KR101710448B1 - Apparatus for providing audiovisual information using electrical stimulus - Google Patents

Apparatus for providing audiovisual information using electrical stimulus Download PDF

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Publication number
KR101710448B1
KR101710448B1 KR1020160025058A KR20160025058A KR101710448B1 KR 101710448 B1 KR101710448 B1 KR 101710448B1 KR 1020160025058 A KR1020160025058 A KR 1020160025058A KR 20160025058 A KR20160025058 A KR 20160025058A KR 101710448 B1 KR101710448 B1 KR 101710448B1
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South Korea
Prior art keywords
electrode
signal
electrode pad
information
control table
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KR1020160025058A
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Korean (ko)
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이상열
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이상열
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication
    • H04R5/0335—Earpiece support, e.g. headbands or neckrests
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/13—Hearing devices using bone conduction transducers

Abstract

An apparatus for providing audiovisual information through electrical stimulation according to an embodiment of the present invention includes: an electrode pad attached to a user's body and having a matrix-shaped electrode array structure; A sensor sensing unit that acquires three-dimensional stereoscopic information about a shape and a distance of an object around the sensor using a sensor; And a controller for selectively applying an electric signal to each of the electrode arrays of the electrode pad based on the three-dimensional stereoscopic information to provide an electric stimulus for recognizing the peripheral object to the user through an output signal of the electrode pad .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for providing audiovisual information through electrical stimulation,

Embodiments of the present invention relate to an apparatus for providing audiovisual information through electrical stimulation.

Human skin is sensitive compared to other body organs, so it has a characteristic of reacting immediately.

Accordingly, the senses of the skin can be utilized as a third visual or auditory information sensing body, and information about nearby objects can be converted into electrical signals and transmitted to the skin.

However, when the skin is used as a sensing body for audiovisual information as described above, only general methods such as simply applying electrical stimulation or generating an acoustic warning have been used.

Therefore, in order to transmit information of an object to a person's skin in real time, development of a technique of applying electrical stimulation to the skin step by step, reflecting the information of the object, that is, passing electric signals different from each other through electric stimulation points attached to the skin .

Related prior arts are Korean Patent Publication No. 10-2008-0027378 (titled " Measurement and stimulation of muscle tissue, public date: March 26, 2008).

In an embodiment of the present invention, an electric signal for three-dimensional information (stereoscopic information and sound information) obtained from an object is selectively applied to an electrode pad attached to a user's body so that the user can recognize three- And provides an audiovisual information providing apparatus through electrical stimulation.

The problems to be solved by the present invention are not limited to the above-mentioned problem (s), and another problem (s) not mentioned can be clearly understood by those skilled in the art from the following description.

An apparatus for providing audiovisual information through electrical stimulation according to an embodiment of the present invention includes: an electrode pad attached to a user's body and having a matrix-shaped electrode array structure; A sensor sensing unit that acquires three-dimensional stereoscopic information about a shape and a distance of an object around the sensor using a sensor; And a controller for selectively applying an electric signal to each of the electrode arrays of the electrode pad based on the three-dimensional stereoscopic information to provide an electric stimulus for recognizing the peripheral object to the user through an output signal of the electrode pad .

The apparatus for providing audiovisual information through electrical stimulation according to an embodiment of the present invention includes a data storage unit for storing signal data corresponding to object shape and distance in a control table corresponding to each electrode position based on the matrix form of the electrode pad, ; And a data processing unit for extracting signal data corresponding to the three-dimensional solid-state information from the control table, wherein the signal applying unit refers to the control table and outputs an electric signal corresponding to the extracted signal data to the electrode pad To the respective electrode positions of the electrodes.

The data storage unit may store the signal data in the control table so as to have intensity and frequency of different voltages according to the shape and distance of the object.

The signal application unit may include a controller for controlling the magnitude and frequency of the voltage with respect to the electric signal when the electric signal is applied to each of the electrode arrays of the electrode pad.

Wherein the signal applying unit extracts a matrix value corresponding to the extracted signal data by referring to the control table and outputs at least one of the array electrodes in the electrode pad based on the extracted matrix value And a selection unit for selecting the electrode.

