WO/2009/032522 is referenced by 3 patents.
An electronic device (1005) includes a data processor (106) and data communication mechanism (180) for transmitting, via an optical link (1081), configuration and authentication requests and information for a second data communication link (1083) to an external device (1006) and for transmitting other content data via the second data communication link that is configured using the configuration data transmitted on the optical link. Data communication on the optical link is provided via modulated optical pulses from an illumination light source (145) of the electronic device. The light source is selectively utilized for illuminating a component (140) in the electronic device and for transmitting configuration and authentication data via optical pulses. An optical receiver (170) also receives optically transmitted configuration and acknowledgement data from the external device.