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Device having automatic process for upgrading the performance of mobile systems

  • US 5,687,398 A
  • Filed: 10/20/1995
  • Issued: 11/11/1997
  • Est. Priority Date: 04/28/1993
  • Status: Expired due to Term
First Claim
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1. A communications system comprising:

  • an electronic service center;

    a communications interface, said communications interface being coupled to said electronic service center; and

    a chip card, said chip card being coupled to said communications interface, said chip card comprising an electronic chip, said electronic chip includinga microprocessor,a reserved memory zone, said reserved memory zone being coupled to said microprocessor, anda program memory, said program memory being coupled to said reserved memory zone and to said microprocessor, said program memory including an automatic process said automatic process comprising an automatic process instruction, said automatic process instruction having data elements defining the characteristics of a supplementary instruction, and said automatic process defining meansfor executing said automatic process instruction, wherein said execution of said automatic process instruction includes a writing of said characteristics of said supplementary instruction in said reserved memory zone of said chip card, and a designation of an address of said reserved memory zone,for ascertaining that said automatic process instruction designates an address of said reserved memory zone, andfor automatically executing said supplementary instruction after said characteristics of said supplementary instruction have been written in said reserved memory zone, said automatic execution occurring contingent upon said ascertainment of said designation.

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