Patent · US Active

On-chip frequency monitoring

US10514401B2 · kind B2 · utility

1Cited by

8References

21Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Bipin Duggal · Delhi, IN
Rahul Gulati · San Diego, US
Sina Dena · San Diego, US

Key dates

Filing date	Aug 2, 2017
Grant date	Dec 24, 2019
Priority date	—
Expiry date	Nov 10, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01R23/14
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In certain aspects of the disclosure, a frequency monitor includes a counter configured to receive a monitored clock signal, to count a number of periods of the monitored clock signal over a predetermined time duration, and to output a count value corresponding to the number of periods of the monitored clock signal. The frequency monitor also includes a comparator configured to receive the count value from the counter, to receive an expected count value, to compare the count value from the counter with the expected count value, and to output a pass status signal or a fail status signal based on the comparison.

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