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:
Oct. 10, 2017

Filed:

May. 20, 2015
Applicant:

Altera Corporation, San Jose, CA (US);

Inventors:

Martin Langhammer, Salisbury, GB;

Simon Peter Finn, High Wycombe, GB;

Assignee:

Altera Corporation, San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 17/06 (2006.01); G06F 7/544 (2006.01);
U.S. Cl.
CPC ...
H03H 17/06 (2013.01); G06F 7/5443 (2013.01); H03H 2220/04 (2013.01); H03H 2220/06 (2013.01);
Abstract

Circuitry that accepts a data input and an enable input, and generates an output sum based on the data input includes an input stage circuit that includes an input register. The input register accepts the enable input. The circuitry further includes a systolic register operatively connected to the input stage circuit, and the systolic register is operated without any enable connection. The circuitry further includes a multiplier connected to the systolic register, which is configured to generate a product value. The circuitry further includes an output stage circuit that includes an adder that calculates the output sum based least in part on the product value.


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