Patents Assigned to Annex Systems Incorporated
  • Patent number: 7765180
    Abstract: A reorganization system permitting reorganization in an operating implementation of the data storage and retrieval system invention disclosed in Japanese Patent Hei11-310096 Japanese Patent 3345628. The invention permits the reorganization of primary keys and blocks storing records by means of the provision of current location tables LC and new location tables LN and writing location table entries from LC to LN for one or multiple blocks in a given reorganization pass. Alternate-key indices may also be reorganized in the same fashion. Reorganization is performed continuously. The use of reorganization pointers to indicate during reorganization how far reorganization has advanced permits reorganization of a database without suspending the database while executing data retrieval, addition, updating and deletion by means of primary keys and alternate keys.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: July 27, 2010
    Assignee: Annex Systems Incorporated
    Inventor: Masaharu Tamatsu
  • Publication number: 20070076744
    Abstract: Problem: Communications networks comprising a multitude of nodes suffer frequent transmission collisions, the performance of their transmission paths goes unavailed, and delays occur in transmission. The invention provides a communications system capable of high-speed transmissions without collisions. Solution: A rhythm node is provided on the communications network, and upstream transmissions are performed subsequent to receipt by individual dominant nodes of a transmission instigation message multicast by the rhythm node and after a predetermined standby time. For downstream transmissions, the rhythm node allocates downstream transmission permission to a tonic node.
    Type: Application
    Filed: September 27, 2006
    Publication date: April 5, 2007
    Applicant: ANNEX SYSTEMS INCORPORATED
    Inventor: Masaharu Tamatsu
  • Publication number: 20060143238
    Abstract: A reorganization system permitting reorganization in an operating implementation of the data storage and retrieval system invention disclosed in Japanese Patent Hei11-310096 Japanese Patent 3345628. The invention permits the reorganization of primary keys and blocks storing records by means of the provision of current location tables LC and new location tables LN and writing location table entries from LC to LN for one or multiple blocks in a given reorganization pass. Alternate-key indices may also be reorganized in the same fashion. Reorganization is performed continuously. The use of reorganization pointers to indicate during reorganization how far reorganization has advanced permits reorganization of a database without suspending the database while executing data retrieval, addition, updating and deletion by means of primary keys and alternate keys.
    Type: Application
    Filed: September 10, 2003
    Publication date: June 29, 2006
    Applicant: ANNEX SYSTEMS INCORPORATED
    Inventor: Masaharu Tamatsu
  • Publication number: 20060129565
    Abstract: While scalability in database processing may be achieved gradually and at low cost, to achieve high scalability of several thousand times. This database accelerator holds on an accelerator system copies of location tables, which correspond to primary-key indices, and alternate-key location tables, which correspond to alternate-key indices, for a primary system that performs data updates. When a location table or alternate-key location table on the primary system is modified, updates are synchronized to the location table and alternate-key location tables on the accelerator system. The data itself is held only on the primary system. Major improvements in processing capabilities are achieved over serial processing by distributing processing requests among accelerator systems.
