DE102022202226A1 - Signage device for tactile indication of a direction to an input area, display device for a vehicle, method for operating a signage device and method for producing a signage device - Google Patents

Abstract

The approach presented here relates to a signage device (110) for tactilely indicating a direction to an input area, the signage device (110) having a sound barrier (200) with at least one double gap (205) having a first opening (210) and one adjacent to the first opening (210) arranged second opening (215) and which is adapted to diffract sound waves (220) and to cause interference of the diffracted sound waves (220). In addition, the signaling device (110) has a resonance chamber (235) arranged adjacent to the sound barrier (200), which is designed to amplify interfered sound waves (220) by a natural oscillation (240) in order to provide a vibration, and a flexible functional element (260), wherein the sound barrier (200) and the functional element (260) are arranged on opposite sides. The functional element (260) is arranged adjacent to the resonance chamber (235) and is configured to point the direction to the input area (115) using the vibration.

Description

State of the art

The approach is based on a signage device for tactile indication of a direction to an input area, a display device for a vehicle, a method for operating a signage device and a method for producing a signage device according to the species of the independent claims. The subject of the present approach is also a computer program.

The U.S. 8,816,977 B2 describes an electronic device having a flexible display surface with a matrix of display pixels and internal components arranged below the display surface, such as a speaker, an actuator deforming the display surface, or a pressure sensor.

Disclosure of Invention

Against this background, with the approach presented here, an improved signage device for tactilely indicating a direction to an input area, an improved display device for a vehicle, an improved method for operating a signage device and an improved method for producing a signage device, furthermore a device that Method used, and finally presented a corresponding computer program according to the main claims.

Advantageous developments and improvements of the device specified in the independent claim are possible as a result of the measures listed in the dependent claims.

The approach presented creates a possibility, for example, of increasing comfort and traffic safety, for example by reducing driver distraction. Furthermore, it is easier for the driver to find and operate vehicle functions, so that he does not have to take his eyes off the traffic. Furthermore, the approach presented can also be used for vehicles that have, for example, extensive, curved displays that extend, for example, across the width of the cockpit. The approach presented here also enables a number of components to be reduced, so that in turn the assembly effort is reduced. Furthermore, robustness is improved by the presented approach. Overall, the approach presented here enables improved energy efficiency, reduced use of raw materials and simplified manufacturing and/or recycling processes. A susceptibility to errors can also be reduced, since advantageously a number of electrical connections can be reduced.

A signage device for tactilely indicating a direction to an input area is presented, wherein the signage device has a sound barrier with at least one double gap, which has a first opening and a second opening arranged adjacent to the first opening. The double slit is designed to diffract sound waves and to cause interference of the diffracted sound waves. Furthermore, the signage device has a resonance chamber arranged adjacent to the sound barrier, which is designed to amplify interfered sound waves by natural oscillation to provide vibration, and a flexible functional element, wherein the sound barrier and the functional element are arranged on opposite sides. The functional element is arranged adjacent to the resonance chamber and is configured to point the direction to the input area using the vibration.

The signposting device can be formed, for example, as part of a display device, such as a touch-sensitive display, which is implemented, for example, in a vehicle. The vehicle can be shaped as a passenger car, for example. The sound barrier can, for example, be implemented as a layered layer. The openings can also be implemented as through-openings or bores. The effect of the double gap is that the sound waves are disturbed in their flow, so that they interfere with one another and, for example, can form wave nodes that add up and cancel each other out. The resonance chamber can be formed, for example, as a hollow space that can be made to oscillate naturally, thereby triggering the vibration. The vibration can be perceived by a user as a tactile stimulus, for example, in waves on the functional element. For example, the vibration can be described as successive crests and troughs. The functional element can be shaped, for example, in order to also give tactile feedback to the user. Furthermore, for example, a hand of the user can be guided to a target point, for example to the input area. Advantageously, it is not necessary for the user to look at the signposting device, so that he can continue to keep an eye on the road traffic, for example. As a result, a risk of being distracted can advantageously be reduced and traffic safety can be increased.

