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re: Newport Media gets the ISDB picture in smartphones
tb1   7/2/2012 7:51:03 PM
The US also has a mobile over-the-air standard not people know about: Mobile Digital Television or Mobile DTV. It is more advanced than the home digital television: it uses MPEG-4, works with moving receivers, and had graceful degradation when the signal quality goes down. There are even stations in various cities who are broadcasting it! But there are not many products in the US that have embraced this standard. I'd love to have a phone that had a Mobile DTV receiver built-in.

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re: Newport Media gets the ISDB picture in smartphones
yalanand   7/2/2012 11:20:34 AM
@Junko, i totally agree wth you. I think people will watch digital TV broadcase if the content is free because telecom providers charge heavy fees for 3G/4G subscriptions.

old account Frank Eory
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re: Newport Media gets the ISDB picture in smartphones
old account Frank Eory   6/29/2012 9:56:50 PM
ISDB-T started in Japan, but the big market for these DTV-enabled smartphones is probably Brazil. Over-the-air broadcast TV is still the primary means of watching TV for millions of Brazilians, many of whom would probably rather not pay for data charges to watch TV on their phone if they can do it for free.

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re: Newport Media gets the ISDB picture in smartphones
junko.yoshida   6/29/2012 10:06:19 AM
eewiz, you do have a point...people may prefer cherry-picking what they want to watch online. But as long as digital TV broadcast is provided for free of charge/subscription (that's the case in Japan), I believe there is a demand for it on the market. China already proved it with the previous analog TV on handsets.

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re: Newport Media gets the ISDB picture in smartphones
eewiz   6/29/2012 8:36:26 AM
I am wondering whether digital TV will ever be popular in mobile devices? IMO, with increasing 3G/4G dataspeeds people would prefer on-demand streaming video than broadcast tv. Ofcourse Japan is an exception, since they had mobile TV long before the data revolution started! Comments?

As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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