Detector and method for detecting neuronal signal frequency; Device and method for reproducing paginated content

Abstract

Detector and method for detecting neural signal frequency, Device and method for reproducing paginated content. The invention relates to a detector and method for detecting neural signal frequency, and a device and method for reproducing paginated content, particularly digital books. An object of the invention is also a device for reproducing paginated content comprising: - a visual neural stimulator at a given frequency, the given frequency being associated with a given command of the reproduction device, the visual neural stimulator being positioned on the reproduction device according to the associated given command. Thus, the user's interaction with the content pages is a hands-free solution that improves the user experience.Therefore, such a reproduction device, particularly an e-reader, takes advantage of advances in brain-computer interface (BCI) technologies by integrating them. See Figure 1 for the abbreviation.

Description

Title of the invention: Detector and method for detecting neuronal signal frequency, Device and method for reproducing paginated content technical field

[0001] The invention relates to a detector and a method for detecting neuronal signal frequency, and a device and a method for reproducing paginated content, in particular digital books. State of the art

[0002] Advantageously, electronic readers, also known as "e-readers," allow users to read digital books with optimal visual comfort. Indeed, they are equipped with an electronic ink screen that reduces eye strain for the user and offers an experience similar to that of reading paper books.

[0003] The main difference between reading on an e-reader and reading a printed book lies in turning pages. E-readers generally offer a page-turning system that requires manual interaction from the user with the device.

[0004] The most common approaches include the use of physical buttons implemented on the frame of the e-reader, in particular on an edge of the e-reader contiguous to the screen or a gesture on a touch screen of the e-reader.

[0005] Repeated use of physical buttons generally leads to mechanical wear and tear, and consequently, a reduction in the lifespan of the e-reader. One solution to avoid the reduction in the e-reader's lifespan due to wear of the physical buttons associated with page turning is, in particular, interaction with a touchscreen.

[0006] While touchscreens are less prone to wear and tear from repeated page turns, touch interactions are nevertheless sometimes subject to misinterpretation by the touchscreen, leading to errors in the e-reader's reproduction of the digital book, particularly the reproduction of the wrong page. This type of error can lead to user frustration, or even to abandoning the e-reader and returning to printed books.

[0007] Furthermore, in certain circumstances of using an e-reader to consult a paginated document, particularly a book, circumstances related, for example, to a disability or to everyday situations (lunch, manual labor, etc.), manually turning pages can be difficult or even impossible. Indeed, a user with physical limitations, for example, having joint problems: painful, deformed, or even stiff joints; suffering from Tremors or other fine motor impairments may make it difficult to press a button, especially a page-turn button on an e-reader, and / or to perform a precise gesture on a touchscreen, particularly a gesture that triggers a page turn. Furthermore, a user may have their hands occupied at certain times—meals, work, etc.—which will hinder the ability to manipulate the e-reader to turn pages.

[0008] Consequently, current methods of changing pages on electronic readers have limitations in terms of accessibility and, possibly, durability. Description of the invention

[0009] One of the aims of the present invention is to remedy some drawbacks of the prior art.

[0010] An object of the invention is a device for reproducing paginated content comprising: - a visual neural stimulator at a given frequency, the given frequency being associated with a given command of the reproduction device, the visual neural stimulator being positioned on the reproduction device according to the associated given command.

[0011] Thus, user interaction with content pages is a hands-free solution that improves the user experience. Therefore, such a reproduction device, in particular an e-reader, takes advantage of advances in brain-computer interface (BCI) technologies by integrating them.

[0012] Advantageously, the reproduction device comprises: - a controller for reproducing paginated content capable of applying to the reproduced paginated content a given command associated with a frequency of a received neural signal.

[0013] Thus, the command is implemented quickly because the controller is implemented in the reproduction device itself.

[0014] Advantageously, the reproduction device comprises: - a frequency detector in a neuronal signal, the frequency detector being capable of: + to identify a given frequency of a visual stimulus reproduced by a visual neural stimulator, and + to trigger a command associated with the detected frequency when the detected frequency corresponds to a given frequency.

[0015] Thus, the command is implemented quickly because the detector is implemented in the reproduction device itself.

[0016] Advantageously, the given frequency is a blinking frequency of a visual stimulus reproduced by the visual neural stimulator.

[0017] Thus, the detector is robust, limiting detection errors and therefore reducing associated command errors. The user's document reading will then be smoother and faster.

[0018] Advantageously, the given command is a command to change pages of the reproduced paginated content.

[0019] A page change command is understood to mean any command relating to a page of the reproduced content, including: - a command to change the page relative to the page being reproduced, such as a command to reproduce the next page or the previous page of the currently reproduced page, - a command to change chapters (command to reproduce the first page of the previous or next chapter), - an order to reproduce the summary page, - an order to reproduce a page indicated in the reproduced page (page indicated in the summary, in a footnote, in a reference, etc.), - etc.

[0020] Advantageously, the position of the visual neural stimulator is a function of the reading direction of a page of the reproduced paginated content.

[0021] Thus, the command to turn to the next or previous page is triggered by the simple movement of the reader's eyes while reading the paginated content when the stimulus enters the field of vision. This reduces eye strain for a user performing specific eye movements to trigger a so-called neural command, that is, a command triggered by a neural signal. Furthermore, this reduces the risk of errors in the user's interaction with the paginated content since it is a natural eye movement during reading that triggers the visualization of the neural stimulus, generating the neural signal that initiates the given command.

[0022] Advantageously, the visual neural stimulator is one of the following: - a physical device; - a light-emitting diode; - a part of a screen corresponding to a peripheral display area of ​​a screen reproducing the paginated content in a central display area.

[0023] An object of the invention is also a frequency detector for a neural signal comprising: - a neuronal signal analyzer capable of identifying a given frequency of a visual stimulus reproduced by a visual neuronal stimulator, the given frequency being associated with a given command of a paged content reproduction device, the visual neuronal stimulator being positioned on the reproduction device according to the associated given command.

[0024] Thus, the given command can be triggered hands-free including in noisy environments or when reproducing confidential documents.

[0025] Another object of the invention is a method for reproducing paginated content implemented by a paginated content reproduction device, the reproduction method comprising: - to reproduce a page of paginated content, and - trigger a reproduction of a visual neural stimulus at a given frequency, the given frequency being associated with a given command of the reproduction device, the reproduction of the visual neural stimulus being positioned on the reproduction device according to the associated given command.

