Avi Alkalay Digital Awareness and Flying Spirit

Archive for category “Mobility”

Experiences in a digital mobile life.

Como comprar e quanto custa um iPhone usado 0 comments By AviPublished: Tue, 09 Mar 2010 08:54:28 +0000 Updated: Mon, 15 Mar 2010 14:54:08 +0000 Published: 9 Mar 2010 Updated: 15 Mar 2010 Published: 8:54 am Updated: 2:54 pm Categories: Community and Society • Mobility Tags:
       

Furtaram meu iPhone 3GS 32GB na festa de aniversário fechada da minha filha. Fiquei chateado, principalmente porque usava até o último recurso do aparelho de forma muito produtiva.
Decidi comprar outro, desta vez no Brasil mesmo, mas eu tinha um complicador: minha linha é corporativa. Isso significa que minha conta tem tarifas muitíssimo baixas, tanto que [...]

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How the iPhone 3GS records videos 0 comments By AviPublished: Sat, 07 Nov 2009 15:51:27 +0000 Updated: Wed, 25 Nov 2009 10:56:35 +0000 Published: 7 Nov 2009 Updated: 25 Nov 2009 Published: 3:51 pm Updated: 10:56 am Categories: Mobility • Multimedia Tags:
       

Here are some technical details an analysis about the formats used by the Apple iPhone 3GS to record video.
This is an annotated screenshot of the excellent Mediainfo by Jerome Martinez.

Some notes:

Apple always uses MOV as the extension for standard MP4 files. The recorded video uses an MP4 container so it is capable of holding modern [...]

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Vale a pena comprar um iPhone em outro país? 0 comments By AviPublished: Thu, 29 Oct 2009 14:52:10 +0000 Updated: Fri, 20 Nov 2009 01:40:37 +0000 Published: 29 Oct 2009 Updated: 20 Nov 2009 Published: 2:52 pm Updated: 1:40 am Categories: Mobility Tags:
       

Sobre este tema, há um ótimo post no ótimo Blog do iPhone. Eis alguns comentários:
Um iPhone 3GS 32GB (modelo top de hoje) custa no Brasil, a preço cheio, uns R$3000. É praticamente uma mentira dizer que um iPhone custa +/- R$1300 na loja da operadora pois saibam que paga-se o preço cheio do aparelho (R$3000) [...]

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A Test with High Definition Video Conferencing 4 comments By AviPublished: Mon, 28 Jul 2008 17:58:58 +0000 Updated: Mon, 28 Jul 2008 18:05:24 +0000 Published: 28 Jul 2008 Published: 5:58 pm Updated: 6:05 pm Categories: Mobility • Multimedia Tags:
       

I just participated in very successful proof of technology with Siemens OpenScape video conferencing products.
We made a point-to-point SIP high definition video conference over a local area network. Another test used H.323 protocol. We also included my SIP-enabled Nokia E61i in the conference over the office WiFi network in a direct multipoint call simply calling [...]

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Open Source Software inside the iPhone 0 comments By AviPublished: Sun, 23 Mar 2008 01:49:42 +0000 Published: 23 Mar 2008 Published: 1:49 am Categories: Linux & Open Source • Mobility Tags:
       

Can Open Source Software be more ubiquitous than this ?
A few days ago I was playing extensively with Apple’s iPhone, investigating each sub-menu and little details. There is a section listing legal stuff and software being used with each license. GPL, LGPL, BSD and other Open Source licensed software rule the iPhone.
Some I have noted:

BSD [...]

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