Class / Patent application number | Description | Number of patent applications / Date published |
360134000 | Tape | 24 |
20080204932 | TAPE CARTRIDGE OF COMPATIBLE TYPE - A tape cartridge capable of recording and reading out large and small tape cartridges with different widths is provided. The tape cartridge comprises a pair of right and left hubs for winding a tape which is winded off from one hub and is wound around the other hub via tape guides. A passage for light injection and a passage for light ejecting of the tape end detection light are opened respectively on a side wall of a case of a main body facing a tape traveling path between the tape guide and the hub, and an optical path inverted body facing a pair of passages across the tape traveling path is arranged in the case of the main body. One of the passages for light injection and the passages for light ejecting in the large and small tape cartridges is formed at a prescribed distance from the reference surface. | 08-28-2008 |
20080304180 | Bias techniques for magnetic tape media - The disclosure is directed to a method for creating a remanence magnetization on a magnetic tape medium. The magnetic tape is first substantially demagnetized, e.g., erased, by an erasure unit having multiple magnetic elements of alternating polarity. The erased magnetic tape is then passed by a bias magnet that creates a remanence magnetization on the magnetic tape. The remanence magnetized magnetic tape is then passed through a servo write head that writes servo patterns to the remanence magnetized magnetic tape. The bias magnet may be housed within the erasure unit or within a bias unit, and the distance between the bias magnet and the tape path of the magnetic tape may be adjustable to create the desired remanence magnetization on the magnetic tape. The remanence magnetization created on the magnetic tape may be greater than 20 percent to reduce defects in the servo pattern written to the magnetic tape. | 12-11-2008 |
20080316650 | Method for Changing the Configuration of a Media Drive Apparatus, Computer Readable Medium, and Media Drive Apparatus - Provided is method for changing the configuration of a media drive apparatus using a removable storage medium, the configuration of the media drive apparatus being stored as a plurality of configuration settings in a first non volatile memory of the media drive apparatus, the method comprising
| 12-25-2008 |
20090040658 | MAGNETIC TAPE REEL, TAPE CARTRIDGE USING THE SAME, RECORDING AND REPRODUCING APPARATUS FOR RECORDING AND REPRODUCING INFORMATION IN THE TAPE CARTRIDGE, AND INFORMATION RECORDING AND REPRODUCING METHOD THEREOF - A magnetic tape reel that has a plurality of gear teeth capable of engaging with a plurality of engagement gear teeth provided with a reel engaging portion of a recording and reproducing apparatus and upon which magnetic tape can be wound, the magnetic tape reel comprising: a hub portion including a cylindrical portion upon which the magnetic tape can be wound and the plurality of gear teeth; and a positioning mark capable of being detected using a contactless detector, the positioning mark being provided for aligning a specific gear tooth A from the plurality of gear teeth with a specific engagement gear tooth B from the plurality of engagement gear teeth. | 02-12-2009 |
20090059428 | DATA STORAGE TAPE FOR MINIMIZED DAMAGE - A data storage device has a cartridge with tape having data and landing zones. One of the landing zones is aligned with a head during stopping of advancement of the tape to minimize damage. A data storage system is provided with a data storage device with data and landing zones, a read/write head, a motor for driving the tape and a processor for identifying the landing zone locations. A method for minimizing damage to data tape conveys base film along a coating head while intermittently dispensing a magnetic layer and a rougher coating layer to form landing zones. A method for minimizing damage to data storage tape provides a cassette with tape having intermittent data and non-data regions, that is inserted into a tape drive and a read or write function is performed. The tape is advanced to align a non-data region with a head and advancement is discontinued. | 03-05-2009 |
20090073609 | TAPE-BASED DATA STORAGE SYSTEM CAPABLE OF READING AND/OR WRITING MULTIPLE ERROR CORRECTABLE SETS OF DATA - A tape-based data storage system according to one embodiment includes a head having an array of channels for writing a set of data tracks on a magnetic tape; wherein data to be written on the magnetic tape in a given pass of the tape relative to the head is parsed into at least two error correctable sets, wherein each of the error correctable sets is written by a unique subset of the array of channels. A tape-based data storage system according to another embodiment includes a head having an array of channels for reading a set of data tracks on a magnetic tape; wherein data read from the magnetic tape in a given pass of the tape relative to the head includes at least two error correctable sets, wherein each of the error correctable sets is read by a unique subset of the array of channels. | 03-19-2009 |
20090109571 | TAPE CARTRIDGE AUXILIARY MEMORY CONTAINING TAPE DRIVE FUNCTIONAL STATUS INFORMATION - A data storage library is described including a plurality of tape cartridges each possessing an auxiliary radio frequency memory device. The library also includes, at least one tape drive capable of determining at least one functional status when loaded with one of the tape cartridges wherein the at least one tape drive possesses an auxiliary reader and writer device capable of transferring information associated with the at least one function status to and from the auxiliary radio frequency memory device. The tape drive also includes a means for transmitting the information from the auxiliary radio frequency memory device to a display device that can be viewed by an end user. | 04-30-2009 |
