Patents by Inventor Timothy Axness
Timothy Axness 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).
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Patent number: 7962170Abstract: A multi-mode wireless transmit/receive unit (WTRU) includes at least one antenna, first and second communication mode receivers and a first communication mode transmitter. The first and second receivers simultaneously receive signals from the antenna. The first transmitter generates and sends a first type of signal to the antenna while, at the same time, the second receiver receives a second type of signal from the antenna. In a preferred embodiment, the WTRU further includes a vector multiplier configured to reduce or eliminate interference of signals received by the second receiver, the interference being caused by the first transmitter. The vector multiplier adjusts the phase and amplitude of noise (i.e., spurious in-band noise) measured by the second receiver. The WTRU may further include a second communication mode transmitter configured to generate and send a second type of signal to the antenna.Type: GrantFiled: October 22, 2008Date of Patent: June 14, 2011Assignee: InterDigital Technology CorporationInventors: Timothy A Axness, Leonid Kazakevich
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Patent number: 7752482Abstract: A hybrid serial/parallel bus interface has a data block demultiplexing device. The data block demultiplexing device has an input configured to receive a data block and demultiplexes the data block into a plurality of nibbles. For each nibble, a parallel to serial converter converts the nibble into serial data. A line transfers each nibble's serial data. A serial to parallel converter converts each nibble's serial data to recover that nibble. A data block reconstruction device combines the recovered nibbles into the data block. The data block is employed by a gain controller. Each nibble has at least two start bits whose states collectively represent both a function and/or destination.Type: GrantFiled: July 3, 2008Date of Patent: July 6, 2010Assignee: InterDigital Technology CorporationInventors: Joseph Gredone, Alfred Stufflet, Timothy A. Axness
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Patent number: 7684524Abstract: An automatic gain control (AGC) method according to the present invention applies an initial gain by a digital AGC circuit in a timeslot is determined using a final calculated gain from the same timeslot in the previous frame together with an offset factor. An erase function is activated for a given data sample block when the number of saturated data samples that are detected within the block exceeds a threshold value. The power measurement made by the AGC circuit and used to update the gain is adjusted based on the number of measured data samples that are saturated. These elements provide a gain limiting function and allows limiting of the dynamic range for further signal processing.Type: GrantFiled: March 12, 2004Date of Patent: March 23, 2010Assignee: InterDigital Technology CorporationInventors: John W. Haim, Fryderyk Tyra, Louis J. Guccione, Timothy A. Axness, Donald M. Grieco
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Publication number: 20090047914Abstract: A multi-mode wireless transmit/receive unit (WTRU) includes at least one antenna, first and second communication mode receivers and a first communication mode transmitter. The first and second receivers simultaneously receive signals from the antenna. The first transmitter generates and sends a first type of signal to the antenna while, at the same time, the second receiver receives a second type of signal from the antenna. In a preferred embodiment, the WTRU further includes a vector multiplier configured to reduce or eliminate interference of signals received by the second receiver, the interference being caused by the first transmitter. The vector multiplier adjusts the phase and amplitude of noise (i.e., spurious in-band noise) measured by the second receiver. The WTRU may further include a second communication mode transmitter configured to generate and send a second type of signal to the antenna.Type: ApplicationFiled: October 22, 2008Publication date: February 19, 2009Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Timothy A. Axness, Leonid Kazakevich
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Patent number: 7475273Abstract: A hybrid serial/parallel bus interface has a data block demultiplexing device. The data block demultiplexing device has an input configured to receive a data block and demultiplexes the data block into a plurality of nibbles. For each nibble, a parallel to serial converter converts the nibble into serial data. A line transfers each nibble's serial data. A serial to parallel converter converts each nibble's serial data to recover that nibble. A data block reconstruction device combines the recovered nibbles into the data block. The data block is employed by a gain controller.Type: GrantFiled: January 3, 2007Date of Patent: January 6, 2009Assignee: InterDigital Technology CorporationInventors: Joseph Gredone, Alfred Stufflet, Timothy A. Axness
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Patent number: 7447519Abstract: A multi-mode wireless transmit/receive unit (WTRU) includes at least one antenna, first and second communication mode receivers and a first communication mode transmitter. The first and second receivers simultaneously receive signals from the antenna. The first transmitter generates and sends a first type of signal to the antenna while, at the same time, the second receiver receives a second type of signal from the antenna. In a preferred embodiment, the WTRU further includes a vector multiplier configured to reduce or eliminate interference of signals received by the second receiver, the interference being caused by the first transmitter. The vector multiplier adjusts the phase and amplitude of noise (i.e., spurious in-band noise) measured by the second receiver. The WTRU may further include a second communication mode transmitter configured to generate and send a second type of signal to the antenna.Type: GrantFiled: January 17, 2007Date of Patent: November 4, 2008Assignee: InterDigital Technology CorporationInventors: Timothy A. Axness, Leonid Kazakevich
