Patents by Inventor Ismail Lakkis

Ismail Lakkis 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: 8681841
    Abstract: A method of communication comprises partitioning a single-carrier data stream into equal-size blocks, and partitioning each block into a plurality of equal-size sub-blocks. A first set of cyclic prefixes and/or postfixes is inserted into the blocks to allow a linear convolution of a frequency-selective multipath channel having a long delay spread to be modeled as a circular convolution at a receiver. A second set of cyclic prefixes and/or postfixes is inserted into the sub-blocks to allow a linear convolution of a frequency-selective multipath channel having a short delay spread to be modeled as a circular convolution at the receiver. Upon receiving a transmitted data frame from the multipath channel, the receiver measures a link quality index (LQI) of a short channel impulse response; and selects block-by-block equalization or sub-block by sub-block equalization based on the LQI.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: March 25, 2014
    Assignee: Adeptence, LLC
    Inventor: Ismail Lakkis
  • Publication number: 20140079051
    Abstract: A medical sensor system comprises a gateway comprising a wideband receiver and a narrow band transmitter, the each gateway configured to receive a wideband positioning frame using the wideband receiver from one or more wearable sensors and to transmit acknowledgement frames using the narrow band transmitter that include timing and control data for use by the sensors to establish timing for transmission of the positioning frame; and at least one wearable sensor comprising a wideband transmitter and a narrow band receiver, the sensor configured to transmit a sensor data frame to the gateway using the wideband transmitter and to receive an acknowledgement frame from the gateway using the narrow band receiver, extract timing and control information from the frame, and adjust the timing and synchronization of the wideband transmitter using the timing and control information.
    Type: Application
    Filed: November 18, 2013
    Publication date: March 20, 2014
    Applicant: ADEPTENCE, LLC
    Inventors: Ismail Lakkis, Hock Law
  • Publication number: 20140016676
    Abstract: Certain aspects of the present disclosure relate to a method for generating Golay codes and generalized Golay codes in a wireless communication system, and for efficient spreading at a transmitter and despreading at a receiver.
    Type: Application
    Filed: September 17, 2013
    Publication date: January 16, 2014
    Inventor: Ismail Lakkis
  • Patent number: 8615050
    Abstract: Certain aspects of the present disclosure relate to methods for beamforming that achieve beamforming optimality criterions. Some proposed beamforming techniques are based on antenna directions with multiple resolutions.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: December 24, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Ismail Lakkis
  • Patent number: 8611401
    Abstract: In a millimeter-wave radar, full-duplex operation comprises identifying a leakage signal in a digital baseband received signal, estimating the leakage signal, synthesizing an estimated leakage signal, and subtracting the estimated leakage signal from the digital baseband received signal. The time interval during which the leakage signal occurs may be measured, and samples of the digital baseband received signal within the time interval are masked to remove the leakage.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: December 17, 2013
    Assignee: Adeptence, LLC
    Inventor: Ismail Lakkis
  • Patent number: 8588284
    Abstract: A medical sensor system comprises a gateway comprising a wideband receiver and a narrow band transmitter, the each gateway configured to receive a wideband positioning frame using the wideband receiver from one or more wearable sensors and to transmit acknowledgement frames using the narrow band transmitter that include timing and control data for use by the sensors to establish timing for transmission of the positioning frame; and at least one wearable sensor comprising a wideband transmitter and a narrow band receiver, the sensor configured to transmit a sensor data frame to the gateway using the wideband transmitter and to receive an acknowledgement frame from the gateway using the narrow band receiver, extract timing and control information from the frame, and adjust the timing and synchronization of the wideband transmitter using the timing and control information.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: November 19, 2013
    Assignee: Adeptence, LLC
    Inventors: Ismail Lakkis, Hock Law
  • Patent number: 8583995
    Abstract: An apparatus is configured to perform both Fourier transform processing and Golay code processing. Each of a plurality of processing elements comprises a delay element configured for providing a predetermined delay to at least a first input signal, at least one seed vector insertion element configured for multiplying at least a second input signal by at least one seed-vector value for producing at least one scaled input signal value, and at least one multiplexer configurable by at least one control signal for selecting an operating mode of the apparatus. At least one twiddle-factor multiplier is coupled between stages of the processing elements and employed for Fourier transform processing. The apparatus may be configured to perform both multi-mode and multi-band operation.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: November 12, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Ismail Lakkis
  • Patent number: 8582622
    Abstract: Certain aspects of the present disclosure relate to a method for generating spread-spectrum coded signals for transmission in a wireless communication system, and particularly for generating spread sequences of data with spreading codes that facilitate computationally efficient frequency-domain processing at a receiver.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: November 12, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Ismail Lakkis
  • Patent number: 8576893
    Abstract: A high data rate UWB system implements a frame structure that uses a connected set of m-sequences comprising the lowest possible cross-correlation and perfect, or near perfect autocorrelation. Each m-sequence can be used to identify a different piconet A very efficient code matched filter can then be used to decode the frames and achieve synchronization with a piconets.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: November 5, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Ismail Lakkis
  • Patent number: 8576821
    Abstract: A wireless network uses an improved frame structure to increase timing acquisition capabilities as well as reduction of spectral lines. In one aspect, the frame packet can be used to communicate the different modes of operation under which the packet was created.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: November 5, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Ismail Lakkis
  • Publication number: 20130272344
    Abstract: Certain aspects of the present disclosure relate to a method for acquisition of a received spread spectrum signal transmitted over a wired or wireless medium.
