Patents by Inventor Ashley B. Tarokh

Ashley B. Tarokh 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).

  • Narrowband interference rejection for ultra-wideband systems
    Patent number: 8687672
    Abstract: A technique for reducing interference between a direct-sequence ultra-wideband communications system and a narrowband communications system uses interference-rejecting spreading codes to reduce signal power in a frequency band associated with the narrowband communications system. A method of operating an ultra-wideband communications system includes applying an interference-rejecting spreading code to a signal for transmission. The interference-rejecting spreading code is configured to reduce power in a particular frequency band of a transmit or receive power spectral density associated with the ultra-wideband signal without substantially reducing power outside that particular frequency band of the transmit or receive power spectral density associated with the ultra-wideband signal.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: April 1, 2014
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Saeed S. Ghassemzadeh, Jason Vincent Bellorado, Ashley B. Tarokh
  • Narrowband interference rejection for ultra-wideband systems
    Patent number: 8406278
    Abstract: A technique for reducing interference between a direct-sequence ultra-wideband communications system and a narrowband communications system uses interference-rejecting spreading codes to reduce signal power in a frequency band associated with the narrowband communications system. A method of operating an ultra-wideband communications system includes applying an interference-rejecting spreading code to a signal for transmission. The interference-rejecting spreading code is configured to reduce power in a particular frequency band of a transmit or receive power spectral density associated with the ultra-wideband signal without substantially reducing power outside that particular frequency band of the transmit or receive power spectral density associated with the ultra-wideband signal.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: March 26, 2013
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Saeed S. Ghassemzadeh, Jason Vincent Bellorado, Ashley B. Tarokh
  • NARROWBAND INTERFERENCE REJECTION FOR ULTRA-WIDEBAND SYSTEMS
    Publication number: 20100304681
    Abstract: A technique for reducing interference between a direct-sequence ultra-wideband communications system and a narrowband communications system uses interference-rejecting spreading codes to reduce signal power in a frequency band associated with the narrowband communications system. A method of operating an ultra-wideband communications system includes applying an interference-rejecting spreading code to a signal for transmission. The interference-rejecting spreading code is configured to reduce power in a particular frequency band of a transmit or receive power spectral density associated with the ultra-wideband signal without substantially reducing power outside that particular frequency band of the transmit or receive power spectral density associated with the ultra-wideband signal.
    Type: Application
    Filed: November 20, 2009
    Publication date: December 2, 2010
    Inventors: Saeed S. Ghassemzadeh, Jason Vincent Bellorado, Ashley B. Tarokh