公开(公告)号：US20230370080A1

公开(公告)日：2023-11-16

申请号：US17745756

申请日：2022-05-16

Applicant: Retym, Inc.

Inventor： Roee EITAN ,  Yaakov DAYAN ,  Yosi SANHEDRAI ,  Aviv BERG ,  Esther T. FRIDMAN ,  Kirill BLUM

IPC: G11B19/28

CPC classification number: G11B19/28 ,  H02P23/186

Abstract: A comparator circuit with a speed control element is disclosed herein. The speed control element may include a variable voltage source and one or more transistors. Using a voltage supplied by the variable voltage source, the one or more transistors may control a swing of a clock signal to provide a swing controlled clock signal to an amplification portion of the comparator circuit. The swing controlled clock therefor may be used to control the speed of the comparator circuit (e.g., an amplification phase) based on a level of noise in the circuit. The swing controlled clock may further be used to align an output common voltage of the comparator circuit with switching voltages of downstream logic cells (e.g., inverters) connected to the comparator circuit.

公开(公告)号：US11776573B2

公开(公告)日：2023-10-03

申请号：US17197158

申请日：2021-03-10

Applicant: Kabushiki Kaisha Toshiba ,  Toshiba Electronic Devices & Storage Corporation

Inventor： Yu Chen ,  Kenichiro Ozeki ,  Koichiro Miyamoto

IPC: G11B19/20 ,  G11B19/28

CPC classification number: G11B19/2054 ,  G11B19/28

Abstract: According to an embodiment, a magnetic disk device includes a magnetic disk, a spindle motor that rotates the magnetic disk, a motor driver, and a controller. The motor driver supplies a motor current to the spindle motor and measures a counter electromotive voltage of the spindle motor every time the spindle motor makes one rotation. After the rotation of the magnetic disk starts, the controller adjusts a motor position where the counter electromotive voltage is measured to a set first position.

公开(公告)号：US10073625B2

公开(公告)日：2018-09-11

申请号：US14989560

申请日：2016-01-06

Applicant: HGST Netherlands B.V.

Inventor： Cyril Guyot ,  Mohammed Ghiath Khatib ,  Adam C. Manzanares ,  Lluis Pamies-Juarez

IPC: G06F1/32 ,  G06F3/06 ,  G11B19/26

CPC classification number: G06F3/0608 ,  G06F1/3203 ,  G06F3/0653 ,  G06F3/0689 ,  G06F11/00 ,  G11B19/2072 ,  G11B19/26 ,  G11B19/28

Abstract: The present disclosure relates to a system and methods of controlling a system of storage devices. In particular, the present disclosure relates to methods of controlling peak power and energy consumption in storage systems due to storage devices while maintaining data availability. The system implements a method for maintaining data availability in a storage subsystem by determining a plurality of storage devices to include in a fixed set of storage devices based on a fault tolerance system. The storage devices included in the fixed set are prevented from transitioning between RPM spin modes. The method further involves controlling peak power and energy consumed by the storage subsystem which may include transitioning the storage devices not included in the fixed set from a high RPM operational mode to a low RPM operational mode to reduce peak power and energy consumption.

公开(公告)号：US09983992B2

公开(公告)日：2018-05-29

申请号：US13873787

申请日：2013-04-30

Applicant: WMware Inc.

Inventor： Deng Liu ,  Thomas A. Phelan

IPC: G06F12/02 ,  G06F3/06 ,  G06F9/455

CPC classification number: G06F12/0246 ,  G06F3/0604 ,  G06F3/064 ,  G06F3/0652 ,  G06F3/0664 ,  G06F3/0679 ,  G06F3/0688 ,  G06F9/45558 ,  G06F12/10 ,  G06F13/1668 ,  G06F2009/45579 ,  G06F2212/1044 ,  G06F2212/151 ,  G06F2212/214 ,  G06F2212/657 ,  G06F2212/7205 ,  G06F2213/0032 ,  G06F2213/0036 ,  G11B19/28

Abstract: A computer system that employs a solid-state memory device as a physical storage resource includes a hypervisor that is capable of supporting TRIM commands issued by virtual machines running in the computer system. When a virtual machine issues a TRIM command to its corresponding virtual storage device to invalidate data stored therein, the TRIM command is received at an interface layer in the hypervisor that translates the TRIM command to a SCSI command known as UMMAP. A SCSI virtualization layer converts the UNMAP command to a file system command to delete portions of the virtual storage device that is maintained as a file in the hypervisor's file system. Upon receiving the delete commands, the hypervisor's file system driver generates a TRIM command to invalidate the data stored in the solid-state memory device at locations corresponding to the portions of the file that are to be deleted.

