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| Number | Title | Issue Date |
| 5212786 | File compaction process for electronic printing systems A method is provided in which a volume allocation table (VAT) is constructed in a system memory on the basis of those files stored on a plurality of disks. In constructing the VAT of the system memory, contiguous (i.e., single run) files are first allocat... | 05/18/1993 |
| 5212787 | Method and apparatus for accessing a relational database without exiting an object-oriented environment The method and apparatus of the present invention permit accessing a relational database outside of an object-oriented environment without exiting the object-oriented environment. A requestor object located in the object-oriented environment sends a data ... | 05/18/1993 |
| 5201046 | Relational database management system and method for storing, retrieving and modifying directed graph data structures An improved database management system (DBMS) stores, retrieves and manipulates directed graph data structures in a relational database. Each directed graph data structure contains one or more records of data which are interconnected by pointers. Data is ... | 04/06/1993 |
| 5193185 | Method and means for lineage tracing of a spatial information processing and database system A lineage information processor enables a user to obtain information concerning the various data layers in a spatial data base which contributed to any particular data layer of interest. The component software parses input commands and determines if those... | 03/09/1993 |
| 5193192 | Vectorized LR parsing of computer programs A parser for parsing computer programs in a compiler has parsing tables arranged as linear vectors. In a reduction portion of the parser, a production table and a lookahead set table have paired entries at identical address offsets such that a one-to-one ... | 03/09/1993 |
| 5140692 | Document retrieval system using analog signal comparisons for retrieval conditions including relevant keywords A document retrieval system retrieves a registered document from a document database responsive to a designated retrieval condition including one or a plurality of designated keywords. The document retrieval system includes a storage for storing keyword r... | 08/18/1992 |
| 5058000 | System for accessing remote heterogeneous database including formatting retrieved data into applications program format An improved method for access to data from a remote computer and an improved method for accessing remote heterogeneous data bases. The method includes a personal computer having an application program for processing data by keyboard input that operates on... | 10/15/1991 |
| 5021992 | Method of translating data from knowledge base to data base A method for translating knowledge contained within a knowledge system into data records for a data base management system. The method collects the factual knowledge and other correlated auxiliary knowledge within the knowledge base, analyzes the frequenc... | 06/04/1991 |
| 5021995 | Data exchange apparatus and methods Apparatus and methods for the exchange of data between files having different types. The apparatus includes means for reading a logical record from a source file and using the data contained therein in the production of a generic form in which data is rep... | 06/04/1991 |
| 4999766 | Managing host to workstation file transfer A technique is described for maintaining consistent filename conventions between multiple hosts and workstations by providing a table of default parameters for various hosts and workstations and the corresponding filetypes that are accessed to determine t... | 03/12/1991 |
| 4970682 | Digital map generator and display system A digital information storage and read-out system in which digital elevation and cultural terrain data is read from a magnetic tape in compressed form into an intermediate memory which operates as a speed buffer memory. The data in the intermediate memory... | 11/13/1990 |
| 4956809 | Method for canonical ordering of binary data for portable operating systems A method for making files compatible between different computers having different binary structures while using the same operating system by keeping all files in a standardized canonical order when they move to or from external data storage or communicati... | 09/11/1990 |
| 4931984 | File data retrieving system using retrieval-use-image data A file data retrieving system includes a filing device for storing file data and retrieval-use-image data used for retrieving file data. The file data is stored in a predetermined data form. The retrieval-use-image data has an image density smaller than t... | 06/05/1990 |
| 4930072 | Method for computing transitive closure A method and apparatus for creating a transitive closure of a database when the database is stored on a secondary storage in the form of links connecting nodes. The method consists of partitioning the database, transferring one partition at a time from th... | 05/29/1990 |
| 4914586 | Garbage collector for hypermedia systems A database of interests is maintained in a distributed computing system to register the individual interests of users in centrally stored non-textual media files, such as digital voice, music, scanned-in image, and video files. Uniquely named piece table ... | 04/03/1990 |
| 4908759 | Hierarchical database conversion with conditional write A process for transitioning a hierarchical input database to create a hierarchical output database. The processing occurs generally in two stages. During the first stage, information contained in user-specified driver tables is utilized to extract only pe... | 03/13/1990 |
