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。

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：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：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：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：US07995687B2

公开(公告)日：2011-08-09

申请号：US11682052

申请日：2007-03-05

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

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

IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04L25/08 ,  H04L1/00 ,  H04B15/00

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：US20080233883A1

公开(公告)日：2008-09-25

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： H04B1/02

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。

公开(公告)号：US20060268965A1

公开(公告)日：2006-11-30

申请号：US11287181

申请日：2005-11-22

申请人： Brima Ibrahim ,  Siukai Mak ,  Theodore Trost

发明人： Brima Ibrahim ,  Siukai Mak ,  Theodore Trost

IPC分类号： H04B1/00

CPC分类号： H04H40/18 ,  H04H2201/13 ,  Y02D70/14

摘要： A method and system for an RDS decoder for single chip integrated Bluetooth and FM Transceiver and baseband processor are provided. The RDS decoder may have two phases, an acquisition phase and a decoding phase. During an acquisition phase, synchronization of a bit stream may be established based on detecting at least a portion of a plurality of received radio data service (RDS) data blocks. The synchronized bit stream may then be decoded during the decoding phase. If during decoding, at least a portion of the bit stream is out of synchronization, the bit stream may be synchronized without returning to the acquisition phase.

摘要翻译： 提供了一种用于单芯片集成蓝牙和FM收发器和基带处理器的RDS解码器的方法和系统。 RDS解码器可以具有两个阶段，即采集阶段和解码阶段。 在采集阶段期间，可以基于检测多个接收到的无线电数据服务（RDS）数据块的至少一部分来建立比特流的同步。 然后可以在解码阶段期间解码同步比特流。 如果在解码期间，比特流的至少一部分不同步，则比特流可以被同步而不返回到采集阶段。

公开(公告)号：US20050288052A1

公开(公告)日：2005-12-29

申请号：US10910426

申请日：2004-08-03

申请人： Keith Carter ,  Brima Ibrahim ,  Siukai Mak ,  Ken Gin

发明人： Keith Carter ,  Brima Ibrahim ,  Siukai Mak ,  Ken Gin

IPC分类号： H04B7/005 ,  H04B17/00 ,  H04W52/22 ,  H04Q7/20

CPC分类号： H04W52/225 ,  H04B17/102 ,  H04B17/14

摘要： A method for temperature compensation of transmit power of a wireless communication device begins by measuring transmit power of the wireless communication device at a first temperature-based biasing condition to produce a first measured transmit power. The method continues by measuring transmit power of the wireless communication device at a second temperature-based biasing condition to produce a second measured transmit power. The method continues by determining ambient temperature of at least a portion of the wireless communication device based on the first and second measured transmit powers and a relationship between the first and second temperature-based biasing conditions. The method continues by compensating transmit power level of the wireless communication device based on the ambient temperature.

摘要翻译： 一种用于无线通信设备的发射功率的温度补偿的方法是通过在第一基于温度的偏置条件下测量无线通信设备的发射功率而开始的，以产生第一测量的发射功率。 该方法通过在第二基于温度的偏置条件下测量无线通信设备的发射功率来继续，以产生第二测量的发射功率。 该方法通过基于第一和第二测量的发射功率以及第一和第二基于温度的偏置条件之间的关系来确定无线通信设备的至少一部分的环境温度。 该方法通过基于环境温度补偿无线通信设备的发射功率电平来继续。