[0026] Advantageously, the reproduction process comprises: - control the reproduction of the paginated content according to a given command associated with a frequency of a received neural signal.

[0027] Advantageously, the reproduction process comprises: - detect a frequency of a neuronal signal, frequency detection triggering control by a command associated with the detected frequency when the detected frequency corresponds to a given frequency.

[0028] Advantageously, frequency detection comprises: - analyze a neuronal signal, the analysis of the neuronal signal identifying a given frequency of a visual stimulus reproduced by a visual neuronal stimulator, the given frequency being associated with a given command of a device for reproducing paged content, the visual neuronal stimulator being positioned on the reproduction device according to the associated given command.

[0029] An object of the invention is also a method for detecting frequency in a neural signal comprising: - analyze a neuronal signal, the analysis of the neuronal signal identifying a given frequency of a visual stimulus reproduced by a visual neuronal stimulator, the given frequency being associated with a given command of a device for reproducing paged content, the visual neuronal stimulator being positioned on the reproduction device according to the associated given command.

[0030] Advantageously, the analysis identifies a given frequency in a neuronal signal when the amplitude of the neuronal signal is greater than a threshold amplitude.

[0031] Advantageously, according to one implementation of the invention, the various steps of the process according to the invention are implemented by a software or computer program, this software comprising software instructions intended to be executed by a data processor of a paged content reproduction device and / or a frequency detector and being designed to control the execution of the various steps of this process.

[0032] The invention therefore also relates to a program comprising program code instructions for the execution of the steps of the process of reproducing paginated content and / or of the frequency detection process according to the invention when said program is executed by a processor.

[0033] This program may use any programming language and be in the form of source code, object code or intermediate code between source code and object code such as in a partially compiled form or in any other desirable form. Brief description of the drawings

[0034] The features and advantages of the invention will become clearer upon reading the description, given by way of example, and the related figures which represent:

[0035] [Fig. 1], a simplified diagram of a device for reproducing paginated content according to the invention,

[0036] [Fig.2a], a simplified diagram of a frequency detector in a neuronal signal according to the invention,

[0037] [Fig.2b], a simplified diagram of a frequency detector in a neural signal implemented in a direct neural interface according to the invention,

[0038] [Fig.3], a diagram of the exchanges between the processes implemented by the invention, in particular the process for reproducing paginated content and the frequency detection process,

[0039] [Fig.4a], a first example of neural stimulators placed on the frame of a device for reproducing paginated content according to the invention,

[0040] [Fig.4b], a second example of neural stimulators placed on the frame of a device for reproducing paginated content according to the invention,

[0041] [Fig.5a], a first example of neural stimulators reproduced by the screen of a device for reproducing paginated content according to the invention,

[0042] [Fig.5b], a second example of neural stimulators reproduced by the screen of a device for reproducing paginated content according to the invention. Description of the implementation methods

[0043] Fig. 1 illustrates a simplified diagram of a device for reproducing paginated content according to the invention.

[0044] The device for reproducing paginated content c comprises: 1 - a visual neural stimulator 12, 12; at a given frequency f, the given frequency f being associated with a given command cmd of the reproduction device 1, the visual neural stimulator 12, 12; being positioned pos, pos; on the reproduction device 1 according to the associated given command cmd.

[0045] In particular, the reproduction device 1 comprises: - a controller 14 for reproducing paged content c capable of applying to the reproduced paged content a given command cmd associated with a frequency fn of a neural signal sn.

[0046] In particular, the reproduction device 1 comprises: - a frequency detector 13 in a neuronal signal sn, the frequency detector 13 being suitable: + to identify a given frequency f of a visual stimulus sv, sv(f) reproduced by a visual neural stimulator 12, 12;, and + to trigger a cmd command associated with the detected frequency fn when the detected frequency fn corresponds to a given frequency f: fn=f.

[0047] In particular, the given frequency f is a blinking frequency of a visual stimulus sv reproduced by the visual neuronal stimulator 12, 12;.

[0048] In particular, the given command cmd is a command to change pages of the reproduced paginated content.

[0049] A page change command is understood to mean any command relating to a page of the reproduced content, including: - a command to change the page relative to the page being reproduced, such as a command to reproduce the next page or the previous page of the currently reproduced page, - a command to change chapters (command to reproduce the first page of the previous or next chapter), - an order to reproduce the table of contents page, - an order to reproduce a page indicated in the reproduced page (page indicated in the summary, in a footnote, in a reference, etc.), - etc.

[0050] In particular, the position pos, pos; of the visual neural stimulator 12, 12; is a function of the reading direction rd of a page of the reproduced paginated content c(m). In the example of [Fig. 1], the position pos, pos; of the visual neural stimulator 12, 12; is indicated in Cartesian coordinates (abscissa x, x; and ordinate y, y;): pos(x,y), pos^x^yi). This is a non-limiting example; the position pos can also be expressed in polar coordinates, particularly in the case of holographic displays.

[0051] In particular, the visual neural stimulator 12, 12; is one of the following stimulators: - a physical device; - a light-emitting diode; - a part of a screen corresponding to a peripheral display area of ​​a screen reproducing the paginated content in a central display area.

[0052] In particular, the reproduction device 1 includes a page reproducor of the paginated content 15 capable of providing a display 17, in particular a screen, a holograph, etc., with a page of paginated content c(m) for the purpose of its reproduction by the display 17.

[0053] In particular, the reproducer 15 receives the content c from a storage device 16, 46. The storage device 16, 46 is in particular a content storage device, or even a paginated content storage device, such as a paginated content database.

[0054] In one embodiment, the reproduction device 1 includes a storage device 16.

[0055] In another alternative or complementary embodiment to the previous one, a content provider 4 includes a storage device 46. The reproduction device 1 is connected to the content provider 4 in particular via a remote or local communication network 5.

[0056] In particular, the storage device 16, 46 provides paginated content c to the reproducer 15 on request for content c_rq from the reproducer 15.

[0057] Generally, the reproducor 15 provides the display 17 with the pages of the content to be reproduced successively, in particular from the first to the last: c(l).... .c(m)... c(M), for a content c of M pages either automatically (for example, the reproducor provides the next page after the display time of a page has expired, which is a function of a reading speed and the number of words on the page), or on command from the user by means of a user interface.

[0058] In the reproduction device 1 described in [Fig.1], the user interface enabling page change is a direct neural interface 2 connected to the reproduction device 1.