According to one embodiment, the signaling device can have a carrier medium for conducting the sound waves from the double gap to the resonance chamber, in particular with the carrier medium being designed for filtering sound waves. The carrier medium can be formed, for example, as an information carrier or as a carrier substrate. The carrier medium can, for example, be gaseous, gel-like or formed as a solid body, which can be arranged between the functional element and the sound barrier.

The functional element can be formed as a display foil of a display device. Advantageously, the functional element can be designed to be flexible, so that it can be arranged, for example, on a surface of the vehicle with large dimensions, for example in the area of a passenger airbag.

The guidance device can have an actuator for providing sound waves in the direction of the sound barrier. The actuator can be implemented, for example, as an internal component that can be arranged on a side of the sound barrier that is opposite the functional element. A number of components can advantageously be reduced by using the actuator and the sound waves, since, for example, no electrical lines are required between the actuator and the functional element. Manufacturing costs can also be reduced as a result.

According to one embodiment, a shape and additionally or alternatively a dimension of the openings of the double gap can differ. Advantageously, the openings can be shaped to allow the sound waves to pass through at different positions. The openings can, for example, lead to the sound waves being disturbed in their course and thus being able to interfere with one another. The sound waves can also have different frequencies, for example. Due to the dimensions of the openings, the sound waves can form different interference patterns, for example.

Furthermore, the signaling device can have at least one further resonance chamber which is laterally offset from the resonance chamber and which can be designed in order to be able to amplify interfered sound waves through natural oscillations of the further resonance chamber in order to be able to generate further vibrations. In particular, the resonance chamber and the further resonance chamber can be designed to output the vibrations and the further vibrations in waves in order to show the way. The resonance chambers can be implemented, for example, as cavities that can be egg-shaped or oval in shape. Alternatively, the resonance chambers can be implemented as angular and border on a side of the medium opposite the double slit. A user can advantageously perceive a tactile stimulus through the natural vibration of the resonance chambers, which stimulus represents a waveform, for example. As a result, the user or, for example, a hand of the user can be guided to the input area without the user having to look at the signposting device, so that road safety can advantageously be improved. Analogously to the resonance chamber and the further resonance chamber, the deflection device can have a plurality of resonance chambers.

The sound barrier can have at least one further double slit which is laterally offset from the double slit and which can have a further first opening and a further second opening arranged adjacent to the further first opening. The further double slit can be designed in order to be able to diffract sound waves and to be able to bring about an interference of the diffracted sound waves. The further double gap can be shaped like the double gap, for example, so that the further openings can be implemented as through openings, for example. The openings can be punched or drilled, for example. Advantageously, the guidance device can output the tactile stimulus to the user over a large area, so that the user can find the input area.

According to one embodiment, the resonance chamber can be spanned, enclosed and additionally or alternatively surrounded by a membrane, which can be shaped in particular as a functional film. Advantageously, the membrane can be made to vibrate and thereby cause the resonance chamber to vibrate naturally using the sound waves acting on the resonance chamber. Advantageously, the sound waves can be amplified in this way, so that the user can perceive wave crests as vibrations, for example.

Furthermore, a display device for a vehicle is presented, which can have a display area for displaying an image and additionally or alternatively an input area for entering data, as well as a signage device in an aforementioned variant.

The display device can be in the form of a touch-sensitive display, for example, which can be arranged flat on a surface of an interior of the vehicle, for example can. The display device can also be realized in a curved manner, for example, and can therefore be arranged, for example, in the area of a dashboard or adjacent thereto. The display device can advantageously be designed to display user-specific and additionally or alternatively vehicle-specific information using the signposting device or to select or display vehicle functions, for example.

A method for operating a signage device in an aforementioned variant is also presented, which has a step of outputting sound waves in response to a detection signal, a step of generating a vibration using a natural oscillation of the resonance chamber and a step of providing the vibration to the functional element includes to indicate the direction to an input area of a display device.

The method can advantageously be controlled or carried out in such a way that sound waves with different frequencies, for example 64 Hz, 96 Hz, 128 Hz and 256 Hz, can be output in order to generate the vibration. Advantageously, the vibration may represent wave motion, which may travel in opposite directions given the detection signal, which may represent a touch position of the user.

