Scalable Display of Internet Content on Mobile Devices

• US 20070288841A1
• Filed: 04/21/2007
• Published: 12/13/2007
• Est. Priority Date: 06/12/2000
• Status: Active Grant

• Current Assignee: SoftView LLC
• Original Assignee: SoftView LLC
• Inventors: Sherman, Scott, Rohrabaugh, Gary
• Granted Patent: US 7,831,926 B2
• Time in Patent Office: Days
• US Class Current: 715/238
• CPC Class Codes: G06F 16/95 Retrieval from the web
• CPC Class Codes: G06F 16/9537 Spatial or temporal dependent retrieval, e.g. spatiotemporal queries
• CPC Class Codes: G06F 16/957 Browsing optimisation, e.g. caching or content distillation
• CPC Class Codes: G06F 16/9574 of access to content, e.g. by caching
• CPC Class Codes: G06F 16/9577 Optimising the visualization of content, e.g. distillation of HTML documents
• CPC Class Codes: G06F 16/958 Organisation or management of web site content, e.g. publishing, maintaining pages or automatic linking
• CPC Class Codes: G06F 16/986 Document structures and storage, e.g. HTML extensions
• CPC Class Codes: G06F 2203/04806 Zoom, i.e. interaction techniques or interactors for controlling the zooming operation
• CPC Class Codes: G06F 2212/1048 Scalability
• CPC Class Codes: G06F 3/0481 based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G06F 40/103 Formatting, i.e. changing of presentation of documents automatic justification G06F40/189; automatic line break hyphenation G06F40/191
• CPC Class Codes: G06F 40/134 Hyperlinking
• CPC Class Codes: G06F 40/143 Markup, e.g. Standard Generalized Markup Language [SGML] or Document Type Definition [DTD]
• CPC Class Codes: G06F 9/451 Execution arrangements for user interfaces
• CPC Class Codes: G06Q 30/02 Marketing; Price estimation or determination; Fundraising
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2340/0492 Change of orientation of the displayed image, e.g. upside-down, mirrored
• CPC Class Codes: G09G 5/24 Generation of individual character patterns
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/04 : specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/565 : Conversion or adaptation of application format or content adding application control or application functional data H04L67/561

Abstract

Mobile devices enabled to support resolution-independent scalable display of Internet (Web) content to allow Web pages to be scaled (zoomed) and panned for better viewing on smaller screen sizes. The mobile devices employ software-based processing of original Web content, including HTML-based content, XML, cascade style sheets, etc. to generate scalable content. The scalable content and/or data derived therefrom are then employed to enable the Web content to be rapidly rendered, zoomed, and panned. Display lists may also be employed to provide further enhancements in rendering speed.

Claims

1. A mobile device, comprising:

a processor,

a wireless communications device operatively coupled to the processor, to facilitate communication with a network via which Web content may be accessed;

a touch-sensitive display;

a memory, operatively coupled to the processor; and

storage means, operatively coupled to the processor, in which a plurality of instructions are stored that when executed by the processor enable the mobile phone to perform operations including,

enabling a user to request to access a Web page having an original format defining an original page layout and attributes;

retrieving HTML-based Web content associated with the Web page defining an original page layout of content on the Web page;

translating the HTML-based Web content to produce scalable vector-based page layout information; and

employing the scalable vector-based page layout information and/or data derived therefrom to,

render at least a portion of the Web page on the touch-sensitive display using a first scale factor; and

re-render the Web page in response to associated user inputs to enable a user to iteratively zoom in and out a display of the Web page.

2. The mobile device of claim 1, wherein the device comprises a mobile phone.

3. The mobile device of claim 1, wherein the device comprises one of a Personal Digital Assistant (PDA) or pocket PC.

4. The mobile device of claim 1, wherein execution of the instructions performs further operations comprising enabling the user to zoom in on a user-selectable portion of a display of the Web page in response to a user interface input made via the touch-sensitive display.

5. The mobile device of claim 4, wherein the display of the Web page is re-rendered substantially in real-time to effect zooming operations.

