Method of conducting two-way communication between smartphone and hygiene apparatus

Patent metadata

Field	Value
Publication number	US-12225607-B2
Application number	US-202217716535-A
Country	US
Kind code	B2
Filing date	Apr 8, 2022
Priority date	Apr 9, 2021
Publication date	Feb 11, 2025
Grant date	Feb 11, 2025

Abstract

A method of conducting two-way communication between a first NFC enabled device and a second NFC enabled device. The method includes transmitting a write command from the first NFC enabled device to the second NFC enabled device. A silent mode of the second NFC enabled device, in which the presence of the second NFC enabled device is hidden from the first NFC enabled device, is then activated. While the silent mode is activated, the second NFC enabled device processes the write command and writes a response in a memory of the second NFC enabled device. The silent mode is then deactivated, which triggers the first NFC enabled device to read the response in the memory of the second NFC enabled device.

First claim

We claim:

1. A method of conducting two-way communication between a first NFC enabled device and a second NFC enabled device, the method comprising:
placing the first NFC enabled device and the second NFC enabled device in proximity;
transmitting a first message from the first NFC enabled device to the second NFC enabled device;
activating a silent mode of the second NFC enabled device after receipt of the first message;
using the second NFC enabled device to process the first message and write a second message in a memory of the second NFC enabled device;
deactivating the silent mode of the second NFC enabled device; and
using the first NFC enabled device to read the second message in the memory of the second NFC enabled device;
wherein the presence of the second NFC enabled device is hidden from the first NFC enabled device when the second NFC enabled device is in the silent mode.

2. The method according to claim 1 , wherein the second NFC enabled device processes the first message during a processing time; and
wherein the second NFC enabled device is in the silent mode during at least part of the processing time.

3. The method according to claim 2 , wherein the first NFC enabled device comprises a smartphone; and
wherein the second NFC enabled device comprises a hygiene apparatus.

4. The method according to claim 3 , wherein the first NFC enabled device operates in a reader/writer mode when communicating with the second NFC enabled device;
wherein the first NFC enabled device is configured to read the memory of the second NFC enabled device upon detecting the presence of the second NFC enabled device;
wherein activating the silent mode of the second NFC enabled device comprises deactivating a demodulator of the second NFC enabled device;
wherein deactivating the silent mode of the second NFC enabled device comprises activating the demodulator of the second NFC enabled device; and
wherein the second NFC enabled device is unable to communicate with the first NFC enabled device via NFC when the second NFC enabled device is in the silent mode.

5. The method according to claim 4 , wherein the second NFC enabled device is configured to activate the silent mode upon receipt of the first message from the first NFC enabled device;
wherein the second NFC enabled device is configured to deactivate the silent mode upon completion of the processing of the first message and the writing of the second message in the memory of the second NFC enabled device;
wherein the memory of the second NFC enabled device comprises a first part and a second part;
wherein the first part comprises a RAM type memory;
wherein the second part comprises an EPROM type memory;
wherein the size of the second message is selected based on a storage capacity of the RAM type memory;
wherein the second message is written in the RAM type memory; and
wherein the memory of the second NFC enabled device comprises a memory of an NFC chip of the second NFC enabled device.

6. The method according to claim 5 , wherein the first message comprises a write command and the second message comprises a response to the write command;
wherein the method has a first communication cycle that comprises:
the transmission of the write command from the first NFC enabled device to the second NFC enabled device;
the activation of the silent mode of the second NFC enabled device after the write command has been transmitted from the first NFC enabled device to the second NFC enabled device;
the use of the second NFC enabled device to process the write command and write the response in the memory of the second NFC enabled device;
the deactivation of the silent mode of the second NFC enabled device after completion of the processing of the write command and the writing of the response in the memory of the second NFC enabled device; and
the use of the first NFC enabled device to read the response in the memory of the second NFC enabled device;
wherein the write command is a first write command and the response is a first response;
the method further comprising a second communication cycle, the second communication cycle comprising:
after the first NFC enabled device reads the first response in the memory of the second NFC enabled device, transmitting a second write command from the first NFC enabled device to the second NFC enabled device;
activating the silent mode of the second NFC enabled device after the second write command has been transmitted from the first NFC enabled device to the second NFC enabled device;
using the second NFC enabled device to process the second write command and write a second response in the memory of the second NFC enabled device;
deactivating the silent mode of the second NFC enabled device after completion of the processing of the second write command and the writing of the second response in the memory of the second NFC enabled device; and
using the first NFC enabled device to read the second response in the memory of the second NFC enabled device.

7. The method according to claim 6 , wherein the first response comprises a first portion of a complete response to the first write command;
wherein the second response comprises a second portion of the complete response to the first write command;
wherein the second write command comprises an acknowledgement that the first response has been read by the first NFC enabled device; and
wherein processing the second write command comprises determining, from the second write command, whether the first response has been successfully read by the first NFC enabled device.

8. The method according to claim 7 , wherein the method comprises a plurality of communication cycles, the plurality of communication cycles including the first communication cycle and the second communication cycle;
wherein, in each of the plurality of communication cycles:
one of a plurality of write commands is transmitted from the first NFC enabled device to the second NFC enabled device;
the silent mode of the second NFC enabled device is activated after the one of the plurality of write commands is transmitted to the second NFC enabled device;
the second NFC enabled device processes the one of the plurality of write commands and writes one of a plurality of responses in the memory of the second NFC enabled device;
the silent mode of the second NFC enabled device is deactivated after completion of the processing of the one of the plurality of write commands and the writing of the one of the plurality of responses in the memory of the second NFC enabled device; and
the first NFC enabled device detects the presence of the second NFC enabled device after the silent mode of the second NFC enabled device has been deactivated, which triggers the first NFC enabled device to read the one of the plurality of responses in the memory of the second NFC enabled device;
wherein at least some of the plurality of responses are partial responses to one or more of the plurality of write commands;
wherein each one of the partial responses is written in the memory of the second NFC enabled device in a separate one of the plurality of communication cycles;
wherein, in each of the plurality of communication cycles, the first NFC enabled device is configured to determine, based on the one of the plurality of responses in the memory of the second NFC enabled device, whether the one of the plurality of responses is a said partial response; and
wherein the method is used for at least one of:
updating firmware of the second NFC enabled device;
configuring a setting of the second NFC enabled device;
configuring a Wi-Fi connection of the second NFC enabled device;
performing troubleshooting on the second NFC enabled device;
performing log st

Assignees

• Op Hygiene Ip Gmbh

Inventors

• Ophardt Heiner
• Bradley Robert

Classifications

• H04B5/20

  characterised by the transmission technique; characterised by the transmission medium · CPC title

• H04W76/14 Primary

  Direct-mode setup · CPC title

• G06K7/10297

  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) · CPC title

• G06K7/10237

  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 · CPC title

• H04B5/77 Primary

  for interrogation · CPC title