Patent · US Active

Ring oscillator-based analog-to-digital converter

US11038523B2 · kind B2 · utility

0Cited by

2References

21Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Jens Sauerbrey · Munich, DE
Jacinto San Pablo Garcia · Neubiberg, DE
Enara Ortega · Unterhaching, DE

Key dates

Filing date	Jun 26, 2019
Grant date	Jun 15, 2021
Priority date	—
Expiry date	Jun 26, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH03M3/458
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A ring oscillator-based analog-to-digital converter (ADC). The ring oscillator-based ADC includes a ring oscillator and a transition detector. The ring oscillator may include a set of inverters coupled in a ring wherein an output of an inverter is coupled to an input of a successive inverter in the ring. The transition detector is configured to detect transitions of outputs of the inverters by comparing outputs of two separate inverters at two consecutive time instances. The transition detector may include two sets of registers configured to store outputs of the set of inverters at two consecutive time instances, respectively, and a set of comparators configured to compare the outputs stored in the two sets of registers. Each comparator may be configured to compare an output of one inverter at a first time instance and an output of another inverter at a second time instance.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.