Information processing apparatus, information processing method, storage medium, and program

• US 20040143816A1
• Filed: 12/04/2003
• Published: 07/22/2004
• Est. Priority Date: 12/04/2002
• Status: Abandoned Application

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Matsubayashi, Kazuhiro, Maruyama, Kazuna, Shikata, Yasushi
• Application Number:
  US10/726,709
• Publication Number:
  US 20040143816A1
• Time in Patent Office: Days
• US Class Current: 717/114
• CPC Class Codes: G06F 3/04812 Interaction techniques based on cursor appearance or behaviour, e.g. being affected by the presence of displayed objects
• CPC Class Codes: H04N 21/42204 User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor constructive details of casings for the remote control device H01H9/0235; user interfaces for controlling a tuning device of a television receiver through a remote control H03J9/00; remote control of peripheral devices connected to a television receiver through the remote control device of the television receiver H04B1/205
• CPC Class Codes: H04N 21/42212 Specific keyboard arrangements
• CPC Class Codes: H04N 21/4312 involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/47 End-user applications
• CPC Class Codes: H04N 21/8543 using a description language, e.g. Multimedia and Hypermedia information coding Expert Group [MHEG], eXtensible Markup Language [XML] information retrieval of semistructured data, the underlying structure being taken into account, e.g. mark-up language structure data G06F16/80

Abstract

In an information processing apparatus capable of receiving data and displaying objects, the convenience of display operation is improved. More specifically, an information processing apparatus for receiving data described in a markup language and including first hierarchical level elements delimited by predetermined tags and second hierarchical level elements which belong to a range delimited by the predetermined tags, and displaying the received data on a display device, includes a receiving unit for receiving key-input first and second signals, a switching unit for switching selection between the first hierarchical level elements or between the second hierarchical level elements when the first signal is received, and switching selection between the first and second hierarchical level elements when the second signal is received, and a selected element display unit for displaying the selected element on the display device. A desired display object can be selected by a few key input operations.

Claims

1. An information processing apparatus for receiving data described in a markup language and including first hierarchical level elements delimited by predetermined tags and second hierarchical level elements which belong to a range delimited by the predetermined tags, and displaying the received data on a display device, comprising:

receiving unit adapted to receive key-input first or second signals;

switching unit adapted to switch selection between the first hierarchical level elements or between the second hierarchical level elements when the first signal is received, and switching selection between the first and second hierarchical level elements when the second signal is received.

2. The apparatus according to claim 1, wherein the data described in a markup language is a digital broadcasting data.

3. The apparatus according to claim 1, further comprising:

selected element display unit adapted to display the selected element on said display device,

wherein if the selected element is a first hierarchical level element, said selected element display unit highlights all the first hierarchical level elements.

4. The apparatus according to claim 1, further comprising:

selected element display unit adapted to display the selected element on said display device,

wherein when the first or second signal is received, said selected element display unit highlights an element to be selected.

5. An information processing apparatus for receiving data described in a markup language and including a plurality of elements delimited by predetermined tags, and displaying the received data on a display device, comprising:

identifying unit adapted to identify an information amount contained in each of said plurality of elements;

receiving unit adapted to receive a key-input signal;

switching unit adapted to, when the signal is received, switch selection between said plurality of elements on the basis of the information amount of each element identified by said identifying unit.

7. The apparatus according to claim 5, wherein the data described in a markup language is a digital broadcasting data.

8. The apparatus according to claim 5, wherein the information amount contained in each element is an area when the element is displayed.

9. The apparatus according to claim 5, wherein the information amount contained in each element is the number of characters contained in the element.

10. The apparatus according to claim 5, wherein the information amount contained in each element is the number of bytes of data contained in the element.

6. An information processing apparatus for receiving data described in a markup language and including first hierarchical level elements delimited by predetermined tags and second hierarchical level elements which belong to a range delimited by the predetermined tags, and displaying the received data on a display device, comprising:

identifying unit adapted to identify an information amount contained in each of the elements;

receiving unit adapted to receive key-input first or second signals;

switching unit adapted to switch selection between the first hierarchical level elements or between the second hierarchical level elements when the first signal is received, on the basis of the identified information amount, and switching selection between the first and second hierarchical level elements when the second signal is received.

11. An information processing method of displaying, on a display device, data described in a markup language and including first hierarchical level elements delimited by predetermined tags and second hierarchical level elements which belong to a range delimited by the predetermined tags, comprising:

a receiving step of receiving key-input first or second signals;

a switching step of switching selection between the first hierarchical level elements or between the second hierarchical level elements when the first signal is received, and switching selection between the first and second hierarchical level elements when the second signal is received; and

a selected element display step of displaying the selected element on the display device.

12. The method according to claim 11, wherein the data described in a markup language is a digital broadcasting data.

13. The method according to claim 11, wherein if the selected element is a first hierarchical level element, the selected element display step highlights all the first hierarchical level elements.

14. The method according to claim 11, wherein when the first or second signal is received, the selected element display step highlights an element to be selected.

