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
    • 23. 发明申请
    • Method and apparatus for measuring the quality of speech transmissions that use speech compression
    • 用于测量使用语音压缩的语音传输的质量的方法和装置
    • US20060265211A1
    • 2006-11-23
    • US11134188
    • 2005-05-20
    • Ronald CanniffMichael KosekAlan MattenHarvey SiyPeng Zhang
    • Ronald CanniffMichael KosekAlan MattenHarvey SiyPeng Zhang
    • G10L11/06
    • G10L25/69
    • A method and apparatus are provided for determining the quality of a speech transmission, including temporal clipping, delay and jitter, using a carefully constructed test signal (300) and digital signal processing techniques. The test signal that is to be transmitted through a speech transmission system (100) is created (700). Then the test signal is transmitted through the speech transmission system such that the speech transmission system creates an output signal that corresponds to the input signal, as modified by the speech transmission system (702). The test signal includes multiple segments (500) of speech signals interleaved with periods of silence. The periods of silence vary in duration according to a predefined pattern. Each segment of speech signals includes multiple predefined speech samples or symbols (400, 402, 404, 406, 408, 410, 412, 414) interleaved with a plurality of silence gaps. The speech samples have a common period of duration, but the silence gaps do not. The output signal from the speech transmission system is preferably recorded (704) and analyzed to determine its quality, including temporal clipping (706). This analysis preferably includes comparing the output signal with a reference signal derived from the test signal using a cross correlation function. A processor (114) coupled to memory (116) records and analyzes the output signal.
    • 提供了一种使用仔细构造的测试信号(300)和数字信号处理技术来确定语音传输质量的方法和装置,包括时间限幅,延迟和抖动。 创建要通过语音传输系统(100)发送的测试信号(700)。 然后,通过语音传输系统发送测试信号,使得语音传输系统创建对应于由语音传输系统(702)修改的输入信号的输出信号。 测试信号包括与沉默周期交错的多个语音信号段(500)。 静音期间根据预定义的模式在持续时间内变化。 每个语音信号段包括与多个静音间隙交织的多个预定义语音样本或符号(400,402,404,406,408,410,412,414)。 言语样本有一个共同的持续时间,但是沉默的空白却没有。 来自语音传输系统的输出信号优选地被记录(704)并被分析以确定其质量,包括时间限幅(706)。 该分析优选地包括使用互相关函数将输出信号与从测试信号导出的参考信号进行比较。 耦合到存储器(116)的处理器(114)记录和分析输出信号。
    • 24. 发明申请
    • Method and apparatus for noise reduction
    • 减噪方法和装置
    • US20060217970A1
    • 2006-09-28
    • US11159843
    • 2005-06-22
    • Rafid SukkarRichard YouncePeng Zhang
    • Rafid SukkarRichard YouncePeng Zhang
    • G10L19/00
    • G10L19/173G10L21/0208
    • Noise Reduction (NR) is performed directly in a coded domain. A Coded Domain Noise Reduction (CD-NR) system modifies at least one parameter of a first encoded signal, resulting in corresponding modified parameter(s). The CD-NR system replaces the parameter(s) of the first encoded signal with the modified parameter(s), resulting in a second encoded signal which, in a decoded state, approximates a target signal that is a function of the first encoded signal in at least a partially decoded state. Thus, the first encoded signal does not have to go through intermediate decode/re-encode processes, which can degrade overall speech quality. Computational resources required for a complete re-encoding are not needed. Overall delay of the system is minimized. The CD-NR system can be used in any network in which signals are communicated in a coded domain, such as a Third Generation (3G) wireless network.
