Patent application number | Description | Published |
20100188775 | BIASING STRUCTURE FOR WRITE ELEMENT DOMAIN CONTROL IN A MAGNETIC WRITER - A magnetic writer includes a write element having a first domain pattern when in a quiescent state and a second domain pattern when in an active state. A biasing structure is configured to induce the write element into the first domain pattern when the magnetic writer is in the quiescent state. | 07-29-2010 |
20100214698 | DOMAIN CONTROL IN BOTTOM SHIELD OF MR SENSOR - A shield for a read element of a magnetic recording head includes a first domain with boundaries remote from the read element and stabilized with a patterned bias element. The patterned bias element comprises a topographical pattern of grooves formed on the shield substrate. | 08-26-2010 |
20110268991 | HEAD WITH HIGH READBACK RESOLUTION - An apparatus that includes a first read shield and a second read shield and a reader stack between the first and second read shields. The first and second read shields each include a thin high permeability layer closest to the reader stack and a low permeability layer and/or a geometric feature to control magnetic field flux lines in a free layer of the reader stack. | 11-03-2011 |
20120120519 | Resistance Temperature Sensors for Head-Media and Asperity Detection - A temperature sensor of a head transducer measures temperature near or at the close point. The measured temperature varies in response to changes in spacing between the head transducer and a magnetic recording medium. A detector is coupled to the temperature sensor and is configured to detect a change in a DC component of the measured temperature indicative of onset of contact between the head transducer and the medium. Another head transducer configuration includes a sensor having a sensing element with a high temperature coefficient of resistance to interact with asperities of the medium. Electrically conductive leads are connected to the sensing element and have a low temperature coefficient of resistance relative to that of the sensing element, such thermally induced resistance changes in the leads have a negligible effect on a response of the sensing element to contact with the asperities. | 05-17-2012 |
20120120522 | Head Transducer with Multiple Resistance Temperature Sensors for Head-Medium Spacing and Contact Detection - A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign. | 05-17-2012 |
20130083429 | BIASING STRUCTURE FOR WRITE ELEMENT DOMAIN CONTROL IN A MAGNETIC WRITER - A magnetic writer includes a write element having a first domain pattern when in a quiescent state and a second domain pattern when in an active state. A biasing structure is configured to induce the write element into the first domain pattern when the magnetic writer is in the quiescent state. | 04-04-2013 |
20130083433 | MAGNETIC TRANSDUCER - A magnetic head that includes: a slider having a leading edge and a trailing edge; and a transducer, the transducer formed on the trailing edge of the slider and the transducer including: a substrate; a basecoat positioned adjacent the substrate, wherein the basecoat includes a material having a Young's modulus that is less than that of alumina and a coefficient of thermal expansion that is less than that of alumina; a reader; a writer; a heater; and an overcoat encasing at least a portion of the transducer, wherein the overcoat includes a material having a Young's modulus that is less than that of alumina and a coefficient of thermal expansion that is less than that of alumina. | 04-04-2013 |
20130128385 | OVERCOATS THAT INCLUDE MAGNETIC MATERIALS - A device having an air bearing surface, the device including a writer portion having an air bearing surface at the air bearing surface of the device; and an overcoat layer disposed on at least a portion of the air bearing surface of the writer portion, wherein the overcoat includes a material having a magnetic moment of at least about 0.1 Tesla (T). | 05-23-2013 |
20130201577 | ACTIVELY SYNCHRONIZING MAGNETIC RESPONSES OF A SHIELD AND A WRITE POLE - In an example, a method of manufacturing a transducer head comprises configuring a control circuit to actively synchronize magnetic responses of a shield and a write pole during operation. The method also comprises configuring the control circuit to energize at least one coil wire during operation with a current direction opposite to current flow in a main transducer head coil. In another example, a method comprises actively synchronizing magnetic responses of a shield and a write pole. In another example, a transducer head comprises a write pole and a shield, and a control circuit actively synchronizes magnetic responses of the shield and the write pole. | 08-08-2013 |