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Publication number: 20080268800Abstract: A hybrid serial/parallel bus interface has a data block demultiplexing device. The data block demultiplexing device has an input configured to receive a data block and demultiplexes the data block into a plurality of nibbles. For each nibble, a parallel to serial converter converts the nibble into serial data. A line transfers each nibble's serial data. A serial to parallel converter converts each nibble's serial data to recover that nibble. A data block reconstruction device combines the recovered nibbles into the data block. The data block is employed by a gain controller. Each nibble has at least two start bits whose states collectively represent both a function and/or destination.Type: ApplicationFiled: July 3, 2008Publication date: October 30, 2008Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Joseph Gredone, Alfred Stufflet, Timothy A. Axness
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Patent number: 7336701Abstract: A method for emulating signal impairments to enable dynamic evaluation of transmit and receive modem performance through the use of computer-generated models enabling both an evaluation of system performance as well as a comparison of results obtained from system designs respectively exposed to both impaired and unimpaired conditions to enable direct comparison as well as comparison with standardized measurement values to facilitate system design activities prior to any hardware implementation.Type: GrantFiled: December 18, 2002Date of Patent: February 26, 2008Assignee: InterDigital Technology CorporationInventors: Kenneth P. Kearney, Leonid Kazakevich, Timothy A. Axness, James Nolan
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Patent number: 7313409Abstract: A method and apparatus for transmit power control (TPC) while switching a beam among a plurality of beams in a wireless communication system. An antenna array generates a plurality of directional beams and preferably an omni-directional pattern and switches a beam among the plurality of beams preferably including the omni-directional pattern. Link quality on at least one of the plurality of beams is measured, and a beam having a greatest link quality is selected. If the selected beam is different from a current beam, a beam is switched from the current beam to the selected beam. While switching a beam, TPC parameters are adjusted based on the link quality difference between the link quality of the current beam and the link quality of the selected beam, and optionally, base on other parameters.Type: GrantFiled: December 22, 2004Date of Patent: December 25, 2007Assignee: InterDigital Technology CorporationInventors: Ana Lucia Iacono, Janet Stern-Berkowitz, Timothy A. Axness, Kambiz Casey Zangi
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Patent number: 7240233Abstract: A hybrid serial/parallel bus interface has a data block demultiplexing device. The data block demultiplexing device has an input configured to receive a data block and demultiplexes the data block into a plurality of nibbles. For each nibble, a parallel to serial converter converts the nibble into serial data. A line transfers each nibble's serial data. A serial to parallel converter converts each nibble's serial data to recover that nibble. A data block reconstruction device combines the recovered nibbles into the data block. The data block is employed by a gain controller.Type: GrantFiled: June 13, 2005Date of Patent: July 3, 2007Assignee: Interdigital Technology CorporationInventors: Joseph Gredone, Alfred Stufflet, Timothy A. Axness
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Publication number: 20070117522Abstract: A multi-mode wireless transmit/receive unit (WTRU) includes at least one antenna, first and second communication mode receivers and a first communication mode transmitter. The first and second receivers simultaneously receive signals from the antenna. The first transmitter generates and sends a first type of signal to the antenna while, at the same time, the second receiver receives a second type of signal from the antenna. In a preferred embodiment, the WTRU further includes a vector multiplier configured to reduce or eliminate interference of signals received by the second receiver, the interference being caused by the first transmitter. The vector multiplier adjusts the phase and amplitude of noise (i.e., spurious in-band noise) measured by the second receiver. The WTRU may further include a second communication mode transmitter configured to generate and send a second type of signal to the antenna.Type: ApplicationFiled: January 17, 2007Publication date: May 24, 2007Applicant: InterDigital Technology CorporationInventors: Timothy Axness, Leonid Kazakevich
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Publication number: 20070113117Abstract: A hybrid serial/parallel bus interface has a data block demultiplexing device. The data block demultiplexing device has an input configured to receive a data block and demultiplexes the data block into a plurality of nibbles. For each nibble, a parallel to serial converter converts the nibble into serial data. A line transfers each nibble's serial data. A serial to parallel converter converts each nibble's serial data to recover that nibble. A data block reconstruction device combines the recovered nibbles into the data block. The data block is employed by a gain controller.Type: ApplicationFiled: January 3, 2007Publication date: May 17, 2007Applicant: InterDigital Technology CorporationInventors: Joseph Gredone, Alfred Stufflet, Timothy Axness
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Publication number: 20070085718Abstract: A method for a radio communications device such as a receiver, transmitter or transceiver provides direct conversion of quadrature signals between a radio frequency signal and a plurality of resolved channels. The method provides block processing of multiple RF carriers in a wireless communication system using a direct conversion transmitter/receiver and baseband signal processing.Type: ApplicationFiled: November 22, 2006Publication date: April 19, 2007Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Timothy Axness, Leonid Kazakevich
