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Re: [sensors] Device Proximity

From: Doug Turner <doug.turner@gmail.com>
Date: Fri, 11 May 2012 08:38:32 -0700
Cc: Marcos Caceres <w3c@marcosc.com>, Dzung D Tran <dzung.d.tran@intel.com>, Anssi Kostiainen <anssi.kostiainen@nokia.com>, "public-device-apis@w3.org public-device-apis@w3.org" <public-device-apis@w3.org>, Jonas Sicking <jonas@sicking.cc>
Message-Id: <71B66A55-5D00-41D3-BCED-66C92714AF54@mozilla.com>
To: Dave Raggett <dsr@w3.org>

On May 11, 2012, at 8:29 AM, Dave Raggett wrote:

> On 11/05/12 16:13, Doug Turner wrote:
>> I love this kind of input.  It is important to remember that
>> fingerprinting is a concern.  However, I think that you might be
>> better off discussing fingerprinting at the w3 privacy wg.
>> Fingerprinting can be done on many APIs, not just these Device APIs.
>> Do you have a concrete proposal to address these concerns across the
>> main APIs, or are you just waving the fingerprinting flag as a
>> reminder to us all?
> 
> We were discussing the pros and cons of {min, max, value} events versus
> near and far events for proximity. Finger printing is just one of the
> factors to take into account.

Yes, it is.  Just like every API we expose. 

> I would like to better understand the use cases.  Is it mostly about
> sensing when a smart phone is against someone's ear?  I don't really
> understand that for web apps though, unless you are using the web app as
> an audio player or a P2P voice call over Web RTC. Another use case is
> disabling the display or otherwise reducing battery demands when someone
> isn't near the device. In this case, we are presumably talking about
> sensing someone further away from the device. What am I missing about
> the use cases for proximity and web apps?



Games?  Imagine you can use the proximity sensor to control some aspect of the game.  Surely a binary attribute is probably not what you want.

Doug
Received on Friday, 11 May 2012 15:39:04 GMT

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