Method and apparatus of voltage scaling techniques
US8629694B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2012 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Nov 5, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F10/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A voltage scaling circuit includes a first critical path and an edge detection unit. The first critical path includes an input and an output. The edge detection unit includes a first input, a second input, a counter and a time-to-digital converter (TDC). The input of the first critical path is electrically connected to the first input of the edge detection unit, and the output of the critical path is electrically connected to the second input of the edge detection unit. The counter is configured to measure a duration between an active edge of a start signal on the first input of the edge detection unit and an active edge of a stop signal on the second input of the edge detection unit in a clock period basis. The TDC is configured to measure a beginning portion and an end portion of the duration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.