公开(公告)号：US20170085893A1

公开(公告)日：2017-03-23

申请号：US14975221

申请日：2015-12-18

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Yi-Yuan CHEN ,  Lih-Guong JANG ,  Wen-Kuei LAI ,  Nien-Chu WU

IPC: H04N19/40 ,  H04N19/80 ,  H04L29/06

CPC classification number: H04N19/40 ,  H04L69/28 ,  H04N19/467 ,  H04N19/80

Abstract: A method and device of generating an image stream with verification data are provided. The method includes the following steps. First, determine at least one pixel in a first image according to a first encoding parameter. Then, generate a timing data sequence associated with information about the correlation between the verification data and time points according to a second encoding parameter and the verification data. Next, modify a pixel value of the at least one pixel in the first image to generate a second image according to the verification data corresponding to one of the time points in the timing data sequence. Lastly, generate the image stream including the second image.

公开(公告)号：US20180144233A1

公开(公告)日：2018-05-24

申请号：US15394275

申请日：2016-12-29

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Yi-Yuan CHEN ,  Xin-Lan LIAO ,  Kun-Hsien LIN ,  Lih-Guong JANG ,  Chi-Neng LIU ,  Nien-Chu WU ,  Po-Yu HUANG

IPC: G06K19/10 ,  H04L9/14 ,  H04L9/32 ,  H04L9/30 ,  H04L29/06 ,  G06Q30/00 ,  G06K19/06

Abstract: A ticket authentication method and a ticket authentication device are provided. The ticket authentication method includes the following steps. A first electronic device outputs an e-ticket. A second electronic device acquires the e-ticket. The second electronic device outputs a visible light verification code. The first electronic device acquires the visible light verification code and generates a composite code according to a certification data and the verification code. The second electronic device acquires the visible light composite code, and determines whether the composite code matches the certification data and the verification code. When the composite code matches the certification data and the verification code, the second electronic determines that the authentication of the e-ticket is successful.