Patents by Inventor Fred Chen

Fred Chen 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).

  • Patent number: 11038428
    Abstract: In an aspect, the present invention provides a high frequency switching power converter. The high frequency switching power converter may include a plurality of soft-switchable power cells flexibly connected to receive an input signal in series and provide an output. The high frequency switching power converter may further include a controller for configuring the flexible connection and for controlling the power cells to receive the input signal. In an embodiment, each of the plurality of power cells may be separately controllable by the controller. Further, a portion of the plurality of power cells may be arranged with parallel outputs. Additionally, at least one of the plurality of cells may include one or more switched capacitors. In another embodiment, the at least one of the plurality of cells may include at least one switched capacitor and a DC/DC regulating converter.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: June 15, 2021
    Assignee: FINsix Corporation
    Inventors: Anthony Sagneri, George Hwang, Justin Burkhart, Fred Chen
  • Patent number: 10863387
    Abstract: A method is provided in one example and includes receiving at least one first input indicating at least one network condition associated with a first user device having a user associated therewith. The first user device has a first bearer channel established between the first user device and a gateway, and the first bearer channel has a first quality of service level. The method further includes determining whether to modify the first user device to a second quality of service level based upon the received at least one first input, and sending a first request to a first network element instructing the first network element to modify the first user device to the second quality of service level.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: December 8, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Arun C. Alex, Gibson Soon Teck Ang, Kevin D. Shatzkamer, Ramanathan Jagadeesan, Fred Chen, Rajesh P. Velandy, Wenxing Zheng
  • Publication number: 20200259420
    Abstract: In an aspect, the present invention provides a high frequency switching power converter. The high frequency switching power converter may include a plurality of soft-switchable power cells flexibly connected to receive an input signal in series and provide an output. The high frequency switching power converter may further include a controller for configuring the flexible connection and for controlling the power cells to receive the input signal. In an embodiment, each of the plurality of power cells may be separately controllable by the controller. Further, a portion of the plurality of power cells may be arranged with parallel outputs. Additionally, at least one of the plurality of cells may include one or more switched capacitors. In another embodiment, the at least one of the plurality of cells may include at least one switched capacitor and a DC/DC regulating converter.
    Type: Application
    Filed: September 16, 2019
    Publication date: August 13, 2020
    Applicant: FINsix Corporation
    Inventors: Anthony Sagneri, George Hwang, Justin Burkhart, Fred Chen
  • Patent number: 10720832
    Abstract: Circuits comprising: a capacitor; switches that, when State0, couple the capacitor in parallel with the load and, when State1, couple the capacitor in series with the load, wherein a first of the switches connects the capacitor to ground when in State0 and wherein a second of the switches connects the capacitor to an input voltage when in State1; a third switch, wherein a first side of the third switch is connected to the capacitor identically to one of the first switch and the second switch (OFWSW), wherein the third switch switches identically to the OFWSW, wherein the third switch is smaller than the OFWSW; a first resistor connected to the second side of the third switch; and a hardware processor that measures a current flowing through the first resistor and estimates the current provided to the load based on the current measured as flowing through the first resistor.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: July 21, 2020
    Assignee: Lion Semiconductor Inc.
    Inventors: Hans Meyvaert, Thomas Li, Fred Chen, John Crossley, Zhipeng Li, Bertram J. Rodgers
  • Publication number: 20200144908
    Abstract: Circuits comprising: a capacitor; switches that, when State0, couple the capacitor in parallel with the load and, when State1, couple the capacitor in series with the load, wherein a first of the switches connects the capacitor to ground when in State0 and wherein a second of the switches connects the capacitor to an input voltage when in State1; a third switch, wherein a first side of the third switch is connected to the capacitor identically to one of the first switch and the second switch (OFWSW), wherein the third switch switches identically to the OFWSW, wherein the third switch is smaller than the OFWSW; a first resistor connected to the second side of the third switch; and a hardware processor that measures a current flowing through the first resistor and estimates the current provided to the load based on the current measured as flowing through the first resistor.
    Type: Application
    Filed: January 31, 2019
    Publication date: May 7, 2020
    Inventors: Hans Meyvaert, Thomas Li, Fred Chen, John Crossley, Zhipeng Li, Bertram J. Rodgers
  • Patent number: 10144591
    Abstract: Robotic arms or manipulators can be used to toss inventory items within an inventory system. Tossing strategies for the robotic arms may include information about how a grasped item is to be moved and released by a robotic arm to achieve a trajectory for moving the item to a receiving location. A tossing strategy may also use a trajectory that avoids time and/or space reserved for a trajectory of another tossed item. The receiving location can include surfaces and/or other features that can be manipulated for receiving the item based on one or more characteristics of the tossed item and/or a trajectory of the tossed item.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: December 4, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Jeremiah David Brazeau, Andrew M. Sweeney, Henry David Garcia, Fred Chen, Brian Michael Lusignan
  • Publication number: 20180319601
    Abstract: Robotic arms or manipulators can be used to toss inventory items within an inventory system. Tossing strategies for the robotic arms may include information about how a grasped item is to be moved and released by a robotic arm to achieve a trajectory for moving the item to a receiving location. A tossing strategy may also use a trajectory that avoids time and/or space reserved for a trajectory of another tossed item. The receiving location can include surfaces and/or other features that can be manipulated for receiving the item based on one or more characteristics of the tossed item and/or a trajectory of the tossed item.
