Electronic device and copyright protection method of audio file thereof
US8584252B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 20, 2011 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Apr 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8358
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A copyright protection method is applied to an electronic device. The method includes: obtaining digital data of an audio file via Video on Demand (VOD); determining whether or not the audio file is free to use; determining whether or not the accessing of the audio file is legal if the audio file is not free. Upon a condition that the audio file is free, or the accessing of the audio file is legal and not free, decoding the audio file into analog signals. Upon a condition that digital copyright information is not included in the audio file, inserting into the analog signals the digital copyright information; outputting the analog signals of the audio file along with digital copyright information of the audio file. Upon a condition that the audio file is not free and not legally permitted, indicating the accessing of the audio file is illegal. The electronic device is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.