Video signal recording apparatus and video signal regenerating apparatus
US6282364A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1997 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Feb 5, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/888
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To a conventional video signal recording apparatus, there are added additional information generating means and data replacement means for replacing data at a specified position in compressed data with additional information generated by the additional information generating means. This enables to provide a video signal recording apparatus and a video signal regenerating apparatus which are able to increase transmissible information content, an image coding apparatus that executes high-efficiency non-linear quantization at a small circuit containing no quantization table and also prevents error propagation; and an image decoding apparatus for regenerating coded data obtained in the image coding apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.