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	<title>Comments on: Path Intelligence Monitors Foot Traffic in Retail Stores By Pinging People&#8217;s Phones</title>
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	<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/</link>
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	<pubDate>Fri, 05 Sep 2008 16:33:38 +0000</pubDate>
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		<title>By: Library clips :: Mobile motion presence and location awareness :: October :: 2007</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-2421786</link>
		<dc:creator>Library clips :: Mobile motion presence and location awareness :: October :: 2007</dc:creator>
		<pubDate>Mon, 28 Jul 2008 12:08:54 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-2421786</guid>
		<description>[...] [ADDED 12/2/08: Path Intelligence Monitors Foot Traffic in Retail Stores By Pinging People’s Phones] [...]</description>
		<content:encoded><![CDATA[<p>[...] [ADDED 12/2/08: Path Intelligence Monitors Foot Traffic in Retail Stores By Pinging People’s Phones] [...]</p>
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		<title>By: indian</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1873717</link>
		<dc:creator>indian</dc:creator>
		<pubDate>Tue, 25 Dec 2007 19:49:27 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1873717</guid>
		<description>I hate about the Indian stuff being talked here. Just because you havent seen what great work can happen somwhere, does not mean it doesnt happen there at all. 

Goes on to show who is really 'inexperienced' here.  And yes, if one has little experience, one shouldnt generalize.

And moreover when PI now says its not Made in India...!</description>
		<content:encoded><![CDATA[<p>I hate about the Indian stuff being talked here. Just because you havent seen what great work can happen somwhere, does not mean it doesnt happen there at all. </p>
<p>Goes on to show who is really &#8216;inexperienced&#8217; here.  And yes, if one has little experience, one shouldnt generalize.</p>
<p>And moreover when PI now says its not Made in India&#8230;!</p>
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		<title>By: Adam</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1854717</link>
		<dc:creator>Adam</dc:creator>
		<pubDate>Wed, 19 Dec 2007 09:25:49 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1854717</guid>
		<description>Techcrunch, kudos for your article TITLE's: no cruft, skimmable, complete.</description>
		<content:encoded><![CDATA[<p>Techcrunch, kudos for your article TITLE&#8217;s: no cruft, skimmable, complete.</p>
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		<title>By: Toby Oliver</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1847300</link>
		<dc:creator>Toby Oliver</dc:creator>
		<pubDate>Sun, 16 Dec 2007 18:08:02 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1847300</guid>
		<description>I work at Path Intelligence and I thought I should try and reply to a few points in the comments.

Firstly, in terms of frequency of updates we don't pretend to get updates every few seconds its more in the order of minutes. Having said that a phone will transmit in a number of circumstances even without being a call (sending/receiving a text message, location updates, authentication  requests from the operator), and actually we have found (contrary to what we originally thought) shoppers tend to use their phone a lot.  Just one more thing, we are based in the UK and the penetration of cell phones here is 108%, so we pretty much get everybody.  

Secondly accuracy. As the article states up to 1m is possible, but currently we don't need to get to that level as most of our installations are in shopping malls, so we only need to know which store the shopper is in.  

Thirdly, some of the commenters asked why we didn't choose another tracking methodology, such as RFID or cameras?  We certainly looked at that, but both of those options are expensive when you are trying to 'track' people flow through a large area.  To cover a whole shopping mall would require a lot of RFID readers or cameras, and even then we would need to make sure that people carried their RFID tag with them.  On the other hand, research in the UK and in the US (in Boston to be precise) shows that 98% of individuals have a cell phone that is on and with them when they are out and about.

A good analog for what we do is the analysis of web logs to understand web page viewing patterns. You don't get detailed answers on everyone (often people are behind firewalls) and you will not be able to see exactly how people read each page, but you will get very good information on how they navigated the site, and, over time and many viewers you will get to know the pages that are popular, and the order in which people view them. Just replace web page with store and you get the idea on what we are doing.

