Patents
Sitemap › G06 - Computing; Calculating; Counting › G06F - Electric digital data processing › G06F 21 - Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
Patents for G06F 21 - Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity (119,294)
04/1985
04/03/1985EP0135888A2 Process for preventing the execution of a programme in a computer which is not allowed to execute said programme
03/1985
03/27/1985EP0135422A1 Programme protection device used by a computer connected to at least one peripheral terminal
03/19/1985US4506342 Document information filing system
03/12/1985CA1183950A1 Method for processing an information signal and means for carrying out the method
02/1985
02/26/1985CA1183276A1 Method for identifying a system-allied physically separable program memory and a data processing system utilizing said method
01/1985
01/16/1985EP0131421A2 User authentication system
01/15/1985US4494114 Security arrangement for and method of rendering microprocessor-controlled electronic equipment inoperative after occurrence of disabling event
01/15/1985CA1181180A1 Computer system key and lock protection mechanism
01/09/1985EP0130218A1 Method of protecting file of numerical control
12/1984
12/19/1984EP0128672A1 Data security device
12/19/1984EP0128362A1 Circuit arrangement comprising a memory and an access control unit
12/12/1984EP0127809A1 Circuit arrangement comprising a memory and an access control unit
12/06/1984WO1984004830A1 Device for a computer terminal connected to a communication network
12/04/1984US4486831 Multi-programming data processing system process suspension
12/04/1984US4486828 Data processing system providing data security through coded identification of accessing terminals
11/1984
11/22/1984WO1984004614A1 Data security device
11/20/1984US4484306 Method and apparatus for controlling access in a data transmission system
11/13/1984US4482953 Computer with console addressable PLA storing control microcode and microinstructions for self-test of internal registers and ALU
10/1984
10/17/1984EP0121853A2 Data processing system having public encryption and private decryption keys
10/03/1984EP0120771A2 Computer installation in civic centres
10/02/1984US4475175 Computer communications control
09/1984
09/26/1984EP0119886A1 Method of protecting software recorded by a supplier on a portable magnetic holder
09/12/1984EP0117930A1 Interactive work station with auxiliary microprocessor for storage protection
09/11/1984US4471163 Software protection system
08/1984
08/14/1984US4466017 Sync suppression scrambling of television signals for subscription TV
08/14/1984US4465901 For protecting a program of executable instructions during execution
08/08/1984EP0115395A2 Computer processor system with software protection
08/01/1984EP0114522A2 ROM protection device
07/1984
07/24/1984US4462078 Computer program protection method
07/24/1984US4462076 Video game cartridge recognition and security system
07/05/1984WO1984002589A1 Method of protecting file of numerical control
07/04/1984EP0112367A1 Software protection methods and apparatus
07/03/1984US4458315 Apparatus and method for preventing unauthorized use of computer programs
06/1984
06/20/1984EP0111130A2 Multi-terminal data processing system
06/12/1984US4454594 Method and apparatus to secure proprietary operation of computer equipment
06/05/1984US4453074 Protection system for intelligent cards
05/1984
05/30/1984EP0109504A2 Protection system for storage and input/output facilities and the like
05/01/1984US4446519 Method and apparatus for providing security for computer software
04/1984
04/11/1984EP0105241A2 Computer system for preventing copying of program
04/10/1984US4442486 Protected programmable apparatus
04/10/1984US4442345 Apparatus for and method of recycling recording carriers, such as credit cards, including non-volatile erasable memories for identification data
03/1984
03/27/1984US4439830 In a data processing system
03/07/1984EP0101772A1 Computer security systems
02/1984
02/28/1984US4434471 Text processing device
02/21/1984US4433207 Cryptographic decoder for computer programs
02/21/1984CA1162655A1 Memory protection system using capability registers
02/07/1984US4430728 Computer terminal security system
