Patent application number | Description | Published |
20110092063 | Method of manufacturing silicon carbide semiconductor device - In a method of manufacturing a silicon carbide semiconductor device, a semiconductor substrate made of silicon carbide and having first and second opposing surfaces is prepared. The second surface of the semiconductor substrate is processed so that a surface roughness of the second surface is less than or equal to 10 nm and a value of (100%-reflectance-transmittance) at a wavelength of a laser light is greater than or equal to 80%. A metal layer is formed on the second surface of the semiconductor substrate after the processing the second surface. The metal layer is irradiated with the laser light and thereby an ohmic electrode is formed on the second surface. | 04-21-2011 |
20110192630 | ELECTRONIC DEVICE AND METHOD OF MANUFACTURING THE SAME - An electronic device includes an electronic component, a joining member to be mechanically joined with the electronic component, and a metal conductor located between the electronic component and the joining member to mechanically join the electronic component and the joining member. The metal conductor is made of porous noble metal to have pores, and includes an end surface without being covered by the electronic component and the joining member. Furthermore, a reinforcing resin is impregnated from the end surface of the metal conductor to the pores inside of the metal conductor, so as to mechanically reinforce the metal conductor. | 08-11-2011 |
20110306188 | MANUFACTURING METHOD OF SILICON CARBIDE SEMICONDUCTOR DEVICE - In a manufacturing method of a silicon carbide semiconductor device, a semiconductor substrate made of single crystal silicon carbide is prepared, an amorphous layer is formed on a portion of the semiconductor substrate where an electrode is to be formed, a metal layer is formed on the amorphous layer, and the electrode including the metal layer and a silicide layer is formed by irradiating the metal layer with a laser light in such a manner that a part of the metal layer reacts with the amorphous layer and forms the silicide layer. | 12-15-2011 |
Patent application number | Description | Published |
20100315739 | APPARATUS AND METHOD TO ADJUST THE ORIENTATION OF A READ HEAD TO CORRECT FOR DYNAMIC SKEW - A method to adjust the orientation of a read head comprising a first read element and a second read element, wherein the first read element and the second read element are separated by a distance, wherein the method moves a sequential information storage medium adjacent to the read head, determines a skew angle for the sequential information storage medium with respect to the read head using the first read element and the second read element, and encodes that skew angle in a computer readable medium. | 12-16-2010 |
20110013312 | METHOD AND APPARATUS TO POSITION A HEAD MODULE COMPRISING SERVO ELEMENTS AND A PLURALITY OF DATA ELEMENTS - A method to position a head module, where the head module comprises at least one servo element and a plurality of data elements, where the servo element and each of the plurality of data elements can detect a servo signal, wherein the method includes moving a sequential information storage medium having a servo band encoded therein across the head module and detecting the servo band using the at least one servo element or any one of the plurality of data elements. | 01-20-2011 |
20120212853 | Method and Apparatus to Position a Head Module Comprising Servo Elements and Plurality of Data Elements - A method to position a head module, where the head module comprises at least one servo element and a plurality of data elements, where the servo element and each of the plurality of data elements can detect a servo signal, wherein the method includes moving a sequential information storage medium having a servo band encoded therein across the head module and detecting the servo band using the at least one servo element or any one of the plurality of data elements. | 08-23-2012 |
Patent application number | Description | Published |
20090187852 | Electronic Mail Display Program Product, Method, Apparatus and System - To provide a technique for facilitating the management of an attachment file attached to an electronic mail. A client apparatus acquires attachment position information in a text of the electronic mail and stores it associated with an identifier of the electronic mail, in receiving the electronic mail with attachment file. Upon receiving an instruction for displaying the electronic mail from the user, the client apparatus arranges a graphic representing the attachment file of the electronic mail on a child screen that displays the reduced screen of a parent screen that displays the electronic mail based on the corresponding attachment position information, and displays the child screen together with the parent screen. | 07-23-2009 |
