Patents by Inventor Shigeko Mori
Shigeko Mori has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9164665Abstract: A hardware device outputs management information relating to an event that occurs in a managed object. A management information processing unit generates charts for displaying the management information relating to the event. A management screen editing unit generates a management screen for managing a state of the managed object using the charts generated by the management information processing unit. The management screen editing unit further sets a significance of each of the charts generated; generates a first management screen for selecting one of a plurality of chart groups relating to the event that occurs in the managed object; generates a second management screen for displaying a chart group selected in the first management screen; and provides a special display for a particular chart group that includes a chart whose significance is higher than a predetermined threshold, in order to distinguish the particular chart group from other chart groups.Type: GrantFiled: October 22, 2013Date of Patent: October 20, 2015Assignee: International Business Machines CorporationInventors: Takumi Kobayashi, Shigeko Mori, Tatsuyuki Shiomi
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Patent number: 8812513Abstract: A method of checking consistency of pointers in a hierarchical database includes reading segment information recorded on the hierarchical database and determining a type of each segment and pointer included in each segment. The method also includes extracting parent pointers and twin pointers from child segments and extracting a child pointer from the parent segment. The method also includes calculating a first hash value by a combination of a storage location address of the parent segment and a value of the child pointer and a combination of the values of the parent pointers and the twin pointers included in the child segments, and a second hash value from a combination of storage location addresses of the child segments and the values of the parent pointers included in the child segments. The method further includes indicating a consistency error when the first hash value and the second hash value differ.Type: GrantFiled: November 16, 2010Date of Patent: August 19, 2014Assignee: International Business Machines CorporationInventor: Shigeko Mori
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Publication number: 20140181727Abstract: A hardware device outputs management information relating to an event that occurs in a managed object. A management information processing unit generates charts for displaying the management information relating to the event. A management screen editing unit generates a management screen for managing a state of the managed object using the charts generated by the management information processing unit. The management screen editing unit further sets a significance of each of the charts generated; generates a first management screen for selecting one of a plurality of chart groups relating to the event that occurs in the managed object; generates a second management screen for displaying a chart group selected in the first management screen; and provides a special display for a particular chart group that includes a chart whose significance is higher than a predetermined threshold, in order to distinguish the particular chart group from other chart groups.Type: ApplicationFiled: October 22, 2013Publication date: June 26, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Takumi Kobayashi, Shigeko MORI, Tatsuyuki SHIOMI
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Publication number: 20130086005Abstract: A method of checking consistency of pointers in a hierarchical database includes reading segment information recorded on the hierarchical database and determining a type of each segment and pointer included in each segment. The method also includes extracting parent pointers and twin pointers from child segments and extracting a child pointer from the parent segment. The method also includes calculating a first hash value b a combination of a storage location address of the parent segment and a value of the child pointer and a combination of the values of the parent pointers and the twin pointers included in the child segments, and a second hash value from a combination of storage location addresses of the child segments and the values of the parent pointers included in the child segments. The method further includes indicating a consistency error when the first hash value and the second hash value differ.Type: ApplicationFiled: November 16, 2010Publication date: April 4, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventor: Shigeko Mori
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Patent number: 8326808Abstract: A method of verifying the consistency in a hierarchical database includes: generating a pointer record by acquiring a reference point stored in the hierarchical database and associating a first reference point identification value determined from a storage location of the reference point with pointer information retained at the reference point; generating a segment record by acquiring a segment stored in the hierarchical database and associating verification data with a retention address of the acquired segment, the verification data giving a second reference point identification value in connection with the calculation module, the calculation module calculating, for a segment in the hierarchical database, a reference point identification value used to identify a reference point which points to the segment; and verifying the consistency of a chain formed in the hierarchical database from the reference point to the segment by comparing the segment record with the pointer record.Type: GrantFiled: March 19, 2010Date of Patent: December 4, 2012Assignee: International Business Machines CorporationInventors: Shigeko Mori, Toshikazu Takahashi
