Deutschetelekom Ag

University of Illinois

Pablo Vidales

Petros Zerfos

Jatinder Pal Singh

Anatolij Zubow

Haiyun Luo

Nathanael A Thompson

Shiva Kumar Sundaram

Rudi Haas

Robert Sombrutzki

Marcin Solarski

The invention relates to a method and apparatus of processing at least one multimedia document, comprising the steps of determining at least one segment of the document, and assigning at least one type of permission to said at least one segment, wherein the type of permission assigned to a segment of the document is available for later use when processing the document.

Method and system of processing annotated multimedia documents using granular and hierarchical permissions

A method for organizing an architecture of access points in a distributed wireless network includes measuring interference between the access points, assigning radiofrequency channels to the access points based on the measured interference and creating distributed antenna groups of multiple access points operating on a same radio frequency channel. A distributed wireless network includes a plurality of access points and a central controller connected to the access points via a common backbone, the central controller being configured to assign radio frequency channels to the access points according to the method.

Method and system for improving quality of service in distributed wireless networks

A method for controlling Internet access of a mobile device by using a communication system having a number of access points includes the steps of performing a certificate-based authentication between an authentication access point and a mobile device seeking access to the Internet; transmitting a certificate from the mobile device to the authentication access point; verifying the certificate by the authentication access point; determining whether the authenticating mobile device's certificate has been revoked prior to the expiration of its lifetime; and granting the authenticating mobile device access to the Internet, if the certificate has been verified successfully and not revoked prior to the expiration of its lifetime.

Method and system for distributed, localized authentication in the framework of 802.11

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Las Americas Naucalpan Edo, Mexico

Pablo Vidales