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    • 24. 发明授权
    • Adaptive conferencing pod sidetone compensator connecting to a telephonic device having intermittent sidetone
    • 自适应会议荚侧面补偿器连接到具有间歇侧音的电话设备
    • US08050398B1
    • 2011-11-01
    • US11933388
    • 2007-10-31
    • Xin Xu
    • Xin Xu
    • H04M9/00
    • H04M1/58H04M9/082
    • Disclosed herein are teleconferencing pods that include a microphone and a loudspeaker for open-air conversations, connectible to a separate telephonic device that generates an intermittent sidetone that is active at certain times not in the control or monitoring of the pod. In those pods is a sidetone suppressor that suppresses a distracting open-air echo produced from the intermittent sidetone and a compensator that detects sidetone transitions to avoid generating an echo signal in the pod and to avoid adapting suppression in the absence of an externally-generated sidetone. Sidetone suppression may be by several means, and may include variables controlled by adaption, including delay factors, scalers and coefficients. Detailed information on various example embodiments of the inventions are provided in the Detailed Description below, and the inventions are defined by the appended claims.
    • 这里公开的是电话会议盒,其包括用于露天对话的麦克风和扬声器,可连接到单独的电话设备,该单独的电话设备产生在不在控制或监视荚的某些时刻处于活动状态的间歇性侧音。 在这些荚中是一种侧音抑制剂,其抑制由间歇侧音产生的令人分心的露天回声和补偿器,其检测侧音转换以避免在音箱中产生回波信号,并避免在没有外部产生的侧音的情况下适应抑制 。 侧音抑制可以通过几种方式,并且可以包括通过适应控制的变量,包括延迟因子,缩放器和系数。 在下面的详细描述中提供了关于本发明的各种示例性实施例的详细信息,并且本发明由所附权利要求限定。
    • 25. 发明申请
    • PAN, TILT, ZOOM DOME CAMERA WITH OPTICAL DATA TRANSMISSION METHOD
    • PAN,TILT,ZOOM DOME CAMERA与光学数据传输方法
    • US20100141760A1
    • 2010-06-10
    • US12327926
    • 2008-12-04
    • WeiCheng ChengHao WangXin Xu
    • WeiCheng ChengHao WangXin Xu
    • H04N7/18
    • H04N7/185G08B13/1963H04N5/23203H04N7/22
    • A surveillance camera that includes a device for capturing video signals and that converts the video signals to optical signals. The surveillance camera has a first component with a first aperture and a second component with a second aperture The second component engages the first component such that the first component rotates relative to the second component. The surveillance camera has a first optical component that extends through the first aperture of the first component. The surveillance camera also has a second optical component that extends through the second aperture of the second component. The first optical component is separated from the second optical component by a gap. The first optical component is operatively connected to the device. The first optical component receives the optical signals and transmits the optical signals to the second optical component across the gap to permit a continuous rotation of the first component relative to the second component. The second optical component communicates the optical signals to a destination.
    • 一种监视摄像机,包括用于捕获视频信号并将视频信号转换为光信号的设备。 监视摄像机具有带有第一孔径的第一部件和具有第二孔径的第二部件。第二部件接合第一部件,使得第一部件相对于第二部件旋转。 监视摄像机具有延伸穿过第一部件的第一孔的第一光学部件。 监视摄像机还具有延伸穿过第二部件的第二孔的第二光学部件。 第一光学部件通过间隙与第二光学部件分离。 第一光学部件可操作地连接到该装置。 第一光学部件接收光学信号,并且将光信号透射穿过间隙到第二光学部件,以允许第一部件相对于第二部件的连续旋转。 第二光学部件将光信号传送到目的地。