System and method for using HDMI arc for estimating latency
US10142521B2 · kind B2 · utility
3Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2017 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Mar 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8106
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method that includes receiving an audio video stream, decoding the audio video stream to yield decoded video and decoded audio, transmitting the decoded video on a video cable to a display, transmitting a signal, such as, for example, a signal on an audio channel of the video cable, identifying an impulse response based on a received signal responsive to the transmitting of the signal, identifying a delay amount based on the impulse response and transmitting the decoded audio to a loudspeaker according to the delay amount. The cable can include an HDMI cable with the audio return channel (ARC) capability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.