6. The mobile device of claim 1, wherein the Web content includes at least one hyperlink, and wherein execution of the instructions performs further operations comprising:

enabling the user to select the hyperlink via the touch-sensitive display; and

, in response thereto,

retrieving and translating HMTL-based Web content associated with the hyperlink to produce additional scalable vector-based page layout information; and

employing the additional scalable vector-based page layout information and/or data derived therefrom to render the Web content associated with the hyperlink on the touch-sensitive display.

7. The mobile device of claim 1, wherein execution of the instructions performs further operations comprising:

parsing HTML-based code to determine the original page layout of display content within the Web page, wherein the original page layout defines a layout location for a plurality of objects, including text objects, graphic layout objects, and/or graphic image objects included in the Web page;

defining a primary datum corresponding to the original page layout; and

,

for each object,

defining an object datum corresponding to the layout location for the object;

generating a vector from the primary datum to the object datum for the object; and

creating a reference that links the object to its corresponding vector.

8. The mobile device of claim 1, wherein execution of the instructions performs further operations comprising enabling the Web content to be displayed at different resolutions by scaling the scalable vector-based content to re-render the display in response to associated user inputs.

9. The mobile device of claim 1, wherein execution of the instructions performs further operations comprising returning the display of the Web content to a previous view in response to a corresponding user input made via the touch-sensitive display.

10. The mobile device of claim 1, wherein execution of the instructions performs further operations comprising enabling a user to pan a display of the Web content in response to a corresponding user input made via the touch-sensitive display.

11. The mobile device of claim 10, wherein execution of the instructions performs further operations comprising enabling the display of the Web content to be panned substantially in real-time.

12. The mobile device of claim 1, wherein the page layout of the Web page is defined to have an original aspect ratio, and wherein the scalable vector-based page layout information and/or data derived therefrom is scaled to render a display having a different aspect ratio.

13. The mobile device of claim 1, wherein execution of the instructions performs further operations comprising enabling a user to view a column of the Web content at a higher resolution than a current resolution by tapping on the column via the touch-sensitive display, wherein in response thereto, the display is re-rendered such that content corresponding to the selected column is displayed substantially across the touch-sensitive display.

14. The mobile device of claim 13, wherein the content of the column is reformatted to fit characteristics of the touch-sensitive display when the display is re-rendered.

15. The mobile device of claim 1, wherein the Web content includes at least one image, and wherein execution of the instructions performs further operations comprising enabling a user to view an image at a higher resolution than a current resolution by tapping on the image via the touch-sensitive display, wherein in response thereto, the display is re-rendered such that the image is displayed substantially across at least one of a width and height of a display area of the touch-sensitive display.

16. The mobile device of claim 1, wherein execution of the instructions performs further operations comprising enabling a user to view a paragraph of the Web content at a higher resolution than a current resolution by tapping on the paragraph via the touch-sensitive display, wherein in response thereto, the display is re-rendered such that content corresponding to the selected paragraph is displayed substantially across at least one of a width and height of a display area of the touch-sensitive display.

17. The mobile device of claim 16, wherein the content of the paragraph is reformatted to fit characteristics of the display area when the display is re-rendered.

18. The mobile device of claim 1, wherein the Web page includes text, layout attributes, and images, and wherein execution of the instructions performs further operations comprising:

receiving content corresponding to the text and layout attributes via a first connection; and

receiving content corresponding to at least one image via a second connection.

19. The mobile device of claim 1, wherein execution of the instructions performs further operations comprising:

generating a display list of vectors derived, at least in part, via use of the vector-based page layout information; and

employing the display list to re-render the display of the Web page.

20. The mobile device of claim 1, wherein execution of the instructions performs further operations comprising:

parsing HTML-based code corresponding to the received Web content to determine the original page layout of the content on the Web page;

logically grouping selected content into objects;

defining a primary datum corresponding to the original page layout; and

,

for each object,

defining an object datum corresponding to a layout location datum for the object'"'"'s associated display content;

generating a vector from the primary datum to the object datum for the object; and

creating a reference that links the object to its corresponding vector.

21. The mobile device of claim 20 wherein execution of the instructions performs further operations comprising:

generating a bounding box for each object, the bounding box representing a portion of a rendered display page occupied by the object'"'"'s associated group of content.

22. The mobile device of claim 18, wherein execution of the instructions performs further operations comprising:

mapping the object vectors and associated bounding boxes to a virtual display in memory.

