RU2141685C1 - Method for entering information and device which implements said method - Google Patents

Abstract

FIELD: control equipment, in particular, for entering information encoded by Braille symbols. SUBSTANCE: method involves touching sensitive element by a finger, pressing it and removing finger. In addition at least one sensitive element is located in range of at least one finger. It is fixed in position which provides precise identification of sensitive element, which is located in accessible region for end phalanx of finger of same arm. Two fingers of same arm are made closer. End phalanx of one arm presses sensitive element which is located on another finger. Sensitive elements which are located on base are connected to controller. EFFECT: increased functional capabilities, decreased weight and size. 25 cl, 20 dwg

Description

Technical field
The invention relates to computer technology and can be used to enter information in devices and control systems, in household appliances, as well as to expand the capabilities and boundaries of communication between people with visual and hearing impairments.

State of the art
One of the main problems when creating keyboards is to reduce the morbidity that occurs due to overstrain of muscles and ligaments of the hands, forearms and shoulders. So, in the USA, 185,000 workers and employees per year break down for this reason ("Technique-Youth" N 6/1994).

Work with the standard keyboard is carried out as follows - the nerve impulse produced by the human brain at the touch of a key is worked out in the following sequence:
transferring the hand from the starting position to the area achievable for the corresponding finger,
keystroke
return of the hand to its original state.

 Due to the fact that the hands basically cannot be closer to the keys (there are simply not enough fingers), useful work (pressing a key) is always accompanied by a transfer of hands to the corresponding keys, which takes time. In connection with the foregoing, the task of reducing the "idle" action is relevant.

 A device for creating a binary code is known, containing ten switches (2 groups of 5 pieces), designed for both hands of the operator, each switch can be in a neutral or depressed state. The operator removes his fingers and the signal is transmitted, as a result of which the equipment receives it and executes commands (US Patent No. 4,586,903 with priority dated January 3, 1985, class 434-114).

 The ergonomic keyboard of the handset is also known (US Patent N 5332322 with a priority of 01/11/1993, class 400-489). The keys are pressed with the thumb, and the buttons are located in the access field of the terminal phalanx of the thumb.

 It is also known an information input device containing multi-function keys, which, depending on the press, can transmit up to 5 different characters (US Patent N 5528235 with priority dated September 3, 1991, class 341-22).

 Also known are devices for blind people to read information using a matrix containing elements that, when advancing from the matrix, form a Braille (US Patent N 4836784 with priority dated June 6, 1989, class 434-113, US Patent N 5580251 with priority from 1 August 1995, class 434-113).

 There is also known a device for transmitting and receiving information via the Braille system, which includes a keyboard and an information matrix with six cells, in which thermal information elements are installed that reproduce Braille badges read by tactile-deaf-mute people (Russian Patent No. 2025785, with a priority of 04/20/92 , class G 09 B 21/004).

 There is also known a method of transmitting information by means of an electromechanical Braille element (Application of Germany N 3314645, class G 09 B 21/02). The element has a reading surface containing a group of holes in which pins are located, raised above the reading surface, so that they can be felt by the fingers of the reader, which are Braille symbols. Raised pins are subjected to additional vibration, which increases the information content of the system.

 Closest to the claimed technical solution is a method and device for entering information (US Patent 5571020 with priority dated September 28, 1993, class 434-233), which is 2 gloves with keys located on the phalanges, lateral surface and the ends of the phalanges of the fingers of the left and right hand.

 According to the method, the finger is brought closer to the tactile element, pressed on it and then returned to its original state.

The disadvantages of the known devices are:
inconvenience in work (low ergonomics);
large mass and dimensions;
the inability to work at various positions of the body;
inconvenience or impossibility of work of people with physical disabilities (deaf-blind, one-armed, blind, etc.).

 You can also add that standard keyboards are intended for use in stationary conditions.

Disclosure of Invention
The aim of the invention is to expand the functionality, expand the scope, increase ergonomics, reduce weight and dimensions, as well as the possibility of use for people with physical disabilities. It is also possible to increase the amount of information transmitted per unit time.

 This goal is achieved by the fact that in the method of entering information in which the finger is brought closer to the tactile element, click on it and return the finger to its original state, at least one tactile element is placed using a base, for example, flexible or elastic, at least , on one phalanx of the finger of at least one finger, fix them in a position that ensures accurate identification of the tactile element and located in the access field of the terminal phalanx of the finger of the same hand, bring two fingers of one hand together dissolved and the terminal phalanx of a finger is pressed on the tactile element other.

