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...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!

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Assignee: Bull CP8


Location: Louveciennes, FR
No. of patents: 24

NumberTitleIssue Date
6952820Data compaction method for an intermediate object code program executable in an onboard system provided with data processing resources and corresponding onboard system with multiple applications
The invention concerns a data compaction method and system for an intermediate program. The method consists in searching the program (1000) for identical sequences (Si) and counting Ni number of occurrences of each sequence (Si), a comparison test (1001
10/04/2005
6839756On board system comprising network interface means, and method for activating applications located in said on-board system
The invention relates to a method for activating one (Ai) of the applications (Ai-An) of an on-board or embedded system, particularly of a chip card (2a) connected to a terminal (1) equipped with a reader, by mea...
01/04/2005
6839849Smart integrated circuit
The present invention relates to a smart integrated circuit. This smart integrated circuit is characterized in that it has a main processor (1) and an operating system executing a main program (P1) for constituting a main task-performing process...
01/04/2005
6810521Protocol for internal exchange of data between applications of a portable multi-application object and corresponding portable multi-application object
The invention relates to a protocol for exchanging data between applications of a portable multi-application object, such as a microprocessor or smart card. An internal communications interface is implanted in the nonvolatile memory of the smart card. Given a messag...
10/26/2004
6751671Method of communication between a user station and a network, in particular such as internet, and implementing architecture
A method and architecture for communication between a terminal (1) and a smart card, said terminal being operatively connected to a smart card reader (3) and a data transmission network (RI). The terminal includes an initial stack of network (RI) acces...
06/15/2004
6735627System and method of smart card for managing transmissions of multimedia data via an internet-type network, in particular telephone or videophone data, between subscriber systems
The invention relates to a method for managing data transmissions via an internet network (RI) between calling (Aa) and called (Ab) subscribers and also an associated smart card. A card (2a) cooperates with a terminal (1a) and has client/...
05/11/2004
6687800Chip card comprising means and method for managing a virtual memory and associated communication method
The invention relates to a chip card (21) including an information processing means and main information storage means, which operates to load and unload a programmable memory as a function of the need for the program run by the card and for applicative d...
02/03/2004
6658566Process for storage and use of sensitive information in a security module and the associated security module
The invention relates to a process for storing and using sensitive information in a security module and to a security module arranged to implement the process, and protect the sensitive information against fraudulent utilization. The sensitive information...
12/02/2003
6657956Method enabling secure access by a station to at least one server, and device using same
A process for protecting accesses to at least one server (30) is characterized in that it makes it possible to protect accesses originating from user stations (2) whose destination is at least one application server through a network (42) using a multises...
12/02/2003
6658569Secret key cryptographic process for protecting a computer system against attacks by physical analysis
The invention relates to a secret-key cryptographic calculation process for protecting a computer system against physical attacks, wherein a) the standard cryptographic calculation process is separated into several distinct, parallel process parts using p...
12/02/2003
6651881Card, in particular chip card, reading device
The invention relates to a card (7) reading device (1) comprising a housing (10) equipped with a keyboard (5), a display unit (4), a slot (8) for inserting a card (7) into the housing (10) and a cover (2) adapted to be pivoted between an open and closed p...
11/25/2003
6568600Chip card equipped with a loop antenna, and associated micromodule
A chip card includes a body of electrically insulating layers, one of which carries an open loop antenna having two ends. The body is equipped with a cavity for housing a micromodule adapted for connection to the antenna by two terminals. The micromodule ...
05/27/2003
6567539Method for producing an image using a portable object
The invention relates to a method for producing a predetermined image by means of a device (40) and a portable object (8), the device including data processing means, data memorizing means, and image processing means, and the portable object including dat...
05/20/2003
6536034Method for modifying code sequences and related device
The present invention relates to a process and a device for modifying code sequences written into a first memory (2) of a medium. A central processing unit (1) executes code sequences and the first memory contains a main program comprising at least one co...
03/18/2003
6523056Process for secure comparison of two storage registers, and security module implementing this process
The invention relates to a process for securely comparing two main storage registers, comprising defining an auxiliary storage register (A), calculating a first sum of the words composing the auxiliary storage register, comparing the words of the two main...
02/18/2003
6472733Electronic circuit support comprising tear resistant means
The invention relates to a substrate for an electronic circuit (9), the electronic circuit carrying at least one contact pad, the substrate comprising an insulating element (3, 12) housing the electronic circuit and carrying, on an external side, a conduc...
10/29/2002
6422470Process for secure processing of a sensitive logical element in a storage register, and security module implementing this process
The invention relates to a process for the secure processing of a sensitive logical element (S2) in a storage register (30) containing several words (31-38), each formed of several logical elements (L1-L8, S1-S8). The process comprises: defining a first a...
07/23/2002
6253163Portable object reader terminal and process for self-diagnosis and supervision of same
A terminal includes a memory in which is stored an application program and further includes at least one output constituted either by a display, or by a printer, or by a communications network, or by a portable object. The terminal cooperates with a porta...
06/26/2001
6203330Method for communicating with a portable data medium
The invention relates to a card reading device for communicating with a portable data medium (2) such as a credit card or smart card. The reader included at least one first electrical contact (44) that cooperates with at least one second electrical contac...
03/20/2001
5889272Coupler for managing communication between a portable data medium and a data exchange device, and data exchange device therefor
A coupler for managing communication between a portable data medium and a data exchange device. The coupler includes bistable control circuitry (25) input-activated by at least two control signals (DTR, RTS) delivered by the data exchange device in one of...
03/30/1999
5815083Process for entry of a confidential piece of information and associated terminal
With confidential information being composed of authenticating signs which belong to a first series, a second series of signs or designating symbols is defined, the first and second series of signs are displayed in a relatively random position, and this p...
09/29/1998
5796835Method and system for writing information in a data carrier making it possible to later certify the originality of this information
The invention consists of writing at least one piece of information ›I! and an image ›I'! thereof into the accessible memory zone Ac of a portable object (1). This image ›I'! is obtained by implementing a program of encipherment of the information ›I!...
08/18/1998
5528231Method for the authentication of a portable object by an offline terminal, and apparatus for implementing the process
A process for authentication by an offline terminal (1) of a portable object (2) including a processing circuit (4) able to deliver a secondary value (Rx) which the function of a primary value (Qi) transmitted by the terminal. An authentication table (5) ...
06/18/1996
5479509Method for signature of an information processing file, and apparatus for implementing it
The invention relates to a method for signature of a primary information processing file (FP), of the type consisting of causing circuits of an information processing device (1, 3, 4) to calculate at least one signature (SG) of the file, by using at least...
12/26/1995
 
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