Networked wireless communications device programmed to identify and eliminate probable multipath errors so as to enhance accuracy in correcting sleep clock for thermally induced errors
    1.
    发明专利
    Networked wireless communications device programmed to identify and eliminate probable multipath errors so as to enhance accuracy in correcting sleep clock for thermally induced errors 有权
    网络无线通信设备编程识别和消除可疑的多路径错误,以增强校正休眠时间的精度以获得热导致的错误

    公开(公告)号:JP2010213315A

    公开(公告)日:2010-09-24

    申请号:JP2010096032

    申请日:2010-04-19

    CPC classification number: H04W52/0287 Y02D70/00

    Abstract: PROBLEM TO BE SOLVED: To correct a sleep clock operating in a wireless environment.
    SOLUTION: A time reference output by a wireless communication network is investigated and compared with output of a sleep clock and a current error in a sleep clock frequency is computed. If the current error does not exceed a predetermined threshold, the current error is utilized as a corrected error. If the current error exceeds the predetermined threshold, the restricted current error is utilized as a corrected error. Input including the corrected error is utilized to estimate the frequency of the sleep clock. When the next wake-up time is scheduled, the estimate in the frequency of the sleep clock is utilized.
    COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:纠正在无线环境中操作的睡眠时钟。 解决方案:调查由无线通信网络输出的时间参考,并将其与休眠时钟的输出进行比较,并计算睡眠时钟频率中的当前误差。 如果当前误差不超过预定阈值,则将当前误差用作校正误差。 如果当前误差超过预定阈值,则将受限电流误差用作校正误差。 使用包括校正误差的输入来估计睡眠时钟的频率。 当调度下一个唤醒时间时,利用睡眠时钟频率的估计。 版权所有(C)2010,JPO&INPIT

    2.
    发明专利
    未知

    公开(公告)号:BRPI0509584A

    公开(公告)日:2007-10-09

    申请号:BRPI0509584

    申请日:2005-03-29

    Applicant: QUALCOMM INC

    Abstract: A method for correcting operation of the sleep oscillator ( 116 ) of a wireless communications device ( 100 ). Sleep oscillator frequency is estimated ( 412 ) so as to compensate for estimated temperature induced errors. In estimating temperature induced errors, errors ( 504 ) in sleep oscillator frequency are treated as being temperature induced errors ( 522 ), but probable multipath errors are bounded ( 410, 520 ) to predetermined sleep clock error maxima ( 602 ) corresponding to sleep duration over which the error occurred.

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