公开(公告)号：US20050197064A1

公开(公告)日：2005-09-08

申请号：US11101961

申请日：2005-04-08

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

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

IPC分类号： H04L25/06 ,  H04B7/00 ,  H04B1/00 ,  H04B15/00

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：US20060093070A1

公开(公告)日：2006-05-04

申请号：US10989536

申请日：2004-11-16

申请人： Brima Ibrahim ,  Hea Kim ,  Henrik Jensen ,  Paul Lettieri ,  Siukai Mak

发明人： Brima Ibrahim ,  Hea Kim ,  Henrik Jensen ,  Paul Lettieri ,  Siukai Mak

IPC分类号： H04L27/22

CPC分类号： H03D3/006

摘要： Methods and systems for processing an RF signal are disclosed herein. Aspects of the method may comprise utilizing a single input CORDIC and a single output CORDIC for synchronizing and demodulating a received signal, wherein the received signal may comprise one or more bit rates. The received signal may comprise a one megabit per second (Mbps) signal. The single input CORDIC may be configured to operate in a rotating mode and the single output CORDIC may be configured to operate in a rotating mode and/or an arctangent (ARCTAN) mode. A rotated output of the single input CORDIC may be correlated with a phase shift keying (PSK) synchronization (sync) word and a portion of the correlated rotated output of the single input CORDIC may be buffered.

摘要翻译： 本文公开了用于处理RF信号的方法和系统。 该方法的方面可以包括利用单个输入CORDIC和单个输出CORDIC来同步和解调所接收的信号，其中所接收的信号可以包括一个或多个比特率。 所接收的信号可以包括一兆兆比特每秒（Mbps）信号。 单输入CORDIC可以被配置为以旋转模式操作，并且单输出CORDIC可以被配置为在旋转模式和/或反正切（ARCTAN）模式下操作。 单输入CORDIC的旋转输出可以与相移键控（PSK）同步（sync）字相关，并且单个输入CORDIC的相关旋转输出的一部分可以被缓冲。

公开(公告)号：US20060270346A1

公开(公告)日：2006-11-30

申请号：US11286555

申请日：2005-11-22

申请人： Brima Ibrahim ,  Mitchell Buznitsky ,  Ahmadreza Rofougaran ,  John Walley ,  Bojko Marholev ,  Roy Tobin ,  Prasanna Desai ,  Angel Polo ,  Hea Kim ,  Paul Lettieri ,  Siukai Mak

发明人： Brima Ibrahim ,  Mitchell Buznitsky ,  Ahmadreza Rofougaran ,  John Walley ,  Bojko Marholev ,  Roy Tobin ,  Prasanna Desai ,  Angel Polo ,  Hea Kim ,  Paul Lettieri ,  Siukai Mak

IPC分类号： H04B7/00 ,  H04M1/00

CPC分类号： H04H20/08 ,  H04B1/406 ,  H04H60/80 ,  H04H60/92 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/40

摘要： A method and system for a single chip integrated Bluetooth and FM transceiver and baseband processor are provided. The single chip may comprise a Bluetooth radio, an FM radio, a processor system, and a peripheral transport unit (PTU). FM data may be received and/or transmitted via the FM radio and Bluetooth data may be received and/or transmitted via the Bluetooth radio. The FM radio may receive radio data system (RDS) data. The PTU may support digital and analog interfaces. A processor in the processor system may time-multiplex processing of FM data and processing of Bluetooth data. The single chip may operate in an FM-only, a Bluetooth-only, and an FM-Bluetooth mode. The single chip may reduce power consumption by disabling portions of the Bluetooth radio during FM-only mode and/or disabling analog circuitry when performing digital processing. Communication between Bluetooth and FM channels may be enabled via the single chip.

摘要翻译： 提供了用于单芯片集成蓝牙和FM收发器和基带处理器的方法和系统。 单芯片可以包括蓝牙无线电，FM无线电，处理器系统和外围传输单元（PTU）。 可以通过FM收音机接收和/或发送FM数据，并且可以经由蓝牙无线电接收和/或发送蓝牙数据。 FM收音机可以接收无线电数据系统（RDS）数据。 PTU可以支持数字和模拟接口。 处理器系统中的处理器可以对FM数据进行时间复用处理和处理蓝牙数据。 单芯片可以仅在FM，蓝牙和FM蓝牙模式下工作。 单芯片可以通过在仅FM模式期间禁用蓝牙无线电的部分并且/或在执行数字处理时禁用模拟电路来降低功耗。 蓝牙和FM频道之间的通信可以通过单个芯片启用。

公开(公告)号：US20060133291A1

公开(公告)日：2006-06-22

申请号：US11093388

申请日：2005-03-30

申请人： Hea Kim ,  Paul Lettieri ,  Brima Ibrahim ,  Siukai Mak

发明人： Hea Kim ,  Paul Lettieri ,  Brima Ibrahim ,  Siukai Mak

IPC分类号： C12P21/06

CPC分类号： H04L1/0061 ,  H04L1/206

摘要： Certain aspects of determining a signal quality metric in event of a CRC false positive may comprise measuring an amplitude and/or phase of at least a portion of a phase shift keyed section of a frame. The measured amplitude and/or phase may be checked to determine if it lies within a range of a reference amplitude and/or phase respectively. An amplitude and/or phase counter may be incremented if the measured amplitude and/or phase lies outside the range of the reference amplitude and/or phase respectively. A confidence level value of a cyclic redundancy check (CRC) for at least a portion of the phase shift keyed section of the frame may be determined based on a determined value of the incremented amplitude and/or phase counter.