[0059] In particular, the visual neural stimulator 12, 12i is placed on the frame 11 of the screen 17 of the reproduction device 1. In the case of the example in [Fig. 1], the reading direction rd of the reproduced page c(m) on the screen 17 of the reproduction device 1 is from left to right and from top to bottom. Therefore, the visual neural stimulator 12, 12i, whose visual stimulus frequency f sv(f) is associated with the The cmd command to reproduce the next page is positioned pos, pos; at the bottom right of frame 11.

[0060] Thus, reader U, reading page c(m) of content c on the screen 17 of the playback device 1, will naturally have their gaze directed towards the visual neural stimulator 12, 12i at the end of reading this page c(m). They will then receive the visual stimulus sv(f) whose frequency f is associated with the command to play back the next page cmd, cmd(m+l). The evoked potential of reader U's brain will then naturally take on the frequency f of the visual stimulus sv(f). And the direct neural interface will detect a neural signal sn whose frequency fn will be equal to the frequency f of the visual stimulus sv(f).

[0061] In particular, the reproduction device 1 will receive from the direct neural interface 2 a neuronal feedback rn comprising in particular either the neuronal signal sn detected by the direct neural interface 2: m=sn, or the neuronal frequency fn of the neuronal signal sn detected by the direct neural interface 2: m=fn.

[0062] The reproduction device 1 and the direct neural interface 2 are connected either by wire or via a local communication network (not shown). In particular, the reproduction device 1 includes a receiver 10 capable of receiving the neural feedback m transmitted by the neural interface 2, notably via the local communication network.

[0063] In a particular embodiment, when the reproduction device 1 receives the neuronal signal sn from the neuronal interface 2, in particular by means of the receiver 10, the frequency detector 13 is then able to detect in the neuronal signal sn the neuronal frequency fn and to provide the detected neuronal frequency fn to the controller 14.

[0064] In an alternative embodiment, when the reproduction device 1 receives the neuronal frequency fn from the neuronal interface 2, in particular by means of the receiver 10, it provides the received neuronal frequency fn to the controller 14.

[0065] In particular, the controller 14 is capable of determining, based on the neuronal frequency fn, the command to be implemented. Specifically, the controller 14 is capable of searching for the command cmd associated with a frequency f equal to the neuronal frequency fn. For example, the controller 14 is capable of consulting a frequency storage device 140, such as a frequency database, in which the pairs of given frequency-associated given command corresponding to the visual neuronal stimulators of the reproduction device are stored. In particular, the reproduction device 1 includes the frequency storage device 140.

[0066] In particular, the controller 14 is capable of commanding the reproduction of a specific page of the paginated content according to the command cmd, cmd(m+l) thus determined. For example, the controller 14 commands the reproducer 15 with the command cmd, cmd(m+l) thus determined.

[0067] In this case, in the example of [Fig. 1], the command cmd, cmd(m+l) is a command to reproduce the next page. Therefore, the display 17 displays the next page of the reproduced content c(m+l).

[0068] Figure 2a illustrates a simplified diagram of a frequency detector in a neuronal signal according to the invention.

[0069] The frequency detector 3 of a neuronal signal sn comprising: - an analyzer 30 of a neuronal signal sn capable of identifying a given frequency f of a visual stimulus sv(f) reproduced by a visual neuronal stimulator 12, 12i, the given frequency f being associated with a given command cmd of a paged content reproduction device 1, the visual neuronal stimulator 12, 12i being positioned pos, pos; on the reproduction device 1 according to the associated given command cmd.

[0070] In particular, a direct neural interface 2 carried by the user U of the reproduction device 1 provides the neural signal sn to the frequency detector 3.

[0071] In particular, the analyzer 30 determines the neuronal frequency fn of the neuronal signal sn of a user U of the reproduction device 1. The neuronal frequency fn thus determined corresponds to the given frequency f of the visual stimulus sv(f) when the user U looks at the visual neuronal stimulator 12, 12i reproducing the visual stimulus sv(f).

[0072] In particular, the analyzer 30 is capable of performing real-time analysis of the neural signal sn. This makes it possible to reduce the delay between the user U's neural interaction with the reproduced content and the implementation of the associated given command.

[0073] In particular, the frequency detector 3 provides the neuronal frequency fn as a given frequency identified f to the reproduction device 1. Thus, the reproduction device 1 can implement the given command cmd associated with the given frequency f corresponding to the neuronal frequency provided fn when reproducing the paged content c.

[0074] In one particular embodiment, the frequency detector 13 is implemented in the reproduction device 1 (see [Fig. 1]). In an alternative embodiment, the frequency detector 23 is implemented in the direct neural interface 2 (see [Fig. 2b]).

[0075] Fig. 2b illustrates a simplified diagram of a frequency detector in a neural signal implemented in a direct neural interface according to the invention.

[0076] The direct neural interface 2 is capable of providing a neural signal sn in particular as a function of an evoked potential captured seeg from the user U of the paged content reproduction device 1.

[0077] In particular, the direct neural interface 2 is suitable for being worn by the user U of the paged content reproduction device 1.

[0078] In particular, the direct neural interface 2 comprises one or more neural sensors 21b, 212, ..., 21k. Each neural sensor 21b, 212, ..., 21k is capable of capturing an evoked potential from the user's brain Useeg. Specifically, the neural sensor is capable of providing a captured signal scb, sc2, ..., sck containing the captured evoked potential seeg. In other words, the neural sensors capture neural signals in which one or more evoked potentials can be found. In particular, several sensors can detect the same evoked potential (with more or less difference depending on the inter-sensor distance).

[0079] In particular, the sensors 21b 212, ..., 21k are optimally placed in the direct neural interface 2 to be optimally positioned relative to the brain of the user U wearing the direct neural interface 2 in order to detect evoked potentials (in particular they are positioned relative to the occipital area of ​​the brain).

[0080] In particular, the direct neural interface includes a neural signal detector 22. The neural signal detector 22 is capable of detecting a neural signal sn in particular as a function of a captured evoked potential.

[0081] In particular, the neuronal sensor 21 b 212, ..., 21k is capable of providing the captured signal scb sc2, ..., sck to the neuronal signal detector 22. The neuronal signal detector 22 is then capable of providing the neuronal signal sn as a function of the captured signals SCj, SC2, .sc^.

[0082] In particular, the direct neural interface 2 is capable of providing the neural signal sn to the reproduction device 1. Thus, the reproduction device 1 is capable of controlling the reproduction of a specific page c(mj) of the paged content c as a function of the received neural signal sn.

