Netronome Systems Assigned Patent

Netronome Systems, Inc., Santa Clara, CA, has been assigned a patent (9,092,284) developed by Stark, Gavin J., Cambridge, Great Britain, for a “entropy storage ring having stages with feedback inputs.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”An entropy storage ring includes an input node, a plurality of serial-connected stages, and an output node. Each stage includes an XOR, (or XNOR) circuit, a delay element having an input coupled to the XOR output, and a combinatorial circuit having an output coupled to a second input of the XOR. The combinatorial circuit may be a NAND, NOR, AND or OR gate. A first input of the XOR is the data input of the stage. The output of the delay element is the data output of the stage. A first input of the combinatorial circuit is coupled to receive an enable bit from a configuration register. A second input of the combinatorial circuit is coupled to the ring output node. In operation, a bit stream is supplied onto the ring input node. Feedback of multiple stages are enabled so that the bit stream undergoes complex permutation as it circulates.“

The patent application was filed on September 25, 2013 (14/037,319).