摘要翻译： 在CRC假阳性的情况下确定信号质量度量的某些方面可以包括测量帧的相移键控部分的至少一部分的幅度和/或相位。 可以检查测量的幅度和/或相位以确定其是否位于参考幅度和/或相位的范围内。 如果测量的幅度和/或相位分别在参考幅度和/或相位的范围之外，幅度和/或相位计数器可以增加。 可以基于增加的幅度和/或相位计数器的确定值来确定帧的相移键控部分的至少一部分的循环冗余校验（CRC）的置信水平值。

公开(公告)号：US20120003942A1

公开(公告)日：2012-01-05

申请号：US12878771

申请日：2010-09-09

申请人： Norbert Grunert ,  Brima Ibrahim ,  Siukai Mak ,  Hea Joung Kim ,  Amir Ibrahim ,  Thomas Baker

发明人： Norbert Grunert ,  Brima Ibrahim ,  Siukai Mak ,  Hea Joung Kim ,  Amir Ibrahim ,  Thomas Baker

IPC分类号： H04W24/00

CPC分类号： H04W16/14 ,  H04W72/082

摘要： In a radio comprising a transmitter and a receiver, transmission and reception of signals may be controlled based on received signal strength measurements from a signal strength indicator module and transmitted signal strength measurements from the signal strength indicator module. For the transmitted signal strength measurements, the shared signal strength indicator module may measure signal strength of a signal output by a power amplifier. For the received signal strength measurements, the shared signal strength indicator module may measure signal strength of a received signal. A capacitance coupled to an output of the power amplifier may be configured based on a frequency of the signal output by the power amplifier. A gain of the power amplifier may be controlled based on the transmitted signal strength measurements. For the transmitted signal strength measurements, an analog-to-digital converter may process the signal output by the power amplifier.

摘要翻译： 在包括发射机和接收机的无线电设备中，可以基于来自信号强度指示器模块的接收信号强度测量值和来自信号强度指示器模块的发射信号强度测量值来控制信号的发送和接收。 对于发射信号强度测量，共享信号强度指示器模块可以测量由功率放大器输出的信号的信号强度。 对于接收的信号强度测量，共享信号强度指示器模块可以测量接收信号的信号强度。 可以基于由功率放大器输出的信号的频率来配置耦合到功率放大器的输出的电容。 功率放大器的增益可以基于传输的信号强度测量来控制。 对于发射信号强度测量，模数转换器可以处理由功率放大器输出的信号。

公开(公告)号：US08081714B2

公开(公告)日：2011-12-20

申请号：US10989536

申请日：2004-11-16

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

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

IPC分类号： H04L27/00

CPC分类号： H03D3/006

摘要： Methods and systems for processing an RF signal are disclosed herein. Aspects of the method may comprise utilizing a single input CORDIC and a single output CORDIC for synchronizing and demodulating a received signal, wherein the received signal may comprise one or more bit rates. The received signal may comprise a one megabit per second (Mbps) signal. The single input CORDIC may be configured to operate in a rotating mode and the single output CORDIC may be configured to operate in a rotating mode and/or an arctangent (ARCTAN) mode. A rotated output of the single input CORDIC may be correlated with a phase shift keying (PSK) synchronization (sync) word and a portion of the correlated rotated output of the single input CORDIC may be buffered.

摘要翻译： 本文公开了用于处理RF信号的方法和系统。 该方法的方面可以包括利用单个输入CORDIC和单个输出CORDIC来同步和解调所接收的信号，其中所接收的信号可以包括一个或多个比特率。 所接收的信号可以包括一兆兆比特每秒（Mbps）信号。 单输入CORDIC可以被配置为以旋转模式操作，并且单输出CORDIC可以被配置为在旋转模式和/或反正切（ARCTAN）模式下操作。 单输入CORDIC的旋转输出可以与相移键控（PSK）同步（sync）字相关，并且单个输入CORDIC的相关旋转输出的一部分可以被缓冲。

公开(公告)号：US20110294432A1

公开(公告)日：2011-12-01

申请号：US13206035

申请日：2011-08-09

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： H04B7/00

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

摘要： A method for frequency selection in a wireless communication system, includes performing in a wireless device, receiving at least one signal at a current frequency; processing at least one data packet received via the received at least one signal to determine the presence of bit errors; characterizing the received at least one signal received at the current frequency based on the processing of the at least one data packet; classifying the current frequency based on at least the characterization of the received at least one signal; and selecting the current frequency based on the classification. At least one signal strength measurement may be performed on the received at least one signal, and the processing of the at least one data packet may be performed within a current channel classification update interval.

