<http://www.patentgenius.com/image/7805483-6.html>
IANAL, but: I would think that RFC 3863 would be dispositive, since it pre-dates the patent application by three years and specifies the "entity" attribute as type "anyURI". As for the "src" and "name" attributes, the claimed mechanism doesn't result in valid XML anyway, so even if you had attributes with those names, they would be in different namespaces (ext:src="..."), thus clearly different from the claimed mechanism.
Maybe the patent can be invalidated on the basis of their consistent use of the word "geospacial"?
--Richard
On Dec 14, 2010, at 12:16 PM, Carl Reed wrote:
> I am sure this group is aware of the TCS patent. Pretty irksome given that PIDF, LO, PIDF-LO, SUPL and so forth are all open, freely available standards. To use an open standard and then patent an idea about how to use an open standard. Give me a break. In all my years in the geospatial industry, I have never seen anything like this. Even more irksome given that the LO is totally generic and application neutral. Also, in the GIS/geotagging community there is I suspect significant prior art.
>
> http://www.patentgenius.com/patent/7805483.html
>
> The format of the Presence Information Data Format--Location Object (PIDF-LO) as defined by the Internet Engineering Task Force (IETF) is extended or modified to accommodate, within the standard PIDF-LO format, an association of geospatial location to virtual content on the Internet. A filename of virtual content is associated with geospatial location information (either a specific location, zone, or direction). The filename is inserted into a <presence . . . > section of a Presence Information Data Format-Location Object (PIDF-LO) compliant document as defined by the Internet Engineering Task Force (IETF). In this way, geospatial location information is associated with Internet based virtual content using a standard PIDF-LO format.
>
> Regards
>
> Carl Reed, PhD
> CTO and Executive Director Specification Program
> Open Geospatial Consortium
> www.opengeospatial.org
>
> The OGC: Making Location Count!
>
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