Frame synchronous packet switching for high-definition multimedia interface (HDMI) video transitions
US10477141B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2018 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | May 17, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/35
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for use in a high-definition media interface (HDMI) source device includes an HDMI interface for transmitting video data and metadata to a sink device. The apparatus is configured to encode the metadata in an auxiliary video information (AVI) information frame (InfoFrame). The apparatus is further configured to transmit the AVI InfoFrame during a frame synchronous transmission window (FSTW) of the video data, wherein the FSTW begins during a video blanking interval (VBI) of the video data, on a first video blank pixel that immediately follows a last active video pixel of a preceding video frame or video field and ends a predetermined number of video lines after a start of the VBI.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.