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:
Aug. 18, 2015

Filed:

Jun. 09, 2014
Applicant:

Xilinx, Inc., San Jose, CA (US);

Inventors:

Weirong Jiang, San Jose, CA (US);

Gordon J. Brebner, Wrightington, GB;

Yi-Hua Yang, San Jose, CA (US);

Assignee:

XILINX, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/173 (2006.01); G06F 1/04 (2006.01); G05B 19/045 (2006.01);
U.S. Cl.
CPC ...
G06F 1/04 (2013.01); G05B 19/045 (2013.01);
Abstract

In an FSM circuit, look-ahead-cascade modules are coupled to receive possible states and corresponding subsets of data inputs. Merge modules are coupled to a second-to-the-lowest to highest order of the look-ahead-cascade modules. The second-to-the-lowest to highest order of disambiguation modules are coupled to at least a portion of the merge modules. The lowest order of the disambiguation modules is coupled to the lowest order of the look-ahead-cascade modules. The lowest-to-highest order of the disambiguation modules are coupled to receive respective sets of interim states of rN states each to select respective sets of next states of r states each. A state register is coupled to receive a portion of the highest order of the sets of next states to provide a select signal. Each of the disambiguation modules is coupled to receive the select signal for selection of the sets of next states of the r states each.


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