Patents by Inventor Renxin Xia
Renxin Xia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9274980Abstract: A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.Type: GrantFiled: April 7, 2014Date of Patent: March 1, 2016Assignee: Altera CorporationInventors: Renxin Xia, Juju Joyce, Nitin Prasad, Kerry Veenstra, Keith Duwel
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Publication number: 20140223034Abstract: A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.Type: ApplicationFiled: April 7, 2014Publication date: August 7, 2014Applicant: Altera CorporationInventors: Renxin Xia, Juju Joyce, Nitin Prasad, Kerry Veenstra, Keith Duwel
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Patent number: 8751998Abstract: Disclosed is a method of simulating partial reconfiguration of a programmable logic device (PLD). A wrapper module is incorporated into a logic description that may be implemented in a PLD. The wrapper module represents a first logic design. In response to receiving a parameter, the wrapper module changes to represent a second logic design. According to various embodiments, the logic description is a simulatable source file. The simulatable source file is a source file that is used by a simulation program to simulate partial reconfiguration of the logic design. The wrapper module of the simulatable source file receives a run-time parameter. In various embodiments, the logic description is a synthesizable source file. The synthesizable source file is a source file that is used by a synthesis tool to compile the source file into hardware. The wrapper module of the synthesizable source receives a compile-time parameter.Type: GrantFiled: February 8, 2012Date of Patent: June 10, 2014Assignee: Altera CorporationInventors: David W. Mendel, Marwan A. Khalaf, Renxin Xia
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Patent number: 8719458Abstract: A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.Type: GrantFiled: September 12, 2013Date of Patent: May 6, 2014Assignee: Altera CorporationInventors: Renxin Xia, Juju Joyce, Nitin Prasad, Kerry Veenstra, Keith Duwel
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Patent number: 8664975Abstract: Systems and methods for flexibly configuring one or more intellectual property (IP) blocks of a programmable logic device are described. The methods include configuring and operating a first portion of the programmable logic device before configuring a remaining portion of the programmable logic device. By operating the first portion before configuring the remaining portions, various timing constraints including power-up timing constraints can be met by the programmable logic device.Type: GrantFiled: April 13, 2011Date of Patent: March 4, 2014Assignee: Altera CorporationInventors: Yi Gao, Renxin Xia, Juin-Yeu Lu
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Publication number: 20140015565Abstract: A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.Type: ApplicationFiled: September 12, 2013Publication date: January 16, 2014Applicant: ALTERA CORPORATIONInventors: Renxin Xia, Juju Joyce, Nitin Prasad, Kerry Veenstra, Keith Duwel
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Patent number: 8554959Abstract: A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.Type: GrantFiled: May 1, 2012Date of Patent: October 8, 2013Assignee: Altera CorporationInventors: Renxin Xia, Juju Chacko Joyce, Nitin Prasad, Kerry Veenstra, Keith Duwel
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Publication number: 20130007687Abstract: Disclosed is a method of simulating partial reconfiguration of a programmable logic device (PLD). A wrapper module is incorporated into a logic description that may be implemented in a PLD. The wrapper module represents a first logic design. In response to receiving a parameter, the wrapper module changes to represent a second logic design. According to various embodiments, the logic description is a simulatable source file. The simulatable source file is a source file that is used by a simulation program to simulate partial reconfiguration of the logic design. The wrapper module of the simulatable source file receives a run-time parameter. In various embodiments, the logic description is a synthesizable source file. The synthesizable source file is a source file that is used by a synthesis tool to compile the source file into hardware. The wrapper module of the synthesizable source receives a compile-time parameter.Type: ApplicationFiled: February 8, 2012Publication date: January 3, 2013Applicant: ALTERA CORPORATIONInventors: David W. Mendel, Marwan A. Khalaf, Renxin Xia
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Publication number: 20120213017Abstract: A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.Type: ApplicationFiled: May 1, 2012Publication date: August 23, 2012Applicant: ALTERA CORPORATIONInventors: Renxin Xia, Juju Chacko Joyce, Nitin Prasad, Kerry Veenstra, Keith Duwel
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Patent number: 8190787Abstract: A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.Type: GrantFiled: December 3, 2009Date of Patent: May 29, 2012Assignee: Altera CorporationInventors: Renxin Xia, Juju Chacko Joyce, Nitin Prasad, Kerry Veenstra, Keith Duwel
