Patent ID: 8046798

Claim:
A method of differentiating viewers interacting with a content presentation device, the method comprising: (a) monitoring a first plurality of inputs from at least one first viewer to the content presentation device during a first session, wherein the first plurality of inputs form at least one first session profile; (b) merging, based on a correlation threshold, the at least one first session profile into at least one signature profile, wherein the at least one signature profile is formed independently of viewer characteristics stored in the content presentation device prior to the monitoring of (a); (c) monitoring a second plurality of inputs from a second viewer to the content presentation device during a second session, wherein the second plurality of inputs form at least one second session profile; (d) comparing the at least one second session profile to the at least one signature profile; and (e) identifying a matching signature profile corresponding to the at least one second session profile if the at least one signature profile is sufficiently correlated to the second session profile, wherein the matching signature profile is selected from the at least one signature profile.