(keitai-l) Re: More location based services

Unfortunately, or perhaps fortunately depending on your point of view, there
is an Inokashiro line station immediately adjacent to Maruyamacho (the name
of the Shibuya hotel district) that most of the people working in Dogenzaka
use. Thus it is perfectly reasonable to be there ;-)  (and yes, I did use
that station myself...for work...)

Of course, if you have not moved for two hours, you are toast when you get
home, as the Inokashiro line trains run every 20-30 minutes in the evening

Eric Hildum


> From: Jani PATOKALLIO <jpatokal@iki.fi>
> Reply-To: keitai-l@appelsiini.net
> Date: Fri, 17 Nov 2000 11:53:41 +0900
> To: keitai-l@appelsiini.net
> Subject: (keitai-l) Re: More location based services
> 
> "Wiberg, Annie" wrote:
>> It looks like a picture taken by a spy! Anyway, does anyone know how the
>> system works and down to what sort of range it works?
> 
> I can't say for sure, but unless they've integrated a GPS receiver into
> the unit (which I doubt), odds are it's just a PHS phone.  PHS
> base stations are microcell, so if DoCoMo knows which base station
> the phone is using, it can pinpoint the user's location to a radius
> of a few dozen meters.  (And if the location is Shibuya's Love
> Hotel Hill, odds are somebody will be in trouble when they get home...)
> 
> At any rate, this is how DoCoMo's "Imadoco Mapion" service
> (http://imadoko.mapion.co.jp/) works.  More technical specs
> can be found in "Development and Evaluation of Context Aware
> Messaging Service..." by Nakanishi et al, Proceedings of the
> 7th Intl. Workshop on Mob. Multimed. Comm. (2000).
> 
> Cheers,
> -- 
> Jani PATOKALLIO / jpatokal@iki.fi / +81 90 7722 3557
> Sanpo Laboratory, Mechano-Informatics Dept., University of Tokyo
> ヤニ・パトカリオ / jani@sanpo.t.u-tokyo.ac.jp / 090 7722 3557
> 東京大学、工学系研究科、機械情報工学科、算法設計研究室
> 
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> 
> 


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