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:
Sep. 20, 2022

Filed:

Dec. 19, 2019
Applicant:

Cadence Design Systems, Inc., San Jose, CA (US);

Inventors:

Mitchell Poplack, San Jose, CA (US);

Yuhei Hayashi, San Jose, CA (US);

Assignee:

CADENCE DESIGN SYSTEMS, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/30 (2018.01); G06F 9/455 (2018.01);
U.S. Cl.
CPC ...
G06F 9/30083 (2013.01); G06F 9/30134 (2013.01); G06F 9/455 (2013.01);
Abstract

A pseudorandom logic circuit may be embedded as a hardware within an emulation system, which may generate pseudorandom keephot instructions. A masking logic may mask out portions in each pseudorandom keephot instruction, which may change state elements during execution. A cluster of emulation processors may execute masked pseudorandom keephot instructions to consume power when not executing mission instructions. The cluster of emulation processors may run keephot cycles, during which the cluster of emulation processors may execute the pseudorandom keephot instructions causing the cluster of emulation processors to continue consuming a roughly constant amount of power, either at a same or different voltage level, but supposed outputs of the pseudorandom keephot instructions may have no impact upon inputs and outputs generated during mission cycles.


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