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Patent number: 8108365Abstract: A database management system for determining consistency in a hierarchical database sequentially reads pointers of a plurality of segment data, generates an address hash value, which is a hash value of retention addresses of the segment data having been read, generates a pointer hash value, which is a hash value of the pointers included in the segment data having been read, corrects the address hash value, when the contents of the address already read is updated, based a retention address of segment data added or deleted by the update, corrects the pointer hash value based on each pointer changed by the update, and determines that the hierarchical database is consistent if the corrected address hash value coincides with the corrected pointer hash value.Type: GrantFiled: October 9, 2008Date of Patent: January 31, 2012Assignee: International Business Machines CorporationInventors: Shigeko Mori, Toshikazu Takahashi, Ichirob Teshima
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Publication number: 20100274771Abstract: A method of verifying the consistency in a hierarchical database includes: generating a pointer record by acquiring a reference point stored in the hierarchical database and associating a first reference point identification value determined from a storage location of the reference point with pointer information retained at the reference point; generating a segment record by acquiring a segment stored in the hierarchical database and associating verification data with a retention address of the acquired segment, the verification data giving a second reference point identification value in connection with the calculation module, the calculation module calculating, for a segment in the hierarchical database, a reference point identification value used to identify a reference point which points to the segment; and verifying the consistency of a chain formed in the hierarchical database from the reference point to the segment by comparing the segment record with the pointer record.Type: ApplicationFiled: March 19, 2010Publication date: October 28, 2010Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Shigeko Mori, Toshikazu Takahashi
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Publication number: 20090049079Abstract: A database management system for determining consistency in a hierarchical database sequentially reads pointers of a plurality of segment data, generates an address hash value, which is a hash value of retention addresses of the segment data having been read, generates a pointer hash value, which is a hash value of the pointers included in the segment data having been read, corrects the address hash value, when the contents of the address already read is updated, based a retention address of segment data added or deleted by the update, corrects the pointer hash value based on each pointer changed by the update, and determines that the hierarchical database is consistent if the corrected address hash value coincides with the corrected pointer hash value.Type: ApplicationFiled: October 9, 2008Publication date: February 19, 2009Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Shigeko Mori, Toshikazu Takahashi, Ichirob Teshima
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Patent number: 7483920Abstract: A database management system for determining consistency in a hierarchical database sequentially reads pointers of a plurality of segment data, generates an address hash value, which is a hash value of retention addresses of the segment data having been read, generates a pointer hash value, which is a hash value of the pointers included in the segment data having been read, corrects the address hash value, when the contents of the address already read is updated, based a retention address of segment data added or deleted by the update, corrects the pointer hash value based on each pointer changed by the update, and determines that the hierarchical database is consistent if the corrected address hash value coincides with the corrected pointer hash value.Type: GrantFiled: November 8, 2005Date of Patent: January 27, 2009Assignee: International Business Machines CorporationInventors: Shigeko Mori, Toshikazu Takahashi, Ichiroh Teshima
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Patent number: 7444496Abstract: An apparatus, system, and method are disclosed for determining the consistency of a database including indirect reference to data elements. There is provided an apparatus for determining consistency of a database. This database includes, in association with each data element, an indirect list element including a storage address of the associated or corresponding data element so that other data elements can reference that data element. This apparatus reads, from each data element, identification information of an indirect list element corresponding to that data element and generates a hash value. This apparatus further reads, from each data element, identification information of an indirect list element corresponding to a data element referenced by that data element and generates a hash value. On condition that these hash values are equivalent to each other, the apparatus determines that the database is consistent.Type: GrantFiled: September 27, 2006Date of Patent: October 28, 2008Assignee: International Business Machines CorporationInventors: Tatsuyuki Shiomi, Shigeko Mori, Takashi Yonezawa
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Patent number: 7440936Abstract: A method and system are provided for identifying and selecting an optimal access method for reading an ILDS. A counter is associated with a pointer and identifies the number of times a database partition has been reorganized. Based upon a comparison of the counter from the pointer with a second counter from a second pointer, the optimal access method is determined. Since the comparison of pointers is conducted without reading the ILDS, the optimal access method is determined prior to reading the ILDS, which improves pointer checking performance. A direct access method may be selected if the access rate is lower than a predetermining threshold value, a sequential access method may be selected if the access rate is higher than a predetermined threshold value, and a skip sequential access method may be selected if the access rate is within a predetermined value.Type: GrantFiled: October 7, 2004Date of Patent: October 21, 2008Assignee: International Business Machines CorporationInventor: Shigeko Mori
