Video data decoding and decoding method
US10575006B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2016 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Oct 2, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video data decoding device and method. The device has an entropy decoder, and a WPP status control module for selecting an operating status according to a syntax structure of a coding tree unit. The device further has a memory selector for controlling the operating status of a memory. The memory has one buffer memory and two update memories. When the number of columns of a row of coding tree units currently decoded is larger than three, the context data of the coding tree units currently decoded is written into the buffer memory and one of the update memories; and when it is determined that the context data of the coding tree units referred by a first coding tree unit in a next row of coding tree units is available when the next row of coding tree units starts to be parsed, the data in the buffer memory is replicated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.