公开(公告)号：US20180067647A1

公开(公告)日：2018-03-08

申请号：US15256893

申请日：2016-09-06

Applicant: Seagate Technology LLC

Inventor： Mehmet Fatih Erden ,  Scott Warmka ,  Mark Allen Gaertner ,  Jon D. Trantham

IPC: G06F3/06 ,  G06F12/10 ,  G11B5/09

CPC classification number: G06F3/061 ,  G06F3/0658 ,  G06F3/0659 ,  G06F3/0676 ,  G11B5/012 ,  G11B5/4886

Abstract: Two or more read modes of a data storage system and device are defined. The data storage device is capable of concurrently reading from two or more tracks using two or more read transducers. The read modes utilize different numbers of the two or more read transducers while reading data. The tread modes are selected based on an operating condition of the data storage system or device.

公开(公告)号：US09613642B1

公开(公告)日：2017-04-04

申请号：US15056755

申请日：2016-02-29

Applicant: Seagate Technology LLC

Inventor： Mehmet Fatih Erden ,  Christopher Anthony Markey ,  Jon D. Trantham

IPC: G11B5/09

CPC classification number: G11B5/09 ,  G11B5/012 ,  G11B5/3977

Abstract: A read/write head includes two or more first transducers of a first type, the first type selected from a magnetic read transducer and a magnetic write transducer. The read/write head includes one or more switching elements coupled to the two or more first transducers. The switching elements are configured to, in response to a control signal, couple a selected one of the two or more first transducers to a preamplifier circuit and decouple others of the two or more first transducers from the preamplifier circuit.

公开(公告)号：US11810651B2

公开(公告)日：2023-11-07

申请号：US16117742

申请日：2018-08-30

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Mehmet Fatih Erden

IPC: G16B30/00 ,  G16B50/30 ,  G16B50/40 ,  G16B50/00 ,  G16B5/00 ,  G11C13/02 ,  B82Y10/00 ,  B82Y15/00 ,  C12Q1/6874 ,  C12Q1/6869

CPC classification number: G16B50/00 ,  G11C13/02 ,  G16B5/00 ,  G16B30/00 ,  G16B50/30 ,  G16B50/40 ,  B82Y10/00 ,  B82Y15/00 ,  C12Q1/6869 ,  C12Q1/6874

Abstract: Systems and methods for multi-dimensional mapping of binary data DNA sequences are described. In one embodiment, the method may include determining a current level of a first DNA base from a sequence of DNA bases based at least in part on a read process of the sequence, determining a current level of a second DNA base after the first DNA base and a current level of a third DNA base after the second DNA base, and decoding binary data from the sequence based at least in part on the determined current level of the first DNA base, the determined current level of the second DNA base, and/or the determined current level of the third DNA base.

公开(公告)号：US11580413B2

公开(公告)日：2023-02-14

申请号：US16117432

申请日：2018-08-30

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Mehmet Fatih Erden

IPC: G06N3/12 ,  G16B50/30 ,  G06V40/10 ,  G06N3/123

Abstract: Systems and methods for timing recovery in DNA storage systems is described. In one embodiment, the present systems and methods include generating a unique pattern of DNA bases and use the unique pattern for a phase-locked loop (PLL) field of a data layout, generating a multidimensional mapping, configuring the multidimensional mapping to include one or more prohibited sequences of DNA bases, identifying a prohibited sequence from the multidimensional mapping and use the prohibited sequence for one or more synch-mark (SM) fields of the data layout, prohibiting a User Data field from using any of the prohibited sequences of DNA bases when converting binary data to DNA bases, identifying random insertion and/or deletion of DNA bases in the User Data field, and repairing the random insertion and/or deletion of DNA bases in the User Data field.

