Patent · US Active

Multi-mode crystal oscillators

US9628088B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Danielle Griffith · Richardson, US
Viral Parikh · Austin, US
Ryan Smith · Sachse, US
Per Torstein Roine · Oslo, NO

Key dates

Filing date	Aug 19, 2014
Grant date	Apr 18, 2017
Priority date	—
Expiry date	Jan 3, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04B1/40
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Digital control of a crystal oscillator is implemented in a manner that allows frequency accuracy to be traded off dynamically with power consumption. The oscillator transitions between a less accurate/lower power mode and a high accuracy/higher power mode smoothly without requiring any external clock source during the transition. Power consumption is optimized because the crystal oscillator provides the clock source during transitions between the power modes and no other clock source is needed for these transitions. The system can also optimize the startup time and steady state power consumption independently.

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