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.
Patent No.:
Date of Patent:
Aug. 06, 2013
Filed:
May. 18, 2011
Virgile Javerliac, Grenoble, FR;
Virgile Javerliac, Grenoble, FR;
ARM Limited, Cambridge, GB;
Abstract
An integrated circuit includes processing circuitry that includes a plurality of critical path circuits. These critical path circuits include variable delay circuits which add an additional delay in to a path delay through each of the critical path circuits so as to adjust the path delay to match a target path delay. Variable delay circuit includes a tank capacitor which is charged or discharged to generate a control voltage. This control voltage serves to control a power supply voltage fed to an inverter chain. Variation in the power supply voltage of the inverter chain adjust the propagation speed of a processing signal through the inverter chain and accordingly adjusts the additional delay imposed by the variable delay circuit.