公开(公告)号：US4843471A

公开(公告)日：1989-06-27

申请号：US131682

申请日：1987-12-11

申请人： Yoshiyuki Yazawa ,  Hirofumi Ohnishi ,  Taizo Akimoto ,  Susumu Washizu ,  Tsuyoshi Shoji

发明人： Yoshiyuki Yazawa ,  Hirofumi Ohnishi ,  Taizo Akimoto ,  Susumu Washizu ,  Tsuyoshi Shoji

IPC分类号： H04N5/76 ,  G09G5/391 ,  H04N1/40 ,  H04N5/907 ,  H04N5/937

CPC分类号： H04N1/40068 ,  G09G5/391 ,  H04N5/907 ,  H04N5/937

摘要： A video image storage device comprises a signal input means capable of analog-to-digital conversion of input video signals including various types of scanning lines such as different numbers of scanning lines, a frame memory means capable of memorizing image signals and signal output means. The video image storage device further comprises an input signal generating means, an output signal generating means and a frame memory control means. The input signal generating means comprises a N multiplying circuit capable of N multiplying horizontal synchronizing pulses. The number of N in a dividing circuit can be arbitarily determined by the relation between effective image period and blanking period, and thus the video image storage device can store input video signals having different scanning line numbers which depend upon the types of diagnostic modalities.

摘要翻译： 视频图像存储装置包括：信号输入装置，其能够对包括各种类型的扫描线（诸如不同数量的扫描线）的输入视频信号进行模数转换，能够存储图像信号的帧存储装置和信号输出装置。 视频图像存储装置还包括输入信号产生装置，输出信号产生装置和帧存储器控制装置。 输入信号产生装置包括一个能够N个水平同步脉冲相乘的N倍增电路。 划分电路中的N数可以通过有效图像周期和消隐周期之间的关系任意确定，因此视频图像存储装置可以存储取决于诊断模式的类型的具有不同扫描行号的输入视频信号。