Apparatus and Method for Inputting Character Using Touch Screen in Portable Terminal
First Claim
1. A method for inputting a character in a pocket-sized mobile communication device having a touch screen, comprising:
- displaying a keyboard including a plurality of keys in a first area of the touch screen, wherein the each key of the keyboard has an original touch recognizable area according to a size and location of the key;
detecting a touch on the original touch recognizable area of a key of the keyboard;
displaying an enlarged character corresponding only to the key in a second area of the touch screen;
detecting a movement of the touch from the original touch recognizable area of the key to an original touch recognizable area of another key wherein the another key has same size as the key;
removing the enlarged character corresponding to the key in the second area and displaying an enlarged character corresponding only to the another key in the second area if the movement of the touch from the original touch recognizable area of the key to the original touch recognizable area of the another key is detected;
determining if the touch has been released from the touch recognizable area of the key while displaying the enlarged character corresponding only to the key if the movement of the touch is not detected;
determining if the touch has been released from the touch recognizable area of the another key while displaying the enlarged character corresponding only to the another key if the movement is detected; and
inputting the character corresponding only to the key if the movement of the touch is not detected or corresponding only to the another key if the movement of the touch is detected, if the touch has been released.
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Accused Products
Abstract
An apparatus and method for inputting a character using a keyboard displayed on a touch screen in a portable terminal. The apparatus and method determines if a touch signal is generated, with the keyboard displayed. Upon generation of the touch signal, a touched character is recognized by analyzing the touch signal. The character is displayed enlarged in a predetermined screen area. It is then determined if the touch has been completed, while the character is displayed enlarged. Upon sensing the touch completion, the character is displayed in a main screen area.
41 Citations
20 Claims
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1. A method for inputting a character in a pocket-sized mobile communication device having a touch screen, comprising:
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displaying a keyboard including a plurality of keys in a first area of the touch screen, wherein the each key of the keyboard has an original touch recognizable area according to a size and location of the key;
detecting a touch on the original touch recognizable area of a key of the keyboard;
displaying an enlarged character corresponding only to the key in a second area of the touch screen;
detecting a movement of the touch from the original touch recognizable area of the key to an original touch recognizable area of another key wherein the another key has same size as the key;
removing the enlarged character corresponding to the key in the second area and displaying an enlarged character corresponding only to the another key in the second area if the movement of the touch from the original touch recognizable area of the key to the original touch recognizable area of the another key is detected;
determining if the touch has been released from the touch recognizable area of the key while displaying the enlarged character corresponding only to the key if the movement of the touch is not detected;
determining if the touch has been released from the touch recognizable area of the another key while displaying the enlarged character corresponding only to the another key if the movement is detected; and
inputting the character corresponding only to the key if the movement of the touch is not detected or corresponding only to the another key if the movement of the touch is detected, if the touch has been released. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for inputting a character in a pocket-sized mobile communication device having a touch screen, comprising:
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means for displaying a keyboard including a plurality of keys in a first area of the touch screen, wherein each key of the keyboard has an original touch recognizable area according to a size and location of the key;
means for detecting a contact on the original touch recognizable area of a key of the keyboard;
means for displaying an enlarged character corresponding only to the key in a second area of the touch screen;
means for detecting a movement of the contact from the original touch recognizable area of the key to an original touch recognizable area of another key, wherein the another key has same size as the key;
means for removing the enlarged character corresponding to the key in the second area and displaying an enlarged character corresponding only to the another key in the second area if the movement of the contact from the original touch recognizable area of the key to the original touch recognizable area of the another key is detected;
means for determining if the contact has been released while displaying the enlarged character corresponding only to the key if the movement of the contact is not detected and corresponding to the another key if the movement is detected; and
means for inputting the character corresponding only to the key if the movement of the contact is not detected and corresponding only to the another key if the movement is detected, if the contact has been released. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An apparatus for inputting a character in a pocket-sized mobile communication device having a touch screen, comprising:
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means for displaying a keyboard in a first area of the touch screen;
means for detecting a contact on a key of the keyboard;
means for displaying an enlarged character corresponding only to the key in a second area of the touch screen wherein the second area is at least partially outside a vertical perimeter of the key;
means for detecting a movement of the contact from the key to another key;
means for displaying an enlarged character corresponding only to the another key in the second area if the movement is detected wherein the second area is at least partially outside a vertical perimeter of the another key;
means for determining if the contact has been released while displaying the enlarged character corresponding to the key if the movement of the contact is not detected and corresponding to the another key if the movement is detected; and
means for inputting the character corresponding to the key if the movement of the contact is not detected and corresponding to the another key if the movement is detected, if the contact has been released. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification