Device and method for inputting characters or drawings in a mobile terminal using a virtual screen
First Claim
1. A device for inputting characters or drawings on a mobile terminal, the device comprising:
- a user input means for transmitting input signals;
a virtual screen generator for generating a virtual screen and for generating a virtual word screen including a preview window and a user input window;
a position detector for detecting originating positions of the transmitted input signals on the virtual screen; and
a control section for detecting trails corresponding to consecutive originating positions of the input signals by movement of the user input means to display the detected trails in the preview window, and recognizing the detected trails as characters or symbols to display the recognized characters or symbols in the user input window;
wherein the virtual word screen comprises page keys for moving to a page selected by a user; and
wherein detecting trails comprises moving to a page previous or next to a current page of the preview window and the user input window when one of the page keys is selected;
wherein said virtual screen generator comprises at least one beam projector or laser diode.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is a device and method for inputting characters or drawings on a mobile terminal using a virtual screen. To input characters or drawings through a virtual screen, the mobile terminal includes an electronic pen, a virtual screen generator, a position detector for detecting the electronic pen position, and a character recognition algorithm for recognizing a trail as a character. When a signal is input from the electronic pen, the mobile terminal detects the originating position of the signal and its trail. The mobile terminal recognizes the detected trail as a character and generates a virtual screen with the recognized character.
-
Citations
37 Claims
-
1. A device for inputting characters or drawings on a mobile terminal, the device comprising:
-
a user input means for transmitting input signals; a virtual screen generator for generating a virtual screen and for generating a virtual word screen including a preview window and a user input window; a position detector for detecting originating positions of the transmitted input signals on the virtual screen; and a control section for detecting trails corresponding to consecutive originating positions of the input signals by movement of the user input means to display the detected trails in the preview window, and recognizing the detected trails as characters or symbols to display the recognized characters or symbols in the user input window; wherein the virtual word screen comprises page keys for moving to a page selected by a user; and wherein detecting trails comprises moving to a page previous or next to a current page of the preview window and the user input window when one of the page keys is selected; wherein said virtual screen generator comprises at least one beam projector or laser diode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A method for inputting characters or symbols on a mobile terminal, the method comprising the steps of:
-
generating a virtual word screen including a preview window and a user input window for inputting characters or symbols through a user input means for transmitting input signals; when transmitted input signals are received, detecting originating positions of the transmitted input signals; detecting trails corresponding to consecutive originating positions of the input signals by movement of the user input means to display the detected trails in the preview window; recognizing the detected trails as characters or symbols; and outputting the recognized characters or symbols in the user input window; wherein the virtual word screen comprises function keys including page keys for moving to a page selected by a user; and wherein detecting trails comprises moving to a page previous or next to a current page of the preview window and the user input window when one of the page keys is selected;
wherein said virtual screen generator comprises at least one beam projector or laser diode. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
-
-
32. A method for inputting a drawing on a mobile terminal, the method comprising the steps of:
-
generating a virtual drawing board with a preview window and a user drawing input window for inputting a drawing through a user input means for transmitting input signals; when the transmitted input signals are received, detecting originating positions of the transmitted input signals; detecting trails corresponding to consecutive originating positions of the transmitted input signals; and outputting the detected recognized trails in the user drawing input window, wherein the virtual drawing board comprises page keys for moving to a page selected by a user, and wherein detecting trails comprises moving to a page previous or next to a current page of the preview window and the user drawing input window when one of the page keys is selected;
wherein said virtual screen generator comprises at least one beam projector or laser diode. - View Dependent Claims (33, 34, 35, 36, 37)
-
Specification