Image display device and memory management method of the same

• US 9,529,931 B2
• Filed: 09/11/2012
• Issued: 12/27/2016
• Est. Priority Date: 05/23/2012
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Son, Chulmin
• Primary Examiner(s): NGUYEN, CHAU T
• Application Number:
  US13/609,935
• Publication Number:
  US 20130318428A1
• Time in Patent Office: 1,568 Days
• Field of Search: 715/760, 715/771, 715/772, 715/806, 715/807, 715/808, 711/118, 711/135, 711/151, 711/158
• US Class Current: 1/1
• CPC Class Codes: G06F 16/00 Information retrieval; Database structures therefor; File system structures therefor
• CPC Class Codes: G06F 16/13 File access structures, e.g. distributed indices arrangements of input from, or output to, record carriers G06F3/06
• CPC Class Codes: G06F 16/9574 of access to content, e.g. by caching
• CPC Class Codes: G06F 3/0652 Erasing, e.g. deleting, data cleaning, moving of data to a wastebasket
• CPC Class Codes: G06F 40/123 Storage facilities
• CPC Class Codes: G06F 40/134 Hyperlinking
• CPC Class Codes: G06F 40/166 Editing, e.g. inserting or deleting
• CPC Class Codes: G06F 40/189 Automatic justification
• CPC Class Codes: G06F 40/194 Calculation of difference between files

Abstract

According to the present disclosure, there is disclosed an image display device and a memory management method thereof. According to an embodiment of the present disclosure, when a plurality of web pages are loaded and thus the memory space is insufficient, the loaded web pages may be implemented to be unloaded based on unloading priorities assigned by user preference, thereby minimizing data loss and securing insufficient memory space. Furthermore, when approaching an excess of memory capacity as a plurality of web pages are executed, it may be notified to the user in advance and the assigned unloading priorities may be provided to allow the user'"'"'s selective unloading, thereby providing the user'"'"'s convenience and enhancing the use efficiency of a web browser.

Claims

1. An image display device comprising:

a memory;

a display unit configured to display at least one of a plurality of web pages loaded to the memory; and

a controller configured to;

assign unloading priorities to the plurality of loaded web pages according to a predetermined reference,

detect and store edited data of the plurality of loaded web pages,

generate and display an icon associated with the edited data,

in response to a selection of the displayed icon, display the edited data corresponding to the selected icon on a currently displayed web page,

unload at least some of the plurality of loaded web pages according to the assigned unloading priorities and output an alarm when a memory capacity used by the plurality of loaded web pages exceeds an available reference value of the memory,

display an indicator comprising the assigned unloading priorities on the display unit when the plurality of web pages are loaded to the memory,

update and reassign unloading priorities for the plurality of loaded web pages when the displayed web page is changed based on an input applied to the indicator, and

change the displayed assigned unloading priorities into the reassigned unloading priorities when the assigned unloading priorities are updated.

2. The image display device of claim 1, wherein the unloading priorities are assigned according to the predetermined reference, and

the predetermined reference comprises at least one of a time that has been passed from the finally used time of the web page, whether the web page is enlarged or reduced, whether or not the web page is edited, whether or not a text of the web page is edited, a length of the edited text, whether or not a user draw is performed in the HTML5 canvas, a number of clicks of the web page, whether or not the web page is in a read mode, and a total time for which the web page has been read.

3. The image display device of claim 1, further comprising:

an interface unit configured to receive an input signal generated through a user input and provide it to the controller,

wherein the input signal is an unloading execution mode of the plurality of loaded web pages selected through the user input.

4. The image display device of claim 3, wherein the unloading execution mode comprises an automatic unloading mode, and

the controller unloads the plurality of unloaded web pages according to the assigned unloading priorities until a memory capacity used by the plurality of loaded web pages is less than an available reference value of the memory when an input signal of the automatic unloading mode is applied.

5. The image display device of claim 3, wherein the unloading execution mode comprises a manual unloading mode, and

the controller generates a list configured with the assigned unloading priorities and the execution information of web pages corresponding thereto and provides the generated list to the display unit when an input signal of the manual unloading mode is applied.