20090190259 | MAGNETIC TAPE SECURITY - A tape cartridge includes a housing and a length of magnetic tape disposed within the housing. Additionally, the tape cartridge includes at least one cartridge memory chip disposed within the housing and at least one RFID reader operably connected to at least one of the cartridge memory chips and configured to write at least one message to the cartridge memory chip based on a received RFID signal. | 07-30-2009 |
20090201610 | TAPE GUIDE ROLLERS - A tape guide roller includes a first flange and a second flange separated by a barrel wherein at least one of the first flange and second flange comprise a soft material. The soft material can include acetal homopolymers, such as Delrin. It can also include soft metals, such as aluminum. | 08-13-2009 |
20090244774 | MAGNETIC RECORDING MEDIUM AND PROCESS OF PRODUCING THE SAME - A magnetic recording medium includes a support and a magnetic layer containing a ferromagnetic powder and a binder, and has a cut surface along an edge of the magnetic recording medium, wherein the cut surface of the magnetic recording medium has a shear region whose length in a thickness direction of the magnetic recording medium is at least 50% of the thickness of the magnetic recording medium. | 10-01-2009 |
20090303635 | Servo Pattern Architecture and Method Using Same to Improve LPOS Encoding Efficiency - A sequential data storage medium, such as for example and without limitation a magnetic tape, comprising a sequence of plurality of servo patterns encoded therein, which provide lateral position information and LPOS information. Each servo pattern comprises a first burst comprising a first pulse, a second pulse, a third pulse, a fourth pulse and a fifth pulse and a second burst comprising a sixth pulse, a seventh pulse, an eighth pulse, a ninth pulse and a tent pulse. The widths of the plurality of pulses, in combination with the spacings between the plurality of pulses, encode two bits of data. | 12-10-2009 |
20100027164 | MAGNETIC MEDIA FORMED BY A THIN PLANAR ARBITRARY GAP PATTERN MAGNETIC HEAD - Magnetic media made using planar magnetic heads. A head may comprise a substrate having conductive thru-hole vias extending therethrough, a first magnetic layer deposited and patterned on the substrate, a first insulation layer deposited and patterned on the first magnetic layer, a conductive coil layer deposited and patterned on the first insulation layer and connected to the conductive thru-hole vias, a second insulation layer deposited and patterned on the conductive coil layer, vias patterned into the insulation layer extending to the first magnetic layer, a second magnetic layer deposited in the vias, and a third magnetic layer deposited and patterned on the second insulation layer and second magnetic layer. The third magnetic layer may be connected to the first magnetic layer through the second magnetic layer deposited in the vias of the insulation layers. | 02-04-2010 |
20100046117 | MAGNETIC RECORDING MEDIUM AND METHOD OF PRODUCING THE SAME - A magnetic recording medium includes a nonmagnetic support and a magnetic layer, and has a coefficient of dynamic friction, on the magnetic layer side surface, of 0.5 or larger as measured at a speed of 1 m/s relative to a sliding member of a magnetic head. | 02-25-2010 |
20100061017 | RECORDING TAPE CARTRIDGE - A recording tape cartridge comprising a casing that rotatably accommodates a single reel on which recording tape is wound; a shielding component that slides substantially along a side wall of the casing to open or block off an opening that is formed in the side wall for pulling out the recording tape; and a biasing projection provided projecting out from the casing and biasing the shielding component toward the side wall side when the shielding component has blocked off the opening. | 03-11-2010 |
20100073818 | RECORDING TAPE CARTRIDGE - The present invention provides a recording tape cartridge that when loaded in a drive device, generation of abrasion dust from a case can be restrained. The recording tape cartridge includes: a case in which a single reel with a recording tape being wound thereon is rotatably accommodated; a first region of the case, through which a plate spring provided in a drive device passes during loading of the recording tape cartridge into the drive device; and a second region of the case, which is disposed at a position higher than the first region and with which the plate spring comes into contact with pressure after the recording tape cartridge is loaded into the drive device. | 03-25-2010 |
20100182720 | HIGH AREAL DENSITY TAPE FORMAT AND HEAD - A magnetic recording tape according to one embodiment includes a plurality of servo tracks, each servo track comprising a series of magnetically defined bars, wherein an average height of the bars is less than about 50 microns. A magnetic recording tape according to another embodiment includes a plurality of servo tracks, each servo track comprising a series of magnetically defined bars, wherein an angle between at least some of the bars is greater than about 10 degrees. A magnetic recording tape according to yet another embodiment includes at least about eight data bands, the data bands being defined between servo tracks. | 07-22-2010 |
