Patent · US Active

Circuit, device and method in a circuit

US9013240B2 · kind B2 · utility

0Cited by

2References

17Claims

0Family size

Assignee

Beken Corporation · CN

Inventors

Jiazhou Liu · Shanghai, CN
Dawei Guo · Shanghai, CN

Key dates

Filing date	Mar 1, 2014
Grant date	Apr 21, 2015
Priority date	—
Expiry date	Mar 1, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04B1/1638
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A method in a circuit comprises providing a first clock by a resistor-capacitor (RC) oscillator; demodulating a plurality of input signals to form a plurality of demodulated input signals; discriminating frequency ranges of the plurality of demodulated input signals according to the first clock; determining whether a first predetermined number of consecutive demodulated input signals among the plurality of demodulated input signals fall into a first predetermined frequency range; triggering a crystal oscillator to provide a second clock to calibrate the first clock if the first predetermined number of consecutive input signals fall into the first predetermined frequency range.

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