公开(公告)号：US20120106457A1

公开(公告)日：2012-05-03

申请号：US13346573

申请日：2012-01-09

申请人： Edward H. Frank ,  Brima B. Ibrahim

发明人： Edward H. Frank ,  Brima B. Ibrahim

IPC分类号： H04W92/00

CPC分类号： H04W88/02 ,  H04W16/14 ,  H04W28/14 ,  H04W88/04 ,  H04W88/06

摘要： A method and/or apparatus for cooperative transceiving between wireless interface devices of a host device includes processing that begins by providing an indication of receiving an inbound packet from one wireless interface device (e.g., Bluetooth compliant radio transceiver, IEEE 802.11 compliant radio transceiver, etc.) to another. The wireless interlace device receiving the indication processes the indication and, based on the processing, transmits an outbound packet in accordance with the processing of the indication. For example, the wireless interface device receiving the indication may delay transmission until the other wireless interface device has received the packet, or, if transmission of the packet would not interfere with the receiving of the packet by the other wireless interface device, the wireless interface device receiving the indication would transmit its packet.

摘要翻译： 用于主机设备的无线接口设备之间的协作收发的方法和/或设备包括通过提供从一个无线接口设备（例如，蓝牙兼容无线电收发器，符合IEEE 802.11的无线电收发信机等）接收入站分组的指示开始的处理 。）到另一个。 接收到指示的无线交错装置处理该指示，并且根据该处理，根据该指示的处理来发送出站分组。 例如，接收指示的无线接口装置可以延迟发送，直到另一无线接口装置已经接收到分组，或者如果分组的传输不会干扰另一无线接口装置对分组的接收，则无线接口 接收指示的设备将传送其分组。

公开(公告)号：US20120094594A1

公开(公告)日：2012-04-19

申请号：US13336724

申请日：2011-12-23

申请人： Ahmadreza (Reza) Rofougaran ,  Maryam Rofougaran ,  Brima B. Ibrahim ,  Hooman Darabi

发明人： Ahmadreza (Reza) Rofougaran ,  Maryam Rofougaran ,  Brima B. Ibrahim ,  Hooman Darabi

IPC分类号： H04W88/06 ,  H04B7/14

CPC分类号： H04B15/00 ,  G06F1/1626 ,  G06F1/1643 ,  G06F1/1698 ,  G06F3/017 ,  H04B7/15507

摘要： A portable computing device includes a radio frequency (RF) wired link, a core module, and a plurality of multi-mode RF units. When one or more of the multi-mode RF units are supporting a high-speed data communication, the core module is operable to detect a blocker that is adversely affecting the high-speed data communication. The core module is further operable to determine whether a radiation pattern alternative for the high-speed data communication will reduce the adverse affects on the high-speed data communication. When the radiation pattern alternative for the high-speed data communication will reduce the adverse affects on the high-speed data communication, the core module is further operable to enable the radiation pattern alternative. The one or more multi-mode RF units are operable to adjust at least one of transmission and reception of the high-speed data communication in accordance with the radiation pattern alternative.

摘要翻译： 便携式计算设备包括射频（RF）有线链路，核心模块和多个多模RF单元。 当一个或多个多模RF单元支持高速数据通信时，核心模块可操作以检测对高速数据通信有不利影响的阻塞器。 核心模块还可操作以确定用于高速数据通信的辐射模式替代方案是否将减少对高速数据通信的不利影响。 当用于高速数据通信的辐射模式替代方案将减少对高速数据通信的不利影响时，核心模块进一步可操作以使辐射模式可选。 所述一个或多个多模式RF单元可操作以根据所述辐射模式替代来调整所述高速数据通信的发送和接收中的至少一个。

公开(公告)号：US20120093039A1

公开(公告)日：2012-04-19

申请号：US13336325

申请日：2011-12-23

申请人： Ahmadreza (Reza) Rofougaran ,  Maryam Rofougaran ,  Brima B. Ibrahim ,  Hooman Darabi

发明人： Ahmadreza (Reza) Rofougaran ,  Maryam Rofougaran ,  Brima B. Ibrahim ,  Hooman Darabi

IPC分类号： H04W72/04 ,  H04L12/28 ,  H04B7/005 ,  H04W92/00 ,  H04L27/00 ,  H04J13/00

CPC分类号： H04J1/00 ,  H04J4/00 ,  H04L7/0008

摘要： A portable computing device includes a radio frequency (RF) wired link, a data wired link, a core module, a plurality of multi-mode RF units, and a plurality of data modules. The core module is operable to communicate control information with one or more of the plurality of multi-mode RF units in a first frequency band via the RF wired link. The core module is further operable to communicate data of a wireless communication with one or more of the plurality of multi-mode RF units in a second frequency band via the RF wired link. The core module is further operable to communicate clock information to the plurality of multi-mode RF units in a third frequency band via the RF wired link.

