The systems and methods described herein provide communication systems that allow for the transmission of voice and data over a wireless network. To that end, the systems described herein include a mobile wireless communication system, such as a GSM telephone, and a pen input device capable of collecting...http://www.google.com.au/patents/US6311042?utm_source=gb-gplus-sharePatent US6311042 - Apparatus and methods for imaging written information with a mobile telephone set
