Patents by Inventor Alpaslan Y. Demir

Alpaslan Y. Demir 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).

  • Extended local IP access for a converged gateway in a hybrid network
    Patent number: 9198021
    Abstract: The implementation of Local IP Access (LIPA), “Extended” LIPA (ELIPA), and Selected IP Traffic Offload (SIPTO) for the design of a “Converged Gateway” (CGW) are disclosed. The gateway system may provide various features such as femtocell access to local networks, public Internet, and private service provider networks.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: November 24, 2015
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: John L. Tomici, Prabhakar R. Chitrapu, John Cartmell, Rocco Di Girolamo, Jean-Louis Gauvreau, Aravind Kamarajugadda, Chunxuan Ye, Kushanava Laha, Reeteshkumar Varshney, Nicholas J. Podias, Arty Chandra, Alpaslan Y. Demir, Martino Freda, Scott C. Hergenhan, Dale N. Seed, Michael F. Starsinic, Athmane Touag, Onkarnath Upadhyay, Paul L. Russell
  • Blind timing synchronization and low complexity channel estimation in ACO-OFDM systems
    Patent number: 8737191
    Abstract: A wireless transmit/receive unit (WTRU) that may receive an asymmetrically clipped optical orthogonal frequency-division multiplexing (ACO-OFDM) signal is disclosed. The ACO-OFDM signal may include an ACO-OFDM symbol and the ACO-OFDM signal may be generated with or without a pilot or training data. Where the ACO-OFDM signal may not include a pilot or training data, the WTRU may determine a correlation minimum between a first part of N samples of the ACO-OFDM symbol and a second part of N samples of the ACO-OFDM symbol. The correlation minimum may indicate an estimated boundary of the ACO-OFDM symbol which may provide the WTRU with timing synchronization information. Where the ACO-OFDM signal may include one or more ACO-OFDM pilot symbols on one or more pilot subcarriers, the WTRU may interpret an amount of training data included in the one or more ACO-OFDM pilot symbols that may provide information for channel estimation.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: May 27, 2014
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Martino Freda, Alpaslan Y. Demir, Joseph M. Murray
  • Bandwidth management for a converged gateway in a hybrid network
    Patent number: 8588793
    Abstract: Systems and methods for integrating bandwidth management (BWM) equipment into a network in order to manage the use of bandwidth over multiple radio access technologies (RATs) relating to communications between a wireless transmit receive unit and a mobile core network (MCN). When integrating itself into the network, a BWM server may be placed between a MCN and an femto access point. In order for WTRUs to communicate with the MCN through the femto access point and a BWM server, a BWM server may need deep packet inspection capabilities.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: November 19, 2013
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: John L. Tomici, John Cartmell, Prabhakar R. Chitrapu, Rocco Di Girolamo, Jean-Louis Gauvreau, Aravind Kamarajugadda, Chunxuan Ye, Alexander Reznik, Arty Chandra, Kenneth F. Lynch, Scott C. Hergenhan, Kushanava Laha, Reeteshkumar Varshney, Nicholas J. Podias, Alpaslan Y. Demir, Martino Freda, Dale N. Seed, Michael F. Starsinic, Athmane Touag, Onkarnath Upadhyay, Paul L. Russell
  • Bandwidth Management For A Converged Gateway In A Hybrid Network
    Publication number: 20120071168
    Abstract: Systems and methods for integrating bandwidth management (BWM) equipment into a network in order to manage the use of bandwidth over multiple radio access technologies (RATs) relating to communications between a wireless transmit receive unit and a mobile core network (MCN). When integrating itself into the network, a BWM server may be placed between a MCN and an femto access point. In order for WTRUs to communicate with the MCN through the femto access point and a BWM server, a BWM server may need deep packet inspection capabilities.
    Type: Application
    Filed: December 3, 2010
    Publication date: March 22, 2012
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: John L. Tomici, John Cartmell, Prabhakar R. Chitrapu, Rocco Di Girolamo, Jean-Louis Gauvreau, Aravind Kamarajugadda, Chunxuan Ye, Alexander Reznik, Arty Chandra, Kenneth F. Lynch, Scott C. Hergenhan, Kushanava Laha, Reeteshkumar Varshney, Nicholas J. Podias, Alpaslan Y. Demir, Martino Freda, Dale N. Seed, Michael F. Starsinic, Athmane Toug, Onkarnath Upadhyay, Paul L. Russell
  • BLIND TIMING SYNCHRONIZATION AND LOW COMPLEXITY CHANNEL ESTIMATION IN ACO-OFDM SYSTEMS
    Publication number: 20120057872
    Abstract: A wireless transmit/receive unit (WTRU) that may receive an asymmetrically clipped optical orthogonal frequency-division multiplexing (ACO-OFDM) signal is disclosed. The ACO-OFDM signal may include an ACO-OFDM symbol and the ACO-OFDM signal may be generated with or without a pilot or training data. Where the ACO-OFDM signal may not include a pilot or training data, the WTRU may determine a correlation minimum between a first part of N samples of the ACO-OFDM symbol and a second part of N samples of the ACO-OFDM symbol. The correlation minimum may indicate an estimated boundary of the ACO-OFDM symbol which may provide the WTRU with timing synchronization information. Where the ACO-OFDM signal may include one or more ACO-OFDM pilot symbols on one or more pilot subcarriers, the WTRU may interpret an amount of training data included in the one or more ACO-OFDM pilot symbols that may provide information for channel estimation.
    Type: Application
    Filed: February 25, 2011
    Publication date: March 8, 2012
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Martino Freda, Alpaslan Y. Demir, Joseph M. Murray
  • Extended Local IP Access For A Converged Gateway In A Hybrid Network
    Publication number: 20110228750
    Abstract: The implementation of Local IP Access (LIPA), “Extended” LIPA (ELIPA), and Selected IP Traffic Offload (SIPTO) for the design of a “Converged Gateway” (CGW) are disclosed. The gateway system may provide various features such as femtocell access to local networks, public Internet, and private service provider networks.
    Type: Application
    Filed: December 3, 2010
    Publication date: September 22, 2011
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: John L. Tomici, John Cartmell, Prabhakar R. Chitrapu, Rocco Di Girolamo, Jean-Louis Gauvreau, Aravind Kamarajugadda, Chunxuan Ye, Kushanava Laha, Reeteshkumar Varshney, Nicholas J. Podias, Arty Chandra, Alpaslan Y. Demir, Martino Freda, Scott C. Hergenhan, Dale N. Seed, Michael F. Starsinic, Anthmane Touaq, Onkarnath Upadhyay, Paul Russell