公开(公告)号：US07684519B2

公开(公告)日：2010-03-23

申请号：US11102157

申请日：2005-04-08

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

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

IPC分类号： H04L25/06 ,  H04L25/10

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。

公开(公告)号：US07640123B2

公开(公告)日：2009-12-29

申请号：US11927853

申请日：2007-10-30

申请人： Brima Ibrahim ,  Steven Deane Hall

发明人： Brima Ibrahim ,  Steven Deane Hall

IPC分类号： G01R23/16

CPC分类号： H04B1/713 ,  H04B1/715

摘要： Aspects of a method and system for detecting Bluetooth signals utilizing a wideband receiver are provided. In this regard, a frequency band may be scanned by receiving signals on each of a plurality of sub-bands for an amount of time, the energy received in each band may be compared to a threshold, and whether each sub-band comprises a Bluetooth transmission may be determined based on a FFT. Additionally, the FFT may enable determining on which Bluetooth channel a detected transmission occurred. A FFT may be performed when energy detected in a sub-band is higher than a threshold. The sub-bands may each be a WLAN channel. A type of a detected Bluetooth transmission may be determined based on a number of scans in which the transmission is detected. Each sub-band may be received for less than or equal to 68 μs divided by the number of sub-bands.

摘要翻译： 提供了利用宽带接收机检测蓝牙信号的方法和系统的方面。 在这方面，可以通过在多个子带中的每一个上接收一段时间的信号来扫描频带，将每个频带中接收的能量与阈值进行比较，以及每个子带是否包括蓝牙 可以基于FFT来确定传输。 另外，FFT可以使得能够确定发生了检测到的传输的蓝牙信道。 当在子带中检测到的能量高于阈值时，可以执行FFT。 子带可以各自是WLAN信道。 可以基于检测到传输的扫描的数量来确定检测到的蓝牙传输的类型。 每个子带可以接收小于或等于68μ除以子带数。

公开(公告)号：US20090296801A1

公开(公告)日：2009-12-03

申请号：US12538444

申请日：2009-08-10

申请人： Brima Ibrahim ,  Hea Joung Kim ,  Paul Lettieri

发明人： Brima Ibrahim ,  Hea Joung Kim ,  Paul Lettieri

IPC分类号： H03H7/30 ,  H04B7/00

CPC分类号： H04L27/0012

摘要： Aspects of a method and system for selective equalization enablement based on modulation type may be found in a method for processing a radio frequency (RF) signal that comprises receiving a Bluetooth signal via an RF channel, detecting a modulation type of the received Bluetooth signal, and selecting an equalization circuit for processing the received Bluetooth signal based on the detected modulation type. The method may also comprise determining a data rate based on the detected modulation type.

摘要翻译： 基于调制类型的选择性均衡使能的方法和系统的方面可以在用于处理射频（RF）信号的方法中找到，该方法和系统包括经由RF信道接收蓝牙信号，检测接收的蓝牙信号的调制类型， 以及基于检测到的调制类型选择用于处理接收到的蓝牙信号的均衡电路。 该方法还可以包括基于检测到的调制类型来确定数据速率。

公开(公告)号：US20090278994A1

公开(公告)日：2009-11-12

申请号：US12119243

申请日：2008-05-12

申请人： Brima Ibrahim

发明人： Brima Ibrahim

IPC分类号： H04N5/46

CPC分类号： H04N5/46 ,  H04N21/41407 ,  H04N21/4263 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/4383 ,  H04N21/6112 ,  H04N21/6137 ,  H04N21/64315

摘要： Aspects of a method and system for an integrated multi-standard audio and/or video receiver are provided. In this regard, a single audio/video receiver chip may be enabled to receive and process signals adhering to plurality of terrestrial digital audio and/or video standards, and the chip may be configurable based on a format of a desired signal. Exemplary standards may comprise FM broadcast, FM HD, DAB, DAB+, DVB-H, ISDB-T, and DMB-T. One or more RF processing paths and/or one or more baseband processing paths may be configured based on, for example, a frequency of a received signal, a geographical location in which the chip is operated, a modulation scheme of a received signal, and/or the type of information being received. The chip may be configured via software, firmware, and/or manually.

摘要翻译： 提供了用于集成的多标准音频和/或视频接收机的方法和系统的方面。 在这方面，可以使单个音频/视频接收器芯片能够接收和处理遵守多个地面数字音频和/或视频标准的信号，并且可以基于期望信号的格式来配置该芯片。 示例性标准可包括FM广播，FM HD，DAB，DAB +，DVB-H，ISDB-T和DMB-T。 一个或多个RF处理路径和/或一个或多个基带处理路径可以基于例如接收信号的频率，芯片操作的地理位置，接收信号的调制方案以及 /或正在接收的信息类型。 芯片可以通过软件，固件和/或手动配置。

公开(公告)号：US20090264074A1

公开(公告)日：2009-10-22

申请号：US12492601

申请日：2009-06-26

申请人： Hooman Darabi ,  Brima Ibrahim ,  Ahmadreza Rofougaran

发明人： Hooman Darabi ,  Brima Ibrahim ,  Ahmadreza Rofougaran

IPC分类号： H04B7/24 ,  H04B7/005

CPC分类号： H04B1/406

摘要： An integrated multimode radio includes a multimode receiver and a multimode transmitter. The multimode receiver includes a shared receiver front-end, a receiver multiplexor, and a plurality of receiver IF stages. The multimode transmitter includes a shared transmitter front-end, a transmitter multiplexor, and a plurality of transmitter IF stages.

