MEMORY CONTROLLER OPERATING METHOD OF MEMORY CONTROLLER AND MEMORY SYSTEM

    公开(公告)号:US20210265005A1

    公开(公告)日:2021-08-26

    申请号:US17317506

    申请日:2021-05-11

    IPC分类号: G11C29/42 G06F11/10 G06F3/06

    摘要: An operating method of a memory controller that individually controls a plurality of memory units includes reading respective segments from the plurality of memory units based on a plurality of control signals; generating an output codeword based on the segments; performing error correction decoding on the output codeword; when a result of the error correction decoding indicates success, updating at least one of a plurality of accumulated error pattern information respectively corresponding to the plurality of memory units based on the result of the error correction decoding; and when the result of the error correction decoding indicates failure, regulating at least one of the plurality of control signals based on at least one of the plurality of accumulated error pattern information.

    MEMORY CONTROLLER, OPERATING METHOD OF MEMORY CONTROLLER AND MEMORY SYSTEM

    公开(公告)号:US20200050513A1

    公开(公告)日:2020-02-13

    申请号:US16357431

    申请日:2019-03-19

    IPC分类号: G06F11/10 G06F3/06

    摘要: An operating method of a memory controller that individually controls a plurality of memory units includes reading respective segments from the plurality of memory units based on a plurality of control signals; generating an output codeword based on the segments; performing error correction decoding on the output codeword; when a result of the error correction decoding indicates success, updating at least one of a plurality of accumulated error pattern information respectively corresponding to the plurality of memory units based on the result of the error correction decoding; and when the result of the error correction decoding indicates failure, regulating at least one of the plurality of control signals based on at least one of the plurality of accumulated error pattern information.

    MEMORY DEVICE, SYSTEM INCLUDING THE SAME, AND OPERATING METHOD OF MEMORY DEVICE

    公开(公告)号:US20240248850A1

    公开(公告)日:2024-07-25

    申请号:US18416558

    申请日:2024-01-18

    IPC分类号: G06F12/0891 G06F12/126

    CPC分类号: G06F12/0891 G06F12/126

    摘要: A memory system includes a system controller and a memory device. The system controller includes a memory controller configured to transmit a received address to a decoding module, and output, to the host device, decoded data. The decoding module includes a cache device and a decoder. The decoding module is configured to receive the data corresponding to the address from the memory device. The decoding module is configured transmit the data stored in the cache device to the memory controller in response to determining that the data corresponding to the address is stored in the cache device. The decoding module is configured to decode the data corresponding to the address to generate decoded data and store the decoded result in the cache device in response to determining that the data corresponding to the address is not stored in the cache device.

    MEMORY DEVICE AND REFRESH METHOD THEREOF
    8.
    发明公开

    公开(公告)号:US20230420027A1

    公开(公告)日:2023-12-28

    申请号:US18197084

    申请日:2023-05-14

    IPC分类号: G11C11/406

    CPC分类号: G11C11/40622 G11C11/40615

    摘要: A memory device may include counters respectively corresponding to rows and each configured to count a number of accesses to a corresponding row, a refresh control circuit, a queue, and first flags respectively corresponding to the rows. The refresh control circuit may change a second flag set in a refresh period every refresh period, and determine whether to put an incoming row address into the queue based on a count value of a counter corresponding to a target row indicated by the incoming row address among the counters, a first flag value of a first flag corresponding to the target row among the first flags, and a second flag value of the second flag set in a current refresh period.

    MEMORY DEVICE AND METHOD READING DATA

    公开(公告)号:US20210334033A1

    公开(公告)日:2021-10-28

    申请号:US17090726

    申请日:2020-11-05

    IPC分类号: G06F3/06

    摘要: A method for reading data from a memory includes; reading a codeword from the memory cells, correcting the errors when a number of errors in the codeword is less than a maximum number of correctable errors, correcting the errors when the number of errors in the codeword is equal to the maximum number of correctable errors and the errors correspond to a same sub-word line, and outputting signal indicating that the errors are an uncorrectable error when the number of errors of the codeword is equal to the maximum number of correctable errors and the errors correspond to different sub-word lines.

    ERROR CORRECTION CIRCUIT OF SEMICONDUCTOR MEMORY DEVICE AND SEMICONDUCTOR MEMORY DEVICE

    公开(公告)号:US20210224156A1

    公开(公告)日:2021-07-22

    申请号:US16926000

    申请日:2020-07-10

    IPC分类号: G06F11/10 H03M13/15 H03M13/00

    摘要: An error correction circuit of a semiconductor memory device includes an error correction code (ECC) encoder and an ECC decoder. The ECC encoder generates, based on a main data, a parity data using an ECC represented by a generation matrix and stores a codeword including the main data and the parity data in a target page of a memory cell array. The ECC decoder reads the codeword from the target page as a read codeword based on an address provided from outside the semiconductor memory device to generate different syndromes based on the read codeword and a parity check matrix which is based on the ECC, and applies the different syndromes to the main data in the read codeword to correct a single bit error when the single bit error exists in the main data or to correct two bit errors when the two bit errors occur in adjacent two memory cells in the target page.