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Patent number: 7299249Abstract: The invention efficiently determines consistency of a database by a system including a reading section that sequentially reads from the respective segment data included in the database pointers to other segment data, an address recording section that records storage addresses of segment data from which the pointers have been read by the reading section, and a pointer recording section that records the pointers read by the reading section. Then, when segment data is updated in an area in which the pointer reading has been completed, a storage address recorded in the address recording section is modified and a pointer recorded in the pointer recording section is modified. Then, it is determined that the database is consistent on condition that the respective storage addresses recorded in the address recording section coincide with the respective pointers recorded in the pointer recording section.Type: GrantFiled: August 4, 2006Date of Patent: November 20, 2007Assignee: International Business Machines CorporationInventors: Shigeko Mori, Ichiroh Teshima
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Publication number: 20070106703Abstract: An apparatus, system, and method are disclosed for determining the consistency of a database including indirect reference to data elements. There is provided an apparatus for determining consistency of a database. This database includes, in association with each data element, an indirect list element including a storage address of the associated or corresponding data element so that other data elements can reference that data element. This apparatus reads, from each data element, identification information of an indirect list element corresponding to that data element and generates a hash value. This apparatus further reads, from each data element, identification information of an indirect list element corresponding to a data element referenced by that data element and generates a hash value. On condition that these hash values are equivalent to each other, the apparatus determines that the database is consistent.Type: ApplicationFiled: September 27, 2006Publication date: May 10, 2007Inventors: Tatsuyuki Shiomi, Shigeko Mori, Takashi Yonezawa
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Publication number: 20070043775Abstract: The invention efficiently determines consistency of a database by a system including a reading section that sequentially reads from the respective segment data included in the database pointers to other segment data, an address recording section that records storage addresses of segment data from which the pointers have been read by the reading section, and a pointer recording section that records the pointers read by the reading section. Then, when segment data is updated in an area in which the pointer reading has been completed, a storage address recorded in the address recording section is modified and a pointer recorded in the pointer recording section is modified. Then, it is determined that the database is consistent on condition that the respective storage addresses recorded in the address recording section coincide with the respective pointers recorded in the pointer recording section.Type: ApplicationFiled: August 4, 2006Publication date: February 22, 2007Inventors: Shigeko Mori, Ichiroh Teshima
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Publication number: 20060106781Abstract: A database management system for determining consistency in a hierarchical database sequentially reads pointers of a plurality of segment data, generates an address hash value, which is a hash value of retention addresses of the segment data having been read, generates a pointer hash value, which is a hash value of the pointers included in the segment data having been read, corrects the address hash value, when the contents of the address already read is updated, based a retention address of segment data added or deleted by the update, corrects the pointer hash value based on each pointer changed by the update, and determines that the hierarchical database is consistent if the corrected address hash value coincides with the corrected pointer hash value.Type: ApplicationFiled: November 8, 2005Publication date: May 18, 2006Applicant: International Business Machines CorporationInventors: Shigeko Mori, Toshikazu Takahashi, Ichiroh Teshima
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Publication number: 20060080270Abstract: A method and system are provided for identifying and selecting an optimal access method for reading an ILDS. A counter is associated with a pointer and identifies the number of times a database partition has been reorganized. Based upon a comparison of the counter from the pointer with a second counter from a second pointer, the optimal access method is determined. Since the comparison of pointers is conducted without reading the ILDS, the optimal access method is determined prior to reading the ILDS, which improves pointer checking performance. A direct access method may be selected if the access rate is lower than a predetermining threshold value, a sequential access method may be selected if the access rate is higher than a predetermined threshold value, and a skip sequential access method may be selected if the access rate is within a predetermined value.Type: ApplicationFiled: October 7, 2004Publication date: April 13, 2006Inventor: Shigeko Mori
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Patent number: 6219689Abstract: A parallel transaction processing system performs efficient parallel processing of multiple tasks and includes a queue for storing a plurality of transaction data which can be processed independently, a control table containing control information for the queue and means for operating a plurality of tasks which performs the same processing on the transaction data stored in the queue. A corresponding parallel transaction processing method includes the steps of: storing a plurality of transaction data in a queue which can be processed independently, providing a control table containing control information for the queue, and operating a plurality of tasks which perform the same processing on the transaction data stored in the queue.Type: GrantFiled: August 12, 1998Date of Patent: April 17, 2001Assignee: International Business Machines CorporationInventor: Shigeko Mori