摘要翻译： 集成的多模式无线电设备包括多模接收机和多模发射机。 多模接收机包括共享接收机前端，接收机多路复用器和多个接收机IF级。 多模发射机包括共享发射机前端，发射机多路复用器和多个发射机IF级。

公开(公告)号：US07599662B2

公开(公告)日：2009-10-06

申请号：US11102123

申请日：2005-04-08

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

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

IPC分类号： H04B17/00 ,  H04B7/00

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。

公开(公告)号：US20080238807A1

公开(公告)日：2008-10-02

申请号：US11880257

申请日：2007-07-20

申请人： Brima Ibrahim ,  Prasanna Desai ,  Mark Gonikberg

发明人： Brima Ibrahim ,  Prasanna Desai ,  Mark Gonikberg

IPC分类号： H01Q21/00

CPC分类号： H04B1/401 ,  H01Q21/29 ,  H04B1/44 ,  H04B7/04 ,  H04W88/06

摘要： A method includes determining that an antenna shared between a Bluetooth transceiver and a WLAN transceiver is available to the WLAN transceiver based on an activity signal associated with the Bluetooth transceiver. Access to the shared antenna is provided to the WLAN transceiver based on the determination, and the WLAN transceiver is configured to use diversity in transacting WLAN signals via a plurality of antennas, including the shared antenna. Access to the shared antenna is transferred from the WLAN transceiver to the Bluetooth transceiver based on the activity signal.

摘要翻译： 一种方法包括基于与蓝牙收发器相关联的活动信号来确定WLAN收发器和WLAN收发器之间共享的天线可用于WLAN收发器。 基于确定，向WLAN收发器提供对共享天线的访问，并且WLAN收发器被配置为使用经由包括共享天线的多个天线来处理WLAN信号的分集。 根据活动信号，从WLAN收发器到蓝牙收发器的访问共享天线。

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：US20070285154A1

公开(公告)日：2007-12-13

申请号：US11757014

申请日：2007-06-01

申请人： Hooman Darabi ,  Ahmadreza Rofougaran ,  Shahla Khorram ,  Brima Ibrahim

发明人： Hooman Darabi ,  Ahmadreza Rofougaran ,  Shahla Khorram ,  Brima Ibrahim

IPC分类号： H03K5/00

CPC分类号： H03L7/18 ,  H03B21/01 ,  H03B27/00 ,  H03F1/56 ,  H03F3/19 ,  H03F3/245 ,  H03F3/45179 ,  H03F3/45475 ,  H03F2200/318 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2203/45138 ,  H03F2203/45386 ,  H03F2203/45526 ,  H03F2203/45528 ,  H03F2203/45638 ,  H03G3/001 ,  H03G11/00 ,  H03H7/42 ,  H03H11/1291 ,  H03H11/22 ,  H03H11/344 ,  H03H21/0001 ,  H03H21/0012 ,  H03H2011/0494 ,  H03J2200/10 ,  H03L7/099 ,  H04B17/104 ,  H04B17/14 ,  H04B17/19

摘要： An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

摘要翻译： 在说明书和附图中描述和示出的本发明的示例性实施例是具有接收器，发射器，本地振荡器（LO）发生器，控制器和自检单元的收发器。 所有这些组件都可以封装以集成到单个IC中，其中包括过滤器和电感器等组件。 用于接收机，发射机和LO发生器的自适应编程和校准的控制器。 自检单元产生用于确定接收机，发射机和LO发生器的增益，频率特性，选择性，本底噪声和失真特性。 要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

公开(公告)号：US20070002974A1

公开(公告)日：2007-01-04

申请号：US11516413

申请日：2006-09-05

申请人： Brima Ibrahim ,  Henrik Jensen

发明人： Brima Ibrahim ,  Henrik Jensen

IPC分类号： H04L27/00

CPC分类号： H04L25/061 ,  H04L25/063 ,  H04L27/0014 ,  H04L2027/003 ,  H04L2027/0053 ,  H04L2027/0065

摘要： A method and apparatus for trimming of a local oscillation within a radio frequency integrated circuit (RFIC) includes processing that begins when an RFIC receives a radio frequency (RF) signal having a known frequency. The processing then continues when the RFIC mixes the RF signal with a receiver local oscillation to produce a low intermediate frequency (IF) signal, which may have a carrier frequency of zero (i.e., a baseband signal) or up to a few mega Hertz). The processing then continues when the RFIC demodulates the low IF signal to produce demodulated data. The processing then continues as the RFIC determines a DC offset from the demodulated data, where the DC offset is reflective of the difference between the known frequency and the frequency of the receiver local oscillation. The processing then continues as the RFIC adjusts the receiver local oscillation to reduce the DC offset when the DC offset compares unfavorably with an allowable offset threshold.

摘要翻译： 一种在射频集成电路（RFIC）内修整本地振荡的方法和装置包括当RFIC接收具有已知频率的射频（RF）信号时开始的处理。 然后，当RFIC将RF信号与接收机本地振荡混合以产生可能具有零载波频率（即，基带信号）或高达几兆赫兹的低中频（IF）信号时，处理继续进行。 。 然后，当RFIC解调低IF信号以产生解调数据时，处理继续。 然后，处理继续，因为RFIC从解调数据确定DC偏移，其中DC偏移反映了已知频率和接收机本地振荡的频率之间的差异。 然后，随着RFIC调整接收机本地振荡，当DC偏移与允许的偏移阈值进行不利地比较时，该处理继续减小DC偏移。