公开(公告)号：WO2009023302A3

公开(公告)日：2009-02-19

申请号：PCT/US2008/061846

申请日：2008-04-29

Applicant: RAMBUS INC. ,  ABBASFAR, Aliazam ,  ARYANFAR, Farshid

Inventor： ABBASFAR, Aliazam ,  ARYANFAR, Farshid

IPC: H04L27/20 ,  H04L27/22 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08

Abstract: Embodiments of a circuit are described. In this circuit, a modulation circuit provides a first modulated electrical signal and a second modulated electrical signal, where a given modulated electrical signal, which can be either the first modulated electrical signal or the second modulated electrical signal, includes minimum-shift keying (MSK) modulated data. Moreover, a first phase-adjustment element, which is coupled to the modulation circuit, sets a relative phase between the first modulated electrical signal and the second modulated electrical signal based on a phase value of the first phase-adjustment element. Additionally, an output interface, which is coupled to the first phase-adjustment element, is coupled to one or more antenna elements which output signals. These signals include a quadrature phase-shift-keying (QPSK) signal corresponding to the first modulated electrical signal and the second modulated electrical signal.

公开(公告)号：WO2010065789A2

公开(公告)日：2010-06-10

申请号：PCT/US2009/066656

申请日：2009-12-03

Applicant: RAMBUS INC. ,  ARYANFAR, Farshid ,  ABBASFAR, Aliazam ,  AMIRKHANY, Amir

Inventor： ARYANFAR, Farshid ,  ABBASFAR, Aliazam ,  AMIRKHANY, Amir

IPC: H04L12/28 ,  H04L29/02

CPC classification number: H04L25/0272 ,  H04L25/03878

Abstract: The frequency response of a first component signal path of a differential signaling link is adjusted to offset a notch in the frequency response from a corresponding notch in the frequency response of a second component signal path of the differential signaling link.

Abstract translation: 差分信令链路的第一分量信号路径的频率响应被调整为从差分信令的第二分量信号路径的频率响应中的对应陷波偏移频率响应中的陷波 链接。

公开(公告)号：WO2012125237A2

公开(公告)日：2012-09-20

申请号：PCT/US2012/024197

申请日：2012-02-07

Applicant: RAMBUS INC. ,  KHAWSHE, Vijay ,  ARYANFAR, Farshid

Inventor： KHAWSHE, Vijay ,  ARYANFAR, Farshid

IPC: H03B5/08 ,  G11C7/22

CPC classification number: H03L7/08 ,  G06F1/04 ,  G06F1/10 ,  G11C5/005 ,  G11C5/06 ,  G11C7/222 ,  G11C8/18 ,  H01L2224/16145 ,  H01L2224/16227 ,  H01L2224/17181 ,  H01L2924/15311 ,  H01L2924/19103 ,  H01L2924/19104 ,  H03L7/099

Abstract: Die-to-die interconnect structures are leveraged to form the inductive component of an LC oscillator, thus yielding an LC tank distributed across multiple IC dies rather than lumped in a single die. By this arrangement, reliance on area/power-consuming on-chip inductors may be reduced or eliminated, and phase-aligned clocks may be extracted from the LC tank within each of the spanned IC dies, obviating multiple oscillator instances or complex phase alignment circuitry.

Abstract translation: 利用裸片互连结构来形成LC振荡器的电感组件，从而产生分布在多个IC裸片上的LC储能器而不是集中在单个裸片中。 通过这种布置，可以减少或消除对区域/功耗片上电感器的依赖，并且可以从每个跨接IC管芯内的LC槽提取相位对准的时钟，从而避免多个振荡器实例或复杂的相位对齐电路

公开(公告)号：WO2011046845A2

公开(公告)日：2011-04-21

申请号：PCT/US2010/052115

申请日：2010-10-09

Applicant: RAMBUS INC. ,  ARYANFAR, Farshid ,  LEE, Hae-Chang ,  CHANG, Kun-Yung ,  WU, Ting ,  WERNER, Carl ,  KOOCHAKZADEH, Masoud

