Apparatus and method for tuning an optical interferometer
    1.
    发明授权
    Apparatus and method for tuning an optical interferometer 有权
    用于调整光学干涉仪的装置和方法

    公开(公告)号:US06396605B1

    公开(公告)日:2002-05-28

    申请号:US09236981

    申请日:1999-01-26

    IPC分类号: H04B1000

    CPC分类号: H04B10/60

    摘要: An apparatus using an optical signal for actively tuning an optical interferometer without introducing any dither in its optical path length. The apparatus comprises a dither generator, means applying a portion of the dithering signal to the optical signal so as to provide an optical signal having a varying wavelength, an optical interferometer having a path length that is tunable and that responds to the optical signal having a varying wavelength and a path length adjustment drive signal and develops a first interference pattern when said path length is a prescribed value and a second interference pattern when the optical path length is changed, photodetector means responsive to the optical interference pattern and operative to develop an electronic feedback signal when the first interference pattern is not present, and a synchronous detection lock-in amplifier that is responsive to a portion of the dithering signal and the electronic feedback signal and operative to produce the optical path length adjustment drive signal. The drive signal changes the optical path length until it reaches the prescribed value, thereby producing the first interference pattern and tuning the optical interferometer. also a method of using an optical signal for tuning an optical interferometer by adjusting its optical path length without introducing dither into the path length is invented.

    摘要翻译: 一种使用光学信号的装置来主动调谐光学干涉仪,而不会在其光程长度上引入任何抖动。 该装置包括抖动发生器,将抖动信号的一部分应用于光信号,以便提供具有变化波长的光信号;光干涉仪,具有可调谐的路径长度,并响应于具有 变化的波长和路径长度调节驱动信号,并且当所述路径长度是规定值时产生第一干涉图案,并且当光路长度改变时产生第二干涉图案,光电检测器装置响应于光学干涉图案并且可操作地开发电子 当不存在第一干涉图案时的反馈信号;以及同步检测锁定放大器,其响应抖动信号和电子反馈信号的一部分并且可操作以产生光程长度调节驱动信号。 驱动信号改变光路长度直到其达到规定值,从而产生第一干涉图案并调谐光学干涉仪。 本发明还提出了一种通过调整其光程长度而不引入抖动进入路径长度来使用光信号来调谐光干涉仪的方法。

    DIGITAL VISUAL INTERFACE WITH AUDIO AND AUXILIARY DATA
    8.
    发明申请
    DIGITAL VISUAL INTERFACE WITH AUDIO AND AUXILIARY DATA 有权
    数字视频接口与音频和辅助数据

    公开(公告)号:US20090052471A1

    公开(公告)日:2009-02-26

    申请号:US12034327

    申请日:2008-02-20

    IPC分类号: H04J3/06

    摘要: One embodiment of the present invention uses an abbreviated blanking period, in comparison to the standard VESA and CEA-EIA blanking periods, in order to send data, including low bandwidth, non-timing information, over one or more channels of the digital video link. By shortening the blanking period, the amount of time available for sending data in each scan line is increased, enabling the system to send more data over each channel. The inactive video portion of a scan line sent during vertical sync may also be used to send additional digital data. Shortening the blanking periods and/or using the inactive video sections of the horizontal scan lines adds to the overall data capacity of the link and may be used to send other digital data, such as multichannel audio, video, control, timing, closed captioning or other digital data.

    摘要翻译: 与标准VESA和CEA-EIA消隐期相比,本发明的一个实施例使用缩短的消隐期,以便通过数字视频链路的一个或多个信道发送包括低带宽,非定时信息的数据 。 通过缩短消隐期,可以增加每条扫描行中发送数据的时间量,使系统能够通过每个通道发送更多的数据。 在垂直同步期间发送的扫描线的不活动视频部分也可用于发送附加数字数据。 缩短消隐周期和/或使用水平扫描线的非活动视频部分增加了链路的总体数据容量,并可用于发送其他数字数据,如多声道音频,视频,控制,定时,隐藏式字幕或 其他数字数据。

    Digital visual interface with audio and auxiliary data cross reference to related applications
    9.
    发明授权
    Digital visual interface with audio and auxiliary data cross reference to related applications 失效
    具有音频和辅助数据的数字视觉接口交叉参考相关应用

    公开(公告)号:US07356051B2

    公开(公告)日:2008-04-08

    申请号:US09951671

    申请日:2001-09-12

    IPC分类号: H04J1/00

    摘要: One embodiment of the present invention uses an abbreviated blanking period, in comparison to the standard VESA and CEA-EIA blanking periods, in order to send data, including low bandwidth, non-timing information, over one or more channels of the digital video link. By shortening the blanking period, the amount of time available for sending data in each scan line is increased, enabling the system to send more data over each channel. The inactive video portion of a scan line sent during vertical sync may also be used to send additional digital data. Shortening the blanking periods and/or using the inactive video sections of the horizontal scan lines adds to the overall data capacity of the link and may be used to send other digital data, such as multi-channel audio, video, control, timing, closed captioning or other digital data.

    摘要翻译: 与标准VESA和CEA-EIA消隐期相比,本发明的一个实施例使用缩短的消隐期,以便通过数字视频链路的一个或多个信道发送包括低带宽,非定时信息的数据 。 通过缩短消隐期,可以增加每条扫描行中发送数据的时间量,使系统能够通过每个通道发送更多的数据。 在垂直同步期间发送的扫描线的不活动视频部分也可用于发送附加数字数据。 缩短消隐周期和/或使用水平扫描线的非活动视频部分增加了链路的总体数据容量,并可用于发送其他数字数据,如多声道音频,视频,控制,定时,闭合 字幕或其他数字数据。