20130286805 | SENSING TEMPERATURE AT A SLIDER PROTRUSION REGION - An apparatus includes a near-field transducer at or near an air bearing surface of the apparatus. A write pole is disposed at or near the air bearing surface and proximate the near-field transducer, respectively. A thermal sensor is disposed at the air bearing surface and within a protrusion region of the air bearing surface defined relative to at least one of the near-field transducer and the write pole. The thermal sensor is configured to produce a signal indicative of a temperature at the protrusion region. | 10-31-2013 |
20140063644 | Magnetic Element with Multiple Selective Transducing Elements - An apparatus and generally associated method may be directed to a magnetic reader capable of concurrently or independently data access and environmental measurements. Various embodiments construct such a magnetic reader with first and second data transducing elements that are each adapted to selectively read data and measure clearance from an adjacent data storage media. | 03-06-2014 |
20140146856 | THIN FILMS HAVING LARGE TEMPERATURE COEFFICIENT OF RESISTANCE AND METHODS OF FABRICATING SAME - An apparatus comprises a head transducer and a resistive temperature sensor provided on the head transducer. The resistive temperature sensor comprises a first layer comprising a conductive material and having a temperature coefficient of resistance (TCR) and a second layer comprising at least one of a specular layer and a seed layer. A method is disclosed to fabricate such sensor with a laminated thin film structure to achieve a large TCR. The thicknesses of various layers in the laminated thin film are in the range of few to a few tens of nanometers. The combinations of the deliberately optimized multilayer thin film structures and the fabrication of such films at the elevated temperatures are disclosed to obtain the large TCR. | 05-29-2014 |
20140268410 | RESISTANCE TEMPERATURE SENSORS FOR HEAD-MEDIA AND ASPERITY DETECTION - A temperature sensor of a head transducer measures temperature near or at the close point. The measured temperature varies in response to changes in spacing between the head transducer and a magnetic recording medium. A detector is coupled to the temperature sensor and is configured to detect a change in a DC component of the measured temperature indicative of onset of contact between the head transducer and the medium. Another head transducer configuration includes a sensor having a sensing element with a high temperature coefficient of resistance to interact with asperities of the medium. Electrically conductive leads are connected to the sensing element and have a low temperature coefficient of resistance relative to that of the sensing element, such thermally induced resistance changes in the leads have a negligible effect on a response of the sensing element to contact with the asperities. | 09-18-2014 |
20140269819 | CONTACT DETECTION USING LASER MODULATION - An apparatus is arranged to detect contact between an air bearing surface of a transducer and a medium using a modulated thermal sensor signal. A laser source produces modulated laser light. A thermal sensor is disposed at or near the air bearing surface and is subject to cyclic heating by the modulated laser light. The thermal sensor is configured to produce the modulated sensor signal in response to the cyclic heating. | 09-18-2014 |
20140269838 | RESISTANCE TEMPERATURE SENSORS POWERED USING READER BOND PAD SHARING - A head transducer comprises a reader coupled to reader bond pads and configured to interact with a magnetic storage medium. A first thermal sensor is configured to produce a first sensor signal. The first sensor is biased relative to a common mode voltage at the reader bond pads. A second thermal sensor is configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic storage medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. | 09-18-2014 |
20140347760 | HEAD TRANSDUCER WITH MULTIPLE RESISTANCE TEMPERATURE SENSORS FOR HEAD-MEDIUM SPACING AND CONTACT DETECTION - A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign. | 11-27-2014 |
20140355150 | HEAD TRANSDUCER WITH MULTIPLE RESISTANCE TEMPERATURE SENSORS FOR HEAD-MEDIUM SPACING AND CONTACT DETECTION - A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign. | 12-04-2014 |
20150062754 | WRITER CORE INCORPORATING THERMAL SENSOR HAVING A TEMPERATURE COEFFICIENT OF RESISTANCE - A writer core of a transducer is configured to interact with a magnetic recording medium and comprises an upper core and a lower core. At least one of the upper and lower cores comprises a return pole having a return shield. The apparatus also comprises a writer pole between the upper and lower cores, and a writer gap defined between the writer pole and the return shield. The apparatus further comprises a sensor element within one of the upper and lower cores that includes the writer gap. The sensor element has a temperature coefficient of resistance and is configured to sense for a change in temperature indicative of one or both of a change in spacing and contact between the transducer and the magnetic recording medium. | 03-05-2015 |