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Publication number: 20100082891Abstract: A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.Type: ApplicationFiled: December 3, 2009Publication date: April 1, 2010Applicant: Altera CorporationInventors: Renxin Xia, Juju Chacko Joyce, Nitin Prasad, Kerry Veenstra, Keith Duwel
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Patent number: 7650438Abstract: A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.Type: GrantFiled: February 27, 2008Date of Patent: January 19, 2010Assignee: Altera CorporationInventors: Renxin Xia, Juju Chacko Joyce, Nitin Prasad, Kerry Veenstra, Keith Duwel
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Patent number: 7574533Abstract: A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.Type: GrantFiled: February 27, 2008Date of Patent: August 11, 2009Assignee: Altera CorporationInventors: Renxin Xia, Juju Chacko Joyce, Nitin Prasad, Kerry Veenstra, Keith Duwel
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Patent number: 7490233Abstract: Techniques for actively configuring a programmable circuit using configuration data stored in an external memory are provided. The programmable circuit attempts to read a device identification code from an external memory device using a read instruction. The programmable circuit then attempts to identify the external memory device by matching the identification code returned from the external memory with a code in a first predefined list. A match indicates that the programmable circuit has hardware that can generate instructions that the memory device can recognize. After the programmable circuit identifies the memory device, the programmable circuit sends instructions to the external memory device according to a predefined protocol understood by the memory device. The programmable circuit can also compare a device identification code for a particular memory device with a second list of identification codes to determine whether a user wants the programmable circuit to support that memory device.Type: GrantFiled: March 7, 2006Date of Patent: February 10, 2009Assignee: Alter CorporationInventor: Renxin Xia
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Publication number: 20080157813Abstract: A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.Type: ApplicationFiled: February 27, 2008Publication date: July 3, 2008Applicant: Altera CorporationInventors: Renxin Xia, Juju Chacko Joyce, Nitin Prasad, Kerry Veenstra, Keith Duwel
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Publication number: 20080143378Abstract: A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.Type: ApplicationFiled: February 27, 2008Publication date: June 19, 2008Applicant: Altera CorporationInventors: Renxin Xia, Juju Chacko Joyce, Nitin Prasad, Kerry Veenstra, Keith Duwel
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Patent number: 7356620Abstract: A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.Type: GrantFiled: June 10, 2003Date of Patent: April 8, 2008Assignee: Altera CorporationInventors: Renxin Xia, Juju Chacko Joyce, Nitin Prasad, Kerry Veenstra, Keith Duwel
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Patent number: 7253657Abstract: A programmable logic device (PLD) includes configuration circuitry. The configuration circuitry is adapted to receive serial configuration data from a configuration device. The configuration circuitry is further adapted to program a function of the PLD without using an input buffer to store the configuration data.Type: GrantFiled: December 15, 2003Date of Patent: August 7, 2007Assignee: Altera CorporationInventors: Mukunda Krishnappa, Keith Duwel, Renxin Xia
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Patent number: 7043630Abstract: Techniques for actively configuring a programmable circuit using configuration data stored in an external memory are provided. The programmable circuit attempts to read a device identification code from an external memory device using a read instruction. The programmable circuit then attempts to identify the external memory device by matching the identification code returned from the external memory with a code in a first predefined list. A match indicates that the programmable circuit has hardware that can generate instructions that the memory device can recognize. After the programmable circuit identifies the memory device, the programmable circuit sends instructions to the external memory device according to a predefined protocol understood by the memory device. The programmable circuit can also compare a device identification code for a particular memory device with a second list of identification codes to determine whether a user wants the programmable circuit to support that memory device.Type: GrantFiled: April 28, 2003Date of Patent: May 9, 2006Assignee: Altera CorporationInventor: Renxin Xia
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Publication number: 20060038586Abstract: A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.Type: ApplicationFiled: June 10, 2003Publication date: February 23, 2006Inventors: Renxin Xia, Juju Joyce, Nitin Prasad, Kerry Veenstra, Keith Duwel