公开(公告)号：US20210203342A1

公开(公告)日：2021-07-01

申请号：US17068218

申请日：2020-10-12

Applicant: Seagate Technology LLC

Inventor： Mehmet Fatih Erden

IPC: H03M1/10 ,  H03M1/06

Abstract: Systems and methods are disclosed for improving data channel design by applying transform domain analytics to more reliably extract user data from a signal. In certain embodiments, an apparatus may comprise a channel circuit configured to receive an analog signal at an input of the channel circuit, and sample the analog signal to obtain a set of signal samples. The channel circuit may further apply a filter configured to perform transform domain analysis to the set of signal samples to generate a first subset of samples, the first subset including fewer transitions and having a higher signal to noise ratio (SNR) than the set of signal samples. The channel circuit may detect first bit transform domain representation values from the first subset, and determine channel bit values encoded in the analog signal based on the set of signal samples and using the first bit transform domain representation values detected from the first subset as side information.

公开(公告)号：US11005825B2

公开(公告)日：2021-05-11

申请号：US16189032

申请日：2018-11-13

Applicant: Seagate Technology LLC

Inventor： Mehmet Fatih Erden ,  Walter R. Eppler ,  Robert D. Murphy ,  Greg D. Larrew

IPC: H04L29/06 ,  G06F11/10 ,  H04L9/08 ,  G06N20/20 ,  H04W12/00

Abstract: One or more networks each include a plurality of sensor nodes operable to communicate public data with each other. Each of the plurality of sensor nodes is operable to gather sensor node data and store the sensor node data locally on the sensor node. Duplicate portions of the sensor node data are distributed to the public data of others of the plurality of sensor nodes via the public data paths for backup storage. The system includes a host that is coupled to individually communicate private data with each of the plurality of sensor nodes. Each of the sensor nodes protects the private data from others of the sensor nodes using distributed key management to ensure distributed encryption.

公开(公告)号：US20210133152A1

公开(公告)日：2021-05-06

申请号：US16669712

申请日：2019-10-31

Applicant: Seagate Technology LLC

Inventor： Yasaman Keshtkarjahromi ,  Mehmet Fatih Erden

IPC: G06F16/182 ,  G06F16/903

Abstract: N storage nodes that are coupled via a network are selected to store a file of size |F| and redundancy of size |Fred|. A value Z

公开(公告)号：US20210133151A1

公开(公告)日：2021-05-06

申请号：US16669696

申请日：2019-10-31

Applicant: Seagate Technology LLC

Inventor： Yasaman Keshtkarjahromi ,  Mehmet Fatih Erden

IPC: G06F16/182 ,  G06F16/903

Abstract: A set of N network-coupled edge storage nodes are selected to store a file of size |F|. The N edge storage nodes have heterogeneous storage availability and are ordered from a largest storage availability at the first edge storage node to a smallest availability at the Nth edge storage node. A value Z

公开(公告)号：US10963188B1

公开(公告)日：2021-03-30

申请号：US16454354

申请日：2019-06-27

Applicant: Seagate Technology LLC

Inventor： Mehmet Fatih Erden ,  Manuel Alexander Offenberg

IPC: G06F3/06 ,  G06N3/08 ,  G06K9/00 ,  G06K9/62 ,  G06F13/16

Abstract: A digital sensor stream is received from a sensor. A domain transform is performed on the digital sensor stream to produce first and second substreams. The first substream is larger than the second substream. The first substream is stored in cold storage and the second substream is stored in a second storage that has faster access times than the cold storage. Deep machine learning is performed on the second substream, the results of which may be stored in the second storage.

公开(公告)号：US10475473B2

公开(公告)日：2019-11-12

申请号：US16010930

申请日：2018-06-18

Applicant: Seagate Technology LLC

Inventor： Mehmet Fatih Erden

IPC: G11B5/265 ,  G11B5/29 ,  G11B5/596 ,  G11B5/48 ,  G11B5/31 ,  G11B5/00 ,  G11B5/55

Abstract: A recording head has a first magnetic writer and a second magnetic writer offset from the first magnetic writer in a downtrack and crosstrack direction. The recording head has leads configured to deliver respective first and second write and/or laser currents to the first and second writers. The first and second write and/or laser currents enable the first and second writers to simultaneously write to adjacent tracks of a magnetic disk.