In addition, a method for producing a signage device is presented in an aforementioned variant, the method including a step of providing the carrier medium with a resonance chamber side and a sound barrier side opposite the resonance chamber side, a step of arranging at least one resonance chamber on the resonance chamber side of the carrier medium, and a further step the application or introduction of the sound barrier into the carrier medium on the sound barrier side of the carrier medium and a step of arranging the functional element on the resonance chamber side in order to produce the signage device.

This method can be implemented, for example, in software or hardware or in a mixed form of software and hardware, for example in a control unit.

The approach presented here also creates a device that is designed to carry out, control or implement the steps of a variant of a presented method in corresponding devices. The task on which the approach is based can also be solved quickly and efficiently by this embodiment variant of the approach in the form of a device.

For this purpose, the device can have at least one computing unit for processing signals or data, at least one memory unit for storing signals or data, at least one interface to a sensor or an actuator for reading in sensor signals from the sensor or for outputting data or control signals to the Have actuator and / or at least one communication interface for reading or outputting data that are embedded in a communication protocol. The arithmetic unit can be, for example, a signal processor, a microcontroller or the like, with the memory unit being able to be a flash memory, an EEPROM or a magnetic memory unit. The communication interface can be designed to read in or output data wirelessly and/or by wire, wherein a communication interface that can read in or output wire-bound data can, for example, read this data electrically or optically from a corresponding data transmission line or can output it to a corresponding data transmission line.

In the present case, a device can be understood to mean an electrical device that processes sensor signals and, depending thereon, outputs control and/or data signals. The device can have an interface that can be configured as hardware and/or software. In the case of a hardware design, the interfaces can be part of a so-called system ASIC, for example, which contains a wide variety of functions of the device. However, it is also possible for the interfaces to be separate integrated circuits or to consist at least partially of discrete components. In the case of a software design, the interfaces can be software modules which are present, for example, on a microcontroller alongside other software modules.

A computer program product or computer program with program code, which can be stored on a machine-readable carrier or storage medium such as a semiconductor memory, a hard disk memory or an optical memory and for carrying out, implementing and/or controlling the steps of the method according to one of the embodiments described above, is also advantageous used, especially when the program product or program is run on a computer or device.

• 1 eine schematische Darstellung eines Fahrzeugs mit einer Anzeigeeinrichtung gemäß einem Ausführungsbeispiel;
• 2 eine schematische Darstellung einer Wegweisungsvorrichtung gemäß einem Ausführungsbeispiel;
• 3 eine schematische Darstellung eines Ausführungsbeispiels einer Wegweisungsvorrichtung;
• 4 eine schematische Darstellung eines Ausführungsbeispiels einer Wegweisungsvorrichtung;
• 5 eine schematische Darstellung eines Ausführungsbeispiels einer Wegweisungsvorrichtung;
• 6 eine schematische Darstellung eines Ausführungsbeispiels einer Wegweisungsvorrichtung;
• 7 eine schematische Darstellung unterschiedlicher Ausprägungen für eine Wegweisungsvorrichtung gemäß einem Ausführungsbeispiel;
• 8 ein Ablaufdiagramm eines Verfahrens gemäß einem Ausführungsbeispiel zum Betreiben einer Wegweisungsvorrichtung;
• 9 ein Blockschaltbild einer Vorrichtung gemäß einem Ausführungsbeispiel;
• 10 ein Ablaufdiagramm eines Verfahrens gemäß einem Ausführungsbeispiel zum Herstellen einer Wegweisungsvorrichtung; und
• 11 ein Blockschaltbild einer Vorrichtung gemäß einem Ausführungsbeispiel.

Exemplary embodiments of the approach presented here are shown in the drawings and explained in more detail in the following description. It shows:

• 1 a schematic representation of a vehicle with a display device according to an embodiment;
• 2 a schematic representation of a routing device according to an embodiment;
• 3 a schematic representation of an embodiment of a routing device;
• 4 a schematic representation of an embodiment of a routing device;
• 5 a schematic representation of an embodiment of a routing device;
• 6 a schematic representation of an embodiment of a routing device;
• 7 a schematic representation of different characteristics for a routing device according to an embodiment;
• 8th a flow chart of a method according to an embodiment for operating a routing device;
• 9 a block diagram of a device according to an embodiment;
• 10 a flowchart of a method according to an embodiment for producing a signage device; and
• 11 a block diagram of a device according to an embodiment.

