Patents by Inventor Krishnan Subramanian

Krishnan Subramanian 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: 11599577
    Abstract: Features are detected from a sensor signal via a deep-learning network or other feature engineering methods in an edge processing node. Machine-learned metadata is created that describes the features, and a hash is created with the machine-learned metadata. The sensor signal is stored as a content object at the edge processing node, the object being keyed with the hash at, the edge processing node.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: March 7, 2023
    Assignee: Seagate Technology LLC
    Inventors: Lijuan Zhong, Krishnan Subramanian, Mehmet Fatih Erden, Jon D. Trantham
  • Patent number: 11591648
    Abstract: Method of utilizing a nanochannel in combination with at least one magnetic sensor for detecting (e.g., identifying) molecules, cells, and other analytes. Particularly, the method includes bringing molecules, labeled with magnetic nanoparticles (MNPs), in close proximity to the magnetic sensor to identify the molecules via an output signal from the magnetic sensor. The method is particularly suited for identifying nucleotides of DNA and RNA strands.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: February 28, 2023
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Gemma Mendonsa, Riyan A. Mendonsa, Krishnan Subramanian
  • Publication number: 20230054813
    Abstract: A system includes a library compartment, a player and a gas generator. The library compartment houses a plurality of data storage disks. The player is external to the library compartment and comprises a head that is configured to interact with at least one of the plurality of data storage disks. The gas generator is fluidly connected to the player. An embodiment includes a partition between the library compartment and player, the partition including a selectively openable interlock. In an embodiment, the player has a negative fluid pressure relative to the library compartment. A method of controlling an environment in a disk player is also described. The method includes detecting a composition of a fluid environment in the disk player and detecting a pressure of the fluid environment in the disk player.
    Type: Application
    Filed: June 22, 2022
    Publication date: February 23, 2023
    Inventors: Brett R. Herdendorf, Riyan Alex Mendonsa, Krishnan Subramanian, Shawn A. Ruden
  • Publication number: 20230032300
    Abstract: A data storage blade includes a plurality of data storage cartridges, with each of the plurality of data storage cartridges comprising at least one data storage medium. The data storage blade also includes shared drive electronics (SDE) external to the plurality of data storage cartridges. The SDE is configured to control data access operations on different data storage cartridges of the plurality of data storage cartridges. The data storage blade further includes a controller-override mechanism activatable to disable communication between the SDE and the plurality of data storage cartridges.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 2, 2023
    Inventors: Brett R. Herdendorf, Riyan Alex Mendonsa, Krishnan Subramanian, Kevin Lee Van Pelt
  • Patent number: 11570919
    Abstract: An apparatus with a housing which stores a plurality of data storage magazines where each data storage magazine includes a plurality of data storage devices. The housing includes a movable carriage configured to selectively couple a set of data storage devices held by a particular data storage magazine to a host device. The housing also includes a physical locking mechanism configured to selectively prevent data storage devices from coupling to the host device.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: January 31, 2023
    Assignee: SEAGATE TECHNOLOGY, LLC
    Inventors: Brett Herdendorf, Riyan Mendonsa, Krishnan Subramanian
  • Patent number: 11556460
    Abstract: A device is further configured to determine a location within a spatial domain for a first program. The device is further configured to determine a first distance threshold value that corresponds with a first distance away from the location of the first program within the spatial domain. The device is further configured to determine distances between the location of the first program and locations of other programs from the plurality of programs and to identify one or more programs from the plurality of programs that are less than the first distance threshold value. The device is further configured to identify the one or more programs from the plurality of programs that are less than the first distance threshold value.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: January 17, 2023
    Assignee: Bank of America Corporation
    Inventors: Muthu Krishnan Subramanian Rajalakshmi, Arun Sriraman, MadhuSudhanan Krishnamoorthy
  • Publication number: 20230005502
    Abstract: A data storage device includes a data storage disc, an arm, a head, a rotary actuator, and an elevator. The disc has a read/write surface defining an x-y plane. The arm includes a load beam. The head is supported by the load beam, and the head is configured to interact with the read/write surface. The rotary actuator is configured to move a first portion of the arm about a first pivot axis in the x-y plane. The elevator is configured to move the arm in a z direction relative to a vertical surface and is configured to frictionally engage the vertical surface to hold the arm at a z direction position while allowing the rotary actuator to move the first portion of the arm about the first pivot axis. In another aspect, an apparatus includes a stack block, first and second clamp arm assemblies, and first and second piezoelectric actuators.
