Bridgestone Corporation

International Business Machines Corporation

Globalfoundries Inc.

Mitsuhiro Nishida

Masato Yoshikawa

Yukihiro Kusano

Yoshinori Iwabuchi

Tsuyoshi Miyamura

Setsuko Masuda

Hirokazu Nakayama

Tatsuki Sawada

Ernest Stewart Gale

Josephine F Bayang

Nobuko Kato

Shingo Ohno

Takashi Katagiri

Daniel James Winarski

Allen Keith Bates

Steven Ross Bentley

Hidefumi Kotsubo

Taichi Kobayashi

Hisato Matsuo

Hirotaka Yamazaki

Shingo Oono

Katsuhiko Hagiwara

Fahnmusa Christian Jangaba

Christine Renee Knibloe

Randall Scot Doan

Embodiments of the present invention provide a system, method, and computer program product for offsetting a reading head on a magnetic tape to improve verification. A processor determines a write head width, a read head width, and a track pitch based on determining an LTO standard of the magnetic tape. The processor determines a distance of the reading head from a writing head using the write head width, the read head width, and the track pitch, and causes a tape appliance to relocate the read head on the magnetic tape to the determined distance.

Reducing deviation of read head position between writing and reading in a magnetic tape

A tool for scaling media utilizing healthy regions of a data storage cartridge. The tool determines a health status index for one or more regions of a data storage cartridge. The tool records the health status index to a cartridge memory and housekeeping dataset of the data storage cartridge. The tool determines one or more available regions of the data storage cartridge, based, at least in part, on a capacity designation and the health status index for the one or more regions. The tool returns the one or more available regions and a reduced capacity for the data storage cartridge to a user.

Scaling media utilizing healthy regions of a tape cartridge

In an approach to using a cut and paste segment for reading an sHKDS, a request to reposition a tape media in a tape drive is received. Responsive to encountering an error reading an sHKDS while attempting to reposition the tape media, one segment of a plurality of segments from a data set cut and paste error recovery procedure (ERP) is used for an sHKDS cut and paste ERP. Responsive to recovering the sHKDS using the sHKDS cut and paste ERP, the one segment reserved for the sHKDS cut and paste ERP is released to the data set cut and paste ERP.

Using a cut and paste segment for reading a standard housekeeping data set

Repositioning to a beginning of an area of a tape medium to which a reposition request is directed can be completed. Reading, as a part of an error recovery procedure (ERP), between a first dataset of the area and an mdataset of the area, can be completed, where m is a number of datasets for which cut and paste multi segments are to be generated. Cut and paste segments for each of the datasets in a range from the first dataset and the mdataset can be generated. A subset of datasets within the range of the first dataset to the mdataset having readable dataset information table (DSIT) information can be determined. A determination can be made whether the target data position is included within the subset of datasets within the range of the first dataset to the mdataset by reading the DSIT information.

Repositioning using cut and paste segments

The present invention provides a search method used to search for the reading order of a plurality of recording groups when the plurality of recording groups written on tape are continuously read by a tape drive which manages data on tape in recording units having a fixed data length for each recording. This search method includes the steps of: receiving information on a plurality of tape groups to be read; and sorting the plurality of recording groups to be read so the reading time is shortened. In the sorting step, the time required to sort the plurality of reading groups is reduced by combining two or more recording groups into a single object to be sorted in the sorting step when at least two or more contiguous recording groups have been assigned to the same region or are assigned across adjacent regions among the plurality of regions.

Reading order search method and program for recording

Reading order search method and program for recording groups on tape

Described herein are embodiments for utilizing stored write environment conditions for read error recovery. A tape drive measures read environment conditions as a result of receiving a read command to read data from a portion of tape and compares the read environment conditions to the write environment conditions stored for that portion of tape. If the read environment conditions are not within the predetermined range of the write environment conditions, then the handling of the tape is altered to improve read element placement on the tape by accounting for expansion and contraction of the tape based on the stored write environment conditions. The handling of the tape is altered by at least one of increasing or decreasing the tension of the tape, offsetting the tape head up or down laterally with respect to the tape, and slowing down the movement of tape across the tape head.