Inventor： ARYANFAR, Farshid ,  LEE, Hae-Chang ,  CHANG, Kun-Yung ,  WU, Ting ,  WERNER, Carl ,  KOOCHAKZADEH, Masoud

IPC: H04L12/02

CPC classification number: H03L7/093 ,  G06F1/10 ,  H03L7/0802

Abstract: A signal distribution network has segments that each have a buffer circuit, a transmission line coupled to the buffer circuit, an inductor coupled to the buffer circuit through the transmission line, and a variable capacitance circuit coupled to the inductor and coupled to the buffer circuit through the transmission line. A capacitance of the variable capacitance circuit is set to determine a phase and an amplitude of a signal transmitted through the transmission line. A signal distribution network can include a phase detector, a loop filter circuit, and a resonant delay circuit. The phase detector compares a phase of a first periodic signal to a phase of a second periodic signal. The resonant delay circuit has a variable impedance circuit having an impedance that varies based on changes in an output signal of the loop filter circuit.

Abstract translation: 信号分配网络具有分段，每个分段具有缓冲器电路，耦合到缓冲器电路的传输线，通过传输线耦合到缓冲器电路的电感器以及耦合到缓冲器电路的可变电容电路 电感器并通过传输线耦合到缓冲电路。 可变电容电路的电容被设置为确定通过传输线传输的信号的相位和幅度。 信号分配网络可以包括相位检测器，环路滤波器电路和谐振延迟电路。 相位检测器将第一周期性信号的相位与第二周期性信号的相位进行比较。 谐振延迟电路具有可变阻抗电路，其阻抗根据环路滤波器电路的输出信号的变化而变化。

公开(公告)号：WO2013028296A1

公开(公告)日：2013-02-28

申请号：PCT/US2012/047751

申请日：2012-07-20

Applicant: RAMBUS INC. ,  ARYANFAR, Farshid ,  REN, Jihong

Inventor： ARYANFAR, Farshid ,  REN, Jihong

IPC: H04B7/04 ,  H01Q3/26

CPC classification number: H01Q1/50 ,  H01Q1/241 ,  H01Q3/2647 ,  H01Q3/267 ,  H04B17/12 ,  H04B17/13 ,  H04B17/14

Abstract: The disclosed embodiments relate to a technique for calibrating a retro-directive array. During the calibration process, the system measures a gain g 1 through a first pair of antennas in the retro-directive array. Next, the system measures a gain g 2 through a second pair of antennas in the retro-directive array. The system then simultaneously measures a combined gain G 1 , 2 through the first and second pairs of antennas in the retro-directive array. If G 1 , 2 is less than g 1 + g 2 by more than a threshold value, the system calibrates a phase relationship between the first and second pairs of antennas.

Abstract translation: 所公开的实施例涉及用于校准后向指令阵列的技术。 在校准过程中，系统通过反向指令阵列中的第一对天线测量增益g1。 接下来，系统通过后向指令阵列中的第二对天线测量增益g2。 然后，该系统同时测量通过后向指令阵列中的第一和第二对天线的组合增益G1.2。 如果G1,2小于g1 + g2超过阈值，则系统校准第一和第二对天线之间的相位关系。

公开(公告)号：WO2012003061A1

公开(公告)日：2012-01-05

申请号：PCT/US2011/038154

申请日：2011-05-26

Applicant: RAMBUS INC. ,  ARYANFAR, Farshid

Inventor： ARYANFAR, Farshid

IPC: H04B5/00 ,  H04B7/04 ,  H04B7/10 ,  H04B7/06

CPC classification number: H01Q21/24 ,  H01Q1/2291 ,  H04B5/0025 ,  H04B5/0031 ,  H04B5/0081 ,  H04B7/0413 ,  H04B7/0469 ,  H04B7/0689 ,  H04B7/10 ,  Y02B70/30 ,  Y02D70/166 ,  Y02D70/42 ,  Y02D70/442 ,  Y02D70/444

Abstract: A near-field communication (NFC) system supports increased data rates using a multiple-input- multiple-output (MIMO) interface. Multiple receive antennas are positioned within the near field of multiple transmit antennas. The NFC system uses a combination of antenna spacing and polarizations to reduce correlation between channels, and thus improves performance by creating closer to ideal MIMO operation. Such system can also be operated as parallel SISO links with reduced cross-channel interference resulting in low power consumption.