    Type: Application
    Filed: September 12, 2022
    Publication date: January 5, 2023
    Inventors: Riyan Alex Mendonsa, Brett R. Herdendorf, Krishnan Subramanian
  • Patent number: 11545181
    Abstract: A data storage system include a disk drive having a rotating ramp assembly that may be moved between an engaged and disengaged position. The rotating ramp assembly may include a ramp extension that is not disposed in overlapping relation to a data storage disk location in the drive when in the disengaged position. However, in the engaged position, the ramp extension may overhang a portion of the data storage disk location. In turn, the head extension may include a ramp surface that allows a head assembly to move to a head parking surface when the rotating ramp assembly is in the engaged position. IN turn, the rotating ramp assembly may be rotated while maintaining the head assembly on the head parking surface, which may be arcuate and extend about at least a portion of the rotating ramp assembly.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: January 3, 2023
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Brett R. Herdendorf, Riyan Alex Mendonsa, Krishnan Subramanian
  • Patent number: 11531146
    Abstract: An active metasurface includes a number of periodically-repeated unit cells arranged on a substrate, each of the unit cells including a high-index dielectric block; a heat source positioned to selectively modulate heat applied to the high-index dielectric block; and an insulating undercut region at an interface between the high-index dielectric block and the substrate.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: December 20, 2022
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Aditya Jain, Zoran Jandric, Dan Mohr, Kevin A. Gomez, Krishnan Subramanian
  • Publication number: 20220335970
    Abstract: In one aspect, a data storage device includes a disc, an arm, a head, a linear driver, and an elevator. The disc has a read/write surface defining an x-y plane. The arm has a head end that is movable relative to the disc. The head is configured to interact with the read/write surface. The linear driver is configured to move the arm along a substantially straight line in the x-y plane. The elevator is configured to move the arm in a z direction. In another aspect, rather than a linear driver, the data storage device includes a rotary actuator and a pivot actuator. The arm includes a first portion and a load beam. The rotary actuator is configured to move the first portion about a first pivot axis; the pivot actuator is configured to move the load beam about a second pivot axis relative to the first portion.
    Type: Application
    Filed: April 4, 2022
    Publication date: October 20, 2022
    Inventors: Riyan Alex Mendonsa, Brett R. Herdendorf, Krishnan Subramanian
  • Publication number: 20220335166
    Abstract: A data storage chassis includes a plurality of data storage cartridges, and printed circuit board assembly (PCBA) electronics selectively connectable to one or more of the plurality of data storage cartridges. The data storage chassis also includes a wireless interface controller communicatively coupled to the PCBA electronics. The wireless interface controller facilitates wireless communication of data between the data storage chassis and a host using at least one frequency in a range of frequencies including fifth-generation (5G), millimeter, and sub-millimeter frequency ranges.
    Type: Application
    Filed: April 16, 2021
    Publication date: October 20, 2022
    Inventors: Riyan Alex Mendonsa, Hongtao Zhu, Brett R. Herdendorf, Jon D. Trantham, Krishnan Subramanian
  • Publication number: 20220328068
    Abstract: A data storage device with at least one data storage disc and a head stack assembly. The head stack assembly includes an actuator mechanism and at least one recording head supported by a suspension assembly. The suspension assembly includes a load beam and an actuator arm and at least one actuator is disposed on at least one surface of the load beam or the actuator arm. The at least one actuator is configured to deflect the at least one recording head in a vertical direction relative to the recordable surface of the storage disc.
    Type: Application
    Filed: June 27, 2022
    Publication date: October 13, 2022
    Applicant: Seagate Technology LLC
    Inventors: Brett R Herdendorf, Riyan Alex Mendonsa, Krishnan Subramanian
  • Publication number: 20220319544
    Abstract: A data storage device, and systems thereof, including an actuator arm extending along an actuator axis and one or more rails extending along a rail axis. The rail axis is at an angle to the actuator arm and the actuator arm is movably attached to the one or more rails such that the actuator arm is restricted to linear motion along the one or more rails. Further, the device includes a linear motor positioned adjacent to the actuator arm and adapted to move the actuator arm. In one or more embodiments, the device includes a first actuator arm and a second actuator arm having the distal ends of each connected with at least one head located proximate the connection point.
