Invention Application
- Patent Title: UNAUTHORIZED CONTENTS DETECTION SYSTEM
- Patent Title (中): 未知的内容检测系统
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Application No.: US14595447Application Date: 2015-01-13
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Publication No.: US20150127948A1Publication Date: 2015-05-07
- Inventor: Masao NONAKA , Yuichi FUTA , Toshihisa NAKANO , Kaoru YOKOTA , Motoji OHMORI , Masaya MIYAZAKI , Masaya YAMAMOTO , Kaoru MURASE , Senichi ONODA
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Priority: JP2004-110069 20040402; JP2004-146963 20040517; JP2004-151621 20040521; JP2004-163734 20040601; JP2004-196531 20040702; JP2004-201009 20040707; JP2004-206335 20040713
- Main IPC: H04L9/32
- IPC: H04L9/32 ; G06F21/62 ; G06F21/64 ; G06F21/10
Abstract:
A data processing device for playing back a digital work reduces the processing load involved in verification by using only a predetermined number of encrypted units selected randomly from multiple encrypted units constituting encrypted contents recorded on a DVD. In addition, the data processing device improves the accuracy of detecting unauthorized contents by randomly selecting a predetermined number of encrypted units every time the verification is performed.
Public/Granted literature
- US09270470B2 Unauthorized contents detection system Public/Granted day:2016-02-23
Information query