Utilizing stored write environment conditions for read error recovery

Described are embodiments of an invention for storing write environment conditions of a tape cartridge. A tape drive measures and stores the write environment conditions for a portion of tape as a result of receiving a write command to write data to the same portion of tape. In one embodiment, the write environment conditions are measured and stored to the tape cartridge each time a write command is received such that each portion of tape written has corresponding stored write environment conditions. The write environment conditions include temperature and relative humidity in one embodiment. The stored write environment conditions for each portion of tape written creates a historical log of the environment conditions that the tape was written within. The historical log can provide information to a manufacturer or user regarding the environmental conditions the user operates their tape drive within and provides information to assist with failure analysis.

Storing write environment conditions

In an information display system panel, color filters each having respective colors are arranged to an outer surface of a transparent substrate at an observation side having a refractive index n and a thickness d, in such a manner that an overlap area between the color filter and the pixel is set in a range of 50%-100% with respect to an area of the pixel, so that a portion between adjacent color filters having different colors, which is perpendicular to a tilt visual direction, is spaced at either one of an upper and lower sides and a right and left sides of the color filter; and a relation between a visual filed displacement I indicated by following formula (1), which is generated when the image displayed by the display media is viewed as a reflected light refracted at 45&#xb0; with respect to a surface of the color filter, and LS and DS denoting a pixel pitch and a pixel space along a visual direction respectively, satisfies I&#x2266;0.5&#xd7;(DS+LS);&#xd7;[sin&#x3b8;/(&#x2212;sin&#x3b8;)]&#x3b8;=45&#xb0;&#x2003;&#x2003;formula (1). According to the invention, an information display panel which can prevent a color mixture with the adjacent pixel when viewed at a slant angle and can perform a color display having an excellent color reproducibility can be obtained.

Information display panel

A magnetic tape drive having a tape drive system for moving magnetic tape, tape read/write and servo system, tape cartridge load/unload systems, I/O communications, memory; and a control system, operates in three modes to conserve energy consumption. A first low power mode powers the I/O communications, the memory, and the control system. If a magnetic tape cartridge is in loaded position in the magnetic tape drive, the second low power mode powers the same as the first low power mode, and additionally powers the tape drive system to apply tension to a magnetic tape of the magnetic tape cartridge. In the first and the second low power modes, the control system operates the I/O communications, the memory and the control system to respond to and execute commands received at the I/O communications if the commands are executable without magnetic tape access. The third, full power mode, is entered if a command received at the I/O communications requires magnetic tape access.

Power mode operation of a magnetic tape drive

A transparent conductive film comprising a polymer film and a transparent conductive layer provided thereon, especially a transparent conductive film improved in durability and mechanical and electrical properties, a process for the preparation thereof, and a touch panel provided with the transparent conductive film, as well as transparent conductive plate and the process for the preparation thereof. The transparent conductive film comprising a polymer film, an undercoat layer and a transparent conductive layer which are superposed in this order, and the undercoat layer contains a compound having at least one selected from an amino group and a phosphoric acid group.

Transparent electroconductive film, method for manufacture thereof, and touch panel

A method of producing an anti-reflection film includes forming a first layer on a transparent substrate, forming a second layer on the first layer, and forming the third layer on the second layer. When an optical admittance Y at a surface of the second layer is represented by, where i is the imaginary number unit,thicknesses and reflective indexes of the substrate, first layer, second layer, and third layer are selected so that x and y satisfy the following formula,0.9{()/2&#x2212;()/2&#x3c;1.1{()/2}where n is a refractive index of the third layer and nis a refractive index of an outer region at an outside of the anti-reflection film.

Method of producing anti-reflection film

An optical substrate includes a transparent substrate; an interference spot-preventing layer composed of at least one sublayer, the interference spot-preventing layer being coated on the transparent substrate; and a hard coat layer disposed on the interference spot-preventing layer. In the optical substrate, when the complex refractive index of the hard coat layer at light of 550 nm is represented as n&#x2212;ik, nis 1.45 to 1.59 and k is substantially zero. When the optical admittance of the interface between the interference spot-preventing layer and the hard coat layer is represented as (x+iy), x and y satisfy the formula of (x&#x2212;n)+y&#x2266;0.08.

Optical substrate and antireflective film

A touch panel includes a transparent electro-conductive film. The transparent electro-conductive film comprises a primary layer formed on a polymer film, and a transparent electro-conductive thin film or a multi-lamination film composed of at least one metal-compound layer and at least one electro-conductive-metal layer is formed on the primary layer. The primary layer is made of silicon compound. The primary layer is formed by sputtering, using a target having a density of 2.9 g/cmor more.

Growing community of inventors

Tokyo, Japan

Mitsuhiro Nishida