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    • 11. 发明授权
    • Interactive audio-visual system
    • 互动视听系统
    • US07048386B2
    • 2006-05-23
    • US10380684
    • 2001-09-14
    • Georges Buchner
    • Georges Buchner
    • G03B21/28H04N7/14
    • H04N7/15H04N7/144
    • The invention concerns an interactive audio-visual system between a local scene and a remote scene, comprising at least a device (1) for producing images of the local scene and a device (2) for reproducing the image of the remote scene in an image plane (1). The image sensing device (1) comprises at least a camera (12) and a mirror (11) capable of reflecting on said camera (12) the parallel rays derived from the local scene and perpendicular to the image plane (1). Preferably, the mirror (11) is concave and has a focal point and the camera (12) is located in the proximity of the focal point of said mirror (11).
    • 本发明涉及局部场景和远程场景之间的交互式视听系统,包括至少一个用于产生局部场景的图像的设备(1)和用于再现图像中的远程场景的图像的设备(2) 平面(1)。 图像感测装置(1)至少包括能够在所述照相机(12)上反射从局部场景导出并垂直于图像平面(1)的平行光线的照相机(12)和反射镜(11)。 优选地,镜子(11)是凹形的并且具有焦点,并且相机(12)位于所述镜子(11)的焦点附近。
    • 12. 发明授权
    • Videotelephone conference system
    • 录像电话会议系统
    • US4054908A
    • 1977-10-18
    • US689179
    • 1976-05-24
    • Alain M. PoirierGeorges BuchnerGilbert Francois Martel
    • Alain M. PoirierGeorges BuchnerGilbert Francois Martel
    • H04N7/08H04M3/56H04N7/081H04N7/14H04N7/15H04N7/18
    • H04M3/567H04M3/56H04N7/147H04N7/15H04M3/569
    • Video conference system connecting a plurality of remotely located conference rooms, each containing a group of conferees. It comprises in each room a plurality of videotelephones respectively assigned to the conferees, each including a camera and an image receiver and a plurality of microphones respectively associated with these videotelephones. Means are provided for comparing the levels of the speech signals generated by said microphones in each room and registering an address signal defining the videotelephone associated with the microphone generating the loudest speech signal. Means are further provided for adding all the signals generated by the microphones in each room and thereby obtaining room cumulated microphone signals, the levels of which are compared and an address signal defining the room whose microphones generate the loudest cumulated signal is registered. The rooms are connected through transmitting and receiving video facilities. Switching means selectively connects the cameras of the videotelephones of a room to the image receivers thereof and to said video signal transmitting and receiving video facilities and a switch logic controls said switching means and is itself controlled by the videotelephone address signals and the room address signals.
    • 连接多个远程会议室的视频会议系统,每个会议室包含一组与会者。 它包括在每个房间中分别分配给与会者的多个视频电话,每个视频电话分别包括相机和图像接收机以及分别与这些录像机相关联的多个麦克风。 提供了用于比较由每个房间中的所述麦克风产生的语音信号的电平并且注册定义与产生最大声音信号的麦克风相关联的视频电话的地址信号的装置。 进一步提供用于将由麦克风产生的所有信号添加到每个房间中的装置,从而获得房间累积的麦克风信号,其电平进行比较,并且记录限定麦克风产生最大累积信号的房间的地址信号。 房间通过收发视频设施连接起来。 切换装置选择性地将房间的视频电话机的摄像机连接到其图像接收器,并将所述视频信号发送和接收视频设备连接起来,并且开关逻辑控制所述切换装置,并且本身由视频电话地址信号和房间地址信号控制。