ALEXANDRIA, Va., June 16 -- United States Patent no. 12,307,052, issued on May 20, was assigned to Optoma Corp. (New Taipei, Taiwan).
"Projection system, interactive projection method and projector" was invented by Jiun-De Lee (New Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A projection system, an interactive projection method and a projector are provided. The projection system includes an operation pen and a projector. The projector is wirelessly connected to the operation pen. The projector includes at least one processing unit, a projection unit, and a photographing unit. The projection unit is electrically coupled to the at least one processing unit and configured to project an interac...