# US 10,872,663 B2 · Data storage management in a device including removable and embedded storage areas

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- Number: US 10,872,663 B2
- Document ID: US10872663B2
- Status: Granted
- Kind: B2
- Application number: 16/516,900
- Filed: 2019-07-19
- Published: 2020-11-12
- Granted: 2020-12-22
- Earliest claimed: 2019-05-10
- Assignees: NXP B.V.
- Applicants: NXP B.V.
- Inventors: Fabien Boitard; Ludovic Oddoart
- Web page: https://patentgrep.com/patent/US10872663B2

## CPC

- G11C 13/0069: {Writing or programming circuits or methods}
- H04W 8/183: {Processing at user equipment or user record carrier}
- G06K 7/10237: {the reader and the record carrier being capable of selectively switching between reader and record carrier appearance, e.g. in near field communication [NFC] devices where the NFC device may function as an RFID reader or as an RFID tag}
- G06K 19/072: {the record carrier comprising a plurality of integrated circuit chips}
- G11C 13/0097: {Erasing, e.g. resetting, circuits or methods}
- H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals
- G11C: STATIC STORES (semiconductor memory devices H10B)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS

## Abstract

A device includes a first signal line, a second signal line, and a controller. The first signal line is coupled to a first storage area. The second signal line is coupled to a second storage area. The controller outputs a signal to the first signal line or the second signal line to select the first storage area or the second storage area. The first storage area may be a removable data storage card, and the second storage area may be an embedded storage area in the device. The signal is a reset signal for the selected one of the first storage area and the second storage area.

## Claims

### Claim 1

A device, comprising:
a first signal line coupled to a first storage area;
a second signal line coupled to a second storage area;
a controller configured to output a signal to the first signal line or the second signal line to select the first storage area or the second storage area, wherein the first storage area is a removable data storage card and the second storage area is an embedded storage area in the device and wherein the signal is a reset signal for the selected one of the first storage area and the second storage area; and
a third signal line to carry a clock signal from the controller to the removable data storage card and to the embedded storage area.

### Claim 2 (depends on 1)

The device of claim 1, wherein:
the removable data storage card is a universal integrated circuit card (UICC), and
the embedded storage area is an embedded universal integrated circuit card (eUICC).

### Claim 3 (depends on 2)

The device of claim 2, further comprising:
a circuit on a chip,
wherein the eUICC is on the chip and the chip is coupled to the UICC.

### Claim 4 (depends on 3)

The device of claim 3, wherein the circuit is a near-field communications (NFC) circuit which reads data from or stores data to the selected one of the UICC and the eUICC.

### Claim 5 (depends on 4)

The device of claim 4, further comprising:
a single wire protocol (SWP) line coupled between the chip and the UICC,
wherein the NFC circuit communicates with the UICC through the SWP line when the UICC is selected.

### Claim 6 (depends on 1)

The device of claim 1, further comprising:
a third signal line coupled to the controller, the removable data storage card, and the embedded storage area, wherein the third signal line is a bidirectional input/output line to carry data.

### Claim 7 (depends on 1)

The device of claim 1, wherein the controller is configured to output signals to the first signal line and the second signal line independently from one another.

### Claim 8 (depends on 1)

The device of claim 1, wherein the controller is configured to automatically output the signal to the first signal line or the second signal line based on an instruction stored in a memory.

### Claim 9 (depends on 1)

The device of claim 1, wherein the controller is configured to output the signal to the first signal line or the second signal line based on a user input signal.

### Claim 10

A method for managing data storage, comprising:
receiving an instruction to select a first storage area or a second storage area;
generating a reset signal; and
transmitting the reset signal to a first signal line coupled to the first storage area or a second signal line coupled to the second storage area, wherein the first storage area is a removable data storage card and the second storage area is an embedded data storage area and wherein the removable data storage card and the embedded data storage are located in a same device; and
transmitting a clock signal along a third signal line commonly coupled to a controller, the removable data storage card, and the embedded storage area.

### Claim 11 (depends on 10)

The method of claim 10, wherein:
the removable data storage card is a universal integrated circuit card (UICC), and
the embedded storage area is an embedded universal integrated circuit card (eUICC).

### Claim 12 (depends on 11)

The method of claim 11, wherein the eUICC is on a same chip as a circuit.

### Claim 13 (depends on 12)

The method of claim 12, wherein the circuit is a near-field communications (NFC) circuit which reads data from or stores data to the selected one of the UICC and the eUICC.

### Claim 14 (depends on 10)

The method of claim 10, further comprising:
transmitting data along a third signal line commonly coupled to the controller, the removable data storage card, and the embedded storage area.

### Claim 15

A non-transitory machine-readable medium storing instructions to cause a processor to:
receive an instruction to select a first storage area or a second storage area;
generate a reset signal; and
transmit the reset signal to a first signal line coupled to the first storage area or a second signal line coupled to the second storage area, wherein the first storage area is a removable data storage card and the second storage area is an embedded data storage area and wherein the removable data storage card and the embedded data storage are located in a same device; and
transmit a clock signal along a third signal line commonly coupled to a controller, the removable data storage card, and the embedded storage area.

### Claim 16 (depends on 15)

The medium of claim 15, wherein:
the removable data storage card is a universal integrated circuit card (UICC), and
the embedded storage area is an embedded universal integrated circuit card (eUICC).

### Claim 17 (depends on 16)

The medium of claim 16, wherein the eUICC is on a same chip as a circuit.

### Claim 18 (depends on 17)

The medium of claim 17, wherein the circuit is a near-field communications (NFC) circuit which reads data from or stores data to the selected one of the UICC and the eUICC.