21results about "Cleaning recording heads" patented technology

The invention provides a magnetoelectric disk, a magnetoelectric memory and a data storage system. The magnetoelectric disc comprises a magnetic tape and a tape winding disc used for winding the magnetic tape, the magnetic tape comprises a data tape and non-data tapes arranged on the two sides of the data tape in the length direction of the data tape, and the non-data tape on at least one side of the data tape is provided with a magnetic head brush. When the magnetic head brush passes through the magnetic head, the magnetic head brush can be used for cleaning the magnetic head.

To provide a method for washing a conditioner head.SOLUTION: A pad conditioner head washing tool has: a first clamp which is configured so as to cause a first portion of a sponge to removably engage with an external surface of a disc-shaped pad conditioner head at a first position; a second clamp which is configured so as to cause a second portion of the sponge to removably engage with the external surface of the disc-shaped pad conditioner head at a second position; and an arm for coupling the first clamp to the second clamp. The arm has flexibility sufficient for separating the first clamp and the second clamp and fitting the same around the disc-shaped pad conditioner head, and has a tensile force sufficient for energizing the first clamp and the second clamp to an inner side and pressing the sponge against the external surface of the pad conditioner head.SELECTED DRAWING: Figure 2

Provided is a magnetic recording and reproducing apparatus capable of reducing transfer of contaminants to a magnetic head. The magnetic recording and reproducing apparatus according to the present invention includes: a magnetic recording medium in a disc shape; a motor that rotates the magnetic recording medium; a magnetic head that includes a magnetic head element that reads information from the magnetic recording medium and a magnetic head element that writes information to the magnetic recording medium; and a bias circuit that supplies a predetermined bias voltage to the magnetic head element that reads information from the magnetic recording medium, wherein the magnetic recording medium has, in order, a magnetic layer and a carbon protective layer on a substrate, and the bias circuit supplies a voltage of -0.2 V to -1.0 V relative to the potential of the magnetic recording medium to the magnetic head element.

Disclosed are a magnetic tape unit device, a storage system, a magnetic head cleaning method, a controller, and a magnetic tape, relating to the technical field of magnetic tapes. A magnetic tape integrates a data tape body for storing data and a cleaning tape body for cleaning a magnetic head together, and the cleaning tape body part on the magnetic tape is used to clean the magnetic head in the magnetic tape unit device, without manually pulling out and manually inserting the magnetic tape from and into the magnetic tape unit device, thereby reducing the time consumed for the magnetic tape to be inserted into and pulled out from the magnetic tape unit device, and shortening the cleaning duration of the magnetic head, thus reducing the interruption duration of a data access service caused by cleaning the magnetic head.

The main purpose of the present invention is to provide a high-recording-density magnetic recording medium capable of preventing an increase in frictional force even in a situation where the recording medium is driven many times. Furthermore, in addition to said prevention of an increase in frictional force, another purpose of the present technique is to maintain a polishing force when the recording medium is driven many times. The present technique provides a magnetic recording medium having a magnetic layer containing magnetic powder, wherein: the magnetic layer contains electrically conductive first particles and second particles having a Mohs hardness of 7 or higher; protrusions are formed on a magnetic layer-side surface by the first particles and the second particles; and protrusions formed by the second particles have an average height (H2) of 7 nm or less, contain an aliphatic acid, and have an aliphatic acid extraction ratio of 45% or higher as defined by the expression given below.　Aliphatic acid extraction ratio (%) = [amount of aliphatic acid extracted in five minutes (mg / m2) / total amount of extracted aliphatic acid (mg / m2)] x 100

To provide a data storage device (DSD) that reduces degradation of a slider caused by operation of an energy-assisted magnetic recording technique in the slider while maintaining a safe flying height of the slider.SOLUTION: The DSD100 comprises a magnetic disc 120 and a slider 110b including a write portion configured to magnetically write to the magnetic disc. A voltage is applied to the slider to provide a target offset voltage between the slider and the magnetic disk, wherein the applied voltage is different from a disk voltage of the magnetic disk. In one aspect, a first disk voltage for a magnetic disk is determined. The voltage to be applied to the slider is determined to adjust the potential difference between the slider and the disk to a non-zero target offset voltage.SELECTED DRAWING: Figure 1

A tape drive device includes a head member, a tape drive mechanism moving a tape, a suspension member supporting the head member, piezoelectric units, a drive voltage supply circuit applying a voltage to a piezoelectric element, and a controller. Each of the piezoelectric units includes a piezoelectric element. The controller determines a state of a head unit, based on a piezoelectric output generated at the piezoelectric element provided in the suspension member.

