Patents by Inventor Yann Ly-Gagnon

Yann Ly-Gagnon 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: 9807712
    Abstract: A method for dynamic sizing of a blocker margin by a receiver automatic gain control (AGC) is described. The method includes measuring a wanted signal level and a blocker signal level. The method also includes adjusting a linear target for the wanted signal level at the output of an analog-to-digital converter (ADC) of the receiver based on the blocker signal level. The linear target is adjusted to optimize a wanted signal signal-to-noise ratio (SNR) and the blocker margin. The method further includes adjusting a receiver front-end gain based on the adjusted linear target.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: October 31, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Yann Ly-Gagnon, Le Nguyen Luong
  • Patent number: 9729179
    Abstract: Systems and methods for interference cancellation in a receiver of wireless signals include receiving a signal comprising an aggressor and a desired signal. The received signal is amplified in a low noise amplifier (LNA) to generate an amplified received signal. The aggressor is extracted from the received signal in a feed-forward path between an input of the LNA and an output of the LNA, to generate an extracted aggressor and the extracted aggressor is subtracted from the amplified received signal to provide the desired signal. An amplify and rotate block in the feed-forward path is used to align a phase of the aggressor to a phase of the amplified received signal in order to enable the subtraction.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: August 8, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Mohammad Emadi, Mazhareddin Taghivand, Yann Ly-Gagnon
  • Publication number: 20170142671
    Abstract: A method for dynamic sizing of a blocker margin by a receiver automatic gain control (AGC) is described. The method includes measuring a wanted signal level and a blocker signal level. The method also includes adjusting a linear target for the wanted signal level at the output of an analog-to-digital converter (ADC) of the receiver based on the blocker signal level. The linear target is adjusted to optimize a wanted signal signal-to-noise ratio (SNR) and the blocker margin. The method further includes adjusting a receiver front-end gain based on the adjusted linear target.
    Type: Application
    Filed: November 18, 2015
    Publication date: May 18, 2017
    Inventors: Yann Ly-Gagnon, Le Nguyen Luong
  • Patent number: 9125158
    Abstract: A mechanism can be implemented for reducing the power consumption of a wireless radio device in establishing a wireless connection by utilizing a wideband signal to detect a narrowband trigger signal at a potential narrowband trigger frequency. The wireless radio device may operate a wideband receiver to receive an RF signal. Being aware of the potential narrowband trigger frequencies, the wideband receiver may utilize the received RF signal to detect the presence of a narrowband trigger signal at one of the potential narrowband trigger frequencies.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: September 1, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Yann Ly-Gagnon, Paul J. Husted, Olaf J. Hirsch
  • Patent number: 9100243
    Abstract: A method of operating a receiver in a communications system is disclosed. The receiver receives a radio-frequency (RF) data signal and converts the RF data signal to an intermediate frequency. The receiver then determines whether a blocker image interferes with the received data signal, and selectively adjusts the intermediate frequency to which the data signal is converted based on the determination. The receiver may lower the intermediate frequency if the blocker image interferes with the received data signal. The receiver may also deactivate a quadrature chain of the receiver if the blocker image interferes with the received data signal.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: August 4, 2015
    Assignee: Qualcomm Incorporated
    Inventors: Yann Ly-Gagnon, Paul Husted
  • Patent number: 9094079
    Abstract: Systems and methods are disclosed for compensating I-Q imbalance in a wireless receiver. The receiver may employ a quadrature downconverter configured to receive an RF signal input and output an in-phase component and a quadrature component at an IF, an IF rotation block configured to downconvert the in-phase and quadrature components to baseband and an I-Q correction block configured to compensate for an I-Q imbalance in the received signal, wherein the I-Q correction block is positioned downstream from the IF rotation block in the signal path. Performing the I-Q correction after conversion to baseband may allow the compensation calculations to operate at a reduced digital rate. Similarly, digitally adjusting the gain of the signal prior to I-Q compensation may reduce the number of bits that are manipulated during the compensation process. These features may represent significant efficiencies as compared to I-Q corrections performed at IF.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: July 28, 2015
    Assignee: Qualcomm Incorporated
    Inventors: Daniel Jose Fernandes Barros, Le Nguyen Luong, James Young Hurt, Yann Ly-Gagnon, Paul James Husted
  • Patent number: 8995586
    Abstract: A device and method are disclosed for reducing the power consumption of a wireless radio device in establishing a wireless connection by predicting a probability of a positive correlation. The wireless radio device may power up a radio receiver of a connectable device to receive a portion of a sync word from a requesting device, determine a correlation value based on the received portion of the sync word and an expected sync word and if the correlation value is less than a threshold value, power down the radio receiver of the connectable device. Additionally, if the correlation value is greater than a threshold value, the entire sync word may be received from the requesting device and a correlation value may be determined based on the entire sync word and the expected sync word.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: March 31, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Yann Ly-Gagnon, Paul Husted, Olaf Josef Hirsch
  • Patent number: 8885692
    Abstract: Embodiments of the present invention provide an apparatus comprising a transceiver having a receiver and a transmitter connected through a segment of a calibration loop back path. The apparatus also comprises a control system configured to communicate with the transceiver. The calibration loop back path has an intentional phase shift that can be toggled between an off state and an on state by the control system. The control system is configured to calculate the intentional phase shift by examining the difference of a first and second phase angle. The first phase angle is obtained from the transmission of a first pair of signals with the intentional phase shift in the off state. The second phase angle is obtained from the transmission of a second pair of signals with the intentional phase shift in the on state.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: November 11, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Yann Ly-Gagnon
  • Publication number: 20140270019
    Abstract: A method of operating a receiver in a communications system is disclosed. The receiver receives a radio-frequency (RF) data signal and converts the RF data signal to an intermediate frequency. The receiver then determines whether a blocker image interferes with the received data signal, and selectively adjusts the intermediate frequency to which the data signal is converted based on the determination. The receiver may lower the intermediate frequency if the blocker image interferes with the received data signal. The receiver may also deactivate a quadrature chain of the receiver if the blocker image interferes with the received data signal.
