会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 43. 发明授权
    • Port number reservation agent
    • 端口号预约代理
    • US08958284B2
    • 2015-02-17
    • US13279378
    • 2011-10-24
    • Stefan Runeson
    • Stefan Runeson
    • H04L29/06H04L29/12H04W4/00
    • H04L69/162H04L61/2007H04L61/6063H04L61/6086H04W4/60
    • In a communication device having a modem subsystem and an Application Processing Engine (APE) that share an IP address, port number conflicts are avoided by a Port Reservation Agent (PRA) running on the APE. Apps executing on the modem subsystem must request to register a port number with the PRA prior to using it. If the address is available, the PRA creates a port reservation socket and associates the port number with the requesting app. If the requested port number is not available, the PRA returns an error and the app must request a different address. To apps executing on the APE, the port reservation sockets appear as port numbers associated with other apps executing on the APE. In this manner, port number conflicts between the modem subsystem and the APE are avoided.
    • 在具有共享IP地址的调制解调器子系统和应用处理引擎(APE)的通信设备中,通过在APE上运行的端口预留代理(PRA)来避免端口号冲突。 在调制解调器子系统上执行的应用程序必须在PRA使用之前请求注册一个端口号。 如果地址可用,则PRA创建一个端口预留套接字,并将端口号与请求应用相关联。 如果请求的端口号不可用,则PRA返回错误,并且应用程序必须请求不同的地址。 对于在APE上执行的应用程序,端口预留套接字显示为与在APE上执行的其他应用程序相关联的端口号。 这样就避免了调制解调器子系统与APE之间的端口号冲突。
    • 44. 发明授权
    • Precoding matrix index selection process for a MIMO receiver based on a near-ML detection, and apparatus for doing the same
    • 基于近ML检测的MIMO接收机的预编码矩阵索引选择过程,以及用于进行相同的装置
    • US08953702B2
    • 2015-02-10
    • US13995766
    • 2011-12-20
    • Sébastien AubertAndrea Ancora
    • Sébastien AubertAndrea Ancora
    • H04B7/02H04B7/04H04B7/06
    • H04B7/0456H04B7/0452H04B7/0639H04B7/0697
    • A process selects a Precoding Matrix Index (PMI) in a Multiple In Multiple Out (MIMO) receiver used in a wireless communications system including a base station communicating with User Equipments (UE) through a downlink and uplink channel. The base station applies a precoding on the transmit symbol vector based on a matrix selected from a set of predefined matrices and identified by a PMI index computed by the UE and forwarded to the base station via the uplink. The process includes estimating the MIMO channel matrix H of a given set of resources blocks comprising received symbol vectors, estimating the variance σ2 of the additive noise (AWGN), and computing for each particular matrix comprised within the set of predefined matrices a cost function representative of the orthogonality of the matrix MIMO channel matrix H. The process further includes comparing the values of the cost function and transmitting to the base station the index corresponding to the matrix corresponding to the best conditioned MIMO channel matrix according to the comparison of the values.
    • 一种过程在包括通过下行链路和上行链路信道与用户设备(UE)通信的基站的无线通信系统中使用的多输入多输出(MIMO)接收机中选择预编码矩阵索引(PMI)。 基站基于从一组预定义矩阵中选择的矩阵对发射符号向量应用预编码,并由UE计算出的PMI索引识别,并通过上行链路转发给基站。 该过程包括估计包括接收到的符号向量的给定资源块集合的MIMO信道矩阵H,估计加性噪声(AWGN)的方差和sgr 2,以及针对包含在该组预定义矩阵内的每个特定矩阵计算成本 表示矩阵MIMO信道矩阵H的正交性的函数。该过程进一步包括比较成本函数的值并根据比较的方式比较发送给基站与对应于最佳条件MIMO信道矩阵的矩阵相对应的索引 价值观。
    • 47. 发明申请
    • Digital Class-D Amplifier and Digital Signal Processing Method
    • 数字D类放大器和数字信号处理方法
    • US20140347128A1
    • 2014-11-27
    • US14358182
    • 2012-10-30
    • ST-Ericsson SA
    • Carlo CrippaRossella Bassoli
    • H03F3/185H03F3/217H03K7/08
    • H03F3/185H03F3/187H03F3/2175H03F3/45475H03F2200/165H03F2200/351H03F2200/78H03F2203/21112H03F2203/21196H03K7/08
    • A digital class D amplifier (10) is disclosed, comprising a pulse width modulator (PW Mod) comprising: a digital loop filter (Loop F) adapted to receive an input signal (x[n]) and a feedback signal (fb[n]), the digital loop filter (Loop_F) being adapted to process at a clock frequency (f_s) said input and feedback signals for providing as output a filtered digital signal (w[n]); a PWM conversion module (PW_CM) having an input (24) for receiving the filtered digital signal (w[n]) and having a first output (25) connected to the digital loop filter (Loop F), the PWM conversion module being adapted for processing the filtered digital signal (w[n]) and providing at said first output (25) the feedback signal (fb[n]). The PWM conversion module (PW_CM) comprises: a first comparator (CMP_N) adapted to compare the filtered digital signal (w[n]) with a first reference triangular waveform (VTn[n]) for providing as output a first PWM signal (yn[n]), the first reference triangular waveform having a frequency (f_osc) much lower than said clock frequency (f.s); a second comparator (CMP_P) adapted to compare the filtered digital signal (w[n]) with a second reference triangular waveform (VTp[n]) for providing as output a second PWM signal (yp[n]), the second reference triangular waveform (VTp[n]) being the inverse of the first triangular waveform (VTn[n]), said first (yn[n]) and second (yp[n]) PWM signals representing a differential output pulse width modulated signal (yn[n],yp[n]).
