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Class Information
Number: 711/164
Name: Electrical computers and digital processing systems: memory > Storage accessing and control > Control technique > Access limiting > With password or key
Description: Subject matter wherein authorization code information
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5497479 |
Method and apparatus for remotely controlling and monitoring the use of computer software |
Mar. 5, 1996 |
| 5481706 |
System and method for creating thread-safe shared libraries |
Jan. 2, 1996 |
| 5469564 |
Data storage device with enhanced data security |
Nov. 21, 1995 |
| 5434999 |
Safeguarded remote loading of service programs by authorizing loading in protected memory zones in a terminal |
Jul. 18, 1995 |
| 5377264 |
Memory access protection circuit with encryption key |
Dec. 27, 1994 |
| 5377343 |
Security circuit for protecting data stored in an internal memory of a microcomputer |
Dec. 27, 1994 |
| 5375243 |
Hard disk password security system |
Dec. 20, 1994 |
| 5347579 |
Personal computer diary |
Sep. 13, 1994 |
| 5335334 |
Data processing apparatus having a real memory region with a corresponding fixed memory protection key value and method for allocating memories therefor |
Aug. 2, 1994 |
| 5319765 |
Semiconductor memory unit utilizing a security code generator for selectively inhibiting memory access |
Jun. 7, 1994 |
| 5305448 |
Shared access serialization featuring second process lock steal and subsequent write access denial to first process |
Apr. 19, 1994 |
| 5297268 |
ID protected memory with a readable/writable ID template |
Mar. 22, 1994 |
| 5293601 |
Floppy disk control unit and apparatus having a floppy disk control unit |
Mar. 8, 1994 |
| 5293610 |
Memory system having two-level security system for enhanced protection against unauthorized access |
Mar. 8, 1994 |
| 5287519 |
LAN station personal computer system with controlled data access for normal and unauthorized users and method |
Feb. 15, 1994 |
| 5282247 |
Apparatus and method for providing data security in a computer system having removable memory |
Jan. 25, 1994 |
| 5265227 |
Parallel protection checking in an address translation look-aside buffer |
Nov. 23, 1993 |
| 5263147 |
System for providing high security for personal computers and workstations |
Nov. 16, 1993 |
| 5226137 |
Electronic key with multiple password protected sub-keys using address and translation to implement a block data move between public and protected sub-keys |
Jul. 6, 1993 |
| 5204966 |
System for controlling access to a secure system by verifying acceptability of proposed password by using hashing and group of unacceptable passwords |
Apr. 20, 1993 |
| 5193168 |
Multiprocessing system with enhanced shared storage |
Mar. 9, 1993 |
| 5163096 |
Storage protection utilizing public storage key control |
Nov. 10, 1992 |
| 5163147 |
Computer system with file security function |
Nov. 10, 1992 |
| 5163141 |
RAM lock device and method for a text entry system |
Nov. 10, 1992 |
| 5148534 |
Hardware cartridge representing verifiable, use-once authorization |
Sep. 15, 1992 |
| 5146575 |
Implementing privilege on microprocessor systems for use in software asset protection |
Sep. 8, 1992 |
| 5140685 |
Record lock processing for multiprocessing data system with majority voting |
Aug. 18, 1992 |
| 5134700 |
Microcomputer with internal ram security during external program mode |
Jul. 28, 1992 |
| 5134561 |
Computer system with logic for writing instruction identifying data into array control lists for precise post-branch recoveries |
Jul. 28, 1992 |
| 5117491 |
Ring reduction logic using parallel determination of ring numbers in a plurality of functional units and forced ring numbers by instruction decoding |
May. 26, 1992 |
| 5079737 |
Memory management unit for the MIL-STD 1750 bus |
Jan. 7, 1992 |
| 5058162 |
Method of distributing computer data files |
Oct. 15, 1991 |
| 5018096 |
Security administrator for automatically updating security levels associated with operator personal identification data |
May. 21, 1991 |
| 4999770 |
Command controlled multi-storage space protection key pretesting system permitting access regardless of test result if selected key is predetermined value |
Mar. 12, 1991 |
| 4974208 |
Microcomputer incorporating a nonvolatile semiconductor memory |
Nov. 27, 1990 |
| 4972338 |
Memory management for microprocessor system |
Nov. 20, 1990 |
| 4965828 |
Non-volatile semiconductor memory with SCRAM hold cycle prior to SCRAM-to-E.sup.2 PROM backup transfer |
Oct. 23, 1990 |
| 4954982 |
Method and circuit for checking storage protection by pre-checking an access request key |
Sep. 4, 1990 |
| 4949238 |
Apparatus for detecting memory protection violation |
Aug. 14, 1990 |
| 4890223 |
Paged memory management unit which evaluates access permissions when creating translator |
Dec. 26, 1989 |
| 4868736 |
Code operated access control system for electronic data store |
Sep. 19, 1989 |
| 4835682 |
Computer system for preventing copying of program from a storage medium by modifying the program using a unique key |
May. 30, 1989 |
| 4819204 |
Method for controlling memory access on a chip card and apparatus for carrying out the method |
Apr. 4, 1989 |
| 4814982 |
Reconfigurable, multiprocessor system with protected, multiple, memories |
Mar. 21, 1989 |
| 4748561 |
Method of protecting computer software |
May. 31, 1988 |
| 4734855 |
Apparatus and method for fast and stable data storage |
Mar. 29, 1988 |
| 4718038 |
Data security device for storing data at a peripheral part of the device during power down thus preventing improper retrieval |
Jan. 5, 1988 |
| 4713753 |
Secure data processing system architecture with format control |
Dec. 15, 1987 |
| 4701840 |
Secure data processing system architecture |
Oct. 20, 1987 |
| 4685056 |
Computer security device |
Aug. 4, 1987 |
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