A portable data device system includes a portable data device and a cradle for receiving the portable data device. The cradle is arranged to recharge the portable data device power supply and/or upload or download information to and from the portable data device. The cradle and portable data device are...http://www.google.de/patents/US20030181168?utm_source=gb-gplus-sharePatent US20030181168 - Terminal with optical reader for locating products in a retail establishment