[0083] In the example of [Fig.2b], the direct neural interface 2 includes, in particular, a frequency detector 23 of the neural signal sn. The frequency detector 23 is capable of identifying a given frequency f of a visual stimulus sv(f) reproduced by a visual neural stimulator 12, 12i.

[0084] In particular, the frequency detector 23 comprises: - an analyzer 230 of a neuronal signal sn capable of identifying a given frequency f of a visual stimulus sv(f) reproduced by a visual neuronal stimulator 12, the given frequency f being associated with a given command cmd of the paged content reproduction device 1, the visual neuronal stimulator 12 being positioned pos on the reproduction device 1 according to the associated given command cmd.

[0085] In particular, the analyzer 230 determines the neuronal frequency fn of the neuronal signal sn of a user U of the playback device 1. The neuronal frequency fn thus determined corresponds to the given frequency f of the visual stimulus sv(f) when User U looks at the visual neural stimulator 12, 12i reproducing the visual stimulus sv(f).

[0086] In particular, the frequency detector 23 provides the neuronal frequency fn as a given frequency identified f to the reproduction device 1. Thus, the reproduction device 1 can implement the given command cmd associated with the given frequency f corresponding to the neuronal frequency provided fn when reproducing the paged content c.

[0087] In particular, the direct neural interface 2 is implemented in a headset. Specifically, the direct neural interface is an EEG headset. The headset constituting the direct neural interface 2 is particularly lightweight and comfortable. It is particularly capable of measuring neural signals sn without interfering with the experience of viewing, or reading, the reproduced page of content.

[0088] Figure 3 illustrates a diagram of the exchanges between the processes implemented by the invention, in particular the process for reproducing paginated content and the frequency detection process.

[0089] Figure 3 illustrates a CR paginated content reproduction process implemented by a DR paginated content reproduction device. The CR reproduction process comprises: - reproduce PG_RPR a page c(m) of paginated content c, and - trigger ST_TRG a VNS reproduction of a visual neuronal stimulus sv(f) at a given frequency f, the given frequency f being associated with a given command cmd of the reproduction device 1, the VNS reproduction of the visual neuronal stimulus sv(f) being positioned pos on the reproduction device 1 according to the given associated command cmd.

[0090] In particular, the CR reproduction process comprises: - control RCNT the reproduction of the paged content CR according to a given command cmd associated with a frequency fn of a received neuronal signal sn.

[0091] In particular, the CR reproduction process comprises: - detect an FDTCT frequency of a neuronal signal sn, the detection of FDTCT frequency triggering RCNT control by a cmd command associated with the detected frequency fn when the detected frequency fn corresponds to a given frequency f.

[0092] In particular, the FDTCT frequency detection comprises: - analyze SN_NZ a neuronal signal sn, the analysis of the neuronal signal SN_NZ identifying a given frequency f of a visual stimulus sv(f) reproduced by a visual neuronal stimulator VST, the given frequency f being associated with a given command cmd of the DR reproduction device of paged contents, the visual neuronal stimulator VST being positioned on the DR reproduction device according to the given associated command cmd.

[0093] Fig. 3 further illustrates a method for detecting FDTCT frequency in a neuronal signal sn.

[0094] This FDTCT frequency detection method is either implemented in an independent device, such as an FDT frequency detector not illustrated by [Fig.3], or implemented by the CR paged content reproduction method, or implemented by the IN neural interaction method.

[0095] The FDTCT frequency detection method detects the neuronal frequency fn of the neuronal signal sn captured by the direct neuronal interface IN.

[0096] The FDTCT frequency detection method comprises: - analyze SN_NZ a neuronal signal sn, the analysis of the neuronal signal SN_NZ identifying a given frequency f of a visual stimulus sv(f) reproduced by a visual neuronal stimulator VST, the given frequency f being associated with a given command cmd of the DR reproduction device of paged contents, the visual neuronal stimulator VST being positioned on the DR reproduction device according to the given associated command cmd.

[0097] In particular, the SN_NZ analysis identifies a given frequency f in a neuronal signal sn when the amplitude of the neuronal signal sn is greater than a threshold amplitude (not shown).

[0098] As the field of vision moves towards the visual neural stimulator, for example the LED, the activation in the brain (i.e. the evoked potential) is amplified and it is possible to define a threshold from which the evoked potential will be detected.

[0099] Thus, if the user U perceives the visual neuronal stimulus sv(f) without looking at it, the amplitude of the neuronal signal sn, whose neuronal frequency fn corresponds to the given frequency f of the stimulus sv(f), will be less than or equal to the threshold amplitude. The frequency detection system will therefore not consider the neuronal frequency fn as detected and will not provide a detected frequency. Consequently, the frequency detection FDTCT will not trigger any command through the RCNT control.

[0100] However, if the user U looks at the visual neural stimulus sv(f), particularly because it is located directly after the end of the displayed text on the reproduced page c(m), the amplitude of the neural signal sn, whose neural frequency fn corresponds to the given frequency f of the stimulus sv(f), will be greater than the threshold amplitude. The frequency detection system will then consider the neural frequency fn to be detected and will provide it as the detected frequency. Consequently, the frequency detection system FDTCT will trigger the given command cmd by the RCNT control, the given command cmd being that associated with the given frequency f equal to the detected neural frequency fn.

[0101] Consider that the CR paginated content reproduction process implements the reproduction of paginated content c, notably obtained OBT (not illustrated) from a BDC content database. The reproduced paginated content c is notably obtained OBT from the BDC content database following an RQ_EM submission of a c_rq content request, notably via the CR content reproduction process.

[0102] The CR paged content reproduction process then involves the reproduction PG_RPR of a page c(m) of the paged content c, generally starting with the first page m=l, and the triggering of visual neural stimuli ST_TRG, particularly appropriate for the page being reproduced.

[0103] In particular, the CR paged content reproduction process includes triggering ST_TRG stimulus.

[0104] In particular, the reproduction of a PG_RPR page triggers the ST_TRG stimulus. Optionally, the ST_TRG stimulus trigger command includes an indication of the page being reproduced (specifically, the type of page reproduced: table of contents page, any page, first chapter page, etc.). Thus, the ST_TRG stimulus trigger will elicit different visual neural stimuli depending on the type of page being reproduced.

[0105] In particular, the CR paged content reproduction process includes one or more visual neuronal stimulations VNS, notably implemented by one or more visual neuronal stimulators VST.