    • 降噪(NR)直接在编码域中执行。 编码域降噪(CD-NR)系统修改第一编码信号的至少一个参数,导致相应的修改参数。 CD-NR系统用修改的参数替换第一编码信号的参数,导致第二编码信号,其在解码状态下近似作为第一编码信号的函数的目标信号 至少部分解码状态。 因此,第一编码信号不必经历中间解码/重编码处理,这可能降低总体语音质量。 不需要完全重新编码所需的计算资源。 系统的整体延迟最小化。 CD-NR系统可以用于在诸如第三代(3G)无线网络的编码域中传送信号的任何网络中。
    • 25. 发明授权
    • Method for implementing data backup and recovery in computer hard disk
    • 在计算机硬盘中实现数据备份和恢复的方法
    • US07111203B2
    • 2006-09-19
    • US10392547
    • 2003-03-20
    • Jianfeng HuGang BaiPeng ZhangWenbing Yang
    • Jianfeng HuGang BaiPeng ZhangWenbing Yang
    • G06F11/00
    • G06F11/1417G06F11/1458G06F11/1469
    • Disclosed is a method for implementing data backup and recovery in a computer hard disk. The method includes the following steps. First, a computer motherboard is powered up and BIOS is booted through triggering of hardware. At the same time, information about a computer bootstrap mode is stored in a recording device, the information representing a mode to start a conventional operating system or a mode to start a backup/recovery function. Then BIOS reads the information about the computer bootstrap mode from the recording device and determines which mode it represents. If the information represents a mode to start a conventional operating system, the computer is booted with a preinstalled conventional operating system. If the information represents a mode to start a backup/recovery function, BIOS operates the protection partition of a hard disk, loads the kernel of an inserted operating system and performs the backup/recovery processing. According to the invention, the data backup/recovery function can be started directly through triggering hardware, and the loaded inserted operating system can be dynamically updated, so it is more convenient and flexible in application.
    • 公开了一种在计算机硬盘中实现数据备份和恢复的方法。 该方法包括以下步骤。 首先,计算机主板上电,BIOS通过触发硬件启动。 同时,关于计算机引导模式的信息被存储在记录设备中,该信息表示启动常规操作系统的模式或启动备份/恢复功能的模式。 然后,BIOS从记录设备读取有关计算机引导模式的信息,并确定其表示的模式。 如果信息表示启动常规操作系统的模式,则计算机将使用预先安装的常规操作系统启动。 如果信息表示启动备份/恢复功能的模式,则BIOS将操作硬盘的保护分区,加载插入的操作系统的内核并执行备份/恢复处理。 根据本发明,可以通过触发硬件直接启动数据备份/恢复功能,并且可以动态更新加载的插入操作系统,从而在应用中更方便灵活。
    • 27. 发明授权
    • System and methods for measuring quality of communications over packet networks
    • 通过分组网络测量通信质量的系统和方法
    • US06775240B1
    • 2004-08-10
    • US09650060
    • 2000-08-29
    • Peng ZhangTzuoh-Ying Su
    • Peng ZhangTzuoh-Ying Su
    • G01R3108
    • H04M3/2227H04L41/142H04L41/5003H04L43/022H04L43/067H04L43/0829H04L43/0852H04L43/18H04L47/10H04L47/11H04L47/283H04M7/006
    • A communications quality measurement system for use with packet and other networks comprises a test signal transmitter, a test signal receiver, and a test signal analyzer. A test transmitter is used to produce a series of test signals selected or engineered for measuring one or more desired Quality of Service or other performance parameters of a network path to be tested. A first copy of the test signal is transmitted via a reference path of known characteristics and with minimal impairments. A second copy of the test signal is transmitted via the network path to be tested. A test receiver receives and records the signals which were carried via the reference and test paths. A test signal analyzer compares the signals received over the reference and test paths and analyzes differences to determine Quality of Service or other parameters, such as Bearer Delay, Cell or Packet Loss, Echo Delay, and Echo Amplitude, some of which are directed to the particular impairments that are characteristic of packet networks. The test signal is preferably injected into and received from handset analog audio paths of originating and terminating subscriber terminals, so that the effects of nearly all network components will be measured.
    • 用于分组和其他网络的通信质量测量系统包括测试信号发射机,测试信号接收机和测试信号分析器。 测试发射机用于产生一系列测试信号,该测试信号被选择或设计用于测量要测试的网络路径的一个或多个所需服务质量或其他性能参数。 测试信号的第一拷贝通过已知特征的参考路径和最小的损伤传送。 测试信号的第二个副本通过要测试的网络路径发送。 测试接收器接收并记录通过参考和测试路径携带的信号。 测试信号分析仪比较在参考和测试路径上接收的信号,并分析差异以确定服务质量或其他参数,例如承载延迟,小区或分组丢失,回波延迟和回波振幅,其中一些指向 分组网络特征的特定损伤。 测试信号优选地被注入并从起始端和终端用户终端的手持机模拟音频路径接收,从而将测量几乎所有网络组件的影响。