Fast HDMI switching with conditional reset mechanism
US8375150B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2010 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Dec 11, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Various exemplary embodiments relate to a High-Definition Multimedia Interface (HDMI) switch configured to receive notification of a switch from a current HDMI source to a new HDMI source, determine whether the new HDMI source is actively transmitting data, has attempted to access an HDCP register before a predetermined timeout delay since a last HDCP register access, and is transmitting unencrypted data, and based on these determinations, either immediately begin transmission of the HDMI data received from the new source or reset the new HDMI source. In this manner, various exemplary embodiments enable switching between HDMI sources with a reduced delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.