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1. 发明申请

US20050197064A1 Method and system for using PSK sync word for fine tuning frequency adjustment 有权
标题翻译：使用PSK同步字进行微调频率调整的方法和系统
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。

2. 发明申请

US20060093070A1 Method and system for reuse of CORDIC in an RF transceiver by reconfiguration in real time 有权
标题翻译： CORDIC在RF收发器中实时重配置的方法和系统
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。

3. 发明申请

US20060270346A1 Method and system for a single chip integrated Bluetooth and FM transceiver and baseband processor 失效
标题翻译：单芯片集成蓝牙和FM收发器和基带处理器的方法和系统
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。

4. 发明申请

US20060133291A1 Method and system for determining a signal quality metric in event of a CRC false positive 有权
标题翻译：在CRC假阳性的情况下确定信号质量度量的方法和系统
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。

5. 发明申请

US20060093081A1 Method and system for packet synchronization 有权
公开(公告)号：US20060093081A1
公开(公告)日：2006-05-04
申请号：US11101990
申请日：2005-04-08
申请人： Brima Ibrahim , Hea Kim , Henrik Jensen
发明人： Brima Ibrahim , Hea Kim , Henrik Jensen
IPC分类号： H04L7/00
CPC分类号： H04L7/08
摘要： A method and system for packet synchronization may comprise receiving a plurality of bits from an incoming sample of data. The received plurality of bits may be sliced at a first sampling rate. A logic level of at least one of the received plurality of bits may be determined based on the slicing of the received plurality of bits. The received plurality of bits may be synchronized with a channel access code based on determining the logic level of at least one of the received plurality of bits. The channel access code may be sampled at a higher frequency, to increase the probability of detecting whether the incoming bit is LOGIC 1 or LOGIC 0.

6. 发明申请

US20060093079A1 Method and system for adjusting DC offset slice point in an RF receiver 有权
标题翻译：用于调整RF接收机中DC偏移片段的方法和系统
公开(公告)号：US20060093079A1
公开(公告)日：2006-05-04
申请号：US11102157
申请日：2005-04-08
申请人： Hea Kim , Brima Ibrahim , Henrik Jensen
发明人： Hea Kim , Brima Ibrahim , Henrik Jensen
IPC分类号： H04L27/06 , H04L27/14
CPC分类号： H04L27/142 , H04L25/062
摘要： A method for adjusting a DC offset slice point in an RF receiver is provided and may comprise estimating DC offset using a combination of fast tracking of an input signal and slow tracking of an input signal. If both are used, the fast tracking may be executed prior to executing the slow tracking. The fast tracking may acquire synchronizing signals transmitted before a payload. Additionally, noise tolerance may be increased in the fast tracking and the slow tracking by using tracking envelopes. The fast tracking may average acquisition envelopes and tracking envelopes using a fast tracking weighting factor to a sum of the acquisition envelopes and a slow tracking weighting factor to a sum of the tracking envelopes. Additionally, the slow tracking may average the tracking envelopes.
摘要翻译：提供了一种用于调整RF接收机中的DC偏移切片点的方法，并且可以包括使用输入信号的快速跟踪和输入信号的慢跟踪的组合来估计DC偏移。如果使用两者，则可以在执行慢速跟踪之前执行快速跟踪。快速跟踪可以获取在有效载荷之前传输的同步信号。此外，通过使用跟踪包络，快速跟踪和慢速跟踪可能会增加噪声容限。快速跟踪可以使用快速跟踪加权因子将采集包络和跟踪包络平均为采集包络和缓慢跟踪加权因子之和到跟踪包络的总和。此外，慢速跟踪可以平均跟踪包络。

7. 发明申请

US20050181729A1 Method and system for frequency feedback adjustment in digital receivers 有权
标题翻译：数字接收机频率反馈调整方法及系统
公开(公告)号：US20050181729A1
公开(公告)日：2005-08-18
申请号：US11102123
申请日：2005-04-08
申请人： Brima Ibrahim , Hea Kim , Henrik Jensen
发明人： Brima Ibrahim , Hea Kim , Henrik Jensen
IPC分类号： H04L25/06 , H04B7/00 , H04B17/00 , H04M1/00
CPC分类号： H03J7/02 , H03J2200/02 , H04L25/063 , H04L27/142 , H04L2027/0057 , H04L2027/0065
摘要： In RF transceivers, a method and a system for a frequency feedback adjustment in digital receivers are provided. A DC offset may result from the difference in frequencies between an RF transmitter and an RF receiver. An adjustment of the receiver's frequency may be implemented after synchronization occurs and may be performed by utilizing the Forward Error Correction (FEC) repetition rate in a header of a Bluetooth packet. The adjustment may be performed when the frequency difference exceeds a threshold value. In another aspect, adjusting the frequency of the RF receiver may be performed by modifying and/or changing a phase locked loop (PLL) trimmer register. 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，提供了用于数字接收机中的频率反馈调整的方法和系统。 DC偏移可能由RF发射机和RF接收机之间的频率差引起。可以在同步发生之后实现接收机频率的调整，并且可以通过利用蓝牙分组的报头中的前向纠错（FEC）重复率来执行。当频率差超过阈值时，可以进行调整。在另一方面，可以通过修改和/或改变锁相环（PLL）微调寄存器来调整RF接收机的频率。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。

8. 发明申请

US20120003942A1 METHOD AND SYSTEM FOR SIGNAL STRENGTH MEASUREMENT 有权
标题翻译：信号强度测量方法与系统
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。

9. 发明授权

US08081714B2 Method and system for reuse of CORDIC in an RF transceiver by reconfiguration in real time 有权
标题翻译： CORDIC在RF收发器中实时重配置的方法和系统
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。

10. 发明申请

US20110294432A1 FAST AND RELIABLE CHANNEL CLASSIFICATION ALGORITHMS IN BLUETOOTH NETWORKS TO DETECT AND AVOID 2.4 GHZ INTERFERERS 有权
标题翻译：蓝牙网络中快速可靠的通道分类算法，以检测和避免2.4 GHZ干扰器
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。

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