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    • 1. 发明授权
    • Method and system for quick Bluetooth low energy (BLE) protocol signal presence detection for coexistence
    • 快速蓝牙低能(BLE)协议信号存在检测方法和系统共存
    • US08874034B2
    • 2014-10-28
    • US12267951
    • 2008-11-10
    • John S. WalleyBrima Babatunde IbrahimSteven HallPrasanna DesaiYuan Zhuang
    • John S. WalleyBrima Babatunde IbrahimSteven HallPrasanna DesaiYuan Zhuang
    • H04B7/00H04W16/14
    • H04W16/14
    • Aspects of the invention may comprise managing operations of BLE interfaces and/or other radio interfaces in a wireless device to mitigate interference to communication via the BLE interfaces by the other radio interfaces. Operating parameters may be communicated between the BLE interfaces and the other radio interfaces to enable mitigating the interference to the BLE interfaces, and at least some of the BLE interfaces and/or the other radio interfaces may be configured based on the communicated operating parameters. The operating parameters may comprise adaptive frequency hopping (AFH) maps that may be adjusted to prevent use of common and/or used channels. The communication device may detect energy associated with BLE communication via scan of all or some of channels used for BLE communication. BLE communication may be predicted based on monitoring of frequency bands used during BLE communication, and/or monitoring of events that may trigger and/or occur during BLE communication.
    • 本发明的方面可以包括管理无线设备中的BLE接口和/或其他无线电接口的操作,以减轻其他无线电接口经由BLE接口的通信的干扰。 可以在BLE接口和其他无线电接口之间传送操作参数,以便减轻对BLE接口的干扰,并且可以基于传送的操作参数来配置至少一些BLE接口和/或其他无线接口。 操作参数可以包括可以被调整以防止使用公共和/或使用的信道的自适应跳频(AFH)映射。 通信设备可以通过扫描用于BLE通信的全部或一些信道来检测与BLE通信相关联的能量。 可以基于在BLE通信期间使用的频带的监视和/或监视在BLE通信期间可能触发和/或发生的事件的BLE通信。
    • 2. 发明申请
    • METHOD AND SYSTEM FOR QUICK BLUETOOTH LOW ENERGY (BLE) PROTOCOL SIGNAL PRESENCE DETECTION FOR COEXISTENCE
    • 快速蓝牙低能(BLE)协议信号存在检测方法与系统
    • US20100120362A1
    • 2010-05-13
    • US12267951
    • 2008-11-10
    • John S. WalleyBrima Babatunde IbrahimSteven HallPrasanna DesaiYuan Zhuang
    • John S. WalleyBrima Babatunde IbrahimSteven HallPrasanna DesaiYuan Zhuang
    • H04B7/00
    • H04W16/14
    • Aspects of the invention may comprise managing operations of BLE interfaces and/or other radio interfaces in a wireless device to mitigate interference to communication via the BLE interfaces by the other radio interfaces. Operating parameters may be communicated between the BLE interfaces and the other radio interfaces to enable mitigating the interference to the BLE interfaces, and at least some of the BLE interfaces and/or the other radio interfaces may be configured based on the communicated operating parameters. The operating parameters may comprise adaptive frequency hopping (AFH) maps that may be adjusted to prevent use of common and/or used channels. The communication device may detect energy associated with BLE communication via scan of all or some of channels used for BLE communication. BLE communication may be predicted based on monitoring of frequency bands used during BLE communication, and/or monitoring of events that may trigger and/or occur during BLE communication.
    • 本发明的方面可以包括管理无线设备中的BLE接口和/或其他无线电接口的操作,以减轻其他无线电接口经由BLE接口的通信的干扰。 可以在BLE接口和其他无线电接口之间传送操作参数,以便减轻对BLE接口的干扰,并且可以基于传送的操作参数来配置至少一些BLE接口和/或其他无线接口。 操作参数可以包括可以被调整以防止使用公共和/或使用的信道的自适应跳频(AFH)映射。 通信设备可以通过扫描用于BLE通信的全部或一些信道来检测与BLE通信相关联的能量。 可以基于在BLE通信期间使用的频带的监视和/或监视在BLE通信期间可能触发和/或发生的事件的BLE通信。
    • 5. 发明授权
    • Direct conversion spread spectrum time division duplex radio
    • 直接转换扩频时分双工无线电
    • US06862313B2
    • 2005-03-01
    • US10127061
    • 2002-04-18
    • John S. WalleyD. Vincent LaubNorman J. Beamish
    • John S. WalleyD. Vincent LaubNorman J. Beamish
    • H04B1/30H04B1/40H04B1/707H04B15/00H04K1/00H04L27/30
    • H04B1/707H04B1/30H04B1/408
    • A wireless transceiver comprises a digital to analog converter having an input for receiving a digital representation of a direct sequence spread spectrum signal and having an analog output. A filter has an input coupled to the analog output of the digital to analog converter. An adder has a first input coupled to the filtered output and a second input coupled to a loop control voltage generated by a phase lock loop. A VCO integrated into the phase lock loop has a control input coupled to the summed output. An RF output of the VCO produces a continuous phase frequency shift keyed spread spectrum signal in response to the digital representation of the direct sequence spread spectrums signal. A receiver converts received RF signal to baseband in-phase and quadrature that are in turn converted to digitized signals. A demodulator produces chip data that is despread using a matched filter.
