Graphics processing system employing embedded code signals
US5768426A · kind A · utility
623Cited by
174References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1994 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Oct 21, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/328
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An identification code signal is impressed on a carrier to be identified (such as an electronic data signal or a physical medium) in a manner that permits the identification signal later to be discerned and the carrier thereby identified. The method and apparatus are characterized by robustness despite degradation of the encoded carrier, and by holographic permeation of the identification signal throughout the carrier. An exemplary embodiment is a processor that embeds the identification signal onto a carrier signal in real time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.