    Type: Application
    Filed: July 16, 2018
    Publication date: November 8, 2018
    Inventors: Jeremiah David Brazeau, Andrew M. Sweeney, Henry David Garcia, Fred Chen, Brian Michael Lusignan
  • Patent number: 10023393
    Abstract: Robotic arms or manipulators can be used to toss inventory items within an inventory system. Tossing strategies for the robotic arms may include information about how a grasped item is to be moved and released by a robotic arm to achieve a trajectory for moving the item to a receiving location. A tossing strategy may also use a trajectory that avoids time and/or space reserved for a trajectory of another tossed item. The receiving location can include surfaces and/or other features that can be manipulated for receiving the item based on one or more characteristics of the tossed item and/or a trajectory of the tossed item.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: July 17, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Jeremiah David Brazeau, Andrew M. Sweeney, Henry David Garcia, Fred Chen, Brian Michael Lusignan
  • Patent number: 9926138
    Abstract: An item that is moving along a moving surface of an inventory conveyance system may be identified. An orientation of the item with respect to the moving surface may be determined based on sensing information that describes the item and a portion of the moving surface surrounding the item. A removal strategy for operating a robotic arm to remove the item from the moving surface may be determined based at least in part on the item and the orientation. The removal strategy may include a trajectory for the robotic arm to follow as part of removing the item from the moving surface.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: March 27, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Jeremiah David Brazeau, Andrew M. Sweeney, Henry David Garcia, Fred Chen, Brian Michael Lusignan
  • Publication number: 20170088360
    Abstract: Robotic arms or manipulators can be used to toss inventory items within an inventory system. Tossing strategies for the robotic arms may include information about how a grasped item is to be moved and released by a robotic arm to achieve a trajectory for moving the item to a receiving location. A tossing strategy may also use a trajectory that avoids time and/or space reserved for a trajectory of another tossed item. The receiving location can include surfaces and/or other features that can be manipulated for receiving the item based on one or more characteristics of the tossed item and/or a trajectory of the tossed item.
    Type: Application
    Filed: September 29, 2015
    Publication date: March 30, 2017
    Inventors: Jeremiah David Brazeau, Andrew M. Sweeney, Henry David Garcia, Fred Chen, Brian Michael Lusignan
  • Patent number: 9401646
    Abstract: In an aspect, the present invention provides a high frequency switching power converter. The high frequency switching power converter may include a plurality of soft-switchable power cells flexibly connected to receive an input signal in series and provide an output. The high frequency switching power converter may further include a controller for configuring the flexible connection and for controlling the power cells to receive the input signal. In an embodiment, each of the plurality of power cells may be separately controllable by the controller. Further, a portion of the plurality of power cells may be arranged with parallel outputs. Additionally, at least one of the plurality of cells may include one or more switched capacitors. In another embodiment, the at least one of the plurality of cells may include at least one switched capacitor and a DC/DC regulating converter.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: July 26, 2016
    Assignee: FINsix Corporation
    Inventors: Anthony Sagneri, George Hwang, Justin Burkhart, Fred Chen
  • Patent number: 9318958
    Abstract: A method of on/off modulation of a very high frequency switching cell-based power converter includes receiving an input voltage signal to be applied to a plurality of series stacked very high frequency power converter cells for producing an output voltage and/or current, and controlling a portion of the plurality of series stacked high frequency power converter cells through on/off modulation of at least one of the plurality of series stacked high frequency power converter cells to control the output current and/or the output voltage.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: April 19, 2016
    Assignee: FINsix Corporation
    Inventors: Anthony D. Sagneri, Jae-Won George Hwang, Justin Michael Burkhart, Fred Chen
  • Patent number: 9184660
    Abstract: In an aspect, the present invention provides a high frequency switching power converter. The high frequency switching power converter may include a plurality of soft-switchable power cells flexibly connected to receive an input signal in series and provide an output. The high frequency switching power converter may further include a controller for configuring the flexible connection and for controlling the power cells to receive the input signal. In an embodiment, each of the plurality of power cells may be separately controllable by the controller. Further, a portion of the plurality of power cells may be arranged with parallel outputs. Additionally, at least one of the plurality of cells may include one or more switched capacitors. In another embodiment, the at least one of the plurality of cells may include at least one switched capacitor and a DC/DC regulating converter.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: November 10, 2015
    Assignee: FINsix Corporation
    Inventors: Anthony D. Sagneri, Jae-Won George Hwang, Justin Michael Burkhart, Fred Chen
  • Publication number: 20150289167
    Abstract: A method is provided in one example and includes receiving at least one first input indicating at least one network condition associated with a first user device having a user associated therewith. The first user device has a first bearer channel established between the first user device and a gateway, and the first bearer channel has a first quality of service level. The method further includes determining whether to modify the first user device to a second quality of service level based upon the received at least one first input, and sending a first request to a first network element instructing the first network element to modify the first user device to the second quality of service level.
