Patents Represented by Attorney Strategic Patent Group, P.C.
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Patent number: 7587310Abstract: A system and method for implementing a sound processor. The sound processor includes a first voice engine, a second voice engine, and at least one single-port memory unit. An operation of the first voice engine and an operation of the second voice engine are time offset, wherein the time offset enables the first and second voice engines to share the at least one memory unit without contention. This results in cost savings and power consumption savings due to the smaller area needed for the memories.Type: GrantFiled: August 30, 2004Date of Patent: September 8, 2009Assignee: LSI CorporationInventor: David H. Lin
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Patent number: 7539960Abstract: An improved method for interconnect delay analysis for VLSI circuits reduces a parasitic graph for moment computation by eliminating one or more nodes in the graph. The elimination process is performed based upon the degree of the nodes. By eliminating nodes in this fashion, the computation complexity is significantly reduced. With this elimination process, resistor loops and crossed loops can also be solved. The order in which the nodes are eliminated is optimized using the depth-first-search method on the parasitic graphs, further reducing the computation complexity. The method provides a consistent functional interface, applicable to different circuit model structures. In addition, the method accounts for coupling capacitance between interconnects.Type: GrantFiled: June 1, 2006Date of Patent: May 26, 2009Assignee: LSI CorporationInventors: Weiqing Guo, Sandeep Bhutani
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Patent number: 7532213Abstract: The present invention provides a graphics processing unit for rendering objects from a software application executing on a processing unit in which the objects to be rendered are received as control points of bicubic surfaces. According to the method and system disclosed herein, the graphics processing unit includes a transform unit, a lighting unit, a renderer unit, and a tessellate unit for tessellating both rational and non-rational object surfaces in real-time.Type: GrantFiled: July 16, 2007Date of Patent: May 12, 2009Inventor: Adrian Sfarti
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Patent number: 7532505Abstract: A method and system for providing and utilizing a magnetic memory are described. The magnetic memory includes a plurality of magnetic storage cells. Each magnetic storage cell includes magnetic element(s) programmable due to spin transfer when a write current is passed through the magnetic element(s) and selection device(s). The method and system include driving a first current in proximity to but not through the magnetic element(s) of a portion of the magnetic storage cells. The first current generates a magnetic field. The method and system also include driving a second current through the magnetic element(s) of the portion of the magnetic storage cells. The first and second currents are preferably both driven through bit line(s) coupled with the magnetic element(s). The first and second currents are turned on at a start time. The second current and the magnetic field are sufficient to program the magnetic element(s).Type: GrantFiled: July 17, 2006Date of Patent: May 12, 2009Assignees: Grandis, Inc., Renesas Technology Corp.Inventor: Yunfei Ding
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Patent number: 7531882Abstract: A method and system for providing a magnetic element that can be used in a magnetic memory is disclosed. The magnetic element includes pinned, nonmagnetic spacer, and free layers. The spacer layer resides between the pinned and free layers. The free layer can be switched using spin transfer when a write current is passed through the magnetic element. The magnetic element may also include a barrier layer, a second pinned layer. Alternatively, second pinned and second spacer layers and a second free layer magnetostatically coupled to the free layer are included. At least one free layer has a high perpendicular anisotropy. The high perpendicular anisotropy has a perpendicular anisotropy energy that is at least twenty and less than one hundred percent of the out-of-plane demagnetization energy.Type: GrantFiled: September 30, 2005Date of Patent: May 12, 2009Assignee: Grandis, Inc.Inventors: Paul P. Nguyen, Yiming Huai
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Patent number: 7528616Abstract: A zero automated electrical testing (ATE) interposer daughter card (IDC) is provided for use in a test apparatus for ATE. Embodiments of the IDC include a first side having a first set of pads for mounting I/O's of a test package; and a second side having a second set of pads coupled to the first set of pads for replicating the first set of pads, wherein the second set of pads is located in area of the interposer card horizontally offset from the first set of pads, such that ATE measurements are obtained by removably inserting only a portion of the interposer card containing the second set of pads into an ATE test socket.Type: GrantFiled: May 27, 2005Date of Patent: May 5, 2009Assignee: LSI CorporationInventors: Carlo Grilletto, Zafer S. Kutlu
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Patent number: 7518835Abstract: A method and system for providing a magnetic element are disclosed. The method and system include providing a magnetic biasing structure having a first pinned layer, a second pinned layer, a spacer layer, and a free layer. The first pinned layer has a first magnetization pinned in the first direction. The second pinned layer has a second magnetization in a second direction that is substantially perpendicular or along the first direction. The spacer layer is nonferromagnetic, resides between the second pinned layer and the free layer, and is configured such that the free layer is substantially free of exchange coupling with the second pinned layer. The free layer has a shape anisotropy with a longitudinal direction substantially in the second direction. The magnetic biasing structure provides a bias field for the free layer along the hard or easy axis. In one aspect, the second pinned layer resides between the first pinned layer and the free layer.Type: GrantFiled: July 1, 2005Date of Patent: April 14, 2009Assignee: Grandis, Inc.Inventors: Yiming Huai, Dmytro Apalkov
