Patents by Inventor Wonjong Rhee

Wonjong Rhee 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).

  • Publication number: 20180109458
    Abstract: In accordance with embodiments disclosed herein, there are provided methods, systems, mechanisms, techniques, and apparatuses for traffic aggregation on multiple Wide Area Network (WAN) backhauls and multiple distinct Local Area Network (LAN) networks; for traffic load balancing on multiple WAN backhauls and multiple distinct LAN networks; and for performing self-healing operations utilizing multiple WAN backhauls serving multiple distinct LAN networks.
    Type: Application
    Filed: December 18, 2017
    Publication date: April 19, 2018
    Inventors: Peter Chow, Ramya Bhagavatula, Wonjong Rhee, Ardavan Maleki Tehrani, John Cioffi, Stefano Galli, Sungho Yun, Kenneth Kerpez, Marc Goldburg
  • Patent number: 9941928
    Abstract: An apparatus comprises at least one vectoring engine and a cross-connect coupled to the vectoring engine. The cross-connect is to couple with each of a plurality of customer premises equipment (CPE) devices via a respective DSL loop. An interface is to receive instructions for the cross-connect to couple the vectoring engine to a nonoverlapping subset of the CPE devices via the respective DSL loops. The interface is further to receive instructions for the vectoring engine to apply vectoring to the DSL loop via which to couple one of the CPE devices to the cross-connect.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: April 10, 2018
    Inventors: John M. Cioffi, Wonjong Rhee, George Ginis, Mark H. Brady, Peter J. Silverman
  • Publication number: 20180083880
    Abstract: In accordance with embodiments disclosed herein, there are provided methods, systems, mechanisms, techniques, and apparatuses for traffic aggregation on multiple WAN backhauls and multiple distinct LAN networks; for traffic load balancing on multiple WAN backhauls and multiple distinct LAN networks; and for performing self-healing operations utilizing multiple WAN backhauls serving multiple distinct LAN networks. For example, in one embodiment, a first Local Area Network (LAN) access device is to establish a first LAN; a second LAN access device is to establish a second LAN; a first Wide Area Network (WAN) backhaul connection is to provide the first LAN access device with WAN connectivity; a second WAN backhaul connection is to provide the second LAN access device with WAN connectivity; and a traffic aggregation unit is to form a logically bonded WAN interface over the first WAN backhaul and the second WAN backhaul. In some embodiments an optional traffic de-aggregation unit may be used.
    Type: Application
    Filed: November 10, 2017
    Publication date: March 22, 2018
    Inventors: John Cioffi, Ardavan Maleki Tehrani, Wonjong Rhee, Ramya Bhagavatula, Peter Chow, Kenneth Kerpez, Stefano Galli, Marc Goldburg, Sungho Yun
  • Patent number: 9900228
    Abstract: Described is a method and system for connectivity diagnostics in communication systems. The method comprises: querying a first communication device at a first time and a second time to determine whether a second query a first communication device at a first time to determine communication device is connected to the first communication device and to determine a value of an operational parameter at the first and second times; and determining the second communication device disconnected from the first communication device based on detecting the second communication device was connected to the first communication device at both the first time and the second time, and detecting the value of the operational parameter at the second time is inside a range of threshold values.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: February 20, 2018
    Inventors: Manikanden Balakrishnan, Ramya Bhagavatula, Carlos Garcia, Wonjong Rhee
  • Patent number: 9847944
    Abstract: In accordance with embodiments disclosed herein, there are provided methods, systems, mechanisms, techniques, and apparatuses for traffic aggregation on multiple WAN backhauls and multiple distinct LAN networks; for traffic load balancing on multiple WAN backhauls and multiple distinct LAN networks; and for performing self-healing operations utilizing multiple WAN backhauls serving multiple distinct LAN networks.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: December 19, 2017
    Inventors: Peter Chow, Ramya Bhagavatula, Wonjong Rhee, Ardavan Maleki Tehrani, John Cioffi, Stefano Galli, Sungho Yun, Kenneth Kerpez, Marc Goldburg
  • Patent number: 9819595
