Author: Umakant Mishra
Abstract:
A computer keyboard consists of several sections and each section consists of several numbers of keys. The text entry section contains the standard character keys, navigation section contains cursor movement and page control keys, numeric keypad contains numeric keys and function keys section contain function keys and special keys. Although the increased number of keys helps smooth interaction with a computer there are situations where it is necessary to reduce the number of keys.
Abstract:
A computer keyboard consists of several sections and each section consists of several numbers of keys. The text entry section contains the standard character keys, navigation section contains cursor movement and page control keys, numeric keypad contains numeric keys and function keys section contain function keys and special keys. Although the increased number of keys helps smooth interaction with a computer there are situations where it is necessary to reduce the number of keys.
The need for reducing number of keys in a keyboard creates a
technical contradiction. Generally more number of keys can support more number
of functions and less number of keys can support less number of functions. We
need more number of functions (all the functions available in a full size
keyboard), but we want only less number of keys (Contradiction). This
contradiction has been solved by using multi-stroke mechanism.
There may be different purposes to reduce the number of keys
in a keyboard. Some of them intend to reduce the size of the keyboard while
some others intend to increase the speed of typing. But all of these inventions
use multi-stroke mechanism to generate more number of signals from less number
of keys.
Keywords: TRIZ, Computer Keyboard, Computer Hardware,
Hardware Inventions, Patents, Inventive Problem Solving, Keyboard design,
keyboard extensions, small keyboards, laptop keyboards
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