I should probably reiterate the anonymous aspect. As we don't work with the network operators we don't know who you are you are, we just see a number (in a similar way that only an ISP would know who is on a particular
DHCP assigned IP address).

Oh and one more thing, our web developer isn't in India but they do like
the 80's  ;) .

If anyone would like more detailed information please email at the web address on our site.</description>
		<content:encoded><![CDATA[<p>I work at Path Intelligence and I thought I should try and reply to a few points in the comments.</p>
<p>Firstly, in terms of frequency of updates we don&#8217;t pretend to get updates every few seconds its more in the order of minutes. Having said that a phone will transmit in a number of circumstances even without being a call (sending/receiving a text message, location updates, authentication  requests from the operator), and actually we have found (contrary to what we originally thought) shoppers tend to use their phone a lot.  Just one more thing, we are based in the UK and the penetration of cell phones here is 108%, so we pretty much get everybody.  </p>
<p>Secondly accuracy. As the article states up to 1m is possible, but currently we don&#8217;t need to get to that level as most of our installations are in shopping malls, so we only need to know which store the shopper is in.  </p>
<p>Thirdly, some of the commenters asked why we didn&#8217;t choose another tracking methodology, such as RFID or cameras?  We certainly looked at that, but both of those options are expensive when you are trying to &#8216;track&#8217; people flow through a large area.  To cover a whole shopping mall would require a lot of RFID readers or cameras, and even then we would need to make sure that people carried their RFID tag with them.  On the other hand, research in the UK and in the US (in Boston to be precise) shows that 98% of individuals have a cell phone that is on and with them when they are out and about.</p>
<p>A good analog for what we do is the analysis of web logs to understand web page viewing patterns. You don&#8217;t get detailed answers on everyone (often people are behind firewalls) and you will not be able to see exactly how people read each page, but you will get very good information on how they navigated the site, and, over time and many viewers you will get to know the pages that are popular, and the order in which people view them. Just replace web page with store and you get the idea on what we are doing.</p>
<p>I should probably reiterate the anonymous aspect. As we don&#8217;t work with the network operators we don&#8217;t know who you are you are, we just see a number (in a similar way that only an ISP would know who is on a particular<br />
DHCP assigned IP address).</p>
<p>Oh and one more thing, our web developer isn&#8217;t in India but they do like<br />
the 80&#8217;s  <img src='http://www.techcrunch.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> .</p>
<p>If anyone would like more detailed information please email at the web address on our site.</p>
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		<title>By: Things I Learned This Week &#171; Kreblog</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1844813</link>
		<dc:creator>Things I Learned This Week &#171; Kreblog</dc:creator>
		<pubDate>Sat, 15 Dec 2007 18:59:06 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1844813</guid>
		<description>[...] are going to track where you go via your cell phone&#160;(just [...]</description>
		<content:encoded><![CDATA[<p>[...] are going to track where you go via your cell phone&nbsp;(just [...]</p>
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		<title>By: links for 2007-12-15 &#124; www-webhosting.cz</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1844113</link>
		<dc:creator>links for 2007-12-15 &#124; www-webhosting.cz</dc:creator>
		<pubDate>Sat, 15 Dec 2007 12:21:30 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1844113</guid>
		<description>[...] Path Intelligence Monitors Foot Traffic in Retail Stores By Pinging People’s Phones Path Intelligence is a U.K. based company that monitors foot traffic in a rather ingenious way, through customers’ cell phones. (tags: Mobile) [...]</description>
		<content:encoded><![CDATA[<p>[...] Path Intelligence Monitors Foot Traffic in Retail Stores By Pinging People’s Phones Path Intelligence is a U.K. based company that monitors foot traffic in a rather ingenious way, through customers’ cell phones. (tags: Mobile) [...]</p>
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		<title>By: Hustled by NING</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1841876</link>
		<dc:creator>Hustled by NING</dc:creator>
		<pubDate>Sat, 15 Dec 2007 00:48:14 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1841876</guid>
		<description>#29:  if I am correct, the RACH bears the TMSI  ( the TEMPORARY mobile subscriber id) which is assigned to a cellphone a regularly renewed.  for security reason the users does not send its IMSI but  TMSI which changes regularly.

