Apparatus and method for inputting characters in portable...

Details Apparatus and method for inputting characters in portable... Apparatus and method for inputting characters in portable...

2011-03-22

2011-03-22

Wong, Albert K (Department: 2612)

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

C341S020000, C345S168000, C708S142000, C708S146000

Reexamination Certificate

active

07911363

ABSTRACT:
An apparatus and method are provided for inputting characters in electronic equipment using a limited number of keys. A key input device may include a play/pause key (hereinafter, referred to as a ‘play key’), a repeat key, a record key, up/down/left/right arrow keys, and a confirm key. The key input device may generate key data corresponding to input keys. A flash memory may store a key table in which a character code, which may be a combination of certain key data, may be matched to a relevant letter. A display may display the relevant letter on a window. When key data are generated from the key input device, a central processing unit may confirm whether a combination of the generated key data is identical to a predetermined character code, based on the key table stored in the flash memory. If it is confirmed that the combination of the generated key data is identical to the predetermined character code, the CPU may control the display such that the letter corresponding to the character code is displayed on the window.

REFERENCES:
patent: 6232892 (2001-05-01), Burrell, IV
patent: 6378234 (2002-04-01), Luo
patent: 6876312 (2005-04-01), Yu
patent: 7710292 (2010-05-01), Davies

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