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:
May. 28, 2013

Filed:

Jun. 30, 2009
Applicants:

Yan Ryan Zhang, Beijing, CN;

Clifford Reader, Saratoga, CA (US);

Peter Farkas, Santa Cruz, CA (US);

Inventors:

Yan Ryan Zhang, Beijing, CN;

Clifford Reader, Saratoga, CA (US);

Peter Farkas, Santa Cruz, CA (US);

Assignee:

Oracle America, Inc., Redwood Shores, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method including receiving a set of input data in a first matrix format. The method further includes compressing the set of input data to obtain a first set of compressed data in a second matrix format, where compressing the set of input data includes using a quantization equation, the quantization equation including Yq(i,j)=[(Y(i,j)+offset)<<n]/qs, where Yq(i,j) represents a coefficient in a matrix of the first set of compressed data having a coordinate (i,j), Y(i,j) represents a coefficient in a matrix of the set of input data having the coordinate (i,j), offset is an integer, << is a first bit-wise shift operator, n is an integer, qs is a real number. The method also includes sending the first set of compressed data to a first destination.


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