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    • 3. 发明公开
    • Method of image coding and decoding
    • Verfahren zur Kodierung und Dekodierung von Bildern
    • EP0797357A3
    • 1999-11-24
    • EP97104595.0
    • 1997-03-18
    • HITACHI, LTD.
    • Nakaya, Yuichiro
    • H04N7/26
    • H04N19/54H04N5/145H04N19/105H04N19/109H04N19/15H04N19/172H04N19/176H04N19/182H04N19/46H04N19/51H04N19/513H04N19/52H04N19/527H04N19/537
    • A method of simplifying the arithmetic operation in a global motion compensation process approximates the motion vector field of the whole image without using many parameters. Motion vectors in the global motion compensation are found by the interpolation and/or extrapolation of the motion vectors of a plurality of representative points 602, 603 and 604 having particular features in the spatial distance thereof. Since a shift operation can substitute the division for synthesizing a predicted image of global motion compensation, the processing using a computer or a dedicated hardware is simplified.
    • 一种视频解码器,包括用于存储先前解码的帧的解码图像(210)的存储器(209),通过使用所述解码图像(210)来合成当前帧的预测图像(212)的合成器(1011,1014) )并且接收关于所述当前帧的信息,其中所述合成器(1011,1014)包括:假定相对于图像在水平和垂直方向上的像素的采样间隔为1,并且假定水平和垂直分量 采样点的坐标都是整数,用于通过使用具有代表点(602,603,604)的代表点(602,603,604)的运动矢量来计算当前帧的所述预测图像(212)中的每个像素的运动矢量的装置(1011,1014) 坐标(i,j),(i + p,j)和(i,j + q),其中i和j是整数; 用于将p和q的值设置为2的整数倍的装置,而不管所述预测图像的大小(212)。 以及用于通过每个像素的所述运动矢量合成所述预测图像(212)的装置(1011,1014)。
    • 4. 发明公开
    • Fuel injection timing control device for diesel engine
    • 汽油发动机(Steuervorrichtungfürden Brennstoffeinspritzpunkt)
    • EP0831228A3
    • 1999-10-27
    • EP97114858.0
    • 1997-08-27
    • MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    • Notani, KazuhiroHashimoto, MitsuoYamane, Shinji
    • F02D41/40
    • F02D41/401F02D41/042F02D41/408Y02T10/44
    • In a fuel injection timing control device for a diesel engine, a timer piston 39 having a low pressure chamber 39a communicating with the upstream side of a feed pump 23 and a high pressure chamber 39b communicating with a pump chamber 26 on the discharge side of the feed pump 23 controls the fuel injection timing by a pump plunger 31. A bypass passageway 42 establishes communication between the low pressure chamber 39a and the high pressure chamber 39b of the timer piston 39. A control valve 43 opens and closes the bypass passageway 42. When an engine 12 is stopped, a fuel injection timing changing means 17 opens the bypass passageway 42 by means of the control valve 43 to allow the low pressure chamber 39a and the high pressure chamber 39b of the timer piston 39 to communicate with each other for a predetermined time. Thus, the fuel injection timing by the pump plunger 31 is changed to the injection timing position at starting.
    • 在柴油发动机的燃料喷射正时控制装置中,具有与供给泵23的上游侧连通的低压室39a的定时活塞39以及与供给泵23的排出侧的泵室26连通的高压室39b 进料泵23通过泵柱塞31控制燃料喷射正时。旁路通道42建立低压室39a和定时器活塞39的高压室39b之间的连通。控制阀43打开和关闭旁路通道42。 当发动机12停止时,燃料喷射正时改变装置17借助于控制阀43打开旁通通道42,以使定时器活塞39的低压室39a和高压室39b彼此连通, 预定时间。 因此,通过泵柱塞31的燃料喷射正时在启动时改变为喷射正时位置。