A padding adjustment head cleaning tool includes a first clamp configured to removably engage a first portion of a sponge against an outer surface of a disc-shaped padding adjustment head in a first position; a second clamp configured to removably engage a second portion of the sponge against an outer surface of the disc-shaped padding adjustment head in a second position; and an arm coupling the first clamp to the second clamp. The arm is sufficiently resilient to allow the first and second clamps to separate for engagement around the disc-shaped padding adjustment head, and sufficiently stretched to inwardly offset the first and second clamps to press the sponge against the outer surface of the padding adjustment head.

This provides a method for cleaning the conditioner head. [Solution] The pad conditioner head cleaning tool includes a first clamp configured to removably engage a first portion of a sponge with respect to the outer surface of a disc-shaped pad conditioner head at a first position, a second clamp configured to removably engage a second portion of the sponge with respect to the outer surface of a disc-shaped pad conditioner head at a second position, and an arm connecting the first clamp to the second clamp. The arm is flexible enough to separate the first and second clamps and fit them around the disc-shaped pad conditioner head, and has sufficient tension to bias the first and second clamps inward, pressing the sponge against the outer surface of the pad conditioner head.

The invention discloses magnetic tape unit equipment, a storage system, a magnetic head cleaning method, a controller and a magnetic tape, and relates to the technical field of magnetic tapes. According to the magnetic tape, the data tape body for storing data and the cleaning tape body for cleaning the magnetic head are integrated together, and the magnetic head in the magnetic tape unit equipment is cleaned by utilizing the cleaning tape body part on the magnetic tape, so that the magnetic tape does not need to be manually pulled out of and inserted into the magnetic tape unit equipment, and the time consumed for plugging the magnetic tape into and out of the magnetic tape unit equipment is reduced; the cleaning time of the magnetic head is shortened, so that the interruption time of the data access service caused by cleaning the magnetic head is reduced.

The invention discloses a method for optimizing steel wire recording digital audio quality, which comprises the following steps of: S1, measuring abrasion of a main shaft and a belt pulley of a steel wire recorder, and adjusting a tolerance to be within an original design range; s2, the magnetic head is cleaned through ultrasonic waves, and metal coating is conducted again; s3, controlling power supply voltage fluctuation by adding a voltage stabilizer; s4, analyzing the audio signal in combination with a spectrum analysis tool, separating distortion and noise components, and performing noise reduction processing by using a spectrum De-Noise technology and a dynamic threshold value; and S5, expanding a frequency range through a Spectral Recovery technology, and carrying out equalization compensation on the signal by using MusicRebalance. According to the method, mechanical structure optimization, magnetic head performance recovery, power system stability improvement and a digital audio processing technology are combined, so that the digital audio quality of steel wire recording is remarkably improved, the sound quality of recording is optimized, noise interference of equipment is reduced, and audio playback is clearer and more real.

A main object is to provide a magnetic recording medium having a high recording density to be capable of preventing an increase in frictional force even in a case where many times of traveling is performed. Furthermore, in addition to the prevention of an increase in frictional force, a further object of the present technology is maintenance of the polishing force at the time of many times of traveling.The present technology provides a magnetic recording medium including a magnetic layer containing a magnetic powder, the magnetic layer containing first particles having conductivity and second particles having a Mohs hardness of 7 or more, the first particles and the second particles forming protrusions on a surface on a side of the magnetic layer, the second particles forming protrusions having an average height (H2) of 7 nm or less on the surface on the side of the magnetic layer, the magnetic recording medium containing a fatty acid, the magnetic recording medium having an extraction rate of the fatty acid of 45% or more, the extraction rate defined by a formula described below.Extraction rate of fatty acid (%)=[amount of fatty acid extracted in 5 minutes (mg / m2) / total amount of fatty acid extracted (mg / m2)]×100

