公开(公告)号：US20180247305A1

公开(公告)日：2018-08-30

申请号：US15969593

申请日：2018-05-02

Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

Inventor： ZHI LI ,  CANHUI OU ,  RAGHVENDRA SAVOOR ,  DIPAK GHOSAL

IPC: G06Q20/38 ,  G06F21/10 ,  H04N21/84 ,  H04N21/835 ,  H04N21/45 ,  H04N7/173 ,  H04N21/254

CPC classification number: G06Q20/3825 ,  G06F21/10 ,  G06F2221/0737 ,  G06F2221/074 ,  H04N7/17318 ,  H04N21/2541 ,  H04N21/4532 ,  H04N21/835 ,  H04N21/84

Abstract: A method includes receiving, by a server, a data transmission of video content destined for a data storage device. The method includes generating, by the server, a content signature by application of a wavelet transform to a plurality of frames of a time sequence of frames of the video content. The method includes selecting, by the server based on content metadata for the video content, particular prohibited content signatures from a plurality of prohibited content signatures. Each prohibited content signature of the particular prohibited content signatures corresponds to a wavelet transform of a plurality of frames of prohibited content. The method also includes, in response to a first determination that a first prohibited content signature of the particular prohibited content signatures matches the content signature, preventing transmission of the video content from the server to the data storage device.