Patents by Inventor Seyeong Bae

Seyeong Bae 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).

  • Patent number: 11461363
    Abstract: Methods, systems, and computer-readable storage media for receiving a first storage request indicating a first type of data and a first size, identifying a first sub-space based on the first type, the first sub-space including a dense group of dense segments and a sparse group of sparse segments, and determining that the dense group of the first sub-space is absent a dense segment to store data of the first storage request based on the first size, and in response: determining whether the sparse group of the first sub-space includes a sparse segment to store the data of the first storage request based on the first size, and storing the data of the first storage request to the sparse group of the first sub-space in response to determining that the sparse group of the first sub-space includes a sparse segment to store the data of the first storage request.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: October 4, 2022
    Assignee: SAP SE
    Inventors: Seungho Yoo, Ji Hoon Jang, Seyeong Bae, Yong Sik Kwon, Hyeong Seog Kim
  • Publication number: 20220292099
    Abstract: Techniques and solutions are described for implementing virtual table schemas. A virtual table schema includes a logical pointer that is used to target a table that includes data and is defined according to the virtual table schema. Values assigned to the logical pointer can be used to target tables at different locations, such as in-memory storage or in dynamic storage of a database management system. The dynamic storage includes an in-memory buffer cache and persistent storage. The logical pointer can be updated to point to the in-memory storage or the dynamic storage, including based on use statistics. Similarly, a table having data for the virtual table can be transitioned between the in-memory buffer cache and the persistent storage, including based on use statistics for the virtual table. A value for the logical pointer can be updated when the table is transferred between the in-memory buffer cache and the dynamic storage.
    Type: Application
    Filed: June 2, 2022
    Publication date: September 15, 2022
    Applicant: SAP SE
    Inventors: Ruediger Karl, Mihnea Andrei, Juchang Lee, Stefan Baeuerle, Seyeong Bae, Joo Yeon Lee
  • Patent number: 11379486
    Abstract: Techniques and solutions are described for implementing virtual table schemas. A virtual table schema includes a logical pointer that is used to target a table that includes data and is defined according to the virtual table schema. Values assigned to the logical pointer can be used to target tables at different locations, such as in-memory storage or in dynamic storage of a database management system. The dynamic storage includes an in-memory buffer cache and persistent storage. The logical pointer can be updated to point to the in-memory storage or the dynamic storage, including based on use statistics. Similarly, a table having data for the virtual table can be transitioned between the in-memory buffer cache and the persistent storage, including based on use statistics for the virtual table. A value for the logical pointer can be updated when the table is transferred between the in-memory buffer cache and the dynamic storage.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: July 5, 2022
    Assignee: SAP SE
    Inventors: Ruediger Karl, Mihnea Andrei, Juchang Lee, Stefan Baeuerle, Seyeong Bae, Joo Yeon Lee
  • Publication number: 20220197922
    Abstract: Techniques and solutions are described for implementing virtual table schemas. A virtual table schema includes a logical pointer that is used to target a table that includes data and is defined according to the virtual table schema. Values assigned to the logical pointer can be used to target tables at different locations, such as in a federated database system or in a cache of a database management system of a central computing system. When data associated with the virtual table is requested, or prior to receiving the request, the data can be stored in a table in the cache. The logical pointer can be updated to reference the cache. If the cache is full, the table can be removed from the cache, and the logical pointer can be updated to reference a table at the federated database system.
    Type: Application
    Filed: January 4, 2022
    Publication date: June 23, 2022
    Applicant: SAP SE
    Inventors: Ruediger Karl, Mihnea Andrei, Juchang Lee, Stefan Baeuerle, Seyeong Bae, Joo Yeon Lee
  • Patent number: 11347294
    Abstract: The present disclosure relates to an apparatus and a method for managing power in an electronic device. According to the various embodiments of the present disclosure, a method for operating an electronic device comprises determining a wake-up period based on at least one of a received signal strength and a state of the electronic device, and controlling a wireless communication module of the electronic device based on the wake-up period.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: May 31, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jisu Oh, Seyoun Lim, Dong-Gi Jang, Jin-Hyo Kim, Seyeong Bae
  • Patent number: 11321344
    Abstract: Techniques and solutions are described for implementing virtual table schemas. A virtual table schema includes a logical pointer that is used to target a table that includes data and is defined according to the virtual table schema. Values assigned to the logical pointer can be used to target tables at different locations, such as in a federated database system or in a cache of a database management system of a central computing system. When data associated with the virtual table is requested, or prior to receiving the request, the data can be stored in a table in the cache. The logical pointer can be updated to reference the cache. If the cache is full, the table can be removed from the cache, and the logical pointer can be updated to reference a table at the federated database system.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: May 3, 2022
    Assignee: SAP SE
    Inventors: Ruediger Karl, Mihnea Andrei, Juchang Lee, Stefan Baeuerle, Seyeong Bae, Joo Yeon Lee
  • Publication number: 20210311962
    Abstract: Methods, systems, and computer-readable storage media for receiving a first storage request indicating a first type of data and a first size, identifying a first sub-space based on the first type, the first sub-space including a dense group of dense segments and a sparse group of sparse segments, and determining that the dense group of the first sub-space is absent a dense segment to store data of the first storage request based on the first size, and in response: determining whether the sparse group of the first sub-space includes a sparse segment to store the data of the first storage request based on the first size, and storing the data of the first storage request to the sparse group of the first sub-space in response to determining that the sparse group of the first sub-space includes a sparse segment to store the data of the first storage request.
