G11B20/02

MULTIPLE-ACTUATOR HDD ASSEMBLY UTILIZING MULTIPLE-PREAMP ARCHITECTURE WITH SINGLE POINT TERMINATION
20240212713 · 2024-06-27 ·

Various illustrative aspects are directed to a data storage device comprising a plurality of disks and actuator assemblies, each actuator assembly comprising one or more preamplifiers and one or more heads actuated over one of the plurality of disks, wherein each of the one or more heads comprises a read element and a write element. The data storage device further comprises a System on Chip (SoC) comprising one or more processing devices, a first and a second transmission line path between the SoC and a first and a second actuator assembly, respectively, where the first and the second transmission line path intersect at a matched point compensation (MPC), and wherein the one or more processing devices are configured to transmit write data to, or receive read data from, at least one preamplifier of the plurality of actuator assemblies.

SYSTEMS AND METHODS FOR INFORMATION CAPTURE
20180277154 · 2018-09-27 ·

Disclosed herein are information capture systems and related methods. An information capture system includes a sensor secured to an object configured to be involved with a possible event. The sensor is configured to detect one or more stimuli that are associated with the possible event, and transmit a sensor signal indicating data corresponding to the one or more stimuli. The information capture system also includes a recording device configured to record information responsive to a triggering event determined from the sensor signal. A method includes analyzing sensor data from the sensor, determining, from the sensor data, that a triggering event occurred, and recording post-trigger information following the determination of the triggering event.

SYSTEMS AND METHODS FOR INFORMATION CAPTURE
20180277154 · 2018-09-27 ·

Disclosed herein are information capture systems and related methods. An information capture system includes a sensor secured to an object configured to be involved with a possible event. The sensor is configured to detect one or more stimuli that are associated with the possible event, and transmit a sensor signal indicating data corresponding to the one or more stimuli. The information capture system also includes a recording device configured to record information responsive to a triggering event determined from the sensor signal. A method includes analyzing sensor data from the sensor, determining, from the sensor data, that a triggering event occurred, and recording post-trigger information following the determination of the triggering event.

Multiple-actuator HDD assembly utilizing multiple-preamp architecture with single point termination

Various illustrative aspects are directed to a data storage device comprising a plurality of disks and actuator assemblies, each actuator assembly comprising one or more preamplifiers and one or more heads actuated over one of the plurality of disks, wherein each of the one or more heads comprises a read element and a write element. The data storage device further comprises a System on Chip (SoC) comprising one or more processing devices, a first and a second transmission line path between the SoC and a first and a second actuator assembly, respectively, where the first and the second transmission line path intersect at a matched point compensation (MPC), and wherein the one or more processing devices are configured to transmit write data to, or receive read data from, at least one preamplifier of the plurality of actuator assemblies.

Multiple-actuator HDD assembly utilizing multiple-preamp architecture with single point termination

Various illustrative aspects are directed to a data storage device comprising a plurality of disks and actuator assemblies, each actuator assembly comprising one or more preamplifiers and one or more heads actuated over one of the plurality of disks, wherein each of the one or more heads comprises a read element and a write element. The data storage device further comprises a System on Chip (SoC) comprising one or more processing devices, a first and a second transmission line path between the SoC and a first and a second actuator assembly, respectively, where the first and the second transmission line path intersect at a matched point compensation (MPC), and wherein the one or more processing devices are configured to transmit write data to, or receive read data from, at least one preamplifier of the plurality of actuator assemblies.

Techniques for clearly distinguishing between neighboring spirals in an SSW scheme
10074392 · 2018-09-11 · ·

During in-drive writing of a servo spiral on a disk surface, a servo spiral can be distinguished during demodulation from adjacent servo spirals on the same disk surface. When a set of servo spirals is written on a disk surface, a first spiral is written to include a first identifying characteristic and the following spiral is written to include a second identifying characteristic. The identifying characteristic may include embedded sync marks encoding a certain numerical value, a unique frequency of high-low transitions included in each spiral, and/or a unique frame size.

Systems and methods for information capture
10002635 · 2018-06-19 · ·

Disclosed herein are information capture systems and related methods. An information capture system includes a sensor secured to an object configured to be involved with a possible event. The sensor is configured to detect one or more stimuli that are associated with the possible event, and transmit a sensor signal indicating data corresponding to the one or more stimuli. The information capture system also includes a recording device configured to record information responsive to a triggering event determined from the sensor signal. A method includes analyzing sensor data from the sensor, determining, from the sensor data, that a triggering event occurred, and recording post-trigger information following the determination of the triggering event.

Systems and methods for information capture
10002635 · 2018-06-19 · ·

Disclosed herein are information capture systems and related methods. An information capture system includes a sensor secured to an object configured to be involved with a possible event. The sensor is configured to detect one or more stimuli that are associated with the possible event, and transmit a sensor signal indicating data corresponding to the one or more stimuli. The information capture system also includes a recording device configured to record information responsive to a triggering event determined from the sensor signal. A method includes analyzing sensor data from the sensor, determining, from the sensor data, that a triggering event occurred, and recording post-trigger information following the determination of the triggering event.

System and method for archive verification according to policies

Embodiments of systems and methods for archive verification are disclosed. More specifically, embodiments of this archive verification can comprise loading media into a drive and reading data from the media to verify that the media and data on the media can be read. In one embodiment, media can be loaded into a drive and read according to a verification policy. As part of verifying that media and data on media can be read, read errors or other verification data associated with media can be obtained. Using this verification data a result for the media may be determined.

System and method for archive verification according to policies

Embodiments of systems and methods for archive verification are disclosed. More specifically, embodiments of this archive verification can comprise loading media into a drive and reading data from the media to verify that the media and data on the media can be read. In one embodiment, media can be loaded into a drive and read according to a verification policy. As part of verifying that media and data on media can be read, read errors or other verification data associated with media can be obtained. Using this verification data a result for the media may be determined.