341 results about "Tape head" patented technology

A fine lateral head positioner for a tape drive includes a frame mounted to a base of a tape transport. A tape head slides laterally along a head guide. A guide beam actuated by a fine position actuator applies limited transverse adjustments to the tape head relative to a tape transport path via a cam and cam-follower arrangement. A coarse positioner between the frame and the base provides coarse position adjustment of the tape head laterally among multiple sets of parallel tracks defined along a longitudinal direction of a magnetic tape moving along the tape transport path, and the guide beam provides fine position adjustment of the tape head enabling it to follow in real time a particular set of parallel tracks of the tape during each data writing or reading operation.

A robotic apparatus and method for treatment of system of conduits and lateral sub-conduits comprising a remotely controlled robotic vehicle which navigates main conduits which delivers a series of tools to locations within the conduit. The mule's tools comprise a variety of devices including a tape head and a transport housing for a second remotely controlled robotic vehicle, or mouse which can be deployed for traversing and treating sub-conduits. Further, a method to install one or more small diameter flexible elongate members, such as conductors or sheathes to the inside of the system of conduits comprises advancing an elongate member through the conduit system with the mule or mouse, anchoring the elongate member and then taping the elongate member with the taping head while retreating out of the conduit. Preferably the tape is pre-shaped to minimize wrinkling upon application and more preferably, greater security and tape bonding strength is achieved by spraying over the tape and elongate member.

A tape head designed for transducing data on a magnetic recording tape that is subject to tape dimensional changes. The tape head includes two or more arrays of transducer elements having different transducer spacing distances corresponding to different track spacing distances to be transduced. One of the transducer arrays may be used for transducing the tape under nominal tape track spacing conditions. Another transducer array may be used for transducing the tape when the tape track spacing is reduced due to the tape shrinkage. Still another transducer array may be used for transducing the tape when the tape track spacing is enlarged due to tape expansion.

A magnetic data storage system according to one embodiment includes a magnetic head; and guides on opposite sides of the magnetic head for directing a magnetic medium over the magnetic head. The magnetic head includes: outer portions each having a tape bearing surface and an array of transducers selected from a group consisting of readers and writers; and a central portion positioned between the outer portions, the central portion having a tape bearing surface and an array of transducers selected from a group consisting of readers and writers. An inner edge of each of the tape bearing surfaces of the outer portions is adapted for skiving air from the magnetic medium when the magnetic medium travels in a direction from the central portion towards the respective outer portion. The guides are oriented to direct the magnetic medium to fly over a leading one of the outer portions, engage a leading edge of the tape bearing surface of the central portion, and engage an inner edge of the tape bearing surface of a trailing one of the outer portions.

A magnetic head according to one embodiment includes a first module having a flat profile tape bearing surface, a second module having a flat profile tape bearing surface, and a third module having a flat profile tape bearing surface. The third module is positioned on an opposite side of the second module than the first module. The tape bearing surfaces of the first, second and third modules may lie along substantially parallel planes, may be configured in a tangent (angled) configuration, or may be configured in an overwrap configuration. Data writing and reading functions are usually performed by different modules at a given time.

According to one aspect, an exemplary method of manufacturing a magnetic head assembly with a predetermined wrap angle is described. The method includes removing a portion of a magnetic head support surface to create a slot transverse to a direction the media advances and at least partially separating a major support surface having an active device region and a thin support surface. The method further includes removing a portion of the thin support surface such that the height of at least a portion of the thin support surface is reduced relative to the major support surface. The height may be reduced to achieve a predetermined wrap angle between the media and the major support surface of the head assembly.

A self-aligned multi-channel tape head structure has a non-magnetic ceramic substrate defining an interior longitudinal channel and a plurality of head regions. At least one head leg at each region defines lateral openings to the interior longitudinal channel. Each head region has a thin-film metal magnetic core deposited on an inside wall surface of the ceramic substrate and a magnetic gap in a longitudinal face of the ceramic substrate. A coil of wire is wound around each head leg to provide a magnetic transducer head at each head region.

A tape head according to one embodiment includes an array of readers, each of the readers having a track width, wherein the track width of an inner reader of the array is greater than a track width of an outer reader relative thereto. A tape head according to another embodiment includes an array of readers, each of the readers having a track width, wherein the track width of at least some of the readers progressively decrease in a direction along the array from a middle of the array towards an end of the array.

