Patents by Inventor Ka-Ming Keung

Ka-Ming Keung 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: 11366753
    Abstract: A storage access request to access a solid state drive (SSD) is received. A storage access timer is set with a time duration, where the time duration is based on a desired performance of the SSD. A non-volatile memory command associated with the storage access request is sent to non-volatile memory. The storage access timer is started. A determination is made whether the non-volatile memory completed execution of the non-volatile memory command after the storage access timer indicates that the time duration elapsed. An indication that the storage access request is complete is sent to a host if the non-volatile memory completed execution of the non-volatile memory command. Alternatively, the storage access timer is reset with the time duration if the non-volatile memory has not completed execution of the non-volatile memory command.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: June 21, 2022
    Assignee: Marvell Asia Pte Ltd
    Inventors: Ka-Ming Keung, Dung Viet Nguyen
  • Publication number: 20200042443
    Abstract: A storage access request to access a solid state drive (SSD) is received. A storage access timer is set with a time duration, where the time duration is based on a desired performance of the SSD. A non-volatile memory command associated with the storage access request is sent to non-volatile memory. The storage access timer is started. A determination is made whether the non-volatile memory completed execution of the non-volatile memory command after the storage access timer indicates that the time duration elapsed. An indication that the storage access request is complete is sent to a host if the non-volatile memory completed execution of the non-volatile memory command. Alternatively, the storage access timer is reset with the time duration if the non-volatile memory has not completed execution of the non-volatile memory command.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Applicant: Marvell World Trade Ltd.
    Inventors: Ka-Ming Keung, Dung Viet Nguyen
  • Patent number: 9996461
    Abstract: A method for storing data on a storage device includes receiving data to be stored and a logical address for storing the data. A physical address is determined and the data to be stored is stored at the determined physical address. A table that associates logical addresses with physical addresses is examined to determine a difference relationship between the determined physical address and a corresponding physical address for one of other logical addresses. Information representing the determined physical address is stored in the table, in association with the received logical address, as a function of the determined difference relationship. A data storage device includes controller circuitry and memory for storing a lookup table that associates logical addresses with physical addresses. The controller circuitry operates in accordance with the method.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: June 12, 2018
    Assignee: Marvell International Ltd.
    Inventors: Wei Xu, Ka-Ming Keung, Fei Sun, Jinjin He, ChengKuo Huang, Tony Yoon
  • Patent number: 9864699
    Abstract: Aspects of the disclosure provide a circuit that includes a memory circuit and a controller circuit. The memory circuit is to have a look-up table (LUT) that associates logical address used in computation with physical address used in storage space. The LUT includes a first level LUT with first level entries corresponding to logical addresses, each first level entry includes an indicator field and a content field, and the indicator field is indicative of a compressible/non-compressible attribute of a physical address associated with a logical address. The controller circuit is to receive a logical address, and translate the logical address into a physical address associated with the logical address based on the LUT.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: January 9, 2018
    Assignee: Marvell International Ltd.
    Inventors: Wei Xu, Fei Sun, Ka-Ming Keung, Jinjin He, Young-Ta Wu, Tony Yoon
  • 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