Resource energy variation preventing process for e.g. chip card, involves provoking selection of external power source by preventing variations of electrical energy resources supplying electric power to portable intelligent object

摘要

The process involves preventing variations of electrical energy resources (VCC, VDD) supplying electric power to a portable intelligent object, through a contact interface and/or a contactless interface. The variation provokes selection of the external power source. The object communicates with an electronic data transmission terminal through the contact and/or contactless interfaces. Independent claims are also included for the following: (A) a device for preventing power variations provided to an object (B) transmission terminals contacting with a portable intelligent object (C) a portable intelligent object implementing a process of preventing power variations.