A system for high accuracy calibration of a scanning system, which provides an object for calibration of a known geometry, such as a plane or a sphere. Upon that object is marked a pattern of points or geometric shapes, such as a set of equilateral triangles or their vertices. A set of computer programmed...http://www.google.es/patents/US5991437?utm_source=gb-gplus-sharePatente US5991437 - Modular digital audio system having individualized functional modules
Modular digital audio system having individualized functional modules