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    • 2. 发明授权
    • Synchronizing multiple system clocks
    • 同步多个系统时钟
    • US08059688B2
    • 2011-11-15
    • US12724834
    • 2010-03-16
    • Kevin StantonFrank Hady
    • Kevin StantonFrank Hady
    • H04J3/06G06F1/12
    • H04J3/0638H04J3/0632H04J3/0667
    • Techniques are disclosed for synchronizing multiple clock sources of a system, and may include: determining time of a first clock at a first and second time instants; determining time of a second clock at a third time instant occurring between the first and second time instants, and a fourth time instant occurring after the second time instant; and determining a clock offset between the first and second clocks based on the determined times. The first and/or second clocks may be adjusted based on the clock offset to synchronize clock operation. This adjusting can be used, for instance, to synchronize operation of an audio and/or video component operating according to the first clock with an audio and/or video component operating according to the second clock. The techniques may further include determining if the clock offset is valid (e.g., based on detection of perturbing events or difference between a clock's times).
    • 公开了用于同步系统的多个时钟源的技术,并且可以包括:在第一和第二时刻确定第一时钟的时间; 确定在第一和第二时刻之间发生的第三时刻的第二时钟的时间,以及在第二时刻之后发生的第四时刻; 以及基于所确定的时间确定所述第一和第二时钟之间的时钟偏移。 可以基于时钟偏移来调整第一和/或第二时钟以同步时钟操作。 该调整可以用于例如将根据第一时钟操作的音频和/或视频组件的操作与根据第二时钟操作的音频和/或视频组件同步操作。 这些技术可以进一步包括确定时钟偏移是否有效(例如,基于扰动事件的检测或时钟的时间之间的差异)。
    • 3. 发明授权
    • Methods and apparatus for synchronizing networked audio devices
    • 用于同步网络音频设备的方法和装置
    • US07680154B2
    • 2010-03-16
    • US11967301
    • 2007-12-31
    • Kevin StantonFrank Hady
    • Kevin StantonFrank Hady
    • H04J3/06
    • H04J3/0638H04J3/0632H04J3/0667
    • A method includes determining a network counter value indicative of a network clock time of a system at a first time instant and a second time instant occurring later in time than the first time instant. The method further includes determining an audio counter value indicative of an audio clock time of the system at a third time instant occurring the first and second time instants and a fourth time instant occurring later in time than the second time instant. The method further includes determining an offset based upon the determined network counter values and the audio counter values. The method further includes adjusting the audio clock time based upon the determined offset to synchronize operation of at least one audio component operating according to the audio clock with at least one audio component operating according to the network clock. An associated system is also disclosed.
    • 一种方法包括在第一时刻确定指示系统的网络时钟时间的网络计数器值,以及比第一时刻晚于时间发生的第二时刻。 该方法还包括:确定在第三时刻发生指示系统的音频时钟时间的音频计数器值,发生第一时刻和第二时刻以及比第二时刻晚于时间发生的第四时刻。 该方法还包括基于所确定的网络计数器值和音频计数器值来确定偏移量。 该方法还包括基于所确定的偏移来调整音频时钟时间,以使根据音频时钟操作的至少一个音频分量与根据网络时钟操作的至少一个音频分量同步操作。 还公开了一种相关系统。
    • 6. 发明授权
    • Synchronizing multiple system clocks
    • 同步多个系统时钟
    • US08934505B2
    • 2015-01-13
    • US13288498
    • 2011-11-03
    • Kevin StantonFrank Hady
    • Kevin StantonFrank Hady
    • H04J3/06
    • H04J3/0638H04J3/0632H04J3/0667
    • Techniques are disclosed for synchronizing multiple clock sources of a system, and may include: determining time of a first clock at a first and second time instants; determining time of a second clock at a third time instant occurring between the first and second time instants, and a fourth time instant occurring after the second time instant; and determining a clock offset between the first and second clocks based on the determined times. The first and/or second clocks may be adjusted based on the clock offset to synchronize clock operation. This adjusting can be used, for instance, to synchronize operation of an audio and/or video component operating according to the first clock with an audio and/or video component operating according to the second clock. The techniques may further include determining if the clock offset is valid (e.g., based on detection of perturbing events or difference between a clock's times).
