FR3114434A1 - Method and device for processing the speech of a user for sending a message from a vehicle - Google Patents

Abstract

The invention relates to a method for processing the speech of a user for sending a message from a vehicle, said method comprising:- an acquisition step (201), via a microphone of the vehicle, of the speech of the user the application (202) of a voice recognition function on a first speech received, - the addition (203) in said message of a first text corresponding to the first speech recognized,- the reception (205) of a command asking to complete said message- a second acquisition step (206) of a second word from the user,- a second application step (207) of a voice recognition function on the second word received, - the addition (208) in the message of a second text corresponding to the second recognized word. Figure for abstract: Figure 2

Description

Method and device for processing the speech of a user for sending a message from a vehicle

The invention relates to vehicle voice recognition systems and, more particularly, those allowing the sending of a text message.

Technology background

Speech recognition systems according to the prior art generally include a microphone to record the speech of a user. The speech is digitized and then analyzed so as to identify a succession of words. Despite the progress made in recent years, these systems sometimes make recognition errors, by rendering words different from those spoken by the user or by stopping the acquisition of the user's speech too early. This is particularly true in a noisy environment such as a vehicle interior or when the user pauses too long between two sentences. A correction step is then necessary.

For example, patent application US2010023320 discloses a method for managing poor voice recognition. During a voice recognition problem, the user is expected to check the recognition result and repeat his sentence if necessary.

Such a system has the disadvantage of forcing the user to completely repeat his message with the risk of being interrupted again by the surrounding noise or of pausing too long.

The aim of the invention is therefore to propose a method and a device for voice recognition making it possible to easily dictate a message, including in the event of interruption of the voice dictation, in particular due to surrounding noise or too long a pause time.

More specifically, for this purpose, it proposes a method for processing the speech of a user for sending a message from a vehicle, said method comprising:
- an acquisition step (201), via a microphone (11) of the vehicle, of the speech of the user
the application (202) of a voice recognition function on a first speech received,
- the addition (203) in said message of a first text corresponding to the first recognized speech,
- the reception (205) of a command asking to complete said message
- a second acquisition step (206) of a second word from the user,
- a second step of applying (207) a voice recognition function to the second word received,
- the addition (208) in the message of a second text corresponding to the second recognized speech.

With the invention, it is possible to complete a message dictated following an interruption. The invention makes it possible to avoid repeating the same message several times. By activating a specific command, the user can complete a message whose dictation has been interrupted.

Advantageously, the method of processing the speech of a user for sending a message, according to the invention further comprises a step of displaying a page comprising an invitation, intended for the user, to send the message, the page displayed also includes an invitation to continue the message.

Advantageously, the vehicle includes a touch screen, the invitation to continue the message being displayed on said screen, the command asking to complete the message being carried out by the user by touching said displayed invitation.

The invention also relates to a device for processing the speech of a user comprising a microphone, arranged in a vehicle, for recording the speech of a user, a processing unit capable of controlling a voice recognition function on the speech recorded , characterized in that the processing unit is adapted to implement the method according to the invention.

The invention also relates to a vehicle comprising a speech processing device according to the invention.

Brief description of figures

Other characteristics and advantages of the invention will emerge from the description of the non-limiting embodiments of the invention below, with reference to the appended figures, in which:

illustrates a diagram showing a schematic view of a device according to the invention;

illustrates a diagram presenting the method according to the invention.

schematically illustrates a device configured to process the speech of a user for sending a message to a vehicle.

With reference to the , the device 10 for processing a user's speech comprises: a microphone 11, a processing unit 12 and an alternative mode to the microphone 11, for example a display means 13 and a selection means 14.

The microphone 11 makes it possible to record the speech of a user located in the passenger compartment of the vehicle.

The processing unit 12 is a computer, comprising a memory and a processor, capable of executing or controlling the execution of a voice recognition function. The processing unit 12 is connected to the microphone 11 and to the selection means 14 and is capable of controlling the display means 13.

The voice recognition function is a function known from the state of the art which makes it possible to recognize words from a speech uttered by a user and digitized beforehand.

The display means 13, for example an LCD screen, makes it possible in particular to display words recognized by the voice recognition function.

The selection means 14 allows a user to select graphic objects displayed on the screen. The selection is transmitted in the form of a signal to the processing unit 12.

Advantageously, the display means 13 and the selection means 14 are ensured by a touch screen, but any other means of identifying a zone of the screen can be used, in particular, a designator or a touch pad (or touch pad).

The invention also relates to a method for processing the speech of a user. With reference to the , the method comprises the following steps.

The method according to the invention is activated in response to a command from a user. It can be a voice command, the user pronouncing for example the instruction “send SMS”. It can also be a tactile command, the user clicking on a button located for example on the steering wheel of the vehicle.

The method includes, first of all, a step 201 of receiving, via the microphone 11, the speech of the user. This reception step is automatically interrupted, for example at the end of a predefined time beyond which no speech is detected.

The method also includes the application 202 of a voice recognition function on the speech received. The processing unit executes or controls the execution of the voice recognition function on the speech of the user recorded, by the microphone 11, and digitized. Voice recognition can be performed on a computer in the vehicle or remotely on a dismounted computer, the digitized speech and the result of the recognition being, in this second case, exchanged by means of a wireless communication.

The method also includes the addition 203 in said message of a first text corresponding to the first word recognized.

Advantageously, the method then includes the display 204, on the display means 13, of a page an invitation, intended for the user, to send the message, for example by displaying the word "Send" and possibly to cancel the creation of the message, for example by displaying the mention “Cancel”.

