The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 13, 2007

Filed:

Apr. 02, 2002
Applicants:

Anna C. Gilbert, Summit, NJ (US);

Sudipto Guha, Philadelphia, PA (US);

Piotr Indyk, Cambridge, MA (US);

Ioannis Kotidis, Morris Plains, NJ (US);

Shanmugavelayutham Muthukrishnan, Washington, DC (US);

Martin J. Strauss, Summit, NJ (US);

Inventors:

Anna C. Gilbert, Summit, NJ (US);

Sudipto Guha, Philadelphia, PA (US);

Piotr Indyk, Cambridge, MA (US);

Ioannis Kotidis, Morris Plains, NJ (US);

Shanmugavelayutham Muthukrishnan, Washington, DC (US);

Martin J. Strauss, Summit, NJ (US);

Assignee:

AT&T Corp., New York, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 1/16 (2006.01); H04J 3/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

A system and method are provided for monitoring dynamic data from distributed sources through the use of histograms. In the method, an array sketch of the digital signal is determined, a robust histogram is constructed from the array sketch, and an output histogram is constructed from the array sketch and the robust histogram via a hybrid histogram. Dyadic intervals of a representation of the array sketch are used in constructing the robust histogram.


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