Marvell Assigned Eleven Patents

Shared mid-level data cache
Marvell Asia Pte, Ltd., Singapore, Singapore, has been assigned a patent (11513958) developed by Mukherjee, Shubhendu Sekhar, Southborough, MA, for a “shared mid-level data cache.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Managing a cache includes parsing a physical address of a data block to determine a partition identifier (ID) and a tag, the partition ID compared against a partition table storing partition IDs. The partition table indicates at least one way partition and at least one set partition corresponding to the partition ID. Based on the partition table, a way partition is determined at which to store the data block, corresponding to a subset of columns of a cache and, based on the partition table and the tag, a set partition is determined at which to store the data block, corresponding to a subset of rows of the cache. A cache address is generated for the data block within a first region of the cache corresponding to an intersection of the way partition and the set partition. The data block is stored to the cache according to the cache address.”

The patent application was filed on 2020-10-27 (17/081140).

Throughput management of distributed storage
Marvell Asia Pte, Ltd., Singapore, Singapore, has been assigned a patent (11481156) developed by Au, Siu-Hung, Kalluri, Madhusudan, Fremont, CA, Wu, Yun-Ho, and Ding, Wenxiang, Milpitas, CA, for a “throughput management of distributed storage system.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Methods and systems for managing access to a distributed storage systems include storing a total bandwidth utilization amount allocated to each of a plurality of client devices and a current bandwidth amount utilized by each of the plurality of client devices. An actual bandwidth amount utilized for servicing one or more requests received from a plurality of client devices over a network is monitored and an expected bandwidth utilization amount for servicing a request to access a distributed storage system having a plurality of storage devices interconnected over a network, received from respective ones of the plurality of client devices is determined. The client device transmitting the request is either permitted or denied access to the distributed storage system based on a function of the expected bandwidth utilization of the request relative to the total bandwidth utilization amount allocated to the requesting client device.”

The patent application was filed on 2021-02-26 (17/187325).

Storage media programming with adaptive write buffer release
Marvell Asia Pte, Ltd., Singapore, Singapore, has been assigned a patent (11481118) developed by Klein, Steven A., Costa Mesa, CA, Nguyen, Viet-Dzung, and Burd, Gregory, San Jose, CA, for a “storage media programming with adaptive write buffer release.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The present disclosure describes apparatuses and methods for storage media programming with adaptive write buffer release. In some aspects, a media write manager of a storage media system stores, to a write buffer, data received from a host interface. The media write manager determines parity information for the data stored to the write buffer and then releases the write buffer on completion of determining the parity information for the data. The media write manager may then write at least a portion of the data to storage media after the write buffer is released. By releasing the write buffer of the storage media system after determining the parity information, the write buffer is freed more quickly, which may result in improved write buffer utilization and increased write throughput of the storage media system.”

The patent application was filed on 2020-01-08 (16/737137).

AI-enabled management of storage media access
Marvell Asia Pte, Ltd., Singapore, Singapore, has been assigned a patent (11467991) developed by Therene, Christophe, Livermore, CA, Varnica, Nedeljko, San Jose, CA, and Nguyen, Phong Sy, Livermore, CA, for a “artificial intelligence-enabled management of storage media access.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The present disclosure describes apparatuses and methods for artificial intelligence-enabled management of storage media. In some aspects, a media access manager of a storage media system receives, from a host system, host input/output commands (I/Os) for access to storage media of the storage media system. The media access manager provides information describing the host I/Os to an artificial intelligence engine and receives, from the artificial intelligence engine, a prediction of host system behavior with respect to subsequent access of the storage media. The media access manager then schedules, based on the prediction of host system behavior, the host I/Os for access to the storage media of the storage system. By so doing, the host I/Os may be scheduled to optimize host system access of the storage media, such as to avoid conflict with internal I/Os of the storage system or preempt various thresholds based on upcoming idle time.”

The patent application was filed on 2021-05-13 (17/320096).

Health management for magnetic storage media
Marvell Asia Pte, Ltd., Singapore, Singapore, has been assigned a patent (11450348) developed by Nangare, Nitin, Sunnyvale, CA, for a “health management for magnetic storage media.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The present disclosure describes aspects of health management for magnetic storage media. In some aspects, a media health manager determines, with a read channel, read metrics for a sector of magnetic storage media that resides in a zone of magnetic storage media. The media health manager accesses read metrics of the zone and updates the read metrics of the zone based on the read metrics determined for the sector to provide updated read metrics for the zone of magnetic storage media. A health score for the zone of magnetic storage media is then determined with a neural network based on the updated read metrics of the zone of magnetic storage media. By so doing, gradual wear of the magnetic storage media may be predicted using the health score, enabling replacement of a magnetic storage media device before failure to improve reliability or availability of data stored to the device.”