so I GUESS ( not really sure) that tracking RACH does not allow you to check if you have seen this user before</description>
		<content:encoded><![CDATA[<p>#29:  if I am correct, the RACH bears the TMSI  ( the TEMPORARY mobile subscriber id) which is assigned to a cellphone a regularly renewed.  for security reason the users does not send its IMSI but  TMSI which changes regularly.</p>
<p>so I GUESS ( not really sure) that tracking RACH does not allow you to check if you have seen this user before</p>
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		<title>By: Stratta Park</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1841234</link>
		<dc:creator>Stratta Park</dc:creator>
		<pubDate>Fri, 14 Dec 2007 21:28:37 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1841234</guid>
		<description>This is the exact reason why I initially started Stratta Park, I submitted this proof of concept and provisional patent to my employer (Major Cell Phone Manufacturing Company) and they turned it down!

Our team actually has a further proof of concept for geocentric usage within cell phones, if anyone's interested let me know partners@strattapark.com,

I also want to thank Tech Crunch for allowing me to view everything Business 2.0 use to offer before it was acquired, thanks guys.</description>
		<content:encoded><![CDATA[<p>This is the exact reason why I initially started Stratta Park, I submitted this proof of concept and provisional patent to my employer (Major Cell Phone Manufacturing Company) and they turned it down!</p>
<p>Our team actually has a further proof of concept for geocentric usage within cell phones, if anyone&#8217;s interested let me know <a href="mailto:partners@strattapark.com">partners@strattapark.com</a>,</p>
<p>I also want to thank Tech Crunch for allowing me to view everything Business 2.0 use to offer before it was acquired, thanks guys.</p>
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		<title>By: BetterRetail</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1841185</link>
		<dc:creator>BetterRetail</dc:creator>
		<pubDate>Fri, 14 Dec 2007 21:09:30 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1841185</guid>
		<description>Its no more scary than the video cameras following us around 24/7.</description>
		<content:encoded><![CDATA[<p>Its no more scary than the video cameras following us around 24/7.</p>
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		<title>By: doug mitchell</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1841160</link>
		<dc:creator>doug mitchell</dc:creator>
		<pubDate>Fri, 14 Dec 2007 21:01:55 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1841160</guid>
		<description>Why not just ask the customer if they'd mind if you'd be willing to slap on a $.20 RFID tag for a $5 coupon and track it that way.  There's your permission.  No whiz bang.</description>
		<content:encoded><![CDATA[<p>Why not just ask the customer if they&#8217;d mind if you&#8217;d be willing to slap on a $.20 RFID tag for a $5 coupon and track it that way.  There&#8217;s your permission.  No whiz bang.</p>
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		<title>By: skincancerprevention.info</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1841142</link>
		<dc:creator>skincancerprevention.info</dc:creator>
		<pubDate>Fri, 14 Dec 2007 20:55:31 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1841142</guid>
		<description>Skin cancer prevention means staying out of the sun. The sun is the leading cause of skin cancer. Too many sunburns, too much tanning, or just spending a lot of time in the sun is bad for your skin if you are not protected. Fair skinned and light haired people are more at risk. In this group of people, children, people who play outdoor sports a lot, outdoor workers, etc. are included.</description>
		<content:encoded><![CDATA[<p>Skin cancer prevention means staying out of the sun. The sun is the leading cause of skin cancer. Too many sunburns, too much tanning, or just spending a lot of time in the sun is bad for your skin if you are not protected. Fair skinned and light haired people are more at risk. In this group of people, children, people who play outdoor sports a lot, outdoor workers, etc. are included.</p>
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		<title>By: Rich Page</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1841096</link>
		<dc:creator>Rich Page</dc:creator>
		<pubDate>Fri, 14 Dec 2007 20:36:51 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1841096</guid>
		<description>Very interesting idea - it ties into a blog post I wrote about the differences between shopping online and shopping in a store, and mentions others:
http://rich-page.com/web-analytics/7-reasons-why-shopping-online-beats-real-shopping


