Program data transmission checking method and apparatus
US6279157A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1998 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Feb 19, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8352
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To obtain unique identification data to be added to program data even if different encoders are used, identification data generated by adding serial data specific to an encoder to data (time code) indicating the time of encoding is inserted into program data to be stored in a storage device. Whether the program data has been transmitted is checked based on the thus-generated identification data. By virtue of the use of such an identification data, even if program data are produced at the same time point by using different encoders, they can be clearly distinguished from each other because they are associated with different identification data because serial data of the encoders are different.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.