    Abstract: In accordance with embodiments disclosed herein, there are provided methods, systems, mechanisms, techniques, and apparatuses for traffic aggregation on multiple WAN backhauls and multiple distinct LAN networks; for traffic load balancing on multiple WAN backhauls and multiple distinct LAN networks; and for performing self-healing operations utilizing multiple WAN backhauls serving multiple distinct LAN networks. For example, in one embodiment, a first Local Area Network (LAN) access device is to establish a first LAN; a second LAN access device is to establish a second LAN; a first Wide Area Network (WAN) backhaul connection is to provide the first LAN access device with WAN connectivity; a second WAN backhaul connection is to provide the second LAN access device with WAN connectivity; and a traffic aggregation unit is to form a logically bonded WAN interface over the first WAN backhaul and the second WAN backhaul. In some embodiments an optional traffic de-aggregation unit may be used.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: November 14, 2017
    Inventors: John Cioffi, Ardavan Maleki Tehrani, Wonjong Rhee, Ramya Bhagavatula, Peter Chow, Kenneth Kerpez, Stefano Galli, Marc Goldburg, Sungho Yun
  • Patent number: 9780956
    Abstract: A method is provided which comprises: adjusting a plurality of times a transmit power to vary between a first setting and a second setting on a first Digital Subscriber Line (DSL line) to optimize energy consumption for the first DSL line; measuring or estimating a change in a performance of a second DSL line neighboring the first DSL line caused by a change in crosstalk on the second DSL line generated by the first DSL line in response to adjusting the transmit power of the first DSL line; and identifying one or more DSL lines among a plurality of DSL lines determined to safely operate in a low-power mode by identifying which of the plurality of DSL lines exhibit a crosstalk coupling to neighboring DSL lines below a specified threshold.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: October 3, 2017
    Inventors: Kenneth Kerpez, Wonjong Rhee, Georgios Ginis
  • Publication number: 20170201437
    Abstract: Described is a method and system for connectivity diagnostics in communication systems. The method comprises: querying a first communication device at a first time and a second time to determine whether a second communication device is connected to the first communication device and to determine a value of an operational parameter at the first and second times; and determining the second communication device disconnected from the first communication device based on detecting the second communication device was connected to the first communication device at both the first time and the second time, and detecting the value of the operational parameter at the second time is inside a range of threshold values. In one embodiment, the method comprises determining a link is unstable for connectivity based on connection duration, number and/or pattern of connection and/or disconnection events, and/or traffic activity during connection and/or disconnection events.
    Type: Application
    Filed: March 28, 2017
    Publication date: July 13, 2017
    Inventors: Manikanden Balakrishnan, Ramya Bhagavatula, Carlos Garcia, Wonjong Rhee
  • Publication number: 20160294669
    Abstract: Described are systems and methods for jointly optimizing Wide Area Network (WAN) and Local Area Network (LAN) network communications. In one embodiment, a management device communicatively interfaced with a WAN and a LAN includes a collection module to collect LAN information from the LAN and WAN information from the WAN; an analysis module to jointly analyze the collected WAN information and the collected LAN information to identify an operational condition; and an implementation module to initiate a management event responsive to the operational condition being identified. In one embodiment, the management event includes generating and transmitting a diagnostics report responsive to a fault being identified. The management device may further generate and execute instructions to remedy the diagnosed fault.
    Type: Application
    Filed: June 14, 2016
    Publication date: October 6, 2016
    Inventors: Peter Chow, Wonjong Rhee, Ardavan Maleki Tehrani, Marc Goldburg
  • Patent number: 9398146
    Abstract: In accordance with embodiments disclosed herein, there are provided methods, systems, mechanisms, techniques, and apparatuses for diagnosing and optimizing vectored DSL lines.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: July 19, 2016
    Assignee: Adaptive Spectrum and Signal Alignment, Inc.