The patent application was filed on 2020-01-08 (16/737174).

Dual-surface self-servo-write for storage device
Marvell Asia Pte, Ltd., Singapore, Singapore, has been assigned a patent (11430481) developed by Katchmart, Supaket, San Jose, CA, for a “dual-surface self-servo-write for storage device.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A self-servo-write (SSW) method in a storage device includes detecting, with a first read head, SSW spiral signals from a first track on a first storage medium surface, processing the SSW spiral signals from the first track using a first read channel, to generate first control signals for positioning the first read head relative to the first track, detecting, with a second read head, SSW spiral signals from a second track on a second storage medium surface, processing the SSW spiral signals from the second track using a second read channel, to generate second control signals for positioning the second read head relative to the second track, positioning a first write head relative to the first track using the first control signals via a single write channel, and positioning a second write head relative to the second track using the second control signals via the single write channel.”

The patent application was filed on 2021-09-09 (17/447209).

Write timing for RRO field in constant density servo
Marvell Asia Pte, Ltd., Singapore, Singapore, has been assigned a patent (11417361) developed by Katchmart, Supaket, San Jose, CA, for a “write timing for rro field in a constant density servo system.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method for writing repeatable run-out data, representing a recurring contribution to position error, to a rotating constant-density magnetic storage medium, includes repeating, for each respective track at a respective radius of the constant-density magnetic storage medium, (1) determining a respective track pattern frequency based on track location and desired data density, (2) locating a position in a respective servo wedge on the respective track based on servo sync mark detection, (3) writing the repeatable run-out data to the respective servo wedge at a time delay, from the location of the position in the respective servo wedge, that is inversely proportional to the respective radius, to achieve a predetermined offset, and (4) repeating the determining, the locating and the writing for each servo wedge on the respective track of the constant-density magnetic storage medium.”

The patent application was filed on 2021-08-17 (17/445213).

Key management for remote device access
Marvell Asia Pte, Ltd., Singapore, Singapore, has been assigned a patent (11398904) developed by Katz, Adi, Ramat Gan, Israel, and Torok, Ruven, Cholon, Israel, for a “key management for remote device access.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method for allocating to a resource, in a system of addressable resources, a hybrid deterministic/random key for access to a second resource, includes maintaining a table of storage positions for key values, searching the table for an available storage position, determining an index, in the table, of the available storage position, generating a random key value associated with location of the second resource, storing the random key value in the storage position, and assembling the index and the random key value into the hybrid key. The index may be most significant bits of the hybrid key, with the random key value being the least significant bits. Alternatively, the index may be least significant bits of the hybrid key, with the random key value being the most significant bits, or the bits of the index may be distributed among bits of the random key value.”

The patent application was filed on 2020-05-21 (15/929778).

Enabling virtual functions on storage media
Marvell Asia Pte, Ltd., Singapore, Singapore, has been assigned a patent (11372580) developed by Guo, Liping, Palo Alto, CA, Li, Yingdong, San Francisco, CA, Furey, Scott, Cupertino, CA, and Suri, Salil, Fremont, CA, for an “enabling virtual functions on storage media.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The present disclosure describes apparatuses and methods for automatically mapping virtual functions to storage media to enable single root input output virtualization. A storage media switch manages access to virtual functions that execute behind a storage media interface managed by the switch. The switch includes a host interface through which the switch receives host commands. The switch determines virtual function identifiers associated with the host commands and automatically selects the virtual functions of the storage media based on the virtual function identifiers. The switch executes the host commands over the storage media interface using the virtual functions, and after execution, responds via the host interface to each of the host commands. By automatically mapping virtual functions in this way, the switch automatically enables single root input output virtualization of storage media, including storage media that is without native support for input output virtualization.”

The patent application was filed on 2019-08-06 (16/533376).

Controlling performance of solid drive
Marvell Asia Pte, Ltd., Singapore, Singapore, has been assigned a patent (11366753) developed by Keung, Ka-Ming, and Nguyen, Dung Viet, San Jose, CA, for “controlling performance of a solid drive.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A storage access request to access a solid 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.”

The patent application was filed on 2019-07-29 (16/525105).

Solid-drive with initiator mode
Marvell Asia Pte, Ltd., Singapore, Singapore, has been assigned a patent (11366610) developed by Mizrahi, Noam, Modi’n, Israel, for a “solid-drive with initiator mode.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A solid- drive configured to store persistent digitally encoded data may operate in an initiator mode. When operating in the initiator mode, the solid- drive may initiate the generation and issuance of a command or a request for another solid- drive to carry out a data storage related procedure. The command or request generated by the solid- drive may be communicated directly to another solid- drive without the communications passing through an intermediate device, such as a host processor.”

The patent application was filed on 2019-12-17 (16/717408).