Patents by Inventor Evan S. Crandall

Evan S. Crandall 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 communicating multimedia content in a unicast, multicast, simulcast or broadcast environment
    Patent number: 6704576
    Abstract: The invention provides a system and method in which users may join a communication mode such that the multimedia content received by the user is closely matched to a predefined profile. The content may be transmitted by unicast, multicast or radio broadcast. Moreover, depending on an individual's request(s) and that of other users in a network, a user may switch between a radio broadcast, multicast and unicast to meet the user's preferences based on a profile. Profile data may include content type, transmission quality, cost considerations, etc. The two-way nature of the system and method also enable a user to request and receive information and complete transactions.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: March 9, 2004
    Assignee: AT&T Corp.
    Inventors: Ronald J. Brachman, Peter F. Driessen, Evan S. Crandall, Steven L. Greenspan, Mathias Kretschmer, Schuyler Quackenbush, Joseph B. Weinman, Jr.