    Inventors: Kenneth Kerpez, Mehdi Mohseni, Wonjong Rhee, Stefano Galli, Georgios Ginis, Ardavan Maleki Tehrani, Marc Goldburg
  • Patent number: 9391744
    Abstract: Data indicative of a level of stability of a DSL link is received. Based on the received data, it is determined whether the data indicates a level of stability of the DSL link that is above or below and minimum threshold. If the level of stability of the DSL link is below the minimum threshold, die noise associated with the DSL link before the time of failure is compared with the noise of failure. If the difference between the noise before and after the time of failure exceeds a threshold, then the difference in noise is characterized as a stationary noise associated with the DSL link. However, if the difference between the noise before and after the time of failure is below the threshold, a determination is made whether the failure is associated with a loss of power to the DSL link or a severe impulse noise event the difference in noise is characterized accordingly.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: July 12, 2016
    Assignee: Adaptive Spectrum and Signal Alignment, Inc.
    Inventors: John M. Cioffi, Wonjong Rhee, Georgios Ginis, Sumanth Jagannathan
  • Patent number: 9369370
    Abstract: Described are systems and methods for jointly optimizing Wide Area Network (WAN) and Local Area Network (LAN) network communications. In one embodiment, a management device communicatively interfaced with a WAN and a LAN includes a collection module to collect LAN information from the LAN and WAN information from the WAN; an analysis module to jointly analyze the collected WAN information and the collected LAN information to identify an operational condition; and an implementation module to initiate a management event responsive to the operational condition being identified. In one embodiment, the management event includes generating and transmitting a diagnostics report responsive to a fault being identified. The management device may further generate and execute instructions to remedy the diagnosed fault.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: June 14, 2016
    Assignee: Adaptive Spectrum and Signal Alignment, Inc.
    Inventors: Peter Chow, Wonjong Rhee, Ardavan Maleki Tehrani, Marc Goldburg
  • Publication number: 20160007218
    Abstract: Described is a method for performance estimation of a communication device. The method comprises: executing active probing to determine active probing data; reading operational data which includes data related to channel and its noise condition and counter values related to user data traffic between the communication device and another communication device, wherein the operational data is relevant to the current settings of the communication device; and training a performance estimation algorithm for the communication device according to the active probing data and the operational data.
    Type: Application
    Filed: July 13, 2012
    Publication date: January 7, 2016
    Applicant: Adaptive Spectrum and Signal Alignment, Inc.
    Inventors: Ramya Bhagavatula, Guocong Song, Kenneth Kerpez, Wonjong Rhee
  • Publication number: 20150350417
    Abstract: A method for detecting a defect in wiring in a DSL system. The method includes collecting data including instantaneous values, a history of values, and/or parameters relating to a central office or customer premises equipment, analyzing a line for a wiring defect based on the collected data, and reporting whether or not a wiring defect was detected responsive to the analyzing step.
    Type: Application
    Filed: August 7, 2015
    Publication date: December 3, 2015
    Applicants: AT&T Intellectual Property I, L.P., Adaptive Spectrum and Signal Alignment, Inc.
    Inventors: Wonjong RHEE, Ardavan Maleki TEHRANI, Mehdi MOHSENI, George GINIS, Haibo ZHANG, Sun-Uk Park
  • Patent number: 9203724
    Abstract: Methods, techniques, computer program products, apparatus, devices, etc., used in connection with DSL Management Interfaces, significantly improve the management capabilities of a DSL network and/or improve testing relating to DSL equipment and services by permitting better control and operation of a DSL system, including implementation of timestamping for more accurate measurement, monitoring and control of a system. Timestamping further allows customized data collection techniques, where a DSL line can be measured or monitored at intervals whose frequency depends on the line's stability. Moreover, data parameter read and control parameter write operations are presented in conjunction with the use of timestamping. Also, control and operation of a DSL system is enhanced by implementing bit-loading that minimizes, eliminates or otherwise mitigates the amount by which the SNR margin per tone exceeds a maximum SNR margin quantity, where such bit-loading can be selected through an appropriate interface.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: December 1, 2015
    Assignee: Adaptive Spectrum and Signal Alignment, Inc.
