Multilevel data compression using a single compression engine
US8279934B2 · kind B2 · utility
2Cited by
5References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 26, 2007 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Jun 4, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A single compression engine transmits first and second discrete cosine transform (DCT)-encoded signals. The first DCT-encoded signal uses at most t coefficient bits to represent each of a plurality of DCT coefficients. The second DCT-encoded signal uses at most u coefficient bits, where u is less than t, to represent each of the plurality of DCT coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.