Multi-channel electronic programming guide and soft picture-in-picture acquisition for use with digital television
US6212680A · kind A · utility
70Cited by
9References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1998 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Mar 4, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Multi-channel Electronic Program Guide acquisition and soft picture-in-picture system for use with digital television receiver. The digital television receiver uses its central processing unit (CPU) to perform a software decode of packets received from a main tuner and/or a picture-in-picture. This allows the CPU to display video from pictures within the same RF channel or within another channel simultaneously with video information decoded in real-time by a hardware decoder. Also, in the case of a digital television with two tuners, the CPU can acquire and accumulate EPG data from multiple channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.