[0106] In particular, the triggering of stimulus ST_TRG triggers one or more visual neuronal stimulations VNS, in particular depending on the type of page reproduced.

[0107] A user U views, or even reads, a reproduced paginated content c, in particular the reproduced page c(m) of the paginated content c.

[0108] In particular, when the visual neural stimulus sv(f) is reproduced in a position placed at the end of the reading of the reproduced page c(m), the user U looks at the visual neural stimulus sv(f) once the reading of the reproduced page c(m) of the content c is completed.

[0109] In this case, that is to say when the user U looks at the visual neuronal stimulus sv(f), the visual neuronal stimulus sv(f) of given frequency f triggers a seeg evoked potential in the brain of the user U whose frequency is equal to the given frequency f of the visual neuronal stimulus sv(f).

[0110] In particular, a direct neuronal interaction method IN implemented by a direct neuronal interface BCI is capable of determining a neuronal signal sn as a function of the evoked potential seeg of the user's brain U.

[0111] In particular, the direct neuronal interaction process IN includes: - capturing CPT an evoked potential seeg from the user's brain U.

[0112] In particular, CPT capture provides a captured signal sc as a function of the evoked potential seeg of the user U's brain during CPT capture. Note that the frequency of the captured signal sc is equal to the given frequency of the visual neuronal stimulus sv(f) when the user U is looking at the visual neuronal stimulus sv(f).

[0113] In particular, the direct neuronal interaction method IN includes neuronal detection BDTCT. Neuronal detection BDTCT detects a neuronal signal sn as a function of the evoked potential seeg of the user U's brain during CPT capture, specifically as a function of the captured signal sc provided by the CPT capture. It should be noted that the frequency of the neuronal signal sn is equal to the given frequency of the visual neuronal stimulus sv(f) when the user U views the visual neuronal stimulus sv(f).

[0114] In particular, the direct neuronal interaction process IN, in particular neuronal detection BDTCT, provides the neuronal signal sn to the reproduction process CR.

[0115] Optionally, the direct neuronal interaction method IN includes frequency detection FDTCT. Thus, the direct neuronal interaction method IN detects the neuronal frequency fn of the captured neuronal signal sn, notably provided by neuronal detection BDTCT.

[0116] In particular, the IN direct neuronal interaction process, in particular the FDTCT frequency detection of the IN direct neuronal interaction process, provides the frequency fn of the neuronal signal sn to the CR reproduction process.

[0117] In general, the direct neuronal interaction process IN provides neuronal feedback m to the reproduction process CR, either the neuronal signal sn, or the frequency fn of the neuronal signal sn.

[0118] In particular, the CR reproduction method includes FDTCT frequency detection. Thus, the CR reproduction method detects the neuronal frequency fn of the neuronal signal sn provided by the direct neuronal interaction IN, notably by neuronal detection BDTCT.

[0119] In particular, the CR reproduction process includes RCNT control of reproduction as a function of neuronal frequency fn provided either by frequency detection FDTCT of the CR reproduction process, or by direct neuronal interaction IN (in particular by frequency detection FDTCT of the direct neuronal interaction process IN).

[0120] In particular, the RCNT command command directly reproduces a page of the paginated content PG_RPR.

[0121] In particular, the RCNT control includes: - measure the duration of the detected neuronal frequency DMST able to determine the duration tn during which a neuronal frequency fn is detected.

[0122] In particular, the RCNT control includes: - check tn>Tn if the measured duration tn of the detected neuronal frequency fn is long.

[0123] For example, if the measured duration tn is greater than a threshold duration Tn, it is considered long. The verification tn>Tn is notably performed on the measured duration tn provided by the DMST duration measurement.

[0124] Thus, when user U glances quickly at the visual neural stimulus sv(f), the duration tn of the corresponding neural frequency fn will be short, even instantaneous (for example, a duration of a few microseconds). And, when user U looks intently at the visual neural stimulus sv(f), the duration tn of the corresponding neural frequency fn will be long (for example, a duration of a few seconds). Therefore, for the same given frequency of a visual neural stimulus sv(f), not one but two commands can be associated, depending on the duration tn of the detected neural frequency. For example, a short duration will be associated with a command to advance to the related page (next or previous), while a long duration will be associated with a command to advance to the first page of the related chapter (next or previous).

[0125] These associations of a given frequency, a given type of duration, and a given command will notably be previously recorded in a frequency storage device, such as a frequency database (FDB). The association and the recording of the association (not illustrated) are implemented in particular during the manufacture of the DR reproduction device, or even during the loading of the CR reproduction process into a DR reproduction device.

[0126] In particular, the RCNT control includes: - determine CMD_DT a cmd command based on the detected neuronal frequency fn.

[0127] In the absence of a duration measure tn, the CMD_DT command determination provides a simple page change command: command to reproduce a related page (previous or next page) cmd(m± 1), or command to reproduce a given page cmd ( mi), such as the summary page 1=M for example, or page referenced in the reproduced page, etc.

[0128] In particular, the determination of the CMD_DT command is performed according to the duration type tn of the detected neuronal frequency fn, specifically provided by the tn>Tn check. For example, when the tn>Tn check indicates a long duration [Y], the determination of the CMD_DT command searches for the given command associated with the neuronal frequency for a long duration tn, for example, a chapter change command cmd(mj+\). When the tn>Tn check indicates a short duration [N], the determination of the CMD_DT command searches for the given command associated with the neuronal frequency for a short duration tn, for example, a related, neighboring page change command cmd(m± 1).

[0129] The RCNT control then commands the reproduction of page PG_RPR using the command cmd, which is a function of the neuronal frequency fn, notably provided by the determination of the command CMD_DT. The RCNT control commands cmd to reproduce page PG_RPR the reproduction of a page c(mm m) of the paginated content other than the one currently being reproduced c(m).

[0130] The new page C(mm ^m) of the paginated content thus reproduced can be consulted, or even read, by the user U.

[0131] Furthermore, it will also be possible to add a time period (not shown) during which the displayed page cannot be changed, in particular by being turned inadvertently (for example, if one looks directly at the visual neural stimulator). This invariance period can be estimated from statistics on the consultation, or even reading, of the current content, or even of previously consulted content of the same type as the current content. Thus, depending on the type of content, the font size, the user, etc. Once this invariance period has expired, the given command associated with a detected neural frequency can be implemented; for example, the page can be turned.

