公开(公告)号：JPH0736594A

公开(公告)日：1995-02-07

申请号：JP17918593

申请日：1993-07-20

Applicant: IBM

Inventor： MORITA TETSUHARU ,  MIWA YOICHI ,  MIZOGUCHI KOJI

IPC: G06F3/02 ,  G06K7/00

Abstract: PURPOSE: To provide s signal input device and its method which is capable of dealing with data inputted from an input means such as a keyboard and another input means as data of the same format and does not use an access method for data operated on a personal computer. CONSTITUTION: CPU 12 consists of an interruption controller 14 controlling an interruption processing, a keyboard controller 16 and a bar code reader 28. The bar code reader 28 is connected with the personal computer 10 by a connector 26. The keyboard controller 16 and the interruption controller 14 are connected with each other through a bus 30. A keyboard 32 is connected with the keyboard controller 16. The keyboard controller 16 consists of an input buffer 18, a control part 20, an output buffer 22 and a latch 24.