Research And Implement Of The PCTV System Based On Condition Access Technology And The Security

In recent years, with the computer information technology, digital technology and multimedia and technological advances, the development of digital television has achieved encouraging results. Meanwhile, with DVB-T mobile digital TV standards established, the development of mobile digital TV provided favorable conditions, however, as the future development trend of the field of digital TV conditional access technology is not well applied in mobile digital TV, this will be research topic of the digital TV industry practitioners in the future. The security is still a problem for Conditional access technology at the same time, improving in the security of conditional access technology will also be an important factor in development of the industry.This article first introduces the research background and significance, analyses the status and the trends of developments in the field of conditional access technology, digital television and mobile digital television, summarizes the existing main problem. Through the in-depth study of digital television involved in the relevant theory and techniques, advance the PCTV System program based on conditional access technology. PCTV platform use the SM1659 chip as a core control chip which produced by Shenzhen State Micro Technology Co., Ltd. self-developed, using NXP's TDA18271 and TDA10048 silicon chip as the receiver front-end functionality, USB communication using Cypress's CY7C58013 chip. System implementation the descrambling algorithm of conditional access technology, and achieve the DVB-CI protocol stack which used for common transporting in conditional access technology. Meanwhile,through adding the security module DVB-CI+ on the DVB-CI stack to improve the system in a very good safety performance.