    Type: Application
    Filed: October 21, 2003
    Publication date: June 15, 2006
    Applicant: Annex Systems Incorporated
    Inventor: Masaharu Tamatsu
  • Patent number: 6934877
    Abstract: This data backup and recovery system enables backup and recovery of data at low cost and in short periods of time. The system is comprised of a primary system that updates the source data and one or more secondary systems that back up the source data. The secondary systems may be installed in the vicinity of the primary system or at a remote location. The secondary systems have the same logical configuration as the primary system and perform backups by acquiring the most recent data in real time. The update histories maintained by the secondary systems may be used to restore the primary system to any given state at an earlier point in time. Using a secondary system as a referential tool enables load distribution; the backup processing of the secondary system may then be suspended to perform referential batch processing while it is detached from on-line processing.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: August 23, 2005
    Assignee: Annex Systems Incorporated
    Inventor: Masaharu Tamatsu
  • Patent number: 6654868
    Abstract: Conventional information storage systems are subject to numerous practical constraints such as contiguity in the physical locations of blocks and the requirement that storage blocks be created in advance. Information retrieval in these systems has required the creation of indices, which take a long time to generate, and the structure of these systems makes them prone to deadlock because the indices are updated and the range of exclusion broadened when the referent information is modified. This invention utilizes the random access facilities of semiconductors to achieve high speeds and minimize the maintenance load. This invention introduces location tables and alternate-key tables to replace these indices. It also stores multiple records in a single block and can handle variable-length records and spanned records. The location tables manage the storage blocks.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: November 25, 2003
    Assignee: Annex Systems Incorporated
    Inventor: Masaharu Tamatsu
  • Publication number: 20030159015
    Abstract: Conventional information storage systems are subject to numerous practical constraints such as contiguity in the physical locations of blocks and the requirement that storage blocks be created in advance. Information retrieval in these systems has required the creation of indices, which take a long time to generate, and the structure of these systems makes them prone to deadlock because the indices are updated and the range of exclusion broadened when the referent information is modified. This invention utilizes the random access facilities of semiconductors to achieve high speeds and minimize the maintenance load. This invention introduces location tables and alternate-key tables to replace these indices. It also stores multiple records in a single block and can handle variable-length records and spanned records. The location tables manage the storage blocks.
    Type: Application
    Filed: March 17, 2003
    Publication date: August 21, 2003
    Applicant: Annex Systems Incorporated
    Inventor: Masaharu Tamatsu
  • Patent number: 6584555
    Abstract: Conventional information storage systems are subject to numerous practical constraints such as contiguity in the physical locations of blocks and the requirement that storage blocks be created in advance. Information retrieval in these systems has required the creation of indices, which take a long time to generate, and the structure of these systems makes them prone to deadlock since the indices are updated and the range of exclusion broadened when the referent information is modified. This invention utilizes the random access facilities of semiconductors to achieve high speeds and minimize the maintenance load. This invention introduces location tables and alternate-key tables to replace these indices. It also stores multiple records in a single block and can handle variable-length records and spanned records. The location tables manage the storage blocks.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: June 24, 2003
    Assignee: Annex Systems Incorporated
    Inventor: Masaharu Tamatsu
  • Publication number: 20020133686
    Abstract: Conventional information storage systems are subject to numerous practical constraints such as contiguity in the physical locations of blocks and the requirement that storage blocks be created in advance. Information retrieval in these systems has required the creation of indices, which take a long time to generate, and the structure of these systems makes them prone to deadlock since the indices are updated and the range of exclusion broadened when the referent information is modified. This invention utilizes the random access facilities of semiconductors to achieve high speeds and minimize the maintenance load. This invention introduces location tables and alternate-key tables to replace these indices. It also stores multiple records in a single block and can handle variable-length records and spanned records. The location tables manage the storage blocks.
    Type: Application
    Filed: April 10, 2002
    Publication date: September 19, 2002
    Applicant: Annex Systems Incorporated
    Inventor: Masaharu Tamatsu
  • Publication number: 20010011321
    Abstract: Conventional information storage systems are subject to numerous practical constraints such as contiguity in the physical locations of blocks and the requirement that storage blocks be created in advance. Information retrieval in these systems has required the creation of indices, which take a long time to generate, and the structure of these systems makes them prone to deadlock since the indices are updated and the range of exclusion broadened when the referent information is modified. This invention utilizes the random access facilities of semiconductors to achieve high speeds and minimize the maintenance load. This invention introduces location tables and alternate-key tables to replace these indices. It also stores multiple records in a single block and can handle variable-length records and spanned records. The location tables manage the storage blocks.
    Type: Application
    Filed: May 7, 1999
    Publication date: August 2, 2001
    Applicant: ANNEX SYSTEMS INCORPORATED
    Inventor: MASAHARU TAMATSU