Data transmission apparatus and method, data receiving apparatus and method, and data transmission and reception system and method
US6792007B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1999 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Jul 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H2201/33
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The protection of data against illicit transfer with respect to specific data can be ensured. An integrated receiver decoder determines whether or not ATRAC (Adaptive Transform Acoustic Coding) data requiring authentication is contained in selected piece-of-music data in accordance with determination data added into transmitted data. When ATRAC data requiring authentication is contained, the integrated receiver decoder performs an authentication process between it and a storage which is a transfer destination of the ATRAC data, and performs downloading of the ATRAC data after confirming that the storage is a valid apparatus to which the downloading may be performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.