02/07/1984US4430709 Apparatus for safeguarding data entered into a microprocessor
01/1984
01/19/1984WO1984000225A1 Method for scrambling digital information and device for implementing such method
01/10/1984CA1160350A1 Multi-programming data processing system process suspension
01/04/1984EP0097621A1 Method for disguising digital information, and device for performing the same
12/1983
12/21/1983EP0096599A1 Method for the authentification or certification of at least one bit of information stored in the memory of an electronic carrier, especially a replaceable and portable one such as a card
12/13/1983CA1158740A1 Terminal providing communication system information output
12/08/1983WO1983004356A1 Software protection methods and apparatus
11/1983
11/15/1983US4415972 Dual port memory interlock
11/02/1983EP0092977A1 Numerical control method and apparatus
10/1983
10/25/1983US4412283 High performance microprocessor system
10/25/1983CA1155966A1 Address translator
10/04/1983US4408274 Memory protection system using capability registers
10/04/1983CA1154876A1 Digital computer having code conversion apparatus for an encrypted program
09/1983
09/28/1983EP0089876A1 Method and device for the protection of software delivered by a supplyer to a user
09/06/1983CA1153474A1 Hardware memory write lock circuit
08/1983
08/16/1983CA1152223A1 Secure implementation of transition machine computer
08/10/1983EP0085117A1 Volatile RAM data protection circuit
08/02/1983US4396979 Microprocessor with improved arithmetic logic unit data path
08/02/1983CA1151298A1 Recording media recycling
07/1983
07/27/1983EP0084441A2 Method and apparatus for the protection of proprietary computer software
07/07/1983WO1983002378A1 Sync suppression scrambling of television signals for subscription tv
07/07/1983WO1983002343A1 Computer terminal security system
07/06/1983EP0083209A2 A microcomputer for processing instructions of different types
06/1983
06/14/1983US4388695 Hardware memory write lock circuit
06/07/1983CA1147823A1 Crypto microprocessor for executing enciphered programs
06/01/1983EP0080244A2 Method of identifying a system - allied, physically separableprogramme memory, and a data processing system using this method.
05/1983
05/31/1983US4386266 Method for operating a transaction execution system having improved verification of personal identification
05/31/1983US4386233 Crytographic key notarization methods and apparatus
05/31/1983CA1147279A1 Text processing device
05/18/1983EP0079133A2 Virtual memory protected system
05/11/1983EP0078326A1 Numerical control system
03/1983
03/22/1983US4377844 Address translator
03/01/1983US4375579 Database encryption and decryption circuit and method using subkeys
12/1982
12/29/1982EP0067875A1 System for executing a program
12/22/1982EP0067611A1 Apparatus for controlling access to computers
12/22/1982EP0067556A2 Digital data processing system
11/1982
11/25/1982WO1982004161A1 Device for preventing a computer program from being copied
11/25/1982WO1982004136A1 Numerical control system
11/25/1982EP0044866A4 Digital computer.
10/1982
10/13/1982EP0062438A2 Microcomputer having memory content protecting means
10/05/1982US4352952 Data security module
09/1982
09/07/1982US4348739 Terminal providing communication system information output
07/1982
07/20/1982CA1128159A1 Public key cryptographic apparatus and method
07/08/1982WO1982002261A1 Method for executing a program and system therefor
06/1982
06/01/1982CA1124811A1 Cryptographic file security for single domain networks
06/01/1982CA1124810A1 Cryptographic communication security for single domain networks
05/1982
05/12/1982EP0051259A2 Document information filing system
05/04/1982US4328542 Secure implementation of transition machine computer
04/1982
04/20/1982US4326098 High security system for electronic signature verification
04/15/1982WO1982001273A1 Method for processing an information signal and means for carrying out the method
04/14/1982EP0049322A1 Read-out protection for a single-chip microprocessor
04/13/1982US4325089 System for safeguarding magnetically recorded data
03/1982
03/30/1982CA1121014A1 Method and apparatus for transaction and identity verification
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