US 2015/0145561 A1 · MULTIPLEXED OSCILLATORS

Abstract

An integrated circuit device for use in an automobile. The integrated circuit device includes a first oscillator configured to generate a first clock signal, a second oscillator configured to generate a second clock signal, a comparator circuit configured to compare a frequency of the first clock signal with a frequency of the second clock signal, and configured to generate a selection signal for selecting either of the first clock signal or the second clock signal, and a selector configured to output an output clock signal that is selected from among a plurality of outputs including the first clock signal and the second clock signal in response to the select signal.

Claims14

Dependent claims

An integrated circuit device for use in an automobile, the integrated circuit device comprising:

a first oscillator configured to generate a first clock signal;
a second oscillator configured to generate a second clock signal;
a comparator circuit configured to compare a frequency of the first clock signal with a frequency of the second clock signal, and configured to generate a selection signal for selecting either the first clock signal or the second clock signal;
and
a selector configured to output an output clock signal that is selected from among a plurality of outputs including the first clock signal and the second clock signal in response to the selection signal.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/611,660Filed 2 Feb 2015

Priority

JP 2013-02937318 Feb 2013

Published

28 May 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

H03L 7/00
Automatic control of frequency or phase
G06F 1/06
Generating or distributing clock signals or signals derived directly therefrom: clock generators producing several clock signals
G06F 1/08
Generating or distributing clock signals or signals derived directly therefrom: clock generators with changeable or programmable clock frequency
G06F 1/28
Power supply means, e.g. regulation thereof: supervision thereof, e.g. detecting power-supply failure by out of limits supervision

Multiplexed oscillators

Life of this patent

Multiplexed oscillators

Life of this patent

Abstract

Claims14