公开(公告)号：WO1990016032A1

公开(公告)日：1990-12-27

申请号：PCT/US1990002953

申请日：1990-05-24

Applicant: GRID SYSTEMS CORPORATION

Inventor： GRID SYSTEMS CORPORATION ,  HAWKINS, Jeffrey, C. ,  SANFORD, Lindsay ,  MCNAMARA, James, H. ,  DULANEY, Kenneth, L.

IPC: G06F15/20

CPC classification number: G06F3/0481 ,  Y10S345/901

Abstract: A system for providing keystroke data to an application program without utilizing a keyboard that simultaneously displays application program graphics and a keyboard representation on different segments of a screen (12). Keys are selected by touching the screen (12t) at the location of the graphic representation of the key on the screen (12b). The system is transparent to the application program.