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| Number | Title | Issue Date |
| 5454096 | Storage management system for memory card using memory allocation table A storage management system for a memory card, which has a storage area divided into a plurality of storage units having a predetermined storage capacity. manages the storage of information in every storage unit. The storage area includes a memory allocat... | 09/26/1995 |
| 5438674 | Optical disk system emulating magnetic tape units An optical disk system emulating a 3480 magnetic tape subsystem having one or more magnetic tape drives, includes a VMEGate channel attached processor for receiving CCW tape commands, a SCSI board for controlling SCSI optical disk drives, a serial I/O boa... | 08/01/1995 |
| 5437020 | Method and circuitry for detecting lost sectors of data in a solid state memory disk A method of detecting the loss of a sector of data stored in a solid state memory disk is described. Detection is enabled by the creation of a header for each sector number during formatting. Each header includes a logical sector number equal to a sector ... | 07/25/1995 |
| 5408671 | System for controlling shared registers By using a shared register directory having a bit array corresponding one to one to the processor for each shared register, a shared register control portion of a shared register control system in a multiprocessor system monitors to which processor each o... | 04/18/1995 |
| 5388239 | Operand address modification system A system of adding an operand address included in an instruction word to the contents of a modification register to obtain an effective address, wherein address data which designates each of a plurality of data tables constituted with prescribed storage c... | 02/07/1995 |
| 5379392 | Method of and apparatus for rapidly loading addressing registers An apparatus for and method of loading the user addressing base register of a large scale multiprogrammed instruction processor. The base register is normally loaded to permit a user application program to access a different data segment. Providing a base... | 01/03/1995 |
| 5367650 | Method and apparauts for parallel exchange operation in a pipelined processor A data register file system is provided in a microprocessor having a pipelined execution unit that employs the data register file to store operands and results of its instruction executions. The data register file system includes a plurality of data regis... | 11/22/1994 |
| 5339403 | Access control in a distributed computer system A distributed computer system, has a number of users and target applications. When a user logs on to the system, an authentication unit issues the user with a privilege attribute certificate (PAC) representing the user's access rights. When the user wishe... | 08/16/1994 |
| 5333288 | Effective address pre-calculation type pipelined microprocessor An effective address pre-calculation type pipelined microprocessor comprises a register file which can be used for a base address for an operand address and an effective address calculation unit for calculating and generating an effective address of an op... | 07/26/1994 |
| 5295251 | Method of accessing multiple virtual address spaces and computer system A computer system operable as a virtual machine system capable of accessing multiple virtual address spaces, which has an access register translation means for translating a space identifier into an origin address of a table for address translation and a ... | 03/15/1994 |
| 5276841 | Audio/video data reproducing apparatus which generates end of data transfer signal and which transfers data after communication error without resetting address data An audio/video data reproducing apparatus reads out data from a first storage, which has its storage area equally divided into clusters and stores audio/video data on a cluster-by-cluster basis, to transfer the data read out to utility equipment over a co... | 01/04/1994 |
| 5101487 | Method for retrieving compressed data from a memory storing a look-up table A method for storing a k-bit output value for each of a plurality of m-bit input values in a memory having an n-bit word stored at each of 2n n-bit addresses, wherein m, n and k are positive integers, m>n>k and m-nࣙk, the method comprising th... | 03/31/1992 |
| 5032987 | System with a plurality of hash tables each using different adaptive hashing functions A data processing system and method particularly useful for network address lookup in interconnected local area networks uses a family of hashing algorithms that allow implementation of a dictionary that is particularly advantageous when the underlying ha... | 07/16/1991 |
| 5016169 | Data processor capable of correctly re-executing instructions A data processor includes a bus interface coupled to an external bus for transferring information to and from the external bus, an instruction decoding section coupled to the bus interface to receive an instruction through the bus interface from the exter... | 05/14/1991 |