[0132] These processes are fast and transparent to the user, offering a smooth and uninterrupted consultation, or even reading, experience.

[0133] A particular embodiment of the paginated content reproduction method and / or the frequency detection method consists of a program comprising program code instructions for executing the steps of the paginated content reproduction method and / or the frequency detection method when said program is executed by a processor.

[0134] Figures 4a and 4b show simplified diagrams in which at least one visual neural stimulator is placed on the frame of a paged content reproduction device according to the invention.

[0135] The paginated content reproduction device 1 includes in particular a display 17, such as a screen, and at least one visual neural stimulator 12+, 12_, 120> 12i ,12j. The screen 17 is capable of displaying a page c(m) of paginated content c.

[0136] In the embodiment of figures 4a and 4b, the paged content reproduction device 1 comprises a frame 11 surrounding the screen 17. The visual neural stimulators 12+, 12_, 120>12i 12j are arranged on this frame 11. Each visual neural stimulator 12+, 12_, 120,12i.. 12j emits a visual neural stimulus of distinct frequencies sv(f+), sv(f_), sv(f0),sv(fi),... , sv(fj).

[0137] In particular, the visual neural stimulators 12+, 12_, 120>12i 12j are light-emitting diodes of distinct frequencies f+, I', f0, fi,... , fj, also called LEDs. In particular, the diode blinks at a fixed frequency corresponding to the frequency Given f. This frequency is, for example, 12 Hz, or between 1 and 60 Hz (particularly when several diodes are used). In another embodiment, the diode blinks at a variable frequency, for example a succession of frequencies, notably constituting a code.

[0138] Using a given frequency of 12 Hz for a visual neuronal stimulus, in particular the blinking of a light-emitting diode, makes it possible to generate robust and easily detectable evoked potentials in EEG signals. That is to say, the neuronal frequency fn of the neuronal signal sn will be easier to detect and will correspond more accurately to the given frequency of the visual neuronal stimulus when the user U is looking at it.

[0139] When the diode enters the peripheral field of vision of the user U (in particular when reading the reproduced page of the content), the blinking frequency generates a stationary visual evoked potential or SSVEP in the brain of the user U. This evoked potential is detectable in particular by means of a direct neural interface, such as an EEG headset and, possibly, a frequency detection algorithm.

[0140] Fig. 4a illustrates a first example of neural stimulators placed on the frame of a device for reproducing paginated content according to the invention.

[0141] In this first example, the reproduction device 1 includes a reduced number of visual neural stimulators: only one 12+ (to go to the next page), or even two or a maximum of three (to return to the previous page 12_, and / or access the summary of the content 120).

[0142] The reproduced page c(m) has a reading direction rd from left to right and from top to bottom, also called the western reading direction.

[0143] According to the invention, the visual neural stimulator 12+ reproducing a visual neural stimulus sv(f+) whose given frequency f+ is associated with a command to go to the next page cmd(m+l) is positioned on the bottom right corner of the frame 11 so that the user U looks at it naturally at the end of reading the page c(m) reproduced on the screen 17.

[0144] Thus, user U, upon finishing reading the reproduced page c(m) with their gaze directed to the bottom right of screen 17, naturally looks at the visual neuronal stimulus sv(f+) emitted by the visual neuronal stimulator 12+. This generates a neuronal signal sn with neuronal frequency fn corresponding to the given frequency f+ of this visual neuronal stimulus sv(f+). The reproduction device 1 then implements the given command cmd(m+l) associated with this given frequency and reproduces the next page c(m+l) of the paginated content on screen 17.

[0145] For another reading direction rd (not illustrated), for example Japanese: from top to bottom and right to left, the visual neural stimulator 12+ reproducing a visual neural stimulus sv(f+) whose given frequency f+ is associated with a command to go to the next page cmd(m+l) will be positioned on the bottom left corner of the frame 11 so that the user U looks at it naturally at the end of reading the page c(m) reproduced on the screen 17.

[0146] In particular, the position of the visual neural stimulator 12+ on the frame 11 is optimized so as not to distract the user U during the consultation, or even the reading, of the reproduced page c(m) but to be sufficiently visible at the end of the consultation, or even the reading, of this page.

[0147] According to the invention, the visual neural stimulator 12_ reproducing a visual neural stimulus sv(f_) whose given frequency f_ is associated with a return to the previous page command cmd(ml) is positioned on the top left corner of the frame 11 so that the user U looks at it naturally when returning before the start of reading the page c(m) reproduced on the screen 17 (for example, before the first word reproduced on this page).

[0148] Thus, the user U, wishing to go back from the page c(m) displayed, naturally looks at the top left of the screen 17 while looking at the visual neuronal stimulus sv(f_) emitted by the visual neuronal stimulator 12. This generates a neuronal signal sn with a neuronal frequency fn corresponding to the given frequency f of this visual neuronal stimulus sv(f). The playback device 1 then implements the given command cmd(ml) associated with this given frequency and reproduces the next page c(ml) of the paginated content on the screen 17.

[0149] By convention, in order to avoid in particular the gaze of the user U when he is reading the reproduced page of the content c(m), the visual neural stimulator 120 reproducing a visual neural stimulus sv(f0) whose given frequency f0 is associated with a command to go to the summary page cmd(M) is positioned away from the reading of the reproduced page c(m), for example at the bottom in the middle of the frame 11 so that the user U only looks at it when he wants to access the summary.

[0150] Thus, the user U wishing to access the table of contents of which a page is reproduced conventionally looks at the visual neuronal stimulus sv(f0) emitted by the visual neuronal stimulator 120. This generates a neuronal signal sn of neuronal frequency fn corresponding to the given frequency f0 of this visual neuronal stimulus sv(f0). The reproduction device 1 then implements the given command cmd(M) associated with this given frequency and then reproduces the table of contents page c(M) of the paginated content on the screen 17.

[0151] Fig. 4b illustrates a second example of neural stimulators placed on the frame of a device for reproducing paginated content according to the invention.

[0152] In this second example, the reproduction device 1 comprises a significant number of visual neural stimulators, including: - those shown in [Fig. 4a], namely the visual neural stimulators 12+ (to go to the next page), 12_ (to return to the previous page), and / or 120 (access the table of contents); and - possibly visual neural stimulators 12i 12j planned in association with references, in this case reproduced on a summary page c(M).

