公开(公告)号：US06421331B1

公开(公告)日：2002-07-16

申请号：US09302485

申请日：1999-04-30

Applicant: Anthony Peter Hulbert

Inventor： Anthony Peter Hulbert

IPC: H04J1300

CPC classification number: H04W52/146 ,  H04L1/0025 ,  H04L1/0027 ,  H04W52/267

Abstract: The method of operating an uplink of a CDMA mobile telecommunications system provides optimization of power control accuracy, or rate change responsiveness for at least one communications a channel. Rate information is provided which indicates (a) the rate of the current frame, or (b) which indicates the power of a subsequent frame. Selection between (a) and (b) is possible by transmitting global information to all terminals in a cell, or by instructing individual terminals by use of a bit within the rate information bits carried within each slot of a control channel.

Abstract translation: 操作CDMA移动电信系统的上行链路的方法提供对于信道的至少一个通信的功率控制精度或速率变化响应性的优化。 提供速率信息，其指示（a）当前帧的速率，或（b）指示后续帧的功率。 通过向小区中的所有终端发送全局信息，或者通过使用控制信道的每个时隙内携带的速率信息比特内的比特来指示各个终端，可以在（a）和（b）之间进行选择。

公开(公告)号：US08421460B2

公开(公告)日：2013-04-16

申请号：US12726741

申请日：2010-03-18

Applicant: Anthony Peter Hulbert

Inventor： Anthony Peter Hulbert

IPC: G01V3/00 ,  G01R33/20

CPC classification number: G01R33/3415 ,  G01R33/3621 ,  G01R33/3692 ,  H03F7/04

Abstract: An upconverter has a two port parametric amplifier that has a first port to receive an input signal to be amplified and upconverted and a second port to receive a local oscillator signal and to output the amplified, upconverted signal at upper and lower sideband frequencies. The upconverter further has an antenna coupled to the second port to receive the local oscillator signal and transmit the amplified, upconverted signal at upper and lower sideband frequencies and a low noise amplifier at the first port of the parametric amplifier, which is powered by the local oscillator signal.

Abstract translation: 上变频器具有双端口参数放大器，其具有接收要放大和上变频的输入信号的第一端口和用于接收本地振荡器信号的第二端口，并在上侧和下侧频带频率处输出经放大的上变频信号。 上变频器还具有耦合到第二端口的天线以接收本地振荡器信号并且在上侧和下侧边带频率处发送经放大的上变频信号，以及在参数放大器的第一端口处的低噪声放大器，其由本地 振荡器信号。

公开(公告)号：US08217656B2

公开(公告)日：2012-07-10

申请号：US12612856

申请日：2009-11-05

Applicant: Anthony Peter Hulbert

Inventor： Anthony Peter Hulbert

IPC: G01V3/00

CPC classification number: G01R33/56509 ,  G01R33/34046 ,  G01R33/3415 ,  G01R33/345 ,  G01R33/3692

Abstract: In a method of compensating for the effects of motion of an image subject during magnetic resonance imaging using phase encoding in a magnetic resonance imaging system having a number of wireless local coils and a wireless microwave transceiver array, one or more phase encoding steps are implemented to derive one or more magnetic resonance signals in the wireless coils. The signals from the phase encoding steps are upconverted to generate upper and lower sidebands of the magnetic resonance signals; and the upconverted upper and lower sideband signals are transmitted to the microwave array. Signals are derived from the upper and lower sidebands; and a representative phase difference between the signals derived from the upper and lower sidebands is determined from one or more of the phase encoding steps; then the representative phase difference is applied to each pair of derived signals for every phase encoding step to produce phase compensated signal pairs; such that the pair of signals are moved more closely into phase.

Abstract translation: 在使用具有多个无线本地线圈的磁共振成像系统和无线微波收发器阵列中的使用相位编码的磁共振成像期间补偿图像对象的运动的影响的方法中，一个或多个相位编码步骤被实现为 在无线线圈中导出一个或多个磁共振信号。 来自相位编码步骤的信号被上变频以产生磁共振信号的上边缘和下边缘; 并且上变频的上边带信号和下边带信号被传送到微波阵列。 信号来自上边带和下边带; 并且从一个或多个相位编码步骤确定从上边带和下边带导出的信号之间的代表性相位差; 那么对于每个相位编码步骤，代表性的相位差被应用于每对导出信号，以产生相位补偿的信号对; 使得该对信号更接近地移动到相位中。

公开(公告)号：US08030931B2

公开(公告)日：2011-10-04

申请号：US12613033

申请日：2009-11-05

Applicant: Anthony Peter Hulbert

Inventor： Anthony Peter Hulbert

IPC: G01V3/00 ,  G06K9/00

CPC classification number: G01R33/3692 ,  G01R33/3415 ,  G01R33/3621

Abstract: An upconversion stage for a wireless magnetic resonance imaging system local coil array has a number of upconversion circuits. Each upconversion circuit includes a parametric amplifier, an antenna and a delay line between the amplifier and the antenna. The path length of the delay line in one upconversion circuit differs from the path length of the delay line in an adjacent upconversion circuit by a predetermined amount.

