Daniel P. Homiller

System and method for presenting multiple transaction options in a portable device

Method and Apparatus for Routing Emergency Calls in a VoIP System

Shared key encryption using long keypads

Wireless hands-free system with silent user signaling

Handover for Audio and Video Playback Devices

Methods and apparatus for generating upgraded software from initial software and software upgrade packages

Method and system for registration of licensed modules in mobile devices

Broadcast content request for mobile devices

Multimedia distributing and/or playing systems and methods using separate resolution-enhancing supplemental data

Downloadable content delivery management using a presence server