Patents Examined by Terance Stanton
  • System for selectively communicating information between processor and built-in keyboard and external input means
    Patent number: 5530893
    Abstract: A data processing system having a built-in keyboard and an external input device which are alternately activated. If there is no command from the external keyboard (106), the external keyboard is invalidated (108). If there is a command from the built-in keyboard, it is transmitted to the CPU (110-114). If there is a command from the external keyboard (106) and the command is RESEND a previous command is transmitted to the CPU. If the command is not RESEND, the command from the external keyboard is transmitted to the CPU.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: June 25, 1996
    Assignee: International Business Machines Corporation
    Inventor: Haruo Sugi