In the following description of favorable exemplary embodiments of the present approach, the same or similar reference symbols are used for the elements which are shown in the various figures and have a similar effect, with a repeated description of these elements being dispensed with.

1 shows a schematic representation of a vehicle 100 with a display device 105 according to an embodiment. The vehicle 100 is formed as a passenger car (car), for example. The display device 105 is implemented or can be implemented as a touch-sensitive display, for example, which has an input area 115 and/or a display area 120 in addition to a signage device 110, as is described in at least one of the following figures. The direction device 110 is designed to tactilely show a user a direction to the input area 115 . The input area 115 is designed to input data, such as user-specific information, and/or to select vehicle functions, for example. The display area 120 is designed to display an image. In addition, according to this exemplary embodiment, vehicle 100 has a device 125 which is designed to control or carry out a method for operating signage device 110, as is also described in more detail in one of the following figures. The vehicle 100 only optionally has a sensor unit 130 which is designed to detect a touch by a user and, for example, to provide a detection signal 135 representing a touch position to the device 125 . Device 125 is also designed to control signage device 120 using a control signal 140, for example.

In other words, the approach described here implements a tactile and/or haptic function for a display.

2 shows a schematic representation of a routing device 110 according to an embodiment. The routing device 110 corresponds or is at least similar to that in 1 described routing device 110. According to this embodiment, the routing device 110 is shown in a sectional view. It is designed to show the user a direction to an input area. For this purpose, the signaling device 110 has a sound barrier 200 with at least one double gap 205 . The double gap 205 in turn has a first opening 210 and a second opening 215 arranged adjacent to the first opening 210 . The double slit 205 is designed to diffract sound waves 220 and to bring about an interference of the diffracted sound waves 220 . This means that after the sound waves 220 have passed through the double slit, the sound waves 220 are, for example, divided, that is to say bent, so that they can interfere with one another. The interference of the sound waves 220 generates wave nodes 225 that add up or constructively overlap and wave nodes 230 that cancel out or overlap destructively. The wave nodes 225 that add up or are constructively superimposed amplify vibrations generated by the sound waves 220, for example. The wave nodes 230 that cancel out or destructively overlap have the property, for example, that they cancel each other out. The According to this exemplary embodiment, the wave nodes 225 that add up are therefore shown as intersection points of the diffracted and thus amplifying sound waves 220 . The signaling device 110 has a resonance chamber 235 adjacent to the sound barrier 200, which is shaped as a plate, for example. The resonance chamber 235 is designed to amplify the interfered sound waves 220 by natural vibration 240 . This provides a vibration whose crests 245 and troughs 250 can be perceived by the user, for example. This means that the user perceives a tactile stimulus, for example using a tactile element 255. According to this exemplary embodiment, the vibration, ie the tactile stimulus, is strongest at the position directly above the resonance chamber 235. Correspondingly, the wave crest 245 is highest at this position and flattens out towards the sides.

Furthermore, the signaling device 110 has a flexible functional element 260, the sound barrier 200 and the functional element 260 being arranged on opposite sides. The functional element 260 is arranged adjacent to the resonance chamber 235 and is configured to point the direction to the input area using the vibration. The vibration takes place in waves, for example. The functional element 260 is formed, for example, as a display foil which is formed flatly as the surface of the display device. According to this exemplary embodiment, a shape and/or a dimension of the openings of the double slit 205 differs only optionally, so that the sound waves 220 pass through the double slit 205 at different positions, taking into account their frequency.

According to this exemplary embodiment, the signaling device 110 has a carrier medium 265 which is designed to guide the sound waves 220 from the double gap 205 to the resonance chamber 235, in particular the carrier medium 265 having mechanisms for filtering sound waves. The carrier medium 265 is also referred to as an information carrier or as a carrier substrate, for example, and is or can be realized, for example, in gaseous, gel-like or solid form. According to this exemplary embodiment, the functional element 260 is arranged on a resonance chamber side 267 of the carrier medium 265 and the sound barrier 200 is arranged on a sound barrier side 268 of the carrier medium 265 . Alternatively, it is conceivable that the carrier medium 265 is also implemented flexibly.

