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    • 54. 发明申请
    • AN INTELLIGENT UNIVERSAL CALIBRATION LOGIC IN EMBEDDED HIGH SPEED TRANSCEIVER (SERDES) APPLICATIONS
    • 嵌入式高速收发器(SERDES)应用中的智能通用校准逻辑
    • WO2005004378A1
    • 2005-01-13
    • PCT/US2004/009425
    • 2004-03-25
    • QQ TECHNOLOGY, INC.LIN, Taylor, FengchengXU, Mao
    • LIN, Taylor, FengchengXU, Mao
    • H04L7/00
    • H04L1/0061H04B17/11H04B17/20H04J3/062
    • The present invention discloses a bundled transceiver link recovery process and algorithm and calibration control logic that can be universally implemented in any different types of embedded chipset designs and application for high-speed data communication systems. The calibration logic is capable of performing the calibrations during different stages of system operations. Specifically, the calibration logic of this invention is provided to satisfy the power-on-self calibration (105) requirements. The calibration logic is further provided to perform bundled SERDES (150) alignments, to correct the +/-100ppm frequency difference and to start the calibration process automatically upon detection an error (140). The calibration operations can be universally implemented in different embedded chipset configuration suitable for different data rates and different switch fabric-SERDES arrangements to assure reliable and accurate data transmissions are achieved.
    • 本发明公开了一种捆绑的收发器链路恢复过程和算法和校准控制逻辑,可以在任何不同类型的嵌入式芯片组设计和高速数据通信系统的应用中普遍实现。 校准逻辑能够在系统操作的不同阶段执行校准。 具体地,本发明的校准逻辑被提供以满足上电自校准(105)要求。 进一步提供校准逻辑以执行捆绑的SERDES(150)对准,以校正+/- 100ppm的频率差,并且在检测到错误时自动启动校准过程(140)。 校准操作可以在不同的嵌入式芯片组配置中普遍实现,适用于不同的数据速率和不同的交换结构SERDES布置,以确保实现可靠和准确的数据传输。
    • 56. 发明申请
    • DATA TIME DIFFERENCE ABSORBING CIRCUIT, AND DATA RECEVING METHOD AND DEVICE
    • 数据时差差吸收电路,数据恢复方法和装置
    • WO02058316A1
    • 2002-07-25
    • PCT/JP2002/000218
    • 2002-01-16
    • H04B10/114H04J3/06H04J14/02H04N11/24H04L7/00G11B20/10H04N7/24
    • H04B10/1149H04J3/0602H04J3/062H04J14/0226H04J14/0232H04J14/0246H04J14/0247H04J14/025H04J14/0252H04J14/0282H04N11/004
    • A data time difference absorbing circuit comprising memories (36, 37) where first digital data including first timing reference data and second digital data including second timing reference data are stored and read out, respectively, timing data extracting section (41) for extracting the first reference data included in data read out of the memory (36) and the second reference data included in data read out of the memory (37), a phase difference determining section (42) for determining the mutual phase difference between the extracted first and second reference data, and a control signal generating section (40) for controlling the read timing at which data is read out of the memory (36) and the read timing at which data is read out of the memory (37) according to the mutual phase difference measured by the phase difference determining section (42) so as to maintain the mutual phase difference substantially at zero.
    • 一种包括存储器(36,37)的数据时差吸收电路,分别存储并读出包括第一定时参考数据的第一数字数据和包括第二定时参考数据的第二数字数据的存储器,分别用于提取第一定时参考数据 包括在从存储器(36)读出的数据中的参考数据和包含在从存储器(37)读出的数据中的第二参考数据,相位差确定部分(42),用于确定提取的第一和第二 参考数据和控制信号生成部分(40),用于根据相互相位控制从存储器(36)读出数据的读取定时和从存储器(37)读出数据的读取定时 由相位差确定部分(42)测量的差值使得相互相位差基本维持在零。