ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
33.32
Session ID : BCT2009-68
Conference information
A Study of Transmission System Using AC of One-Seg for Earthquake Early Warning : Reducing Transmission Delay Time and Power Consumption on Standby
Kenichi MURAYAMAMakoto TAGUCHIHiroyuki FURUTAHiroyuki HAMAZUMIKazuhiko SHIBUYAMasayuki TAKADA
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Abstract

The Japanese digital terrestrial broadcasting (ISDB-T) has special carriers called Auxiliary Channel (AC) in addition to the main signals for video and audio. The AC have beneficial features to transmit an Earthquake Early Warning (EEW). AC can be transmitted in a short delay time because the source coding for video and audio information compression and the channel coding such as time interleaving are not used. The transmission of AC is strong against the interference such as noise and fading because DBPSK modulation is used. This paper describes the results of examination about reducing transmission delay time and power consumption of a receiver on standby for EEW broadcast system using AC.

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© 2009 The Institute of Image Information and Television Engineers
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