Residual processing circuit using single-path pipeline or multi-path pipeline and associated residual processing method
US10244248B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2017 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Sep 11, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A residual processing circuit has a single-path pipeline and a single-path controller. The single-path pipeline has an inverse scan (IS) circuit, an inverse quantization (IQ) circuit and an inverse transform (IT) circuit arranged to process a current non-zero residual data block in a pipeline manner. The current non-zero residual data block is at least a portion of a transform unit. The single-path controller controls pipelined processing of the current non-zero residual data block at the single-path pipeline. The single-path controller instructs the IS circuit to start IS processing of a next non-zero residual data block before the IT circuit finishes a first half of IT processing of the current non-zero residual data block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.