Furthermore, the signaling device 110 has a membrane 270 which spans and/or surrounds the resonance chamber 235 . In this case, the membrane 270 is formed, for example, as a functional film which is only optionally applied to the carrier medium 265 . On a side of the sound barrier 200 facing away from the functional element 260 , the signaling device 110 also optionally has an actuator for providing the sound waves 220 . The actuator is implemented or can be implemented as an internal component, for example, and is therefore not shown according to this exemplary embodiment.

In other words, the signposting device 110 can be implemented for a display device that leads, for example, across the entire width of cockpit modules in vehicles. Such displays can be implemented, for example, both wider and higher and/or longer than screens previously used for vehicles, so that using the signage device 110 the input area is easier to find using the tactile stimulus, which is implemented as a traveling wave. This dynamic, running formation is haptically detected with the tactile organ 255, such as skin, fingers or a hand of the user, which is guided in the wave direction to the target. This ensures, for example, that the driver does not have to take his eyes off the road despite the large display size. The signposting device 110 is also referred to as a tactile output device, for example, which enables selective mechanical sound wave filtering, so that the user follows a moving wave haptically or tactilely without taking his eyes off the roadway. Only optionally does the signposting device 110 have a cover plate which, for example, outputs the tactile stimulus in conjunction with a flexible display, that is to say using the functional element 260 .

With the approach presented, it is possible for the user to follow the tactile information from any point of contact without having to take their eyes off the road. According to this exemplary embodiment, the sound waves 220, in particular ultrasonic waves, are diffracted at the double slit 205 and interfere to form amplified wave nodes 225. These wave nodes 225, also referred to as nodes, meet a resonance chamber, which is described as a resonance chamber 235, and are amplified again. The geometry of the double gap 205 and the resonance chamber 235 are adjusted in such a way that a tactile output point can be generated selectively for each sound wave frequency impact. The resonance chamber 235 improves its function if it is covered with a flexible membrane 270, which can be implemented as a flexible display film, for example. For example, the double gap 205 is typographically in or on the sound barrier 200 applied. Alternatively, for example, in the case of a thick plate, a vacuum acoustic wave barrier can be introduced using a depth-adjustable laser focal point. For example, the carrier medium 265 has mechanisms for filtering sound waves 220 . Furthermore, the flexible functional element 260 is formed as a flexible display, which is laminated onto the carrier medium 265, for example. The resonance chamber 235 is spanned, for example, by the functional film 270 as a membrane and thus forms a hollow resonance body.

Furthermore, the double gap 205 is arranged in the sound barrier 200, also referred to as a sound wave barrier. When the sound waves 220 pass through, they are diffracted and interfere with each other to form wave nodes 225 that add up and wave nodes 230 that cancel each other out even more amplified natural vibration 240 on the membrane 270 transmits the tactile stimulus. According to this exemplary embodiment, a laser method is not shown, which precisely introduces a sound wave barrier and/or prints a sound wave barrier onto the carrier medium 265 by means of setting a focal point.

3 shows a schematic representation of an embodiment of a routing device 110. The in 3 The guidance device 110 described is similar to that in 2 described signage device 110 and can be implemented, for example, for a vehicle and/or for a display device, as shown in 1 have been described. According to this exemplary embodiment, the signaling device 110 additionally has at least one further resonance chamber 300, which is laterally offset from the resonance chamber 240 and is designed to amplify interfered sound waves through natural oscillations of the further resonance chamber 300 in order to generate further vibrations, in particular the vibrations and the further vibrations waved out to show the way. Analogous to this, the signaling device 110 has a plurality of additional resonance chambers 305, all of which are arranged at equal distances from one another according to this exemplary embodiment. Furthermore, the functional element 260 and the functional film 270 are flexible. According to this exemplary embodiment, the sound barrier 200 also has at least one additional double slit 310 that is laterally offset from the double slit 205 . The further double gap 310 also has a further first opening 315 and a further second opening 320 arranged adjacent to the further first opening 315 . The further double slit 310 is designed to diffract sound waves and to cause interference of the diffracted sound waves. According to this exemplary embodiment, the further double gap 310 is arranged at the level of the further resonance chamber 300 . Analogously to this, the sound barrier 200 additionally has, in particular, a plurality of double columns 325 which are each arranged at the level of the plurality of additional resonance chambers 305 .

