System and Method for AV Sync Correction by Remote Sensing
    1.
    发明申请
    System and Method for AV Sync Correction by Remote Sensing 审中-公开
    通过遥感进行AV同步校正的系统和方法

    公开(公告)号:US20160316108A1

    公开(公告)日:2016-10-27

    申请号:US15203592

    申请日:2016-07-06

    Abstract: Method and system for measuring audio video synchronization. This is done by having a remote sensing station to measure and process the audio and images from a multimedia terminal that displays a television program. The remote sensing station uses an audio sensor to sense the audio signal from the multimedia station and an image sensor to sense the images displayed on the multimedia station. An AV processing circuit in the remote sensing terminal processes the signals from the audio sensor and the sensed images. The delay information is then communicated to the multimedia station to adjust the AV synchronization.

    Abstract translation: 音频视频同步测量方法和系统。 这通过使遥感站测量和处理来自显示电视节目的多媒体终端的音频和图像来完成。 遥感站使用音频传感器来感测来自多媒体站的音频信号和图像传感器来感测多媒体站上显示的图像。 遥感终端中的AV处理电路处理来自音频传感器和感测图像的信号。 然后将延迟信息传送到多媒体站以调整AV同步。

    AV Timing Measurement and Correction for Digital Television

    公开(公告)号:US20160316109A1

    公开(公告)日:2016-10-27

    申请号:US15200654

    申请日:2016-07-01

    CPC classification number: H04N5/067 H04N5/06 H04N5/073 H04N21/4307 H04S5/005

    Abstract: An invention for measuring, maintaining and correcting synchronization between signals which suffer varying relative delays during transmission and/or storage is shown. The present invention teaches measuring the relative delay between a plurality of signals which have suffered differing delays due to transmission, storage or other processing. The preferred embodiment of the invention includes the use of a marker which is generated in response to a second signal and combined with a first signal in a manner which ensures that the marker will not be lost in the expected processing of the first signal. Subsequently a first delayed marker is generated in response to the marker associated with or recovered from the first signal, and a second delayed marker is generated from the second signal. The first delayed marker and second delayed marker are compared to determine a measure of the relative timing or delay between said first signal and said second signal at said subsequent time.

    AV timing measurement and correction for digital television

    公开(公告)号:US09386192B2

    公开(公告)日:2016-07-05

    申请号:US14522494

    申请日:2014-10-23

    CPC classification number: H04N5/067 H04N5/06 H04N5/073 H04N21/4307 H04S5/005

    Abstract: An invention for measuring, maintaining and correcting synchronization between signals which suffer varying relative delays during transmission and/or storage is shown. The present invention teaches measuring the relative delay between a plurality of signals which have suffered differing delays due to transmission, storage or other processing. The preferred embodiment of the invention includes the use of a marker which is generated in response to a second signal and combined with a first signal in a manner which ensures that the marker will not be lost in the expected processing of the first signal. Subsequently a first delayed marker is generated in response to the marker associated with or recovered from the first signal, and a second delayed marker is generated from the second signal. The first delayed marker and second delayed marker are compared to determine a measure of the relative timing or delay between said first signal and said second signal at said subsequent time.

    AV timing measurement and correction for digital television
    4.
    发明授权
    AV timing measurement and correction for digital television 有权
    数字电视的AV定时测量和校正

    公开(公告)号:US09071723B2

    公开(公告)日:2015-06-30

    申请号:US14170786

    申请日:2014-02-03

    CPC classification number: H04N5/067 H04N5/06 H04N5/073 H04N21/4307 H04S5/005

    Abstract: An invention for measuring, maintaining and correcting synchronization between signals which suffer varying relative delays during transmission and/or storage is shown. The present invention teaches measuring the relative delay between a plurality of signals which have suffered differing delays due to transmission, storage or other processing. The preferred embodiment of the invention includes the use of a marker which is generated in response to a second signal and combined with a first signal in a manner which ensures that the marker will not be lost in the expected processing of the first signal. Subsequently a first delayed marker is generated in response to the marker associated with or recovered from the first signal, and a second delayed marker is generated from the second signal. The first delayed marker and second delayed marker are compared to determine a measure of the relative timing or delay between said first signal and said second signal at said subsequent time.

