Abstract: A fiber optic switch includes a plurality of optical modules that selectively direct light between optical fibers. Each optical module includes an optical fiber, and a light beam steering mechanism for directing light from or to an optical fiber. A processor within the optical module, and an optical detector form a control circuit such that each optical module can align light from fibers within the optical switch. In one embodiment, the beam steering mechanism includes one or more piezoelectric motors that position lenses in front of an optical fiber. The capacity of the fiber optic switch can be increased or decreased by adding or removing optical modules from the switch.

Abstract: A method and apparatus for protecting software used in an electronic system. An electronic key is associated with the software, which is at least partially unreadable unless modified. The electronic system using the software to be protected receives the electronic key, and reads the software to determine that the electronic key and software are associated. The system then modifies the software to render it readable and identifies the software with the electronic system by storing an identifier of the system with the software. Finally, the system modifies the electronic key to render it useless.