Abstract translation: 无线磁共振成像系统局部线圈阵列的上转换阶段具有多个上变频电路。 每个上变频电路包括参数放大器，天线和放大器与天线之间的延迟线。 一个上变频电路中的延迟线的路径长度与相邻的上变频电路中的延迟线的路径长度相差预定量。

公开(公告)号：US20100253353A1

公开(公告)日：2010-10-07

申请号：US12753159

申请日：2010-04-02

Applicant: Peter Cork ,  Anthony Peter Hulbert

Inventor： Peter Cork ,  Anthony Peter Hulbert

IPC: G01R33/44

CPC classification number: G01R33/3692 ,  G01R33/3415 ,  H03F7/04

Abstract: A magnetic resonance imaging system upconverter stage has a number of local coils and a number of upconverters to receive a signal from an output of each coil. Each upconverter has a number of two port upconverter cores, each core having a first port to receive a signal from a local coil and a second port to output an upconverted signal at upper and lower sideband frequencies through an antenna coupled to the second port. The inputs of the plurality of upconverter cores are connected in parallel, and at least one antenna is associated with the second port of each core.

Abstract translation: 磁共振成像系统上变频器级具有多个局部线圈和多个上变频器，以从每个线圈的输出接收信号。 每个上变频器具有多个两端口上变频器内核，每个磁芯具有接收来自本地线圈的信号的第一端口和第二端口，以通过耦合到第二端口的天线在上和下边带频率处输出上变频信号。 多个上变频器核的输入并联连接，并且至少一个天线与每个核心的第二端口相关联。

公开(公告)号：US20100119138A1

公开(公告)日：2010-05-13

申请号：US12612856

申请日：2009-11-05

Applicant: Anthony Peter Hulbert

Inventor： Anthony Peter Hulbert

IPC: G06K9/00

CPC classification number: G01R33/56509 ,  G01R33/34046 ,  G01R33/3415 ,  G01R33/345 ,  G01R33/3692

Abstract: In a method of compensating for the effects of motion of an image subject during magnetic resonance imaging using phase encoding in a magnetic resonance imaging system having a number of wireless local coils and a wireless microwave transceiver array, one or more phase encoding steps are implemented to derive one or more magnetic resonance signals in the wireless coils. The signals from the phase encoding steps are upconverted to generate upper and lower sidebands of the magnetic resonance signals; and the upconverted upper and lower sideband signals are transmitted to the microwave array. Signals are derived from the upper and lower sidebands; and a representative phase difference between the signals derived from the upper and lower sidebands is determined from one or more of the phase encoding steps; then the representative phase difference is applied to each pair of derived signals for every phase encoding step to produce phase compensated signal pairs; such that the pair of signals are moved more closely into phase.

Abstract translation: 在使用具有多个无线本地线圈的磁共振成像系统和无线微波收发器阵列中的使用相位编码的磁共振成像期间补偿图像对象的运动的影响的方法中，一个或多个相位编码步骤被实现为 在无线线圈中导出一个或多个磁共振信号。 来自相位编码步骤的信号被上变频以产生磁共振信号的上边缘和下边缘; 并且上变频的上边带信号和下边带信号被传送到微波阵列。 信号来自上边带和下边带; 并且从一个或多个相位编码步骤确定从上边带和下边带导出的信号之间的代表性相位差; 那么对于每个相位编码步骤，代表性的相位差被应用于每对导出信号，以产生相位补偿的信号对; 使得该对信号更接近地移动到相位中。

公开(公告)号：US06330273B1

公开(公告)日：2001-12-11

申请号：US09155394

申请日：1999-08-23

Applicant: Anthony Peter Hulbert ,  David Peter Chandler

Inventor： Anthony Peter Hulbert ,  David Peter Chandler

IPC: A61F206

CPC classification number: H04B1/7085 ,  H04B1/709

Abstract: A direct sequence spread spectrum receiver includes correlators for handling prompt, late and early signals. An estimator is used to provide an estimate of the prompt signal and this used in a multiplication process with the late and early signals. The resultant signals are further processed to generate control signals.

