公开(公告)号：GB2321732B

公开(公告)日：2001-10-17

申请号：GB9725193

申请日：1997-11-28

Applicant: IBM

Inventor： AEBLI THOMAS JOHN ,  MILLER BRENT ALAN ,  VETTER WILLIAM WALTER

IPC: G06F1/16 ,  G06F1/32 ,  G06F3/023 ,  G06F13/38 ,  G06F3/00

Abstract: A computer system, and particularly a handheld mobile client system, in which a user input device such as a keyboard or a scanner, coupled by a tethering conductor or a wireless link such as an infrared radiation link, functions as a master while the central processing unit of the system functions as a slave in receiving input digital signals.

公开(公告)号：GB2321732A

公开(公告)日：1998-08-05

申请号：GB9725193

申请日：1997-11-28

Applicant: IBM

Inventor： AEBLI THOMAS JOHN ,  MILLER BRENT ALAN ,  VETTER WILLIAM WALTER

IPC: G06F1/16 ,  G06F1/32 ,  G06F3/023 ,  G06F13/38 ,  G06F3/00

Abstract: A serial port, input/output controller and central processing unit of a computer 10 co-operate to detect and identify a user input device connected to the serial port and to establish the input device as a master governing functioning of the central processor unit. The input/output controller translates scan code signals from the user input device. The computer may be a mobile client comprising a holster 12 which accommodates a tablet 11 and a cellular telephone for communication with a server 20. The tablet has a liquid crystal display with a touchscreen 15 and an optional keypad (Fig 3). User input may also be via a keyboard 16 or bar code scanner 17 attached to the serial port.