Matches 151 - 200 out of 393 < 1 2 3 4 5 6 7 8 >
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6996721 Flash device security method utilizing a check register  
A security method for preventing accidental or unauthorized writes to a flash memory. According to one embodiment of the present invention, a BIOS program stored in a flash memory array generates a...
6996692 Nonvolatile semiconductor memory device and method for providing security for the same  
An inventive nonvolatile semiconductor memory device is provided, in advance, with a column latch circuit 29 for performing a batch write operation (page latching operation, page programming...
6996744 Generating a passcode for resetting a game console  
A device includes a processor and a hard disk drive coupled to the processor. The hard disk drive stores various data associated with the device and includes a first partition and a second...
6993663 Input buffer overrun checking and prevention  
A method, apparatus, and article of manufacture for detecting and preventing input data buffer overrun storing a security token containing a randomly generated data pattern in memory between an...
6993589 Method and apparatus for providing secure access to a computer system resource  
Method and apparatus for managing access to one of a plurality of raw storage devices in a computer system including a host computer and a storage system. The computer system includes a plurality...
6990026 Data processing apparatus and memory card  
A CPU locks a memory card attached to a card mount with a password by a lock/unlock processing according to an access limit application program, and unlocks the lock based on a predetermined...
6981116 System and method for information control block tracking streams for universal disk format file systems  
A system and method for providing information control block (ICB) tracking streams for Universal Disk Format (UDF) file systems. The streams assist in tracking the location of the ICBs on the...
6968434 Method and apparatus for controlling access to storage device  
The storage regions under command of a storage controller can be simply enabled and disabled to access to by automatically registering connected host computers. Such system can be achieved by...
6968463 System for controlling access to resources in a storage area network  
A method for implementing security management in a storage area network by controlling access to network resources. Initially, a resource provider communicates with potential resource users, such...
6957315 TLB lock and unlock operation  
A digital system and method of operation is provided in which several processing resources ( 340 ) and processors ( 350 ) are connected to a shared translation lookaside buffer (TLB) ( 300, 310 ( n...
6952759 Memory access control system, apparatus, and method  
Articles, methods, apparatus, and systems to control access to a protected area of a memory are disclosed.
6952778 Protecting access to microcontroller memory blocks  
A microcontroller provides protection to memory blocks in an embedded memory. A set of rules such as security levels mapped to memory blocks are stored in a nonvolatile supervisory memory. An...
6950345 Nonvolatile semiconductor memory device  
A nonvolatile semiconductor memory device with a function of executing a verify operation for write data that is input from outside includes a memory cell array including memory cells arranged in a...
6944734 Storage apparatus and access control method  
A storage apparatus is capable of using a storage medium having at least a first region for storing therein data and a second region for storing therein both use permission discrimination...
6934852 Security keys for enhanced downstream access security for electronic file systems and drives  
A method and system for protecting electronic files from unauthorized access. The drive on which the file is stored is provided with a hardware identification code, which is unique to the drive. An...
6915398 Data reproduction system, data recorder and data reader preventing fraudulent usage by monitoring reproducible time limit  
A data reader includes: a memory card interface communicating with a memory card in which is recorded data such as video, the recorded date of that data, and a reproduction time limit of that data;...
6912634 Verifying the integrity of a media key block by storing validation data in a validation area of media  
A method for verifying the integrity of a media key block (MKB) by storing validation data in a validation area of a medium, such as a DVD-R or a DVD-RW. In one embodiment, validation data...
6910094 Secure memory management unit which uses multiple cryptographic algorithms  
An integrated circuit accesses first encrypted data stored in an external random access memory and accesses second encrypted data stored in an external read-only memory. The external random access...
6904493 Secure flash memory device and method of operation  
A secure flash memory device includes a connection port, a microcontroller, a flash memory, and a security program. The security program provides pass code security between a computer connected to...
6886087 Semiconductor memory device  
A semiconductor memory device reliably protects data written once into a non-volatile memory and exhibits high EEPROM data security functionality. The device has a user memory area to which a user...
6883077 Cache control device and method with TLB search before key receipt  
In an information processsing unit with key controlled protection, since it takes a long time to fetch a storage key from key storage, an instruction and computation unit of a CPU receives data...
6880054 Portable data storage device having a secure mode of operation  
A portable data storage device ( 10 ) includes a universal serial bus (USB) coupling device ( 1 ) and an interface device ( 2 ) is coupled to the USB coupling device ( 1 ). The portable data...
6877073 Fiber channel connection storage controller  
N_Port_Name information capable of distinctly identifying a host computer has seen set in a microprocessor 42 of a storage controller 40 prior to start-up of host computers 10, 20, 30 ; upon...
6868473 Non-volatile memory access control  
A system is described for controlling access to non-volatile memory. The system can include logic configured to determine whether to delay access to the non-volatile memory.
6862220 Semiconductor device  
A semiconductor device including a nonvolatile memory unit and a variable logic unit mounted on a chip is configured to achieve higher speed operation at a lower voltage. The semiconductor device...
