# US 11,909,454 B2 · Method for validating a transaction during a radio communication

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- Number: US 11,909,454 B2
- Document ID: US11909454B2
- Status: Granted
- Kind: B2
- Application number: 17/770,852
- Filed: 2020-10-06
- Published: 2022-11-24
- Granted: 2024-02-20
- Earliest claimed: 2019-10-24
- Assignees: Orange
- Applicants: Orange
- Inventors: Philippe Dussaume; Jean-Philippe Javaudin
- Web page: https://patentgrep.com/patent/US11909454B2

## CPC

- H04B 13/005: {Transmission systems in which the medium consists of the human body}
- H04B: TRANSMISSION

## Abstract

A method for receiving a signal during an intrabody communication via a user carrying a terminal. The method is performed by the terminal and includes: receiving a signal from a communication device, indicating that the user moved closer to the device between two instants; detecting, in the signal received, a first radio frame generated between the two instants, the first frame being at the same frequency as that of the signal received; detecting, in the signal received, a second radio frame generated between the two instants, the second frame being at a different frequency to that of the signal received; comparing the first frame to the second frame; and validating a transaction based on the presence or absence of information common to the first and second compared frames.

## Claims

### Claim 1

A reception method for receiving a signal during an intra-body communication via a user carrying a terminal, comprising the following, performed by the terminal:
receiving the signal from a communication device, the signal characterizing that the user has performed an approach gesture toward the device between first and second time instants;
detecting, in the signal, a first radio data frame generated between the first and second time instants, the first radio data frame being at a same frequency as that of the signal;
detecting, in the signal, a second radio data frame generated between the first and second time instants, the second radio data frame being at a frequency different from that of the signal;
comparing the first radio data frame with the second radio data frame; and
validating a transaction depending on presence or absence of information common to the compared first and second radio data frames.

### Claim 2 (depends on 1)

The reception method as claimed in claim 1, wherein the at least one item of information common to the first and second radio data frames is an identifier or location information for locating the communication device.

### Claim 3 (depends on 1)

The reception method as claimed in claim 1, wherein the common information is represented in binary form.

### Claim 4 (depends on 1)

The reception method as claimed in claim 1, wherein the second radio data frame is detected multiple times between the first and second time instants.

### Claim 5 (depends on 1)

The reception method as claimed in claim 1, wherein the second radio data frame is detected once between the first and second time instants and represents that the user has touched the communication device between the first and second time instants.

### Claim 6

A terminal having capabilities for intra-body communication via a user carrying the terminal, the terminal comprising:
a processor that is configured so as to:
receive, from a communication device, a signal characterizing that the user has performed an approach gesture toward the device, between first and second time instants;
detect, in the signal, a first radio data frame generated between the first and second time instants, the first radio data frame being at a same frequency as that of the signal;
detect, in the signal, a second radio data frame generated between the first and second time instants, the second radio data frame being at a frequency different from that of the signal;
compare the first radio data frame with the second radio data frame; and
validate a transaction depending on presence or absence of information common to the compared first and second radio data frames.

### Claim 7

A non-transitory computer-readable information medium comprising instructions of a computer program stored thereon, which when executed by a processor of a terminal, configure the terminal to perform a method for receiving a signal during an intra-body communication via a user carrying the terminal, wherein the method comprises:
receiving the signal from a communication device, the signal characterizing that the user has performed an approach gesture toward the device between first and second time instants;
detecting, in the signal, a first radio data frame generated between the first and second time instants, the first radio data frame being at a same frequency as that of the signal;
detecting, in the signal, a second radio data frame generated between the first and second time instants, the second radio data frame being at a frequency different from that of the signal;
comparing the first radio data frame with the second radio data frame; and
validating a transaction depending on presence or absence of information common to the compared first and second radio data frames.