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Patent number: 7177663Abstract: A multi-mode wireless transmit/receive unit (WTRU) includes at least one antenna, first and second communication mode receivers and a first communication mode transmitter. The first and second receivers simultaneously receive signals from the antenna. The first transmitter generates and sends a first type of signal to the antenna while, at the same time, the second receiver receives a second type of signal from the antenna. In a preferred embodiment, the WTRU further includes a vector multiplier configured to reduce or eliminate interference of signals received by the second receiver, the interference being caused by the first transmitter. The vector multiplier adjusts the phase and amplitude of noise (i.e., spurious in-band noise) measured by the second receiver. The WTRU may further include a second communication mode transmitter configured to generate and send a second type of signal to the antenna.Type: GrantFiled: May 24, 2004Date of Patent: February 13, 2007Assignee: InterDigital Technology CorporationInventors: Timothy A. Axness, Leonid Kazakevich
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Patent number: 7162218Abstract: A radio communications device such as a receiver, transmitter or transceiver provides direct conversion of quadrature signals between a radio frequency signal and a plurality of resolved channels. The device provides block processing of multiple RF carriers in a wireless communication system using a direct conversion transmitter/receiver and baseband signal processing.Type: GrantFiled: June 6, 2003Date of Patent: January 9, 2007Assignee: InterDigital Technology CorporationInventors: Timothy A. Axness, Leonid Kazakevich
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Patent number: 7107479Abstract: A hybrid serial/parallel bus interface method and apparatus for a base station has a data block demultiplexing device. The data block demultiplexing device has an input configured to receive a data block and demultiplexes the data block into a plurality of nibbles. For each nibble, a parallel to serial converter converts the nibble into serial data. A line transfers each nibble's serial data. A serial to parallel converter converts each nibble's serial data to recover that nibble. A data block reconstruction device combines the recovered nibbles into the data block. The method/apparatus is adaptable for either bidirectional or unidirectional applications.Type: GrantFiled: December 2, 2004Date of Patent: September 12, 2006Assignee: InterDigital Technology CorporationInventors: Joseph Gredone, Alfred W. Stufflet, Timothy A. Axness
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Patent number: 7079843Abstract: A method and apparatus for establishing a set of cells used to support a soft handoff. The apparatus is used in a wireless communication system including a plurality of cells and at least one wireless transmit/receive unit (WTRU) having at least one beam antenna which is configured to transition between a switch beam mode and an omni-directional beam mode. The WTRU communicates with a serving cell while the beam antenna is in the switch beam mode. The WTRU performs measurements on cells neighboring the serving cell to determine measurement results associated with the cells. The WTRU then determines whether each of the measurement results exceeds a predetermined threshold. A set of cells associated with the measurement results that exceed the predetermined threshold is established. If the number of cells in the set reaches a predetermined number, the beam antenna transitions from the switch beam mode to the omni-directional beam mode.Type: GrantFiled: September 24, 2004Date of Patent: July 18, 2006Assignee: InterDigital Technology CorporationInventors: Ana Lucia Iacono, Timothy A. Axness, Kevin Peter Johnson, Thomas Eric Gorsuch
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Patent number: 7069464Abstract: A hybrid serial/parallel bus interface has a data block demultiplexing device. The data block demultiplexing device has an input configured to receive a data block and demultiplexes the data block into a plurality of nibbles. For each nibble, a parallel to serial converter converts the nibble into serial data. A line transfers each nibble's serial data. A serial to parallel converter converts each nibble's serial data to recover that nibble. A data block reconstruction device combines the recovered nibbles into the data block.Type: GrantFiled: November 21, 2001Date of Patent: June 27, 2006Assignee: Interdigital Technology CorporationInventors: Joseph Gredone, Alfred Stufflet, Timothy A. Axness
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Publication number: 20050250461Abstract: A hybrid serial/parallel bus interface has a data block demultiplexing device. The data block demultiplexing device has an input configured to receive a data block and demultiplexes the data block into a plurality of nibbles. For each nibble, a parallel to serial converter converts the nibble into serial data. A line transfers each nibble's serial data. A serial to parallel converter converts each nibble's serial data to recover that nibble. A data block reconstruction device combines the recovered nibbles into the data block. The data block is employed by a gain controller.Type: ApplicationFiled: June 13, 2005Publication date: November 10, 2005Applicant: InterDigital Technology CorporationInventors: Joseph Gredone, Alfred Stufflet, Timothy Axness
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Publication number: 20050226345Abstract: Apparatus for reducing adjacent channel interference between proximate wireless communication units. Each wireless communication unit includes a digital baseband circuit and an analog baseband circuit. The digital baseband circuit includes at least one group delay compensation equalizer and at least one finite-impulse response (FIR) filter. The analog baseband circuit includes a radio (transmitter section), a power amplifier and a narrowband filter. The narrowband filter compensates for deficiencies of the power amplifier including distortion and radio frequency (RF) power spill over. The group delay compensation filter compensates for undesired characteristics (e.g., group delay variation) exhibited by the narrowband filter.Type: ApplicationFiled: March 21, 2005Publication date: October 13, 2005Applicant: InterDigital Technology CorporationInventors: Gerard Klahn, Robert Troiano, Fryderyk Tyra, Timothy Axness