Wherein the electrode pad has an electrode array structure in which at least two or more electrodes are arranged in a row and a column, and the signal application unit has a structure in which, when the electrode pad has an electrode array structure in which four electrodes are arranged, Wherein the first and second circuits are connected to the first and second electrodes, respectively, and the current intensities flowing through the first and second circuits are controlled so that the intensity of the current flowing through the second circuit is within a certain range The electric signal can be applied to each of the electrode arrays of the electrode pad.

The sensor sensing unit may acquire the three-dimensional stereoscopic image using at least one of a depth sensor and an array camera.

The sensor sensing unit senses the sound of the surrounding object to acquire sound information about the intensity and direction of the sound, and the signal applying unit selectively applies an electric signal to each of the electrode arrays of the electrode pad based on the sound information. can do.

The apparatus for providing audiovisual information through electrical stimulation according to an embodiment of the present invention includes a data storage unit for storing signal data corresponding to the intensity and direction of sound in a control table corresponding to each electrode position based on the matrix form of the electrode pad, ; And a data processing unit for extracting signal data corresponding to the sound information from the control table, wherein the signal applying unit refers to the control table and outputs an electric signal corresponding to the extracted signal data to a corresponding It can be selectively applied to each of the electrode positions.

The details of other embodiments are included in the detailed description and the accompanying drawings.

According to an embodiment of the present invention, an electric signal for three-dimensional information (stereoscopic information and sound information) obtained from an object is selectively applied to an electrode pad attached to a user's body so that a user can obtain three- .

According to an embodiment of the present invention, three-dimensional information (stereoscopic information and sound information) obtained from an object can be displayed to a user by varying the magnitude of the voltage and the magnitude of the frequency according to the shape of the object, By providing electrical stimulation, a user can more intuitively recognize the stereoscopic state of an object.

According to the embodiment of the present invention, it is possible to transmit the three-dimensional configuration information of the object and its change to the skin of the user in real time by converting the audiovisual information analyzed into the three-dimensional space into the electric stimulus, It is possible to grasp the shape information and /

1 is a view for explaining an operation of an audiovisual information providing apparatus through electrical stimulation according to an embodiment of the present invention.
FIG. 2 is a view showing an embodiment of three-dimensional stereoscopic information on an electrode pad according to an embodiment of the present invention.
3 is a block diagram illustrating an apparatus for providing audiovisual information through electrical stimulation according to an embodiment of the present invention.
4 and 5 are diagrams for explaining an electrode pad having an array structure in which two electrodes are arranged in an embodiment of the present invention.
FIG. 6 is a view for explaining an interference phenomenon occurring through each electrode when an electrode pad having an array structure in which four electrodes are arranged, according to an embodiment of the present invention. FIG.
FIG. 7 is a view for explaining a scanning effect in the case of using an electrode pad having an array structure in which four electrodes are arranged.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and / or features of the present invention, and how to accomplish them, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a view for explaining the operation of an apparatus for providing audiovisual information through electrical stimulation according to an embodiment of the present invention. FIG. 2 is a diagram for explaining the operation of the apparatus for providing three- And FIG.

1 and 2, an apparatus for providing audiovisual information through electrical stimulation according to an exemplary embodiment of the present invention may include an image sensor, such as an array camera or a depth sensor, Three-dimensional stereoscopic information can be obtained. That is, the audiovisual information providing apparatus recognizes the surrounding objects with the image recognition sensor and can grasp the three-dimensional stereoscopic shape of the object or the three-dimensional stereoscopic information related to the distance to the object.

In addition, the audiovisual information providing apparatus can acquire three-dimensional acoustic information on the surrounding objects using an acoustic recognition sensor such as a mic array. That is, the audiovisual information providing device can recognize the sound of the surrounding objects with the acoustic recognition sensor, and can grasp the three-dimensional acoustic information related to the intensity and direction of the sound.

Thereafter, the audiovisual information providing apparatus can perform signal processing for converting the three-dimensional information (three-dimensional stereo information and three-dimensional sound information) obtained from the surrounding objects into a two-dimensional electric signal .

At this time, the converted electrical signal may be transmitted to the electrode pad attached to the user's body.

In other words, the audiovisual information providing apparatus applies the converted electric signal to each electrode of the electrode pad on which a plurality of electrodes are arranged, so that the user recognizes the three-dimensional information by feeling electric stimulation from the electrode pad can do.

The configuration and function of the audiovisual information providing apparatus will be described in more detail with reference to FIG.

