Character input device and character input method with a plurality of keypads
First Claim
1. A character input device comprising:
- a touch screen;
a word dictionary database;
a first keypad information database for storing information on a first keypad;
a second keypad information database for storing information on a second keypad; and
a processor configured to;
display, in a character input mode, the first keypad configured of at least one or more character keys on the touch screen;
acquire, when touch of a first input character key is sensed from the first keypad, a character code corresponding to a value of the first input character key from the first keypad information database;
create and virtually display the second keypad on the first keypad in the same shape as the same character key arrangement constituting the first keypad;
acquire, when a user'"'"'s touch input is sensed from the second keypad, at least one or more character codes corresponding to the touch input from the second keypad information database;
create at least one or more input character strings by combining the character code of the first input character key on the first keypad with the character codes acquired by the input characters on the second keypad; and
extract and display character strings of a completed word by performing character string pattern matching between the created input character strings and words stored in the word dictionary database,wherein the first keypad and the second keypad are performed with independent character input modes, respectively,wherein character strings acquired from the first keypad and character strings acquired from the second keypad are created and displayed independently, andwherein the character keys on the second keypad for creating at least one or more input character strings by combining the character code of the first input character key on the first keypad with the plurality of character codes acquired by the input characters on the second keypad in a character input device using the first keypad and the second keypad having independent character input and output modes are formed by grouping a plurality of character keys adjacent to each other on the first keypad into one character key of the second keypad.
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Accused Products
Abstract
Character input device includes touch screen; word dictionary database; first keypad information database for storing information on first keypad; second keypad information database for storing information on second keypad; first keypad creation unit for displaying the first keypad; first key touch recognition unit for acquiring character code corresponding to value of the first key from the first keypad information database and invoking second keypad creation unit; the second keypad creation unit for creating and displaying the second keypad on the first keypad; second keypad touch recognition unit for acquiring character code corresponding to touch movement from the second keypad information database; input character string creation unit for creating one or more input character strings by combining the character code of the first key with the character codes acquired by the second keypad touch recognition unit; and word recognition processing unit for extracting and displaying character strings of a completed word.
16 Citations
16 Claims
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1. A character input device comprising:
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a touch screen; a word dictionary database; a first keypad information database for storing information on a first keypad; a second keypad information database for storing information on a second keypad; and a processor configured to; display, in a character input mode, the first keypad configured of at least one or more character keys on the touch screen; acquire, when touch of a first input character key is sensed from the first keypad, a character code corresponding to a value of the first input character key from the first keypad information database; create and virtually display the second keypad on the first keypad in the same shape as the same character key arrangement constituting the first keypad; acquire, when a user'"'"'s touch input is sensed from the second keypad, at least one or more character codes corresponding to the touch input from the second keypad information database; create at least one or more input character strings by combining the character code of the first input character key on the first keypad with the character codes acquired by the input characters on the second keypad; and extract and display character strings of a completed word by performing character string pattern matching between the created input character strings and words stored in the word dictionary database, wherein the first keypad and the second keypad are performed with independent character input modes, respectively, wherein character strings acquired from the first keypad and character strings acquired from the second keypad are created and displayed independently, and wherein the character keys on the second keypad for creating at least one or more input character strings by combining the character code of the first input character key on the first keypad with the plurality of character codes acquired by the input characters on the second keypad in a character input device using the first keypad and the second keypad having independent character input and output modes are formed by grouping a plurality of character keys adjacent to each other on the first keypad into one character key of the second keypad. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of inputting characters in a character input device provided with a touch screen, the method comprising the steps of:
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(a) displaying, in a character input mode, a first keypad configured of at least one or more character keys on the touch screen; (b) acquiring, when touch of a first input character key is sensed from the first keypad, a character code corresponding to a value of the first input character key, and creating a second keypad on the first keypad virtually and displaying the second keypad on the first keypad visually or unvisually; (c) acquiring, when a user'"'"'s touch input is sensed from the second keypad, at least one or more character codes corresponding to the touch input from the second keypad information database; (d) creating at least one or more input character strings by combining the character code of the first input character key on the first keypad with the character codes acquired from the input characters on the second keypad; and (e) extracting and displaying character strings of a completed word by performing character string pattern matching between the created input character strings and words stored in a word dictionary database, wherein the first keypad and the second keypad are performed with independent character input modes, respectively, and wherein character strings acquired from the first keypad and character strings acquired from the second keypad are created and displayed independently, and wherein the character keys on the second keypad for creating at least one or more input character strings by combining the character code of the first input character key on the first keypad with the plurality of character codes acquired by the input characters on the second keypad in a character input device using the first keypad and the second keypad having independent character input and output modes are formed by grouping a plurality of character keys adjacent to each other on the first keypad into one character key of the second keypad. - View Dependent Claims (13, 14, 15, 16)
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Specification