A method and system for remotely controlling an appliance including a first wireless communication port is disclosed. In one aspect, the method and system provide a portable digital device for remotely controlling an appliance. The portable digital device includes a processor, a second wireless communication...http://www.google.de/patents/US6507762?utm_source=gb-gplus-sharePatent US6507762 - Method and system for remotely controlling an appliance using a personal digital assistant
