Method for ensuring synchronous presentation of additional data with audio data

• US 8,074,095 B2
• Filed: 09/11/2009
• Issued: 12/06/2011
• Est. Priority Date: 11/27/2001
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Hyung Sun, Seo, Kang Soo, Kim, Byung Jin, Um, Soung Hyun
• Primary Examiner(s): Patel, Nitin C
• Application Number:
  US12/557,608
• Publication Number:
  US 20100003011A1
• Time in Patent Office: 816 Days
• Field of Search: 713/400
• US Class Current: 713/400
• CPC Class Codes: G10H 1/0008 Associated control or indicating means
• CPC Class Codes: G10H 2220/011 Lyrics displays, e.g. for karaoke applications
• CPC Class Codes: G11B 2220/216 Rewritable discs
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 2220/2575 DVD-RAMs
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/10 Indexing; Addressing; Timing or synchronising; Measuring tape travel
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal
• CPC Class Codes: H04N 9/8211 the additional signal being a sound signal H04N9/835 takes precedence
• CPC Class Codes: H04N 9/8233 the additional signal being a character code signal

Abstract

A recording medium, method and apparatus for managing data are discussed. According to an embodiment, the present invention provides a method of reproducing main data and additional data. The method includes receiving the additional data associated with the main data, the additional data being divided into a plurality of segment units; and reproducing the additional data in a synchronous manner with the main data using time information if indication information indicates a presence of the time information. The time information indicates a presentation time of the additional data with respect to the main data. The main data and the additional data are reproduced according to management data, the management data including link information for linking the main data and the additional data.

Claims

1. An apparatus comprising:

a user interface configured to facilitate interaction between the apparatus and a user;

a retrieving unit configured to retrieve a signal that includes content data, navigation data, and additional data;

a digital signal processor configured to convert the retrieved signal into a compressed digital signal;

a decoder configured to decode the compressed digital signal;

an outputting unit configured to output the decoded signal; and

a controller configured to;

select content data according to a selection input received through the user interface,

retrieve, via the retrieving unit, the selected content data and a navigation data including link information and management information, wherein the retrieved management information and the retrieved link information correspond to the selected content data, and wherein the retrieved management information includes indication information indicating whether the navigation data includes time information associated with an output time of the additional data,

determine, based on the indication information, whether the navigation data includes time information,

decode, via the digital signal processor and the decoder, the retrieved link information and the retrieved management information,

retrieve, via the retrieving unit, additional data corresponding to the selected content data using the decoded link information and the decoded management information, wherein the link information is used for linking the additional data to the selected content data,

decode, via the digital signal processor and the decoding unit, the selected content data and the additional data using the link information, and

output, via the outputting unit, the decoded content data and the decoded additional data, the time information being used to synchronize output of the decoded content data with the decoded additional data when the time information is determined to have been included in the navigation data.

2. The apparatus of claim 1, wherein the management information includes attribute information of the additional data, the attribute information being used for at least one of decoding the additional data and outputting the additional data.

3. The apparatus of claim 1, wherein the link information includes at least one of a first identification information identifying the content data and a second identification information identifying the additional data.

4. The apparatus of claim 1, wherein the indication information further indicates a type of the time information.

5. The apparatus of claim 1, wherein the apparatus further comprises an analog-to-digital converter configured to digitize an inputted analog signal, and wherein the controller is further configured to generate data from which the content data may be selected by digitizing, via the analog-to-digital converter, an inputted analog signal.

6. The apparatus of claim 1, wherein the additional data includes a plurality of segmented units that each correspond to one or more parts of the selected content data, and wherein the time information indicates an output time of each segmented unit.

7. A method comprising:

selecting content data according to a selection input;

retrieving the selected content data and a navigation data including link information and management information, wherein the retrieved management information and the retrieved link information correspond to the selected content data, and wherein the retrieved management information includes indication information indicating whether the navigation data includes time information associated with an output time of the additional data;

determining, based on the indication information, whether the navigation data includes time information;

decoding the retrieved link information and the retrieved management information;

retrieving additional data corresponding to the selected content data using the decoded link information and the decoded management information, wherein the link information is used for linking the additional data to the selected content data;

decoding the selected content data and the additional data using the link information; and

outputting the decoded content data and the decoded additional data, the time information being used to synchronize output of the decoded content data with the decoded additional data when the time information is determined to have been included in the navigation data.

8. The method of claim 7, wherein the management information includes attribute information of the additional data, the attribute information being used for at least one of decoding the additional data and outputting the additional data.

9. The method of claim 7, wherein the link information includes at least one of a first identification information identifying the content data and a second identification information identifying the additional data.

10. The method of claim 7, wherein the indication information further indicates a type of the time information.

11. The method of claim 7, further comprising generating content data by digitizing an inputted analog signal.

12. The method of claim 7, wherein the additional data includes a plurality of segmented units that each correspond to one or more parts of the selected content data, and wherein the time information indicates an output time of each segmented unit.

13. An apparatus comprising:

means for selecting content data according to a selection input;

means for retrieving the selected content data and a navigation data including link information and management information, wherein the retrieved management information and the retrieved link information correspond to the selected content data, and wherein the retrieved management information includes indication information indicating whether the navigation data includes time information associated with an output time of the additional data;

means for determining, based on the indication information, whether the navigation data includes time information;

means for decoding the retrieved link information and the retrieved management information;

means for retrieving additional data corresponding to the selected content data using the decoded link information and the decoded management information, wherein the link information is used for linking the additional data to the selected content data;

means for decoding the selected content data and the additional data using the link information; and

means for outputting the decoded content data and the decoded additional data, the time information being used to synchronize output of the decoded content data with the decoded additional data when the time information is determined to have been included in the navigation data.