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:
Jun. 16, 2015

Filed:

Jun. 02, 2014
Applicant:

Tidal Systems, Sunnyvale, CA (US);

Inventors:

Yingquan Wu, Palo Alto, CA (US);

Alexander Hubris, San Jose, CA (US);

Assignee:

TIDAL SYSTEMS, Santa Clara, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03M 7/34 (2006.01); H03M 7/30 (2006.01); H03M 7/40 (2006.01);
U.S. Cl.
CPC ...
H03M 7/3086 (2013.01); H03M 7/40 (2013.01);
Abstract

A compression algorithm is disclosed in which compressibility of an input frame is determined. If a frame is found to be compressible, it is input to a compression algorithm, otherwise the frame may bypass the compression algorithm. Literals of length N bits in a frame are sorted into 2^N bins such a counter Bindicates a number of literals of value i. The maximum and minimum counter values are evaluated to estimate the compressibility of the file. For example, if Bis the maximum counter value and Bis the minimum counter value, then If B<A*B(A being a value greater than 1, e.g. 4), the frame may be deemed to be uncompressible, otherwise the frame may be deemed to be compressible and compressed according to the DEFLATE algorithm or some other compression algorithm.


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