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).

  • METHOD AND APPARATUS FOR CONSTANT ENVELOPE DEMODULATION
    Publication number: 20100309959
    Abstract: Certain aspects of the present disclosure relate to a method for demodulating CPM modulated signals transmitted in a wired or wireless communication system using a linear modulation model consisting of a linear superposition of time pulses modulated using pseudo-PSK pulses.
    Type: Application
    Filed: June 9, 2009
    Publication date: December 9, 2010
    Inventor: Ismail Lakkis
  • METHOD AND APPARATUS FOR CONSTANT ENVELOPE MODULATION
    Publication number: 20100310009
    Abstract: Certain aspects of the present disclosure relate to a method for modulating single carrier signals using constant envelope 2-CPM modulation and quasi-constant envelope filtered continuously rotated pseudo-PSK modulation in a wireless communication system.
    Type: Application
    Filed: June 9, 2009
    Publication date: December 9, 2010
    Inventor: Ismail Lakkis
  • METHOD AN APPARATUS FOR LOW DENSITY PARITY CHECK CODES ENCODING AND DECODING
    Publication number: 20100287438
    Abstract: Certain aspects of the present disclosure relate to a method for generating a single rate or multi-rate highly structured low density parity check, encoding a data stream with the generated LDPC matrix for transmission in a wireless communication system, and for efficient LDPC decoding at a receiver.
    Type: Application
    Filed: May 7, 2009
    Publication date: November 11, 2010
    Inventor: Ismail Lakkis
  • METHOD AND APPARATUS FOR PACKET ACQUISITION
    Publication number: 20100284444
    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: May 6, 2009
    Publication date: November 11, 2010
    Inventor: Ismail Lakkis
  • HIGH SPEED LOW DENSITY PARITY CHECK CODES ENCODING AND DECODING
    Publication number: 20100281328
    Abstract: Certain aspects of the present disclosure relate to a method for generating a single rate or multi-rate highly structured low density parity check, encoding a data stream with the generated LDPC matrix for transmission in a wireless communication system, and for efficient LDPC decoding at a receiver.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Inventor: Ismail Lakkis
  • SPREAD SPECTRUM ENCODING AND DECODING
    Publication number: 20100272157
    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 for efficient despreading at a receiver.
    Type: Application
    Filed: April 26, 2009
    Publication date: October 28, 2010
    Inventor: ISMAIL LAKKIS
  • SPREAD-SPECTRUM CODS GENERATION
    Publication number: 20100272158
    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: April 26, 2009
    Publication date: October 28, 2010
    Inventor: Ismail Lakkis
  • SPREAD-SPECTRUM MODULATION AND DEMODULATION
    Publication number: 20100272154
    Abstract: Certain aspects of the present disclosure relate to a method for modulating and demodulating a spread-spectrum data stream using multiple generalized Golay codes.
    Type: Application
    Filed: April 26, 2009
    Publication date: October 28, 2010
    Inventor: Ismail Lakkis
  • SYSTEMS AND METHODS FOR A TURBO LOW-DENSITY PARITY-CHECK DECODER
    Publication number: 20100174964
    Abstract: A method for forming a plurality of parity check matrices for a plurality of data rates for use in a Low-Density Parity-Check (LDPC) decoder, comprises establishing a first companion exponent matrix corresponding to a first parity check matrix for a first data rate, and partitioning the first parity check matrix and the first companion exponent matrix into sub-matrices such that the first parity check matrix is defined using a cyclical shift of an identity matrix.
    Type: Application
    Filed: July 7, 2009
    Publication date: July 8, 2010
    Applicant: QUALCOMM Incorporated
    Inventor: Ismail Lakkis
  • METHOD AND APPARATUS FOR SIGNALING TRANSMISSION CHARACTERISTICS IN A WIRELESS COMMUNICATION NETWORK
    Publication number: 20100157907
    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: Application
    Filed: February 10, 2010
    Publication date: June 24, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Mohammad Hossein Taghavi Nasrabadi, Hemanth Sampath, Avinash Jain, Ismail Lakkis
  • METHOD AND APPARATUS FOR CHANNEL ACCESS IN A WIRELESS COMMUNICATIONS SYSTEM
    Publication number: 20100118835
    Abstract: A method of wireless communications is provided. The method includes transmitting a channel time allocation request from a first device to a second device, wherein the channel time allocation request comprises a list of devices to be trained by the first device; receiving a channel time allocation granted by the second device; and transmitting, from the first device, at least one training packet to at least one device in the list of devices to be trained during the channel time allocation granted by the second device. An apparatus for performing the method is also disclosed.
