Methods and apparatus for streaming media conversion with reduced buffering memories
US10841355B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2018 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Jan 19, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/756
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for converting streaming media between different formats. A bridging device for e.g., Camera Serial Interface (CSI) and DisplayPort is disclosed. Both the CSI and DisplayPort technologies use low power mode operation during blanking intervals of a video transmission. However, the CSI interface can wake up in a very short amount of time (e.g., ˜400 ns), but the DisplayPort interface takes significantly longer to perform link training (e.g., ˜1 ms). Various embodiments of the present disclosure use frame signaling trigger to start a wait time interval timer; the wait time interval can be used by the bridge device to wake up the DisplayPort interface ahead of the CSI2 D-PHY interface, thereby ensuring that both links are active at the same time. This “wake-up” technique can greatly reduce the size of buffering memories that are required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.