US 11,057,226 B1 · Electronic device detecting change of power mode based on external signal

Abstract

Disclosed is electronic device configured to switch a power mode from a first mode to a second mode as a first time interval and a second time interval sequentially pass. The electronic device includes a first mode receiver, a second mode detector, and a second mode verifier. The first mode receiver outputs a first detection signal, based on three or more receive signals, when the first time interval begins. The second mode detector outputs a second detection signal, based on the first detection signal and a change in voltage levels of the three or more receive signals, when the second time interval begins. When the second detection signal is received, the second mode verifier detects an option pattern generated by the three or more receive signals and verifies that the second time interval begins.

Claims20

Dependent claims

An electronic device configured to switch a power mode from a first mode to a second mode as a first time interval and a second time interval sequentially pass, the electronic device comprising:

a first mode receiver configured to output a first detection signal, based on at least three receive signals, when the first time interval begins;
a second mode detector configured to output a second detection signal, based on the first detection signal and a change in voltage levels of the at least three receive signals, when the second time interval begins;
and
a second mode verifier configured to detect an option pattern generated by the at least three receive signals and verify that the second time interval has begun when the second detection signal is received.

1 more element

An electronic device configured to switch a power mode from a first mode to a second mode as a first time interval and a second time interval sequentially pass, the electronic device comprising:

a first mode receiver configured to output a first detection signal, based on a first signal, a second signal, and a third signal, when the first time interval begins;
and
a second mode receiver configured to output the first detection signal and a second detection signal of a first logical value, the second detection signal based on a first signal pair including the first signal and the second signal, a second signal pair including the second signal and the third signal, and a third signal pair including the first signal and the third signal, and the first detection signal, when the second time interval begins, the second mode receiver includes
a first comparator configured to output a first comparison signal, based on first currents flowing by the first signal pair,
a second comparator configured to output a second comparison signal, based on second currents flowing by the second signal pair, and
a third comparator configured to output a third comparison signal, based on third currents flowing by the third signal pair, and
wherein the first logical value of the second detection signal is based on the first comparison signal, the second comparison signal, and the third comparison signal.

4 more elements

An electronic device configured to switch a power mode from a first mode to a second mode as a first time interval and a second time interval sequentially pass, the electronic device comprising:

a first mode receiver configured to, when the first time interval begins, output a first detection signal, based on a first signal, a second signal, and a third signal;
and
a second mode receiver configured to detect an option pattern generated by a first difference signal being a difference between the first signal and the second signal, a second difference signal being a difference between the second signal and the third signal, and a third difference signal being a difference between the third signal and the first signal, and to verify that the second time interval begins, when the first detection signal is received, and the second mode receiver is configured to detect the option pattern, when a voltage level of the second difference signal transitions, based on a voltage level of the first difference signal.

Dependencies are inferred from the claim text.

Electronic device detecting change of power mode based on external signal

Life of this patent

Electronic device detecting change of power mode based on external signal

Life of this patent

Abstract

Claims20