摘要翻译： 便携式计算设备包括射频（RF）有线链路，数据有线链路，核心模块，多个多模RF单元和多个数据模块。 核心模块可操作以经由RF有线链路在第一频带中与多个多模RF单元中的一个或多个通信控制信息。 核心模块还可操作以经由RF有线链路在第二频带中传送与多个多模RF单元中的一个或多个的无线通信的数据。 核心模块还可操作以经由RF有线链路将时钟信息传送到第三频带中的多个多模RF单元。

公开(公告)号：US08112053B2

公开(公告)日：2012-02-07

申请号：US11751848

申请日：2007-05-22

申请人： Prasanna Desai ,  Mark Gonikberg ,  Brima B. Ibrahim ,  Luis Gutierrez ,  Sreenivas Karanam ,  Thomas Varghese

发明人： Prasanna Desai ,  Mark Gonikberg ,  Brima B. Ibrahim ,  Luis Gutierrez ,  Sreenivas Karanam ,  Thomas Varghese

IPC分类号： H03G3/00 ,  H04B1/06

CPC分类号： H04B7/0874 ,  H04B7/0691

摘要： A wireless device includes at least one antenna, a plurality of shared signal path components coupled to the at least one antenna, the plurality of shared signal path components including a shared adjustable gain element, e.g., Low Noise Amplifier (LNA), Power Amplifier (PA), etc., a first wireless interface, e.g. Wireless Local Area Network interface coupled to the plurality of shared signal path components, and a second wireless interface, e.g., Wireless Personal Area Network interface, coupled to the plurality of shared signal path components. During a first operational period, the first wireless interface controls gain of the shared adjustable gain element and during a second operational period that differs from the first operational period, the second wireless network interface controls gain of the shared adjustable gain element. With another embodiment the first wireless interface and/or the second wireless interface each includes shared adjustable gain elements for transmit and receive diversity.

摘要翻译： 无线设备包括至少一个天线，耦合到所述至少一个天线的多个共享信号路径组件，所述多个共享信号路径分量包括共享可调增益元件，例如低噪声放大器（LNA），功率放大器 PA）等，第一无线接口，例如 耦合到多个共享信号路径部件的无线局域网接口，以及耦合到多个共享信号路径部件的第二无线接口，例如无线个域网接口。 在第一操作时段期间，第一无线接口控制共享可调增益元件的增益，并且在与第一操作周期不同的第二操作周期期间，第二无线网络接口控制共享可调增益元件的增益。 在另一实施例中，第一无线接口和/或第二无线接口各自包括用于发射和接收分集的共享可调增益元件。

公开(公告)号：US07685217B2

公开(公告)日：2010-03-23

申请号：US11189910

申请日：2005-07-26

申请人： Henrik T. Jensen ,  Brima B. Ibrahim

发明人： Henrik T. Jensen ,  Brima B. Ibrahim

IPC分类号： G06F17/10 ,  G06F17/17 ,  H03K9/00

CPC分类号： H04L27/38 ,  H03H17/0664 ,  H03H17/0671

摘要： A channel-select decimation filter capable of operating in multiple bandwidth modes includes a first low pass filter stage, a variable gain stage, a subtraction module a second low pass filter stage and a down-sampling module. The first low pass filter stage includes a first programmable delay module for filtering input signals to produce first low pass filtered signals. The variable gain stage applies a programmable gain to the input signals to produce gained input signals. The subtraction module subtracts the first low pass filtered signals from the gain input signals to produce first stage signals. The second low pass filter stage includes a second programmable delay module for filtering the first stage signals to produce channel-selected signals. The first programmable delay module, second programmable delay module and programmable gain are programmed to implement one of the multiple bandwidth modes.

摘要翻译： 能够在多个带宽模式下工作的频道选择抽取滤波器包括第一低通滤波器级，可变增益级，减法模块，第二低通滤波级和下采样模块。 第一低通滤波器级包括用于滤波输入信号以产生第一低通滤波信号的第一可编程延迟模块。 可变增益级将可编程增益应用于输入信号以产生增益的输入信号。 减法模块从增益输入信号中减去第一低通滤波信号，以产生第一级信号。 第二低通滤波器级包括用于对第一级信号进行滤波以产生通道选择信号的第二可编程延迟模块。 第一可编程延迟模块，第二可编程延迟模块和可编程增益被编程为实现多种带宽模式之一。