    Type: Application
    Filed: October 2, 2013
    Publication date: October 8, 2015
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Arun C. Alex, Gibson Soon Teck Ang, Kevin D. Shatzkamer, Ramanathan Jagadeesan, Fred Chen, Rajesh P. Velandy, Wenxing Zheng
  • Publication number: 20150278296
    Abstract: A method is provided in one example and includes receiving data from a mobile network entity, parsing the data to determine a first identity and first attribute information associated with the first identity, determining whether the first identity exists in a database, storing the first identity in the database if the first identity does not exist in the database, and storing the first attribute information in association with the first identity in the database. The method further includes determining whether there is at least one identity related to the first identity in the database, and updating each of the related identities with the first attribute information when it is determined that there is at least one identity.
    Type: Application
    Filed: October 2, 2013
    Publication date: October 1, 2015
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Arun C. Alex, Rajesh P. Velandy, Kevin D. Shatzkamer, Ramanathan Jagadeesan, Fred Chen, Wenxing Zheng
  • Publication number: 20150263627
    Abstract: In an aspect, the present invention provides a high frequency switching power converter. The high frequency switching power converter may include a plurality of soft-switchable power cells flexibly connected to receive an input signal in series and provide an output. The high frequency switching power converter may further include a controller for configuring the flexible connection and for controlling the power cells to receive the input signal. In an embodiment, each of the plurality of power cells may be separately controllable by the controller. Further, a portion of the plurality of power cells may be arranged with parallel outputs. Additionally, at least one of the plurality of cells may include one or more switched capacitors. In another embodiment, the at least one of the plurality of cells may include at least one switched capacitor and a DC/DC regulating converter.
    Type: Application
    Filed: May 13, 2015
    Publication date: September 17, 2015
    Applicant: FINsix Corporation
    Inventors: Anthony Sagneri, George Hwang, Justin Burkhart, Fred Chen
  • Publication number: 20150200601
    Abstract: In an aspect, the present invention provides a high frequency switching power converter. The high frequency switching power converter may include a plurality of soft-switchable power cells flexibly connected to receive an input signal in series and provide an output. The high frequency switching power converter may further include a controller for configuring the flexible connection and for controlling the power cells to receive the input signal. In an embodiment, each of the plurality of power cells may be separately controllable by the controller. Further, a portion of the plurality of power cells may be arranged with parallel outputs. Additionally, at least one of the plurality of cells may include one or more switched capacitors. In another embodiment, the at least one of the plurality of cells may include at least one switched capacitor and a DC/DC regulating converter.
    Type: Application
    Filed: March 26, 2015
    Publication date: July 16, 2015
    Applicant: FINsix Corporation
    Inventors: Anthony Sagneri, George Hwang, Justin Burkhart, Fred Chen
  • Publication number: 20140327375
    Abstract: According to various embodiments of the invention, an LED lighting system is providing having a replaceable driver module. In some embodiments, the replaceable driver module comprises a component that is physically attachable to an LED illumination module, whereby the attached components have a combined physical profile dimensioned for installation in a pre-existing light fixture. In further embodiments, the combined system's dimensions allow it to be installed in pre-existing fluorescent fixtures without requiring rewiring of the fixtures. In some embodiments, the LED driver module may be configured to condition power received from a fluorescent light ballast to drive the LEDs such that a pre-existing fluorescent ballast does not need to be removed. In other embodiments, the LED driver may be configured to condition main power such that a pre-existing fluorescent ballast may be removed.
    Type: Application
    Filed: July 15, 2014
    Publication date: November 6, 2014
    Applicant: PACIFIC DYNAMIC
    Inventors: STEVEN W. CARLIN, BOB CHEN, FRED CHEN, JEROME LEGERTON
  • Patent number: 8844546
    Abstract: Embodiments of the present invention generally relate to an apparatus and a method for cleaning a semiconductor substrate after a polishing process. Particularly, embodiments of the present invention relates to an apparatus and method for cleaning a substrate using pressurized fluid. One embodiment of the present invention comprises two rollers to support and rotate a substrate in a substantially vertical orientation, a pressure wheel to apply a force to engage the substrate with the two rollers, and a swinging nozzle configured to dispense a pressurized fluid towards the substrate.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: September 30, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Hui (Fred) Chen, Allen L. D'Ambra
  • Patent number: 8848399
    Abstract: A VHF switching power converter comprising one or more VHF switching frequency resonant synchronous rectifiers receives an output from an inverter and delivers a DC output to a load. The power converter includes a controller for controlling at least one of the one or more VHF switching frequency resonant synchronous rectifiers based on feedback derived from a waveform of at least one of the rectifiers. The controller controls a phase angle of at least one of the rectifiers with a delay locked loop. The power converter delivers a regulated DC output via adjustment of a phase shift between at least one of the one or more rectifiers and the inverter.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: September 30, 2014
    Assignee: FINsix Corporation
    Inventors: Anthony D. Sagneri, Jae-Won George Hwang, Justin Michael Burkhart, Fred Chen