Abstract translation: 直接序列扩频接收机包括用于处理提示，迟发和早期信号的相关器。 估计器用于提供对于晚期和早期信号的乘法过程中使用的提示信号的估计。 所得到的信号被进一步处理以产生控制信号。

公开(公告)号：US6069915A

公开(公告)日：2000-05-30

申请号：US895431

申请日：1997-07-16

Applicant: Anthony Peter Hulbert

Inventor： Anthony Peter Hulbert

IPC: H04B1/707 ,  A61F2/06 ,  H04L27/30

CPC classification number: H04B1/7075 ,  H04B1/70755 ,  H04B1/709 ,  H04B2201/7071

Abstract: A code acquisition circuit for acquiring code synchronization between an n-chip spreading code of a received spread spectrum radio signal and an n-chip local reference code generated by a code generator within a receiver, includes a variable delay means which operates to introduce a delay shift into the said received radio signal. A correlator operates to correlate n-chips of the local reference code with n-samples of the received signal communicated thereto, and generates a correlation signal representative of a result of the correlation. A code acquisition controller operates in combination with the correlation signal to maintain the delay shift for at least one correlation and thereafter to change the delay shift, wherein the delay shift is a fraction of one chip period.

Abstract translation: 一种用于获取接收的扩频无线电信号的n码片扩展码与由接收机内的码发生器产生的n码片本地参考码之间的码同步的码获取电路，包括：可变延迟装置，用于引入延迟 移入所述接收到的无线电信号。 相关器操作以将本地参考码的n码与所传送的接收信号的n样本相关，并产生表示相关结果的相关信号。 代码获取控制器与相关信号相结合地操作，以维持至少一个相关的延迟移位，此后改变延迟移位，其中延迟偏移是一个码片周期的一小部分。

公开(公告)号：US5920555A

公开(公告)日：1999-07-06

申请号：US843991

申请日：1997-04-17

Applicant: Anthony Peter Hulbert

Inventor： Anthony Peter Hulbert

IPC: H04B1/7085 ,  H04B1/709 ,  H04L27/227 ,  H04B1/707 ,  H04B7/216 ,  H04J13/04

CPC classification number: H04B1/7085 ,  H04L27/2278 ,  H04B1/709 ,  H04B2201/70701

Abstract: The invention relates to pilot assisted direct sequence spread spectrum links. Fine code synchronization generally requires either multiple receiver correlators (early/prompt/late) or jittered receiver correlators. The present invention removes the need for either by jittering the pilot code at the source so that the receiver only needs to examine a single code phase and can generate a fine code phase steering signal from the difference between the pilot energy measured when transmitted early and measured when transmitted late.

Abstract translation: 本发明涉及导频辅助直接序列扩频链路。 精细代码同步通常需要多个接收器相关器（早/提示/晚）或抖动的接收器相关器。 本发明消除了通过抖动源处的导频码来使得接收机仅需要检查单个码相位并且可以根据从早期传输时测量的导频能量和测量的导频能量之间的差异来生成精细码相位转向信号 传播迟到时

公开(公告)号：US5809062A

公开(公告)日：1998-09-15

申请号：US586759

申请日：1996-01-29

Applicant: Anthony Peter Hulbert

Inventor： Anthony Peter Hulbert

IPC: H04B1/707

CPC classification number: H04B1/707

Abstract: Coherent demodulation of phase shift keyed direct sequence spread spectrum generally needs a strong pilot to provide channel estimates and to avoid phase ambiguities. This invention relates to a novel approach in which the pilot takes the form a few known chips in every bit and in which the channel is estimated primarily by decision directed removal of the modulation and the pilot chips serve to resolve the 180 degree phase ambiguity.

Abstract translation: PCT No.PCT / GB95 / 01201 Sec。 371日期1996年1月29日 102（e）日期1996年1月29日PCT提交1995年5月25日PCT公布。 WO95 / 33311 PCT出版物 日期1995年12月7日相移键控直接序列扩频的相干解调通常需要强大的导频来提供信道估计并避免相位模糊。 本发明涉及一种新颖的方法，其中导频在每一比特中形成几个已知的码片，并且其中信道主要通过判决定向去除调制来估计，并且导频码片用于解决180度相位模糊度。