公开(公告)号：US20090278613A1

公开(公告)日：2009-11-12

申请号：US12506997

申请日：2009-07-21

申请人： Henrik T. Jensen ,  Brima B. Ibrahim

发明人： Henrik T. Jensen ,  Brima B. Ibrahim

IPC分类号： H03L7/00

CPC分类号： H03L7/1976 ,  H03C3/0925 ,  H03C3/0933 ,  H03C3/0941 ,  H03C3/095 ,  H03C3/0991 ,  H03L7/093

摘要： A polar transmitter includes a two-point modulation phase-locked loop (PLL) for producing an RF signal with a wide bandwidth. The PLL includes a first input for receiving a phase signal of a variable-envelope modulated signal and providing the phase signal along a first signal path to produce a first frequency modulation signal and a second input for receiving the phase signal and providing the phase signal along a second signal path to produce a second frequency modulation signal. The PLL further includes a voltage controlled oscillator (VCO) having two modulation points, one for receiving the first frequency modulation signal and the other for receiving the second frequency modulation signal. The VCO is controlled by an aggregate of the first frequency modulation signal and the second frequency modulation signal to up-convert the phase signal from an IF to an RF to produce the RF signal with a wide bandwidth.

摘要翻译： 极性发射机包括用于产生宽带宽的RF信号的两点调制锁相环（PLL）。 PLL包括用于接收可变包络调制信号的相位信号并沿着第一信号路径提供相位信号以产生第一频率调制信号的第一输入端和用于接收相位信号并提供相位信号的第二输入端 用于产生第二频率调制信号的第二信号路径。 PLL还包括具有两个调制点的压控振荡器（VCO），一个用于接收第一频率调制信号，另一个用于接收第二频率调制信号。 VCO由第一频率调制信号和第二频率调制信号的集合控制，以将来自IF的相位信号上变频到RF以产生具有宽带宽的RF信号。

公开(公告)号：US07580483B2

公开(公告)日：2009-08-25

申请号：US11516413

申请日：2006-09-05

申请人： Brima B. Ibrahim ,  Henrik T. Jensen

发明人： Brima B. Ibrahim ,  Henrik T. Jensen

IPC分类号： H04L27/14 ,  H04L27/16 ,  H04L27/22

CPC分类号： H04L25/061 ,  H04L25/063 ,  H04L27/0014 ,  H04L2027/003 ,  H04L2027/0053 ,  H04L2027/0065

摘要： A method and apparatus for trimming of a local oscillation within a radio frequency integrated circuit (RFIC) includes processing that begins when an RFIC receives a radio frequency (RF) signal having a known frequency. The processing then continues when the RFIC mixes the RF signal with a receiver local oscillation to produce a low intermediate frequency (IF) signal, which may have a carrier frequency of zero (i.e., a baseband signal) or up to a few mega Hertz). The processing then continues when the RFIC demodulates the low IF signal to produce demodulated data. The processing then continues as the RFIC determines a DC offset from the demodulated data, where the DC offset is reflective of the difference between the known frequency and the frequency of the receiver local oscillation. The processing then continues as the RFIC adjusts the receiver local oscillation to reduce the DC offset when the DC offset compares unfavorably with an allowable offset threshold.

摘要翻译： 一种在射频集成电路（RFIC）内修整本地振荡的方法和装置包括当RFIC接收具有已知频率的射频（RF）信号时开始的处理。 然后，当RFIC将RF信号与接收机本地振荡混合以产生可能具有零载波频率（即，基带信号）或高达几兆赫兹的低中频（IF）信号时，处理继续进行。 。 然后，当RFIC解调低IF信号以产生解调数据时，处理继续。 然后，处理继续，因为RFIC从解调数据确定DC偏移，其中DC偏移反映了已知频率和接收机本地振荡的频率之间的差异。 然后，随着RFIC调整接收机本地振荡，当DC偏移与允许的偏移阈值不利地相比较时，该处理继续减小直流偏移。

公开(公告)号：US20080279138A1

公开(公告)日：2008-11-13

申请号：US11801534

申请日：2007-05-10

申请人： Mark Gonikberg ,  Prasanna Desai ,  Brima B. Ibrahim

发明人： Mark Gonikberg ,  Prasanna Desai ,  Brima B. Ibrahim

IPC分类号： H04Q7/00

CPC分类号： H04W88/06 ,  H04W8/005 ,  H04W76/20 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/23

摘要： An circuit includes a first wireless interface circuit that transceives packetized data between a host module and a first external device in accordance with a first wireless communication protocol. A second wireless interface circuit transceives packetized data between the host module and a second external device in accordance with a second wireless communication protocol. The second wireless interface circuit includes at least one module that is shared with first wireless interface circuit, the module having a first state where the module is operational and a second state corresponding to a low-power state. The first wireless interface circuit and the second wireless interface circuit operate in accordance with a wireless interface schedule that includes a first time interval where the first wireless interface device and the second wireless interface device contemporaneously use the at least one module in the first state and a second time interval where the at least one module is in the second state.

