Patents by Inventor Dongwan Zhao

Dongwan Zhao 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: 12189977
    Abstract: A storage device is disclosed. The storage device may include a host interface to receive a write request from a host, the write request may include a data and a logical address of the data. The storage device may further include a first storage for the data. The storage device may further include a retention period determiner to determine a retention period for the data. The storage device may further include a translation layer to select a physical address in the first storage to store the data based at least in part on the retention period. The storage device may further include a second storage for a logical-to-physical mapping table to map the logical address to the physical address and the retention period. Finally, the storage device may include a controller to program the data into the physical address in the first storage.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: January 7, 2025
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ramdas P. Kachare, Dongwan Zhao
  • Publication number: 20240397152
    Abstract: A device is disclosed. The device may include a storage device to store a content stream, and a network interface device to transmit a filtered content stream. A processing circuit may be connected to the storage device and the network interface device. The processing circuit may apply a filtering policy to the content stream to produce the filtered content stream.
    Type: Application
    Filed: August 25, 2023
    Publication date: November 28, 2024
    Inventors: Ramdas P. KACHARE, Dongwan ZHAO, Jimmy LAU, Luis Vitorio CARGNINI, Joseph FINDLEY
  • Patent number: 12124727
    Abstract: A system and method for automatic deletion in a persistent storage device. In some embodiments, the method includes: receiving, by a persistent storage device, a first read command, for a first logical block of data; determining that a total number of read operations, for the first logical block of data, equals or exceeds a first threshold value; and in response to determining that the total number of read operations, for the first logical block of data, equals or exceeds the first threshold value, arranging for deletion of the first logical block of data from the persistent storage device.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: October 22, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ramdas P. Kachare, Dongwan Zhao
  • Publication number: 20240311318
    Abstract: A device is disclosed. An interface may connect the device to a processor. The interface may support a first protocol. A first storage and a second storage may the data. The second storage may support a second protocol different from the first protocol. A controller may be connected to the interface and the first storage. A bridge may be connected to the interface, the first storage, and the second storage. The bridge may include a filter configured to coordinate a data transfer between the first storage and the second storage.
    Type: Application
    Filed: November 17, 2023
    Publication date: September 19, 2024
    Inventors: Ramdas P. KACHARE, Jimmy LAU, Amir BEYGI, Mohammadreza SOLTANIYEH, Tinh LAC, Divya SUBBANNA, Mostafa AGHAEE, Dongwan ZHAO, William TIEN, Varadraj Ninad SINAI KAKODKAR, Luis Vitorio CARGNINI
  • Publication number: 20240311049
    Abstract: A memory device is disclosed. The memory device may include an interface to connect the memory device to a processor, a first storage for a data, and a second storage for the data. A controller may process a request received from the processor via the interface using the first storage or the second storage. A policy engine may instruct the controller regarding a storing of the data in the first storage or the second storage.
    Type: Application
    Filed: November 20, 2023
    Publication date: September 19, 2024
    Inventors: Ramdas P. KACHARE, Jimmy LAU, Mohammadreza SOLTANIYEH, Amir BEYGI, Tinh LAC, Divya SUBBANNA, Mostafa AGHAEE, Dongwan ZHAO, William TIEN, Varadraj Ninad SINAI KAKODKAR, Luis Vitorio CARGNINI
  • Publication number: 20230198740
    Abstract: A multi-function device is disclosed. The multi-function device may include a first connector for communicating with a storage device, a second connector for communicating with a Fully Homomorphic Encryption (FHE) circuit, and a third connector for communicating with a host processor. The multi-function device is configured to expose the storage device to the host processor via the third connector.
    Type: Application
    Filed: February 10, 2023
    Publication date: June 22, 2023
    Inventors: Ramdas KACHARE, Dongwan ZHAO, Jimmy LAU
  • Publication number: 20230195351
    Abstract: A system and method for automatic deletion in a persistent storage device. In some embodiments, the method includes: receiving, by a persistent storage device, a first read command, for a first logical block of data; determining that a total number of read operations, for the first logical block of data, equals or exceeds a first threshold value; and in response to determining that the total number of read operations, for the first logical block of data, equals or exceeds the first threshold value, arranging for deletion of the first logical block of data from the persistent storage device.
    Type: Application
    Filed: January 24, 2022
    Publication date: June 22, 2023
    Inventors: Ramdas P. KACHARE, Dongwan ZHAO
  • Publication number: 20230195320
    Abstract: A multi-function device is disclosed. The multi-function device may include a first connector for communicating with a storage device, a second connector for communicating with a first computational storage unit, a third connector for communicating with a second computational storage unit, and a fourth connector for communicating with a host processor. The multi-function device is configured to expose the storage device and the first computational storage unit to the host processor via the fourth connector.
    Type: Application
    Filed: February 10, 2023
    Publication date: June 22, 2023
    Inventors: Ramdas KACHARE, Dongwan ZHAO, Jimmy LAU, Luis Vitorio CARGNINI, Joseph FINDLEY
  • Publication number: 20230120184
    Abstract: A method may include receiving, at a memory system having a block modification characteristic, a write request for a data structure arranged in the memory, storing, based on the write request, data in the data structure, receiving, at the memory system, a read request for the data structure, reading, based on the read request, the data from the data structure, and indicating, based on the reading, the data for modification. The method may further include receiving, at the memory system, a second write request for the data structure, wherein the first write request and the second write request have an order, storing, based on the second write request, second data in the data structure, and determining, based on the read request, based on the order, the first data, wherein the reading may be further based on the determining.
    Type: Application
    Filed: May 18, 2022
    Publication date: April 20, 2023
    Inventors: Ramdas P. KACHARE, Dongwan ZHAO
  • Publication number: 20220365707
    Abstract: A storage device is disclosed. The storage device may include a host interface to receive a write request from a host, the write request may include a data and a logical address of the data. The storage device may further include a first storage for the data. The storage device may further include a retention period determiner to determine a retention period for the data. The storage device may further include a translation layer to select a physical address in the first storage to store the data based at least in part on the retention period. The storage device may further include a second storage for a logical-to-physical mapping table to map the logical address to the physical address and the retention period. Finally, the storage device may include a controller to program the data into the physical address in the first storage.
    Type: Application
    Filed: July 1, 2021
    Publication date: November 17, 2022
    Inventors: Ramdas P. KACHARE, Dongwan ZHAO
  • Publication number: 20170046102
    Abstract: A memory channel command interface for one or more memory channels includes, for each memory channel, programmable storage for memory commands, a single channel processor for executing the memory commands, and a task engine for communicating output of the single channel processor to a memory medium. The memory commands may be organized into jobs including operations that include tasks. The tasks may be stored as part of operations in an operation memory, or may be stored in a task memory with pointers to the tasks being stored as part of operations in the operation memory. The memory channel command interface may further include a memory medium status storage that stores a priority indication for a memory command, based on a condition other than order of arrival or receipt of the memory command, and the single channel processor controls order of execution of memory commands based on the priority indication.
    Type: Application
    Filed: August 5, 2016
    Publication date: February 16, 2017
    Inventors: Jinjin He, Wei Xu, Young-Ta Wu, Ka-Ming Keung, Xueting Yu, Dongwan Zhao, Rohitkumar Makhija, Jie Chen, Madhu Kalluri, Qinghua Fu