[0153] In the second example illustrated by [Fig. 4b], the reproduced page c(M) is a summary of the paginated content c. It indicates a list of chapters chl, ch2, ..., chj and the first pages of each of these chapters mb m2, ..., mj. And, visual neural stimulators 12i 12j are associated with each of these chapters, more precisely the given frequencies fb... , fj of the visual neural stimuli sv(fi),... , sv(fj) emitted by each of these visual neural stimulators 12i...12j are respectively associated with given commands cmd(mj), cmd(m2), ..., cmd(nij) corresponding to commands for reproducing the first pages of each of these chapters.

[0154] According to the invention, the visual neural stimulators 12i...12j respectively reproducing a visual neural stimulus sv(fi),... , sv(fj) whose given frequency fi,... , fj is associated with a command cmd(mi), cmd(m2), ..., cmd(nij) of reproduction of the first of the chapter chl, ch2, ..., chj is positioned on the left of the frame 11 opposite the reproduction of the mention of the chapter concerned on the reproduced summary page so that the user U looks at it naturally while continuing to read the line of the summary associated with the chapter of interest to him reproduced on the screen 17.

[0155] Thus, the user U wishing to access chapter chj continues reading the corresponding line and naturally looks at the visual neuronal stimulus sv(fj) emitted by the visual neuronal stimulator 12j positioned on the frame at the end of this line. This generates a neuronal signal sn of neuronal frequency fn corresponding to the given frequency fj of this visual neuronal stimulus sv(fj). The reproduction device 1 then implements the given command cmd(nij) associated with this given frequency and reproduces the first page c(mj) of chapter chj of the paginated content on the screen 17.

[0156] Figures 5a and 5b show simplified diagrams in which at least one visual neural stimulator is reproduced directly by the display of a paged content reproduction device according to the invention.

[0157] The device for reproducing paginated content 1 includes, in particular, a display 17, such as a screen. The screen 17 constitutes, in at least one area thereof, a visual neural stimulator 172+, 172., 1720>172i 172j. The screen 17 is capable of displaying a page c(m) of paginated content c.

[0158] Thus, the screen 17 emits at least one visual neuronal stimulus of distinct frequencies sv(f+), sv(f), sv(f0), sv(fi),... , sv(fj) in a dedicated area of ​​the screen corresponding to a visual neuronal stimulator 172+, 172i, 172j

[0159] The advantage of using an area of ​​the screen as a visual neural stimulator is to be able to adapt the number of visual neural stimulators to the reproduced page of paginated content and / or the position of this / these visual neural stimulator(s) to the reproduced page of paginated content.

[0160] Fig. 5a illustrates a first example of neural stimulators reproduced by the screen of a device for reproducing paged content according to the invention.

[0161] In this first example, the page reproduced on the screen 17 of the reproduction device 1 being any page, the screen 17 displays a reduced number of visual neural stimulators: only one 172+ (to go to the next page), or even two or a maximum of three (to return to the previous page 172, and / or access the summary of the content 1720).

[0162] The reproduced page c(m) has a reading direction rd from left to right and from top to bottom.

[0163] According to the invention, the area of ​​the screen 17 consisting of a neural stimulator visual 172+ reproducing a visual neuronal stimulus sv(f+) whose given frequency f+ is associated with a command to move to the next page cmd(m+l) is positioned in the bottom right corner of the screen 17 so that the user U looks at it naturally at the end of reading the page c(m) reproduced on the screen 17.

[0164] Thus, user U, upon finishing reading the reproduced page c(m) with their gaze directed to the bottom right of screen 17, naturally looks at the visual neuronal stimulus sv(f+) emitted by the visual neuronal stimulator 172+. This generates a neuronal signal sn with neuronal frequency fn corresponding to the given frequency f+ of this visual neuronal stimulus sv(f+). The reproduction device 1 then implements the given command cmd(m+l) associated with this given frequency and reproduces the next page c(m+l) of the paginated content on screen 17.

[0165] According to the invention, the area of ​​the screen 17 consisting of a visual neural stimulator 172, reproducing a visual neural stimulus sv(f.) whose given frequency f. is associated with a command to return to the previous page cmd(ml), is positioned in the top left corner of the screen 17 so that the user U naturally looks at it when returning before the start of reading the page c(m) reproduced on the screen 17, that is to say, naturally looks at the visual neural stimulator and therefore at the visual neural stimulus that it reproduces.

[0166] Thus, the user U, wishing to go back from the page c(m) displayed, naturally looks at the top left of the screen 17 while looking at the visual neuronal stimulus sv(f_) emitted by the visual neuronal stimulator 172. This generates a neuronal signal sn of neuronal frequency fn corresponding to the given frequency f of this visual neuronal stimulus sv(f). The playback device 1 then implements the given command cmd(ml) associated with this given frequency and reproduces the next page c(ml) of the paginated content on the screen 17.

[0167] By convention, in order to avoid in particular the gaze of the user U when he is reading the reproduced page of the content c(m), the area of ​​the screen 17 consisting of a visual neural stimulator 120 reproducing a visual neural stimulus sv(f0) whose given frequency f0 is associated with a command to go to the summary page cmd(M) is positioned away from the reading of the reproduced page c(m), for example at the bottom in the middle of the screen 17 so that the user U looks at it only when he wants to access the summary, that is to say he looks at this visual neural stimulator and therefore at this visual neural stimulus which it reproduces only when he wants to access the summary.

[0168] Thus, the user U wishing to access the table of contents of a page being reproduced conventionally looks at the visual neuronal stimulus sv(f0) emitted by the visual neuronal stimulator 1720. This generates a neuronal signal sn of neuronal frequency fn corresponding to the given frequency f0 of this visual neuronal stimulus sv(f0). The reproduction device 1 then implements the given command cmd(M) associated with this given frequency and reproduces the table of contents page c(M) of the paginated content on the screen 17.

[0169] Fig. 5b illustrates a second example of neural stimulators reproduced by the screen of a device for reproducing paged content according to the invention.

[0170] In this second example, the reproduction device 1 comprises a significant number of visual neural stimulators, including: - those shown in [Fig. 5a], namely the visual neural stimulators 172+ (to go to the next page), 172 (to return to the previous page), and / or 1720 (access the table of contents); and - possibly visual neural stimulators 172i 172j provided in association with references, in this case reproduced on a summary page c(M).