23. The mobile device of claim 22, wherein execution of the instructions performs further operations comprising:

determining a first scale factor and offset in response to one or more corresponding user inputs defining a user-selectable zoom level and pan corresponding to a rendered display of the Web content desired by a user;

determining a virtual display bounding box for the virtual display associated with the first scale factor and offset;

identifying object bounding boxes having at least a portion falling within the virtual display bounding box; and

,

for each of such object bounding boxes,

retrieving content associated with that object bounding box; and

applying an appropriate scale factor to the content to render the display.

24. The mobile device of claim 1, wherein the scalable vector-based content includes scalable text content, and wherein execution of the instructions performs further operations comprising scaling a scalable font to render the scalable text content.

25. The mobile device of claim 1, wherein the original format of the Web page defines a height and width for the Web page, and wherein execution of the instructions performs further operations comprising:

determining an applicable scale factor to display at least one of the width and height of the Web page substantially across a display area of the touch-sensitive display; and

employing the scale factor that is determined as the first scale factor.

26. The mobile device of claim 1, wherein at least a portion of the instructions comprise Java-based instructions configured to be executed on a Java virtual machine.

27. A mobile phone, comprising:

a processor,

wireless communications means operatively coupled to the processor, to facilitate communication with a mobile service provider network via which Web content may be accessed;

a touch-sensitive display;

a memory, operatively coupled to the processor; and

storage means, operatively coupled to the processor, in which a plurality of instructions are stored that when executed by the processor enable the mobile phone to perform operations including,

rendering a browser interface via which a user is enabled to request to access a Web page having an original format defining an original page layout and attributes;

retrieving Web content associated with the Web page;

translating at least a portion of the Web content from its original format into scalable vector-based content that supports a scalable resolution-independent display of the content that substantially retains the original page layout and attributes of the content defined by its original format when rendered;

employing the scalable vector-based content to render at least a portion of the Web page on the display using a first scale factor.

28. The mobile phone of claim 27, wherein execution of the instructions performs further operations comprising enabling the user to zoom in on a user-selectable portion of a display of the Web page in response to a user interface input made via the touch-sensitive display.

29. The mobile phone of claim 28, wherein the display of the Web page is re-rendered substantially in real-time to effect zooming operations.

30. The mobile phone of claim 27, wherein the Web content includes at least one hyperlink, and wherein execution of the instructions performs further operations comprising:

enabling the user to select the hyperlink via the touch-sensitive display; and

, in response thereto,

retrieving and translating the Web content associated with the hyperlink to produce additional scalable vector-based content; and

employing the additional scalable vector-based content to render the Web content associated with the hyperlink on the touch-sensitive display.

31. The mobile phone of claim 27, wherein execution of the instructions performs further operations comprising:

parsing markup language code to determine the original page layout of display content within the Web page, wherein the original page layout defines a layout location for a plurality of objects, including text objects, graphic layout objects, and/or graphic image objects included in the Web page;

defining a primary datum corresponding to the original page layout; and

,

for each object,

defining an object datum corresponding to the layout location for the object;

generating a vector from the primary datum to the object datum for the object; and

creating a reference that links the object to its corresponding vector.

32. The mobile phone of claim 27, wherein execution of the instructions performs further operations comprising enabling the Web content to be displayed at different resolutions by scaling the scalable vector-based content to re-render the display in response to associated user inputs.

33. The mobile phone of claim 27, wherein execution of the instructions performs further operations comprising returning the display of the Web content to a previous view in response to a corresponding user input made via the touch-sensitive display.

34. The mobile phone of claim 27, wherein execution of the instructions performs further operations comprising enabling a user to pan a display of the Web content in response to a corresponding user input made via the touch-sensitive display.

35. The mobile phone of claim 34, wherein execution of the instructions performs further operations comprising enabling the display of the Web content to be panned substantially in real-time.

36. The mobile phone of claim 27, wherein the page layout of the Web page is defined to have an original aspect ratio, and wherein the scalable vector-based content is scaled when rendered so as to produce a display having a different aspect ratio.

