Abstract: The present invention is a camera control system designed for video capture of a presentation made in a lecture hall or similar place. The system combines preset views triggered by presence-sensing devices at fixed locations with views tracking the motion of the presenter elsewhere. A tracking camera displays a preset view when the presenter steps on a switch mat or enters into the region of detection of some other presence sensor such as an infrared sensor. At other times, the tracking camera is guided by motion detection logic that uses a wide field of vision provided by a reference camera. The reference camera, the tracking camera, and the presence-sensing devices are integrated by a controller. Various parameters can be configured by a user through a graphical user interface on a computer, manual controls on the box housing the controller, or a hand-held remote control device.

Abstract: Disclosed is a closure catheter, for closing a tissue opening such as an atrial septal defect, patent foreman ovale, or the left atrial appendage of the heart. The closure catheter carries a plurality of tissue anchors, which may be deployed into tissue surrounding the opening, and used to draw the opening closed. Methods are also disclosed.

Abstract: A system and method using microcoded marks provides retrospective identification of articles. An article is marked with microparticles having multiple layers. The particles form a unique spatial pattern on the article. An image is made of the mark as applied to the article. The digitized image is stored in a database with information about the article. The database can be accessed by users to verify the authenticity of an article.