According to this exemplary embodiment, a functional detail is shown, in which sound waves 220 generate a tactile stimulus perceptible by the user at a position. Consequently, it is possible for the user to follow the tactile stimulus using the crests 245 . According to one embodiment, it is also possible to dimension the double gap 205 differently.

4 shows a schematic representation of an embodiment of a routing device 110. The in 4 The guidance device 110 shown is similar to that in FIG 3 described signaling device 110. According to this embodiment, a direction of movement 400 of the feeler element 255 is shown, which is arranged according to this embodiment in the area of one of the additional resonance chambers 305. For example, the user's tactile element 255 is guided in the direction of the resonance chamber 235, 300, 305 closest to him using the vibrations and the natural oscillation 240. Furthermore, according to this exemplary embodiment, the functional element is not shown. However, it can be assumed that the routing device 110 according to this exemplary embodiment, as well as in at least one of the 2 until 3 can be realized with the functional element.

According to this exemplary embodiment, a frequency of 128 Hz is applied to the signaling device 110 purely by way of example. The resonance chamber 235, for example in 3 at 64Hz issued a tactile stimulus was dimensioned accordingly for the 64Hz frequency. With a frequency of 96 Hz, for example, the resonance chamber 235 is not caused to vibrate naturally. In contrast, a tactile stimulus is output to one of the additional resonance chambers 305 at a frequency of 128 Hz and is thus transferred from the resonance chamber 235 to the additional resonance chamber 305 . A feeling of vibration or, for example, a buzzing can be perceived in a range from a few Hertz to a few hundred Hertz.

What is special about this is that a sound wave frequency is continuously run through in a frequency spectrum and a resonance hollow body, here the additional resonance chamber 305, outputs the tactile stimulus. A perceptible elevation is, for example, 1 µm (1mm=1000µm) on a highly smooth surface, so that a feeling of vibration can be distinguished from a sense of touch. The sense of touch is most effective at the frequencies mentioned, since it affects how long a vibration can still be perceived at the frequencies mentioned, with decreasing amplitude.

5 shows a schematic representation of an embodiment of a routing device 110. The in 5 The guidance device 110 shown is similar to that in FIG 4 described signage device 110.
According to this exemplary embodiment, the sound waves 220 are output in such a way that one of the additional resonance chambers 305 is set in natural vibration 240 .

According to this exemplary embodiment, the frequency of the impingement is 128 Hz, for example, so that the tactile stimulus is emitted at one of the additional resonance chambers 305 . The tactile stimulus is not relevantly perceptible on the membranes of the resonance chambers 235, 300 and on one of the additional resonance chambers 305.

6 shows a schematic representation of an embodiment of a routing device 110. The in 6 The guidance device 110 shown is similar to that in FIG 4 described guidance device 110. According to this embodiment, a further direction of movement 600 of the feeler element 255 is shown, which is arranged according to this embodiment in the region of the further resonance chamber 300. According to this exemplary embodiment, the further direction of movement 600 runs in the opposite direction to that in FIG 4 described direction of movement. This directs the user to an input area closest to him.

According to this exemplary embodiment, a further functional characteristic is shown in that a reversal of direction is indicated using the further direction of movement 600 . With a frequency of 265Hz, at the in 3 and or 4 A tactile stimulus with the characteristics of a returning wave is emitted at the omitted point.

7 shows a schematic representation of different forms 700, 705, 710, 715 for a routing device according to an embodiment. The characteristics 700, 705, 710, 715 can be implemented, for example, in a signage device, as in one of 1 until 6 was described. Just as the double gaps can be shaped differently, it is also possible for the resonance chambers to be shaped differently. According to this exemplary embodiment, in particular the forms 700, 705, 710, 715 on a plurality 720 of resonance chambers in connection with different frequencies of the sound waves 220 are shown.

In Figure 14, the plurality 720 of small diameter resonant chambers are responsive to sound waves 220 having a frequency of, for example, 64Hz.