| 4864493 | Instruction address producing unit capable of accessing an instruction segment of an extended size In an instruction address producing unit for producing an instruction address in response to an entry descriptor in cooperation with a segment descriptor segment (48), the entry descriptor has first and second segment fields (41 and 42) corresponding to f... | 09/05/1989 |
| 4817032 | User programmable data processor In an analysis processor which utilizes a parameter table for setting a processing condition and analyzes data in accordance with the content of table, a process for registering/correcting the parameter table is standarized for various analysis processing... | 03/28/1989 |
| 4803619 | Digital data processing system incorporating apparatus for resolving names Apparatus in a digital computer system capable of performing a call operation and a return operation for obtaining addresses of data from names representing the data. Each name is permanently associated with a procedure containing instructions to which th... | 02/07/1989 |
| 4731734 | Digital computer system incorporating object-based addressing and access control and tables defining derivation of addresses of data from operands in instructions A digital computer system having a memory system organized into objects for storing data and a processor for processing data in response to instructions. An object identifier and an access control list are associated with each object. The memory system re... | 03/15/1988 |
| 4685057 | Memory mapping system The disclosure relates to a memory mapping system wherein information is stored on a page by page basis in memory in discontiguous locations therein with the address of the next page in which storage is to take place always being available in the controll... | 08/04/1987 |
| 4661903 | Digital data processing system incorporating apparatus for resolving names Apparatus in a digital computer system for obtaining descriptors of data from names representing the data. The digital computer system executes sequences of instructions. Names representing data processed during execution of an instruction sequence are as... | 04/28/1987 |
| 4635189 | Real-time distributed data-base management system A real-time distributed data-base system that stores in the local memory of each processor copies of only those variables necessary for execution of the programs in that processor. Performance is enhanced by using the absolute address of variables in each... | 01/06/1987 |
| 4456953 | Apparatus for and method of addressing data elements in a table having several entries A data byte element E located at position d in entry i of memory section Ma having reference entry TR is addressed. Memory section Ma is one section of a table in a data processory memory, such that each of the entries in section M | 06/26/1984 |
| 4453212 | Extended address generating apparatus and method Address generating apparatus which uses narrow data paths for generating a wide logical address and which also provides for programs to access very large shared data structures outside their normally available addressing range and over an extended range o... | 06/05/1984 |
| 4428045 | Apparatus for specifying and resolving addresses of operands in a digital data processing system Improved apparatus for specifying and resolving addresses of operands in a digital data processing system. Instructions executed by the system are contained in procedures. Addresses are calculated using a set of architectural base addresses. Operands are ... | 01/24/1984 |
| 4394733 | Cache/disk subsystem One or more storage control units (SCUs) interface one or more channels with a plurality of disk drives. One or more host processors are connected to the channels. Associated with the SCUs are one or more cache storage units (CSUs) having a relatively sho... | 07/19/1983 |
| 4361868 | Device for increasing the length of a logic computer address A data processing machine having a device for extending the length of the logic address to (M+N) bits, so that 2M+N different logic addresses can be formed and become available to the programmer. The original data structure of a computer having... | 11/30/1982 |
| 4325120 | Data processing system A data processor architecture wherein the processors recognize two basic types of objects, an object being a representation of related information maintained in a contiguously-addresed set of memory locations. The first type of object contains ordinary da... | 04/13/1982 |
| 4229789 | System for transferring data between high speed and low speed memories A data transfer or replacement system for shifting blocks of data or pages between a high speed, low capacity, working memory and a low speed, high capacity backup store of a data processing system. Each block in the working memory is associated with an "... | 10/21/1980 |
| 4056809 | Fast table lookup apparatus for reading memory Fast Table Lookup Apparatus For Reading Memory is disclosed for use in conjunction with a logic bus, a memory device, a microprocessor of the type which provides an output logic signal to the bus comprising the contents of an internal register and which i... | 11/01/1977 |
