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公开(公告)号：US5206721A
公开(公告)日：1993-04-27
申请号：US490469
申请日：1990-03-08
申请人： Youichi Ashida , Ryusaku Imai , Yuji Yoshida , Toshihiro Homma , Hitoshi Sato , Hitoshi Ishiguro , Hiroaki Natori , Masakazu Yamaguchi
发明人： Youichi Ashida , Ryusaku Imai , Yuji Yoshida , Toshihiro Homma , Hitoshi Sato , Hitoshi Ishiguro , Hiroaki Natori , Masakazu Yamaguchi
摘要： A television conference system having at least one of the functions of automatically directing a camera toward a speaker, of transmitting video signals of picture images from a plurality of television cameras, and of displaying a document image. The television conference system includes a microphone input judgement unit for judging the existence of any input into microphones provided for the speakers of a television conference; a judgement result holding unit for holding the results of the judgement of existence of the microphone inputs over a first predetermined period, the first predetermined period being longer than the shortest period of continuous speaking; a time totaling unit for obtaining the total time of the microphone inputs during the first predetermined period from the results of judgement held in the judgement result holding unit; a speaker specifying unit for specifying as the current speaker the speaker using a microphone having a total time obtained by the time totaling unit which is over a second predetermined period, the second predetermined period being the standard continuing period of noise; and a camera drive unit for driving a camera within a shooting range of the speaker specified as the current speaker by the speaker specifying unit.
摘要翻译： 一种电视会议系统，其具有将照相机自动引向扬声器的功能中的至少一个，从多个电视摄像机发送图像图像的视频信号，以及显示文档图像。 电视会议系统包括麦克风输入判断单元，用于判断为电视会议的扬声器提供的麦克风的任何输入的存在; 判断结果保持单元，用于在第一预定时段内保持麦克风输入的存在判断结果，第一预定周期长于连续说话的最短时间; 时间总计单元，用于从保持在判断结果保持单元中的判断结果中获取在第一预定时段期间的麦克风输入的总时间; 扬声器指定单元，用于将具有总时间的麦克风的扬声器指定为当前扬声器，该麦克风具有超过第二预定周期的时间合计单元，第二预定周期是噪声的标准连续周期; 以及照相机驱动单元，用于通过扬声器指定单元驱动在指定为当前扬声器的扬声器的拍摄范围内的照相机。
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公开(公告)号：US4668987A
公开(公告)日：1987-05-26
申请号：US710380
申请日：1985-03-11
申请人： Kiichi Matsuda , Toshitaka Tsuda , Toshihiro Homma , Hiroshi Fukuda , Takeshi Okazaki , Shin-ichi Maki
发明人： Kiichi Matsuda , Toshitaka Tsuda , Toshihiro Homma , Hiroshi Fukuda , Takeshi Okazaki , Shin-ichi Maki
CPC分类号： G06T7/2013 , H04N19/152 , H04N19/43 , H04N19/50 , H04N19/51 , G06T2207/10016
摘要： An apparatus for band compression processing of a picture signal which generates forecasting error signal and movement vector and updates only the movement vector during a comb-out operation. During comb-out processing, a picture signal is recirculated while the movement vector is produced and accumulated. At the end of the comb-out processing, the change in the movement vector from the accumulated vector is within a desired range. Therefore, the scale of a circuit for detecting the movement vector after the comb-out operation does not increase.
摘要翻译： 一种用于产生预测误差信号和运动矢量的图像信号的频带压缩处理的装置，并且在梳理操作期间仅更新运动矢量。 在梳理处理期间，在产生和累积运动矢量的同时，图像信号被再循环。 在梳理处理结束时，来自累积矢量的运动矢量的变化在期望的范围内。 因此，用于检测梳理操作之后的运动矢量的电路的比例不增加。
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3.发明授权Differential coding apparatus having an optimum predicted value determining circuit 失效差分编码装置具有最佳预测值确定电路
公开(公告)号：US4743967A
公开(公告)日：1988-05-10
申请号：US25671
申请日：1987-03-13
申请人： Yuuji Takenaka , Toshihiro Homma , Kiichi Matsuda
发明人： Yuuji Takenaka , Toshihiro Homma , Kiichi Matsuda
CPC分类号： H04N19/503
摘要： A differential coding apparatus having a plurality of predictive function computing circuits and an optimum predicted value determining circuit. The optimum predicted value determining circuit determines the optimum predicted value from the plurality of predicted values by using a quantized prediction error used as an output signal of the apparatus, instead of a local decoded signal, and carries out the determining operation of the optimum predicted value in parallel with the quantized prediction error producing operation.
摘要翻译： 一种具有多个预测函数计算电路和最佳预测值确定电路的差分编码装置。 最佳预测值确定电路通过使用用作装置的输出信号的量化预测误差来代替本地解码信号，从多个预测值确定最佳预测值，并执行最佳预测值的确定操作 与量化的预测误差产生操作并行。
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