Rich Page</description>
		<content:encoded><![CDATA[<p>Very interesting idea - it ties into a blog post I wrote about the differences between shopping online and shopping in a store, and mentions others:<br />
<a href="http://rich-page.com/web-analytics/7-reasons-why-shopping-online-beats-real-shopping" rel="nofollow">http://rich-page.com/web-analy.....l-shopping</a></p>
<p>Rich Page</p>
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		<title>By: Greg</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1841008</link>
		<dc:creator>Greg</dc:creator>
		<pubDate>Fri, 14 Dec 2007 19:53:09 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1841008</guid>
		<description>Forget 'every few minutes', nano in the carpets are watching your every footstep!</description>
		<content:encoded><![CDATA[<p>Forget &#8216;every few minutes&#8217;, nano in the carpets are watching your every footstep!</p>
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		<title>By: John</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840957</link>
		<dc:creator>John</dc:creator>
		<pubDate>Fri, 14 Dec 2007 19:33:36 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840957</guid>
		<description>So 100 customers come into my store and 2 of them are talking on their cell phone.  Next day only 10 customers come into my store and 6 of them are talking on the phone.  That means I had 3x the customers on Day 2 versus Day 1?</description>
		<content:encoded><![CDATA[<p>So 100 customers come into my store and 2 of them are talking on their cell phone.  Next day only 10 customers come into my store and 6 of them are talking on the phone.  That means I had 3x the customers on Day 2 versus Day 1?</p>
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		<title>By: Alx</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840910</link>
		<dc:creator>Alx</dc:creator>
		<pubDate>Fri, 14 Dec 2007 19:10:58 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840910</guid>
		<description>#25 was wondering if you whether or not the RACH was identifiable in some fashion? Specifically would they be able to store the RACH  ID (or whatever identifies as that phone, etc.. like a mac address?) allowing them to determine if they have seen that RACH before?

tx</description>
		<content:encoded><![CDATA[<p>#25 was wondering if you whether or not the RACH was identifiable in some fashion? Specifically would they be able to store the RACH  ID (or whatever identifies as that phone, etc.. like a mac address?) allowing them to determine if they have seen that RACH before?</p>
<p>tx</p>
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		<title>By: chrisco</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840877</link>
		<dc:creator>chrisco</dc:creator>
		<pubDate>Fri, 14 Dec 2007 18:58:48 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840877</guid>
		<description>pardon the typos :)</description>
		<content:encoded><![CDATA[<p>pardon the typos <img src='http://www.techcrunch.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /></p>
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		<title>By: chrisco</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840872</link>
		<dc:creator>chrisco</dc:creator>
		<pubDate>Fri, 14 Dec 2007 18:57:31 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840872</guid>
		<description>@ 26 I think #24's "premise" (is that a 5-cent word, perhaps from Atlas Shrugged) must have been the general decrease in privacy that modern life entails...  it's a trend...  and the trend will continue...  where will it stop?  will it ever stop?  I suspect that's what #24 was alluding to.  I mean unless they are are clueless, which is quite possible if he things triangulating on mobile phone pings is "brilliant" and new, but maybe someone else is clueless one or the one who didn't stop and ponder how or why this discussion, if you can call it that, could elicit a "scary" comment. Cheers and just having fun ;-)</description>
		<content:encoded><![CDATA[<p>@ 26 I think #24&#8217;s &#8220;premise&#8221; (is that a 5-cent word, perhaps from Atlas Shrugged) must have been the general decrease in privacy that modern life entails&#8230;  it&#8217;s a trend&#8230;  and the trend will continue&#8230;  where will it stop?  will it ever stop?  I suspect that&#8217;s what #24 was alluding to.  I mean unless they are are clueless, which is quite possible if he things triangulating on mobile phone pings is &#8220;brilliant&#8221; and new, but maybe someone else is clueless one or the one who didn&#8217;t stop and ponder how or why this discussion, if you can call it that, could elicit a &#8220;scary&#8221; comment. Cheers and just having fun <img src='http://www.techcrunch.com/wp-includes/images/smilies/icon_wink.gif' alt=';-)' class='wp-smiley' /></p>
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		<title>By: PookieBadmuffin</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840809</link>
		<dc:creator>PookieBadmuffin</dc:creator>
		<pubDate>Fri, 14 Dec 2007 18:29:28 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840809</guid>
		<description>Scary?  Scary how?

