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    Zero delay reduced memory GPS PRN code interpolation
    1.
    发明授权
    Zero delay reduced memory GPS PRN code interpolation 失效
    零延迟减少内存GPS PRN代码插值

    公开(公告)号：US08675712B1

    公开(公告)日：2014-03-18

    申请号：US13080955

    申请日：2011-04-06

    申请人： Xiangdong Jin ,  Mao Yu ,  Jianwei Bei ,  Xiaotao Xu

    发明人： Xiangdong Jin ,  Mao Yu ,  Jianwei Bei ,  Xiaotao Xu

    IPC分类号： H04B1/00

    CPC分类号： G01S19/254 ,  G01S19/30

    摘要： In accordance with the teachings described herein, system and methods are provided for a GPS PRN code interpolation scheme with a reduced memory requirement. An example GPS receiver system may include a memory, a local PRN code generator, and an interpolator. The memory may be used to store GPS PRN code received from a global positioning satellite. The local PRN code generator generates a replica PRN code having a repeating code that includes at least a first epoch and a second epoch. The interpolator determines an offset point in the first epoch of replica PRN code and interpolates the replica PRN code at a predetermined sample rate to generate an interpolated replica PRN code for use in correlating with the GPS PRN code.

    摘要翻译： 根据本文所述的教导，为具有减少的存储器要求的GPS PRN码插值方案提供了系统和方法。 示例性GPS接收机系统可以包括存储器，本地PRN码发生器和内插器。 存储器可以用于存储从全球定位卫星接收的GPS PRN码。 本地PRN代码生成器生成具有至少包括第一纪元和第二纪元的重复代码的副本PRN代码。 内插器确定复制PRN码的第一纪元中的偏移点，并以预定采样率内插副本PRN码，以产生用于与GPS PRN码相关的内插副本PRN码。

    Timing error detector for adverse channel conditions
    2.
    发明授权
    Timing error detector for adverse channel conditions 有权
    定时误差检测器，用于不利的信道条件

    公开(公告)号：US09201148B1

    公开(公告)日：2015-12-01

    申请号：US12785822

    申请日：2010-05-24

    申请人： Yihong Qi ,  Jianwei Bei ,  Xiaotao Xu ,  Victor Lin

    发明人： Yihong Qi ,  Jianwei Bei ,  Xiaotao Xu ,  Victor Lin

    IPC分类号： H04B1/00 ,  G01S19/24 ,  H04B1/7075

    CPC分类号： G01S19/24 ,  G01S19/30 ,  G01S19/37 ,  H04B1/7075 ,  H04B2201/70715

    摘要： In a receive system, a plurality of correlators correlate a received signal with a plurality of delayed versions of a reference signal to generate a plurality of correlator outputs. A timing error detector estimates an optimal timing based on a set of correlator outputs, and determines a timing error based on (i) the estimated optimal correlation point and (ii) an existing timing, such that the timing error is hard or soft limited between two positive thresholds and two negative thresholds.

    摘要翻译： 在接收系统中，多个相关器使接收信号与参考信号的多个延迟版本相关，以产生多个相关器输出。 定时误差检测器基于一组相关器输出来估计最佳定时，并且基于（i）估计的最佳相关点和（ii）现有定时来确定定时误差，使得定时误差是硬的或软限于 两个正阈值和两个负阈值。

    Method for eliminating multiple modulation and demodulation of Voice band Data communication over packet and low data rate digital networks
    3.
    发明授权
    Method for eliminating multiple modulation and demodulation of Voice band Data communication over packet and low data rate digital networks 有权
    通过分组和低数据速率数字网络消除语音频带数据通信的多重调制和解调的方法

    公开(公告)号：US07167469B2

    公开(公告)日：2007-01-23

    申请号：US10080219

    申请日：2002-02-21

    申请人： Mehrdad Abrishami ,  Jianwei Bei

    发明人： Mehrdad Abrishami ,  Jianwei Bei

    IPC分类号： H04L12/66

    CPC分类号： H04N1/00312 ,  H04L47/10 ,  H04N1/00209 ,  H04N1/00281 ,  H04N1/324 ,  H04N1/3333 ,  H04N1/33353 ,  H04N2201/0015 ,  H04N2201/0024 ,  H04N2201/3298 ,  H04N2201/3335

    摘要： A method of processing Voice band Data in a communication path in a telecommunication network. The communication path consists of a plurality of Voice band Data relay gateways, including a first Voice band Data relay gateway, a last Voice band Data relay gateway, and at least one Voice band Data relay gateway between the first and last Voice band Data relay gateways. The method includes steps of detecting the Voice band Data relay gateway, and disabling the at least one Voice band Data relay gateway between the first and last Voice band Data relay gateways, whereby the at least one Voice band Data relay gateway between the first and last Voice band Data relay gateways does not encode and decode the Voice band Data.

