LATCH FOR ZERO/FIXED SKEW DATA STORAGE DEVICE

    公开(公告)号:US20240420734A1

    公开(公告)日:2024-12-19

    申请号:US18603453

    申请日:2024-03-13

    Abstract: An apparatus includes a data storage disc having a read/write surface, and an arm extending along an arm axis and having a head end that supports a head that is configured to interact with the read/write surface. The apparatus also includes a rail extending along a rail axis that is normal to the arm axis, and a carriage coupled to the arm and movably coupled to the rail. The apparatus further includes a latch mechanism configured to releasably hold the carriage to the rail at a fixed position.

    Hot data management in a data storage system

    公开(公告)号:US12135895B2

    公开(公告)日:2024-11-05

    申请号:US17389521

    申请日:2021-07-30

    Abstract: A data storage system may store a first data block having a first data configuration generated by a host in a non-volatile memory that is connected to a data module. A data strategy may be generated with the data module in response to the storage of data with the data strategy consisting of at least one trigger associated with identifying the first data block as hot. The first data block can be replicated to a different memory location with a second data configuration as directed by the data strategy with the first data configuration being different than the second data configuration.

    Selective screen electroplating
    13.
    发明授权

    公开(公告)号:US12116689B2

    公开(公告)日:2024-10-15

    申请号:US17158962

    申请日:2021-01-26

    Abstract: The slow speed of conventional selective electroplating and L-PED (and further requirement of a series of masks in the case of selective electroplating) necessary to generate a metallic three-dimensional object makes conventional selective electroplating and L-PED not viable for mass manufacturing metallic three-dimensional objects. The presently disclosed technology generally utilizes electroplating and L-PED technologies with a screen electroplating process. The screen electroplating process disclosed herein is capable of achieving a faster throughput and a lower workpiece temperature than traditional 3D printing processes can provide, particularly traditional metal 3D printing processes. As a result, the presently disclosed screen electroplating process is able to achieve much faster results in printing a complex three-dimensional metallic structure using electroplating.

    YES AND NO SECRET SHARING WITH HIDDEN ACCESS STRUCTURES

    公开(公告)号:US20240223359A1

    公开(公告)日:2024-07-04

    申请号:US18610167

    申请日:2024-03-19

    CPC classification number: H04L9/085 H04L9/0656

    Abstract: A secret sharing scheme with yes and no shares and having a hidden access structure. The secret sharing scheme may include share generation in which yes shares and no shares are generated for, and distributed to, each party in the secret sharing scheme. In turn, upon an attempt to reconstruct the secret, participants in the reconstruction each provide a share, which is unknown to be a yes share or a no share to the other participants. The secret is only reconstructable if the shares used in the reconstruction include yes shares of a minimal authorized subset of the parties. However, prior to secret reconstruction, the access structure remains hidden and the participants in a reconstruction are unaware of the character of the shares provided by other participants in the reconstruction attempt.

    Secondary key allocation to storage drive failure domains

    公开(公告)号:US11994950B2

    公开(公告)日:2024-05-28

    申请号:US17564078

    申请日:2021-12-28

    CPC classification number: G06F11/1092 G06F21/602 H04L9/14

    Abstract: Failure-domain-specific cryptographic keys for use in control of access to data within failure domains of a storage drive. A unique failure domain-specific cryptographic key may be associated with each of a plurality of failure domains in a storage drive. The failure domains may correspond to any portion of the storage media of a drive that is susceptible to failure while leaving other portions of the storage drive functional. In turn, upon detection of a condition associated with a failure (e.g., an actual or predicted failure) of a failure domain, the associated failure domain-specific cryptographic key may be deleted to preclude further access to data in the failed failure domain. Deletion of the failure domain-specific cryptographic key may be before or after data in the failed failure domain is rebuilt in another portion of a storage drive that is functional.

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