6854032 System for accessing a region of memory using remote address translation and using a memory window table and a memory region table  
A system for permitting remote user access to regions of memory that have been exported for remote direct memory access purposes. The system supports dynamically changing access privileges to...
6848038 Portable data carrier and method for using the same in a plurality of applications  
Proposed is a portable data carrier for use in a plurality of applications having a memory device containing at least one data field ( 21, 31 ) which can be accessed in several modes by...
6834333 Data processing device, data storage device, data processing method, and program providing medium for storing content protected under high security management  
A data processing device includes a memory interface (I/F) unit and a control unit. When accessing a data storage device such as a memory card having a built-in flash memory, the data processing...
6832257 Computer, recorded medium on which address validity checking program is recorded, and address validity checking method  
When a request processing unit 2 a receives processing request including memory access, it executes processing in accordance with the request, and when memory access takes place, it outputs...
6826667 Buffer assisted data storage method and system with built-in fingerprint recognition function  
A buffer assisted data storage method and system has built-in fingerprint recognition function. Recognized data is provided with a high hit-rate in a short time with the assistanace of a buffer,...
6823433 Memory management system and method for providing physical address based memory access security  
A memory management unit (MMU) is disclosed for managing a memory storing data arranged within a plurality of memory pages. The MMU includes a security check unit (SCU) receiving a physical address...
6807602 System and method for mapping bus addresses to memory locations utilizing access keys and checksums  
A data storage system utilizes a plurality of memory systems, at least one processor, and a mapping system. Each of the memory systems has memory and a memory controller for storing and retrieving...
6804730 Access control device, access control method, recording medium, and computer data signal for controlling allowance of access to storage area using certification data  
A computer supplies an enable command and a password to a controller after a memory card is attached to the computer. The controller allows acceptance of an access command if the supplied enable...
6804752 Event data protection method for a flash programmable microprocessor-based control module  
A flash programmable microprocessor-based control module is operated in a manner to protect the integrity of event data stored in the programmable memory of the module while permitting authorized...
6789177 Protection of data during transfer  
A method to protect data of a drive from illegal accessing without increasing the load of processing on the drive side and to prevent not only illegal copying on the drive side but also an illegal...
6772229 Centrifugal communication and collaboration method  
A system for communicating information among participants in a distributed application having peripheral communications devices comprises a central agent having two-way links to the peripheral...
6768483 System and method of providing restrained, streamlined access to a computerized information source  
The present disclosure is directed to a system for providing restrained, streamlined access to a computerized information source. The system—which works in association with a multipurpose...
6754765 Flash memory controller with updateable microcode  
A flash memory controller with a volatile program and data memory is disclosed. The controller loads microcode and data into the program and data memory from a flash memory array upon powerup of...
6751716 Semiconductor storage device, control device, and electronic apparatus  
A semiconductor storage device including: a memory having a memory space, a plurality of addresses of the memory space each having data stored therein; and a security circuit for controlling a...
6745307 Method and system for privilege-level-access to memory within a computer  
Method and system for controlling areas of memory within a computer system to routines executing at a specific privilege levels in a modern computer architecture featuring protection keys,...
6745281 Fiber channel connection magnetic disk device and fiber channel connection magnetic disk controller  
Fiber channel connection magnetic disk device and controller which have a plurality of fiber-channel specification supporting port controllers, comprising: a port controller for managing the...
6738877 Access control method, storage apparatus and storage medium  
A storage apparatus which writes information on a portable storage medium in response to a request from at least one host unit is provided with a writing part for writing on the detachable storage...
6738879 Advanced technology attachment compatible disc drive write protection scheme  
A disc drive storage system and device for use with a host computer is provided in which information contained on the disc drive can be write protected with an ATA compatible write protection...
6738876 Apparatus and method for preserving a region code for an optical disk drive  
An apparatus and method for preserving a region code for an optical disk drive in an internal flash memory contained in a microcomputer. This region code preserving method receives a region code to...
6738913 Storage device and access control method  
A storage device is provided for gaining access to a storage medium and for reading data from or writing data to the storage medium. The storage medium has a plurality of access control areas for...
6735665 Data processing device for specifying data storage information on a portable recording medium  
A data processing device connected to a network and an external memory device stores data in a memory area of the external memory device. Image data and the like are transferred and stored in the...
6731536 Password and dynamic protection of flash memory data  
In protecting Flash memory data, a flexible system and method provides for different levels of protection. It offers the ability to dynamically lock a sector of memory using a dynamic protection...
6715049 Microcomputer and information processing system  
A microcomputer and an information processing system protect data stored therein and secure the safety of the data. The microcomputer ( 1 ) has a memory ( 3 ), a read protect register ( 13 ), and a...
6715050 Storage access keys  
Methods are provided for communicating with and regulating access to a storage system contained within a file system. Storage access keys are used to communicate to the file system changes in...
6711690 Secure write blocking circuit and method for preventing unauthorized write access to nonvolatile memory  
A secure write blocking circuit and method of operation thereof. The secure write blocking circuit includes enable and disable block input terminals coupled to a blocking circuit. The blocking...
Matches 151 - 200 out of 393 < 1 2 3 4 5 6 7 8 >