[0171] In the second example illustrated by [Fig. 5b], the reproduced page c(M) is a summary of the paginated content c. It indicates a list of chapters ch1, ch2, ..., ch1 and the first pages of each of these chapters mb m2, ..., m1. And, areas of the screen 17 consisting of visual neural stimulators 172i 172j are associated with each of these chapters, more precisely the given frequencies fi, ..., f1 of the stimuli visual neuronal sv(fi),... , sv(fj) emitted by each of these visual neuronal stimulators 12i...12j are respectively associated with given commands cmd(mj), cmd(m2), ..cmd(mj) corresponding to commands for reproducing the first pages of each of these chapters.

[0172] According to the invention, the visual neural stimulators 172i...172j respectively reproduce a visual neural stimulus sv(fi),... , sv(fj) whose given frequency fi,... , fj is associated with a command cmd(mi), cmd(m2), ..., cmd(nij) of reproduction of the first of the chapter chl, ch2, ..., chj is positioned on the left of the screen 17 opposite the reproduction of the mention of the chapter concerned on the reproduced summary page so that the user U looks at it naturally while continuing to read the line of the summary associated with the chapter of interest to him reproduced on the screen 17.

[0173] Thus, the user U wishing to access chapter chj continues reading the corresponding line and naturally looks at the visual neuronal stimulus sv(fj) emitted by the visual neuronal stimulator 172j positioned in the right part of the screen 17 at the end of this line. This generates a neuronal signal sn of neuronal frequency fn corresponding to the given frequency fj of this visual neuronal stimulus sv(fj). The reproduction device 1 then implements the given command cmd(nij) associated with this given frequency and then reproduces the first page c(mj) of chapter chj of the paginated content on the screen 17.

[0174] Neural interaction with a paginated content reproduction device allows for a completely hands-free page change, ideal for users with physical limitations, occasional constraints (meals, manual work - cooking, workshop, etc. - ...) or those wishing for an uninterrupted experience.

[0175] The device for reproducing paginated content includes, in particular, an electronic reader but also any device enabling the reproduction of such content, such as tablets, smartphones, computer screens...

[0176] The invention also relates to a medium. The information medium can be any entity or device capable of storing the program. For example, the medium can include a storage means, such as a ROM, for example a CD-ROM or a microelectronic circuit ROM, or a magnetic recording means, for example a floppy disk or a hard disk drive.

[0177] On the other hand, the information medium can be a transmissible medium such as an electrical or optical signal that can be transmitted via an electrical or optical cable, by radio, or by other means. The program according to the invention can, in particular, be downloaded onto a network, especially an Internet-type network.

[0178] Alternatively, the information carrier may be an integrated circuit in which the program is incorporated, the circuit being adapted to execute or to be used in the execution of the process in question.

[0179] In another implementation, the invention is implemented by means of software and / or hardware components. In this context, the term module can refer to either a software component or a hardware component. A software component corresponds to one or more computer programs, one or more subroutines of a program, or more generally to any element of a program or software capable of implementing a function or a set of functions as described above. A hardware component corresponds to any element of a hardware assembly capable of implementing a function or a set of functions.

Claims

Demands

1. A device for reproducing paginated content comprising: - a visual neural stimulator at a given frequency, the given frequency being associated with a given command of the reproduction device, the visual neural stimulator being positioned on the reproduction device according to the associated given command.

2. A device for reproducing paginated content according to the preceding claim, in which the reproduction device comprises: - a controller for reproducing paginated content capable of applying to the reproduced paginated content a given command associated with a frequency of a received neural signal.

3. A device for reproducing paginated content according to any one of the preceding claims, wherein the reproduction device comprises: - a frequency detector in a neural signal, the frequency detector being capable of: + identifying a given frequency of a visual stimulus reproduced by a visual neural stimulator, and + triggering a command associated with the detected frequency when the detected frequency corresponds to a given frequency.

4. A device for reproducing paginated content according to any one of the preceding claims, wherein the given frequency is a blinking frequency of a visual stimulus reproduced by the visual neural stimulator.

5. A device for reproducing paginated content according to any one of the preceding claims, wherein the given command is a command to change pages of the reproduced paginated content.

6. A device for reproducing paginated content according to any one of the preceding claims, wherein the position of the visual neural stimulator is a function of the reading direction of a page of the reproduced paginated content.

7. A device for reproducing paginated content according to any one of the preceding claims, wherein the visual neural stimulator is a stimulator among the following: - a physical device; - a light-emitting diode; - a part of a screen corresponding to a peripheral display area of ​​a screen reproducing the paginated content in a central display area.

8. Frequency detector of a neuronal signal comprising: - a neuronal signal analyzer capable of identifying a given frequency of a visual stimulus reproduced by a visual neuronal stimulator, the given frequency being associated with a given command of a paged content reproduction device, the visual neuronal stimulator being positioned on the reproduction device according to the associated given command.

9. A method for reproducing paginated content implemented by a paginated content reproduction device, the reproduction method comprising: - reproducing a page of paginated content, and - triggering a reproduction of a visual neural stimulus at a given frequency, the given frequency being associated with a given command of the reproduction device, the reproduction of the visual neural stimulus being positioned on the reproduction device according to the associated given command.

10. A method for reproducing paginated content according to the preceding claim, wherein the reproduction method comprises: - controlling the reproduction of the paginated content according to a given command associated with a frequency of a received neural signal.

11. A method for reproducing paginated content according to any one of claims 9 or 10, wherein the reproduction method comprises: - detecting a frequency of a neural signal, the frequency detection triggering control by a command associated with the detected frequency when the detected frequency corresponds to a given frequency.

12. A method for reproducing paginated content according to the preceding claim, wherein the frequency detection comprises: - analyzing a neural signal, the analysis of the neural signal identifying a given frequency of a visual stimulus reproduced by a visual neural stimulator, the given frequency being associated with a given command of a paginated content reproduction device, the visual neural stimulator being positioned on the reproduction device according to the associated given command.

13. Method for detecting frequency in a neuronal signal comprising: - analyzing a neuronal signal, the analysis of the neuronal signal identifying a given frequency of a visual stimulus reproduced by a visual neuronal stimulator, the given frequency being associated with a given command of a paged content reproduction device, the visual neuronal stimulator being positioned on the reproduction device according to the associated given command.

14. A frequency detection method according to the preceding claim, wherein the analysis identifies a given frequency in a neuronal signal when the amplitude of the neuronal signal is greater than a threshold amplitude.

15. A program comprising program code instructions for executing the steps of the method for reproducing paginated content according to any one of claims 9 to 12 and / or the method for frequency detection according to any one of claims 13 or 14 when said program is executed by a processor.

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