# US 12,225,624 B2 · Electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,225,624 B2 - Document ID: US12225624B2 - Status: Granted - Kind: B2 - Application number: 17/548,171 - Filed: 2021-12-10 - Published: 2022-06-16 - Granted: 2025-02-11 - Earliest claimed: 2020-12-14 - Assignees: STMicroelectronics (Rousset) SAS - Applicants: STMicroelectronics (Rousset) SAS - Inventors: Yannick Degot - Web page: https://patentgrep.com/patent/US12225624B2 ## CPC - G06K 19/072: {the record carrier comprising a plurality of integrated circuit chips} - H04W 8/183: {Processing at user equipment or user record carrier} - G06K 19/0723: {the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs} - H03K 19/0016: {by using a control or a clock signal, e.g. in order to apply power supply} - H04W 8/205: {Transfer to or from user equipment or user record carrier} - H04W 8/22: Processing or transfer of terminal data, e.g. status or physical capabilities - H04W 12/35: {Protecting application or service provisioning, e.g. securing SIM application provisioning} - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H03K: PULSE TECHNIQUE (measuring pulse characteristics G01R; modulating sinusoidal oscillations with pulses H03C; transmission of digital information H04L; discriminator circuits detecting phase difference between two signals by counting or integrating cycles of oscillation H03D3/04; automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses where the type of generator is irrelevant or unspecified H03L; coding, decoding or code conversion, in general H03M) ## 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. ## Claims ### Claim 1 A wireless electronic device, comprising: a modulator-demodulator circuit including a data transmit-receive terminal, a select terminal and a reset terminal; wherein the modulator-demodulator circuit is configured to generate a select signal at the select terminal and a reset signal at the reset terminal, said reset signal for controlling reset of a first integrated circuit and activation/deactivation of at least one second integrated circuit; wherein the first integrated circuit is configured to implement a first subscriber identity module (SIM) 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; wherein the first integrated circuit is activated for communication with the modulator-demodulator in response to a first logic state of the select signal and deactivated for communication with the modulator-demodulator in response to a second logic state of the select signal; and wherein the at least one second integrated circuit is configured to implement a second subscriber identity module (SIM) 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 further configured, when deactivated for communication with the modulator-demodulator, to copy the reset signal received from the modulator-demodulator for output at the input/output terminal; and wherein the second integrated circuit is activated for communication with the modulator-demodulator in response to a first logic state of the reset signal and deactivated for communication with the modulator-demodulator in response to a second logic state of the reset signal. ### Claim 2 (depends on 1) The device according to claim 1, wherein each of the modulator-demodulator circuit, the first integrated circuit and the at least one second integrated circuit includes a clock terminal, and wherein the modulator-demodulator circuit is configured to apply, through its clock terminal to the clock terminals of the first integrated circuit and the at least one second integrated circuit, a clock signal. ### Claim 3 (depends on 1) The device according to claim 1, wherein each of the modulator-demodulator circuit, the first integrated circuit and the at least one second integrated circuit includes a power supply terminal, and wherein a power supply voltage is applied to the power supply terminals of the modulator-demodulator circuit, the first integrated circuit and the at least one second integrated circuit. ### Claim 4 (depends on 1) The device according to claim 1, wherein the first integrated circuit is one of: an embedded universal integrated circuit card (eUICC) and an integrated universal integrated circuit card (iUICC). ### Claim 5 (depends on 4) The device according to claim 4, wherein the at least one second integrated circuit is an integrated circuit selected from the group consisting of: a location configured to receive a universal integrated circuit card; an embedded universal integrated circuit card (eUICC); and an integrated universal integrated circuit card (iUICC). ### Claim 6 (depends on 1) The device according to claim 1, wherein the first integrated circuit is deactivated when the at least one second integrated circuit is activated, and vice versa. ### Claim 7 (depends on 1) A motor vehicle, comprising a device according to claim 1. ### Claim 8 A wireless electronic device, comprising: a modulator-demodulator circuit having a first control terminal and a first reset terminal; a first integrated circuit having a second control terminal directly connected to the first control terminal and having a second reset terminal directly connected to the first reset terminal, the first integrated circuit configured to implement a first subscriber identity module (SIM); and at least one second integrated circuit configured to implement a second subscriber identity module (SIM); wherein a data transmit-receive terminal of the first integrated circuit and a data transmit-receive terminal of the at least one second integrated circuit are both directly connected to a data transmit-receive terminal of the modulator-demodulator circuit; wherein the modulator-demodulator controls activation/deactivation of the first integrated circuit through a first control signal output from the first control terminal and controls activation/deactivation of the at least one second integrated circuit through a second control