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IBM Assigned Twelve Patents

Controlling data writing of tape drive, detecting servo pattern using data channel in tape drive, protecting sensitive device from corrosion, tape head assembly for LTO, writing multiple files simultaneously to tape, tape dimension compensation, coarse actuator positioning algorithm, low friction tape head, miniskirt tape head having quasi-statically tilted transducer arrays, abrasion test, tape drive buffer utilization, primary storage media with associated secondary storage media for efficient data management

Controlling data writing of tape recording apparatus
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,324,358) developed by Fujihara, Shinobu, Tokyo, Japan, and Oishi, Yutaka, Kanagawa, Japan, for a “
controlling data writing of tape recording apparatus.

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A tape recording apparatus according to one embodiment includes a magnetic head and a controller coupled to the magnetic head. The tape recording apparatus is configured to: write data on a tape medium in a direction from a first end toward a second end of the tape medium using the magnetic head, and wrap-turn a running direction of the tape medium before reaching the second end and write a first portion of data remaining to be written when the data remaining to be written is smaller than a volume of the data to be written in one running of the tape medium so that an end of the data is written at a position close to the first end, and write a second portion of data remaining to be written toward the first end.

The patent application was filed on June 10, 2015 (14/735,473).

Detecting servo pattern using data channel in magnetic tape drive
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,324,348) developed by Blinick, Katherine T., Tempe, AZ, Cherubini, Giovanni, Rueschlikon, Switzerland, Hutchins, Robert A., Tucson, AZ, and Jelitto, Jens, Rueschlikon, Switzerland, for a “
detecting a servo pattern using a data channel in a magnetic tape drive.

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”In one embodiment, a system for processing data includes an equalizer having a finite impulse response, (FIR) filter configured to process data read with a channel using servo coefficients to generate equalized data, and one or more low-pass filters configured to filter the equalized data to output filtered data. The one or more low-pass filters is configured to remove high frequency noise from the equalized data. A method for processing data in a read channel, in one embodiment, includes receiving data read from a magnetic tape using the read channel of a magnetic tape drive. A finite impulse response, FIR) filter is applied to the data by an equalizer using servo coefficients to output equalized data. One or more low-pass filters is applied to the equalized data to obtain filtered data, the one or more low-pass filters being configured to remove high frequency noise from the equalized data.

The patent application was filed on December 5, 2014 (14/562,596).

Protecting sensitive device from corrosion
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,324,343) developed by Bradshaw, Richard L., Tucson, AZ, Iben, Icko Eric Timothy, Santa Clara, CA, McKinley, Wayne A., and Randall, Lee C., Tucson, AZ, for a “
systems and methods for protecting a sensitive device from corrosion.

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A magnetic storage system according to one embodiment includes a magnetic head having a removable organic coating thereon in an amount sufficient for reducing exposure of the head to oxidation promoting materials. A kit according to one embodiment includes a drive having a magnetic head, and a tape having an applicator portion for applying an organic coating to the magnetic head for reducing exposure of the head to oxidation promoting materials.

The patent application was filed on December 18, 2014 (14/576,090).

Tape head assembly for linear tape open
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,305,580) developed by Cherubini, Giovanni, Furrer, Simeon, Jelitto, Jens, and Lantz, Mark A., Rueschlikon, Switzerland, for a “
tape head assembly for linear tape open.

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A tape head assembly includes a set of data readers configured to simultaneously read data from a set of adjacent data tracks of a tape storage medium, each data track having a width, wherein the width of each data reader of the set along a lateral extension of the tape head assembly is equal to or less than the width of a data track wherein the lateral extension of the tape head assembly is orthogonal to a longitudinal extension of the tape storage medium when arranged in a tape drive containing the tape head assembly spanning at least the set of data tracks during reading, and a servo reader arrangement containing at least one servo reader arranged laterally offset from one of the data readers by less than the width of a data track.

The patent application was filed on July 8, 2015 (14/793,984).

Writing multiple files simultaneously to tape media
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,304,688) developed by Fujihara, Shinobu, and Oishi, Yutaka, Tokyo, Japan, for a “
writing multiple files simultaneously to a tape media.

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”In one embodiment, a method includes storing data received from at least two data sources in a buffer, writing the data from the at least two data sources to regions in a first wrap of a tape on a data-source basis in a first predetermined order, and writing the data from the at least two data sources to regions in the second wrap in a second predetermined order, the second predetermined order being a reverse order relative to the first predetermined order.

The patent application was filed on August 5, 2015 (14/819,374).

Tape dimension compensation
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,299,375) developed by Herget, Philipp, San Jose, CA, for a “
tape dimension compensation.

