• Title/Summary/Keyword: Media processing board

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Analysis of Signal Integrity of High Speed Serial Interface for Ultra High Definition Video Pattern Control Signal Generator (UHD급 영상패턴 제어 신호발생기를 위한 고속 시리얼 인터페이스의 신호 무결성 분석)

  • Son, Hui-Bae;Kweon, Oh-Keun
    • Journal of Broadcast Engineering
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    • v.19 no.5
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    • pp.726-735
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    • 2014
  • In accordance with 4K UHD(Ultra High Definition) LCD television's higher resolution and data expansion, LCD TV had to face problems such as increasing numbers of cables and tangible skews problems among cables. The V-by-One HS is a new interface technology in the path between the image processing IC and timing control (TCON) board. The variable speed from 600 Mbps to 3.75 Gbps effectively meets the requirements of various different pixel rates. In this paper, we use the V-by-One HS interface to illustrate our proposed simulation method of frequency resonance mode and PCB design approach to model the effects of signal integrity for high speed video signal using an IBIS models.

Implementation of a Cluster VOD Server and an Embedded Client based on Linux (리눅스 기반의 클러스터 VOD서버와 내장형에 클라이언트의 구현)

  • Seo Dongmahn;Bang Cheolseok;Lee Joahyoung;Kim Byounggil;Jung Inbum
    • Journal of KIISE:Computing Practices and Letters
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    • v.10 no.6
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    • pp.435-447
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    • 2004
  • For VOD systems, it is important to provide QoS to more users under the limited resources. To analyze QoS issues in real environment, we implement clustered VOD server and embedded client system based on the Linux open source platform. The parallel processing of MPEG data, load balancing for nodes and VCR like functions are implemented in the server side. To provide more user friendly interface, the general TV is used for a VOD client's terminal and the embedded board is used supporting for VCR functions. In this paper, we measure the performance of the implemented VOD system under the various user requirement features and evaluate the sources of performance limitations. From these analyses, we propose the dynamic admission control method based on the availability memory and network bandwidth. The proposed method enhances the utilization of the system resource for the more QoS media streams.