Patents by Inventor Jae-sun Seo

Jae-sun Seo 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: 8856055
    Abstract: A reconfigurable neural network circuit is provided. The reconfigurable neural network circuit comprises an electronic synapse array including multiple synapses interconnecting a plurality of digital electronic neurons. Each neuron comprises an integrator that integrates input spikes and generates a signal when the integrated inputs exceed a threshold. The circuit further comprises a control module for reconfiguring the synapse array. The control module comprises a global final state machine that controls timing for operation of the circuit, and a priority encoder that allows spiking neurons to sequentially access the synapse array.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: October 7, 2014
    Assignee: International Business Machines Corporation
    Inventors: Bernard V. Brezzo, Leland Chang, Steven K. Esser, Daniel J. Friedman, Yong Liu, Dharmendra S. Modha, Robert K. Montoye, Bipin Rajendran, Jae-sun Seo, Jose A. Tierno
  • Publication number: 20140180987
    Abstract: Embodiments of the invention relate to a time-division multiplexed neurosynaptic module with implicit memory addressing for implementing a neural network. One embodiment comprises maintaining neuron attributes for multiple neurons and maintaining incoming firing events for different time steps. For each time step, incoming firing events for said time step are integrated in a time-division multiplexing manner. Incoming firing events are integrated based on the neuron attributes maintained. For each time step, the neuron attributes maintained are updated in parallel based on the integrated incoming firing events for said time step.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Inventors: John V. Arthur, Bernard V. Brezzo, Leland Chang, Daniel J. Friedman, Paul A. Merolla, Dharmendra S. Modha, Robert K. Montoye, Jae-sun Seo, Jose A. Tierno
  • Publication number: 20140180984
    Abstract: Embodiments of the invention relate to a time-division multiplexed neurosynaptic module with implicit memory addressing for implementing a universal substrate of adaptation. One embodiment comprises a neurosynaptic device including a memory device that maintains neuron attributes for multiple neurons. The module further includes multiple bit maps that maintain incoming firing events for different periods of delay and a multi-way processor. The processor includes a memory array that maintains a plurality of synaptic weights. The processor integrates incoming firing events in a time-division multiplexing manner. Incoming firing events are integrated based on the neuron attributes and the synaptic weights maintained.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: John V. Arthur, Bernard V. Brezzo, Leland Chang, Daniel J. Friedman, Paul A. Merolla, Dharmendra S. Modha, Robert K. Montoye, Jae-sun Seo, Jose A. Tierno
  • Publication number: 20140152381
    Abstract: A configurable-voltage converter circuit that may be CMOS and an integrated circuit chip including the converter circuit and method of operating the IC chip and circuit. A transistor totem, e.g., of 6 or more field effect transistors, PFETs and NFETs, connected (PNPNPN) between a first supply (Vin) line and a supply return line. A first switching capacitor is connected between first and second pairs of totem PN FETs pair of transistors. A second switching capacitor is connected between the second and a third pair of totem FETs. A configuration control selectively switches both third FETs off to float the connected end of the second capacitor, thereby switching voltage converter modes.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Leland Chang, Robert Montoye, Jae-sun Seo
  • Publication number: 20120317062
    Abstract: A reconfigurable neural network circuit is provided. The reconfigurable neural network circuit comprises an electronic synapse array including multiple synapses interconnecting a plurality of digital electronic neurons. Each neuron comprises an integrator that integrates input spikes and generates a signal when the integrated inputs exceed a threshold. The circuit further comprises a control module for reconfiguring the synapse array. The control module comprises a global final state machine that controls timing for operation of the circuit, and a priority encoder that allows spiking neurons to sequentially access the synapse array.
    Type: Application
    Filed: August 16, 2012
    Publication date: December 13, 2012
    Applicant: International Business Machines Corporation
    Inventors: Bernard V. BREZZO, Leland Chang, Steven K. Esser, Daniel J. Friedman, Yong Liu, Dharmendra S. Modha, Robert K. Montoye, Bipin Rajendran, Jae-sun Seo, Jose A. Tierno
  • Publication number: 20120259804
    Abstract: A reconfigurable neural network circuit is provided. The reconfigurable neural network circuit comprises an electronic synapse array including multiple synapses interconnecting a plurality of digital electronic neurons. Each neuron comprises an integrator that integrates input spikes and generates a signal when the integrated inputs exceed a threshold. The circuit further comprises a control module for reconfiguring the synapse array. The control module comprises a global final state machine that controls timing for operation of the circuit, and a priority encoder that allows spiking neurons to sequentially access the synapse array.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 11, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Bernard V. Brezzo, Leland Chang, Steven K. Esser, Daniel J. Friedman, Yong Liu, Dharmendra S. Modha, Robert K. Montoye, Bipin Rajendran, Jae-sun Seo, Jose A. Tierno
  • Patent number: 8242811
    Abstract: Some embodiments of the present invention provide techniques and systems for high-bandwidth on-chip communication. During operation, the system receives an input voltage signal which is to be transmitted over a wire in a chip. The system then generates one or more modified voltage signals from the input voltage signal. Next, the system drives each of the voltage signals (i.e., the input voltage signal and the one or more modified voltage signals) through a respective capacitor. The system then combines the output signals from the capacitors to obtain a combined voltage signal. Next, the system transmits the combined voltage signal over the wire. The transmitted signals can then be received by a hysteresis receiver which is coupled to the wire through a coupling capacitor.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: August 14, 2012
    Inventors: Jae-sun Seo, Ronald Ho, Robert J. Drost, Robert D. Hopkins
  • Publication number: 20110248750
    Abstract: Some embodiments of the present invention provide techniques and systems for high-bandwidth on-chip communication. During operation, the system receives an input voltage signal which is to be transmitted over a wire in a chip. The system then generates one or more modified voltage signals from the input voltage signal. Next, the system drives each of the voltage signals (i.e., the input voltage signal and the one or more modified voltage signals) through a respective capacitor. The system then combines the output signals from the capacitors to obtain a combined voltage signal. Next, the system transmits the combined voltage signal over the wire. The transmitted signals can then be received by a hysteresis receiver which is coupled to the wire through a coupling capacitor.
    Type: Application
    Filed: April 12, 2010
    Publication date: October 13, 2011
    Applicant: ORACLE INTERNATIONAL CORPORATION
    Inventors: Jae-sun Seo, Ronald Ho, Robert J. Drost, Robert D. Hopkins
  • Patent number: 7913101
    Abstract: A method includes: delaying an excursion of at least one signal a first number of clock phases when the excursion departs from a value in a first direction; and delaying the excursion of the at least one signal a second number of the clock phases when the excursion departs toward the value in a second direction. The first number of clock phases is different from the second number of clock phases. The at least one signal effects a plurality of succeeding excursions in substantial synchrony with a clocked signal presenting succeeding clock cycles having a plurality of the clock phases in each respective clock cycle.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: March 22, 2011
    Assignee: Intel Corporation
    Inventors: Himanshu Kaul, Jae-sun Seo, Ram K. Krishnamurthy
  • Publication number: 20090003428
    Abstract: A method includes: delaying an excursion of at least one signal a first number of clock phases when the excursion departs from a value in a first direction; and delaying the excursion of the at least one signal a second number of the clock phases when the excursion departs toward the value in a second direction. The first number of clock phases is different from the second number of clock phases. The at least one signal effects a plurality of succeeding excursions in substantial synchrony with a clocked signal presenting succeeding clock cycles having a plurality of the clock phases in each respective clock cycle.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Inventors: Himanshu Kaul, Jae-sun Seo, Ram K. Krishnamurthy