    Inventors: John M. Cioffi, Wonjong Rhee, Georgios Ginis, Sumanth Jagannathan, Peter Joshua Silverman, Mehdi Mohseni
  • Patent number: 9178777
    Abstract: Methods, apparatus and computer program products allow a user of DSL or the like to implement user preferences to the extent feasible in light of operational limits and conditions. In some embodiments, an operational profile is imposed on the user. User preference data is evaluated to determine the extent to which one or more user preferences can be implemented in light of the operational profile. One or more controllers can assist in collecting user preference data, evaluating the user preference data, operational data and other data and information, and implementing user preferences as feasible. Evaluation of the user preference data and operational profile and/or data can include considering the compatibility of the user's preferences and the operational profile and/or data.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: November 3, 2015
    Assignee: Adaptive Spectrum and Signal Alignment, Inc.
    Inventors: Wonjong Rhee, John M. Cioffi, Georgios Ginis, Peter J. Silverman
  • Publication number: 20150295802
    Abstract: Described is a method and system for connectivity diagnostics in communication systems. The method comprises: querying a first communication device at a first time and a second time to determine whether a second query a first communication device at a first time to determine communication device is connected to the first communication device and to determine a value of an operational parameter at the first and second times; and determining the second communication device disconnected from the first communication device based on detecting the second communication device was connected to the first communication device at both the first time and the second time, and detecting the value of the operational parameter at the second time is inside a range of threshold values.
    Type: Application
    Filed: October 9, 2012
    Publication date: October 15, 2015
    Applicant: ADAPTIVE SPECTRUM AND SIGNAL ALIGNMENT, INC.
    Inventors: Manikanden Balakrishnan, Ramya Bhagavatula, Carlos Garcia, Wonjong Rhee
  • Publication number: 20150288811
    Abstract: In accordance with embodiments disclosed herein, there are provided methods, systems, mechanisms, techniques, and apparatuses for diagnosing and optimizing vectored DSL lines.
    Type: Application
    Filed: June 15, 2015
    Publication date: October 8, 2015
    Applicant: ADAPTIVE SPECTRUM AND SIGNAL ALIGNMENT, INC.
    Inventors: Kenneth Kerpez, Mehdi Mohseni, Wonjong Rhee, Stefano Galli, Georgios Ginis, Ardavan Maleki Tehrani, Marc Goldburg
  • Publication number: 20150281020
    Abstract: Described is a method and system for latency measurement in communication systems. The method comprises: determining, by a first communication device, a power-management state of a second communication device; transmitting, by the first communication device, one or more packets to the second communication device over a communication link, the one or more packets to be received by the second communication device while in the power-management state; receiving, from the second communication device over the communication link, one or more response packets in response to the one or more packets; and determining a latency of the communication link when the second communication device is in the power-management state based on the one or more packets and the one or more response packets.
    Type: Application
    Filed: October 9, 2012
    Publication date: October 1, 2015
    Applicant: ADAPTIVE SPECTRUM AND SIGNAL ALIGNMENT, INC.
    Inventors: Sungho Yun, Marc Goldburg, Carlos Garcia, Wonjong Rhee
  • Patent number: 9106735
    Abstract: A method for detecting a defect in wiring in a DSL system. The method includes collecting data including instantaneous values, a history of values, and/or parameters relating to a central office or customer premises equipment, analyzing a line for a wiring defect based on the collected data, and reporting whether or not a wiring defect was detected responsive to the analyzing step.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: August 11, 2015
    Assignees: Adaptive Spectrum and Signal Alignment, Inc., AT&T Intellectaul Property I, L.P.
    Inventors: Wonjong Rhee, Ardavan Maleki Tehrani, Mehdi Mohseni, George Ginis, Haibo Zhang, Sun-Uk Park