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Conference Paper
Design and Implementation of a Multi-stream CableCARD with a High-Speed DVB-Common Descrambler
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- Authors
- Joon Young Jung, Oh Yung Kwon, Soo In Lee
- Issue Date
- 2006-10
- Citation
- International Conference on Multimedia (MM) 2006, pp.165-168
- Language
- English
- Type
- Conference Paper
- Abstract
- As the digital cable TV broadcasting technique is developed, various applications on a digital cable receiver have been required. Particularly, OpenCableTM specifications for digital cable TV broadcasting have presented a cable receiver with multi-tuner for serving a Digital Video Recorder (DVR) application, a Picture-In-Picture (PIP) application, a Picture-Out-Picture (POP) application and etc. But there are some problems for supporting such applications because the existing CableCARDTM device processes conditional access for only one channel at once. Therefore OpenCableTM specifications have introduced the Multi-Stream CableCARDTM device in order to solve the above problems. The Multi-Stream CableCARDTM device can support conditional access processing for 2 or more channels simultaneously. In this paper, we have designed hardware architecture of the Multi-Stream CableCARDTM device. The designed Multi-Stream CableCARDTM device is implemented based on a FPGA which processes multi-channel filtering, MPEG-2 TS filtering, and DVB-Common descrambling and a microprocessor which manages conditional access applications. Especially we have proposed a descrambler design for the high-speed processing in order to support the 200 Mbps input data bandwidth.
- KSP Keywords
- Hardware Architecture, High Speed, MPEG-2 TS, Multi-stream, TV broadcasting, cable TV, conditional access, design and implementation, digital video, input data, multi-channel