 This goal is also achieved by the fact that the tactile element is touched by the terminal phalanx of one finger, identified and then pressed.

 This goal is also achieved by the fact that the tactile element is placed above the protrusion adjacent to the surface of the finger. This goal is also achieved by the fact that on the terminal phalanx of the finger have a conductive pad.

 This goal is also achieved by the fact that tactile elements are arranged in the form of a standard set of keys of a typewriter.

 This goal is also achieved by the fact that one contact is placed on the terminal phalanx of the finger, and the second contact is placed on the base and, by touching two fingers, close the contacts.

 This goal is also achieved by the fact that the end phalanx of one finger presses the tactile element and closes its contacts.

 This goal is also achieved by the fact that tactile elements are positioned on the base in the form of an information matrix reproducing symbols, and provide signals to the corresponding tactile elements that excite skin receptors on the surface of the fingers adjacent to the corresponding tactile element, and thus read information .

 This goal is also achieved by the fact that the tactile elements are arranged on the base in the form of an information matrix that reproduces Braille badges, signals are sent to the corresponding tactile elements that excite skin receptors on the surface of the fingers adjacent to the corresponding tactile element, and thus read information .

 Achieving this goal is achieved by the fact that in the information input device containing tactile elements placed on the base and connected to the controller, at least one tactile element is placed and fixed on at least one phalanx of at least one finger by the base, for example, flexible or elastic, and the tactile element is located in the access field of the terminal phalanx of the finger of the same hand.

 This goal is also achieved by the fact that the tactile element is made in the form of two surfaces with electrically conductive contacts, and one surface is made in the form of a hollow tubercle of an elastic material, such as rubber, on the inner surface of which an electrically conductive contact is located.

 This goal is also achieved by the fact that at least one tactile element is provided with a protrusion facing the skin of the finger.

 This goal is also achieved by the fact that the tactile element contains a button and two contacts in the form of surfaces with an electrically conductive coating, between which there is a plate with a hole, and the button is attached to one surface that is made elastic.

 This goal is also achieved by the fact that tactile elements are placed on both hands.

 This goal is also achieved by the fact that tactile elements are placed on the hands of different people.

 This goal is also achieved by the fact that the tactile element contains two contacts, both contacts made protruding above the surface of the base.

 This goal is also achieved by the fact that the tactile element contains two contacts, with the first contact located on the base, and the second contact located on the terminal phalanx of the other finger and both contacts are connected to the controller via conductors.

 This goal is also achieved by the fact that the controller is placed in a housing connected to a bracelet worn mainly above the wrist joint of the hand.

 This goal is also achieved by the fact that the tactile elements are arranged in the order of a standard typewriter keyboard.

 This goal is also achieved by the fact that the base is flexible.

 This goal is also achieved by the fact that the base is made elastic.

 This goal is also achieved by the fact that the base is made transparent.

 This goal is also achieved by the fact that the base is made in the form of fingertips, in which three phalanges of the finger are placed.

 This goal is also achieved by the fact that the base is made in the form of a glove.

 This goal is also achieved by the fact that the base is made mesh, in the part of the nodes of which there are tactile elements.

 This goal is also achieved by the fact that the base is made in the form of a glove having fingertips for the little finger, ring finger, middle and index finger.

 This goal is also achieved by the fact that on the base there is an information board associated with at least one tactile element.

 This goal is also achieved by the fact that the base is made in the form of a tape, at both ends of which there are latches, as well as at least one tactile element located between the latches.

 This goal is also achieved by the fact that the base contains a plate, on one side of which at least one tactile element is located, and on the other a soft gasket, and two tapes are fastened to the plate, the clamps are located at their free ends.

 This goal is also achieved by the fact that to the lateral surfaces of the fingertips fastening elements are attached, for example, two tapes with clamps.

 This goal is also achieved by the fact that the tactile elements are arranged in the form of an informational Braille matrix and contain tactile sensitivity sensors, for example, excitation windings of electromagnetic vibrators facing the skin of the fingers.

