System for selectively modifying codes generated by a touch type keyboard upon detecting of predetermined sequence of make codes and break codes
June 26, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesOne-handed keyboard and its control means Dynamically variable keyboard terminal Microcomputer keyboard input circuitry Scan-controlled keyboard Key input control apparatus Industrial process control system Portable word-processor Electronic apparatus having special key Method and apparatus for character generation Method of line buffer loading for a symbol generator InventorsApplicationNo. 853302 filed on 04/14/1986US Classes:710/67, Keystroke interpretation341/26, With particular key scanning feature345/168, Including keyboard345/172, Having programmable function key400/100, PLURAL-KEY-ACTUATED TYPEWRITER (E.G., PERMUTATIVE KEY-BOARD)400/104, For typing and encoding708/142, Including specific keyboard-type information entry708/145, Plural function key708/146Key sequencing (i.e., sequence defines function)ExaminersPrimary: Lee, Thomas C.Attorney, Agent or FirmForeign Patent References
International ClassG06F 003/03AbstractA method and apparatus for enhancing the operation of computer keyboards is disclosed. The invention allows touch-typing of nontouch-type keys by detecting a triggering sequence in the touch-type keys. For example, by holding down the Space Bar while depressing and releasing a second key and before release of the Space Bar, the Space Bar is seen to act as a Control key. Furthermore, the functions of nontouch-type keys may be superimposed upon touch-type keys and accessed in a similar manner. The invention interprets make codes which are generated by the keyboard when a key is depressed and a break code which is generated by the keyboard when a key is released. If a triggering sequence of codes is detected, then the normal function of one of the touch-type keys is altered.Other References
Field of SearchIncluding editing or revision systemINCLUDING CONTROL OF FORMAT BY PROGRAMMED-CONTROL-SYSTEM For typing and encoding FOREIGN LANGUAGE OR BRAILLE TYPEWRITER Including Oriental language POCKET TYPEWRITER PLURAL-KEY-ACTUATED TYPEWRITER (E.G., PERMUTATIVE KEY-BOARD) With error prevention means (e.g., debounce, antichatter) With particular key scanning feature Variable key legends | |
