公开(公告)号：US08073080B2

公开(公告)日：2011-12-06

申请号：US11618720

申请日：2006-12-29

申请人： Qiang Li ,  Razieh Roufoogaran ,  Keith Carter ,  Arya Behzad

发明人： Qiang Li ,  Razieh Roufoogaran ,  Keith Carter ,  Arya Behzad

IPC分类号： H03D3/00 ,  H04L27/22

CPC分类号： H03D3/009

摘要： Certain aspects of a method and system for RC-CR quadrature generation with wideband coverage and process compensation may include determining an amplitude mismatch between an in-phase (I) component and a quadrature (Q) component of a signal generated in a radio frequency (RF) transmitter or receiver. A variation in resistance of a quadrature network associated with the I component and Q component may be determined. The determined amplitude mismatch and the determined variation in the resistance of the quadrature network may be compensated by adjusting a resistance of a portion of the quadrature network associated with the I component and a resistance of a portion of the quadrature network associated with the Q component.

摘要翻译： 用于具有宽带覆盖和过程补偿的RC-CR正交生成的方法和系统的某些方面可以包括确定在射频中产生的信号的同相（I）分量和正交（Q）分量之间的幅度失配（ RF）发射机或接收机。 可以确定与I分量和Q分量相关联的正交网络的电阻变化。 确定的幅度失配和确定的正交网络的电阻的变化可以通过调整与I分量相关联的正交网络的一部分的电阻和与Q分量相关联的正交网络的一部分的电阻来补偿。

公开(公告)号：US20080137785A1

公开(公告)日：2008-06-12

申请号：US11618720

申请日：2006-12-29

申请人： Qiang Li ,  Razieh Roufoogaran ,  Keith Carter ,  Arya Behzad

发明人： Qiang Li ,  Razieh Roufoogaran ,  Keith Carter ,  Arya Behzad

IPC分类号： H03D1/04

CPC分类号： H03D3/009

摘要： Certain aspects of a method and system for RC-CR quadrature generation with wideband coverage and process compensation may include determining an amplitude mismatch between an in-phase (I) component and a quadrature (Q) component of a signal generated in a radio frequency (RF) transmitter or receiver. A variation in resistance of a quadrature network associated with the I component and Q component may be determined. The determined amplitude mismatch and the determined variation in the resistance of the quadrature network may be compensated by adjusting a resistance of a portion of the quadrature network associated with the I component and a resistance of a portion of the quadrature network associated with the Q component.

摘要翻译： 用于具有宽带覆盖和过程补偿的RC-CR正交生成的方法和系统的某些方面可以包括确定在射频中产生的信号的同相（I）分量和正交（Q）分量之间的幅度失配（ RF）发射机或接收机。 可以确定与I分量和Q分量相关联的正交网络的电阻变化。 确定的幅度失配和确定的正交网络的电阻的变化可以通过调整与I分量相关联的正交网络的一部分的电阻和与Q分量相关联的正交网络的一部分的电阻来补偿。

公开(公告)号：US20070173286A1

公开(公告)日：2007-07-26

申请号：US11703421

申请日：2007-02-06

申请人： Keith Carter ,  Arya Behzad

发明人： Keith Carter ,  Arya Behzad

IPC分类号： H04B1/44 ,  H04M1/00

CPC分类号： H04B1/0082 ,  H04M2250/02 ,  H04M2250/06 ,  H04W88/00

摘要： A Radio Frequency (RF) transceiver Integrated Circuit (IC) includes a plurality -of RF transceivers, local oscillation generation circuitry that produces a local oscillation, and local oscillation distribution circuitry. The local oscillation distribution circuitry couples to the local oscillation generation circuitry and includes a plurality of local oscillation repeater circuits. Each local oscillation repeater circuit corresponds to a respective one of the plurality of RF transceivers (transmitter, receiver, or both) Each local oscillation repeater circuit includes a local oscillation repeater circuit input, a local oscillation repeater circuit interface driver output coupled to respective one of the plurality of RF transceivers, and a local oscillation repeater circuit output. Each local oscillation repeater circuit also includes a first driver having as an input the local oscillation repeater circuit input and as an output the local oscillator repeater circuit output and a second driver having as an input the local oscillation repeater circuit input and as an output the local oscillation repeater circuit interface driver output.

