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Journal of Zhejiang University SCIENCE A 2006 Vol.7 No.6 P.1008~1017

http://doi.org/10.1631/jzus.2006.A1008


A smartcard conditional access interface scheme for conditional access subsystem separation in digital TV broadcasting


Author(s):  XIE Qiang, ZHENG Shi-bao, YU Xiao-jing

Affiliation(s):  Institute of Image Communication and Information Processing, Shanghai Jiao Tong University, Shanghai 200240, China

Corresponding email(s):   qxie@sjtu.edu.cn

Key Words:  Digital TV broadcasting, Conditional access subsystem separation, Smartcard interface


XIE Qiang, ZHENG Shi-bao, YU Xiao-jing. A smartcard conditional access interface scheme for conditional access subsystem separation in digital TV broadcasting[J]. Journal of Zhejiang University Science A, 2006, 7(6): 1008~1017.

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author="XIE Qiang, ZHENG Shi-bao, YU Xiao-jing",
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2006.A1008


Abstract: 
Conditional access system (CAS) is a key technical component in digital TV broadcasting through which TV operators manage the appropriate rights of different subscribers in order to protect their commercial benefits. The normal digital TV receiver can only receive and decode the pay TV programs scrambled by one specific CAS. In this paper, the authors proposed a smartcard conditional access interface (SCAI) scheme in order to make the digital TV receiver be a common receiving platform independent of any specific CAS employed at the broadcasting head-end. As a result, it only needs to include a common conditional access software package (CCAP) without any requirement of hardware modification in the receiver. Comparison between the two mentioned DVB-CI-based schemes showed that the cost of such kind receiver is greatly reduced. The main design points of the proposed scheme and its reference implementation’s architecture are presented in this paper. This scheme is also one of the candidate national standards for Chinese digital TV broadcasting industry.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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