Touch screen-based document editing device and method

• US 20070186158A1
• Filed: 01/11/2007
• Published: 08/09/2007
• Est. Priority Date: 02/09/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Tae, Hwang, Jae, Hwang, Byeong
• Granted Patent: US 8,042,042 B2
• Time in Patent Office: Days
• US Class Current: 715/210
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06F 40/166 Editing, e.g. inserting or deleting

Abstract

A touch screen-based document editing device and method, the device includes an editing symbol storage for storing editing symbols used for editing a document; a display for presenting the document, the display being implemented as a touch screen; a user interface for allowing a user to input an editing request for editing the document presented on the display; a video processor for managing presentation information of the document, displaying the document in an editing mode screen in response to the editing request, and presenting the editing symbol on the document; a video analyzer for receiving the presentation information from the video processor, and extracting the editing symbols and positions of the editing symbols in the document; an editing symbol recognizer for retrieving the editing symbols from the editing symbol storage; and a document editor for executing an editing command on the basis of the editing symbols.

Claims

1. A touch screen-based document editing device comprising:

an editing symbol storage for storing editing symbols used for editing an electronic document;

a display for presenting the electronic document, the display being implemented as a touch screen;

a user interface for user input of an editing request for editing the electronic document presented on the display;

a video processor for managing presentation information of the electronic document, displaying the electronic document in an editing mode screen in response to the editing request, and presenting the editing symbols on the electronic document in response to an editing symbol insertion command input through the touch screen;

a video analyzer for receiving the presentation information from the video processor, and extracting the editing symbols and positions of the editing symbols in the electronic document, in response to an editing execution command input by user manipulation;

an editing symbol recognizer for receiving information on the editing symbols and positions of the editing symbols from the video analyzer, retrieving the editing symbols from the editing symbol storage, and detecting editing commands corresponding to the editing symbols; and

a document editor for executing the editing commands according to the editing symbols and the positions of the editing symbols.

2. The touch screen-based document editing device of claim 1, wherein the editing symbol storage stores the editing symbols, meanings of the editing symbols, and commands for applying the editing symbols to the electronic document.

3. The touch screen-based document editing device of claim 1, wherein the video processor controls the display so as to include spaces in the electronic document for presenting the editing symbols in response to the editing request.

4. The touch screen-based document editing device of claim 3, wherein the video processor controls the display to increase the distance between text lines of the electronic document.

5. The touch screen-based document editing device of claim 4, wherein the video processor controls the display to terminate the editing mode and presents the electronic document edited according to the editing command.

6. The touch screen-based document editing device of claim 4, wherein the video processor controls the display to decrease the distance between the text lines to be the same as that before entering the editing mode.

7. A touch screen-based document editing method comprising:

displaying an electronic document in an editing mode in response to input of an editing request when the electronic document is displayed in a normal mode;

presenting an editing symbol within the electronic document corresponding to an editing symbol signal input through a touch screen;

detecting an editing command from previously stored editing symbol information in response to an editing execution command;

editing the electronic document according to the detected editing commands; and

terminating the editing mode to present the electronic document in the normal mode.

8. The touch screen-based document editing method of claim 7, wherein the step of displaying an electronic document in an editing mode includes inclusion of spaces for presenting the editing symbols in the electronic document.

9. The touch screen-based document editing method of claim 8, wherein the distance between text lines of the electronic document is increased.

10. The touch screen-based document editing method of claim 9, wherein the step of terminating the editing mode includes decreasing the distance between the text lines of the electronic document to that of a normal mode.

11. The touch screen-based document editing method of claim 7, wherein the step of detecting an editing commands includes applying the editing symbols corresponding to the editing commands to the electronic document.