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Patent number: 7515457Abstract: A method and system for providing and using a magnetic memory is described. The method and system include providing a plurality of magnetic storage cells. Each magnetic storage cell includes a magnetic element and a selection device coupled with the magnetic element. The magnetic element is programmed by write currents driven through the magnetic element in a first or second direction. In one aspect, the method and system include providing a voltage supply and a voltage pump coupled with the magnetic storage cells and the voltage supply. The voltage supply provides a supply voltage. The voltage pump provides to the selection device a bias voltage having a magnitude greater than the supply voltage. Another aspect includes providing a silicon on oxide transistor as the selection device. Another aspect includes providing to the body of the transistor a body bias voltage that is a first voltage when the transistor is off and a second voltage when the transistor is on.Type: GrantFiled: February 24, 2006Date of Patent: April 7, 2009Assignee: Grandis, Inc.Inventors: Eugene Youjun Chen, Yiming Huai
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Patent number: 7508938Abstract: The present invention increases the difficulty of reverse engineering sensitive information protected by an encryption algorithm by increasing the difficulty associated with tracing the code that generates the key or the encryption algorithm. This is accomplished by generating the key, used to encrypt and decrypt the sensitive information, as a function of the program instruction values of the procedures used to generate the key and perform the decryption of the sensitive information. Thus, if the key generation code or the decryption code is modified (such as (but without limitation) by placement of a breakpoint, a trace function, or a halt instruction in the code) the resulting key will be different from the key used to encrypt the sensitive information and the decryption attempt will fail.Type: GrantFiled: January 5, 2004Date of Patent: March 24, 2009Assignee: Sigma Designs, Inc.Inventor: Michael Ignaszewski
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Patent number: 7502249Abstract: A method and system for providing and utilizing a magnetic memory are described. The magnetic memory includes a plurality of magnetic storage cells. Each magnetic storage cell includes magnetic element(s) programmable due to spin transfer when a write current is passed through the magnetic element(s) and selection device(s). The method and system include driving a first current in proximity to but not through the magnetic element(s) of a portion of the magnetic storage cells. The first current generates a magnetic field. The method and system also include driving a second current through the magnetic element(s) of the portion of the magnetic storage cells. The first and second currents are preferably both driven through bit line(s) coupled with the magnetic element(s). The first and second currents are turned on at a start time. The second current and the magnetic field are sufficient to program the magnetic element(s).Type: GrantFiled: April 17, 2007Date of Patent: March 10, 2009Assignees: Grandis, Inc., Renesas Technology Corp.Inventor: Yunfei Ding
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Magnetic elements with spin engineered insertion layers and MRAM devices using the magnetic elements
Patent number: 7495303Abstract: A method and system include providing a single pinned layer, a free layer, and a spacer layer between the pinned and free layers. The spacer layer is nonmagnetic. The magnetic element is configured to allow the free layer to be switched due to spin transfer when a write current is passed through the magnetic element. The free layer is a simple free layer. In one aspect, the method and system include providing a spin engineered layer adjacent to the free layer. The spin engineered layer is configured to more strongly scatter majority electrons than minority electrons. In another aspect, at least one of the pinned, free, and spacer layers is a spin engineered layer having an internal spin engineered layer configured to more strongly scatter majority electrons than minority electrons. In this aspect, the magnetic element may include another pinned layer and a barrier layer between the free and pinned layers.Type: GrantFiled: January 29, 2007Date of Patent: February 24, 2009Assignee: Grandis, Inc.Inventors: Zhitao Diao, Yiming Huai, Thierry Valet, Paul P. Nguyen, Mahendra Pakala -
Patent number: 7493577Abstract: A method and system is provided for automatically recognizing geometric points of features in a target design for OPC mask quality calculation. For each feature in the target design, x, y points comprising the feature are traversed and each neighboring pair of points is connected to define respective segments, wherein a set of contiguous segments form a step if the x values of the segments/points all increase or decrease and the same is true for the y values. Physical characteristics of the segments of the respective features are determined by comparing lengths of the segments to one another and to threshold values. Locations of quality measuring points are then determined along particular ones of the segments based on the physical characteristics.Type: GrantFiled: December 1, 2004Date of Patent: February 17, 2009Assignee: LSI CorporationInventors: Sergei Rodin, Stanislav V. Aleshin, Ilya Golubtsov
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Patent number: 7489541Abstract: A method and system for providing a magnetic element are disclosed. The method and system include providing a pinned layer, providing a spacer layer, and providing a free layer. The free layer is ferrimagnetic and includes at least one of a conductive ferrite, a garnet, a ferrimagnetic alloy excluding a rare earth, a heavy rare-earth-transition metal alloy, a half-metallic ferrimagnetic, and a bilayer. The bilayer includes a rare earth-transition metal alloy layer and a spin current enhancement layer. The magnetic element is configured to allow the free layer to be switched due to spin transfer when a write current is passed through the magnetic element.Type: GrantFiled: August 23, 2005Date of Patent: February 10, 2009Assignee: Grandis, Inc.Inventors: Mahendra Pakala, Eugene Youjun Chen, Yiming Huai