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”In response to determining that a first write operation is to be performed on a portion of tape, writing data to a data track with a tape head element spacing at a nominal value. A tape width of one or more tape positions at which data is written is recorded. In another aspect, a tape width value associated with a tape is retrieved. A current tape width value associated with the tape is determined, and the tape head element spacing is set based on a difference between the retrieved tape width value and the determined current tape width value.

The patent application was filed on November 18, 2014 (14/546,112).

Coarse actuator positioning algorithm
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,299,373) developed by Bui, Nhan X., Tucson, AZ, Pantazi, Angeliki, Thalwil, Switzerland, and Taketomi, Tomoko, Yamato, Japan, for a “
coarse actuator positioning algorithm.

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A method according to one embodiment includes generating or receiving a value representative of a lateral position of a tape. The value is used to adjust a position of a coarse actuator in response to determining that the value is in a first range relative to a first threshold. An integrator center value is used to adjust the position of the coarse actuator in response to determining that the value is in a second range relative to the first threshold.

The patent application was filed on March 3, 2015 (14/637,317).

Low friction tape head
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,299,368) developed by Biskeborn, Robert G., Hollister, CA, and Liang, Jason, Campbell, CA, for a “
low friction tape head.

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A magnetic head according to one embodiment includes outer portions each having a tape bearing surface and an array of transducers selected from a group consisting of readers and writers, 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, wherein outer edges of the tape bearing surfaces of the outer portions are non-skiving, wherein 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 patent application was filed on August 25, 2014 (14/468,251).

Miniskirt tape head having quasi-statically tilted transducer arrays
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,299,365) developed by Biskeborn, Robert G., Hollister, CA, and Lo, Calvin S., Saratoga, CA, for a “
miniskirt tape head having quasi-statically tilted transducer arrays.

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”In one general embodiment, an apparatus includes a magnetic head. The magnetic head has a first portion and a second portion, the first portion and the second portion together providing a tape bearing surface. The first portion has two pieces flanking the second portion in an intended direction of tape travel thereacross. The second portion has at least one array of transducers. A longitudinal axis of each of the at least one array is defined between opposite ends thereof. The longitudinal axis of each of the at least one array of transducers is oriented at an angle relative to the line oriented orthogonally to the intended direction of tape travel thereacross, the angle being between 0.2.degree. and about 10.degree.

The patent application was filed on September 21, 2015 (14/860,644).

Abrasion test
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,293,152) developed by Biskeborn, Robert G., Hollister, CA, Liang, Jason, Campbell, CA, and Lo, Calvin S., Saratoga, CA, for a “
abrasion test methods and devices.

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A system according to one embodiment includes a carrier for receiving a module, a transport mechanism for running a tape across a tape bearing surface of the module, and a measuring device for measuring an extent of wear of a coating on a tape bearing surface of the module. A module according to one embodiment includes a body having a tape bearing surface, the body having an approximate tape bearing surface profile and dimensions as a module of interest, and a coating on the tape bearing surface. A method according to one embodiment includes measuring an initial coating thickness on a tape bearing surface of a module in a carrier, running a tape across the tape bearing surface, and at intervals, measuring a residual thickness of the coating.

The patent application was filed on January 25, 2012 (13/358,415).

Tape drive buffer utilization
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,285,996) developed by Butt, Kevin D., Tucson, AZ, Greco, Paul M., Tucson, AZ, Katagiri, Takashi, and Mori, Yuhko, Yokohama, Japan, for a “
tape drive buffer utilization.

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Various embodiments for improving tape drive efficiency using a processor device are provided. In one embodiment, a method comprises aggregating one of records and filemarks, the aggregating restricted to being performed only on read operations, from a plurality of data segments into at least one single data segment, including sequentially aggregating the one of the records and filemarks into the at least one single data segment.

The patent application was filed on October 5, 2015 (14/874,722).

Primary storage media with associated secondary storage media for efficient data management
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,275,678) developed by Amir, Arnon, Saratoga, CA, Imaino, Wayne I., Pease, David A., and Richter, Rainer, San Jose, CA, for a “
primary storage media with associated secondary storage media for efficient data management.

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A system according to one embodiment includes a tape cartridge, the tape cartridge comprising: a housing, a magnetic recording tape in the housing, and a non-tape nonvolatile memory coupled to the housing, the nonvolatile memory being for storing therein an index comprising file system information for a plurality of files stored on the magnetic recording tape. A method for storing data on a tape cartridge according to one embodiment includes writing a plurality of files to a magnetic recording tape of a tape cartridge, and writing an index to a non-tape nonvolatile memory of the tape cartridge, the index including information about locations of data of the plurality of files on the magnetic recording tape.

The patent application was filed on March 25, 2010 (12/732,151).

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