    Type: Application
    Filed: March 31, 2020
    Publication date: October 7, 2021
    Inventors: Seungho Yoo, Ji Hoon Jang, Seyeong Bae, Yong Sik Kwon, Hyeong Seog Kim
  • Patent number: 11074141
    Abstract: A system includes initiation of recovery from a crash of a database instance and, during the recovery, identification of a subset of pages of a memory image of the database instance which are not reusable and replacement of the identified subset of pages with corresponding pages of the savepoint image.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: July 27, 2021
    Assignee: SAP SE
    Inventors: Yong Sik Kwon, Changseob Lee, Seyeong Bae, Beomsoo Kim, Youngho Yoo
  • Publication number: 20210182157
    Abstract: A system includes initiation of recovery from a crash of a database instance and, during the recovery, identification of a subset of pages of a memory image of the database instance which are not reusable and replacement of the identified subset of pages with corresponding pages of the savepoint image.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 17, 2021
    Inventors: Yong Sik Kwon, Changseob Lee, Seyeong Bae, Beomsoo Kim, Youngho Yoo
  • Publication number: 20210089540
    Abstract: Techniques and solutions are described for implementing virtual table schemas. A virtual table schema includes a logical pointer that is used to target a table that includes data and is defined according to the virtual table schema. Values assigned to the logical pointer can be used to target tables at different locations, such as in-memory storage or in dynamic storage of a database management system. The dynamic storage includes an in-memory buffer cache and persistent storage. The logical pointer can be updated to point to the in-memory storage or the dynamic storage, including based on use statistics. Similarly, a table having data for the virtual table can be transitioned between the in-memory buffer cache and the persistent storage, including based on use statistics for the virtual table. A value for the logical pointer can be updated when the table is transferred between the in-memory buffer cache and the dynamic storage.
    Type: Application
    Filed: December 13, 2019
    Publication date: March 25, 2021
    Applicant: SAP SE
    Inventors: Ruediger Karl, Mihnea Andrei, Juchang Lee, Stefan Baeuerle, Seyeong Bae, Joo Yeon Lee
  • Publication number: 20210089550
    Abstract: Techniques and solutions are described for implementing virtual table schemas. A virtual table schema includes a logical pointer that is used to target a table that includes data and is defined according to the virtual table schema. Values assigned to the logical pointer can be used to target tables at different locations, such as in a federated database system or in a cache of a database management system of a central computing system. When data associated with the virtual table is requested, or prior to receiving the request, the data can be stored in a table in the cache. The logical pointer can be updated to reference the cache. If the cache is full, the table can be removed from the cache, and the logical pointer can be updated to reference a table at the federated database system.
    Type: Application
    Filed: December 13, 2019
    Publication date: March 25, 2021
    Applicant: SAP SE
    Inventors: Ruediger Karl, Mihnea Andrei, Juchang Lee, Stefan Baeuerle, Seyeong Bae, Joo Yeon Lee
  • Publication number: 20210089552
    Abstract: Techniques and solutions are described for implementing virtual table schemas. A virtual table schema includes a logical pointer that is used to target a table that includes data and is defined according to the virtual table schema. Values assigned to the logical pointer can be used to target tables at different locations, such as tables located in a remote database system, replica tables containing data replicated from a table in a remote database system, or cached table data. Replica tables targeted by a logical pointer of a virtual table schema can have various locations, such as being located in main memory of a database system, being located in a dynamic storage system, or being located in a data lake. Replica tables can be transferred between locations based on various criteria.
    Type: Application
    Filed: December 13, 2019
    Publication date: March 25, 2021
    Applicant: SAP SE
    Inventors: Ruediger Karl, Mihnea Andrei, Juchang Lee, Stefan Baeuerle, Seyeong Bae, Joo Yeon Lee
  • Patent number: 10949310
    Abstract: Restoring a database image of a secondary database system comprises initializing the database image from a recovery image that includes metadata logs and non-metadata logs, of which at least one metadata log includes an undo log of non-committed data that is applied to the initialized database image. A first pagelist and first indexes are then rebuilt based on first data segments of the database image and the corresponding metadata objects. The database image is then updated by replaying the metadata redo log generated from the undo log, the metadata logs, and the non-metadata logs. Then, a second pagelist and second indexes for the database system are rebuilt based on second data segments of the database image and the corresponding non-metadata objects, while each of the first data segments is statically separated from the second data segments in physical memory space. Related apparatus, systems, techniques and articles are also described.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: March 16, 2021
    Assignee: SAP SE
    Inventors: Hyeong Seog Kim, Yong Sik Kwon, Seyeong Bae, Ji Hoon Jang, Won Wook Hong
  • Publication number: 20200089306
    Abstract: The present disclosure relates to an apparatus and a method for managing power in an electronic device. According to the various embodiments of the present disclosure, a method for operating an electronic device comprises determining a wake-up period based on at least one of a received signal strength and a state of the electronic device, and controlling a wireless communication module of the electronic device based on the wake-up period.
