公开(公告)号：US20100009632A1

公开(公告)日：2010-01-14

申请号：US12502793

申请日：2009-07-14

申请人： Brima Ibrahim ,  Raymond Hayes ,  Jeyhan Karaoguz ,  John Walley ,  Saishankar Nandagopalan ,  Robert Hulvey ,  Shawn Ding ,  Christopher Hansen

发明人： Brima Ibrahim ,  Raymond Hayes ,  Jeyhan Karaoguz ,  John Walley ,  Saishankar Nandagopalan ,  Robert Hulvey ,  Shawn Ding ,  Christopher Hansen

IPC分类号： H04B7/00

CPC分类号： H04W52/267 ,  H04W52/16 ,  H04W52/242

摘要： Aspects of a method and system for Bluetooth 802.11 alternate MAC/PHY (AMP) transmit power control (TPC) may include one or more processors, receiver circuits and/or transmitter circuits that are operable to determine a maximum input level based on signals received via a Bluetooth basic rate (BR) connection and/or via a Bluetooth extended data rate (EDR) connection. The processors and/or circuits may be operable to determine a transmitted signal power level based on the determined maximum input level. The processors and/or circuits may be operable to transmit subsequent signals via a distinct Bluetooth connection based on the determined transmitted signal power level. The data rate for signal transmission via the distinct Bluetooth connection may exceed the data rate for signal transmission via the BR connection and the data rate for signal transmission via the EDR connection.

摘要翻译： 用于蓝牙802.11备用MAC / PHY（AMP）发射功率控制（TPC）的方法和系统的方面可以包括一个或多个处理器，接收机电路和/或发射机电路，其可操作以基于接收的信号确定最大输入电平 蓝牙基本速率（BR）连接和/或通过蓝牙扩展数据速率（EDR）连接。 处理器和/或电路可以用于基于所确定的最大输入电平来确定发射信号功率电平。 处理器和/或电路可以用于基于所确定的发射信号功率电平经由不同的蓝牙连接发送后续信号。 通过不同的蓝牙连接进行信号传输的数据速率可能会超过通过BR连接进行信号传输的数据速率和通过EDR连接进行信号传输的数据速率。

公开(公告)号：US07486748B2

公开(公告)日：2009-02-03

申请号：US11135854

申请日：2005-05-24

申请人： Siukai Mak ,  Brima Ibrahim

发明人： Siukai Mak ,  Brima Ibrahim

IPC分类号： H04L27/16

CPC分类号： H04L43/00 ,  H04L43/0847 ,  H04L43/16 ,  H04W28/18

摘要： Various aspects of a method and system from signal quality measurement based on mean phase error magnitude of a signal are presented. Aspects of the system may comprise circuitry that receives a time phase corrected Bluetooth signal via an RF channel. The circuitry may generate a phase error signal based on the received time phase corrected Bluetooth signal, and generate a mean phase error signal based on the generated phase error signal. A signal to noise ratio (SNR) may be derived based on the generated mean phase error signal, and a data rate may be selected based on the derived SNR.

摘要翻译： 提出了基于信号平均相位误差幅度的信号质量测量方法和系统的各个方面。 系统的方面可以包括经由RF信道接收经时间相位校正的蓝牙信号的电路。 电路可以基于所接收的时间相位校正的蓝牙信号产生相位误差信号，并且基于所生成的相位误差信号产生平均相位误差信号。 可以基于所生成的平均相位误差信号导出信噪比（SNR），并且可以基于导出的SNR来选择数据速率。

公开(公告)号：US20090022208A1

公开(公告)日：2009-01-22

申请号：US12017135

申请日：2008-01-21

申请人： Steven Deane Hall ,  Brima Ibrahim ,  Hea Joung Kim ,  Yuan Zhuang ,  Langford Wasada ,  Bojko Marholev ,  Shawn Ding ,  Latha Caliaperoumal ,  Satya Prasad Srinivas

发明人： Steven Deane Hall ,  Brima Ibrahim ,  Hea Joung Kim ,  Yuan Zhuang ,  Langford Wasada ,  Bojko Marholev ,  Shawn Ding ,  Latha Caliaperoumal ,  Satya Prasad Srinivas

IPC分类号： H04B1/00

CPC分类号： H04B1/034

摘要： Methods and systems for wireless communication are disclosed and may include sweeping a signal detection frequency one or more times across a plurality of steps in a frequency range. The measured signal strength at each step may be compared to a threshold, and a status may be stored, which may depend on the presence of a measured signal strength above threshold. The detection frequency may be swept utilizing a voltage controlled oscillator, which may be tuned via a control voltage and/or calibration capacitors. Steps may be skipped when a measured signal strength may be greater than the threshold, and may occur after multiple above threshold measurements. The steps may have variable frequency width, and the range may include the Bluetooth band from 2.40 GHz to 2.48 GHz. The frequency may be swept over a subset of the Bluetooth band, and may be swept on a periodic basis.