Brief Description of the Drawings
The method and device are illustrated by drawings, where in FIG. 1 shows a general view of the device, FIG. 2 shows a connection diagram of a device with a controller and with output devices, FIG. 3-8 give possible schemes for performing a tactile element, in FIG. 9 shows a possible arrangement of tactile elements on the base, in FIG. 10-11 show embodiments of the base; FIG. 12-13 illustrate possible communication lines between the elements of the device, in FIG. 14 shows a variant of the device with a bulletin board, in FIG. 15 shows embodiments and fixations of the device, FIG. 16 shows the fixation of the device on the phalanx of the finger; FIG. 17-18 show embodiments of a device adapted for people with physical disabilities, in FIG. 19-20 give options for connecting tactile elements to the controller.

 The information input device contains at least one tactile element 1 (Fig. 1), placed on the base 2, made, for example, elastic, and connected to the controller 3 using the communication line 4. The controller 3 is placed in the case connected to the bracelet 5, wearable mainly above the wrist of the arm. The location of the tactile element 1 allows the end phalanx of one finger to interact with the tactile element 1 of the other finger of one hand (in Fig. 1, the interaction is between the tactile element 1 located on the end phalanx of the index finger and the thumb pad of the left hand). The controller 3 is connected, for example, via a communication line 6 with the output device (conversion) of information 7 (Fig. 2).

 The base 2 can be made flexible, for example, from plastic or elastic, for example, from latex. Also, the base 2 can be made transparent, for example, of transparent plastic. The device can be located on one or two hands of a person or on the hands of different people.

 The tactile element 1 (Fig. 3) is made in the form of two surfaces 8 and 9 with electrically conductive contacts 10 and 11, and the surface 9 is made in the form of a tubercle (protrusion) of an elastic material, such as rubber, on the inner surface of which an electrically conductive contact 11. Tactile the element 1 is connected to the controller 3 by means of a communication line consisting, for example, of conductors 12 and 13. The tactile element 1 is provided with a protrusion 14 facing the skin of the finger and touching it. As the protrusion 14, a blunt cone, a pyramid or the like, made, for example, of rigid material can be used. Surfaces 8 and 9 are bonded to base 2, for example, with glue. The base 2 can serve as one surface (Fig. 4).

 The tactile element 1 also contains a button 15 (Fig. 5) and two surfaces 16, 17 with electrically conductive coatings 18 and 19, between which a plate 20 with an aperture is placed, the button 15 being attached to the surface 16, which is made elastic. The surface 17 is bonded to the base 2.

 The tactile element 1 also contains a button 15 (Fig. 6), which is fastened to a rod consisting of two parts 21 and 22, and the part 22 is made of magnetic material and has a stop 23, and a spring 24 is placed between the stop 23 and the base 2, and the rod itself is located in the solenoid 25, which is connected with the base 2.

 The tactile element also contains two contacts 26 and 27 (Fig. 7), both of which are protruding above the surface of the base 2 and connected to the controller 3 by conductors 12 and 13.

 The tactile element also contains two contacts 28 and 29 (Fig. 8), and the contact 28 is located on the base 2 and connected to the controller 3 by a conductor 13, and the second contact 29 is located on the end phalanx of the other finger using a bracelet 30 and connected to the controller 3 by conductor 12.

 Tactile elements are placed on the base 2 (Fig. 9) in the order (form) of the standard typewriter keyboard (Latin alphabet), which consists of alphabetic tactile elements 31, digital tactile elements 32), special keys 33 and cursor keys 34. Connection of tactile elements with the controller in the drawing is not shown and indicated by numbers only one tactile element of each type.

 The base 2 can be made in the form of fingertips (Fig. 10), in which there are three phalanges of the finger (main, middle and final). Cuts can be made at the places where the phalanges of the fingers are bent, and fingertips can be cut off at the ends of the fingers. The base 2 can also be made in the form of a glove (Fig. 11). The communication line from the tactile elements 1 to the controller 3 is located on the inner surface of the glove.

 The base 2 can also be made mesh, in the part of the nodes of which there are tactile elements 1 (not shown in the drawing).

 The base 2 can also be made in the form of a glove having fingertips for the little finger, ring finger, middle and index finger (not shown in the drawing).

 The tactile element 1 (Fig. 12) is connected to the controller 3 using the communication line 6, and the controller 3 is connected to the output device (conversion) of information 7 using radio signals. For the transmission of radio signals, a transmitter is connected to the controller 3 (not shown in the drawing) and a receiver (not shown in the drawing) located in the information output (conversion) device 7.

