Information terminal device
US7146559B2 · kind B2 · utility
5Cited by
6References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 27, 2002 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Dec 16, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2137
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Detection as to the reproduction expiration time of contents is executed, using the measured time of a system clock managed based on system time data from a base station BS. If the reproduction expiration time of the contents is not exceeded, the contents can be reproduced, whereas if it is exceeded, the contents are not reproduced, and a message “Expired” is generated and displayed on a display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.