    摘要翻译： 一种在电信网络的通信路径中处理语音频带数据的方法。 通信路径包括多个语音频带数据中继网关，包括第一语音频带数据中继网关，最后一个语音频带数据中继网关以及第一和最后一个语音频带数据中继网关之间的至少一个语音频带数据中继网关 。 该方法包括检测语音频带数据中继网关的步骤，以及禁用第一和最后一个语音频带数据中继网关之间的至少一个语音频带数据中继网关，由此至少一个第一和最后一个语音频带数据中继网关 语音数据中继网关不对语音数据进行编码和解码。

    Methods and procedures to dynamically adjust processor frequency
    4.
    发明授权
    Methods and procedures to dynamically adjust processor frequency 有权
    动态调整处理器频率的方法和程序

    公开(公告)号：US08869152B1

    公开(公告)日：2014-10-21

    申请号：US11967768

    申请日：2007-12-31

    申请人： Mehrdad Abrishami ,  Jianwei Bei ,  Benjamin Beasley

    发明人： Mehrdad Abrishami ,  Jianwei Bei ,  Benjamin Beasley

    IPC分类号： G06F9/46 ,  G06F1/00 ,  G06F1/32

    CPC分类号： G06F1/324 ,  G06F1/3206 ,  Y02D10/126 ,  Y02D10/17

    摘要： A method for altering an operating frequency of a processor. The method includes monitoring a real-time performance indicator of a system, and determining a desired frequency in response to the indicator. The indicator may be an amount of idle time of a processor of the system. The method also includes selectively altering an operating frequency of the processor in response to a comparison of the desired frequency and the operating frequency, including increasing the operating frequency in response to the desired frequency being greater than the operating frequency, and decreasing the operating frequency only in response to the desired frequency being less than the operating frequency by more than a predetermined value.

    摘要翻译： 一种用于改变处理器的工作频率的方法。 该方法包括监视系统的实时性能指标，以及响应于指示符确定期望的频率。 指示器可以是系统的处理器的空闲时间量。 该方法还包括响应于期望频率和工作频率的比较而选择性地改变处理器的工作频率，包括响应于期望频率大于工作频率而增加工作频率，并仅降低工作频率 响应于期望的频率小于操作频率大于预定值。

    End-to-end session without signaling protocol
    6.
    发明授权
    End-to-end session without signaling protocol 有权
    无信令协议的端到端会话

    公开(公告)号：US08817967B1

    公开(公告)日：2014-08-26

    申请号：US13608710

    申请日：2012-09-10

    申请人： Mehrdad Abrishami ,  Jianwei Bei ,  Ganesh Pasupathy ,  Ran Katzor

    发明人： Mehrdad Abrishami ,  Jianwei Bei ,  Ganesh Pasupathy ,  Ran Katzor

    IPC分类号： H04M7/00 ,  H04M11/00 ,  H04M1/56 ,  H04M15/06 ,  H04L12/66 ,  H04L12/28 ,  H04L29/08

    CPC分类号： H04M7/1205 ,  H04L1/22 ,  H04W24/00 ,  H04W28/18 ,  H04W76/10 ,  H04W88/08

    摘要： A base station of a cordless telephone includes a transceiver, a control module, a connection handler, and a media handler. The transceiver wirelessly communicates with a handset. While the handset is operating in a standby mode, the transceiver transmits a signal to instruct the handset to exit the standby mode. The control module establishes a permanent virtual circuit with the handset that includes a predetermined user datagram protocol (UDP) port or a negotiated UDP port. The control module negotiates, with the handset to determine a feature subset of the handset and transmits packets to the handset via the permanent virtual circuit. The packets are selected based on the feature subset of the handset. The connection handler is configured to establish a switched virtual circuit with an endpoint device via a communications channel. The media handler is configured to convert media packets into first and second digital audio compression formats.

    摘要翻译： 无绳电话的基站包括收发器，控制模块，连接处理器和媒体处理器。 收发器与手机无线通信。 当手机正在待机模式时，收发器发送信号以指示手机退出待机模式。 控制模块与包括预定的用户数据报协议（UDP）端口或协商的UDP端口的手持机建立永久的虚拟电路。 控制模块与手机协商确定手机的特征子集，并通过永久虚拟电路将数据包发送到手机。 基于手机的特征子集来选择分组。 连接处理器被配置为经由通信信道与端点设备建立切换的虚拟电路。 媒体处理程序被配置为将媒体分组转换成第一和第二数字音频压缩格式。

    End-to-end session without signaling protocol
    7.
    发明授权
    End-to-end session without signaling protocol 有权
    无信令协议的端到端会话

    公开(公告)号：US08265255B1

    公开(公告)日：2012-09-11

    申请号：US11247941

    申请日：2005-10-10

    申请人： Mehrdad Abrishami ,  Jianwei Bei ,  Ganesh Pasupathy ,  Ran Katzur

    发明人： Mehrdad Abrishami ,  Jianwei Bei ,  Ganesh Pasupathy ,  Ran Katzur

    IPC分类号： H04M7/00

    CPC分类号： H04M7/1205 ,  H04L1/22 ,  H04W24/00 ,  H04W28/18 ,  H04W76/10 ,  H04W88/08

    摘要： An endpoint system for media communication comprises a resource-limited device and a base station. The resource-limited device at least one of receives and outputs at least one of audio and graphic information. The base station communicates media and control packets with the resource-limited device via a permanent virtual circuit, establishes a switched virtual circuit with an endpoint device via a communications channel, and translates media packets between the permanent virtual circuit and the switched virtual circuit.

    摘要翻译： 用于媒体通信的端点系统包括资源受限设备和基站。 所述资源受限设备至少一个接收和输出音频和图形信息中的至少一个。 基站通过永久虚拟电路与资源受限设备通信媒体和控制分组，经由通信信道与终端设备建立交换虚拟电路，并在永久虚拟电路和交换虚拟电路之间转换媒体分组。