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196 条记录 (耗时 0.041 秒)

    Method and system for FM interference detection and mitigation
    61.
    发明申请
    Method and system for FM interference detection and mitigation 有权
    FM干扰检测和减轻的方法和系统

    公开(公告)号：US20060269021A1

    公开(公告)日：2006-11-30

    申请号：US11286950

    申请日：2005-11-22

    申请人： Brima Ibrahim ,  Paul Lettieri

    发明人： Brima Ibrahim ,  Paul Lettieri

    IPC分类号： H03D1/04

    CPC分类号： H04B1/1027 ,  Y02D70/14

    摘要： Methods and systems for processing signals are provided and may include removing a DC component from a signal envelope comprising a combined signal within a range of allocated FM channels to generate a modified signal envelope. Fluctuation in power in the signal envelope may be detected based on a ratio of a magnitude of the signal envelope and a magnitude of the modified signal envelope. The removing may further include low-pass filtering the signal envelope to generate a low-pass filtered signal envelope. A square values of the low-pass filtered signal envelope may be determined to generate a squared signal envelope. The squared signal envelope may be high-pass filtered to generate a high-pass filtered signal envelope. The fluctuation in power in the signal envelope may be detected based on a ratio of a magnitude of the high-pass filtered signal envelope and a magnitude of the low-pass filtered signal envelope.

    摘要翻译： 提供用于处理信号的方法和系统，并且可以包括从包括分配的FM信道的范围内的组合信号的信号包络去除DC分量以产生修改的信号包络。 可以基于信号包络的大小与修改的信号包络的大小的比值来检测信号包络中的功率波动。 去除可以进一步包括对信号包络进行低通滤波以产生低通滤波信号包络。 可以确定低通滤波信号包络的平方值以产生平方信号包络。 平方信号包络可以被高通滤波以产生高通滤波信号包络。 可以基于高通滤波信号包络的幅度与低通滤波信号包络的幅度的比值来检测信号包络中功率的波动。

    Method and system for determining a signal quality metric in event of a CRC false positive
    62.
    发明申请
    Method and system for determining a signal quality metric in event of a CRC false positive 有权
    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。

    Collaborative coexistence with dynamic prioritization of wireless devices
    65.
    发明申请
    Collaborative coexistence with dynamic prioritization of wireless devices 审中-公开
    与无线设备的动态优先级协同共存

    公开(公告)号：US20050215284A1

    公开(公告)日：2005-09-29

    申请号：US10810998

    申请日：2004-03-26

    申请人： Ling Su ,  Brima Ibrahim

    发明人： Ling Su ,  Brima Ibrahim

    IPC分类号： H04L12/28 ,  H04L12/56 ,  H04W72/12 ,  H04W84/12 ,  H04W84/18 ,  H04W88/06 ,  H04Q7/20

    CPC分类号： H04W72/1215 ,  H04W72/1242 ,  H04W88/06

    摘要： A collaboration scheme for wireless communications devices implemented on a single CMOS integrated circuit is described. By providing a dynamically updateable, multiple-priority protocol, more differentiation between traffic types is provided and response time (latency) is reduced by adjusting the priority allocations between the devices when an application on one device requires greater throughput.

    摘要翻译： 描述了在单个CMOS集成电路上实现的无线通信设备的协作方案。 通过提供动态可更新的多优先级协议，当一个设备上的应用程序需要更大的吞吐量时，通过调整设备之间的优先级分配，提供流量类型之间的更多区别，并减少响应时间（延迟）。

    Digital demodulation
    66.
    发明申请
    Digital demodulation 失效
    数字解调

    公开(公告)号：US20050207515A1

    公开(公告)日：2005-09-22

    申请号：US11120561

    申请日：2005-05-03

    申请人： Henrik Jensen ,  Brima Ibrahim

    发明人： Henrik Jensen ,  Brima Ibrahim

    IPC分类号： H04L27/152 ,  H04L27/14

    CPC分类号： H04L27/1525

    摘要： A digital demodulator includes a mixing section, 1st and 2nd digital comb filters, phase locked loop module, and a data recovery module. The mixing section is operably coupled to produce a digital I signal and a digital Q signal from a digital intermediate frequency signal. The 1st comb filter filters the digital I signal while the 2nd comb filter filters the digital Q signal. The phase locked loop module produces a digital signal from the filtered I and filtered Q signals. The data recovery module interprets the digital signal to recapture a data stream.

