Patent ID: 6064721
Filing Date: 2000-05-16
Classification: H04M

Abstract:
An instrument, comprising in combination a base unit and an application module,said base unit providing predetermined non-application-specific functions, and adapted to be assembled to a single corresponding application-specific application module selected from a group thereof, each application module mating with said base unit in accordance with a predetermined physical and electrical interface, andeach said application module storing application-specific program data and software and providing application-specific physical interface means for providing predetermined application-specific communication with an apparatus, device, or system to be tested,wherein when said base unit and a corresponding application module have been cooperatively assembled, the combination is capable of performing one or more predetermined end-user functions, the end-user functions provided by a given application module being specific to a single application, andwherein neither said base unit nor said application module is operable to perform end-user functions without the other.