Processing display data for transmission
US11670008B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2020 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Sep 7, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/042
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for compressing display data is disclosed. The method comprises performing a wavelet transformation to obtain a general approximation coefficient and a plurality of detail coefficients for a group of pixels; determining whether to prioritise transmission of the general approximation coefficient over transmission of the detail coefficients based on whether there are sufficient resources available to enable a corresponding image frame to be ready for display and/or based on a time since the detail coefficients for a corresponding group of pixels were previously transmitted. If it is determined that transmission of the general approximation coefficient is to be prioritised over transmission of the detail coefficients, the method comprises either: transmitting only the general approximation coefficient, or compressing at least one detail coefficient so as to be more compressed than the general approximation coefficient and transmitting the general approximation coefficient and the at least one compressed detail coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.