Content data reproduction system and collection system of use history thereof
US8929547B2 · kind B2 · utility
0Cited by
0References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2012 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Oct 15, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/062
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a content data reproduction system includes a host device which uses content data, and a storage device configured such that content data, which is obtained by decrypting encrypted content data that is created by encrypting the content data by content key data, is made usable in the host device. The host device includes a device ID which is uniquely allocated to each of host devices. The storage device includes a memory and a controller configured to control the memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.