Patent ID: 11943420
Assignee: TOBII AB
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 9:
10. A user-monitoring system, comprising:
a first recording device configured to output a first data stream and a second recording device configured to output a second data stream, wherein each of the first and second data streams include data relating to an eye of the user and wherein the first data stream and second data stream overlap temporally; and
a processor configured to:
process the first data stream to determine a first blink sequence of the user;
process the second data stream to determine a second blink sequence of the user;
compare the first blink sequence and the second blink sequence to detect a blink pattern present in both the first blink sequence and the second blink sequence, wherein the comparison is by way of determining a time between adjacent blinks in the first blink sequence and second blink sequence; and
determine a temporal offset of the first data stream and the second data stream by comparing respective positions of the blink pattern in the first data stream and the second data stream.