Method of recording and reproducing sample data to/from a...

Details Method of recording and reproducing sample data to/from a... Method of recording and reproducing sample data to/from a...

2006-10-03

2006-10-03

Tran, Thang V (Department: 2627)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

C713S193000, C369S030030

Reexamination Certificate

active

07117179

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.

REFERENCES:
patent: 5805551 (1998-09-01), Oshima et al.
patent: 6011761 (2000-01-01), Inoue
patent: 6278836 (2001-08-01), Kawara et al.
patent: 6351442 (2002-02-01), Tagawa et al.
patent: 6675179 (2004-01-01), Morohashi
patent: 6889327 (2005-05-01), Inoha
patent: 2003/0105717 (2003-06-01), Kim et al.
patent: 802527 (1997-10-01), None
patent: 899733 (1999-03-01), None
patent: 911738 (1999-04-01), None

Affiliated with

Also associated with

Rating

Method of recording and reproducing sample data to/from a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of recording and reproducing sample data to/from a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of recording and reproducing sample data to/from a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3713114