21. A control program for allowing a computer to implement an information processing method cited in claim 11.

15. An information processing method of receiving data described in a markup language and including a plurality of elements delimited by predetermined tags, and displaying the received data on a display device, comprising:

an identification step of identifying an information amount contained in each of the plurality of elements;

a receiving step of receiving a key-input signal;

a switching step of, when the signal is received, switching selection between the plurality of elements on the basis of the information amount of each element identified by the identifying step; and

a selected element display step of displaying the selected element on the display device.

17. The method according to claim 15, wherein the data described in a markup language is a digital broadcasting data.

18. The method according to claim 15, wherein the information amount contained in each element is an area when the element is displayed.

19. The method according to claim 15, wherein the information amount contained in each element is the number of characters contained in the element.

20. The method according to claim 15, wherein the information amount contained in each element is the number of bytes of data contained in the element.

22. A control program for allowing a computer to implement an information processing method cited in claim 15.

16. An information processing method of receiving data described in a markup language and including first hierarchical level elements delimited by predetermined tags and second hierarchical level elements which belong to a range delimited by the predetermined tags, and displaying the received data on a display device, comprising:

an identification step of identifying an information amount contained in each of the elements;

a receiving step of receiving key-input first or second signals;

a switching step of switching selection between the first hierarchical level elements or between the second hierarchical level elements on the basis of the identified information amount when the first signal is received, and switching selection between the first and second hierarchical level elements when the second signal is received; and

a selected element display step of displaying the selected element on the display device.

23. A control program for allowing a computer to implement an information processing method cited in claim 16.

24. An information processing apparatus for receiving data described in a markup language, and displaying an object on a display device, comprising:

searching unit adapted to search the received data for a display element described as a selectable display object;

attribute information adding unit adapted to add, to the display element found by said searching unit, attribute information indicating whether the element is selectable; and

display unit adapted to display, on said display device, the data to which the attribute information is added, in the form of an object.

25. The apparatus according to claim 24, wherein the data described in a markup language is a digital broadcasting data.

26. The apparatus according to claim 25, wherein the data is described in BML.

27. The apparatus according to claim 24, further comprising storage unit adapted to store, as object data, the data to which the attribute information is added.

28. The apparatus according to claim 26, wherein said searching unit performs search by using one of a p element, object element, div element, input element, span element, and anchor element as a keyword.

29. The apparatus according to claim 28, wherein said attribute information adding unit discards an event handler set for each of the display elements found by said searching unit, sets a style for selection, and at the same time sets an order of switching of selection between the display elements.

30. The apparatus according to claim 28, wherein said attribute information adding unit discards an event handler set for each of the display elements found by said searching unit, assigns an access key corresponding to a predetermined key number, and inserts, in each of the display elements, display data for displaying a number.

31. An information processing apparatus for receiving data described in a markup language, and displaying an object on a display device, comprising:

storage unit adapted to store the received data;

pointer control unit adapted to display a pointer on said display device;

designating unit adapted to designate an arbitrary position by moving the displayed pointer; and

extracting unit adapted to search the data stored in said storage unit for a display element corresponding to a display object in the position designated by said designating unit, and extracting the display element.

32. The apparatus according to claim 31, wherein the data described in a markup language is a digital broadcasting data.

33. An information processing method of receiving data described in a markup language, and displaying an object on a display device, comprising:

a search step of searching the received data for a display element described as a selectable display object;

an attribute information addition step of adding, to the display element found in the search step, attribute information indicating whether the element is selectable; and

a display step of displaying, on the display device, the data to which the attribute information is added, in the form of an object.

34. The method according to claim 33, wherein the data described in a markup language is a digital broadcasting data.

35. The method according to claim 34, wherein the data is described in BML.

36. The method according to claim 33, further comprising a storage step of storing, as object data, the data to which the attribute information is added.

37. The method according to claim 35, wherein the search step performs search by using one of a p element, object element, div element, input element, span element, and anchor element as a keyword.

38. The method according to claim 37, wherein the attribute information addition step discards an event handler set for each of the display elements found in the search step, sets a style for selection, and at the same time sets an order of switching of selection between the display elements.

39. The method according to claim 37, wherein the attribute information addition step discards an event handler set for each of the display elements found in the search step, assigns an access key corresponding to a predetermined key number, and inserts, in each of the display elements, display data for displaying a number.

42. A control program for allowing a computer to implement an information processing method cited in claim 33.

40. An information processing method of receiving data described in a markup language, and displaying an object on a display device, comprising:

a storage step of storing the received data;

a pointer control step of displaying a pointer on the display device;

a designation step of designating an arbitrary position by moving the displayed pointer; and

an extraction step of searching the digital broadcasting data stored in the storage step for a display element corresponding to a display object in the position designated in the designation step, and extracting the display element.

41. The information processing method according to claim 40, wherein the data described in a markup language is a digital broadcasting data.

43. A control program for allowing a computer to implement an information processing method cited in claim 40.