摘要翻译： 公开了用于无线通信的方法和系统，并且可以包括在频率范围内的多个步骤中扫描信号检测频率一次或多次。 可以将每个步骤处的测量信号强度与阈值进行比较，并且可以存储状态，其可以取决于高于阈值的测量信号强度的存在。 可以利用压控振荡器来扫描检测频率，该压控振荡器可以经由控制电压和/或校准电容器进行调谐。 当测量的信号强度可能大于阈值时，可以跳过步骤，并且可以在多次超过阈值测量之后发生。 这些步骤可以具有可变的频率宽度，并且该范围可以包括从2.40GHz到2.48GHz的蓝牙频带。 频率可以扫过蓝牙频带的子集，并且可以周期性地扫描。

公开(公告)号：US20080233875A1

公开(公告)日：2008-09-25

申请号：US11845481

申请日：2007-08-27

申请人： Prasanna Desai ,  Steven Deane Hall ,  Brima Ibrahim

发明人： Prasanna Desai ,  Steven Deane Hall ,  Brima Ibrahim

IPC分类号： H04B7/00 ,  H04Q7/24

CPC分类号： H04W16/14 ,  H04W88/06

摘要： Methods and systems for collaborative coexistence of Bluetooth and WiMax are disclosed. Aspects of one method may include a packet traffic arbiter (PTA) in a mobile terminal that arbitrates among requests to transmit from one or more communication devices collocated in the mobile terminal. The communication devices may comprise, for example, a WLAN communication device, a WiMax communication device, and/or a Bluetooth communication device. The arbitration may be based on, for example, whether a packet will be received by one of the plurality of collocated communication devices at a time of transmission of the present data packet and/or a priority for data to be transmitted. An exemplary scenario may be where a Bluetooth headset may be used for communication over a WiMax voice connection. One arbitration method may comprise allowing the WiMax packet to be transmitted, and replacing the received Bluetooth packet with data indicating silence. Another method may comprise not allowing transmission of the present WiMax packet. Rather, the present WiMax packet and a subsequent WiMax packet may e transmitted at the next transmission period.

摘要翻译： 披露了蓝牙和WiMax协同共存的方法和系统。 一种方法的方面可以包括移动终端中的分组业务仲裁器（PTA），其在从移动终端中并置的一个或多个通信设备发送的请求中进行仲裁。 通信设备可以包括例如WLAN通信设备，WiMax通信设备和/或蓝牙通信设备。 仲裁可以基于例如在传输本数据分组时是否由多个并置通信设备之一接收分组和/或要发送的数据的优先级。 示例性场景可以是其中可以使用蓝牙耳机通过WiMax语音连接进行通信。 一种仲裁方法可以包括允许发送WiMax分组，并且用指示静默的数据替换接收到的蓝牙分组。 另一种方法可以包括不允许传输本WiMax分组。 相反，可以在下一个传输周期发送当前的WiMax分组和随后的WiMax分组。

公开(公告)号：US20080219323A1

公开(公告)日：2008-09-11

申请号：US11682052

申请日：2007-03-05

申请人： Prasanna Desai ,  Sven Jerlhagen ,  Brima Ibrahim ,  Siukai Mak ,  Asif Grushkevich ,  John Walley

发明人： Prasanna Desai ,  Sven Jerlhagen ,  Brima Ibrahim ,  Siukai Mak ,  Asif Grushkevich ,  John Walley

IPC分类号： H04B1/713

CPC分类号： H04B1/715 ,  H04B2001/7154 ,  H04W28/04 ,  H04W84/18

摘要： Aspects of a method and system for fast and reliable channel classification in Bluetooth networks to detect and avoid channel interferers may include one or more processors that may enable performance of signal strength measurements on received Bluetooth signals at a current selected frequency. At least one data packet received via the Bluetooth signals may be processed to determine the presence of bit errors. The processor(s) may enable characterization of the Bluetooth signals at the current selected frequency based on the signal strength measurements and/or the processing of the data packets. The current selected frequency may be selected during adaptive frequency hopping based on the characterization.

