On January 18, 2019, Unified added a $3,000 contest to PATROLL seeking prior art for US 6,611,289 owned by and asserted by Yanbin Yu and Zhongxuan Zhang. The '289 patent generally relates to using multiple lenses and digital sensors to capture two digital images of a scene, and using one of the digital images to enhance the other.

The contest will expire on April 17, 2019. Please visit PATROLL for more information or to submit an entry for this contest.