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Typing error avoidance system Disclosure Number: IPCOM000014482D
Original Publication Date: 2001-Feb-01
Included in the Prior Art Database: 2003-Jun-19
Document File: 2 page(s) / 78K

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Disclosed is a method to avod typing error on a keyboard in portable information systems.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 60% of the total text.

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Typing error avoidance system

Disclosed is a method to avod typing error on a keyboard in portable information systems.

This method offers a special key handling and it prevents to press a wrong key on portable information devices which have small-sized keyboard. Many of portable information devices, such as notebook PC, have small-sized keyboard to miniaturize their body, and it increases chance of typing error by pressing next keys accidentally.

The main idea of this method is to prioritize keys and to change way to press keys and it consists of following functions;
a. A particular key does not respond when it is pressed only one time in specified time duration.
b. The key respond when it is pressed two times in specified time duration.
c. Time durataion can be changed by user Less frequently used key will be picked as "a particular key."

When user press two keys, including normal and lower-priority keys, despite of he/she does not want to press the lower-priority key, the lower-priority key will not respond and only the higher-priority key will respond. It is difficult to use conventinal technique, to set apart the keys, for notebook PCs because their small profile. This method is not affected by mechanical dimension and layout of keys and espacially fit for small-sized systems.


- Take the F1 (function 1) key as a higher-priority key and the Esc key as a lower-priority key

- Fig-1 shows an example of a keyboard layout of a desktop PC and fig-2 shows an e...