    Type: Application
    Filed: June 12, 2009
    Publication date: May 13, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Ismail Lakkis, Vered Bar Bracha
  • METHOD AND APPARATUS FOR DIRECTIONAL CLEAR CHANNEL ASSESSMENT IN A WIRELESS COMMUNICATIONS SYSTEM
    Publication number: 20100118716
    Abstract: A method of communication is provided. The method includes detecting at least a portion of a preamble of a packet transmitted by a first device by sweeping over a plurality of receive directions; receiving and decoding a header of the packet based on a first receive direction to identify that the first device had transmitted the packet; and completing reception of the packet based on a second receive direction. An apparatus for performing the method is also disclosed.
    Type: Application
    Filed: June 12, 2009
    Publication date: May 13, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Ismail Lakkis, Vered Bar Bracha
  • METHOD AND APPARATUS FOR DIRECTIONAL CHANNEL ACCESS IN A WIRELESS COMMUNICATIONS SYSTEM
    Publication number: 20100118749
    Abstract: A method of wireless communications is provided. The method includes detecting at least a portion of a preamble of a packet transmitted by a first device by sweeping over a plurality of receive directions; receiving and decoding a header of the packet based on a first receive direction to identify that the first device had transmitted the packet; and completing reception of the packet based on a second receive direction. An apparatus for performing the method is also disclosed.
    Type: Application
    Filed: June 12, 2009
    Publication date: May 13, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Ismail Lakkis, Vered Bar Bracha
  • METHOD AND APPARATUS FOR DIRECTIONAL ASSOCIATION IN A WIRELESS COMMUNICATIONS SYSTEM
    Publication number: 20100118802
    Abstract: A method of wireless communications is provided. The method includes transmitting, from the first device to the second device, at least one association request having a plurality of packets, each packet being respectively transmitted in a different direction; detecting an association response from the second device; and determining a preferred first device to second device direction of transmission based on the association response. An apparatus for performing the method is also disclosed.
    Type: Application
    Filed: June 12, 2009
    Publication date: May 13, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Ismail Lakkis, Vered Bar Bracha
  • CODES AND PREAMBLES FOR SINGLE CARRIER AND OFDM TRANSMISSIONS
    Publication number: 20100086076
    Abstract: Certain aspects of the present disclosure relate to a method for generating a frame structure suitable for use in both single carrier (SC) and Orthogonal Frequency Division Multiplexing (OFDM) transmission modes, while ensuring accurate channel estimation at a receiver.
    Type: Application
    Filed: October 2, 2009
    Publication date: April 8, 2010
    Applicant: QUALCOMM Incorporated
    Inventor: Ismail Lakkis
  • METHOD AND APPARATUS FOR HIGH SPEED STRUCTURED MULTI RATE LOW DENSITY PARITY CHECK CODES
    Publication number: 20100088573
    Abstract: Certain aspects of the present disclosure relate to a method for designing structured multi-rate low-density parity-check (LDPC) codes. These LDPC codes can be also adapted to support efficient encoding.
    Type: Application
    Filed: July 1, 2009
    Publication date: April 8, 2010
    Applicant: QUALCOMM Incorporated
    Inventor: ISMAIL LAKKIS
  • Frequency synthesizer
    Patent number: 7683724
    Abstract: A voltage-controlled ring oscillator comprises a ring oscillator having a plurality of differential delay stages for generating signals having a common programmable oscillation frequency with different phases, and a pair of single-sideband mixers coupled to the differential delay stages for producing in-phase and quadrature phase signals having a frequency that is higher than the oscillation frequency.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: March 23, 2010
    Assignee: QUALCOMM Incorporated
    Inventor: Ismail Lakkis
  • COMMON MODE AND UNIFIED FRAME FORMAT
    Publication number: 20100061320
    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: Application
    Filed: July 1, 2009
    Publication date: March 11, 2010
    Applicant: QUALCOMM Incorporated
    Inventor: Ismail Lakkis
  • COMMON-MODE PARTITIONING OF WIDEBAND CHANNELS
    Publication number: 20100054199
    Abstract: Certain aspects of the present disclosure relate to a method for allocating a plurality of logical channels within each wideband channel specified by the IEEE 802.15.3c standard. Each logical channel can utilize the same wideband channel, but the logical channel can also utilize a narrowband channel (i.e., a low data rate (LDR) channel) for control and signaling. The logical channel may function as a common mode channel for multi-mode operations. A piconet controller (PNC) within a piconet can utilize the LDR for beaconing, association, and for assigning Channel Time Allocations (CTAs). Inside a CTA period, multiple devices in the piconet can communicate using a single-carrier mode, an OFDM mode, or some other mode.
    Type: Application
    Filed: April 6, 2009
    Publication date: March 4, 2010
    Applicant: QUALCOMM Incorporated
    Inventor: Ismail Lakkis
  • SYSTEMS AND METHODS FOR HIGH DATA RATE ULTRA WIDEBAND COMMUNICATION
    Publication number: 20100027587
    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: Application
    Filed: October 13, 2009
    Publication date: February 4, 2010
    Applicant: QUALCOMM Incorporated
    Inventor: Ismail Lakkis