20150085630 | MULTI-PURPOSE NEAR-FIELD TRANSDUCER HAVING A TEMPERATURE COEFFICIENT OF RESISTANCE - An apparatus includes a writer, an arrangement comprising a plasmonic near-field transducer (NFT) adjacent the writer and comprising a material having a temperature coefficient of resistance (TCR), and a lead arrangement connected to the NFT arrangement. In some configurations, the NFT arrangement includes a heat sink, and the lead arrangement is connected to the heat sink. In other configurations, the lead arrangement is connected directly to the NFT. | 03-26-2015 |
20150103430 | BOND PAD SHARING FOR POWERING A MULTIPLICITY OF ELECTRICAL COMPONENTS - A bond pad set includes at least one ground pad and at least one electrical bond pad configured to bias and send/receive signals. The bond pad set is electrically connected to a multiplicity of electrical components. At least one electrical bond pad of the bond pad set is shared between two or more of the electrical components. | 04-16-2015 |
20150162022 | FLEXIBLE BIASING STRATEGY FOR GROUND-SPLIT TCR SENSORS - A first biasing potential is sent to a first input end of a first temperature coefficient of resistance (TCR) sensor having a first ground end coupled to a ground potential. A second biasing potential is sent to a second input end of a second TCR sensor having a second ground end coupled to the ground potential. The first and the second biasing potentials are changed to operate in a plurality of modes. | 06-11-2015 |
20150162038 | ELECTRICALLY REMOVABLE HEATER FOR A THERMALLY ACTUATABLE THERMAL ASPERITY SENSOR - An apparatus comprising a writer, a reader, and a sensor configured to at least sense thermal asperities of a magnetic storage medium. The apparatus includes a writer heater configured to thermally actuate the writer, a reader heater configured to thermally actuate the reader, and a sensor heater configured to thermally actuate the sensor. The thermally actuated sensor is configured to detect thermal asperities arising from the magnetic storage medium during a topographical survey of the medium. The sensor heater is configured to be rendered inoperable subsequent to the survey in response to receiving a predetermined signal while the writer and the reader heaters remain operable. | 06-11-2015 |
Patent application number | Description | Published |
20100057834 | Method and System for Facilitating Client Server Interaction - The system includes a server module to interact with a base client. The server module interacts with the logic of the web application to obtain the data requested by a base client data and sends it back to the base client in a format handled by the base client. The base client may then reformat the data to a client application requested format before passing the data to the client application. This method and system allows a client application programmer to obtain easily usable data from a web application by using the base client. | 03-04-2010 |
20100057937 | Method and System for Facilitating Client Server Interaction - The apparatus includes a base client module and a server module. The base client module receives requests from a client application on a client computer. The base client module calls a resource of a web application.. A server module transparently interacts with the logic of the web application to obtain the requested data and sends it back to the base client in a format handled by the base client. The base client can then reformat the data to a client application requested format before passing the data to the client application. This method allows a client application programmer to obtain easily usable data from a web application by using the base client. | 03-04-2010 |
20100058325 | Live Operating System Installation Method and System for Universal Serial Bus Devices - A method and apparatus for the installation of a live operating system includes an installation module that automatically detects available portable removable storage devices. The installation module also automatically determines available operating systems for installation on the portable removable storage devices. The determination of available operating systems can include checking for available operating systems on remote servers. The installation module provides a user interface that is populated with the available installation options including the options to select a size of a persistent overlay and the use of encryption. The installation process installs the user selected operating system on the user designated portable removable storage device and validates the installation. The installation can be performed without generating a new partition on the portable removable storage device and without reformatting the device. | 03-04-2010 |
