公开(公告)号：JPH0364287A

公开(公告)日：1991-03-19

申请号：JP15661290

申请日：1990-06-14

Applicant: BURLE TECHNOLOGIES

Inventor： JIYON ESU UIROBII ,  ERITSUKU DEI PAAKINSU

IPC: H04N7/18 ,  G08B13/194

Abstract: PURPOSE: To detect not only movement in a horizontal direction but also the one in a vertical direction by displaying the vertical movement based on time difference between mutual signs which display horizontal movement. CONSTITUTION: The output of a 64×64 memory 12 is connected to a series of 64 bit shift registers 21-28, the whole registers are driven by a system clock and theh outputs of the shift registers are connected to AND gate configurations. In this case, when a certain horizontal movement flag is continued by another flag after 64-sampling, it means that vertical movement occurs. Therefore, when the 8 shift registers and the four AND gates are used, the four, six or nine vertically adjacent movement flags are selected by an operator so that vertical movement alarm is issued based on it.