20100309583 | Methods, Systems and Apparatus for Reducing the Effects of Tape Dimensional Stability - A method, system, apparatus, and computer readable medium storing instructions for recording data tracks and a method and system for reading data tracks. For recording data tracks, virtual boundary of a first data track recorded on the storage medium is determined. The recording element is positioned based on the determined virtual boundary of the first track and a second data track is recorded by the positioned recording element. For reading data tracks, a first virtual boundary of a first data track and a second virtual boundary of the first data track are determined and a reading element is positioned at a center of the first data track based on the determined virtual boundaries. In the system of reading recorded data tracks, a number of forward reading elements and backward reading elements are provided. The forward reading elements have different pitches. | 12-09-2010 |
20110181985 | TAPE CARTRIDGE FORMATTED WITH PREDETERMINED ERROR PATTERNS FOR TESTING A TAPE HEAD OF A TAPE DRIVE - A tape drive assembly for data storage on a magnetic tape includes a tape head, a cartridge receiver and a controller. The cartridge receiver selectively receives a cartridge having a test tape formatted at a predetermined location with data errors with predetermined type, size and distribution representative of data errors in tape drives. The test tape is able to measure the quality of heads in suspect tape drives by comparing the ratio of the error count successfully recovered by the suspect head to that recovered by the reference drive while reading the same error distributions. | 07-28-2011 |
20110216444 | RECOVERY OPERATION STATUS INDICATOR FOR A TAPE DRIVE SYSTEM - A method, apparatus and computer-program product for indicating progress status of a mid-tape or data recovery operation in a tape drive. The method includes visually indicating that a recovery operation has started, periodically determining the remaining recovery time based on the remaining tape spool, and displaying the determined remaining recovery time to show progress status of the operation. The determination of the remaining recovery time includes determining the length of the tape being processed based on an estimated radius of the remaining tape spool and system parameters. The remaining recovery time is displayed with a moving track to show progress toward completion. | 09-08-2011 |
20110228424 | DUAL GAIN CONTROL FOR MAGNETIC DATA STORAGE SYSTEM - A system according to one embodiment includes an analog input for receiving an analog signal; a variable gain amplifier coupled to the analog input; a first gain control circuit coupled to the variable gain amplifier for controlling the gain of the analog signal; an analog to digital converter for converting the analog signal to a digital signal; a first gain error generation circuit for generating a first gain error signal based on an output of the analog to digital converter, the first gain error signal or derivative thereof being received by the first gain control circuit; and a second gain error generation circuit for generating a second gain error signal based on the digital signal, the second gain error signal or derivative thereof being received by the first gain control circuit, wherein the first gain control circuit uses at least one of the gain error signals to control the gain of the analog signal. | 09-22-2011 |
20120069473 | MAGNETIC MEDIA FORMED BY A THIN PLANAR ARBITRARY GAP PATTERN MAGNETIC HEAD - Magnetic media made using planar magnetic heads. A head may comprise a substrate having conductive thru-hole vias extending therethrough, a first magnetic layer deposited and patterned on the substrate, a first insulation layer deposited and patterned on the first magnetic layer, a conductive coil layer deposited and patterned on the first insulation layer and connected to the conductive thru-hole vias, a second insulation layer deposited and patterned on the conductive coil layer, vias patterned into the insulation layer extending to the first magnetic layer, a second magnetic layer deposited in the vias, and a third magnetic layer deposited and patterned on the second insulation layer and second magnetic layer. The third magnetic layer may be connected to the first magnetic layer through the second magnetic layer deposited in the vias of the insulation layers. | 03-22-2012 |
20120106004 | MEDIUM FOR USE IN A TAPE DRIVE APPARATUS - A tape medium has an identification segment located on a transparent leader segment of the tape medium for optical detection of the segment identification pattern. The segment identification pattern and the medium identification pattern have a predefined spatial relationship, enabling photo-optical detection of the segment identification pattern and reading of the medium identification pattern. The medium identification pattern carries various medium identification information, such as tape manufacturer, tape serial number and a tape medium property. | 05-03-2012 |
20120134053 | MAGNETIC SIGNAL REPRODUCTION SYSTEM AND MAGNETIC SIGNAL REPRODUCTION METHOD - The magnetic signal reproduction system comprises a magnetic recording medium comprising a magnetic layer comprising a ferromagnetic powder and a binder on a nonmagnetic support; and a reproduction head, wherein a number of protrusions equal to or greater than 10 nm in height on the magnetic layer surface, as measured by an atomic force microscope, ranges from 50 to 2500/10,000 μm | 05-31-2012 |
20130286510 | SYSTEMS AND METHODS FOR PROCESSING MAGNETIC MEDIA - A system comprises a magnetic medium with a first magnetic gap adjacent a first side and a second magnetic gap adjacent a second side, opposite the first magnetic gap. The first magnetic gap generates first longitudinal and perpendicular field components. The second magnetic gap generates second longitudinal and perpendicular field components. The first and second longitudinal field components are substantially aligned along a recording layer of the magnetic medium, and the first and second perpendicular field components are substantially opposed across the recording layer of the magnetic medium. | 10-31-2013 |