    Abstract translation: 示出了用于测量,维持和校正在传输和/或存储期间遭受变化的相对延迟的信号之间的同步的发明。 本发明教导了测量由于传输,存储或其他处理而遭受不同延迟的多个信号之间的相对延迟。 本发明的优选实施例包括使用响应于第二信号而产生的标记,并以确保在第一信号的预期处理中标记不会丢失的方式与第一信号组合。 随后响应于与第一信号相关联或从第一信号恢复的标记产生第一延迟标记,并且从第二信号产生第二延迟标记。 比较第一延迟标记和第二延迟标记,以确定在所述后续时间期间所述第一信号和所述第二信号之间的相对定时或延迟的测量。

    Delay tracker
    5.
    发明授权
    Delay tracker 失效
    延迟追踪器

    公开(公告)号:US06351281B1

    公开(公告)日:2002-02-26

    申请号:US09119524

    申请日:1998-07-21

    CPC classification number: H04N5/073

    Abstract: A delay tracker utilizes a special code on the tracked signal in order to recognize such signal and ascertain any delays associated therewith.

    Abstract translation: 延迟跟踪器利用跟踪信号上的特殊码来识别这种信号并确定与之相关的任何延迟。

    Pulse detector for ascertaining the processing delay of a signal
    6.
    发明授权
    Pulse detector for ascertaining the processing delay of a signal 失效
    用于确定信号的处理延迟的脉冲检测器

    公开(公告)号:US06330033B1

    公开(公告)日:2001-12-11

    申请号:US08620126

    申请日:1996-03-21

    CPC classification number: H04N5/073

    Abstract: A delay tracker for a signal processing system, which delay tracker utilizes a special code or pulse on the active portion of the tracked signal with the system including a pulse detector later in the system subsequently recognizing the special code or pulse in order to identify such signal and ascertain any delays associated with the signal for use by the system including possible resynchronization of the tracked signal with another signal associated therewith.

    Abstract translation: 用于信号处理系统的延迟跟踪器,该延迟跟踪器利用该跟踪信号的有效部分上的特殊代码或脉冲,该系统包括稍后在该系统中的脉冲检测器,随后识别该特殊代码或脉冲以识别该信号 并且确定与由系统使用的信号相关联的任何延迟,包括跟踪的信号与与其相关联的另一个信号的可能的重新同步。

    AV timing measurement and correction for digital television

    公开(公告)号:US09692945B2

    公开(公告)日:2017-06-27

    申请号:US15200654

    申请日:2016-07-01

    CPC classification number: H04N5/067 H04N5/06 H04N5/073 H04N21/4307 H04S5/005

    Abstract: An invention for measuring, maintaining and correcting synchronization between signals which suffer varying relative delays during transmission and/or storage is shown. The present invention teaches measuring the relative delay between a plurality of signals which have suffered differing delays due to transmission, storage or other processing. The preferred embodiment of the invention includes the use of a marker which is generated in response to a second signal and combined with a first signal in a manner which ensures that the marker will not be lost in the expected processing of the first signal. Subsequently a first delayed marker is generated in response to the marker associated with or recovered from the first signal, and a second delayed marker is generated from the second signal. The first delayed marker and second delayed marker are compared to determine a measure of the relative timing or delay between said first signal and said second signal at said subsequent time.

    Phase shifting apparatus and method with frequency multiplication
    9.
    发明授权
    Phase shifting apparatus and method with frequency multiplication 失效
    相移装置及其倍频方法

    公开(公告)号:US5675277A

    公开(公告)日:1997-10-07

    申请号:US609559

    申请日:1996-05-23

    CPC classification number: H03H11/20 H03H7/20

    Abstract: The present invention provides a phase shifting apparatus and method. The phase shifting apparatus comprises a signal generator and a converting device. An input signal is converted by the offset signals from the signal generator, thereby producing an output signal with the same frequency as that of the input signal. The phase of the output signal is determined by the difference of the offset signals applied to the converting device. In particular, when two offset signals are in quadrature, the output signal becomes in quadrature with the input signal. When the two offset signals have the same phase, the output signal has the same phase as that of the input signal. Preferably, the converting device includes two cascaded offset means, each having a multiplier and a filter coupling to the multiplier. A plurality of converting means may be coupled in parallel to the signal generator. On the basis of the offset signals applied to respective converting means, the phase shifting apparatus provides a plurality of outputs having different phase shifts. The frequency range of the input signal is very width and the phase shifting apparatus may operate in analog and digital forms.

    Abstract translation: 本发明提供一种相移装置和方法。 相移装置包括信号发生器和转换装置。 输入信号由来自信号发生器的偏移信号转换,从而产生与输入信号频率相同的输出信号。 输出信号的相位由施加到转换装置的偏移信号的差确定。 特别地,当两个偏移信号为正交时,输出信号与输入信号成正交。 当两个偏移信号具有相同的相位时,输出信号具有与输入信号相同的相位。 优选地,转换装置包括两个级联偏移装置,每个具有耦合到乘法器的乘法器和滤波器。 多个转换装置可以与信号发生器并联耦合。 基于施加到各个转换装置的偏移信号,相移装置提供具有不同相移的多个输出。 输入信号的频率范围非常宽,相移装置可以以模拟和数字形式工作。

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