摘要翻译： 一种在无线通信系统中进行频率选择的方法，包括在无线设备中执行以当前频率接收至少一个信号; 处理经由所接收的至少一个信号接收的至少一个数据分组，以确定位错误的存在; 基于所述至少一个数据分组的处理来表征所接收的以当前频率接收的至少一个信号; 至少基于所接收的至少一个信号的特征来对当前频率进行分类; 并根据分类选择当前频率。 可以对所接收的至少一个信号执行至少一个信号强度测量，并且可以在当前信道分类更新间隔内执行至少一个数据分组的处理。

公开(公告)号：US07796709B2

公开(公告)日：2010-09-14

申请号：US12364465

申请日：2009-02-02

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：US08457561B2

公开(公告)日：2013-06-04

申请号：US12878771

申请日：2010-09-09

申请人： Norbert Grunert ,  Brima Ibrahim ,  Siukai Mak ,  Hea Joung Kim ,  Amir Ibrahim ,  Thomas Baker

发明人： Norbert Grunert ,  Brima Ibrahim ,  Siukai Mak ,  Hea Joung Kim ,  Amir Ibrahim ,  Thomas Baker

IPC分类号： H04B1/00

CPC分类号： H04W16/14 ,  H04W72/082

摘要： In a radio comprising a transmitter and a receiver, transmission and reception of signals may be controlled based on received signal strength measurements from a signal strength indicator module and transmitted signal strength measurements from the signal strength indicator module. For the transmitted signal strength measurements, the shared signal strength indicator module may measure signal strength of a signal output by a power amplifier. For the received signal strength measurements, the shared signal strength indicator module may measure signal strength of a received signal. A capacitance coupled to an output of the power amplifier may be configured based on a frequency of the signal output by the power amplifier. A gain of the power amplifier may be controlled based on the transmitted signal strength measurements. For the transmitted signal strength measurements, an analog-to-digital converter may process the signal output by the power amplifier.

摘要翻译： 在包括发射机和接收机的无线电设备中，可以基于来自信号强度指示器模块的接收信号强度测量值和来自信号强度指示器模块的发射信号强度测量值来控制信号的发送和接收。 对于发射信号强度测量，共享信号强度指示器模块可以测量由功率放大器输出的信号的信号强度。 对于接收的信号强度测量，共享信号强度指示器模块可以测量接收信号的信号强度。 可以基于由功率放大器输出的信号的频率来配置耦合到功率放大器的输出的电容。 功率放大器的增益可以基于传输的信号强度测量来控制。 对于发射信号强度测量，模数转换器可以处理由功率放大器输出的信号。

公开(公告)号：US08027641B2

公开(公告)日：2011-09-27

申请号：US11832844

申请日：2007-08-02

申请人： Brima Ibrahim ,  John Walley ,  Scott Bibaud ,  Bojko Marholev ,  Prasan Pai ,  Siukai Mak

发明人： Brima Ibrahim ,  John Walley ,  Scott Bibaud ,  Bojko Marholev ,  Prasan Pai ,  Siukai Mak

IPC分类号： H04B1/00

CPC分类号： H03L7/085 ,  H03L7/181

摘要： A method and system is provided processing channel information may include in a mobile FM radio system including an integrated FM radio transmitter and FM radio receiver, dynamically generating a list of local FM channels, ranking local FM channels in the generated list, and selecting one of the ranked local FM channels for use by the FM transmitter based on neighboring channel interference. The FM radio receiver may detect FM channels being transmitted or not being transmitted, detect a pilot signal or a channel transmission pause. A tuning frequency of the FM radio receiver may be adjusted for scanning and detecting the local FM channels based on knowledge of a location of the FM radio receiver, received signal strength indicator (RSSI), dynamically scanning for local FM channel based on received RDS/RDBS data or country code, and/or carrier error of a related FM signal.

摘要翻译： 提供了一种方法和系统，处理频道信息可以包括在包括集成FM无线电发射机和FM无线电接收机的移动FM无线电系统中，动态地生成本地FM频道的列表，对生成的列表中的本地FM频道进行排序，并且选择 基于相邻信道干扰的FM发射机使用的排名本地FM频道。 FM无线电接收机可以检测正在发送或未被发送的FM信道，检测导频信号或信道传输暂停。 FM调频无线电接收机的调谐频率可以根据FM无线电接收机的位置，接收信号强度指示符（RSSI）的知识，基于接收到的RDS / RDBS数据或国家代码，和/或相关FM信号的载波误差。