37. The mobile phone of claim 27, wherein execution of the instructions performs further operations comprising enabling a user to view a column of the Web content at a higher resolution than a current resolution by tapping on the column via the touch-sensitive display, wherein in response thereto, the display is re-rendered such that content corresponding to the selected column is displayed substantially across the touch-sensitive display.

38. The mobile phone of claim 37, wherein the content of the column is reformatted to fit characteristics of the touch-sensitive display when the display is re-rendered.

39. The mobile phone of claim 27, wherein the Web content includes at least one image, and wherein execution of the instructions performs further operations comprising enabling a user to view an image at a higher resolution than a current resolution by tapping on the image via the touch-sensitive display, wherein in response thereto, the display is re-rendered such that the image is displayed substantially across at least one of a width and height of a display area of the touch-sensitive display.

40. The mobile phone of claim 27, wherein execution of the instructions performs further operations comprising enabling a user to view a paragraph of the Web content at a higher resolution than a current resolution by tapping on the paragraph via the touch-sensitive display, wherein in response thereto, the display is re-rendered such that content corresponding to the selected paragraph is displayed substantially across at least one of a width and height of a display area of the touch-sensitive display.

41. The mobile phone of claim 40, wherein the content of the paragraph is reformatted to fit characteristics of the display area when the display is re-rendered.

42. The mobile phone of claim 27, wherein the Web page includes text, layout attributes, and images, and wherein execution of the instructions performs further operations comprising:

receiving content corresponding to the text and layout attributes via a first connection; and

receiving content corresponding to at least one image via a second connection.

43. The mobile phone of claim 27, wherein execution of the instructions performs further operations comprising:

generating a display list of vectors associated with the scalable vector-based content; and

employing the display list to re-render the display at different scale factors to enable rapid zooming of the Web page.

44. The mobile phone of claim 27, wherein execution of the instructions performs further operations comprising:

parsing markup language code corresponding to the received Web content to determine the original page layout of the content on the Web page;

logically grouping selected content into objects;

defining a primary datum corresponding to the original page layout; and

,

for each object,

defining an object datum corresponding to a layout location datum for the object'"'"'s associated display content;

generating a vector from the primary datum to the object datum for the object; and

creating a reference that links the object to its corresponding vector.

45. The mobile phone of claim 44 wherein execution of the instructions performs further operations comprising:

generating a bounding box for each object, the bounding box representing a portion of a rendered display page occupied by the object'"'"'s associated group of content.

46. The mobile phone of claim 44, wherein execution of the instructions performs further operations comprising:

mapping the object vectors and associated bounding boxes to a virtual display in memory.

47. The mobile phone of claim 46, wherein execution of the instructions performs further operations comprising:

determining a first scale factor and offset in response to one or more corresponding user inputs defining a user-selectable zoom level and pan corresponding to a rendered display of the Web content desired by a user;

determining a virtual display bounding box for the virtual display associated with the first scale factor and offset;

identifying object bounding boxes having at least a portion falling within the virtual display bounding box; and

,

for each of such object bounding boxes,

retrieving content associated with that object bounding box; and

applying an appropriate scale factor to the content to render the display.

48. The mobile phone of claim 27, wherein the scalable vector-based content includes scalable text content, and wherein execution of the instructions performs further operations comprising scaling a scalable font to render the scalable text content.

49. The mobile phone of claim 27, wherein the original format of the Web page defines a height and width for the Web page, and wherein execution of the instructions performs further operations comprising:

determining an applicable scale factor to display at least one of the width and height of the Web page substantially across a display area of the touch-sensitive display; and

employing the scale factor that is determined as the first scale factor.

50. The mobile phone of claim 27, wherein at least a portion of the instructions comprise Java-based instructions configured to be executed on a Java virtual machine.

51. A mobile device, comprising:

a processor,

wireless communications means, to facilitate wireless communication with a network via which Web content may be accessed;

a touch-sensitive display;

flash memory, operatively coupled to the processor, in which a plurality of instructions are stored that when executed by the processor enable the mobile device to perform operations including,

rendering a browser interface via which a user is enabled to request to access a Web page comprising HTML-based Web content defining an original page layout of content on the Web page;

retrieving and processing the HTML-based Web content to produce scalable content; and

employing the scalable content and/or data derived therefrom to,

render the Web page on the touch-sensitive display; and

re-render the Web page in response to associated user inputs to enable the user to iteratively zoom in and out a display of the Web page.

