Method and apparatus for down-converting a digital signal
US5835151A · kind A · utility
32Cited by
8References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1996 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | May 15, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/85
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for down-converting a digital video signal includes a synthesizer and a converter. The synthesizer receives a digital video signal including at least first and second DCT blocks of DCT coefficients, and synthesizes the first and second DCT blocks into a single synthesized DCT block having dimensions equal to the first and second DCT blocks. The converter converts the synthesized DCT block from the DCT domain to the spatial domain to produce an output digital video signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.