3 is a block diagram illustrating an apparatus for providing audiovisual information through electrical stimulation according to an embodiment of the present invention.

3, the audiovisual information providing apparatus 300 through the electrical stimulation includes a sensor sensing unit 310, an electrode pad 320, a signal applying unit 330, a data storage unit 340, And a processing unit 350.

The sensor sensing unit 310 acquires three-dimensional stereoscopic information about the shape and distance of the surrounding object using the sensor. Here, the sensor may include at least one of a depth sensor and an array camera.

That is, the sensor sensing unit 310 can recognize the distance to the surrounding object through the depth sensor, and recognize the shape of the surrounding object through the array camera, thereby obtaining the three-dimensional stereo information.

At this time, the sensor sensing unit 310 continuously acquires the three-dimensional stereoscopic information about the shape and the distance of the surrounding object through the depth sensor and the array camera, so that the shape and distance Dimensional stereoscopic information related to the three-dimensional information can be obtained in real time.

The sensor sensing unit 310 may sense sound of the surrounding object to acquire sound information about the strength and direction of the sound. For this, the sensor sensing unit 310 may acquire the acoustic information using a mic array.

The sensor sensing unit 310 may acquire only one of the three-dimensional stereoscopic information or the sound information as basic information for selectively applying an electric signal to each of the electrode arrays of the electrode pad 320 described later Alternatively, the three-dimensional stereoscopic information and the acoustic information may all be acquired.

The electrode pad 320 may be attached to the body of the user and allow an electric signal for the three-dimensional stereoscopic information to flow through the skin of the user.

For this, the electrode pad 320 has a matrix-type electrode array structure, and may have an electrode array structure in which at least two or more electrodes are arranged in rows and columns.

The electrode array structure of the electrode pad 320 will be described in detail with reference to FIGS. 4 and 5 (bipolar matrix configuration example). The interference effect and the scanning effect in the case where the electrode pad 320 is formed of a quadrupole matrix will be described in detail with reference to FIGS. 6 and 7. FIG.

The signal application unit 330 selectively applies an electric signal to each of the electrode arrays of the electrode pad 320 based on the three-dimensional stereoscopic information. Alternatively, the signal applying unit 330 may selectively apply an electric signal to each of the electrode arrays of the electrode pad 320 based on the acoustic information. Alternatively, the signal applying unit 330 may selectively apply an electric signal to each of the electrode arrays of the electrode pad 320 based on both the three-dimensional solid-state information and the acoustic information.

For this, the signal application unit 330 may utilize the data storage unit 340 and the data processing unit 350.

The data storage unit 340 may store signal data corresponding to object shape and distance in a control table corresponding to each electrode position based on the matrix shape of the electrode pad 320.

That is, in the control table, signal data reflecting the shape and distance of the peripheral object may be stored for each electrode of the electrode pad 320 and stored.

For example, it is assumed that the sensor sensing unit 310 acquires shape information 'A' from the peripheral object, and the electrode pad 320 has an electrode array structure arranged in the form of 9 * 7 (see FIG. 2) ). In this case, the data storage unit 340 stores the signal data related to 'A' as (2,5), (3,4), (3,6), (4,4), (4,6) (5,3), (5,4), (5,5), (5,6), (5,7), (6,3), (6,7), And 8 in correspondence with the electrodes arranged in the control table.

Alternatively, the data storage unit 340 may store the signal data corresponding to the intensity and the direction of the sound in the control table so as to correspond to each electrode position based on the matrix shape of the electrode pad 320. That is, the control table may store at least one of signal data relating to an object shape and distance, and signal data relating to the strength and direction of sound.

The data processing unit 350 can extract signal data corresponding to the three-dimensional solid information from the control table.

In other words, the data processor 350 may extract signal data corresponding to the three-dimensional stereoscopic information acquired by the sensor sensing unit 310 from the signal data stored in the control table.

Alternatively, the data processing unit 350 may extract signal data corresponding to the sound information from the control table.

That is, the data processing unit 350 can extract signal data corresponding to the sound information acquired by the sensor sensing unit 310 from the signal data stored in the control table.

Accordingly, the signal applying unit 330 may selectively apply an electric signal corresponding to the extracted signal data to the corresponding electrode positions of the electrode pad 320, referring to the control table.

