Supplemental data path for supporting on-screen displays from external sources in a monitor/TV receiver using a secondary analog signal path
US6490002B1 · kind B1 · utility
76Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | Feb 3, 1999 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Feb 3, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/47
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An external source outputs an analog signal containing on-screen information (OSD) for the external source, which has been decoded in the external source, and an encoded high definition digital signal. A high definition television (HDTV) has separate inputs for the analog signal and the high definition digital signal, which is decoded in the HDTV to a format suitable for display on the HDTV monitor. Accordingly, both the OSD information for the external source and the high definition signal are available for use and display on the HDTV monitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.