Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7036002 | System and method for using multiple working memories to improve microprocessor security | — | 2006-04-25 |
| 6839849 | Smart integrated circuit | Yvon Gressus, Christoph Siegelin | 2005-01-04 |
| 5944833 | Integrated circuit and method for decorrelating an instruction sequence of a program | — | 1999-08-31 |
| 5825875 | Process for loading a protected storage zone of an information processing device, and associated device | — | 1998-10-20 |
| 5815083 | Process for entry of a confidential piece of information and associated terminal | Jacques Patarin | 1998-09-29 |
| 5566323 | Data processing system including programming voltage inhibitor for an electrically erasable reprogrammable nonvolatile memory | — | 1996-10-15 |
| 5479509 | Method for signature of an information processing file, and apparatus for implementing it | — | 1995-12-26 |
| 5442645 | Method for checking the integrity of a program or data, and apparatus for implementing this method | Andre Oisel | 1995-08-15 |
| 5341421 | Security device, including a memory and/or a microcomputer for data processing machines | — | 1994-08-23 |
| 4907272 | Method for authenticating an external authorizing datum by a portable object, such as a memory card | Michel Hazard | 1990-03-06 |
| 4825052 | Method and apparatus for certifying services obtained using a portable carrier such as a memory card | Francois Chemin | 1989-04-25 |
| 4807288 | Microprocessor intended particularly for executing the calculation algorithms of a public code encoding system | Louis Guillou | 1989-02-21 |
| 4795893 | Security device prohibiting the function of an electronic data processing unit after a first cutoff of its electrical power | — | 1989-01-03 |
| 4656342 | Method and apparatus for authorizing the holder of a portable object such as a card to gain access to at least one service provided by at least one authorizing entity | — | 1987-04-07 |
| 4591945 | Device for protecting electronic circuits against electrostatic charges | — | 1986-05-27 |
| 4556958 | Device for single line bidirectional data transmission between an intelligent card's microprocessor and a second processor | — | 1985-12-03 |
| 4544833 | Process and apparatus for authenticating or certifying at least one item of information contained in a memory of a removable and portable electronic carrier, such as a card | — | 1985-10-01 |
| 4538058 | Power supply system of a device designed to cooperate with a removable electronic medium such as a card and device equipped with such a system | Serge Fouchard | 1985-08-27 |
| 4523297 | Hand-held processor with two-way dialog between microprocessor in case and microprocessor on carrier insertable into casing slot | Jean-Pierre Nonat | 1985-06-11 |
| 4450535 | System and method for authorizing access to an article distribution or service acquisition machine | Bertrand J. C. H. de Pommery | 1984-05-22 |
| 4442345 | Apparatus for and method of recycling recording carriers, such as credit cards, including non-volatile erasable memories for identification data | Jean H. Mollier | 1984-04-10 |
| 4382279 | Single chip microprocessor with on-chip modifiable memory | — | 1983-05-03 |
| 4295041 | Device for the protection of access to a permanent memory of a portable data carrier | — | 1981-10-13 |
| 4264917 | Flat package for integrated circuit devices | — | 1981-04-28 |
| 4211919 | Portable data carrier including a microprocessor | — | 1980-07-08 |