Patents by Inventor John Witzgall

John Witzgall 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 system for embedding a data message in a pilot signal
    Patent number: 8159987
    Abstract: Disclosed herein is a method for data communication between a wireless-communication system and one or more wireless-communication devices. The wireless-communication system broadcasts a standard pilot signal over a pilot channel. The method comprises (a) the wireless-communication system transmitting a first broadcast-mode message in a coverage area of the wireless-communication system, wherein the first broadcast-mode message indicates that the wireless-communication system will be operating in an alternative broadcast mode, and (b) the wireless-communication system operating in the alternative broadcast mode. Operating in the alternative broadcast involves (i) generating a modified pilot signal comprising the standard pilot signal and a data message inserted in the standard pilot signal and (ii) broadcasting the modified pilot signal via the pilot channel, which enables a wireless-communication device receiving the modified pilot signal to extract the data message therefrom.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: April 17, 2012
    Assignee: Sprint Spectrum L.P.
    Inventors: Piyush Upadhyay, William Routt, Debashis Haldar, John Witzgall, Badri Subramanyan
  • Method and system for embedding a data message in a pilot signal
    Patent number: 8054772
    Abstract: Disclosed herein is a method for data communication between a wireless-communication system and one or more wireless-communication devices. The wireless-communication system broadcasts a standard pilot signal over a pilot channel. The method comprises (a) the wireless-communication system transmitting a first broadcast-mode message in a coverage area of the wireless-communication system, wherein the first broadcast-mode message indicates that the wireless-communication system will be operating in an alternative broadcast mode, and (b) the wireless-communication system operating in the alternative broadcast mode. Operating in the alternative broadcast involves (i) generating a modified pilot signal comprising the standard pilot signal and a data message inserted in the standard pilot signal and (ii) broadcasting the modified pilot signal via the pilot channel, which enables a wireless-communication device receiving the modified pilot signal to extract the data message therefrom.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: November 8, 2011
    Assignee: Sprint Spectrum L.P.
    Inventors: Piyush Upadhyay, William Routt, Debashis Haldar, John Witzgall, Badri Subramanyan