摘要翻译： 射频（RF）收发器集成电路（IC）包括多个RF收发器，产生本地振荡的本地振荡发生电路和本地振荡分配电路。 本地振荡分配电路耦合到本地振荡发生电路并且包括多个本地振荡中继器电路。 每个本地振荡中继器电路对应于多个RF收发器（发射机，接收机或两者）中的相应一个。每个本地振荡中继器电路包括本地振荡中继器电路输入，本地振荡中继器电路接口驱动器输出耦合到相应的一个 多个RF收发器和本地振荡中继器电路输出。 每个本地振荡中继器电路还包括第一驱动器，其具有作为本地振荡中继器电路输入的输入和作为本地振荡器中继器电路输出的输出，以及具有作为本地振荡中继器电路输入的输入的第二驱动器和作为输出的本地振荡器 振荡中继器电路接口驱动器输出。

公开(公告)号：US20050266820A1

公开(公告)日：2005-12-01

申请号：US10923958

申请日：2004-08-23

申请人： Arya Behzad ,  Keith Carter

发明人： Arya Behzad ,  Keith Carter

IPC分类号： H04B1/10 ,  H04B1/30 ,  H04Q7/20

CPC分类号： H04B1/30

摘要： A current mirror with selectable filter poles provides a selected low pass filtering function to a DC bias signal generated by the current mirror. Coupled between a first MOSFET and second MOSFET of the current mirror, a low pass filter with selectable filter poles comprises a plurality of resistor-configured MOSFETs coupled to at least one capacitor-configured MOSFET to provide one of a fast settle time and improved filtering for the current mirror in one embodiment of the invention. A first resistor-configured MOSFETs, biased by logic and bias circuitry, provides a low frequency filter pole that provides an improved filtering for the current mirror. A second resistor-configured MOSFET provides a high frequency filter pole that provides a fast charge time to meet a settle time requirement.

摘要翻译： 具有可选滤波极的电流镜为由电流镜产生的直流偏置信号提供选定的低通滤波功能。 耦合在电流镜的第一MOSFET和第二MOSFET之间，具有可选滤波器极的低通滤波器包括耦合到至少一个电容器配置的MOSFET的多个电阻器配置的MOSFET，以提供快速稳定时间和改进的滤波 在本发明的一个实施例中的电流镜。 由逻辑和偏置电路偏置的第一个电阻器配置的MOSFET提供了一个低频滤波器极，为电流镜提供了改进的滤波。 第二个电阻器配置的MOSFET提供了一个高频滤波器极点，可以提供快速充电时间，以满足稳定时间要求。

公开(公告)号：US20110000739A1

公开(公告)日：2011-01-06

申请号：US12497628

申请日：2009-07-03

申请人： Keith Carter ,  William Basore

发明人： Keith Carter ,  William Basore

IPC分类号： H04R1/02 ,  A47B81/06

CPC分类号： H04R1/02

摘要： A speaker box, or enclosure, and kit with five panels connected by flexible couplings is shipped in a stack of four of the five panels, plus two side panels. The flexible couplings may be provided by a single sheet of fabric coupled to the five panels. When the kit is assembled into a speaker box, the five coupled panels circumferentially engage the two side panels, which are shaped as isosceles trapezoids. One side of the assembled speaker box includes two coupled panels, of the five coupled panels, joined with a flat rabbet joint. The assembled speaker box is held together with bundle ties, adhesive, or preferably, both. Openings for a speaker and a connector cup are provided. The kit includes adhesive, instructions, bundle ties with bundle tie locks, a connector cup, and hardware.