According to one characteristic of the invention, the page displayed also includes an invitation to continue the message, for example by displaying the words "Continue creating SMS" or the words "Continue creating SMS".

The method then includes the reception 205 of a command asking to complete said message. This command is for example carried out by clicking on the wording displayed on the touch screen.

The method then includes a second step 206 for acquiring a second word from the user, then a second step 207 for applying a voice recognition function to the second word received.

The method also includes the addition 208 in the message of a second text corresponding to the second recognized speech.

In this way, the message to be sent comprises two parts pronounced separately. Of course, the process described above can be repeated so that the user can complete his message as many times as necessary.

There schematically illustrates a device 2 configured for processing the speech of a user for sending a message to a vehicle, according to a particular and non-limiting embodiment of the present invention. The device 2 corresponds for example to a device on board the vehicle 10.

The device 2 is for example configured for the implementation of the steps of the method described with regard to the . Examples of such a device 2 include, but are not limited to, on-board electronic equipment such as a vehicle on-board computer, an electronic computer such as an ECU, a telematics control unit TCU (of the English “Telematic Control Unit”). The elements of device 2, individually or in combination, can be integrated in a single integrated circuit, in several integrated circuits, and/or in discrete components. The device 2 can be made in the form of electronic circuits or software (or computer) modules or else a combination of electronic circuits and software modules. According to various particular embodiments, the device 2 is coupled in communication with other similar devices or systems, for example via a communication bus or via dedicated input/output ports.

The device 2 comprises one (or more) processor(s) 20 configured to execute instructions for carrying out the steps of the method and/or for executing the instructions of the software or software embedded in the device 2. The processor 20 can include integrated memory, an input/output interface, and various circuits known to those skilled in the art. The device 2 further comprises at least one memory 21 corresponding for example to a volatile and/or non-volatile memory and/or comprises a memory storage device which can comprise volatile and/or non-volatile memory, such as EEPROM, ROM, PROM, RAM, DRAM, SRAM, flash, magnetic or optical disk.

The computer code of the on-board software or software comprising the instructions to be loaded and executed by the processor is for example stored on the first memory 21.

According to a particular and non-limiting embodiment, the device 2 comprises a block 22 of interface elements for communicating with external devices, for example a remote server or the "cloud", other devices similar to the device 2 and embedded in vehicles other than the one on board the device 2. The interface elements of block 22 comprise one or more of the following interfaces:

- RF radio frequency interface, for example of the Bluetooth® or Wi-Fi® type, LTE (from English "Long-Term Evolution" or in French "Evolution à long terme"), LTE-Advanced (or in French LTE-advanced );

- USB interface (from the English "Universal Serial Bus" or "Universal Serial Bus" in French);

- HDMI interface (from the English “High Definition Multimedia Interface”, or “Interface Multimedia Haute Definition” in French);

- LIN interface (from English “Local Interconnect Network”, or in French “Réseau interconnecté local”).

Data are for example loaded to the device 2 via the interface of block 22 using a Wi-Fi® network such as according to IEEE 802.11, an ITS G5 network based on IEEE 802.11p or a mobile network such as a 4G network (or LTE Advanced according to 3GPP release 10 – version 10) or 5G, in particular an LTE-V2X network.

According to another particular embodiment, the device 2 comprises a communication interface 23 which makes it possible to establish communication with other devices, such as for example the GPS-type location system, the mobile communication system (GSM, GPRS, Wi-Fi®, Bluetooth, LTE, LTE-V, ITS G5)) or the radars of the radar system via a communication channel 230. The communication interface 23 corresponds for example to a transmitter configured to transmit and receive information and/or data via the communication channel 230. The communication interface 23 corresponds for example to a wired network of the CAN type (from the English “Controller Area Network” or in French “Réseau de Contrôleurs”) or CAN FD (from the English “Controller Area Network Flexible Data-Rate” or in French “Réseau de Contrôleurs à Flow de Data Flexible”).

According to an additional particular embodiment, the device 2 can supply output signals to one or more external devices, such as a display screen, one or more loudspeakers and/or other peripherals respectively via interfaces output not shown.

Claims (5)

Method of processing the speech of a user for sending a message from a vehicle, said method comprising:
- an acquisition step (201), via a microphone (11) of the vehicle, of the speech of the user
the application (202) of a voice recognition function on a first speech received,
- the addition (203) in said message of a first text corresponding to the first recognized speech,
- the reception (205) of a command asking to complete said message
- a second acquisition step (206) of a second word from the user,
- a second step of applying (207) a voice recognition function to the second word received,
- the addition (208) in the message of a second text corresponding to the second recognized speech. Method for processing the speech of a user for sending a message, according to the preceding claim, characterized in that it further comprises a step of displaying (204) a page comprising an invitation, intended to the user, to send the message, the displayed page also includes an invitation to continue the message. Method for processing the speech of a user for sending a message, according to the preceding claim, characterized in that the vehicle comprises a touch screen, the invitation to continue the message being displayed on the said screen, the command requesting to complete the message being made by the user by touching said displayed invitation. Speech processing device (10) of a user comprising a microphone (11), placed in a vehicle, to record the speech of a user, a processing unit (12) capable of controlling a voice recognition function on recorded speech, characterized in that the processing unit (12) is adapted to implement the method according to one of the preceding claims. Vehicle comprising a speech processing device (10) according to the preceding claim.