    Type: Application
    Filed: June 21, 2013
    Publication date: September 18, 2014
    Inventors: Yann Ly-Gagnon, Paul Husted
  • Patent number: 8817717
    Abstract: A Bluetooth detection unit can be implemented to minimize the time required for executing the inquiry and paging scan procedures on a Bluetooth device associated with a collocated WLAN device. The Bluetooth detection unit can execute concurrent background spectral scanning to detect Bluetooth control packets while the WLAN device is receiving WLAN packets. The Bluetooth detection unit can analyze, for each Bluetooth control channel, the Bluetooth device can determine energy measurements associated with each Bluetooth control channel and can determine whether each Bluetooth control channel comprises a narrowband signal based, at least in part, on frequency domain samples associated with an RF signal received at the WLAN device. The Bluetooth detection unit can determine which of the Bluetooth control channels comprise a Bluetooth control packet.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: August 26, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Yann Ly-Gagnon, Konstantinos Aretos, Xiaoru Zhang
  • Patent number: 8787230
    Abstract: A mechanism can be implemented in a communication unit of a network device to utilize periods of silence encountered in voice communication to conserve power at the network device. In some embodiments, it can be determined that one or more packets of a received RF signal comprise audio data. The communication unit of the network device can determine whether the audio data associated with the one or more packets comprises voice information. The network device can switch to a power save mode based, at least in part, on determining that the audio data associated with the one or more packets does not comprise voice information.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: July 22, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Yann Ly-Gagnon, Paul J. Husted, Michael Peter Mack
  • Publication number: 20140098913
    Abstract: Systems and methods are disclosed for compensating I-Q imbalance in a wireless receiver. The receiver may employ a quadrature downconverter configured to receive an RF signal input and output an in-phase component and a quadrature component at an IF, an IF rotation block configured to downconvert the in-phase and quadrature components to baseband and an I-Q correction block configured to compensate for an I-Q imbalance in the received signal, wherein the I-Q correction block is positioned downstream from the IF rotation block in the signal path. Performing the I-Q correction after conversion to baseband may allow the compensation calculations to operate at a reduced digital rate. Similarly, digitally adjusting the gain of the signal prior to I-Q compensation may reduce the number of bits that are manipulated during the compensation process. These features may represent significant efficiencies as compared to I-Q corrections performed at IF.
    Type: Application
    Filed: October 8, 2012
    Publication date: April 10, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Daniel Jose FERNANDES BARROS, Le Nguyen LUONG, James Young HURT, Yann LY-GAGNON, Paul James HUSTED
  • Patent number: 8687670
    Abstract: A Bluetooth paging procedure can implement a mechanism for predicting a Bluetooth paging channel in a paging channel hopping sequence. One or more Bluetooth paging channels, on which one or more page requests intended for a Bluetooth device were received, are determined from a plurality of Bluetooth communication channels. One of a plurality of paging channel hopping sequences associated with the Bluetooth device that comprises each of the one or more determined Bluetooth paging channels is identified. A time delay associated with determining a target Bluetooth paging channel from the plurality of Bluetooth communication channels on which to transmit a page response is determined. The target Bluetooth paging channel is determined based, at least in part, on the identified one of the plurality of the paging channel hopping sequences and the time delay.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: April 1, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Yann Ly-Gagnon, Paul J. Husted
  • Publication number: 20130281035
    Abstract: A system and method for measuring transmission power distortion in a wireless communication device are disclosed. In one embodiment, the method comprises reading an operating temperature of the wireless communication device and enabling a loopback path between a transmission circuit and a receiver circuit of the wireless communication device. Using the loopback path, the wireless communication device can calibrate the transmission power output by storing data for compensating the distortion of the transmission power. The data can be stored in a calibration look up table for use by the wireless communication device.