摘要翻译： 扬声器盒或外壳以及通过挠性联轴器连接的五个面板的套件在五个面板中的四个面板中加上两个侧面面板。 柔性联轴器可以由耦合到五个面板的单个织物片提供。 当套件组装到扬声器箱中时，五个耦合板周向接合两个侧板，其形状为等腰梯形。 组装的扬声器箱的一侧包括两个耦合的面板，五个耦合板与平坦的拉头接头连接。 组装的扬声器盒与捆绑束，粘合剂或优选地两者保持在一起。 提供扬声器和连接杯的开口。 套件包括粘合剂，说明书，捆扎束带，连接杯和硬件。

公开(公告)号：US20110127392A1

公开(公告)日：2011-06-02

申请号：US12629825

申请日：2009-12-02

申请人： Keith Carter

发明人： Keith Carter

IPC分类号： F16M11/04 ,  F16M11/38

CPC分类号： F16M11/38 ,  B60R11/02 ,  B60R2011/0005 ,  B60R2011/0052 ,  B60R2011/0063 ,  B60R2011/0073 ,  B60R2011/0075 ,  B60R2011/0078 ,  B60R2011/0082 ,  B60R2011/0087 ,  F16M11/041 ,  F16M11/10 ,  F16M11/2064 ,  F16M13/00 ,  Y10S248/917 ,  Y10S248/923 ,  Y10T16/5472

摘要： A collapsible and adjustable electronics support with a releasably lockable rotatable base having a link with adjustable drag hinges connecting the releasably lockable rotatable base to a receiver for a polygonal support adapter. One or two tools for adjusting the drag hinges are included with first and second releasably snap-fit covers for respective first and second link sides of the link. The covers also cover the adjustable device in the drag hinge ends. The releasably lockable rotatable base is a four-part base with an adhesive part, a flexible and resilient panel supporting an axle, a first rigid panel rotationally fixed relative to the flexible and resilient panel, and a second rigid panel that rotates relative to the first rigid panel. The low profile in a collapsed configuration avoids rubbing the environmental surface to which it is attached. Wire management guides are provided on the receiver.

摘要翻译： 具有可释放地可锁定的可旋转底座的可折叠和可调节的电子支架，其具有连接可调节牵引铰链的连杆，所述连杆将可释放地锁定的可旋转底座连接到用于多边形支撑适配器的接收器。 用于调节牵引铰链的一个或两个工具包括用于连杆的相应第一和第二连杆侧的第一和第二可释放地卡扣配合盖。 盖子还覆盖了牵引铰链端部的可调节装置。 可释放地锁定的可旋转底座是具有粘合部分的四部分底座，支撑轴的柔性和弹性面板，相对于柔性和弹性面板旋转地固定的第一刚性面板，以及相对于第一 刚性面板。 在折叠构型中的低轮廓避免摩擦其所附着的环境表面。 电线管理指南在接收机上提供。

公开(公告)号：US20080100526A1

公开(公告)日：2008-05-01

申请号：US11968388

申请日：2008-01-02

申请人： Jesus Castaneda ,  Ahmadreza (Reza) Rofougaran ,  Keith Carter

发明人： Jesus Castaneda ,  Ahmadreza (Reza) Rofougaran ,  Keith Carter

IPC分类号： H01Q1/50

CPC分类号： H04B1/18 ,  H01Q1/242 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2203/45306 ,  H03F2203/45318 ,  H04B1/38

摘要： A Radio Frequency (RF) structure services an antenna having a characteristic impedance and includes a differential Power Amplifier (PA), a differential Low Noise Amplifier (LNA), and a balun transformer. The differential PA has a differential PA output with a PA differential output impedance. The differential LNA has a differential LNA input with an LNA differential input impedance. The balun transformer has a singled ended winding coupled to the antenna, a differential winding having a first pair of tap connections coupled to the differential PA output and a second pair of tap connections coupled to the differential LNA input, and a turns ratio of the single ended winding and the differential winding. The turns ratio and the first pair of tap connections impedance match the PA differential output impedance to the characteristic impedance of the antenna. The turns ratio and the second pair of tap connections impedance match the LNA differential input impedance to the characteristic impedance of the antenna.

