公开(公告)号：US11956417B2

公开(公告)日：2024-04-09

申请号：US17097974

申请日：2020-11-13

Applicant: SAGEMCOM BROADBAND SAS

Inventor： Stéphane Delplace ,  Benjamin Gavalda ,  Jérôme Berger

IPC: H04N9/475 ,  H04B17/364 ,  H04N17/00 ,  H04N21/234

CPC classification number: H04N17/004 ,  H04B17/364 ,  H04N17/002 ,  H04N21/23418

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.