G11B5/4893

Media non-contacting magnetic recording head

The present disclosure generally relates to a head assembly of a data storage device. The data storage device may include magnetic media embedded in the device or magnetic media from an insertable cassette or cartridge (e.g., in an LTO drive), where the magnetic head assembly reads from and writes to the magnetic media. During drive operation, the magnetic media moves across the magnetic head assembly. The magnetic head assembly is spaced a distance from the magnetic media such that non-contact recording occurs between the magnetic head assembly and the magnetic media. The magnetic media is supported by either a back plate or an air film generated by one or more fillet edges of the back plate and the velocity of the magnetic media as the magnetic media moves across the magnetic head assembly.

Record head actuator sandwiched damper plus travel limiter

A magnetic recording head positioning assembly includes a coarse travel carriage secured to and spaced away from each of a front end assembly and head assembly via sandwiched fine guiding flexures and isolation flexures. The fine guiding flexures permit relative movement between the coarse travel carriage and head assembly. The isolation flexures permit relative movement between the coarse travel carriage and front end assembly. The fine guiding and isolation flexures thus isolate the coarse travel carriage from the front end assembly and head assembly. The assembly further includes dampers sandwiched between the coarse travel carriage and isolation flexures to limit movement of the isolation flexures.

TOTAL DIMENSIONAL STABILITY COMPENSATION SYSTEM AND METHOD FOR MAGNETIC TAPE DRIVE
20220310118 · 2022-09-29 ·

A tape drive includes a first tape head, a first actuator assembly, a second tape head, a second actuator assembly, and a controller. The first tape head includes two first servo elements that each read one of two servo tracks, and a first read/write element that one of reads data from and writes data to a first data track. The first tape head is positionable at a first base head rotation angle. The first actuator assembly selectively rotates the first tape head from the first base head rotation angle to a first adjusted head rotation angle. The second tape head includes two second servo elements that each read one of the two servo tracks, and a second read/write element that one of reads data from and writes data to the first data track. The second tape head is positionable at a second base head rotation angle. The second actuator assembly selectively rotates the second tape head from the second base head rotation angle to a second adjusted head rotation angle. The controller independently controls the selective rotation of the first tape head and the second tape head based solely on servo information.

Quasi-statically oriented, bi-directional tape recording head

A computer program product for orienting a head, according to one embodiment, includes a computer readable storage medium having program instructions embodied therewith that are readable/executable by a controller to cause the controller to determine a desired pitch for transducers of a magnetic head for reading and/or writing to a magnetic tape, and are readable/executable by the controller to cause the controller to cause a mechanism to orient the magnetic head towards first and second positions to achieve the desired pitch when the tape travels in first and second directions, respectively. Outer data transducers of the third array are about aligned with outer data transducers of the second array when the magnetic head is positioned towards the first position, and the outer data transducers of the third array are about aligned with outer data transducers of the first array when the magnetic head is positioned towards the second position.

Soft Mount Voice Coil Motor Assembly
20210407536 · 2021-12-30 ·

The present disclosure generally relates to a voice coil motor (VCM) yoke assembly mounted to an actuator block for a data storage device. One or more fastening mechanisms couple the VCM assembly to the actuator block. The fastening mechanisms are coupled to the VCM assembly by one or more soft mounts. The one or more soft mounts reduce undesirable movement of the magnetic recording head by spacing the VCM assembly from the actuator block, yet still ensuring the VCM assembly is properly coupled to the actuator block.

SIGNAL PROCESSING DEVICE, MAGNETIC TAPE CARTRIDGE, MAGNETIC TAPE READING APPARATUS, PROCESSING METHOD OF SIGNAL PROCESSING DEVICE, OPERATION METHOD OF MAGNETIC TAPE READING APPARATUS, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

A signal processing device includes a receiver that receives a plurality of playback signal sequence obtained by digitizing a plurality of reading results by a plurality of A/D converter, the plurality of reading results being obtained by reading data by a plurality of reading elements from a magnetic tape and a plurality of equalizers that perform waveform equalization of the plurality of playback signal sequence. The plurality of equalizers perform the waveform equalization by using a plurality of non-linear filters that have been learned to reduce distortion that occurs non-linearly in the plurality of playback signal sequence according to a condition under an environment in which the data is read from the magnetic tape. The plurality of non-linear filters being optimized to a suitable characteristic for the plurality of reading elements by optimization based on the plurality of reading results.

Head Positioning Assembly For Tape Embedded Drive
20210398558 · 2021-12-23 ·

The present disclosure generally relates to a head positioning assembly in a tape embedded drive. The tape embedded drive has two reels as well as four guide rollers. The reels and guide rollers are arranged within the tape embedded drive so as to position the head positioning assembly as close to the center of the tape embedded drive as possible. In so doing, the reels, guide rollers, and head assembly are more stable which reduces or even eliminates shock and vibration to the tape embedded drive.

BASE APPARATUS AND METHODS FOR HEAD ASSEMBLIES OF MAGNETIC STORAGE DEVICES
20210375310 · 2021-12-02 ·

Aspects of the present disclosure generally relate to a base and related methods for write and read heads. In one example, the base and related methods are used as part of a magnetic storage device, for example a magnetic media drive such as a hard disk drive (HDD) or a magnetic tape drive (e.g., a tape embedded drive). The base includes one or more base bodies formed of a ceramic material. Each base body includes an inward surface, an outward surface opposing the inward surface, a lower surface, and an angled upper surface disposed above the lower surface. Each base body includes a vertical opening extending between the upper surface and the lower surface. In one example, two base bodies are bonded together. In one example, the two base bodies combine to form a single base body of the base that is monolithic and unitary.

ACTIVE SPACING CONTROL FOR CONTACTLESS TAPE RECORDING
20220208228 · 2022-06-30 ·

The present invention relates to the field of tape drives, tape transport, tape heads and tape head suspension. More particularly, the present invention is related to magnetic tape data storage and tape recorders that include components designed to minimize or eliminate head-to-tape contact to reduce or eliminate wear and contamination of tape drive heads. Methods and apparatus of the present invention may dynamically control the head-to-media spacing by moving locations of magnetic heads relative to a tape. Such apparatus may include components designed to minimize magnetic spacing. This may be accomplished using actuators that move the magnetic heads, that move the tape, or that move both the magnetic heads and the tape. This may include supporting a back surface of the tape. Alternatively, or additionally, the movement of the tape past the magnetic heads may be performed using mechanisms that contact and drive the back surface of the tape.

Total dimensional stability compensation system and method for magnetic tape drive
11367459 · 2022-06-21 · ·

A tape drive for use with a magnetic tape including two spaced apart servo tracks and a first data track includes a tape head, an actuator assembly, and a controller. The tape head includes two spaced apart servo elements that are each configured to read one of the two servo tracks, and a first read/write element that is configured to one of read data from and write data to the first data track. The tape head is positionable at a base head rotation angle relative to transverse to the length of the magnetic tape. The actuator assembly is configured to selectively rotate the tape head relative to the magnetic tape. The controller controls the actuator assembly to selectively rotate the tape head relative to the magnetic tape from the base head rotation angle to an adjusted head rotation angle that is different than the base head rotation angle based solely on servo information from the two servo elements reading the two servo tracks.