| 4888681 | Space management system for data files having shared access A Space Management System for a Data Access System of a File Access Processor for servicing requests from a set of Application Support Processors, which can exist in a global network, with each Application Support Processor sharing access to data in files... | 12/19/1989 |
| 4858106 | Automated method implemented on a distributed data processing system for partitioning a data string into two substrings A method for partitioning an original string of data elements into two substrings on a distributed processing system is disclosed. The elements are each of a first or a second type and the original string consists of a plurality of string fragments each c... | 08/15/1989 |
| 4831582 | Database access machine for factory automation network A cell controlling computer is interfaced to a group of station-level computers through an access machine which stores a database of data that is continually being updated from the station-level computers in response to conditions on machines and industri... | 05/16/1989 |
| 4825354 | Method of file access in a distributed processing computer network A method of performing remote process execution in a computer network. A remote process execution request, including an identification of a process to be executed, is transmitted from a requesting computer to a serving computer. At both the requesting and... | 04/25/1989 |
| 4817050 | Database system A database system is provided in a network system capable of exchanging medical data, including at least image data and key data associated therewith, and can store and retrieve the medical data via the network system. The database system has first and se... | 03/28/1989 |
| 4794528 | Pattern matching method for tree structured data In order to highly speed up the pattern matching of tree structured data in a logic programming language, the priority order is set when the data owned by the individual nodes of a tree structure are to be transversely sought, and the tree structured data... | 12/27/1988 |
| 4774655 | System for retrieving information from a plurality of remote databases having at least two different languages A system enables a user to retrieve information from a plurality of commercially available databases. The user gains access to the system with a personal computer equipped with a modem, or with any other terminal capable of sending and receiving data over... | 09/27/1988 |
| 4719571 | Algorithm for constructing tree structured classifiers In assigning features to nodes of a tree structured classifier and determining terminal nodes in response to a training set of objects each being determined by a plurality of features, a selected characteristic, such as a cost function based on the minimu... | 01/12/1988 |
| 4680705 | Automatic data restructurer A method for generating object code which represents a conformance of input data structures into that of a prespecified output data structure such that at runtime data in the input structures can be embedded into the output structure. At least some of the... | 07/14/1987 |
| 4571700 | Page indexing system for accessing sequentially stored data representing a multi-page document A document indexing method and apparatus facilitates access to sequentially stored documents in a word processing system. The invention uses random access memory in the word processor to build a page index when the sequential data stream is first processe... | 02/18/1986 |
| 4555771 | Data processing system for data base management of matrix type data A data base management system of a data processing system handles a hierarchical structure model. Matrix type data, considered as having different hierarchical structure in accordance with the application, is effectively handled by storing in the form of ... | 11/26/1985 |
| 4553206 | Image storage and retrieval An improved technique is presented for organizing digitized information for storage in a relational type tree memory structure where the digitized information is broken up into blocks of a fixed byte size which are then stored throughout the memory. A hea... | 11/12/1985 |
| 4507752 | In-place index compression The present invention provides in a data processing system storing a plurality of discrete entities, each identified by a single parameter within a monotonic parameter spectrum, resident at an addressable location and locatable by searching a system maint... | 03/26/1985 |
| 4468732 | Automated logical file design system with reduced data base redundancy An associative file design method and apparatus are used for automatically generating an integrated data base design structure, with minimal data redundancy, for use in multi-application general purpose digital computing systems. The integrated data base ... | 08/28/1984 |
| 4205371 | Data base conversion system A data processing system includes means for enabling programs originated for a system structured for operating in a first data base environment to be executed by the system which is structured to operate in a second data base environment through the inclu... | 05/27/1980 |
| 4068299 | Data processing system incorporating a logical compare instruction An apparatus for utilizing a logical compare instruction is disclosed. The apparatus develops a data field descriptor associated with and describing the attributes of each of the operands of the compare instruction. If the operands have different formats,... | 01/10/1978 |
