Patent · US Active

Power saving technique for voltage-controlled ring oscillator and voltage-controlled ring oscillator-based sigma delta modulator

US10944420B2 · kind B2 · utility

0Cited by

4References

14Claims

0Family size

Assignee

Intel Corporation · US

Inventors

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

Key dates

Filing date	Feb 11, 2020
Grant date	Mar 9, 2021
Priority date	—
Expiry date	Feb 11, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH03M3/464
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A voltage-controlled ring oscillator (VCRO) and a VCRO-based sigma delta modulator having capability of enabling and disabling the VCRO cells. A VCRO includes a plurality of inverters coupled in a ring and a transition detector. The transition detector detects a transition of a first inverter and sends a control signal to enable a second inverter if the transition of the first inverter is detected. The transition detector may include a comparator configured to compare an input and an output of an inverter(s) to detect the transition of the first inverter and a latch configured to hold the control signal until it is reset.

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