Patents by Inventor Nhat M. Nguyen
Nhat M. Nguyen 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: 11886375Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: GrantFiled: May 23, 2022Date of Patent: January 30, 2024Assignee: RAMBUS INC.Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Publication number: 20230144498Abstract: Various aspects related to methods, systems, and computer readable media for simulating and controlling a physical system, such as, for example, a greenhouse. A computer-implemented method can include forming a computational graph, wherein a structure of the computational graph is based on one or more physical processes in the physical system, receiving, from one or more sensors, measured values of one or more observed states of the physical system, setting initial values of one or more unobserved states of the physical system, receiving values of one or more control inputs a for the physical system, and iteratively simulating the physical system on a computer using x, y and a as simulation inputs to the computational graph.Type: ApplicationFiled: November 9, 2021Publication date: May 11, 2023Inventors: Kenneth Tran, Nhat M. Nguyen
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Publication number: 20230051578Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: ApplicationFiled: May 23, 2022Publication date: February 16, 2023Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Patent number: 11341079Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: GrantFiled: October 21, 2019Date of Patent: May 24, 2022Assignee: RAMBUS INC.Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Publication number: 20200159688Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: ApplicationFiled: October 21, 2019Publication date: May 21, 2020Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Patent number: 10452601Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: GrantFiled: April 6, 2018Date of Patent: October 22, 2019Assignee: RAMBUS INC.Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Publication number: 20180329859Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: ApplicationFiled: April 6, 2018Publication date: November 15, 2018Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Patent number: 9940299Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: GrantFiled: December 28, 2016Date of Patent: April 10, 2018Assignee: RAMBUS INC.Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Publication number: 20170177540Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: ApplicationFiled: December 28, 2016Publication date: June 22, 2017Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Patent number: 9569396Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: GrantFiled: November 3, 2015Date of Patent: February 14, 2017Assignee: Rambus Inc.Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Publication number: 20160124895Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: ApplicationFiled: November 3, 2015Publication date: May 5, 2016Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Patent number: 9178647Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: GrantFiled: October 6, 2014Date of Patent: November 3, 2015Assignee: RAMBUS INC.Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Publication number: 20150092869Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: ApplicationFiled: October 6, 2014Publication date: April 2, 2015Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Patent number: 8855217Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: GrantFiled: October 1, 2012Date of Patent: October 7, 2014Assignee: Rambus Inc.Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Publication number: 20130148709Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: ApplicationFiled: October 1, 2012Publication date: June 13, 2013Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Patent number: 8279948Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined errorrate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: GrantFiled: December 10, 2007Date of Patent: October 2, 2012Assignee: Rambus Inc.Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Publication number: 20100103994Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined errorrate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.Type: ApplicationFiled: December 10, 2007Publication date: April 29, 2010Inventors: Yohan U. Frans, Hae-Chang Lee, Brian S. Leibowitz, Simon Li, Nhat M. Nguyen
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Patent number: 7308065Abstract: A receiver adapted to be coupled to a data bus and configured to receive data in accordance with a receive clock includes first and second delay-locked loops. The first delay-locked loop is configured to generate a plurality of phase vectors from a first reference clock, and the second delay-locked loop is coupled to the first delay-locked loop and configured to generate the receive clock from at least one phase vector selected from the plurality of phase vectors and a second reference clock.Type: GrantFiled: April 18, 2006Date of Patent: December 11, 2007Assignee: Rambus Inc.Inventors: Kevin S. Donnelly, Pak Shing Chau, Mark A. Horowitz, Thomas H. Lee, Mark G. Johnson, Benedict C. Lau, Leung Yu, Bruno W. Garlepp, Yiu-Fai Chan, Jun Kim, Chanh Vi Tran, Donald C. Stark, Nhat M. Nguyen
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Patent number: 7248086Abstract: A loop filter of a compensating phase-locked loop contains capacitors formed from transistors with thin gate oxide dielectric layers. Leakage current leaks through the capacitors. To avoid jitter in the output signal of the phase-locked loop that would otherwise be caused by the leakage current, a leakage compensation circuit is provided. The leakage compensation circuit of a first embodiment replicates the leakage current using a replication capacitor and a current mirror. The voltage across the replication capacitor is proportional to the control voltage of a voltage-controlled oscillator of the compensating phase-locked loop. A second embodiment generates the compensation current by controlling the voltage on the gate of a transistor. The gate voltage depends on charge added and subtracted by a charge pump in addition to the charge pumps in the loop filter. A third embodiment applies a leakage compensation circuit to a delay locked loop.Type: GrantFiled: March 17, 2005Date of Patent: July 24, 2007Assignee: Rambus, Inc.Inventors: Yohan Frans, Nhat M. Nguyen
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Patent number: 7183805Abstract: Multi-mode signal drivers with a single output circuit that may be controlled using a mode select input and that may include a common mode (CM) voltage compensation mechanism are described. In a first exemplary implementation, a multi-mode output driver is adapted to drive signals from a single output circuit according to at least two modes, such as a current mode logic (CML) signaling mode and a low voltage differential signaling (LVDS) mode. In a second exemplary implementation, a circuit comprises a quasi-LVDS output driver in which a differential amplifier circuit is connected in series with an adjustable resistive element and a programmable current source. In a third exemplary implementation, a CM voltage of an output driver circuit changes with changes to a programmable bias current. To compensate, a feedback mechanism provides a compensation signal to a variable resistive element of the output driver circuit to maintain a desired CM voltage.Type: GrantFiled: March 20, 2006Date of Patent: February 27, 2007Assignee: Rambus Inc.Inventors: Yueyong Wang, Barry W. Daly, Nhat M. Nguyen, Yohan U. Frans