    • 公开了一种数字D类放大器(10),包括:脉冲宽度调制器(PW Mod),包括:适于接收输入信号(x [n])和反馈信号(fb [n])的数字环路滤波器 ]),所述数字环路滤波器(Loop_F)适于以时钟频率(f_s)处理所述输入和反馈信号,以提供经过滤波的数字信号(w [n])作为输出; PWM转换模块(PW_CM),其具有用于接收经过滤波的数字信号(w [n])并具有连接到数字环路滤波器(Loop F)的第一输出端25的输入端) 用于处理滤波后的数字信号(w [n])并在所述第一输出端提供反馈信号(fb [n])。 PWM转换模块(PW_CM)包括:第一比较器(CMP_N),适于将滤波后的数字信号(w [n])与第一参考三角波形(VTn [n])进行比较,以提供第一PWM信号 [n]),具有比所述时钟频率(fs)低得多的频率(f_osc)的第一参考三角波形; 适于将滤波后的数字信号(w [n])与第二参考三角波形(VTp [n])进行比较以用于提供第二PWM信号(yp [n])作为输出的第二比较器(CMP_P),第二参考三角形 波形(VTp [n])是第一三角波形(VTn [n])的倒数,所述第一(yn [n])和第二(yp [n])PWM信号表示差分输出脉宽调制信号 [n],yp [n])。
    • 48. 发明授权
    • Multi-standard transceiver architecture with common balun and mixer
    • 具有普通平衡 - 不平衡转换器和混频器的多标准收发器架构
    • US08892159B2
    • 2014-11-18
    • US13464070
    • 2012-05-04
    • Ramkishore GantiSanjeev RanganathanSrinath Sridharan
    • Ramkishore GantiSanjeev RanganathanSrinath Sridharan
    • H04W88/06H04B1/00H04B1/04H04B1/40
    • H04W88/06H04B1/0053H04B1/0458H04B1/0483H04B1/406
    • A multi-standard transceiver comprises a common balun, a controller, at least one first switch, and at least one second switch. The common balun comprises a primary coil and a secondary coil. The at least one first switch connects the primary coil of the balun to a first signal path associated with a first communication standard, or to a second signal path associated with a second communication standard responsive to a control signal provided by the controller. The at least one second switch connects the secondary coil of the balun to a first amplification path associated with the first communication standard, or to a second amplification path associated with the second communication standard responsive to a control signal provided by the controller. A common mixer is configured to provide upconverted signals to one of the signal paths depending on which communication standard has been selected.
    • 多标准收发器包括公共平衡 - 不平衡变压器,控制器,至少一个第一开关和至少一个第二开关。 普通的不平衡变压器包括初级线圈和次级线圈。 所述至少一个第一开关响应于由控制器提供的控制信号将平衡 - 不平衡变换器的初级线圈连接到与第一通信标准相关联的第一信号路径或者与第二通信标准相关联的第二信号路径。 响应于由控制器提供的控制信号,至少一个第二开关将平衡 - 不平衡变换器的次级线圈连接到与第一通信标准相关联的第一放大路径,或者连接到与第二通信标准相关联的第二放大路径。 公共混频器被配置为根据选择了哪个通信标准来向一个信号路径提供上变频信号。
    • 49. 发明授权
    • First significant path detection
    • 第一次重要的路径检测
    • US08891698B2
    • 2014-11-18
    • US12326762
    • 2008-12-02
    • Stefania SesiaGiuseppe MontalbanoPierre Demaj
    • Stefania SesiaGiuseppe MontalbanoPierre Demaj
    • H03D1/04H04B1/7115H04B1/7117
    • H04B1/7115H04B1/7117
    • A scheme determines the first significant path (FSP) of a received multipath signal, from data defining the relative delay and the amplitude of the individual signal paths occurring in a series of time frames. The scheme includes filtering the data to spread the signal paths, performing a persistence test between frames to reject spurious signal paths, combining the energy of the signal paths in a frame, applying a test to determine the time at which the combined energy satisfies a criterion, and selecting the FSP dependent on that time. The combined energy may be evaluated within a sliding window, and the position of the window within the frame determined that maximizes the combined energy. Alternatively, the combined energy may be evaluated as the cumulative energy through the frame, and the position determined at which the cumulative energy reaches a threshold.
    • 方案从定义在一系列时间帧中出现的各个信号路径的相对延迟和振幅的数据确定接收的多路径信号的第一有效路径(FSP)。 该方案包括对数据进行滤波以扩展信号路径,在帧之间执行持续测试以抑制寄生信号路径,组合帧中的信号路径的能量,应用测试来确定组合能量满足标准的时间 ,并根据该时间选择FSP。 可以在滑动窗口内评估组合的能量,并且确定框架内的窗口的位置使得组合能量最大化。 或者,可以将组合的能量评估为通过该帧的累积能量,以及确定累积能量达到阈值的位置。