公开(公告)号：US3473137A

公开(公告)日：1969-10-14

申请号：US3473137D

申请日：1967-01-05

Applicant: BURROUGHS CORP

Inventor： STERN DAVID M

IPC: H03K5/02 ,  H03F3/68

CPC classification number: H03K5/02

公开(公告)号：US3564498A

公开(公告)日：1971-02-16

申请号：US3564498D

申请日：1969-10-31

Applicant: BURROUGHS CORP

Inventor： STERN DAVID M

IPC: G06K9/64 ,  G06K9/12

CPC classification number: G06K9/6202

Abstract: APPARATUS FOR GATING ELECTRICAL SIGNALS FROM DIFFERENT COMBINATIONS OF NEIGHBORING ONES OF A FEW REPRESENTATIVE STAGES OF A CHARACTER RECOGNITION MATRIX SHIFT REGISTER, THE OUTPUT OF EACH OF THE GATES BEING APPLIED TO THE INPUT TERMINAL OF A DIFFERENT AUXILIARY SHIFT REGISTER WHICH IS SHIFTED

SYNCHRONOUSLY WITH THE PRIMARY SHIFT REGISTER. EACH AUXILIARY SHIFT REGISTER THEREBY STORES A LOGICAL FUNCTION OF SIGNALS REPRESENTATIVE OF NEIGHBORING AREAS OF THE CHARACTER FIELD THAT IS EXAMINED.

公开(公告)号：US3341659A

公开(公告)日：1967-09-12

申请号：US34002064

申请日：1964-01-24

Applicant: BURROUGHS CORP

Inventor： STERN DAVID M

IPC: H04B1/66

CPC classification number: H04B1/66

公开(公告)号：US3560929A

公开(公告)日：1971-02-02

申请号：US3560929D

申请日：1967-03-03

Applicant: BURROUGHS CORP

Inventor： STERN DAVID M

IPC: G06K9/20 ,  G06K9/04

CPC classification number: G06K9/20 ,  G06K9/32

Abstract: A VIDEO GATING SYSTEM FOR USE IN A CHARACTER RECOGNITION SYSTEMS FOR GATING A PORTION OF THE VIDEO ASSOCIATED WITH EACH CHARACTER TO BE IDENTIFIED. A PRINT EDGE DETECTOR SELECTS A 20 ROW SUB-SET OUT OF 30 ROWS INTO WHICH EACH SCAN OF A CHARACTER IS ARBITRARILY DIVIDED. THE SUB-SET IS SETLECTED BY DETERMINING THE RO LOCATED THREE ROWS BELOW THE FIRST OF THE TWO ADJACENT ROWS CONTAINING BLACK VIDEO INFORMATION. THE SELECTED ROW IS ENCODED AS A NUMBER AND COMPARED TO THE OUTPUT OF A COUNTER. WHEN THE NUMBER EQUALS THE OUTPUT OF THE COUNTER, A GATE IS OPENED FOR EACH SCAN FOR THE TIME IT TAKES 20 ROWS OF DATA TO PASS THROUGH INTO THE RECOGNITION LOGIC. DELAY MEANS BETWEEN THE VIDEO AND THE GATE ARE PROVIDED TO DELAY THE VIDEO ASSOCIATED WITH A PARTICULAR CHARACTER FROM PASSING THROUGH UNTIL THE APPROPRIATE WINDOW HAS BEEN PREPARED.

公开(公告)号：US3467775A

公开(公告)日：1969-09-16

申请号：US3467775D

申请日：1967-01-03

Applicant: BURROUGHS CORP

Inventor： STERN DAVID M ,  MANN ABE ,  OGLE JAMES A

IPC: G02B27/10 ,  G03B21/00 ,  G06K9/20 ,  H01J29/89 ,  H01J31/44 ,  H04N5/38 ,  H04N3/02

CPC classification number: H01J31/44 ,  G02B27/1066 ,  G02B27/123 ,  G03B21/00 ,  G06K9/2009 ,  H01J29/89 ,  H01J2229/893