Method of quantizing, coding and transmitting a digital video signal
US5258835A · kind A · utility
101Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1991 |
| Grant date | Nov 2, 1993 |
| Priority date | — |
| Expiry date | Jul 10, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of coding a digital video signal is characterized by forming a block by grouping together a specific number of pixels from an input digital video signal, setting a quantizing level consisting of a number of levels less than a number of levels determined by a data word length of pixel in every block, quantizing, coding and transmitting the plural pieces of pixel data in each block, and transmitting by coding by combining together at least two pieces of side information necessary for determining the quantizing level in each block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.