signal output from the first reset terminal; and wherein a reset terminal of the at least one second integrated circuit is directly connected to an input/output terminal of the first integrated circuit, and wherein said first integrated circuit is configured, when the first control signal deactivates the first integrated circuit, to receive and copy the second control signal for output at said input/output terminal for controlling activation/deactivation of the at least one second integrated circuit. ### Claim 9 (depends on 8) The device according to claim 8, wherein the second control signal output by the modulator-demodulator circuit is a reset signal. ### Claim 10 (depends on 8) The device according to claim 8, wherein a sequencing terminal of the first integrated circuit and a sequencing terminal of the at least one second integrated circuit are connected to a sequencing terminal of the modulator-demodulator circuit. ### Claim 11 (depends on 8) The device according to claim 8, wherein a power supply terminal of the first integrated circuit and a power supply terminal of the at least one second integrated circuit are connected to a power supply terminal of the modulator-demodulator circuit. ### Claim 12 (depends on 8) The device according to claim 8, wherein the second control terminal is a select terminal of the first integrated circuit and the first control terminal is a select terminal of the modulator-demodulator circuit. ### Claim 13 (depends on 8) The device according to claim 8, wherein the data transmit-receive terminals of the modulator-demodulator circuit, the first integrated circuit and the at least one second integrated circuit are part of a standardized ISO 7816 communication interface. ### Claim 14 (depends on 8) The device according to claim 8, wherein the first integrated circuit is one of: an embedded universal integrated circuit card (eUICC) and an integrated universal integrated circuit card (iUICC). ### Claim 15 (depends on 8) The device according to claim 8, wherein the at least one second integrated circuit is a circuit selected from the group consisting of: a location intended to receive a universal integrated circuit card; an embedded universal integrated circuit card (eUICC); and an integrated universal integrated circuit card (iUICC). ### Claim 16 (depends on 8) The device according to claim 8, wherein the first integrated circuit is deactivated when the at least one second integrated circuit is activated, and vice versa. ### Claim 17 (depends on 8) A motor vehicle, comprising a device according to claim 8. ### Claim 18 A wireless electronic device, comprising: a modulator-demodulator circuit; a first integrated circuit configured to support implementation of a first subscriber identity module (SIM); and at least one second integrated circuit configured to support implementation of a second subscriber identity module (SIM); wherein a data transmit-receive terminal of the first integrated circuit and a data transmit-receive terminal of the at least one second integrated circuit are both connected to a data transmit-receive terminal of the modulator-demodulator circuit; and wherein a reset terminal of the modulator-demodulator circuit is directly connected to a reset terminal of the first integrated circuit and a select terminal of the modulator-demodulator circuit is directly connected to a select terminal of the first integrated circuit; wherein said modulator-demodulator circuit is configured to generate a reset signal at its reset terminal for controlling reset of the first integrated circuit and activation/deactivation of the at least one second integrated circuit; wherein said modulator-demodulator is configured to generate a select signal at its select terminal for controlling activation/deactivation of the first integrated circuit; and wherein a reset terminal of the at least one second integrated circuit is directly connected to an input/output terminal of the first integrated circuit, and wherein said first integrated circuit is configured, when the select signal deactivates the first integrated circuit, to receive and copy the reset signal for output at said first terminal for controlling activation/deactivation of the at least one second integrated circuit. ### Claim 19 (depends on 18) The device according to claim 18, wherein a sequencing terminal of the first integrated circuit and a sequencing terminal of the at least one second integrated circuit are connected to a sequencing terminal of the modulator-demodulator circuit. ### Claim 20 (depends on 18) The device according to claim 18, wherein a power supply terminal of the first integrated circuit and a power supply terminal of the at least one second integrated circuit are connected to a power supply terminal of the modulator-demodulator circuit. ### Claim 21 (depends on 18) The device according to claim 18, wherein the data transmit-receive terminals of the modulator-demodulator circuit, the first integrated circuit and the at least one second integrated circuit are part of a standardized ISO 7816 communication interface. ### Claim 22 (depends on 18) The device according to claim 18, wherein the first integrated circuit is one of: an embedded universal integrated circuit card (eUICC) and an integrated universal integrated circuit card (iUICC). ### Claim 23 (depends on 18) The device according to claim 18, wherein the at least one second integrated circuit is a circuit selected from the group consisting of: a location intended to receive a universal integrated circuit card; an embedded universal integrated circuit card (eUICC); and an integrated universal integrated circuit card (iUICC). ### Claim 24 (depends on 18) The device according to claim 18, wherein the first integrated circuit is deactivated when the at least one second integrated circuit is activated, and vice versa. ### Claim 25 (depends on 18) A motor vehicle, comprising a device according to claim 18.