Patents by Inventor Pui Wu

Pui Wu 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).

  • Adaptive allocation for variable bandwidth multicarrier communication
    Patent number: 8767698
    Abstract: Data is distributed among the channels of an asynchronous data subscriber loop (ADSL) communications system in accordance with an adaptive algorithm which from time to time measures the signal to noise ratio of the various channels and finds a margin for each channel dependent on achievement (where possible) of a given bit error rate and a desired data transmission rate. The margin distribution is achieved by augmenting the constellation signal to noise ratio to enhance computational efficiency and allow redetermination of bit allocation tables during transmission as necessary. Pairs of bit allocation tables are maintained at the transmitter and receiver and one table of each pair at the transmitter and receiver is updated while the other pair is in use for controlling communication.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: July 1, 2014
    Assignee: Intellectual Ventures II LLC
    Inventors: Marcos C. Tzannes, George Kechriotis, Pui Wu
  • ADAPTIVE ALLOCATION FOR VARIABLE BANDWIDTH MULTICARRIER COMMUNICATION
    Publication number: 20130155870
    Abstract: Data is distributed among the channels of an asynchronous data subscriber loop (ADSL) communications system in accordance with an adaptive algorithm which from time to time measures the signal to noise ratio of the various channels and finds a margin for each channel dependent on achievement (where possible) of a given bit error rate and a desired data transmission rate. The margin distribution is achieved by augmenting the constellation signal to noise ratio to enhance computational efficiency and allow redetermination of bit allocation tables during transmission as necessary. Pairs of bit allocation tables are maintained at the transmitter and receiver and one table of each pair at the transmitter and receiver is updated while the other pair is in use for controlling communication.
    Type: Application
    Filed: January 30, 2013
    Publication date: June 20, 2013
    Inventors: Marcos C. Tzannes, George Kechriotis, Pui Wu
  • Adaptive allocation for variable bandwidth multicarrier communication
    Patent number: 8369275
    Abstract: Data is distributed among the channels of an asynchronous data subscriber loop (ADSL) communications system in accordance with an adaptive algorithm which from time to time measures the signal to noise ratio of the various channels and finds a margin for each channel dependent on achievement (where possible) of a given bit error rate and a desired data transmission rate. The margin distribution is achieved by augmenting the constellation signal to noise ratio to enhance computational efficiency and allow redetermination of bit allocation tables during transmission as necessary. Pairs of bit allocation tables are maintained at the transmitter and receiver and one table of each pair at the transmitter and receiver is updated while the other pair is in use for controlling communication.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: February 5, 2013
    Assignee: Daphimo Co. B.V., LLC
    Inventors: Marcos Tzannes, George Kechriotis, Pui Wu
  • ADAPTIVE ALLOCATION FOR VARIABLE BANDWIDTH MULTICARRIER COMMUNICATION
    Publication number: 20110019751
    Abstract: Data is distributed among the channels of an asynchronous data subscriber loop (ADSL) communications system in accordance with an adaptive algorithm which from time to time measures the signal to noise ratio of the various channels and finds a margin for each channel dependent on achievement (where possible) of a given bit error rate and a desired data transmission rate. The margin distribution is achieved by augmenting the constellation signal to noise ratio to enhance computational efficiency and allow redetermination of bit allocation tables during transmission as necessary. Pairs of bit allocation tables are maintained at the transmitter and receiver and one table of each pair at the transmitter and receiver is updated while the other pair is in use for controlling communication.
