Patents by Inventor Sudipto Cuha

Sudipto Cuha 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 apparatus for using histograms to product data summaries
    Patent number: 7417954
    Abstract: A system and method are provided for summarizing dynamic data from distributed sources through the use of histograms. In particular, the method comprises receiving a first data signal at a first location, determining a first array sketch of the first data signal, and constructing a first output histogram from the first array sketch and a first robust histogram via a first hybrid histogram. Array sketches of a number of data signals may be calculated, and added to yield a single vector sum. The histogram is constructed from the vector sum. In that way, the vector sum may be analyzed without revealing the individual data signals that form the basis of the sum.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: August 26, 2008
    Assignee: AT&T Corp.
    Inventors: Anna C. Gilbert, Sudipto Cuha, Piotr Indyk, Ioannis Kotidis, Shanmugavelayutham Muthukrishnan, Martin J. Strauss