They can already see you in the store.  They can already get your name, address, phone number, and credit card when you buy something.  So can anyone looking over your shoulder if you're a dinosaur and paying by check.  Any stranger could sketch your likeness on paper, if they wanted.

Check your premise.  It's not scary.  It's practically comforting.</description>
		<content:encoded><![CDATA[<p>Scary?  Scary how?</p>
<p>They can already see you in the store.  They can already get your name, address, phone number, and credit card when you buy something.  So can anyone looking over your shoulder if you&#8217;re a dinosaur and paying by check.  Any stranger could sketch your likeness on paper, if they wanted.</p>
<p>Check your premise.  It&#8217;s not scary.  It&#8217;s practically comforting.</p>
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		<title>By: Hustled by NING</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840807</link>
		<dc:creator>Hustled by NING</dc:creator>
		<pubDate>Fri, 14 Dec 2007 18:29:16 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840807</guid>
		<description>LET ME CLARIFY HOW THIS WORKS -

There is an error in the statement which is raising all these questions : THE following statement is WRONG: «This is a similar, but more precise method than Google Maps is using to detect your general location on your mobile phone by cell tower »

Google uses triangulation of the signals received by several towers in order to pinpoint your location. This happens when somebody is actually TALKING over the phone or is BROWSING the NET.

Path Intelligence uses what is called PERIODIC LOCATION UPDATE.  this is a short BURST  ( called a RACH: random access channel)  sent by the handset. It is short but powerful ( 1W or 2W).  If a receive listens to the cellular UPLINK  ( cellular handset-&#62; band) it will detects this bursts.

There are ofcourse many issues related to the accuracy that need to be taken into account.

It is important to remember that Periodic Location Update is done every 2 hours ! 

However when a user makes or receives a call, it also sends RACH bursts ( several at the same time!)</description>
		<content:encoded><![CDATA[<p>LET ME CLARIFY HOW THIS WORKS -</p>
<p>There is an error in the statement which is raising all these questions : THE following statement is WRONG: «This is a similar, but more precise method than Google Maps is using to detect your general location on your mobile phone by cell tower »</p>
<p>Google uses triangulation of the signals received by several towers in order to pinpoint your location. This happens when somebody is actually TALKING over the phone or is BROWSING the NET.</p>
<p>Path Intelligence uses what is called PERIODIC LOCATION UPDATE.  this is a short BURST  ( called a RACH: random access channel)  sent by the handset. It is short but powerful ( 1W or 2W).  If a receive listens to the cellular UPLINK  ( cellular handset-&gt; band) it will detects this bursts.</p>
<p>There are ofcourse many issues related to the accuracy that need to be taken into account.</p>
<p>It is important to remember that Periodic Location Update is done every 2 hours ! </p>
<p>However when a user makes or receives a call, it also sends RACH bursts ( several at the same time!)</p>
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		<title>By: danno</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840735</link>
		<dc:creator>danno</dc:creator>
		<pubDate>Fri, 14 Dec 2007 18:00:05 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840735</guid>
		<description>Brilliant, and a little scary at the same time.  :)</description>
		<content:encoded><![CDATA[<p>Brilliant, and a little scary at the same time.  <img src='http://www.techcrunch.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /></p>
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		<title>By: rod / techwatching.com</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840623</link>
		<dc:creator>rod / techwatching.com</dc:creator>
		<pubDate>Fri, 14 Dec 2007 17:10:49 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840623</guid>
		<description>Huh. I wonder if this is technically feasible, based on folks thoughts on ping-frequency, etc - you'd need a pretty steady stream of pings to get a smooth distribution, or an incredibly high volume of traffic to smooth an erratic distribution over time.