    • 无线收发器包括具有用于接收直接序列扩频信号的数字表示并具有模拟输出的输入的数模转换器。 滤波器具有耦合到数模转换器的模拟输出的输入。 加法器具有耦合到滤波输出的第一输入和耦合到由锁相环产生的回路控制电压的第二输入。 集成到锁相环中的VCO具有耦合到求和输出的控制输入。 VCO的RF输出响应于直接序列扩频信号的数字表示而产生连续相位频移键控扩频信号。 接收机将接收的RF信号转换成基带同相和正交,然后转换成数字化信号。 解调器产生使用匹配滤波器解扩的芯片数据。
    • 7. 发明授权
    • Amplification control scheme for a receiver
    • 接收机的放大控制方案
    • US06771720B1
    • 2004-08-03
    • US09823488
    • 2001-03-30
    • Ganning YangJohn S. WalleyYi Weng
    • Ganning YangJohn S. WalleyYi Weng
    • H04L2708
    • H04L27/3809H03G3/3068H04L7/042H04L2027/0065H04L2027/0095
    • A system is provided for controlling amplification in a receiver. The receiver amplifies a signal in accordance with a controlled gain to enhance the reliability of demodulating the received signal. A lower frequency signal is derived by down-converting the received signal. The derived lower frequency signal is converted into a digital baseband signal. A compensatory direct current offset is determined by evaluation of one of trailing symbols and a defined sequence of a data packet of the received signal. A compensatory direct current offset is manipulated with respect to a digital baseband signal to compensate for an unwanted direct current offset of the digital baseband signal, indicative of a frequency difference between the received signal and the transmitted signal.
    • 提供一种用于控制接收机中的放大的系统。 接收机根据受控增益来放大信号以提高解调接收信号的可靠性。 通过对接收到的信号进行下变频来导出较低频率信号。 导出的较低频率信号被转换成数字基带信号。 通过对尾部符号之一和接收信号的数据分组的定义的序列的评估来确定补偿性直流偏移。 相对于数字基带信号来操纵补偿性直流偏移,以补偿表示接收信号与发射信号之间的频率差的数字基带信号的不需要的直流偏移。
    • 10. 发明授权
    • Trap and patch system for virtual replacement of defective volatile memory cells
    • 用于虚拟更换有缺陷的易失性存储单元的陷阱和补丁系统
    • US06421283B1
    • 2002-07-16
    • US09671401
    • 2000-09-27
    • John S. WalleyDong Cho
    • John S. WalleyDong Cho
    • G11C700
    • G11C29/846G11C29/12G11C2029/0407G11C2207/104
    • A typical integrated circuit device may include a central processing unit (CPU), trap and patch (T&P) logic circuits and registers. Volatile RAM and read only memory (ROM) are also provided. A predetermined number of memory locations in the RAM are allocated for defective memory cell replacement. When power is turned on or the system is reset, the CPU executes a program stored in ROM which identifies defective RAM locations on the fly and loads the trap and path circuits and registers with the defective addresses and the replacement or patch RAM locations (addresses). When the CPU reads or writes to the bad RAM locations, the T&P logic inserts the patch address of the good RAM memory location for the reading and writing operations. In this manner, virtual defective RAM replacement is transparent to the CPU.
    • 典型的集成电路设备可以包括中央处理单元(CPU),陷阱和补丁(T&P)逻辑电路和寄存器。 还提供了易失性RAM和只读存储器(ROM)。 RAM中的预定数量的存储器位置被分配用于缺陷存储器单元替换。 当电源打开或系统复位时,CPU执行存储在ROM中的程序,用于识别故障RAM位置,并将陷阱和路径电路和缺陷地址以及替换或补丁RAM位置(地址) 。 当CPU读取或写入不良RAM位置时,T&P逻辑插入读取和写入操作的良好RAM存储单元的补丁地址。 以这种方式,虚拟有缺陷的RAM更换对于CPU是透明的。