20110199701 | SKEW ACTUATOR TO SERVO TRACK ZERO REFERENCE - A servo detection system for detecting servo tracks of a longitudinal tape. In a read/write head, two servo read heads are spaced laterally on a first head module, and a servo read head is on a second head module spaced longitudinally from the first module. A method comprises initially sensing a tape servo track with one servo read head of the first module and the servo read head of the second module to determine skew misalignment of the servo track. A zero reference value is stored representing the determined skew misalignment. The detection system switches from the one servo read head of each module, to the two servo read heads of the first module, and employs the stored value to position the read/write head in the zero skew position. The two servo read heads are then employed to read two servo tracks to identify the data band and to control skew. | 08-18-2011 |
20110216434 | TIMING ALTERNATIVE INTERVALS WITHIN A TIMING BASED SERVO BAND - An alternative time interval is taken of a timing based servo band to determine lateral position of a servo read head. The servo band is arranged in a sequence bursts with non-parallel servo stripes in sequentially adjacent sub-frames of a linear tape. The timing intervals comprise at least a first time interval (A) between a first pair of non-parallel servo stripes of a sub-frame; and an alternative time interval (C) between a pair of non-parallel servo stripes intermediate the first time intervals (A), the alternative interval servo stripes of sequentially adjacent sub-frames comprising a second servo stripe of the first pair, and a first servo stripe of a sequentially succeeding first pair. Position signals are ratios involving the first and second time intervals. | 09-08-2011 |
20120147496 | SERVOMECHANISM WITH ADJUSTABLE PREDICTOR FILTER - A digital control system, and in particular a tape drive system having a track-following servomechanism with a predictor (also referred to herein as a predictor filter), is described. In certain embodiments, the servomechanism includes an actuator, a servo channel, and a predictor coupled to the servo channel. The predictor receives from the servo channel a lateral position estimate signal and determines a modified lateral position estimate signal that reduces a difference, introduced by a tape velocity-dependent delay, e.g., introduced by the servo channel, between the modified lateral position estimate signal and an actual lateral position. The modified lateral position estimate may be used to modify a control signal sent to the actuator. | 06-14-2012 |
20130132492 | Electronic Mail Display Device - To provide a technique for facilitating the management of an attachment file attached to an electronic mail. A client apparatus acquires attachment position information in a text of the electronic mail and stores it associated with an identifier of the electronic mail, in receiving the electronic mail with attachment file. Upon receiving an instruction for displaying the electronic mail from the user, the client apparatus arranges a graphic representing the attachment file of the electronic mail on a child screen that displays the reduced screen of a parent screen that displays the electronic mail based on the corresponding attachment position information, and displays the child screen together with the parent screen. | 05-23-2013 |
20140215146 | APPARATUS, METHOD AND PROGRAM PRODUCT FOR DETERMINING THE DATA RECALL ORDER - To provide a technique for optimizing the processing order of recall requests in which the average latency time of a host apparatus is minimized. A storage manager accepts a request of the host apparatus for the recalling data from a tape library, and stores the request in a queue table. In response to storage of the request, the storage manager calculates the latency time for each request in all the conceivable execution orders for all the requests stored in the queue table. The storage manager determines the execution order which minimizes the total calculated latency time for all the requests including the active request, and rearranges the requests in the queue table. | 07-31-2014 |
Patent application number | Description | Published |
20110134556 | Detection and Acquisition of a Servo Pattern Subject to Lateral Motion - A method, a servo system and a tape drive are provided to acquire lock on a servo signal. The servo signals of at least one servo element are monitored to detect a valid servo signal. If a valid servo signal is not detected than the fine actuator is moved in a first direction until either a valid servo signal is detected or the fine actuator travel limit is reached. When a valid servo signal is detected, the fine actuator is set to a neutral position and the coarse actuator is moved in the first direction. When the fine actuator travel limit is reached the fine actuator is moved to the first position and the coarse actuator is moved in a second direction, opposite of the first direction. | 06-09-2011 |
20110179222 | APPARATUS, METHOD AND PROGRAM PRODUCT FOR DETERMINING THE DATA RECALL ORDER - To provide a technique for optimizing the processing order of recall requests in which the average latency time of a host apparatus is minimized. A storage manager accepts a request of the host apparatus for the recalling data from a tape library, and stores the request in a queue table. In response to storage of the request, the storage manager calculates the latency time for each request in all the conceivable execution orders for all the requests stored in the queue table. The storage manager determines the execution order which minimizes the total calculated latency time for all the requests including the active request, and rearranges the requests in the queue table. | 07-21-2011 |