摘要翻译： 射频（RF）结构为具有特征阻抗的天线提供服务，并且包括差分功率放大器（PA），差分低噪声放大器（LNA）和平衡 - 不平衡变压器。 差分PA具有PA差分输出阻抗的差分PA输出。 差分LNA具有LNA差分输入阻抗的差分LNA输入。 平衡 - 不平衡转换器具有耦合到天线的单端端绕组，具有耦合到差分PA输出的第一对抽头连接和耦合到差分LNA输入的第二对抽头连接的差分绕组和单个 端绕组和差动绕组。 匝数比和第一对抽头连接阻抗与PA差分输出阻抗匹配到天线的特性阻抗。 匝数比和第二对抽头连接阻抗与LNA差分输入阻抗匹配到天线的特性阻抗。

公开(公告)号：USD682725S1

公开(公告)日：2013-05-21

申请号：US29420267

申请日：2012-05-07

申请人： Nicole Reeder ,  Keith Carter

设计人： Nicole Reeder ,  Keith Carter

公开(公告)号：US20110000740A1

公开(公告)日：2011-01-06

申请号：US12621865

申请日：2009-11-19

申请人： Keith Carter

发明人： Keith Carter

IPC分类号： A47B81/06

CPC分类号： H04R1/02

摘要： A speaker enclosure, or enclosure, and kit with plural linearly aligned panels connected by flexible couplings are shipped in a parallel stack with all the coupled panels still coupled during shipment, plus additional panels, also stacked parallel. The flexible couplings may be provided by a single sheet of flexible substrate coupled to the linearly aligned panels. One side of the assembled speaker enclosure includes a middle panel of the coupled panels, having at least one flat rabbet joint. The external length of the middle panel is long enough to permit folding of at least one of the outermost of the panels, with flexible substrate and a covering, under the middle panel. The assembled speaker enclosure is held together with a flexible substrate, adhesive, clamps, or preferably, any two thereof. Openings for speakers and connector cups are provided. The kit includes adhesive, instructions, at least one connector cup, and hardware.

摘要翻译： 扬声器外壳或外壳以及通过柔性联轴器连接的多个线性对齐面板的套件以并行堆叠的形式运输，所有耦合的面板在装运期间仍然耦合，并且还附加面板并行堆叠。 柔性联接器可以由耦合到线性对准面板的单片柔性基板提供。 组装的扬声器外壳的一侧包括耦合面板的中间面板，具有至少一个平坦的拉头接头。 中间面板的外部长度足够长，以允许在中间面板下方折叠面板的最外面的至少一个，柔性基底和覆盖物。 组装的扬声器外壳与柔性基板，粘合剂，夹具或优选地其任何两个保持在一起。 提供扬声器和连接杯的开口。 套件包括粘合剂，说明书，至少一个连接杯和硬件。

公开(公告)号：US20070089772A1

公开(公告)日：2007-04-26

申请号：US11259504

申请日：2005-10-26

申请人： Keith Carter

发明人： Keith Carter

IPC分类号： E04H15/62

CPC分类号： E04H15/62

摘要： A stake cover has been designed that consists of fabric that fits over the stake, with a slitted side opening that permits the rope to be secured to the stake while the covering is in place, and one or more VELCRO™ type fasteners to secure the stake covering to the stake without interference from the rope. In one embodiment, the stake covering is made of a reflective or fluorescent material, or incorporates a reflector, battery operated lights or flag(s) to further increase visibility. In another embodiment, the stake covering includes padding to further prevent injury in the event an individual trips over the covering. In one embodiment, the stake covering is formed of a waterproof, lightweight material that flattens for easy storage. A padded extender may also be used with the padded stake cover.

摘要翻译： 已经设计了一个桩盖，其中包括配合在桩上的织物，其具有允许在覆盖物就位的情况下将绳索固定到桩上的开口侧开口，以及一个或多个VELCRO TM类型的紧固件来固定 该桩的利益不受绳索的干扰。 在一个实施例中，该覆盖物由反射或荧光材料制成，或者包括反射器，电池操作的灯或标志以进一步提高可视性。 在另一个实施例中，该桩覆盖物包括填充物以进一步防止在个体跳过覆盖物的情况下的损伤。 在一个实施例中，该桩盖由防水，轻质材料形成，其平坦化以便于储存。 填充的填充物也可以与填充的桩盖一起使用。