In the second form 705, the plurality 720 of resonance chambers has a smaller diameter compared to the first form 700, which react to sound waves 220 with a frequency of 256 Hz, for example. Due to the smaller diameter, for example, a distance between two of the plurality 720 of resonance chambers is increased at the same time.

In the third form 710, the plurality 720 of resonance chambers has an increased diameter compared to the first form 700 and the second form 705, which respond to sound waves 220 with a frequency of 128 Hz, for example. The distance between the individual resonance chambers is thus greatly reduced.

In the fourth instance 715, the plurality 720 of resonant chambers have a smaller diameter than the third instance 710 but a larger diameter than the first instance 700 and the second instance 705, which are responsive to sound waves 220 having a frequency of, for example, 96Hz.

According to this exemplary embodiment, differently dimensioned constellations are shown. A constellation has, for example, the carrier medium, the plurality 720 of resonance chambers, ie their volume dimensions, and the double gap with its gap spacing and width. A flexible functional film is provided as a membrane, for example. Each of the characteristics 700, 705, 710, 715, also referred to as a constellation, is assigned a different frequency, such as 64Hz, 96Hz, 128Hz and 256Hz. The majority of the resonance chambers 720 have different structural dimensions. Alternatively, it is conceivable to output 16 categories, in which case, according to this exemplary embodiment, not all of the possible configurations with regard to their location, constellation and/or grouping is shown. Alternatively, a comprehensive configuration of symbols is also conceivable. The resonance chambers 720 lying in the grid in relation to one another are located in such a way that a small point reacts to at least two frequencies. Furthermore, different wave directions can only be realized as examples.

8th shows a flow chart of a method 800 according to an embodiment for operating a routing device. The method 800 can be carried out for a routing device, as is used, for example, in at least one of the 1 until 6 was described. To this end, the method 800 comprises a step 805 of outputting sound waves in response to a detection signal, a step 810 of generating a vibration using a natural oscillation of the resonance chamber, and a step 815 of providing the vibration to the functional element in order to indicate the direction to an input area of a display device to assign.

The method steps presented here can be repeated and carried out in a different order than the one described.

9 12 shows a block diagram of a device 125 according to an embodiment. According to this exemplary embodiment, device 125 is designed to control or carry out a method for operating a signage device, as is the case, for example, in 8th was described. For this purpose, device 120 has, for example, an output unit 900 for outputting sound waves in response to a detection signal 135, a generating unit 905 for generating a vibration using a natural oscillation of the resonance chamber, and a supply unit 910 for supplying the vibration to the functional element in order to set the direction to a Assign input area of a display device.

10 shows a flowchart of a method 1000 according to an embodiment for producing a signage device. The method 1000 produces a routing device, as is the case, for example, in one of 1 until 6 was described. The method 1000 includes a step 1005 of providing, a step 1010 of arranging, a step 1015 of applying or introducing and a step 1020 of arranging. In step 1005 of providing, the carrier medium is provided with a resonance chamber side and a sound barrier side opposite the resonance chamber side. In step 1010 of arranging, at least one resonance chamber is arranged on the resonance chamber side of the carrier medium. In step 1015 of application or introduction, the sound barrier is applied or introduced into the carrier medium on the sound barrier side of the carrier medium. In step 1020 of arranging, the functional element is arranged on the resonance chamber side to produce the routing device.

11 11 shows a block diagram of a device 1100 according to an embodiment. The device 1100 is designed, for example, to carry out or to control a method for producing a signage device, as is described, for example, in 10 was described. For this purpose, the device 1100 has, for example, a supply unit 1105, an arrangement unit 1110, an application unit 1115 and a further arrangement unit 1120. The supply unit 1105 is designed, for example, to provide the carrier medium with a resonance chamber side and a sound barrier side opposite the resonance chamber side. The arrangement unit 1110 is designed to cause at least one resonance chamber to be arranged on the resonance chamber side of the carrier medium. The application unit 1115 is designed to cause the sound barrier to be applied or introduced into the carrier medium on the sound barrier side of the carrier medium, and the further arrangement unit 1120 is designed to cause the functional element to be arranged on the resonance chamber side in order to produce the signage device.

