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:
Nov. 14, 2017

Filed:

May. 06, 2017
Applicant:

Microsoft Technology Licensing, Llc, Redmond, WA (US);

Inventors:

Robert W. Havlik, Fort Collins, CO (US);

Michael J. Erickson, Fort Collins, CO (US);

Amar Vattakandy, Longmont, CO (US);

Derek E. Gladding, Pacifica, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 7/40 (2006.01); H03M 7/42 (2006.01); H03M 7/30 (2006.01);
U.S. Cl.
CPC ...
H03M 7/42 (2013.01); H03M 7/30 (2013.01); H03M 7/40 (2013.01); H03M 7/4006 (2013.01);
Abstract

In some data compression algorithms and/or standards, the compressed data comprises variable length symbols. A set of parallel decoders speculatively decode/decompress a window (i.e., sub-block) of data. Each of the decoders attempts to decode/decompress a symbol that starts at a different location in the compressed data block. Once the decoders have finished decoding a symbol (or determined that a valid symbol does not begin at the beginning of the window assigned to that decoder), a symbol strider selects the decoder outputs corresponding to valid symbols. The symbol strider successively selects decoder outputs based on the size of the previous symbols that were found to be valid. When the next valid symbol begins outside the current window, its location is stored to indicate the location of the next valid symbol in a subsequent window.


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