公开(公告)号：US20180047421A1

公开(公告)日：2018-02-15

申请号：US15790273

申请日：2017-10-23

Applicant: Seagate Technology LLC

Inventor： Koji Adachi ,  Ian J. Beresford ,  Thomas Y. Chang ,  Kuo Hsing Hwang ,  James Hennessy ,  David Perez

IPC: G11B5/82 ,  G11B33/02 ,  G11B5/55 ,  G11B5/39 ,  G11B19/20 ,  G11B5/73 ,  G11B19/28 ,  G11B20/12

CPC classification number: G11B5/82 ,  G11B5/39 ,  G11B5/4813 ,  G11B5/5526 ,  G11B5/7315 ,  G11B19/2009 ,  G11B19/28 ,  G11B20/1217 ,  G11B33/02 ,  G11B33/027 ,  G11B2020/1238

Abstract: Apparatus and method for magnetic recording media. A rotatable magnetic recording disc has an outermost annular sidewall that extends at nominally 97 millimeters, mm for a 3½ inch form factor data storage device or at nominally 67 mm for a 2½ inch form factor data storage device. The rotatable magnetic recording disc further has a disc shaped substrate of metal or glass, and a magnetic recording layer supported by the disc shaped substrate and configured to magnetically record data along concentric tracks.

公开(公告)号：US09761250B1

公开(公告)日：2017-09-12

申请号：US15453050

申请日：2017-03-08

Applicant: YA HORNG ELECTRONIC CO., LTD.

Inventor： Jin-Yi Huang

IPC: G11B17/04 ,  G11B3/00 ,  H04N5/225 ,  G06T7/246 ,  G11B19/26

CPC classification number: G11B19/26 ,  G11B3/60 ,  G11B19/247 ,  G11B19/28 ,  H04N5/2256 ,  H04N5/2257

Abstract: A record player includes a base, a platter, a tonearm assembly and a monitoring unit. The monitoring unit is secured on the base, and includes a light emitter, an image capturing module and a processing module. The light emitter can emit light toward the platter or an acoustical record disposed on the platter. The image capturing module can receive the light reflected by the platter or the acoustical record, and capture images of the platter or the acoustical record. The processing module can receive the images from the image capturing module, and determine a current rotating speed of the platter or the acoustical record by analyzing and comparing the images captured by the image capturing module at successive time points.

公开(公告)号：US20170084305A1

公开(公告)日：2017-03-23

申请号：US15264988

申请日：2016-09-14

Applicant: SHOWA DENKO K.K.

Inventor： Eishin YAMAKAWA ,  Katsuaki TO ,  Saeko HAYASE

IPC: G11B19/28 ,  G11B5/73 ,  G11B21/10

CPC classification number: G11B19/28 ,  G11B5/72 ,  G11B5/725 ,  G11B21/106

Abstract: In a magnetic recording medium of the present invention, an outermost surface of a protective layer 3 on a lubricant layer 4 side contains carbon and nitrogen in a range of 50 atomic % to 90 atomic %, and the lubricant layer 4 is formed by being in contact with the outermost surface, contains compounds A to C represented in the below general formulas (1) to (3) described below, and has a film thickness of 0.5 nm to 2 nm. R1-C6H4OCH2CH(OH)CH2OCH2—R2-CH2OCH2CH(OH)CH2OH   (1), CH2(OH)CH(OH)CH2OCH2CF2CF2(OCF2CF2CF2)mOCF2CF2CH2OCH2CH(OH)CH2OH   (2), HOCH2CF2CF2O(CF2CF2CF2O)sCF2CF2CH2OCH2CH(OH)CH2OH   (3)

公开(公告)号：US09508374B2

公开(公告)日：2016-11-29

申请号：US15174177

申请日：2016-06-06

Applicant: Seagate Technology LLC

Inventor： Koji Adachi ,  Ian J. Beresford ,  Thomas Y. Chang ,  Kuo Hsing Hwang ,  James Hennessy ,  David Perez