    Type: Application
    Filed: August 5, 2016
    Publication date: March 19, 2020
    Inventors: Jisu OH, Seyoun LIM, Dong-Gi JANG, Jin-Hyo KIM, Seyeong BAE
  • Patent number: 10521314
    Abstract: Improved database consistency and consistency checking may be provided by cross-referenced split data storage for irregular fields using auxiliary pointers. A fixed-size memory slot may be allocated to a database table in a database system, where the fixed-size memory slot has an address. A variable-size memory slot may be allocated to the database table, where the variable-size memory slot has a different address. For an irregular field in the database table, one or more properties of the irregular field may be stored in the fixed-size memory slot. The one or more properties may include a first pointer which may have the address of the variable-size memory slot. For the irregular field in the database table, at least a portion of data of the irregular field and a second pointer, which may have the address of the fixed-size memory slot, may be stored in the variable-size memory slot.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: December 31, 2019
    Assignee: SAP SE
    Inventors: Seyeong Bae, Ji Hoon Jang, Yong Sik Kwon, Hyeong Seog Kim
  • Publication number: 20190303251
    Abstract: Improved database consistency and consistency checking may be provided by cross-referenced split data storage for irregular fields using auxiliary pointers. A fixed-size memory slot may be allocated to a database table in a database system, where the fixed-size memory slot has an address. A variable-size memory slot may be allocated to the database table, where the variable-size memory slot has a different address. For an irregular field in the database table, one or more properties of the irregular field may be stored in the fixed-size memory slot. The one or more properties may include a first pointer which may have the address of the variable-size memory slot. For the irregular field in the database table, at least a portion of data of the irregular field and a second pointer, which may have the address of the fixed-size memory slot, may be stored in the variable-size memory slot.
    Type: Application
    Filed: March 30, 2018
    Publication date: October 3, 2019
    Applicant: SAP SE
    Inventors: Seyeong Bae, Ji Hoon Jang, Yong Sik Kwon, Hyeong Seog Kim
  • Patent number: 10162710
    Abstract: A computer implemented method is provided. The method comprises initializing a first database image of a first database system based on a recovery image comprising committed transactions, visible uncommitted transactions, and undo logs associated with the visible uncommitted transactions, undoing the visible uncommitted transactions using the undo logs, generating redo logs from the undo logs, replaying the redo logs to create invisible uncommitted transactions, and after replaying the redo logs, replaying transaction logs received from a second database system. Related apparatus, systems, techniques and articles are also described.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: December 25, 2018
    Assignee: SAP SE
    Inventors: Yong Sik Kwon, Hyeong Seog Kim, Kyu Hwan Kim, Seyeong Bae, Joo Yeon Lee, Beomsoo Kim, Juchang Lee, Marcel Birn
  • Publication number: 20180150360
    Abstract: A computer implemented method is provided. The method comprises initializing a first database image of a first database system based on a recovery image comprising committed transactions, visible uncommitted transactions, and undo logs associated with the visible uncommitted transactions, undoing the visible uncommitted transactions using the undo logs, generating redo logs from the undo logs, replaying the redo logs to create invisible uncommitted transactions, and after replaying the redo logs, replaying transaction logs received from a second database system. Related apparatus, systems, techniques and articles are also described.
    Type: Application
    Filed: November 28, 2016
    Publication date: May 31, 2018
    Inventors: Yong Sik Kwon, Hyeong Seog Kim, Kyu Hwan Kim, Seyeong Bae, Joo Yeon Lee, Beomsoo Kim, Juchang Lee, Marcel Birn
  • Publication number: 20180150363
    Abstract: Restoring a database image of a secondary database system comprises initializing the database image from a recovery image that includes metadata logs and non-metadata logs, of which at least one metadata log includes an undo log of non-committed data that is applied to the initialized database image. A first pagelist and first indexes are then rebuilt based on first data segments of the database image and the corresponding metadata objects. The database image is then updated by replaying the metadata redo log generated from the undo log, the metadata logs, and the non-metadata logs. Then, a second pagelist and second indexes for the database system are rebuilt based on second data segments of the database image and the corresponding non-metadata objects, while each of the first data segments is statically separated from the second data segments in physical memory space. Related apparatus, systems, techniques and articles are also described.
    Type: Application
    Filed: November 28, 2016
    Publication date: May 31, 2018
    Inventors: Hyeong Seog KIM, Yong Sik KWON, Seyeong BAE, Ji Hoon JANG, Won Wook HONG