20100174577 | Automated Task Delegation Based on Skills - The automated task delegation and project management system tracks user profiles and project profiles, which include information about the interests and skills each user in the system possess as well as the skills that are required by each project in the system and the characteristics of each project. This information can then be utilized to correlate user interests and skills with the available projects. Similarly, these user profiles can be utilized to identify mentors for new users in the system based on the skill sets and project involvement of other users and potential mentors in the system and the interests and skill sets of the new users. | 07-08-2010 |
20100174578 | Interface for Project and Task Submission for Automated Delegation - The automated task delegation and project management system tracks user profiles and project profiles, which include information about the interests and skills each user in the system possesses as well as the skills that are required by each project in the system and the characteristics of each project. This information can then be utilized to correlate user interests and skills with the available projects. Project data can be collected from the submitter to enable the automated matching. The user interface facilitates the collection and storage of the project profile data including tasks, files, resources, and tags. | 07-08-2010 |
20110125823 | ARCHITECTURE, SYSTEM AND METHOD FOR A MESSAGING HUB IN A REAL-TIME WEB APPLICATION FRAMEWORK - A method and apparatus for providing a hub in a real-time web application framework is described. In one embodiment, the method includes running applications on a hub server computer system within a real-time web application framework. The method may also include running each application based on configuration parameters associated with each application, the hub server computer system running the applications outside of a web application stack run on a web server computer system of the real-time web application framework. | 05-26-2011 |
20110125834 | ARCHITECTURE, SYSTEM AND METHOD FOR PROVIDING A PLUG-IN ARCHITECTURE IN A REAL-TIME WEB APPLICATION FRAMEWORK - A method and apparatus for providing a plug-in architecture in a real-time web application framework is described. In one embodiment, the method includes receiving an application to be installed on a hub of a real-time web application framework. The method may also include installing the application on an entry point of the hub, the application one of a plurality of different types of applications to be automatically run by the hub. | 05-26-2011 |
20110125854 | ARCHITECTURE, SYSTEM AND METHOD FOR REAL-TIME WEB APPLICATIONS - A method and apparatus for providing real-time web applications is described. In one embodiment, the method includes obtaining data for a topic with a server computer system. The method may also include determining a client that is rendering a framework widget with a subscription to the topic. In one embodiment, the method may further include transmitting a message including the data from an application framework to the client to enable the framework widget to process the data, the message transmitted to the client without the client issuing a request for an update. | 05-26-2011 |
20110126134 | ARCHITECTURE, SYSTEM AND METHOD FOR PROVIDING A REAL TIME WEB APPLICATION FRAMEWORK SOCKET - A method and apparatus for providing real-time web applications is described. In one embodiment, the method includes receiving a web page from a web application framework at a client computer system, the web page including at least one framework widget with a subscription to a topic. The method may also include opening a framework socket in a web browser run on the client computer system. In one embodiment, the method may further include rendering the framework socket along with the at least one framework widget in a web browser run by the client computer system. | 05-26-2011 |
20110126213 | ARCHITECTURE, SYSTEM AND METHOD FOR PROVIDING REAL TIME WIDGETS IN A WEB APPLICATION FRAMEWORK - A method and apparatus for providing real-time widgets in a web application framework is described. In one embodiment, the method includes storing a topic in a framework widget. The method may also include receiving a data message, at a user computer system, from a message broker of a real-time web applications framework corresponding to the topic. In one embodiment, the method may also include executing one or more callback functions, specified by the framework widget, to process the data message in response to receiving the data message. | 05-26-2011 |
20120023418 | ACHITECTURE, SYSTEM AND METHOD FOR A REAL-TIME COLLABORATION INTERFACE - A method and apparatus for a real-time interface for collaborating between users is described. In one embodiment, the method includes receiving a request to initiate a collaboration on a particular subject. The method may also include selecting a collection of framework widgets based on the particular subject, each framework widget being a web-based component that is updated in real time. In one embodiment, the method may further include embedding the collection of framework widgets in a collaboration interface. | 01-26-2012 |