52. The mobile device of claim 51, wherein the device comprises a mobile phone.

53. The mobile device of claim 51, wherein the device comprises one of a Personal Digital Assistant (PDA) or pocket PC.

54. The mobile device of claim 51, wherein execution of the instructions performs further operations comprising enabling the user to zoom in on a user-selectable portion of a display of the Web page in response to a user interface input made via the touch-sensitive display.

55. The mobile device of claim 54, wherein the user interface input enables the user to define a window of a current view of the Web page on which to zoom in on.

56. The mobile device of claim 51, wherein the display of the Web page is re-rendered substantially in real-time to effect zooming operations.

57. The mobile device of claim 51, wherein the Web page includes at least one hyperlink, and wherein execution of the instructions performs further operations comprising:

enabling the user to select the hyperlink via the touch-sensitive display; and

, in response thereto,

retrieving and processing HMTL-based Web content associated with the hyperlink to produce additional scalable content; and

employing the additional scalable content and/or data derived therefrom to render the Web content associated with the hyperlink on the touch-sensitive display.

58. The mobile device of claim 51, wherein at least a portion of the scalable content comprises scalable vector-based content.

59. The mobile device of claim 51, wherein execution of the instructions performs further operations comprising returning the display of the Web page to a previous view in response to a corresponding user input made via the touch-sensitive display.

60. The mobile device of claim 51, wherein execution of the instructions performs further operations comprising enabling a user to pan a display of the Web content in response to a corresponding user input made via the touch-sensitive display.

61. The mobile device of claim 60, wherein execution of the instructions performs further operations comprising enabling the display of the Web content to be panned substantially in real-time.

62. The mobile device of claim 51, wherein the page layout of the Web page is defined to have an original aspect ratio, and wherein the scalable content and/or data derived therefrom is scaled to render a display having a different aspect ratio.

63. The mobile device of claim 51, wherein execution of the instructions performs further operations comprising enabling a user to view a column of the Web content at a higher resolution than a current resolution by tapping on the column via the touch-sensitive display, wherein in response thereto, the display is re-rendered such that content corresponding to the selected column is displayed substantially across the touch-sensitive display.

64. The mobile device of claim 63, wherein the content of the column is reformatted to fit characteristics of the touch-sensitive display when the display is re-rendered.

65. The mobile device of claim 51, wherein the Web content includes at least one image, and wherein execution of the instructions performs further operations comprising enabling a user to view an image at a higher resolution than a current resolution by tapping on the image via the touch-sensitive display, wherein in response thereto, the display is re-rendered such that the image is displayed substantially across at least one of a width and height of a display area of the touch-sensitive display.

66. The mobile device of claim 51, wherein execution of the instructions performs further operations comprising enabling a user to view a paragraph of the Web content at a higher resolution than a current resolution by tapping on the paragraph via the touch-sensitive display, wherein in response thereto, the display is re-rendered such that content corresponding to the selected paragraph is displayed substantially across at least one of a width and height of a display area of the touch-sensitive display.

67. The mobile device of claim 66, wherein the content of the paragraph is reformatted to fit characteristics of the display area when the display is re-rendered.

68. The mobile device of claim 51, wherein the Web page includes text, layout attributes, and images, and wherein execution of the instructions performs further operations comprising:

receiving content corresponding to the text and layout attributes via a first connection; and

receiving content corresponding to at least one image via a second connection.

69. The mobile device of claim 51, further comprising dynamic memory having at least a portion employed for rendering purposes, wherein execution of the instructions performs further operations comprising:

building a display list via use of the scalable content and rendering the display list on a virtual display in the dynamic memory; and

scaling the display list to re-render the display of the Web page.

70. The mobile device of claim 51, wherein execution of the instructions performs further operations comprising:

parsing HTML-based code corresponding to the received Web content to determine the original page layout of the content on the Web page;

logically grouping selected content into objects;

defining a primary datum corresponding to the original page layout; and

,

for each object,

defining an object datum corresponding to a layout location datum for the object'"'"'s associated display content;

generating a vector from the primary datum to the object datum for the object; and

creating a reference that links the object to its corresponding vector.