The method steps presented here can be repeated and carried out in a different order than the one described.

If an embodiment includes an "and/or" link between a first feature and a second feature, this should be read in such a way that the embodiment according to one embodiment includes both the first feature and the second feature and according to a further embodiment either only that having the first feature or only the second feature.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• US 8816977 B2 [0002]

Claims (14)

Guidance device (110) for tactilely indicating a direction to an input area (115), wherein the guidance device (110) has the following features: - a sound barrier (200) with at least one double gap (205), wherein the double gap (205) has a first opening (210) and a second opening (215) arranged adjacent to the first opening (210), and wherein the double gap (205 ) is adapted to diffract sound waves (220) and to cause interference of the diffracted sound waves (220); - a resonance chamber (235) arranged adjacent to the sound barrier (200) and adapted to amplify interfered sound waves (220) by a natural mode (240) to provide a vibration; and - a flexible functional element (260), wherein the sound barrier (200) and the functional element (260) are arranged on opposite sides, wherein the functional element (260) is arranged adjacent to the resonance chamber (235) and is configured to use the vibration pointing the direction to the input area (115). Directional device (110) according to claim 1 , having a carrier medium (265) for conducting the sound waves (220) from the double gap (205) to the resonance chamber (235), in particular wherein the carrier medium (265) is designed for filtering sound waves (220). Directional device (110) according to one of the preceding claims, wherein the functional element (260) is formed as a display film of a display device (105). Guidance device (110) according to one of the preceding claims, with an actuator for providing sound waves (220) in the direction of the sound barrier (200). Guidance device (110) according to one of the preceding claims, wherein a shape and/or a dimension of the openings of the double gap (205) differs. Guidance device (110) according to one of the preceding claims, with at least one further resonance chamber (300) laterally offset from the resonance chamber (235), which is designed to amplify interfered sound waves (220) by natural oscillations (240) of the further resonance chamber (300), to generate further vibrations, in particular wherein the resonance chamber (235) and the further resonance chamber (300) are designed to emit the vibrations and the further vibrations in waves in order to show the way. Signaling device (110) according to one of the preceding claims, wherein the sound barrier (200) has at least one further double slit (310) laterally offset from the double slit (205), the further double slit (310) having a further first opening (315) and one adjacent to the further first opening (315) arranged further second opening (320), and wherein the further double gap (310) is formed to diffract sound waves (220) and to cause an interference of the diffracted sound waves (220). Signaling device (110) according to one of the preceding claims, wherein the resonance chamber (235) is spanned, enclosed and/or surrounded by a membrane (270), which is in particular formed as a functional film. Display device (105) for a vehicle (100) with the following features: - a display area (120) for displaying an image and/or an input area (115) for entering data; and - A routing device (110) according to any one of the preceding claims. Method (800) for operating a routing device (110) according to one of Claims 1 until 8th wherein the method (800) comprises the steps of: - outputting (805) sound waves (220) in response to a detection signal (135); - Generating (810) a vibration using a natural oscillation (240) of the resonance chamber (235); and - providing (815) the vibration to the functional element (260) in order to indicate the direction to an input area (115) of a display device (105). Method (1000) for producing a routing device (110) according to one of Claims 1 until 8th , wherein the method (1000) comprises the following steps: - providing (1005) the carrier medium (265) with a resonance chamber side (267) and a sound barrier side (268) opposite the resonance chamber side (267); - Arranging (1010) at least one resonance chamber (235) on the resonance chamber side (267) of the carrier medium (265); - Applying (1015) or introducing the sound barrier (200) into the carrier medium (265) on the sound barrier side (267) of the carrier medium (265); and - arranging (1020) the functional element (260). the resonance chamber side (267) to make the signage device (110). Device (125; 1100), which is set up to carry out the steps (805, 810, 815; 1005, 1010, 1015, 1020) of one of the methods (800; 1000) according to one of Claims 10 or 11 to be carried out and/or controlled in corresponding units (900, 905, 910; 1105, 1110, 1115, 1120). Computer program that is set up to carry out the steps of one of the methods (800; 1000) according to one of Claims 10 or 11 execute and/or control. Machine-readable storage medium on which the computer program Claim 13 is saved.

Images