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Paper Abstract and Keywords
Presentation 2016-09-09 13:20
A Study for Recovery Video Clock Performances of Erasure Code Improving Burst Loss Tolerance
Junichiro Kawamoto, Takuya Kurakake (NHK)
Abstract (in Japanese) (See Japanese page) 
(in English) Technical development and standardization of transmitting video signals with low latency in IP packets are performed. For a packet loss counter-plan to ensure the quality, a low latency FEC (Forward Error Correction) method with erasure code using XOR (the conventional method) has been standardized by SMPTE. We have proposed the new FEC method to improve the burst loss tolerance as twice compared to the conventional method. In this paper, we report about the recovered video signal clock performance comparison results. To recover the video signal stably at the receiver over an asynchronous IP transmission path, a video time stamp value generated from a video signal clock is added to the video packet at the transmitter. At the receiver, the video signal clock is recovered by using its video time stamp value. There are differences of the construction scheme between the conventional method and the proposed method, so that makes performance differences of the recovered video signal clock. As experimental results, we will reveal that video signal clock frequency jitters of the proposed method can be reduced to about 64% compared to that of the conventional method.
Keyword (in Japanese) (See Japanese page) 
(in English) video over IP transmission / erasure code / exclusive OR / video signal clock / frequency jitter / / /  
Reference Info. ITE Tech. Rep., vol. 40, no. 30, BCT2016-67, pp. 1-4, Sept. 2016.
Paper # BCT2016-67 
Date of Issue 2016-09-02 (BCT) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Conference Date 2016-09-09 - 2016-09-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokugin Tomony Plaza(Tokushima) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Service Integration Broadcasting and Communication Systems, etc 
Paper Information
Registration To BCT 
Conference Code 2016-09-BCT-BT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study for Recovery Video Clock Performances of Erasure Code Improving Burst Loss Tolerance 
Sub Title (in English)  
Keyword(1) video over IP transmission  
Keyword(2) erasure code  
Keyword(3) exclusive OR  
Keyword(4) video signal clock  
Keyword(5) frequency jitter  
1st Author's Name Junichiro Kawamoto  
1st Author's Affiliation Japan Broadcasting Corporation (NHK)
2nd Author's Name Takuya Kurakake  
2nd Author's Affiliation Japan Broadcasting Corporation (NHK)
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Date Time 2016-09-09 13:20:00 
Presentation Time 25 
Registration for BCT 
Paper # BCT2016-67 
Volume (vol) 40 
Number (no) no.30 
Page pp.1-4 
Date of Issue 2016-09-02 (BCT) 

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