Apparatus and method for implementing a scalable digital infrastructure for measuring ring oscillators
US12332306B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2022 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Jun 24, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/0315
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus has a collection of ring oscillators. An instruction register block is configured to sequentially address and activate each ring oscillator in the collection of ring oscillators. A multiplexer with input lines is connected to each ring oscillator in the collection of ring oscillators and an output line. A pulse counter is connected to the output line of the multiplexer to count the number of oscillations of a selected ring oscillator within a selected time period to form a multiple bit frequency count output signal. A data shift register receives the multiple bit frequency count output signal and produces a serial frequency count output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.