In a mobile telephone, position data are obtained from an integral Global Positioning System (GPS) receiver (10) and edited in an editor (14) to provide a fixed number of bits of position and velocity data every second. The data are stored in a buffer (18) until voice samples become available and are...http://www.google.com/patents/US6795698?utm_source=gb-gplus-sharePatent US6795698 - Method and apparatus for embedding global positioning system (GPS) data in mobile telephone call data