Here, the signal application unit 330 may select at least one electrode disposed on the electrode pad 320 through the selection unit 334.

That is, the selector 334 refers to the control table, extracts a matrix value stored corresponding to the extracted signal data, and selects one of the array electrodes in the electrode pad 320 based on the extracted matrix value. At least one electrode to which an electric signal is to be applied can be selected.

Meanwhile, the data storage unit 340 may store the signal data in the control table so as to have intensity and frequency of different voltages according to the shape and distance of the object.

That is, the signal data corresponds to the shape and the distance of the object, and the magnitude and the frequency of the voltage are different for each electrode position and can be stored in the control table.

Here, when the electric signal is applied to each of the electrode arrays of the electrode pad 320, the signal applying unit 330 may control the magnitude and the frequency of the voltage with respect to the electric signal through the control unit 332 have. That is, the control unit 332 changes the magnitude and frequency of the voltage with respect to the electric signal according to three-dimensional solid information such as shape and distance of the object, and / or acoustic information such as acoustic intensity and direction from the object So that the user can recognize the surrounding objects differently when the signal application unit 330 applies the electric signal.

For example, when the sensor sensing unit 310 obtains the distance information indicating that a finger of a person located in the vicinity is close to the front, and the electrode pad 320 is arranged in the form of 9 * 7, (See FIG. 2). 4, 4, 4, 5, 5, 2, 5, 3, and 5 of the electrode pads 320. In this case, , 4), (5,5), (6,1), (6,2), (6,3), (6,4), (6,8) ), (7, 2), (7, 8), it is possible to control the magnitude of the voltage to be large and the magnitude of the frequency to be large.

4 and 5 are diagrams for explaining an electrode pad having an array structure in which two electrodes are arranged in an embodiment of the present invention.

Referring to FIG. 4, the electrode pad 320 may have an electrode array structure in which electrodes are arranged in the form of 20 * 12.

That is, the electrode pad 320 may have a matrix shape in which two different types of electrodes (the first electrode 410 and the second electrode 420) are disposed on the X axis and the Y axis, respectively.

The first electrode 410 may be arranged to correspond to each column in the X axis direction of the electrode pad 320 and the second electrode 420 may be disposed in the Y axis direction of the electrode pad 320 And may be arranged as one connected electrode for each row.

According to an embodiment of the present invention, a simple circuit can be constructed. By attaching the electrode pad 320 having the above-described electrode array structure to the user's body, electric stimulation is applied to a narrow area of the body .

5, the electrode pad 320 has an electrode array structure in which two different types of electrodes are arranged in the form of 20 * 12, as in FIG. 4, May be arranged in a matrix form in which they are arranged in combination.

In this case, the first electrodes 510 may be arranged corresponding to each column in the X-axis direction of the electrode pads 320, and the second electrodes 520 may be arranged corresponding to each row in the Y- .

According to an embodiment of the present invention, a complicated circuit can be constructed. By attaching the electrode pad 320 having the above-described electrode array structure to the user's body, electric stimulation It can be precisely transmitted.

6 is a view for explaining an interference phenomenon occurring through each electrode when an electrode pad having an array structure in which four electrodes are arranged is used in an embodiment of the present invention, FIG. 3 is a diagram illustrating a scanning effect in the case of using an electrode pad having an array structure in which four electrodes are arranged. FIG.

6, two different types of electrodes are connected to the electrode pad 320 by one circuit to form a total of two circuits (a first circuit (Circuit 1) and a second circuit (Circuit 2 )).

At this time, it is possible to energize two unmodulated alternating currents in the first and second circuits (Circuit1 and Circuit2), respectively, and the two alternating currents may cross each other in the circuit to cause an interference phenomenon.

Here, the modulation depth modulated by crossing the two alternating currents varies depending on the direction of the current, and may vary from 0% to 100% at the minimum.

6, when the amplitudes of the same magnitude are energized at 90 degrees in the first and second circuits (Circuit1 and Circuit2), the maximum amplitude is at 45 degrees which is an intermediate point between the two circuits Lt; / RTI >

7, when the electrode pad 320 has an electrode array structure in which four electrodes are disposed, the first and second circuits (not shown) connected to two different ones of the four electrodes Circuit 1, Circuit 2) can be obtained.

