Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Reexamination Certificate
1999-04-14
2001-03-20
dela Torre, Crescelle N. (Department: 2173)
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
C341S022000
Reexamination Certificate
active
06204848
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to a data entry apparatus and method, and in particular, to a data entry apparatus and method having a limited number of character keys.
BACKGROUND OF THE INVENTION
Currently, the common way to enter text messages using a conventional cellular phone keypad is through the multi-tap method. The multi-tap method is a way of using the conventional keypad of a telephone to write text (for address book and/or messages—Global System for Mobile Communications). The multi-tap method requires the user to press the TWO through NINE keys for writing letters, the ONE and ZERO keys for symbols and punctuation, and the ASTERISK and POUND keys for moving the cursor to the left and right. For any of the alphabet letters, the user is required to press the TWO through NINE keys to scroll through the letters and number choices associated with that key. For example, when the TWO key is pressed once, the character “a” is displayed. The second press of the same key (the TWO key) displays the character “b”, the third press of the same key displays the character “c” and finally the fourth press of the TWO key displays the number “2”.
The multi-tap method has proven (based on user feedback and usability studies) to be a very cumbersome method for text entry since it requires too many key presses. Thus, there exists a need to provide a method and apparatus for efficient text entry using a reduced keypad.
REFERENCES:
patent: 5706450 (1998-01-01), Shaiman et al.
patent: 5818437 (1998-10-01), Grover et al.
patent: 5847697 (1998-12-01), Sugimoto
patent: 5911485 (1999-06-01), Rossmann
patent: 5952942 (1999-09-01), Balakrishnan et al.
patent: 5953541 (1999-09-01), King et al.
patent: 6005495 (1999-12-01), Connolly et al.
patent: 6011554 (2000-01-01), King et al.
Probabilistic Character Disambiguation for Reduced Keyboards Using Small Text Samples John L. Arnott and Muhammad Y. Javed, University of Dundee, Scotland; Augmentative and Alternative Communication, vol. 8, Sep. 1992, pp. 215-223.
Balakrishnan Sreeram
Demartines Pierre
Ebrahimi Ali
Nowlan Steven
Rawlins Sheridan
dela Torre Crescelle N.
Motorola Inc.
Romi N. Bose
Terri S. Hughes
LandOfFree
Data entry apparatus having a limited number of character... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Data entry apparatus having a limited number of character..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data entry apparatus having a limited number of character... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2484246