In one general embodiment, an apparatus includes a magnetic head, and a controller coupled to the magnetic head, the controller being configured to perform a method that includes measuring humidity in a vicinity of the apparatus in response to detection of an error while performing a data operation on a magnetic recording tape. An error recovery procedure to remove debris on the tape is executed in response to detection of an error and the measured humidity exceeding a predefined upper limit value. An error recovery procedure to remove debris adhering to the magnetic head is executed in response to detection of an error and the measured humidity being below a predefined lower limit value.

According to one embodiment, a method of adjusting a heat assisted magnetic recording and reproducing device maintains a heat assisted magnetic recording head of the heat assisted magnetic recording and reproducing device in an on-track state, maintains a recording current for data recording below a threshold value, and applies a light source drive current emitting light to a light source.

A magnetic recording medium having a high recording density to be capable of preventing an increase in frictional force even in a case where many times of traveling is performed. A magnetic recording medium includes a magnetic layer containing a magnetic powder, the magnetic layer containing first particles having conductivity and second particles having a Mohs hardness of 7 or more, the first and second particles forming protrusions on a surface on a side of the magnetic layer, the second particles forming protrusions having an average height (H2) of 7 nm or less on the surface on the side of the magnetic layer, the magnetic recording medium containing a fatty acid and fatty acid ester, with an extraction rate of the fatty acid of 45% or more, and an extraction rate of the fatty acid ester of 60% or more.

The objective is to provide a magnetic recording device that can prevent problems caused by buildup products and improve recording density. [Solution] According to the embodiment, the magnetic recording device comprises a disk-shaped recording medium having a recording surface coated with a lubricant, a magnetic head including a recording element, a light source, and a light-emitting element that irradiates light onto the recording surface of the recording medium, a light source control circuit that controls the drive current value of the light source, a cleaning execution circuit that performs a cleaning operation to remove buildup products adhering to the magnetic head, and a controller including a setting circuit that sets the cleaning interval for performing the cleaning operation.

A tape drive device includes a head member, a tape drive mechanism moving a tape, a suspension member supporting the head member, piezoelectric units, a drive voltage supply circuit applying a voltage to a piezoelectric element, and a controller. Each of the piezoelectric units includes a piezoelectric element. The controller determines a state of a head unit, based on a piezoelectric output generated at the piezoelectric element provided in the suspension member.

A data storage device (DSD) is provided that reduces slider degradation caused by the operation of energy-assisted magnetic recording technology on the slider while maintaining a safe flying height of the slider. The DSD (100) includes a magnetic disk (120) and a slider (110b) including a writer configured to magnetically write data to the magnetic disk. A voltage is applied to the slider to provide a target offset voltage between the slider and the magnetic disk, the applied voltage being different from a disk voltage of the magnetic disk. In one aspect, a first disk voltage for the magnetic disk is determined. The voltage to be applied to the slider is determined to adjust the potential difference between the slider and the disk to the non-zero target offset voltage.

According to one embodiment, a magnetic recording device includes a disk-shaped recording medium including a recording surface on which a lubricant is applied, a magnetic head including a recording element, a light source, and a light emitting element which irradiates light onto the recording surface of the recording medium, and a controller including a light source control circuit which controls a drive current value of the light source, a cleaning execution circuit which executes a cleaning operation to remove a build-up product attached to the magnetic head, and a setting circuit which sets a cleaning interval at which the cleaning operation is executed.

Embodiments of the present invention relate to a magnetic recording apparatus. According to one embodiment, the magnetic recording apparatus includes: a disc-shaped recording medium having a recording surface coated with a lubricant; a magnetic head including a recording element, a light source, and a light-emitting element that illuminates the recording surface of the recording medium; and a controller including a light source control circuit that controls the driving current value of the light source, a cleaning execution circuit that performs a cleaning action to remove deposits adhering to the magnetic head, and a setting circuit that sets a cleaning interval for performing the cleaning action.