Abstract translation: 近场通信（NFC）系统使用多输入多输出（MIMO）接口支持增加的数据速率。 多个接收天线位于多个发射天线的近场内。 NFC系统使用天线间隔和极化的组合来减少信道之间的相关性，从而通过创建更接近理想的MIMO操作来提高性能。 这种系统也可以作为具有减少的跨信道干扰的并行SISO链路来操作，导致低功耗。

公开(公告)号：WO2011090886A3

公开(公告)日：2011-07-28

申请号：PCT/US2011/021205

申请日：2011-01-13

Applicant: RAMBUS INC. ,  CHEN, Yu, Ju ,  ARYANFAR, Farshid ,  WERNER, Carl, W.

Inventor： CHEN, Yu, Ju ,  ARYANFAR, Farshid ,  WERNER, Carl, W.

IPC: A63F13/00 ,  A63F13/06 ,  G06F3/033

Abstract: A gaming system is disclosed comprising a console unit having a processor and transceiver circuitry. The transceiver circuitry couples to the processor and includes respective receiver and transmitter circuits. A first phased array antenna interface is employed to transmit and receive directional signals in response to the processor. The system employs a mobile game controller including a second phased array antenna interface to receive and redirect the directional signals back to the first phased array antenna interface. The processor generates proximity data based at least in part on a parameter associated with the directional signals, the proximity data representing the proximity of the mobile game controller with respect to the game console unit.

公开(公告)号：WO2012118619A2

公开(公告)日：2012-09-07

申请号：PCT/US2012/025312

申请日：2012-02-15

Applicant: RAMBUS INC. ,  ARYANFAR, Farshid

Inventor： ARYANFAR, Farshid

IPC: H04B7/01 ,  H04B7/04

CPC classification number: H04B7/061 ,  H01Q3/2647 ,  H03F2200/198 ,  H03F2200/204 ,  H04B1/44 ,  H04B7/0671 ,  H04B7/0854 ,  H04B7/10 ,  H04L27/12

Abstract: The disclosed embodiments relate to a retro-directive array that facilitates a tracking operation. This retro-directive array includes a first antenna configured to receive an input signal which is substantially circularly polarized from a tracking device. The first antenna separates the input signal into two signal components (e.g., E X and E Y ) associated with different orthogonal polarizations, wherein the two signal components comprise a quadrature signal wherein E Y = j•E X . The retro-directive array also includes a bi-directional quadrature gain (BQG) module coupled to the first antenna which is configured to boost the quadrature signal. It additionally includes a second antenna which configured to transmit the boosted quadrature signal to the tracking device. The disclosed embodiments also relate to a transceiver switch, which includes: an input configured to receive a signal to be transmitted, and two phase mixers configured to receive the signal to be transmitted and phase inputs I and Q, and to produce a signal comprising two quadrature signal components Si and SQ, respectively, wherein S Q = j S I . The transmit switch also includes a hybrid coupler, which is configured to combine S I phase shifted by 180° with S Q phase shifted by 90° to produce a transmit output which is proportionate to S; and a switching mechanism configured to turn off the transmit output by swapping the phase inputs I and Q to the phase mixers.

Abstract translation: 所公开的实施例涉及促进跟踪操作的后向指令阵列。 该后向指令阵列包括被配置为接收从跟踪装置基本上圆偏振的输入信号的第一天线。 第一天线将输入信号分离成与不同正交极化相关联的两个信号分量（例如，EX和EY），其中两个信号分量包括正交信号，其中EY = j°EX。 后向指令阵列还包括耦合到第一天线的双向正交增益（BQG）模块，其被配置为提升正交信号。 它还包括配置成将升压的正交信号传送到跟踪装置的第二天线。 所公开的实施例还涉及收发器开关，其包括：被配置为接收要发送的信号的输入端和被配置为接收要发送的信号和相位输入I和Q的两个相位混频器，并且产生包括两个 正交信号分量Si和SQ，其中SQ = j SI。 发射开关还包括混合耦合器，其被配置为将SI相移180°的SQ相移移位90°以产生与S成正比的发射输出; 以及切换机构，被配置为通过将相位输入I和Q交换到相位混合器来关闭发送输出。