    • 公开了用于同步系统的多个时钟源的技术,并且可以包括:在第一和第二时刻确定第一时钟的时间; 确定在第一和第二时刻之间发生的第三时刻的第二时钟的时间,以及在第二时刻之后发生的第四时刻; 以及基于所确定的时间确定所述第一和第二时钟之间的时钟偏移。 可以基于时钟偏移来调整第一和/或第二时钟以同步时钟操作。 该调整可以用于例如将根据第一时钟操作的音频和/或视频组件的操作与根据第二时钟操作的音频和/或视频组件同步操作。 这些技术可以进一步包括确定时钟偏移是否有效(例如,基于扰动事件的检测或时钟的时间之间的差异)。
    • 7. 发明申请
    • SYNCHRONIZING MULTIPLE SYSTEM CLOCKS
    • 同步多个系统时钟
    • US20120170597A1
    • 2012-07-05
    • US13288498
    • 2011-11-03
    • Kevin StantonFrank Hady
    • Kevin StantonFrank Hady
    • H04J3/06
    • H04J3/0638H04J3/0632H04J3/0667
    • Techniques are disclosed for synchronizing multiple clock sources of a system, and may include: determining time of a first clock at a first and second time instants; determining time of a second clock at a third time instant occurring between the first and second time instants, and a fourth time instant occurring after the second time instant; and determining a clock offset between the first and second clocks based on the determined times. The first and/or second clocks may be adjusted based on the clock offset to synchronize clock operation. This adjusting can be used, for instance, to synchronize operation of an audio and/or video component operating according to the first clock with an audio and/or video component operating according to the second clock. The techniques may further include determining if the clock offset is valid (e.g., based on detection of perturbing events or difference between a clock's times).
    • 公开了用于同步系统的多个时钟源的技术,并且可以包括:在第一和第二时刻确定第一时钟的时间; 确定在第一和第二时刻之间发生的第三时刻的第二时钟的时间,以及在第二时刻之后发生的第四时刻; 以及基于所确定的时间确定所述第一和第二时钟之间的时钟偏移。 可以基于时钟偏移来调整第一和/或第二时钟以同步时钟操作。 该调整可以用于例如将根据第一时钟操作的音频和/或视频组件的操作与根据第二时钟操作的音频和/或视频组件同步操作。 这些技术可以进一步包括确定时钟偏移是否有效(例如,基于扰动事件的检测或时钟的时间之间的差异)。
    • 8. 发明申请
    • SYNCHRONIZING MULTIPLE SYSTEM CLOCKS
    • 同步多个系统时钟
    • US20100174830A1
    • 2010-07-08
    • US12724834
    • 2010-03-16
    • Kevin StantonFrank Hady
    • Kevin StantonFrank Hady
    • G06F1/12
    • H04J3/0638H04J3/0632H04J3/0667
    • Techniques are disclosed for synchronizing multiple clock sources of a system, and may include: determining time of a first clock at a first and second time instants; determining time of a second clock at a third time instant occurring between the first and second time instants, and a fourth time instant occurring after the second time instant; and determining a clock offset between the first and second clocks based on the determined times. The first and/or second clocks may be adjusted based on the clock offset to synchronize clock operation. This adjusting can be used, for instance, to synchronize operation of an audio and/or video component operating according to the first clock with an audio and/or video component operating according to the second clock. The techniques may further include determining if the clock offset is valid (e.g., based on detection of perturbing events or difference between a clock's times).
    • 公开了用于同步系统的多个时钟源的技术,并且可以包括:在第一和第二时刻确定第一时钟的时间; 确定在第一和第二时刻之间发生的第三时刻的第二时钟的时间,以及在第二时刻之后发生的第四时刻; 以及基于所确定的时间确定所述第一和第二时钟之间的时钟偏移。 可以基于时钟偏移来调整第一和/或第二时钟以同步时钟操作。 该调整可以用于例如将根据第一时钟操作的音频和/或视频组件的操作与根据第二时钟操作的音频和/或视频组件同步操作。 这些技术可以进一步包括确定时钟偏移是否有效(例如,基于扰动事件的检测或时钟的时间之间的差异)。