A magnetic head assembly according to one embodiment of the present invention includes a substrate having a tape bearing surface. A plurality of elements are coupled to the substrate and positioned towards the tape bearing surface. The elements selected from a group consisting of readers, writers, and combinations thereof. A base is coupled to the substrate. The base has an outrigger formed integrally therewith. The outrigger causes a tape passing thereacross to approach the substrate at a first wrap angle relative to a plane of the tape bearing surface of the substrate.

Multi-disk processing system and method of continuous finishing of memory media disks for digital data storage systems in preparation for magnetic memory coating, comprising four main sub-systems: 1) multiple driven spindles mounted on a chassis, at 3, 6, 9 and 12 o'clock positions; 2) finishing tape head units mounted on a base; 3) a robotic handler for loading and unloading disks onto/off at least one of the spindles; and 4) a programmable system controller that controls the sub-system operations and loading/unloading. The tape head sub-system includes its own programmable controller and sensors for control of the finishing tape advance. The multiple spindles and handler rotate relative to each other. In a preferred embodiment, the spindles are mounted on a rotating turntable that also oscillates. Alternately, the spindles are fixed in position and a rotating handler with multiple grippers for simultaneously loading/unloading disks from all spindles at once is used.

A network interface cassette for coupling signals between a wireless network and a tape head in a cassette tape player. The network interface cassette includes an enclosure that is conformed to the cassette tape form factor. It contains a transceiver that converts base band signals for radio frequency communications within the wireless network. It also contains a network controller that is coupled to communicate the base band signals with the transceiver. The network controller converts digital audio signals to and from the base band signals. There is an audio processor that converts the digital audio signals to analog audio signals. A coupling means converts the analog audio signals to magnetic audio signals. The coupling means is aligned to couple the magnetic audio signals to the tape head. A power supply with batteries incorporates a spindle driven sensor means to control power and function selection within the device. A wireless user interface adapter is provided to couple microphone and audio signals to the apparatus. Plural communications requests are processed, and include a priority scheme to manage resource contention.

Reducing alignment errors between a read element and corresponding write elements permits narrower data tracks and, hence, greater data density on magnetic tape. A method for manufacturing a thin film tape head having multiple write elements and at least one read element corresponding to each write element is provided. Excess material is trimmed from each write element to align the write element with corresponding read elements. The excess material may be track trimmed using a focused ion beam.

The process for laying a non-full width course of fiber composite tape in a part is designed to ensure that all of the scrap portion of the tape surrounding the non-full width course is deposited in the scrap area and not in the part. An extra cut is made in tape downstream of the non-full width course, between the non-full width course and next course. After the tape head attempts to lay the scrap in the scrap area in the forward direction, the tape head makes a pass in the scrap area with the tape feed and the tape head moving in the reverse direction, and the scrap is laid beginning from the portion of the tape having the extra cut, and progressing to the non-full width course. The method may be used to remove scrap from around non-full width courses having any shape.

A recording head comprises a first tape-head contact area including a first write element and a first read element, which itself may include an MR sensor element. The first read element is laterally offset as to the first write element, and no portion of the first read element lies in a region laterally overlapped by the first write element. A second tape-head contact area includes a second write element and a second read element, which also may include an MR sensor element. The second read element is laterally offset as to the second write element, and no portion of the second read element lies in a region laterally overlapped by the second write element. The first read and write elements of the first tape-head contact area are aligned with the second write and read elements of the second tape-head contact area so that an end portion of the second write element lies in a region that laterally overlaps only an end portion of the first write element. Data track widths less than one micron are achievable with this head design.

A structure of head for the measuring tapes includes a moving part pivoted on a tape hook of the tape head, such that the moving part can overturn upwards and downwards on the tape hook and has the front portion thereof pivoting a wheel, wherein the wheel contacts with the object to measure or other contact areas as the tape is to be output and the output of the tape is facilitated through the rotation of the wheel.

Tape heads and controllers for controlling such heads in a tape drive are described. A controller may determine a first parameter corresponding to the similarity between data read by a first pair of read elements of a head, a second parameter corresponding to the similarity between data read by another pair of read elements having one read element in common with the first pair, and a position of the head with respect to a data track based upon a relationship between the first and second parameters. The controller may adjust the head to a proper lateral position based upon the determined position.

A method for forming a protective overcoat onto a tape bearing surface of a tape head used for magnetic tape recording. In order to ensure optimal surface tension and liftoff properties of the ink mask, the tape bearing surface is treated with a first application of ethanol, followed by an application of polydimethylsiloxane, followed by a second application of ethanol. After this treatment an ink mask can be printed onto the tape bearing surface so as to form a mask having an opening over the location of the magnetic transducer. An etching can then be performed followed by the deposition of a protective coating such as alumina.