Method of measuring video latency
US11956417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2020 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Aug 1, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A measurement method for measuring video latency induced by a piece of video playback equipment that is connected to a piece of decoder equipment having a photosensitive sensor incorporated therein, the method including the steps of: causing a screen of the video playback equipment to generate emitted light test signals; using the photosensitive sensor to acquire captured light signals including received light test signals resulting from the emitted light test signals being reflected on at least one surface of surroundings of the video playback equipment; acquiring measurement signals produced by the photosensitive sensor from the captured light signals, and analyzing the measurement signals in order to obtain a video latency measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.