    Type: Application
    Filed: February 20, 2013
    Publication date: October 17, 2013
    Inventor: Ismail Lakkis
  • Publication number: 20130266045
    Abstract: Transceiver calibration is a critical issue for proper transceiver operation. The transceiver comprises at least one RF transmit chain and one RF receive chain. A closed loop path is formed from the digital block, the RF transmit chain, the substrate coupling, the RF receive chain back to the digital block and is used to estimate and calibrate the transceiver parameters over the operating range of frequencies. The substrate coupling eliminates the need for the additional circuitry saving area, power, and performance. In place of the additional circuitry, the digital block which performs baseband operations can be reconfigured into a software or/and hardware mode to calibrate the transceiver. The digital block comprises a processor and memory and is coupled to the front end of the RF transmit chain and the tail end of the RF receive chain.
    Type: Application
    Filed: April 9, 2012
    Publication date: October 10, 2013
    Applicant: Tensorcom, Inc.
    Inventor: Ismail Lakkis
  • Publication number: 20130251003
    Abstract: A method for wireless positioning includes: receiving by a plurality of controllers using wideband receivers a wideband positioning frame from one or more devices and transmitting using narrow band transmitters acknowledgement frames including timing and control data for use by the one or more devices to establish timing for transmission of the positioning frame; and transmitting using a wideband transmitter by at least one of the devices the positioning frame to the plurality of controllers and receiving using a narrow band receiver the acknowledgement frame from one or more of the plurality of controllers, extracting timing and control information from the acknowledgement frame, and adjusting a timing and synchronization of the wideband transmitter using the timing and control information.
    Type: Application
    Filed: May 16, 2013
    Publication date: September 26, 2013
    Inventors: Ismail Lakkis, Hock Law
  • Patent number: 8537878
    Abstract: A method for communicating comprises generating at least one spreading code from a preferred Golay generator and/or a preferred generalized Golay generator. The preferred generalized Golay generator may comprise a plurality of preferred Golay generators. The outputs of the preferred Golay generator are logic 0 and 1. Each stage of the preferred Golay generator may comprise a single basic storage unit, such as a Flip-Flop. Generalized Golay codes comprise pseudo-complementary sequences having code lengths that differ from Golay complementary sequences and are characterized by low autocorrelation sidelobes relative to the autocorrelation peak.
    Type: Grant
    Filed: April 26, 2009
    Date of Patent: September 17, 2013
    Assignee: Adeptence, LLC
    Inventor: Ismail Lakkis
  • Patent number: 8532586
    Abstract: A high-speed transmitter and receiver are provided. In one embodiment, a transmitter comprises a baseband processor structured to receive data and to convert the data into a multiplicity of high and low signal values, with each high and low signal value having a first timing interval. A local oscillator generates a clock signal at a second timing interval and a digital circuit combines the high and low signal values with the clock signal to produce a transmission signal directly at a transmission frequency. A receiver is configured to receive the signal. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: September 10, 2013
    Assignee: Intellectual Ventures Holding 73 LLC
    Inventors: Ismail Lakkis, Yasaman Bahreini, John Santhoff
  • Patent number: 8527853
    Abstract: A Golay-code generator configured for generating Golay complementary code pairs comprises a sequence of delay elements configured for providing a predetermined set of fixed delays to at least a first input signal and a sequence of adaptable seed vector insertion elements configured for multiplying at least a second input signal by a variable seed vector, wherein each of a plurality of seed vectors corresponds to at least one predetermined piconet. The Golay-code generator may further comprise multiplexers configured for switching inputs and outputs of at least two delay elements in the sequence of delay elements to produce a plurality of compatible delay vectors. The Golay-code generator may further comprise a code-truncation module configured to shorten the Golay complementary code pairs for producing a plurality of daughter codes.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: September 3, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Ismail Lakkis
  • Patent number: 8477827
    Abstract: Certain aspects of the present disclosure relate to a method for generating spread-spectrum coded signals for transmission in a wireless communication system, and particularly for generating spread sequences of data with spreading codes that facilitate computationally efficient frequency-domain processing at a receiver.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: July 2, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Ismail Lakkis
  • Patent number: 8472497
    Abstract: A wireless device comprises a code-assignment module configured for assigning Golay codes to be used for spreading, a spreading module configured for spreading data with the Golay codes to produce a signal, wherein the Golay codes are randomly used to spread the data, and a transmitter configured for transmitting the signal. The wireless device may transmit a first beacon signal via a set of quasi-omni beam patterns, and a second beacon signal via a set directional beam patterns. The first beacon signal has a first transmission rate that is higher than the second beacon signal's the transmission rate. Extended Golay codes having zero periodic cross-correlation may be generated from a Golay code and a set of short sequences. A data block transmitted by the wireless device may comprise Golay codes and data portions, wherein every data portion is between two Golay codes and every Golay code is between two data portions.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: June 25, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Ismail Lakkis
  • Patent number: 8467331
    Abstract: Certain aspects of the present disclosure relate to a method for generating a frame structure that can be used with multiple transmission schemes, such as a Single Carrier (SC) transmission scheme and an Orthogonal Frequency Division Multiplexing (OFDM) transmission scheme.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: June 18, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Ismail Lakkis
  • Patent number: 8457180
    Abstract: A positioning system comprises a plurality of controllers, each controller comprising a wideband receiver and a narrow band transmitter, the each controller configured to receive a wideband positioning frame using the wideband receiver from one or more devices and to transmit acknowledgement frames using the narrow band transmitter that include timing and control data for use by the devices to establish timing for transmission of the positioning frame; and at least one device comprising a wideband transmitter and a narrow band receiver, the device configured to transmit a positioning frame to the plurality of controllers using the wideband transmitter and to receive an acknowledgement frame from one or more controllers using the narrow band receiver, extract timing and control information from the frame, and adjust the timing and synchronization of the wideband transmitter using the timing and control information.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: June 4, 2013
    Assignee: Adeptence, LLC
    Inventors: Ismail Lakkis, Hock Law