电路的可变阻抗之间的关系,例如逻辑和/或数学关系。 可以基于调谐电路的期望频率和/或基于所调谐电路的可变阻抗的期望阻抗来确定第一控制字的值。 调谐电路可以包括例如振荡器或滤波器。
    • 38. 发明授权
    • Method and system for a receiver with undersampling mixing using multiple clock phases
    • 一种采用多个时钟相位采样混合的接收机的方法和系统
    • US08514997B2
    • 2013-08-20
    • US11864743
    • 2007-09-28
    • Ahmadreza RofougaranMaryam Rofougaran
    • Ahmadreza RofougaranMaryam Rofougaran
    • H04L7/043
    • H03D3/009
    • Methods and systems for a receiver with undersampling mixing using multiple clock phases are disclosed and may include undersampling a received wireless signal utilizing multiple undersamplers and clocking each of the undersamplers with a separate clock signal. Each of the clock signals may be at a sampling frequency but with a different phase angle. The difference of the phase angle between each of the clock signals may be adjusted and may be determined by the number of undersamplers. A gain ratio may be configured for two signals summed to generate each of the clock signals for the phase angle adjusting. The two signals may include in-phase and quadrature signals. Each of the summed signals may be normalized utilizing limiters. The sampling frequency may be an integer sub-harmonic of the received signal. The undersamplers may include track and hold or sample and hold circuits.
    • 公开了使用多个时钟相位的具有欠采样混合的接收机的方法和系统,并且可以包括利用多个欠采样器对接收到的无线信号进行欠采样,并用不同的时钟信号为每个欠采样器提供时钟。 每个时钟信号可以是采样频率,但具有不同的相位角。 可以调整每个时钟信号之间的相位角的差异,并且可以由欠采样器的数量确定。 可以将两个信号相加的增益比配置为产生用于相位角调整的每个时钟信号。 两个信号可以包括同相和正交信号。 可以使用限制器对每个相加的信号进行归一化。 采样频率可以是接收信号的整数次谐波。 欠采样器可以包括轨道和保持或采样和保持电路。
    • 39. 发明授权
    • Dynamic impedance matching with LNA
    • 与LNA的动态阻抗匹配
    • US08509720B2
    • 2013-08-13
    • US13427646
    • 2012-03-22
    • Ahmadreza RofougaranMaryam Rofougaran
    • Ahmadreza RofougaranMaryam Rofougaran
    • H04B7/00H04K3/00
    • H03H7/38H03H7/40H04B1/18
    • Aspects of a method and system for LNA adjustment to compensate for dynamic impedance matching are provided. In this regard, an antenna matching network may be configured to maximize received signal strength for a determined frequency and an amplifier gain may be adjusted based on the maximized signal strength such that output levels of the amplifier are between specified limits. The antenna matching network may be programmatically controlled via one or more switching elements. The amplifier gain may be programmatically controlled via one or more bias points. The antenna matching network may be configured for a plurality of frequencies in a frequency band, such as an FM broadcast band, and a configuration for each frequency may be stored. Accordingly, when the receiver is tuned to a frequency, a corresponding configuration may be retrieved from memory.
    • 提供了用于LNA调整以补偿动态阻抗匹配的方法和系统的方面。 在这方面,天线匹配网络可以被配置为使得确定的频率的接收信号强度最大化,并且可以基于最大化的信号强度来调整放大器增益,使得放大器的输出电平在指定限制之间。 天线匹配网络可以通过一个或多个开关元件被编程地控制。 放大器增益可以通过一个或多个偏置点编程控制。 天线匹配网络可以被配置为诸如FM广播频带之类的频带中的多个频率,并且可以存储每个频率的配置。 因此,当接收机被调谐到频率时,可以从存储器检索对应的配置。
    • 40. 发明授权
    • On-package transmit/receive switch and antenna
    • 封装式发射/接收开关和天线
    • US08498586B2
    • 2013-07-30
    • US13565629
    • 2012-08-02
    • Ahmadreza RofougaranMaryam Rofougaran
    • Ahmadreza RofougaranMaryam Rofougaran
    • H04B1/44
    • H04B1/48H01L23/66H01L2223/6677H01L2924/0002H01Q3/30H01Q3/34H01L2924/00
    • Methods and systems for an on-chip and/or on-package T/R switch and antenna are disclosed and may include selectively coupling one or more low noise amplifiers (LNAs) and/or one or more power amplifiers (PAs) to one or more ports of a multi-port distributed antenna utilizing configurable transmit/receive (T/R) switches integrated on a chip with the LNAs and PAs. The LNAs and PAs may be impedance matched to the antenna by coupling them to a port based on a characteristic impedance at the port. The T/R switches may be integrated on a package to which the chip may be coupled. The signals transmitted and received by the antenna may be time division duplexed. The antenna, which may include a microstrip antenna, may be integrated on the chip or the package. The LNA and the PA may be coupled to different ports on the antenna via the T/R switches.
    • 公开了用于片上和/或封装上T / R开关和天线的方法和系统,并且可以包括将一个或多个低噪声放大器(LNA)和/或一个或多个功率放大器(PA)选择性地耦合到一个或多个 利用集成在芯片上的LNA和PA的可配置的发送/接收(T / R)开关,多端口分布式天线的更多端口。 LNA和PA可以通过基于端口处的特性阻抗将它们耦合到端口来与天线阻抗匹配。 T / R开关可以集成在芯片可以耦合到的封装上。 由天线发送和接收的信号可以是时分双工的。 可以包括微带天线的天线可以集成在芯片或封装上。 LNA和PA可以通过T / R开关耦合到天线上的不同端口。