6. The image display device of claim 1, wherein the indicator further comprises at least one of whether or not each web page has been edited, an elapsed time subsequent to loading, and a used memory capacity.

7. The image display device of claim 1, wherein the display unit is further configured to display a memory indicator indicating a currently available memory capacity or a memory capacity used by the plurality of loaded web pages on a side of the display unit when the plurality of web pages are loaded to the memory.

8. The image display device of claim 7, wherein the controller configures a popup window displayed with a list of web pages to be unloaded according to the assigned unloading priorities and provides the configured popup window to the display unit when an input is applied to the memory indicator.

9. The image display device of claim 8, wherein the popup window further displays at least one or more execution information on the plurality of loaded web pages and each summary object of an edited web page among the plurality of loaded web pages.

10. The image display device of claim 7, wherein the controller unloads the plurality of loaded web pages according to the assigned unloading priorities until a memory capacity used by the plurality of loaded web pages is less than an available reference value of the memory when a long touch input or double tab input is applied to the memory indicator.

11. A memory management method of an image display device, the method comprising:

executing a web browser to load a plurality of web pages corresponding to a web address received from the user to a memory;

displaying at least one of the plurality of loaded web pages on a display unit;

assigning unloading priorities to the plurality of loaded web pages;

detecting and storing edited data of the plurality of loaded web pages;

generating and displaying an icon associated with the edited data;

in response to a selection of the displayed icon, displaying the edited data corresponding to the selected icon on a currently displayed web page;

displaying an indicator comprising the assigned unloading priorities on the display unit when the plurality of web pages are loaded to the memory;

updating and reassigning unloading priorities for the plurality of loaded web pages when the displayed web page is changed based on an input applied to the indicator;

changing the displayed assigned unloading priorities into the reassigned unloading priorities when the assigned unloading priorities are updated;

determining whether or not a memory capacity used by the plurality of loaded web pages exceeds an available reference value of the memory; and

unloading at least some of the plurality of loaded web pages according to the assigned unloading priorities and outputting an alarm when the memory capacity of the memory exceeds the available reference value as a result of the determination.

12. The method of claim 11, wherein said unloading at least some of the plurality of loaded web pages comprises:

selecting either one of an automatic unloading mode and a manual unloading mode through a user input;

unloading the plurality of loaded web pages according to the assigned unloading priorities until a memory capacity used by the plurality of loaded web pages is less than an available reference value of the memory when the automatic unloading mode is selected; and

generating a list configured with the assigned unloading priorities and the execution information of web pages corresponding thereto and providing the generated list to the display unit to unload the user'"'"'s selected web pages when the manual unloading mode is selected.

13. The method of claim 11, wherein the unloading priorities are assigned according to a predetermined reference, and

the predetermined reference comprises at least one of a time that has been passed from the finally used time of the web page, whether the web page is enlarged or reduced, whether or not the web page is edited, whether or not a text of the web page is edited, a length of the edited text, whether or not a user draw is performed in the HTML5 canvas, a number of clicks of the web page, whether or not the web page is in a read mode, and a total time for which the web page has been read.

14. The method of claim 11, further comprising:

generating a popup window containing a list of web pages subject to unloading according to the assigned unloading priorities and displaying the generated popup window on the display unit when an input signal is received.

15. The method of claim 14, wherein the popup window further displays at least one or more execution information on the plurality of loaded web pages and each summary object of an edited web page among the plurality of loaded web pages.

16. The method of claim 15, further comprising:

changing a web page currently displayed on the display unit to a web page corresponding to the summary object when any one of the summary objects is selected.

17. The method of claim 11, wherein the indicator further comprises at least one of whether or not each web page has been edited, an elapsed time subsequent to loading, and a used memory capacity.

18. The method of claim 11, wherein prior to the unloading at least some of the plurality of loaded web pages, the method further comprises:

storing edited web pages among the plurality of loaded web pages;

generating each document selector for the edited web pages and displaying the each document selector on the display unit; and

containing the edited content of a web page corresponding to the selected document selector in a web page currently displayed on the display unit when any one of the document selectors is selected.