    Type: Application
    Filed: April 6, 2021
    Publication date: October 6, 2022
    Inventors: Krishnan Subramanian, Brett R. Herdendorf, Riyan Alex Mendonsa
  • Patent number: 11460545
    Abstract: A device includes a light splitter configured to receive a source light beam from a light source and split the source light beam into separate light beams, each emitted through an outlet. The device also includes resonators, each of which is optically coupled to at least one of the outlets and is configured to steer at least one of the light beams.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: October 4, 2022
    Assignee: Seagate Technology LLC
    Inventors: Aditya Jain, Zoran Jandric, Krishnan Subramanian
  • Patent number: 11449238
    Abstract: A data storage system can provide low cost and optimized performance with a cartridge housing multiple separate data storage devices and each of the data storage devices being concurrently engaged by a device player. The device player may have a processor configured to analyze mechanical performance of each data storage device and data performance of data resident in each data storage device.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: September 20, 2022
    Inventors: Riyan A. Mendonsa, Brett R. Herdendorf, Jon D. Trantham, Krishnan Subramanian, John E. Moon, Hemant Mane
  • Publication number: 20220293131
    Abstract: A data storage system include a disk drive having a rotating ramp assembly that may be moved between an engaged and disengaged position. The rotating ramp assembly may include a ramp extension that is not disposed in overlapping relation to a data storage disk location in the drive when in the disengaged position. However, in the engaged position, the ramp extension may overhang a portion of the data storage disk location. In turn, the head extension may include a ramp surface that allows a head assembly to move to a head parking surface when the rotating ramp assembly is in the engaged position. IN turn, the rotating ramp assembly may be rotated while maintaining the head assembly on the head parking surface, which may be arcuate and extend about at least a portion of the rotating ramp assembly.
    Type: Application
    Filed: March 9, 2021
    Publication date: September 15, 2022
    Inventors: Brett R. HERDENDORF, Riyan Alex MENDONSA, Krishnan SUBRAMANIAN
  • Patent number: 11443775
    Abstract: An issue facing shared read/write player hard disc drives (HDDs) is when a head-media contact event occurs, any resulting plume of debris caused by the contact event not only affects the magnetic disc currently being read or written, but other magnetic discs within the HDD enclosure. The presently disclosed technology is directed as mitigating the potential consequences of such a head-media contact event. By providing one or more internal access doors within the HDD, a magnetic disc currently being read from or written to may be physically isolated from other magnetic discs within the HDD. As a result, in the event of a head-media contact event, any resulting plume of debris caused by the contact event only affects the magnetic disc currently being read or written. The remaining magnetic discs within the HDD are isolated from the plume of debris.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: September 13, 2022
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Brett R. Herdendorf, Riyan Alex Mendonsa, Krishnan Subramanian
  • Publication number: 20220276354
    Abstract: An apparatus includes a detector, a light source configured to emit light, a reflecting apparatus having multiple reflective facets, and a mirror. The reflecting apparatus is configured to rotate around an axis and arranged to reflect the emitted light from the light source and reflect backscattered light. The mirror is arranged to reflect the backscattered light from the reflecting apparatus towards the detector.
    Type: Application
    Filed: May 18, 2022
    Publication date: September 1, 2022
    Inventors: Kevin A. Gomez, Zoran Jandric, Krishnan Subramanian, Pierre Asselin, Dan Mohr, Raghu Ambekar Ramachan Rao
  • Publication number: 20220238137
    Abstract: A data storage device includes a ramp configured to support at least one head in the data storage device, and a movement mechanism coupled to the ramp and configured to move the ramp from a first position to a second position by at least one of expansion or contraction of at least a portion of the movement mechanism. The data storage device further includes a ramp motion control module operably coupled to the movement mechanism. The ramp motion control module is configured to provide the movement mechanism with a first control signal that causes the movement mechanism to move the ramp from the first position to the second position. The data storage device additionally includes a latch configured to hold the ramp.
    Type: Application
    Filed: April 15, 2022
    Publication date: July 28, 2022
    Inventors: Brett R. Herdendorf, Riyan Alex Mendonsa, Krishnan Subramanian
  • Patent number: 11391822
    Abstract: An apparatus includes a detector, a light source configured to emit light, a reflecting apparatus having multiple reflective facets, and a mirror. The reflecting apparatus is configured to rotate around an axis and arranged to reflect the emitted light from the light source and reflect backscattered light. The mirror is arranged to reflect the backscattered light from the reflecting apparatus towards the detector.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: July 19, 2022
    Assignee: Seagate Technology LLC
    Inventors: Kevin A Gomez, Zoran Jandric, Krishnan Subramanian, Pierre Asselin, Dan Mohr, Raghu Ambekar Ramachandra Rao