 The signal from the tactile elements 1 to the output device (conversion) of information 7 can also follow using signals without wires, for example in the radio or infrared ranges. For this, based on 2 (Fig. 13), a transmitter 35 is placed, and a receiver (not shown in the drawing) is located in the information output (conversion) device 7. An intermediate signal amplifier 36 can also be used.

 On the basis of 2 can be placed information board 37 (Fig. 14) associated with the tactile elements 1. In this case, the controller and the information output device are located on the basis of 2.

 The base 2 can be made in the form of a tape 38 (Fig. 15), at both ends of which are the latches 39 and 40, for example, in the form of adhesive tape, as well as at least one tactile element 1, located between the latches 39 and 40. Tactile element 1 is connected to the controller 3 using conductors 12 and 13.

 The base may also contain a plate 41, on one side of which at least one tactile element 1 is located, and on the other side there is a soft pad 42, and two tapes 43 and 44 are fastened to the plate 41, on the free ends of which there are latches 39 and 40.

 Tightening elements, for example, two rubber bands 45, 46, with clips 47 and 48, can be attached to the lateral surfaces of the base 2 (FIG. 16).

 The tactile elements 49 and 50 (FIG. 17) (the tactile element 49 is shown in the “standby” state, and the tactile element 50 in the working state) can be located on four fingers in the form of two Braille information matrices, each element of the Braille matrix is located on one phalanx of the finger. Tactile elements 49 and 50 contain tactile sensitivity sensors, for example, field windings of electromagnetic vibrators facing the skin of the fingers. Signals are transmitted to the tactile elements via a communication line (not indicated in the drawing) from a controller 3, which converts the information into Braille codes. Information comes to the controller 3 from information input (transmission) devices (not shown in the drawing), for example, a computer, etc.

 Tactile elements 51 (Fig. 18) can be located on the same phalanx of the finger in the form of an informational Braille matrix and contain tactile sensitivity sensors, for example, excitation windings of electromagnetic vibrators facing the skin of the fingers. Signals are transmitted to the tactile elements via the communication line 52 from the controller 3, which converts the information into Braille codes.

 The electrical connection consists, for example, of six tactile elements 53, 54, 55, 56, 57, 58 (Fig. 19) connected to the controller 3 via a common wire 59 and wires 60, 61, 62, 63, 64, 65.

 The electrical connection consists, for example, of six tactile elements 66, 67, 68, 69, 70, 71 (Fig. 20) made in the form of switches, and their connection with the controller 3 includes a wire 72 and a wire 73, each switch contains resistors (not indicated by numbers in the drawing) with different resistances R1, R2, R3, R4, R5, R6 installed in series.

Embodiments of the invention
The method of entering information can be implemented as follows. After the arrival of a nerve impulse from the brain, the terminal phalanx of the finger is approached to the tactile element 1 (Fig. 1), which is placed with the base 2 (flexible or elastic) on the phalanx of the finger, fix it in a position that ensures accurate identification of the tactile element 1 and located in the access field of the terminal phalanx of the finger of the same hand, two fingers of one hand are brought together and the tactile element 1 is pressed with the terminal phalanx of the finger, which is located on the phalanx of the other finger of the same hand. When you press the key with your finger, a discrete signal is generated, which is transmitted to the controller 3 via the communication line 4, converted, and then to the information output (transmission) device (computer, scoreboard, audio-video equipment, mechanisms, modem, sound synthesizer, via communication line 6) etc.) (Fig. 1, 2). Structurally, the controller 3 can be performed separately, but can also be integrated into the information output (transmission) device 7. The tactile element 1 (Fig. 15) is placed on the phalanx of the finger by means of a base made in the form of tape 38. The tape 38 is wrapped around the phalanx of the finger and fixed with clamps 39 and 40, and the tactile element 1 is placed on the fingertip. Tactile elements 1 can be located in the form of a standard typewriter keyboard (Fig. 9).

 The electrical connection may function as follows (FIG. 20). When the tactile element button 66 is pressed, the electric circuit is closed and the signal through the wire 73 is sent to the controller 3. The signal size depends on which switch was closed (switches 66, 67, 68, 69, 70, 71 have different electrical resistances). The controller 3 converts the information and transfers it to the information output device 7.

