The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 2018
Filed:
Jan. 23, 2015
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Heidi-Maria Back, Helsinki, FI;
Tomas Mecklin, Kyrkslätt, FI;
Miljenko Opsenica, Espoo, FI;
Le Wang, Helsinki, FI;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
A VLC signal representing an alignment identifier is detected by cameras () of multiple user devices () filming a scene. Encoded video frames () from the user devices () are decoded and light patterns representing the captured VLC signal are identified in at least some of the video frames following decoding. The light patterns are decoded into alignment identifiers that are used in order to time align video frames () from different user devices () to thereby achieve video frame synchronization of video data from multiple user devices () recording a scene. The embodiments thereby enable video frame synchronization without the need for accurate clock synchronization between the user devices () and a video synchronization system ().