I wonder if camera surveilance wouldn't be as effective a solution? i.e.: just track an individual's path via camera. Stores generally have cameras already, and the technology exists to identify and follow a unique individual. For the sake of "privacy," its simple enough to store their path without storing their image.

I don't know: This seems like too much solution for the problem.</description>
		<content:encoded><![CDATA[<p>Huh. I wonder if this is technically feasible, based on folks thoughts on ping-frequency, etc - you&#8217;d need a pretty steady stream of pings to get a smooth distribution, or an incredibly high volume of traffic to smooth an erratic distribution over time.</p>
<p>I wonder if camera surveilance wouldn&#8217;t be as effective a solution? i.e.: just track an individual&#8217;s path via camera. Stores generally have cameras already, and the technology exists to identify and follow a unique individual. For the sake of &#8220;privacy,&#8221; its simple enough to store their path without storing their image.</p>
<p>I don&#8217;t know: This seems like too much solution for the problem.</p>
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		<title>By: chrisco</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840619</link>
		<dc:creator>chrisco</dc:creator>
		<pubDate>Fri, 14 Dec 2007 17:08:52 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840619</guid>
		<description>Ah, the '80s.  That was nice...  Looks like their site was designed in India.  Not knocking India, but from the little experience I have looking at Indian outsourcing firms, their websites, and many of their reference sites, that's where it looks like it was designed.</description>
		<content:encoded><![CDATA[<p>Ah, the &#8217;80s.  That was nice&#8230;  Looks like their site was designed in India.  Not knocking India, but from the little experience I have looking at Indian outsourcing firms, their websites, and many of their reference sites, that&#8217;s where it looks like it was designed.</p>
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		<title>By: Arno</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840615</link>
		<dc:creator>Arno</dc:creator>
		<pubDate>Fri, 14 Dec 2007 17:07:18 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840615</guid>
		<description>Why not just track shopping-carts, baskets, bags. Sure you mis out on people walking with their own plastic bag but not everyone has a cellphone either.

Maybe just give them a tracking Cookie when they enter the store in different flavours ;-)</description>
		<content:encoded><![CDATA[<p>Why not just track shopping-carts, baskets, bags. Sure you mis out on people walking with their own plastic bag but not everyone has a cellphone either.</p>
<p>Maybe just give them a tracking Cookie when they enter the store in different flavours <img src='http://www.techcrunch.com/wp-includes/images/smilies/icon_wink.gif' alt=';-)' class='wp-smiley' /></p>
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		<title>By: Steve Ballmer</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840600</link>
		<dc:creator>Steve Ballmer</dc:creator>
		<pubDate>Fri, 14 Dec 2007 17:00:24 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840600</guid>
		<description>Now even I didn't think of this! Clever!</description>
		<content:encoded><![CDATA[<p>Now even I didn&#8217;t think of this! Clever!</p>
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		<title>By: Daniel</title>
		<link>http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840545</link>
		<dc:creator>Daniel</dc:creator>
		<pubDate>Fri, 14 Dec 2007 16:36:03 +0000</pubDate>
		<guid isPermaLink="false">http://www.techcrunch.com/2007/12/14/path-intelligence-monitors-foot-traffic-in-retail-stores-by-pinging-peoples-phones/#comment-1840545</guid>
		<description>Thats an amazing idea, but... why does their website look like its from the 80's?</description>
		<content:encoded><![CDATA[<p>Thats an amazing idea, but&#8230; why does their website look like its from the 80&#8217;s?</p>
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