公开(公告)号：WO2011059842A2

公开(公告)日：2011-05-19

申请号：PCT/US2010/054900

申请日：2010-10-31

Applicant: RAMBUS INC. ,  LEIBOWITZ, Brian ,  LEE, Hae-Chang ,  ARYANFAR, Farshid ,  CHANG, Kun-Yung ,  SHEN, Jie

Inventor： LEIBOWITZ, Brian ,  LEE, Hae-Chang ,  ARYANFAR, Farshid ,  CHANG, Kun-Yung ,  SHEN, Jie

CPC classification number: H03D13/00 ,  H03L7/08 ,  H03L7/0814 ,  H03L7/0816 ,  H03L7/085

Abstract: A phase detection circuit can include two phase detectors that each generate a non-zero output in response to input signals being aligned in phase. The input signals are based on two periodic signals. The phase detection circuit subtracts the output signal of one phase detector from the output signal of the other phase detector to generate a signal having a zero value when the periodic signals are in phase. Alternatively, a phase detector generates a phase comparison signal indicative of a phase difference between periodic signals. The phase comparison signal has a non-zero value in response to input signals to the phase detector being aligned in phase. The input signals are based on the periodic signals. An output circuit receives the phase comparison signal and generates an output having a zero value in response to the periodic signals being aligned in phase.

Abstract translation: 相位检测电路可以包括两个相位检测器，每个相位检测器响应于输入信号的相位对齐而生成非零输出。 输入信号基于两个周期性信号。 当周期信号同相时，相位检测电路从另一相位检测器的输出信号中减去一个相位检测器的输出信号，以产生具有零值的信号。 或者，相位检测器产生指示周期性信号之间的相位差的相位比较信号。 响应于相位检测器的输入信号被同相对准，相位比较信号具有非零值。 输入信号基于周期性信号。 输出电路接收相位比较信号并且响应于周期性信号的相位对准而产生具有零值的输出。

公开(公告)号：WO2013020105A2

公开(公告)日：2013-02-07

申请号：PCT/US2012/049633

申请日：2012-08-03

Applicant: RAMBUS INC. ,  WARE, Frederick, A. ,  ARYANFAR, Farshid ,  BROOKS, John, Welsford

Inventor： WARE, Frederick, A. ,  ARYANFAR, Farshid ,  BROOKS, John, Welsford

IPC: G01S1/02 ,  G01S5/02

CPC classification number: G01S13/84 ,  A63F13/216 ,  G01S5/0294 ,  G01S5/06 ,  G01S7/52004 ,  G01S13/878 ,  G01S2007/4091

Abstract: A method of tracking a second electronic device with respect to a first electronic device is disclosed. The method includes transmitting a first waveform of a first frequency along a first fixed path associated with the first device. A second waveform having a frequency based on the first frequency is wirelessly transmitted from the first device to the second device along a first wireless path. The second waveform is wirelessly transmitted from the second device to the first device along a second wireless path. The first and second waveforms are received at the phase comparator circuit. A first phase relationship of the received first waveform is then compared to a second phase relationship of the received re-transmitted waveform. A coordinate of the second device is determined with respect to a reference coordinate based on the comparing.

Abstract translation: 公开了一种相对于第一电子设备跟踪第二电子设备的方法。 该方法包括沿着与第一设备相关联的第一固定路径发送第一频率的第一波形。 具有基于第一频率的频率的第二波形沿着第一无线路径从第一设备无线地发送到第二设备。 第二波形沿着第二无线路径从第二设备无线发送到第一设备。 第一和第二波形在相位比较器电路处被接收。 然后将接收的第一波形的第一相位关系与所接收的重发波形的第二相位关系进行比较。 基于比较，相对于参考坐标确定第二装置的坐标。