摘要翻译： 用于在蓝牙网络中快速可靠的信道分类以检测和避免信道干扰的方法和系统的方面可以包括一个或多个处理器，其可以使得能够以当前选择的频率对所接收的蓝牙信号执行信号强度测量。 可以处理经由蓝牙信号接收的至少一个数据分组以确定位错误的存在。 处理器可以基于信号强度测量和/或数据分组的处理来启用当前所选频率的蓝牙信号的表征。 可以在基于表征的自适应跳频期间选择当前选择的频率。

公开(公告)号：US07349680B2

公开(公告)日：2008-03-25

申请号：US11101961

申请日：2005-04-08

申请人： Brima Ibrahim ,  Hea Joung Kim ,  Henrik Tholstrup Jensen ,  Siukai Mak

发明人： Brima Ibrahim ,  Hea Joung Kim ,  Henrik Tholstrup Jensen ,  Siukai Mak

IPC分类号： H04B1/26

CPC分类号： H04L25/063 ,  H04L27/22 ,  H04L2027/003 ,  H04L2027/0057 ,  H04L2027/0095

摘要： In RF transceivers, a method and system for using phase shift key (PSK) sync word for fine tuning frequency adjustment are provided. One aspect of the invention provides for adjusting a local oscillator frequency in a radio frequency (RF) receiver when a residual DC offset remains after a coarse frequency offset adjustment if performed. The fine adjustment may be necessary because of the synchronization required with a PSK-based modulated portion of a Bluetooth packet. A residual phase shift detected in a sync sequence portion of the Bluetooth packet may be utilized to determine a residual or fine frequency adjustment. This approach may allow an RF receiver to operate, in some instances, without the need for an equalizer. In this regard, the power consumed by the RF receiver may be minimized and/or the overall cost of the RF receiver may be reduced.

摘要翻译： 在RF收发器中，提供了一种使用相移键（PSK）同步字进行微调频率调整的方法和系统。 本发明的一个方面提供了当在执行粗频率偏移调整之后剩余DC偏移保留时，调整射频（RF）接收机中的本地振荡器频率。 由于蓝牙分组的基于PSK的调制部分所需的同步，因此可能需要进行微调。 在蓝牙分组的同步序列部分中检测到的残余相移可用于确定残差或精细频率调整。 这种方法可以允许RF接收机在某些情况下操作，而不需要均衡器。 在这方面，RF接收机消耗的功率可以被最小化，和/或可以降低RF接收机的总体成本。

公开(公告)号：US20070240001A1

公开(公告)日：2007-10-11

申请号：US11715211

申请日：2007-03-07

申请人： Masood Syed ,  Yuqian Wong ,  Brima Ibrahim ,  Mitchell Buznitsky

发明人： Masood Syed ,  Yuqian Wong ,  Brima Ibrahim ,  Mitchell Buznitsky

IPC分类号： G06F1/26

CPC分类号： G06F1/3287 ,  G06F1/3203 ,  Y02D10/171

摘要： An embedded processor system including at least one gated power unit including an internal ROM and a power controller that provides one or more gated power signals to selectively provide power to each gated power unit. The power controller provides a gated clock signal to the embedded processor to selectively control power consumption of the processor. The power controller powers down each gated power unit after freezing the processor and then powers up each gated power unit before reactivating the processor. The embedded processor system may include isolation circuitry, such as clamp circuitry or the like, that is operative to minimize current flow into each gated power unit when powered down. The gated power units may include a static function. The ROM of an embedded ROM-based microprocessor system is powered down when the microprocessor is idle to reduce or otherwise eliminate intrinsic leakage.

公开(公告)号：US20070207751A1

公开(公告)日：2007-09-06

申请号：US11711719

申请日：2007-02-28

申请人： Arya Behzad ,  Prasanna Desai ,  Brima Ibrahim ,  Mark Gonikberg ,  Thomas Varghese

发明人： Arya Behzad ,  Prasanna Desai ,  Brima Ibrahim ,  Mark Gonikberg ,  Thomas Varghese

IPC分类号： H04B7/08

CPC分类号： H04B1/406 ,  H04B1/18

摘要： A radio receiver is described that processes multiple wireless standards using a single antenna according to embodiments of the invention. The radio receiver includes a single antenna, and a low noise amplifier that is connected to the antenna, without an intervening power divider or power splitter. The output of the low noise amplifier feeds multiple wireless receivers in a parallel arrangement that are operating according to different communications standards, including for example a Bluetooth receiver, and a WLAN 802.11 receiver. Additional wireless standards and their corresponding receivers could be added as well. The input impedance of the low noise amplifier defines the impedance seen by the antenna, regardless of which operational standard is actually in use. Since the input impedance of the low noise amplifier is substantially independent of whether the Bluetooth or WLAN paths are ON or OFF, simultaneous operation can be accomplished.

