Patents by Inventor Paul Joseph Schachter

Paul Joseph Schachter 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 to gain access to a base station in a discrete multitone spread spectrum communications system
    Patent number: 6002664
    Abstract: In a discrete multitone spread spectrum system, a base station distinguishes between normal collisions and noise bursts when receiving access request signals from remote units on a common access channel. The base station is then able to reply to the remote units with information about the quality of the common access channel and why their transmissions were not successful. The remote units then use this information to adapt their retry processes to the channel's quality, depending on whether there was a noise burst, a normal collision, or a successful transmission on the channel.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: December 14, 1999
    Assignee: AT&T Wireless Services Inc.
    Inventor: Paul Joseph Schachter