That is, the intensity of the current flowing through the second circuit (Circuit 2) is fixed and the intensity of the current flowing through the first circuit (Circuit 1) can be changed within a certain range.

For example, the intensity of the current flowing in the second circuit (Circuit2) is automatically adjusted to 75% of the maximum current intensity, and the intensity of the current flowing in the first circuit (Circuit1) varies within the range of 50 to 100% Lt; / RTI >

When the user applies electric stimulation to the user with the interference current generated by the static interference pattern through the scanning effect of the electrode pads 320 on which the four electrodes are disposed, the electric stimulation is applied only to a small area of a certain size It can be overcome and can be used when the area where the stimulus is applied is unclear.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Modification is possible. Accordingly, the spirit of the present invention should be understood only in accordance with the following claims, and all equivalents or equivalent variations thereof are included in the scope of the present invention.

310:
320: Electrode pad
330:
332:
334:
340: Data storage unit
350:
410, 510: first electrode
420, 520: second electrode

Claims (9)

An electrode pad attached to a user's body and having an electrode array structure in a matrix form;
A sensor sensing unit for acquiring three-dimensional stereoscopic information about a shape and a distance of a surrounding object using a sensor; And
And a signal applying unit for applying an electric signal to each of the electrode arrays of the electrode pad based on the three-dimensional stereoscopic information to provide an electric stimulus for recognizing the peripheral object to the user through an output signal of the electrode pad,
Lt; / RTI >
The signal application unit
And first and second circuits respectively connected to different electrodes included in the electrode pad,
Wherein the AC current generated from the first circuit and the AC current generated from the second circuit are cross-energized at a stimulation site to cause an interference phenomenon.
The method according to claim 1,
A data storage unit for storing signal data corresponding to object shape and distance in a control table corresponding to each electrode position based on a matrix form of the electrode pad; And
And a data processing unit for extracting signal data corresponding to the three-
Further comprising:
The signal application unit
And an electric signal corresponding to the extracted signal data is selectively applied to corresponding electrode positions of the electrode pad with reference to the control table.
3. The method of claim 2,
The data storage unit
Wherein the signal data is stored in the control table so that the signal data has intensity and frequency of different voltages according to the shape and distance of the object.
The method of claim 3,
The signal application unit
And a controller for controlling the magnitude of the voltage and frequency of the electric signal when the electric signal is applied to each of the electrode arrays of the electrode pads.
3. The method of claim 2,
The signal application unit
Extracting a matrix value corresponding to the extracted signal data with reference to the control table and selecting at least one electrode among the array electrodes within the electrode pad to apply the electrical signal based on the extracted matrix value Selection unit
Wherein the audiovisual information providing apparatus comprises:
The method according to claim 1,
The electrode pad
At least two or more electrodes are arranged in rows and columns,
The signal application unit
Wherein the first and second circuits are connected to two different ones of the four electrodes when the electrode pad has an electrode array structure in which four electrodes are arranged, Wherein the electric signal is applied to each of the electrode arrays of the electrode pad by changing the intensity of the electric current flowing through the first circuit and the electric current flowing through the second circuit within a predetermined range by controlling the electrical stimulation A device for providing audiovisual information through the device.
The method according to claim 1,
The sensor sensing unit
Dimensional stereoscopic image using at least one of a depth sensor, an array camera, and an array camera.
The method according to claim 1,
The sensor sensing unit
Detecting sound of the surrounding object to acquire acoustic information about intensity and direction of the sound,
The signal application unit
And an electric signal is selectively applied to each of the electrode arrays of the electrode pads based on the acoustic information.
9. The method of claim 8,
A data storage unit for storing signal data corresponding to the intensity and direction of sound in a control table correspondingly to each electrode position based on the matrix form of the electrode pad; And
A data processor for extracting signal data corresponding to the sound information from the control table,
Further comprising:
The signal application unit
And an electric signal corresponding to the extracted signal data is selectively applied to corresponding electrode positions of the electrode pad with reference to the control table.
KR1020160025058A 2016-03-02 2016-03-02 Apparatus for providing audiovisual information using electrical stimulus KR101710448B1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110111563A (en) * 2010-04-05 2011-10-12 김의겸 The forehead sensory recognition system for a blind person

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110111563A (en) * 2010-04-05 2011-10-12 김의겸 The forehead sensory recognition system for a blind person

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