IPC: G11B5/82 ,  G11B20/12

CPC classification number: G11B5/82 ,  G11B5/39 ,  G11B5/4813 ,  G11B5/5526 ,  G11B5/7315 ,  G11B19/2009 ,  G11B19/28 ,  G11B20/1217 ,  G11B33/02 ,  G11B33/027 ,  G11B2020/1238

Abstract: A hard disc drive (HDD) with an enlarged magnetic recording disc. In some embodiments, a base deck and top cover are arranged to provide an HDD housing with a 2½ inch form factor or a 3½ inch form factor. A magnetic recording disc is supported for rotation within the housing. A data transducer is controllably advanced across a recording surface of the magnetic recording disc to write data to the recording surface, and a printed circuit board assembly (PCBA) affixed to an external surface of the base deck incorporates control electronics to provide write signals to the data transducer during the writing of data to the recording surface. The disc has an outer diameter of at least 67 millimeters, mm for the 2½ inch form factor housing and has an outer diameter of at least 97 mm for the 3½ inch form factor housing.

Abstract translation: 具有放大磁记录盘的硬盘驱动器（HDD）。 在一些实施例中，基座甲板和顶盖布置成提供具有2 1/2英寸外形尺寸或3½英寸外形尺寸的HDD外壳。 磁记录盘被支撑以在壳体内旋转。 数据传感器可控地前进在磁记录盘的记录表面上以将数据写入记录表面，并且固定到基座的外表面的印刷电路板组件（PCBA）包含控制电子装置，以向 在将数据写入记录表面期间的数据传感器。 该盘具有至少67毫米的外径，对于2½英寸外形尺寸外壳而言为mm，对于3½英寸外形尺寸外壳，其外径至少为97毫米。

公开(公告)号：US20160224011A1

公开(公告)日：2016-08-04

申请号：US14917447

申请日：2014-09-05

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： James Edward Dykes

IPC: G05B19/406 ,  G05D23/13

CPC classification number: G05B19/406 ,  G05B2219/37431 ,  G05D23/1393 ,  G06F1/20 ,  G06F1/203 ,  G06F1/206 ,  G06F1/3268 ,  G11B5/40 ,  G11B19/28 ,  Y02D10/16

Abstract: A mobile data storage device (102) may be housed in a mobile computing device (142) without an active cooling feature. The mobile data storage device (102) can have at least a controller (122) configured to delay command execution in response to a predicted mobile data storage device (102) temperature. The controller (122) can insert a plurality of delays into a command queue to prevent the mobile data storage device (102) from reaching the predicted mobile data storage device (102) temperature.

Abstract translation: 移动数据存储设备（102）可以被容纳在移动计算设备（142）中，而没有主动冷却特征。 移动数据存储设备（102）可以具有至少一个配置成响应于预测的移动数据存储设备（102）温度来延迟命令执行的控制器（122）。 控制器（122）可以将多个延迟插入到命令队列中，以防止移动数据存储设备（102）到达预测的移动数据存储设备（102）的温度。

公开(公告)号：US09218844B2

公开(公告)日：2015-12-22

申请号：US14320895

申请日：2014-07-01

Applicant: Native Instruments GmbH

Inventor： Mark-Jan Bastian

IPC: G10H7/00 ,  G11B19/28 ,  G10H1/00 ,  G10H3/03 ,  G11B19/02 ,  G11B20/10 ,  G11B27/00 ,  G11B27/30

CPC classification number: G11B19/28 ,  G10H1/0091 ,  G10H3/03 ,  G10H2210/241 ,  G10H2250/631 ,  G11B19/02 ,  G11B20/10527 ,  G11B27/005 ,  G11B27/3036 ,  G11B2220/2545 ,  G11B2220/2562

Abstract: An apparatus for signal processing, wherein a disc is placed on a turntable and is provided with a groove which can be followed by the pick-up element, and employing a time-code signal wherein during use of the disc the said time-code signal controls the digital audio source.

Abstract translation: 一种用于信号处理的装置，其中盘被放置在转台上并且设置有可以由拾取元件跟随的凹槽，并且采用时间码信号，其中在使用盘期间，所述时间码信号 控制数字音频源。