 The method can also be implemented in that in order to more accurately identify the first phalange of one finger, they touch the surface 9 (Fig. 3), identify the tactile element and then press the surface 9, while the contacts 10 and 11 are closed and the signal is sent to the controller 3 using conductors 12 and 13.

 The method can also be implemented by the fact that the end phalanx of the finger of the hand is brought closer to the tactile element 1 (Fig. 10) and the contact 29 (Fig. 6), which is located on the phalanx of the finger, touch the contact 28 located on the base 2, while the contacts 28 and 29 are closed and the signal goes to controller 3.

 The method can also be implemented by the fact that the end phalanx of the finger is brought closer to the tactile element 1 (Fig. 1) and the contacts 26 and 27 are closed (Fig. 7), while the signal is supplied to the controller 3. The current flows between the contacts 26 and 27 through skin of the finger of the hand. The terminal phalanx of the finger may be provided with a conductive pad, for example, of copper.

 The method can also be implemented by the fact that they enter information (Fig. 18) in the form of Braille symbols. A signal is transmitted from the controller 3 to the tactile elements 51 using the communication line 52, while a current begins to flow in the windings of the solenoid 25 (Fig. 6), a magnetic force appears, the rod moves downward and puts pressure on the surface of the finger. From finger receptors, the signal enters the human brain, where it is recognized and identified. During the operation of entering information with the end phalanx of the finger, press the button 15, the rod goes down and part of the rod 22 falls between the windings of the solenoid 25, in which electromagnetic induction is induced, and then the signal is transmitted through the communication line to the controller 3 and then to the information output (conversion) device .

 The signal from the tactile elements 1 (Fig. 2) to the controller 3 and from the controller 3 to the information output (conversion) device 7 can be transmitted both using wires and without wires, for example, using radio signals (Fig. 12, 13) .

 "Tactile elements" refers to electrical, electromechanical and touch switches, the action of which is based on the touch of the phalanx (pillow) of the fingers. Also, tactile elements include contacts that are on two fingers of one hand and, when touched with a finger, close the circuit. Tactile elements can contain a set of standard typewriter keys, numeric keys, control keys, function keys, cursor keys, Braille keys, and one tactile element can be multifunctional, for example, combine four cursor keys (Japanese Patent No. 09016302 A, class G 06 F 3/02, with priority of June 27, 1995). Tactile elements are also understood to be elements that excite skin receptors on parts of the surfaces of the fingers adjacent to the corresponding tactile element.

 Under the "base" refers to a flexible or elastic base (for example, made of rubber), which, depending on the implementation of the technical solution, has a different design - fingertips for one phalanx, fingertips for three phalanges of one finger, gloves, etc. Depending on the size of the hand base can be individually selected for a particular hand.

 By "controller" is meant a specialized processor that implements data transfer means and controls I / O operations.

 By “pressing the terminal phalanx of the finger” is meant the pressing of soft tissues of the phalanx, for example, a fingertip.

 A “communication line" refers to one or more wires, as well as radio or infrared signals.

 The keyboard may contain either a standard typewriter key set or additional keys. A standard typewriter keyboard is understood, for example, as a QWERTY keyboard (V. Illingourt. Explanatory Dictionary of Computing Systems. M .: Mechanical Engineering, 1991, pp. 252-253), and also, if necessary, additional keys (control keys, function keys, cursor keys, etc.).

Industrial applicability
When analyzing the invention for compliance with the criterion of "novelty" it was revealed that part of the features of the claimed combination is new, therefore, the invention meets the criterion of "novelty."

 When analyzing the invention for compliance with the criterion of "inventive step", it was found that the technical solution of the analyzed object is new, therefore, the features meet the criterion of "inventive step", since it represents a new set of features, as a combination of known features and a new technical property, and also represents The new location, number and relationship of items. In addition, through the proposed method and device, a result is achieved that satisfies long-standing needs (accelerating the input of information, increasing ergonomics of work and expanding the capabilities and boundaries of communication between people with visual and hearing impairments).

 The invention can be used in computer technology, can be replicated and, therefore, meets the criterion of "industrial applicability".

The advantages of the proposed method and device for inputting information:
light weight and dimensions;
ease of use;
adaptability;
the possibility of use for people with physical disabilities;
in a variety of poses you can work (ergonomics);
reduction in the amplitude of movement of the fingers, as a result of which the time for pressing the key is reduced, because both fingers and move in a coordinated way towards each other.