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Patent number: 7486552Abstract: A method and system for providing a magnetic element is described. The magnetic element includes a first pinned layer, a first spacer layer, a free layer, a second spacer layer, and a second pinned layer. The first and second pinned layers have first and magnetizations oriented in first and second directions, respectively. The first and second spacer layers are nonferromagnetic. The first and second spacer layers are between the free layer and the first and second pinned layers, respectively.Type: GrantFiled: June 15, 2007Date of Patent: February 3, 2009Assignee: Grandis, Inc.Inventors: Dmytro Apalkov, Zhanjie Li
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Patent number: 7486551Abstract: A method and system for providing a magnetic element is described. The magnetic element includes a pinned layer, a spacer layer, and a free layer. The spacer layer is nonferromagnetic and resides between the pinned layer and the free layer. The free layer includes a first magnetic layer and at least one of a second magnetic layer and an intermediate layer. The intermediate layer would reside between the first and second magnetic layers. The free layer also includes at least one domain wall therein during switching. In addition, the magnetic element is configured to allow the free layer to be switched at least in part due to spin transfer when a write current is passed through the magnetic element.Type: GrantFiled: April 3, 2007Date of Patent: February 3, 2009Assignee: Grandis, Inc.Inventors: Zhanjie Li, Shengyuan Wang
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Patent number: 7483860Abstract: A method and system for managing licenses over a network is disclosed. The method and system include establishing a user account on a server coupled to the network from a user computer, and allowing the user to upload licenses used by the computer to the server. The server then associates the uploaded licenses with the user account, and allows the user to log into the user account to review the account and associated uploaded licenses. The user may also retrieve the licenses for download to the user computer in the case of a lost or damaged license.Type: GrantFiled: March 8, 2002Date of Patent: January 27, 2009Assignee: Pace Anti-PiracyInventors: Paul A. Cronce, Andrew A. Kirk
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Patent number: 7467401Abstract: Authenticating a user includes providing a plurality of questions based on user related information stored in at least one data source, wherein none of the plurality of questions is password related. At least one of the plurality of questions is presented to the user in response to receiving a request from the user to access one or more protected resources. Access is granted to the authorized set of protected resources if the user correctly answers each of the at least one questions presented. According to the present invention, the user's identity is authenticated without requiring the user to provide a password or biometric data, and without requiring the user to enroll prior to access.Type: GrantFiled: August 12, 2004Date of Patent: December 16, 2008Assignee: Avatier CorporationInventor: Nelson A. Cicchitto
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Patent number: 7424422Abstract: The invention is a method and system for applying more effects to voices in an input sound than is capable of being supported by a sound processor. Aspects of the invention include identifying at least one of the voices of the input sound as a voice bus channel; and during processing of the input sound, inputting and adding sound that was mixed from outputs of previously processed voices to the voice bus channel to create a summed result. An effect specified for the voice bus channel is then applied to the summed result, thereby applying the effect to the previous the process voices.Type: GrantFiled: August 19, 2004Date of Patent: September 9, 2008Assignee: LSI CorporationInventor: Ray Graham, Jr.
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Patent number: 7407574Abstract: A rooftop drainage device is provided for use in protecting rooftop drainpipes from clogging. An exemplary embodiment of the drainage device includes a filter comprising at least three sides, wherein at least one of the sides includes a plurality of apertures for allowing liquid to pass-through the at least one side into the drainpipe, while filtering debris; and an object receptacle mounted to a top of the filter for removably retaining an object, wherein a weight of the object holds the rooftop drainage device on the rooftop and over the drainpipe without need for mechanical fasteners.Type: GrantFiled: March 1, 2006Date of Patent: August 5, 2008Inventor: Donnell Robinson
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Patent number: 7406675Abstract: A method and system for improving aerial image simulation speeds. The method includes receiving a mask; generating a matrix of node values based on the mask, wherein each node value corresponds to a node of a plurality of nodes in a lattice; performing a one-dimensional (1-D) approximation of a plurality of first approximation values at corresponding first approximation points between pairs of nodes of the plurality of nodes; performing a two-dimensional (2-D) approximation of second approximation values at corresponding second approximation points between pairs of first approximation points, wherein Chebyshev polynomials are used to approximate the first approximation values and the second approximation values. According to the method and system disclosed herein, approximating values using Chebyshev polynomials results in high-resolution aerial images that are generated at faster speeds.Type: GrantFiled: December 16, 2005Date of Patent: July 29, 2008Assignee: LSI CorporationInventors: Sergey V. Uzhakov, Stanislav V. Aleshin, Marina Medvedeva