Digital data processing device that restricts usage of data present on a recording medium
US6810200B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2000 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Apr 13, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8113
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital data recording control system reads music data from a CD and records (i.e., copies) the music data onto an SD card. The CD also stores an ISRC that specifies the content of the CD, that is, the music data present on the CD. The digital data recording control system includes: a recording number information storage unit for associating the ISRC with a number of times the music data has been recorded onto an SD card; a limit information storage unit for storing information showing a limit on a number of times the music data is permitted to be recorded; and a record judging unit for: (1) having a digital data reading unit read the ISRC from the CD and, if a number of times associated with the read ISRC is lower than the limit, read the music data from the CD; and (2) having a recording unit convert the read music data into an MP3 format and record the converted music data onto the SD card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.