# US 2019/0245584 A1 · Memory architecture of a near-field communication device

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- Number: US 2019/0245584 A1
- Document ID: US20190245584A1
- Status: Published application
- Kind: A1
- Application number: 16/260,945
- Filed: 2019-01-29
- Published: 2019-08-08
- Earliest claimed: 2018-02-02
- Assignees: STMicroelectronics (Rousset) SAS; STMicroelectronics (Grenoble 2) SAS
- Applicants: STMicroelectronics (Rousset) SAS; STMicroelectronics (Grenoble 2) SAS
- Inventors: Sylvie WUIDART; Sophie MAURICE
- Web page: https://patentgrep.com/patent/US20190245584A1

## CPC

- H04W 88/184: {Messaging devices, e.g. message centre}
- G06F 21/606: {by securing the transmission between two devices or processes}
- G06K 7/10297: {arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092 (cryptographic protocols H04L9/00; network security protocols H04L63/00; real-time communication protocols in data switching networks H04L65/00; network protocols for data switching network services H04L67/00)}
- 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}
- H04B 5/24: Inductive coupling
- H04B 5/45: Transponders
- H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
- H04W 88/02: Terminal devices
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- H04B: TRANSMISSION

## Abstract

A near-field communication device operates to transmit data by near-field communications techniques to another device. The near-field communication device includes a memory that stores a message to be transmitted in an ASCII format. The message is retrieved from the memory and transmitted using the near-field communications techniques in an ASCII format.

## Claims

### Claim 1

A near-field communication device, comprising:
a memory storing a message to be transmitted in an ASCII format; and
a transceiver configured to radio frequency transmit the message by near-field communications techniques in the ASCII format.

### Claim 2 (depends on 1)

The device of claim 1, wherein the message comprises a static portion and a dynamic portion.

### Claim 3 (depends on 2)

The device of claim 2, wherein the memory stores the dynamic portion in a restricted access area of the memory.

### Claim 4 (depends on 2)

The device of claim 2, wherein the memory stores the static portion in a free access area of the memory.

### Claim 5 (depends on 2)

The device of claim 2, wherein the static portion comprises an address of a web site.

### Claim 6 (depends on 2)

The device of claim 2, further comprising a counter circuit configured to supply data forming the dynamic portion.

### Claim 7 (depends on 2)

The device of claim 2, further comprising a logic circuit configured to supply data forming the dynamic portion.

### Claim 8 (depends on 1)

The device of claim 1, wherein the memory comprises a first portion storing the variable portion of said message to be transmitted in ASCII format, the first portion representing less than 10% of the memory size.

### Claim 9 (depends on 8)

The device of claim 8, wherein the memory comprises a second portion storing data coded in hexadecimal language.

### Claim 10

A method for near-field communication, comprising:
storing a message to be transmitted in an ASCII format; and
radio frequency transmitting of the message by near-field communication techniques in the ASCII format.

### Claim 11 (depends on 10)

The method of claim 10, wherein the message comprises a static portion and a dynamic portion.

### Claim 12 (depends on 11)

The method of claim 11, further comprising storing the dynamic portion in a restricted access area of a memory.

### Claim 13 (depends on 11)

The method of claim 11, further comprising storing the static portion in a free access area of a memory.

### Claim 14 (depends on 11)

The method of claim 11, wherein the static portion comprises an address of a website.