Method of recording and reproducing sample data to/from a recording medium and sample data containing recording medium
AssigneeLG Electronics Inc.
InventorsHyung Sun Kim, Byung Jin Kim
Life of this patent
Estimating the term…
Abstract
The present invention relates to a method of recording and reproducing sample data to/from a recording medium and a sample data containing recording medium. According to the present invention, contents are recorded on a recording medium with additional sample data which is a part of the contents. And, when the contents of the recording medium are requested to be reproduced, the sample data or all the contents are reproduced based on whether a reproduction approval key is received or not. Owing to the present invention, a user can confirm easily, without purchasing a corresponding reproduction approval key, whether a recording medium such as a DVD-ROM and a DVD-RAM has contents he or she wants.
Claims15
A method of reproducing data from a recording medium, the method comprising:
- (a) checking whether there is play-authorizing information stored on the recording medium or in a device, the play-authorizing information allowing entire playback of recorded data, and the recorded data being reproduced only in accordance with the play-authorizing information;
- (b) reading location information pointing to a data section, which is a part of the recorded data, if there is no play-authorizing information and if an indication information specifies a presence of the location information, the data section being designated sample data for the recorded data and being reproducible without the play-authorizing information;
- and
- (c) reproducing the data section using the read location information, without the play-authorizing information.
A method of reproducing data, comprising:
- (a) determining if play-authorizing information is present on a storage medium or in a device, if a position where sample data for content is present is specified based on an indication information, wherein the play-authorizing information is to authorize a playback of a stored content, and if the sample data being a part of the content is reproducible without the play-authorizing information;
- and
- (b) reproducing the content in accordance with the play-authorizing information if the play-authorizing information is present, or reproducing the sample data using a location information for indicating the position if the position of the sample data is specified.
Dependencies are inferred from the claim text.