20120019953 | 'Tape Drive Velocity Control' - In accordance with the present invention, a method of operating a magnetic tape drive, a magnetic tape drive and a servo control system are provided for obtaining and maintaining velocity control in a magnetic tape drive. In one embodiment, a method is provided for operating a magnetic tape drive. The tape drive includes a plurality of DC motors, and each DC motor has a plurality of Hall sensors. The DC motors are under the control of a servo system which is configured to read location information from the magnetic tape, and compute a primary tape velocity from the location information, and sense a secondary and tertiary velocity signal and compute a tape velocity based on one of the sensed secondary velocity signal and tertiary velocity. The method includes detecting if the primary velocity location information is available. In response to detecting that the primary velocity location information is available the primary velocity is employed to control the servo system. In response to detecting the primary velocity location information is unavailable then one of a secondary or a tertiary velocity signal is employed. The secondary velocity signal is employed when an absolute value of a term related to tape velocity is less than a predetermined value. The tertiary velocity signal is employed when the absolute value of the term related to tape velocity is greater than the predetermined value. | 01-26-2012 |
Patent application number | Description | Published |
20140016226 | DETERMINING A SKEW ERROR SIGNAL (SES) OFFSET USED TO DETERMINE AN SES TO ADJUST HEADS IN A DRIVE UNIT - Provided are a computer program product, system, and method for determining a skew error signal (SES) offset used to determine an SES to adjust heads in a drive unit. A determination is made of a first difference in a first orientation with respect to a direction of movement of the recordable storage media based on first and second position information read by first and second servo read elements on a first head. A determination is made of a second difference in a second orientation with respect to the direction of movement of the recordable storage media based on third and fourth position information read by the first servo read element and a third servo read element on a second head. An offset, calculated based on the determined first and second difference, is used to generate an error signal to adjust the first and second heads. | 01-16-2014 |
20140029130 | METHOD AND APPARATUS FOR OPERATING A TAPE STORAGE DEVICE - In a method for operating a tape storage device comprising a tape head for reading and/or writing data from/to a tape in the tape storage device, a first tape skew value concerning a skew of the tape is determined and the first tape skew value is converted into a first skew control signal by means of a skew feedback controller. A second tape skew value concerning the skew of the tape is determined, and the second tape skew value is converted into a second skew control signal by means of feed-forward controller. At least one compensation signal for the second skew control signal is determined, and at least one of a rotational orientation of the tape head and a tape motion direction of the tape is controlled dependent on the second skew control signal and the compensation signal in case the first skew control signal fails. | 01-30-2014 |
20140268409 | DETERMINING A SKEW ERROR SIGNAL (SES) OFFSET USED TO DETERMINE AN SES TO ADJUST HEADS IN A DRIVE UNIT - Provided are a computer program product, system, and method for determining a skew error signal (SES) offset used to determine an SES to adjust heads in a drive unit. A determination is made of a first difference in a first orientation with respect to a direction of movement of the recordable storage media based on first and second position information read by first and second servo read elements on a first head. A determination is made of a second difference in a second orientation with respect to the direction of movement of the recordable storage media based on third and fourth position information read by the first servo read element and a third servo read element on a second head. An offset, calculated based on the determined first and second difference, is used to generate an error signal to adjust the first and second heads. | 09-18-2014 |
20150082192 | Highlighted Display of Unopened (Unread) Email Approaching Expiration Date - A mechanism is provided for highlighting a display related to unopened (unread) delivered email. The mechanism determines whether a delivered email has been opened (read) or remains unopened (unread). When it has been determined that the delivered email remains unopened, the mechanism determines whether the expiration date established for the delivered email has passed. When it has been determined that the established expiration date has not passed, the mechanism determines whether the time threshold for starting highlighted display established for the delivered email has passed. When it has been determined that the time threshold has passed, the mechanism highlights the display related to the delivered email. | 03-19-2015 |