US 2022/0191680 A1 · ELECTRONIC DEVICE

Abstract

An electronic device includes a modulator-demodulator circuit, a first integrated circuit for implementing a first subscriber module; and a second integrated circuit for implementing a second subscriber identification module. A data transmit-receive terminal of the first integrated circuit and a data transmit-receive terminal of the second integrated circuit are connected to a data transmit-receive terminal of the modulator-demodulator circuit. Reset terminals of the modulator-demodulator circuit and the first integrated circuit are connected so that the modulator-demodulator circuit can control deactivation of the first integrated circuit. A reset terminal of the second integrated circuit and an input/output terminal of the first integrated circuit are connected so that the first integrated circuit can control deactivation of the second integrated circuit. Select terminals of the modulator-demodulator circuit and the first integrated circuit are connected so that the modulator-demodulator circuit can control selection functions for controlling selection of the second integrated circuit.

Claims34

Dependent claims

An electronic device, comprising:

a modulator-demodulator circuit including a data transmit-receive terminal, a select terminal and a reset terminal;
a first integrated circuit configured to implement a first subscriber identification module and including a data transmit-receive terminal, a select terminal and a reset terminal which are directly connected to the data transmit-receive terminal, select terminal and reset terminal, respectively, of the modulator-demodulator circuit and further including an input/output terminal;
and
at least one second integrated circuit configured to implement a second subscriber identification module and including a data transmit-receive terminal and a reset terminal, wherein the data transmit-receive terminal is directly connected to the data transmit-receive terminals of the modulator-demodulator circuit and the first integrated circuit, and wherein the reset terminal is directly connected to the input/output terminal of the first integrated circuit;
wherein the first integrated circuit is configured to apply, through the input/output terminal to the reset terminal of the at least one second integrated circuit, a signal for controlling deactivation of the second integrated circuit.

2 more elements

Dependencies are inferred from the claim text.

Electronic device

Life of this patent

Electronic device

Life of this patent

Abstract

Claims34