    Type: Application
    Filed: June 18, 2013
    Publication date: October 24, 2013
    Inventor: Yann Ly-Gagnon
  • Patent number: 8565343
    Abstract: A device and method for adjusting transmit power in a wireless communication device. The wireless communication device comprises a transmitter having a power amplifier, wherein the amplifier may introduce distortion into the transmit signal. The method may periodically determine an error vector magnitude (EVM) level in the transmitter of the wireless communication device. The EVM level may be determined based on differences between an ideal transmit signal without amplification, and an actual transmit signal with amplification. The method may then adjust one or more transmit gain settings of at least one gain stage of the wireless device based on the measured EVM level in the transmitter. In one embodiment, as the EVM increases, indicating that more distortion is being introduced, the method may reduce the gain settings of the gain stage(s) to reduce this distortion. If the EVM decreases, the method may increase the gain of the gain stage(s).
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: October 22, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Paul J. Husted, Michael P. Mack, Soner Ozgur, Yann Ly-Gagnon
  • Publication number: 20130202068
    Abstract: A mechanism can be implemented for reducing the power consumption of a wireless radio device in establishing a wireless connection by utilizing a wideband signal to detect a narrowband trigger signal at a potential narrowband trigger frequency. The wireless radio device may operate a wideband receiver to receive an RF signal. Being aware of the potential narrowband trigger frequencies, the wideband receiver may utilize the received RF signal to detect the presence of a narrowband trigger signal at one of the potential narrowband trigger frequencies.
    Type: Application
    Filed: February 6, 2012
    Publication date: August 8, 2013
    Applicant: QUALCOMM ATHEROS, INC.
    Inventors: Yann Ly-Gagnon, Paul J. Husted, Olaf J. Hirsch
  • Patent number: 8489045
    Abstract: A system and method for measuring transmission power distortion in a wireless communication device are disclosed. In one embodiment, the method comprises reading an operating temperature of the wireless communication device and enabling a loopback path between a transmission circuit and a receiver circuit of the wireless communication device. Using the loopback path, the wireless communication device can calibrate the transmission power output by storing data for compensating the distortion of the transmission power. The data can be stored in a calibration look up table for use by the wireless communication device.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: July 16, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Yann Ly-Gagnon
  • Publication number: 20130155926
    Abstract: A mechanism can be implemented in a communication unit of a network device to utilize periods of silence encountered in voice communication to conserve power at the network device. In some embodiments, it can be determined that one or more packets of a received RF signal comprise audio data. The communication unit of the network device can determine whether the audio data associated with the one or more packets comprises voice information. The network device can switch to a power save mode based, at least in part, on determining that the audio data associated with the one or more packets does not comprise voice information.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 20, 2013
    Applicant: Qualcomm Atheros, Inc.
    Inventors: Yann Ly-Gagnon, Paul J. Husted, Michael Peter Mack
  • Publication number: 20130051503
    Abstract: A device and method are disclosed for reducing the power consumption of a wireless radio device in establishing a wireless connection by predicting a probability of a positive correlation. The wireless radio device may power up a radio receiver of a connectable device to receive a portion of a sync word from a requesting device, determine a correlation value based on the received portion of the sync word and an expected sync word and if the correlation value is less than a threshold value, power down the radio receiver of the connectable device. Additionally, if the correlation value is greater than a threshold value, the entire sync word may be received from the requesting device and a correlation value may be determined based on the entire sync word and the expected sync word.
    Type: Application
    Filed: August 23, 2011
    Publication date: February 28, 2013
    Inventors: Yann Ly-Gagnon, Paul Husted, Olaf Josef Hirsch
  • Patent number: 8351492
    Abstract: Embodiments of the present invention provide an apparatus comprising a transceiver having a receiver and a transmitter connected through a segment of a calibration loop back path. The apparatus also comprises a control system configured to communicate with the transceiver. The calibration loop back path has an intentional phase shift that can be toggled between an off state and an on state by the control system. The control system is configured to calculate the intentional phase shift by examining the difference of a first and second phase angle. The first phase angle is obtained from the transmission of a first pair of signals with the intentional phase shift in the off state. The second phase angle is obtained from the transmission of a second pair of signals with the intentional phase shift in the on state.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: January 8, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Yann Ly-Gagnon