摘要翻译： 电路包括：第一无线接口电路，其根据第一无线通信协议在主机模块和第一外部设备之间收发分组数据。 第二无线接口电路根据第二无线通信协议在主机模块和第二外部设备之间收发分组数据。 第二无线接口电路包括与第一无线接口电路共享的至少一个模块，该模块具有模块运行的第一状态和对应于低功率状态的第二状态。 第一无线接口电路和第二无线接口电路根据包括第一时间间隔的无线接口调度进行操作，其中第一无线接口设备和第二无线接口设备同时使用处于第一状态的至少一个模块，以及 所述至少一个模块处于所述第二状态的第二时间间隔。

公开(公告)号：US20080007346A1

公开(公告)日：2008-01-10

申请号：US11471147

申请日：2006-06-20

申请人： Henrik T. Jensen ,  Brima B. Ibrahim

发明人： Henrik T. Jensen ,  Brima B. Ibrahim

IPC分类号： H03L7/00

CPC分类号： H03L7/1976 ,  H03C3/0925 ,  H03C3/0933 ,  H03C3/0941 ,  H03C3/095 ,  H03C3/0991 ,  H03L7/093

摘要： A polar transmitter includes a two-point modulation phase-locked loop (PLL) for producing an RF signal with a wide bandwidth. The PLL includes a first input for receiving a phase signal of a variable-envelope modulated signal and providing the phase signal along a first signal path to produce a first frequency modulation signal and a second input for receiving the phase signal and providing the phase signal along a second signal path to produce a second frequency modulation signal. The PLL further includes a voltage controlled oscillator (VCO) having two modulation points, one for receiving the first frequency modulation signal and the other for receiving the second frequency modulation signal. The VCO is controlled by an aggregate of the first frequency modulation signal and the second frequency modulation signal to up-convert the phase signal from an IF to an RF to produce the RF signal with a wide bandwidth.

摘要翻译： 极性发射机包括用于产生宽带宽的RF信号的两点调制锁相环（PLL）。 PLL包括用于接收可变包络调制信号的相位信号并沿着第一信号路径提供相位信号以产生第一频率调制信号的第一输入端和用于接收相位信号并提供相位信号的第二输入端 用于产生第二频率调制信号的第二信号路径。 PLL还包括具有两个调制点的压控振荡器（VCO），一个用于接收第一频率调制信号，另一个用于接收第二频率调制信号。 VCO由第一频率调制信号和第二频率调制信号的集合控制，以将来自IF的相位信号上变频到RF以产生具有宽带宽的RF信号。

公开(公告)号：US06914437B2

公开(公告)日：2005-07-05

申请号：US10645130

申请日：2003-08-21

申请人： Brima B. Ibrahim ,  Hea Joung Kim

发明人： Brima B. Ibrahim ,  Hea Joung Kim

IPC分类号： G01R27/28 ,  H03H7/01 ,  H03H11/12

CPC分类号： H03H7/0153 ,  H03H11/1291

摘要： A method for calibrating a filter begins with the filter filtering a first signal having a first frequency to produce a first filtered signal, wherein the first frequency is in a known pass region of the filter. The processing continues by measuring signal strength of the first filtered signal to produce a first measured signal strength. The processing continues with the filter filtering a second signal having a second frequency to produce a second filtered signal, wherein the second frequency is at a desired corner frequency of the filter. The processing continues by measuring signal strength of the second filtered signal to produce a second measured signal strength. The processing continues by comparing the first measured signal strength with the second measured signal strength to determine whether the filter has attenuated the second signal by a desired attenuation value with respect to the first signal. The processing continues by adjusting filter response of the filter to produce an adjusted filter response when the filter has not attenuated the second signal by the desired attenuation value with respect to the first signal.

摘要翻译： 用于校准滤波器的方法开始于对具有第一频率的第一信号进行滤波以产生第一滤波信号，其中第一频率在滤波器的已知通过区域中。 通过测量第一滤波信号的信号强度以产生第一测量信号强度，继续处理。 处理继续，滤波器对具有第二频率的第二信号进行滤波以产生第二滤波信号，其中第二频率处于滤波器的期望转角频率。 该处理通过测量第二滤波信号的信号强度继续，以产生第二测量信号强度。 该处理通过将第一测量信号强度与第二测量信号强度进行比较来确定滤波器是否已经相对于第一信号衰减了所需的衰减值来衰减第二信号。 当滤波器没有相对于第一信号衰减所需的衰减值时，滤波器的滤波器响应通过调节滤波器的滤波器响应来产生调整的滤波器响应，从而继续该处理。