 The application of the invention expands the possibility of communication between people with physical disabilities (blind, deaf, dumb) and allows for informational contact with them and them among themselves, and to ensure their social rehabilitation.

Claims (25)

 1. The method of entering information in which the finger is brought closer to the tactile element, click on it and return the finger to its original state, characterized in that at least one tactile element is placed using a base, for example flexible or elastic, on at least one the phalange of at least one finger, fix it in a position that provides accurate identification of the tactile element, which is located in the access field of the terminal phalanx of the finger of the same hand, two fingers of one hand bring together and the terminal phalanx one finger presses the tactile element of the other.  2. The method according to claim 1, characterized in that the tactile element is identified by the terminal phalanx of one finger, identified and then pressed.  3. The method according to claim 1, characterized in that the tactile element is placed above the protrusion adjacent to the surface of the finger.  4. The method according to claim 1, characterized in that a conductive patch is placed on the terminal phalanx of the finger.  5. The method according to claim 1, characterized in that the tactile elements are arranged in the form of keys of a typewriter.  6. The method according to claim 1, characterized in that one contact is placed on the terminal phalanx of the finger, and the second contact is placed on the base and the contacts are closed by touching two fingers.  7. The method according to claim 1, characterized in that the end phalanx of one finger presses the tactile element and closes its contacts.  8. The method according to claim 1, characterized in that the tactile elements are arranged on the base in the form of an information matrix reproducing symbols, and provide signals to the corresponding tactile elements, which excite skin receptors on the surface of the fingers adjacent to the corresponding tactile element, and thus read the information.  9. The method according to claim 1, characterized in that the tactile elements are positioned on the base in the form of an information matrix reproducing Braille badges, and send signals to the corresponding tactile elements that excite skin receptors on the surface of the fingers adjacent to the corresponding tactile element , and thus read the information.  10. A device for inputting information containing tactile elements placed on the base and connected to the controller, characterized in that at least one tactile element is placed and fixed on at least one phalanx of at least one finger through the base, for example flexible or elastic moreover, the tactile element is located in the access field of the terminal phalanx of the finger of the same hand.  11. The device according to claim 10, characterized in that the tactile element is made in the form of two surfaces with electrically conductive contacts, and one surface is made in the form of a hollow tubercle of an elastic material, such as rubber, on the inner surface of which an electrically conductive contact is located.  12. The device according to p. 10, characterized in that at least one tactile element is provided with a protrusion facing the skin of the finger.  13. The device according to claim 10, characterized in that the tactile element contains a button and two contacts in the form of surfaces with an electrically conductive coating, between which there is a plate with a hole, and one button is attached to one surface that is elastic.  14. The device according to claim 10, characterized in that the tactile elements are placed on the hands of different people.  15. The device according to claim 10, characterized in that the tactile element contains two contacts, both contacts made protruding above the surface of the base.  16. The device according to claim 10, characterized in that the tactile element contains two contacts, the first contact being located on the base, and the second contact being located on the terminal phalanx of the other finger and both contacts are connected to the controller via conductors.  17. The device according to claim 10, characterized in that the tactile elements are placed in the form of a typewriter keyboard.  18. The device according to claim 10, characterized in that the base is made in the form of fingertips, in which there are three phalanges of the finger.  19. The device according to claim 10, characterized in that the base is made in the form of a glove.  20. The device according to claim 10, characterized in that the base is mesh, in the part of the nodes of which are tactile elements.  21. The device according to p. 10, characterized in that on the base there is an information board associated with at least one tactile element.  22. The device according to claim 10, characterized in that the base is made in the form of a tape, at both ends of which there are latches, as well as at least one tactile element located between the latches.  23. The device according to claim 10, characterized in that the base contains a plate, on one side of which at least one tactile element is located, and on the other side is a soft gasket, with two tapes fastened to the plate, on the free ends of which there are latches.  24. The device according to claim 10, characterized in that tightening elements are attached to the lateral surfaces of the fingertips, for example, two tapes with clamps.  25. The device according to claim 10, characterized in that the tactile elements are arranged in the form of an informational Braille matrix and contain tactile sensitivity sensors, for example, excitation windings of electromagnetic vibrators facing the skin of the fingers.

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