Patents by Inventor Mo-Ching Justine Lau

Mo-Ching Justine Lau 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: 7254217
    Abstract: A fault associated with a communication medium is analyzed by correlating a first set of information indicative of echo associated with the communication medium with a second set of information indicative of echo. The fault is characterized based on the correlation between the first set of information and the second set of information. The first set of information and the second set of information can include echo canceller coefficients generated by an echo canceller coupled to the communication medium.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: August 7, 2007
    Assignee: ADC DSL Systems, Inc.
    Inventors: Michael J. Rude, Ronald R. Gerlach, Mo-Ching Justine Lau, Tiet Pham, William W. Lu
  • Patent number: 7190783
    Abstract: An integrated digital subscriber line transceiver includes a single integrated circuit that has a digital signal processing engine, a time division multiplexing framer (for example, a T1/E1 framer), and a static random access memory. The integrated circuit also includes a microprocessor coupled to the digital signal processing engine, the time division multiplexing framer, and the static random access memory. The digital signal processing engine, in one embodiment, includes an HDSL2/G.SHDSL data pump and an HDSL2/G.SHDSL framer.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: March 13, 2007
    Assignee: ADC DSL Systems, Inc.
    Inventors: Ronald R. Gerlach, Mo-Ching Justine Lau, Ramya Niroshana Dissanayake
  • Patent number: 6973600
    Abstract: A device apparatus and method are detailed that allow for improved bit error rate (BER) testing, configuration, and operation of a communication device and associated physical communication link, in particular on a HDSL communication device and link. The improved communication device apparatus and method additionally allow for the communication device to utilize an embedded BER tester (BERT) to run commonly utilized BER tests on high speed communication channels (downstream and upstream) associated with the communication device. The device apparatus and method also allow for a BER test to be configured and initiated remotely, with loopback at a remote device and masking of alarm states at the remote device or local device until the BER test is complete.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: December 6, 2005
    Assignee: ADC DSL Systems, Inc.
    Inventors: Mo-Ching Justine Lau, Harrison Doan, Raymond Diaz
  • Publication number: 20040114752
    Abstract: A fault associated with a communication medium is analyzed by correlating a first set of information indicative of echo associated with the communication medium with a second set of information indicative of echo. The fault is characterized based on the correlation between the first set of information and the second set of information. The first set of information and the second set of information can include echo canceller coefficients generated by an echo canceller coupled to the communication medium.
    Type: Application
    Filed: June 16, 2003
    Publication date: June 17, 2004
    Applicant: ADC DSL Systems, Inc.
    Inventors: Michael J. Rude, Ronald R. Gerlach, Mo-Ching Justine Lau, Tiet Pham, William W. Lu
  • Publication number: 20030149921
    Abstract: A device apparatus and method are detailed that allow for improved bit error rate (BER) testing, configuration, and operation of a communication device and associated physical communication link, in particular on a HDSL communication device and link. The improved communication device apparatus and method additionally allow for the communication device to utilize an embedded BER tester (BERT) to run commonly utilized BER tests on high speed communication channels (downstream and upstream) associated with the communication device. The device apparatus and method also allow for a BER test to be configured and initiated remotely, with loopback at a remote device and masking of alarm states at the remote device or local device until the BER test is complete.
    Type: Application
    Filed: February 1, 2002
    Publication date: August 7, 2003
    Inventors: Mo-Ching Justine Lau, Harrison Doan, Raymond Diaz