摘要翻译： 描述了根据本发明的实施例的使用单个天线处理多个无线标准的无线电接收机。 无线电接收机包括单个天线和连接到天线的低噪声放大器，而没有中间的功率分配器或功率分配器。 低噪声放大器的输出以并行布置馈送多个无线接收器，该并行装置根据不同的通信标准（例如蓝芽接收机）和WLAN 802.11接收机进行操作。 还可以添加附加的无线标准及其对应的接收器。 低噪声放大器的输入阻抗定义天线所看到的阻抗，无论实际使用哪个操作标准。 由于低噪声放大器的输入阻抗基本上与蓝牙或WLAN路径是ON还是OFF无关，所以可以实现同时的操作。

公开(公告)号：US20060274704A1

公开(公告)日：2006-12-07

申请号：US11387309

申请日：2006-03-23

申请人： Prasanna Desai ,  Brima Ibrahim

发明人： Prasanna Desai ,  Brima Ibrahim

IPC分类号： H04Q7/24

CPC分类号： H04W72/1215 ,  H04W72/1242 ,  H04W84/12 ,  H04W84/18 ,  H04W88/06

摘要： Certain embodiments of the invention may be found in a method and system for collaborative coexistence between Bluetooth and IEEE 802.11 g with both technologies integrated onto an SOC device. In a single integrated circuit (IC) that handles Bluetooth and WLAN technologies, a WLAN priority level may be selected for WLAN transmissions and a Bluetooth priority level may be selected for Bluetooth transmissions. The WLAN and Bluetooth priority levels may be selected from a plurality of priority levels. A packet transfer scheduler (PTS) may schedule the transmission of WLAN and Bluetooth signals in accordance with the selected priority levels. In some instances, the PTS may promote or demote the priority levels for WLAN and/or Bluetooth transmissions based on traffic needs.

摘要翻译： 本发明的某些实施例可以在用于协同共存的方法和系统中找到，所述方法和系统具有集成到SOC设备上的两种技术的蓝牙和IEEE 802.11g之间的协同共存。 在处理蓝牙和WLAN技术的单个集成电路（IC）中，可以为WLAN传输选择WLAN优先级，并且可以为蓝牙传输选择蓝牙优先级。 可以从多个优先级中选择WLAN和蓝牙优先级。 分组传送调度器（PTS）可以根据所选择的优先级来调度WLAN和蓝牙信号的传输。 在某些情况下，PTS可以基于业务需求来提升或降低WLAN和/或蓝牙传输的优先级。

公开(公告)号：US20060270449A1

公开(公告)日：2006-11-30

申请号：US11287075

申请日：2005-11-22

申请人： Hea Kim ,  Brima Ibrahim

发明人： Hea Kim ,  Brima Ibrahim

IPC分类号： H04M1/00

CPC分类号： H04H40/18 ,  H04B1/034 ,  H04B1/207 ,  Y02D70/14

摘要： Aspects of a method and system for a radio data service (RDS) demodulator for a single chip integrated Bluetooth and frequency modulation (FM) transceiver and baseband processor are presented. Aspects of the system may include circuitry on a single chip that enables demodulation of an RDS signal, filtering of the RDS signal, and detection of binary bits in the filtered RDS signal. The filtered RDS signal may be generated by filtering the RDS signal based on a raised cosine filter, or a doublet filter. In general, the RDS signal may also be filtered by a filter that is a first, or greater derivative of a Gaussian filter in either the time or frequency domain. Aspects of the method may include demodulating the RDS signal, filtering the RDS signal, and detecting binary bits in the filtered RDS signal.

摘要翻译： 提出了用于单芯片集成蓝牙和频率调制（FM）收发器和基带处理器的无线电数据服务（RDS）解调器的方法和系统的方面。 该系统的方面可以包括能够解调RDS信号，对RDS信号进行滤波以及检测经滤波的RDS信号中的二进制位的单个芯片上的电路。 可以通过基于升余弦滤波器或双滤波器对RDS信号进行滤波来生成经滤波的RDS信号。 通常，RDS信号也可以由滤波器滤波，滤波器是时域或频域中的高斯滤波器的第一或更大的导数。 该方法的方面可以包括解调RDS信号，滤波RDS信号，以及检测经滤波的RDS信号中的二进制位。