71. The mobile device of claim 70, wherein execution of the instructions performs further operations comprising:

generating a bounding box for each object, the bounding box representing a portion of a rendered display page occupied by the object'"'"'s associated group of content.

72. The mobile device of claim 68, further comprising dynamic memory having at least a portion employed for rendering purposes, wherein execution of the instructions performs further operations comprising:

mapping the object vectors and associated bounding boxes to a virtual display in the dynamic memory.

73. The mobile device of claim 72, wherein execution of the instructions performs further operations comprising:

determining a first scale factor and offset in response to one or more corresponding user inputs defining a user-selectable zoom level and pan corresponding to a rendered display of the Web page desired by a user;

determining a virtual display bounding box for the virtual display associated with the first scale factor and offset;

identifying object bounding boxes having at least a portion falling within the virtual display bounding box; and

,

for each of such object bounding boxes,

retrieving content associated with that object bounding box; and

applying an appropriate scale factor to the content to render the display.

74. The mobile device of claim 51, wherein the scalable content includes scalable text content, and wherein execution of the instructions performs further operations comprising scaling a scalable font to render the scalable text content.

75. The mobile device of claim 51, wherein the original format of the Web page defines a height and width for the Web page, and wherein execution of the instructions performs further operations comprising:

determining an applicable scale factor to display at least one of the width and height of the Web page substantially across a display area of the touch-sensitive display; and

employing the scale factor to render the display area.

76. The mobile device of claim 51, wherein at least a portion of the instructions comprise Java-based instructions configured to be executed on a Java virtual machine.

77. The mobile device of claim 51, wherein a portion of the HTML-based Web content comprises XML-based content.

78. The mobile device of claim 51, wherein a portion of the HTML-based Web content comprises cascaded style sheet data.

79. A mobile device, comprising:

processing means;

wireless communications means, to facilitate wireless communication with a network via which Web content may be accessed;

touch-sensitive display means, to facilitate user input and display rendered content;

programmed circuit means; and

storage means, in which a plurality of instructions are stored,

wherein, upon execution of the instructions by at least one of the processing means and programmed circuit means, the mobile device is enabled to perform operations, including,

rendering a browser interface via which a user is enabled to request to access a Web page comprising HTML-based Web content defining an original page layout of content on the Web page;

retrieving and processing the HTML-based Web content to produce scalable content; and

employing the scalable content and/or data derived therefrom to,

render the Web page on the touch-sensitive display; and

re-render the Web page in response to associated user inputs made via the touch-sensitive display means to enable the user to iteratively zoom in and out a display of the Web page.

80. The mobile device of claim 79, wherein the processing means includes a general-purpose processor.

81. The mobile device of claim 79, wherein at least a portion of the programmed circuit means is embodied as a special-purpose processor.

82. The mobile device of claim 79, wherein execution of the instructions performs further operations comprising enabling the user to zoom in on a user-selectable portion of a display of the Web page in response to a user interface input made via the touch-sensitive display.

83. The mobile device of claim 82, wherein the user interface input enables the user to define a window of a current view of the Web page on which to zoom in on.

84. The mobile device of claim 79, wherein the display of the Web page is re-rendered substantially in real-time to effect zooming operations.

85. The mobile device of claim 79, wherein execution of the instructions performs further operations comprising enabling a user to pan a display of the Web content in response to a corresponding user input made via the touch-sensitive display.

86. The mobile device of claim 85, wherein execution of the instructions performs further operations comprising enabling the display of the Web content to be panned substantially in real-time.

87. The mobile device of claim 79, wherein the Web content includes at least one image, and wherein execution of the instructions performs further operations comprising enabling a user to view an image at a higher resolution than a current resolution by tapping on the image via the touch-sensitive display, wherein in response thereto, the display is re-rendered such that the image is displayed substantially across at least one of a width and height of a display area of the touch-sensitive display.

88. The mobile device of claim 79, further comprising dynamic memory having at least a portion employed for rendering purposes, wherein execution of the instructions performs further operations comprising:

building a display list via use of the scalable content and rendering the display list on a virtual display in the dynamic memory; and

scaling the display list to re-render the display of the Web page.