公开(公告)号：US5278638A

公开(公告)日：1994-01-11

申请号：US914521

申请日：1992-07-17

申请人： Junichi Nakada ,  Tsutomu Banno

发明人： Junichi Nakada ,  Tsutomu Banno

IPC分类号： H04N5/21 ,  H04N9/64

CPC分类号： H04N9/646 ,  H04N5/21

摘要： A noise reducing circuit for video images. A motion detector outputs a first difference between a first video signal and a second image signal. A compensation signal producing circuit generates a compensation signal in accordance with the first difference. The compensation signal is outputted in accordance with a third signal supplied to the compensation signal producing means. A subtracter subtracts the compensation signal from the first video signal to output a second difference between the compensation signal and first video signal. The second difference has the same image information as the first image signal with noise eliminated. An image delaying circuit or memory receives the second difference from the subtracter and outputs a delayed second difference signal. The delayed second difference signal has a delay time of at least one frame and is outputted as the second image signal. A band-pass filter passes frequency components only in a predetermined frequency range either in the first difference signal, in the first video signal, or in the second video signal. A level detector for detecting a level of the frequency components to output the third signal in accordance with the level of the frequency passed by the band-pass filter.

摘要翻译： 用于视频图像的降噪电路。 运动检测器输出第一视频信号和第二图像信号之间的第一差值。 补偿信号产生电路根据第一差产生补偿信号。 根据提供给补偿信号产生装置的第三信号输出补偿信号。 减法器从第一视频信号中减去补偿信号，以输出补偿信号和第一视频信号之间的第二差值。 第二个差异具有与消除噪声的第一图像信号相同的图像信息。 图像延迟电路或存储器从减法器接收第二个差值，并输出延迟的第二差分信号。 延迟的第二差分信号具有至少一帧的延迟时间并作为第二图像信号输出。 带通滤波器仅在第一差分信号，第一视频信号或第二视频信号中在预定频率范围内传递频率分量。 电平检测器，用于根据由带通滤波器通过的频率的电平来检测频率分量的电平以输出第三信号。

公开(公告)号：US4979963A

公开(公告)日：1990-12-25

申请号：US327625

申请日：1989-03-24

申请人： Junichi Nakada ,  Toshiaki Yamamoto ,  Minoru Tada ,  Kyoichi Nakamura

发明人： Junichi Nakada ,  Toshiaki Yamamoto ,  Minoru Tada ,  Kyoichi Nakamura

IPC分类号： C08J9/16 ,  C08J9/22 ,  D06P3/79

CPC分类号： C08J9/22 ,  D06P3/79 ,  C08J2325/06

摘要： This invention provides a process for coloring expandable beads of polystyrene resins which comprises suspending expandable beads of a polystyrene resin and a dye in water in a closed vessel and heating this aqueous suspension at a temperature above the softening point of the expandable beads, wherein the closed vessel is filled up almost completely with the aqueous suspension and heating is conducted without further addition of any blowing agent, whereby the expandable beads are impregnated uniformly with the dye. According to this process, uniformly colored expandable beads of polystyrene resins are obtained at a high efficiency of dye impregnation without using any impregnation aid or the like, the expandable beads being capable of forming beautiful molded foams of uniform color.

摘要翻译： 本发明提供了一种着色聚苯乙烯树脂的可发泡珠粒的方法，其包括将聚苯乙烯树脂和染料的可发泡珠粒悬浮在密闭容器中的水中，并在高于可发泡珠粒的软化点的温度下加热该水性悬浮液，其中封闭 容器用水悬浮液几乎完全填充，并且不进一步加入任何发泡剂进行加热，由此使可染性珠粒与染料均匀地浸渍。 根据该方法，在不使用任何浸渍助剂等的情况下，以高效率的染料浸渍获得聚苯乙烯树脂的均匀着色的可发泡珠粒，所述可发泡珠粒能够形成均匀颜色的美丽模制泡沫。