Patents by Inventor Thomas N. Zogakis

Thomas N. Zogakis 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).

  • Memory-efficient ADSL transmission in the presence of TCM-ISDN interferers
    Patent number: 7733763
    Abstract: A method of communicating data across a channel that experiences near-end cross talk (NEXT) interference and far-end cross talk (FEXT) interference in alternate intervals. In one embodiment, a first data rate is determined for a first carrier-number mode that is to utilize a first bit table, a second data rate is determined for a second carrier-number mode that is to utilize dual bit tables, a third data rate is determined for a third carrier-number mode that is to utilize a second bit table during a FEXT interval, and a modem is configured to transmit using the mode having a highest data rate.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: June 8, 2010
    Assignee: Texas Instruments Incorporated
    Inventors: Konrad W. Kratochwil, Thomas N. Zogakis, Peter J. Melsa
  • Memory-Efficient ADSL Transmission in the Presence of TCM-ISDN Interferers
    Publication number: 20080259955
    Abstract: A method of communicating data across a channel that experiences near-end cross talk (NEXT) interference and far-end cross talk (FEXT) interference in alternate intervals. In one embodiment, a first data rate is determined for a first carrier-number mode that is to utilize a first bit table, a second data rate is determined for a second carrier-number mode that is to utilize dual bit tables, and a modem is configured to transmit using the mode having a highest data rate.
    Type: Application
    Filed: June 25, 2008
    Publication date: October 23, 2008
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Konrad W. Kratochwil, Thomas N. Zogakis, Peter J. Melsa
  • Memory-efficient ADSL transmission in the presence of TCM-ISDN interferers
    Patent number: 7406028
    Abstract: A method of communicating data across a channel that experiences near-end cross talk (NEXT) interference and far-end cross talk (FEXT) interference in alternate intervals. In one embodiment, the method comprises: a) determining NF, the number of bits per symbol usable in a FEXT-only mode of operation; b) determining NS, a number of bits per symbol usable in a single mode of operation; c) determining whether the FEXT-only mode or the single mode provides a higher data rate; and d) configuring a modem to transmit using the mode having a higher data rate. The FEXT-only mode may be determined to have a higher data rate when 126NF>340NS.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: July 29, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: Konrad W. Kratochwil, Thomas N. Zogakis, Peter J. Melsa
  • Echo cancellation in communication systems with asymmetric data rates
    Patent number: 7274732
    Abstract: A communication device (e.g., a modem) is disclosed as including logic that processes a transmit signal before providing a signal to an echo canceler. The processing may include low pass filtering and decimation of the transmit signal. The low pass filter's cut-off frequency preferably is less than the sampling rate associated with the transmit signal.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: September 25, 2007
    Assignee: Texas Instruments Incorporated
    Inventors: Peter J. Melsa, Thomas N. Zogakis
  • Echo cancellation in communication systems with asymmetric data rates
    Publication number: 20040184519
    Abstract: A communication device (e.g., a modem) is disclosed as including logic that processes a transmit signal before providing a signal to an echo canceler. The processing may include low pass filtering and decimation of the transmit signal. The low pass filter's cut-off frequency preferably is less than the sampling rate associated with the transmit signal.
    Type: Application
    Filed: March 21, 2003
    Publication date: September 23, 2004
    Applicant: Texas Instruments incorporated
    Inventors: Peter J. Melsa, Thomas N. Zogakis
  • Memory-efficient ADSL transmission in the presence of TCM-ISDN interferers
    Publication number: 20030227865
    Abstract: A method of communicating data across a channel that experiences near-end cross talk (NEXT) interference and far-end cross talk (FEXT) interference in alternate intervals. In one embodiment, the method comprises: a) determining NF, the number of bits per symbol usable in a FEXT-only mode of operation; b) determining NS, a number of bits per symbol usable in a single mode of operation; c) determining whether the FEXT-only mode or the single mode provides a higher data rate; and d) configuring a modem to transmit using the mode having a higher data rate. The FEXT-only mode may be determined to have a higher data rate when 126NF>340NS.
    Type: Application
    Filed: January 14, 2003
    Publication date: December 11, 2003
    Applicant: Texas Instruments Incorporated
    Inventors: Konrad W. Kratochwil, Thomas N. Zogakis, Peter J. Melsa