A method and system for conveying contextually relevant information to a wireless client are disclosed. More particularly, a transmitter transmits a diffuse infrared signal to a client having an IrDA compliant communication interface. The transmitter communicates with the client by making a link layer...http://www.google.de/patents/US20030020993?utm_source=gb-gplus-sharePatent US20030020993 - Method and system for infrared data communications