    摘要翻译： 数字解调器包括混合部分，第一和第二数字梳状滤波器，锁相环模块和数据恢复模块。 混合部分可操作地耦合以从数字中频信号产生数字I信号和数字Q信号。 第1＆lt;梳状滤波器滤波数字I信号，而第2＆amp;梳状滤波器滤波数字Q信号。 锁相环模块从滤波I和滤波Q信号产生数字信号。 数据恢复模块解释数字信号以重新获取数据流。

    Method and system for using PSK sync word for fine tuning frequency adjustment
    67.
    发明申请
    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：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。

    Method and system for packet synchronization
    68.
    发明授权
    Method and system for packet synchronization 有权
    数据包同步的方法和系统

    公开(公告)号：US09071417B2

    公开(公告)日：2015-06-30

    申请号：US11101990

    申请日：2005-04-08

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

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

    IPC分类号： H04L7/00 ,  H04L7/08

    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.

    摘要翻译： 用于分组同步的方法和系统可以包括从输入的数据样本接收多个比特。 所接收的多个比特可以以第一采样率进行切片。 可以基于所接收的多个比特的限幅来确定所接收的多个比特中的至少一个的逻辑电平。 基于确定所接收的多个比特中的至少一个的逻辑电平，所接收的多个比特可以与信道接入码同步。 可以以更高的频率对信道接入码进行采样，以增加检测进入位是逻辑1还是逻辑0的概率。

    Method and system for antenna and radio front-end topologies for a system-on-a-chip (SOC) device that combines bluetooth and IEEE 802.11 b/g WLAN technologies
    69.
    发明授权
    Method and system for antenna and radio front-end topologies for a system-on-a-chip (SOC) device that combines bluetooth and IEEE 802.11 b/g WLAN technologies 有权
    用于组合蓝牙和IEEE 802.11 b / g WLAN技术的片上系统（SOC）设备的天线和无线电前端拓扑的方法和系统

    公开(公告)号：US09059782B2

    公开(公告)日：2015-06-16

    申请号：US11387340

    申请日：2006-03-23

    申请人： Prasanna Desai ,  Brima Ibrahim

    发明人： Prasanna Desai ,  Brima Ibrahim

    IPC分类号： H04B7/00 ,  H04B1/403 ,  H04W88/06

    CPC分类号： H04W72/1215 ,  H04B1/406 ,  H04W4/80 ,  H04W84/12 ,  H04W88/06

    摘要： Certain embodiments of the invention may be found in a method and system for antenna and radio front-end topologies for a system-on-a-chip (SOC) device that combines Bluetooth and IEEE 802.11 b/g WLAN technologies. A single chip radio device that supports WLAN and Bluetooth technologies receives a WLAN signal in a WLAN processing circuitry of the radio front-end and in a Bluetooth processing circuitry of the radio front-end. Signals generated by the WLAN processing circuitry and the Bluetooth processing circuitry from the received WLAN signal may be combined in a diversity combiner that utilizes selection diversity gain combining or maximal ratio combining (MRC). When a generated signal is below a threshold value, the signal may be dropped from the combining operation. A single antenna usage model may be utilized with the single chip radio device front-end topology to support WLAN and Bluetooth communications.

    摘要翻译： 本发明的某些实施例可以在组合蓝牙和IEEE 802.11b / g WLAN技术的用于片上系统（SOC）设备的天线和无线电前端拓扑的方法和系统中找到。 支持WLAN和蓝牙技术的单芯片无线电设备在无线电前端的WLAN处理电路和无线电前端的蓝牙处理电路中接收WLAN信号。 由WLAN处理电路和蓝牙处理电路从接收到的WLAN信号生成的信号可以组合在利用选择分集增益组合或最大比组合（MRC）的分集组合器中。 当生成的信号低于阈值时，可以从组合操作中丢弃该信号。 单个天线使用模型可以与单芯片无线电设备前端拓扑结合使用以支持WLAN和蓝牙通信。

    Power Optimization for Sending Static Indications in Video Transmissions
    70.
    发明申请
    Power Optimization for Sending Static Indications in Video Transmissions 审中-公开
    在视频传输中发送静态指示的功率优化

    公开(公告)号：US20130329810A1

    公开(公告)日：2013-12-12

    申请号：US13494094

    申请日：2012-06-12

    申请人： Murat Mese ,  Brima Ibrahim

    发明人： Murat Mese ,  Brima Ibrahim

    IPC分类号： H04N7/26

    CPC分类号： H04N21/43637 ,  H04L65/4084 ,  H04L65/607 ,  H04N21/236 ,  H04N21/2381

    摘要： An exemplary embodiment includes receiving an encoded video signal containing coded moving macroblocks and static indications corresponding to non-moving macroblocks; and packetizing the encoded video signal for wireless transmission, wherein a series of consecutive static indications in the encoded video signal are grouped with a moving macroblock in a wireless packet.

    摘要翻译： 示例性实施例包括接收包含编码的移动宏块的编码视频信号和对应于非移动宏块的静态指示; 以及打包用于无线传输的编码视频信号，其中编码视频信号中的一系列连续静态指示与无线分组中的移动宏块分组。