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1.发明授权Method and system for reuse of CORDIC in an RF transceiver by reconfiguration in real time 有权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
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。
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2.发明授权公开(公告)号：US08050647B2
公开(公告)日：2011-11-01
申请号：US12563765
申请日：2009-09-21
IPC分类号： H04B1/20
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, for example, utilizing a header portion of a packet communicated via a wireless interface. 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。 接收机频率的调整可以在同步发生之后实现，并且可以通过例如利用经由无线接口传送的分组的报头部分来执行。 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。
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3.发明申请公开(公告)号：US20100009673A1
公开(公告)日：2010-01-14
申请号：US12563765
申请日：2009-09-21
IPC分类号： H04W24/00
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, for example, utilizing a header portion of a packet communicated via a wireless interface. 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，提供了一种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。 接收机频率的调整可以在同步发生之后实现，并且可以通过例如利用经由无线接口传送的分组的报头部分来执行。 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。
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4.发明申请Method and System for Using PSK Sync Word for Fine Tuning Frequency Adjustment 有权使用PSK Sync Word进行微调频率调整的方法和系统公开(公告)号：US20080214112A1
公开(公告)日：2008-09-04
申请号：US12052214
申请日：2008-03-20
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。
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5.发明授权Method and system for using PSK sync word for fine tuning frequency adjustment 有权使用PSK同步字进行微调频率调整的方法和系统公开(公告)号：US08112034B2
公开(公告)日：2012-02-07
申请号：US12052214
申请日：2008-03-20
IPC分类号： H04B7/00
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。
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6.发明授权公开(公告)号：US07684519B2
公开(公告)日：2010-03-23
申请号：US11102157
申请日：2005-04-08
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。
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7.发明授权公开(公告)号：US07599662B2
公开(公告)日：2009-10-06
申请号：US11102123
申请日：2005-04-08
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。
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8.发明授权Method and system for using PSK sync word for fine tuning frequency adjustment 有权使用PSK同步字进行微调频率调整的方法和系统公开(公告)号：US07349680B2
公开(公告)日：2008-03-25
申请号：US11101961
申请日：2005-04-08
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。
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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。
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公开(公告)号：US20080026787A1
公开(公告)日：2008-01-31
申请号：US11460139
申请日：2006-07-26
申请人： Brima Ibrahim , Hea Joung Kim
发明人： Brima Ibrahim , Hea Joung Kim
摘要： Aspects of a method and system for a mobile piconet base station are provided. Switching and/or routing capabilities in mobile handset may enable wireless devices to communicate with each other and/or with a wireless network via the mobile handset. The mobile handset operates as a base station for wireless devices within a personal area or piconet. For voice communication, for example, communication between a wireless device within the piconet and a cellular network or a voice-over-IP (VoIP) network may be established via the mobile handset. The selection between the cellular or VoIP network may be based on rate price and/or on features available in each of the networks, for example. Communication between the wireless devices and the base station mobile handset may occur via a Bluetooth connection and/or another type of wireless technology, for example. The wireless devices may be low-cost, small form factor mobile handsets, for example.
摘要翻译： 提供了一种用于移动微微网基站的方法和系统的方面。 移动手机中的切换和/或路由能力可以使无线设备能够经由移动手持机彼此和/或与无线网络进行通信。 移动手机作为用于个人区域或微微网内的无线设备的基站。 对于语音通信，例如，可以经由移动手持机建立微微网内的无线设备与蜂窝网络或IP语音（VoIP）网络之间的通信。 例如，蜂窝或VoIP网络之间的选择可以基于速率价格和/或每个网络中可用的特征。 例如，无线设备和基站移动手持机之间的通信可以经由蓝牙连接和/或其他类型的无线技术进行。 无线设备可以是例如低成本，小尺寸的移动手机。
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