    Type: Application
    Filed: October 4, 2010
    Publication date: January 27, 2011
    Inventors: Marcos Tzannes, George Kechriotis, Pui Wu
  • Adaptive allocation for variable bandwidth multicarrier communication
    Patent number: 7817532
    Abstract: Data is distributed among the channels of an asynchronous data subscriber loop (ADSL) communications system in accordance with an adaptive algorithm which from time to time measures the signal to noise ratio of the various channels and finds a margin for each channel dependent on achievement (where possible) of a given bit error rate and a desired data transmission rate. The margin distribution is achieved by augmenting the constellation signal to noise ratio to enhance computational efficiency and allow redetermination of bit allocation tables during transmission as necessary. Pairs of bit allocation tables are maintained at the transmitter and receiver and one table of each pair at the transmitter and receiver is updated while the other pair is in use for controlling communication.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: October 19, 2010
    Inventors: Marcos Tzannes, George Kechriotis, Pui Wu
  • Adaptive Allocation For Variable Bandwidth Multicarrier Communication
    Publication number: 20060209894
    Abstract: Data is distributed among the channels of an asynchronous data subscriber loop (ADSL) communications system in accordance with an adaptive algorithm which from time to time measures the signal to noise ratio of the various channels and finds a margin for each channel dependent on achievement (where possible) of a given bit error rate and a desired data transmission rate. The margin distribution is achieved by augmenting the constellation signal to noise ratio to enhance computational efficiency and allow redetermination of bit allocation tables during transmission as necessary. Pairs of bit allocation tables are maintained at the transmitter and receiver and one table of each pair at the transmitter and receiver is updated while the other pair is in use for controlling communication.
    Type: Application
    Filed: June 7, 2006
    Publication date: September 21, 2006
    Applicant: AWARE, INC.
    Inventors: Marcos Tzannes, George Kechriotis, Pui Wu
  • Adaptive allocation for variable bandwidth multicarrier communication
    Publication number: 20050083972
    Abstract: Data is distributed among the channels of an asynchronous data subscriber loop (ADSL) communications system in accordance with an adaptive algorithm which from time to time measures the signal to noise ratio of the various channels and finds a margin for each channel dependent on achievement (where possible) of a given bit error rate and a desired data transmission rate. The margin distribution is achieved by augmenting the constellation signal to noise ratio to enhance computational efficiency and allow redetermination of bit allocation tables during transmission as necessary. Pairs of bit allocation tables are maintained at the transmitter and receiver and one table of each pair at the transmitter and receiver is updated while the other pair is in use for controlling communication.
    Type: Application
    Filed: February 2, 2004
    Publication date: April 21, 2005
    Applicant: Aware, Inc.
    Inventors: Marcos Tzannes, George Kechriotis, Pui Wu
  • Adaptive allocation for variable bandwidth multicarrier communication
    Patent number: 6798735
    Abstract: Data is distributed among the channels of an asymmetric data subscriber loop (ADSL) communications system in accordance with an adaptive algorithm which from time to time measures the signal to noise ratio of the various channels and finds a margin for each channel dependent on achievement (where possible) of a given bit error rate and a desired data transmission rate. The margin distribution is achieved by augmenting the constellation signal to noise ratio to enhance computational efficiency and allow redetermination of bit allocation tables during transmission as necessary. Pairs of bit allocation tables are maintained at the transmitter and receiver and one table of each pair at the transmitter and receiver is updated while the other pair is in use for controlling communication.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: September 28, 2004
    Assignee: Aware, Inc.
    Inventors: Marcos Tzannes, George Kechriotis, Pui Wu
  • Adaptive allocation for variable bandwidth multicarrier communication
    Patent number: 6072779
    Abstract: Data is distributed among the channels of an asymmetric data subscriber loop (ADSL) communications system in accordance with an adaptive algorithm which from time to time measures the signal to noise ratio of the various channels and finds a margin for each channel dependent on achievement (where possible) of a given bit error rate and a desired data transmission rate. The margin distribution is achieved by augmenting the constellation signal to noise ratio to enhance computational efficiency and allow redetermination of bit allocation tables during transmission as necessary. Pairs of bit allocation tables are maintained at the transmitter and receiver and one table of each pair at the transmitter and receiver is updated while the other pair is in use for controlling communication.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: June 6, 2000
    Assignee: Aware, Inc.
    Inventors: Marcos Tzannes, George Kechriotis, Pui Wu