JP5590345B2 - Input/output device, input/output method, and input/output program - Google Patents

Description

The present invention relates to an input/output device, an input/output method, and an input/output program.

In recent years, small terminal devices such as mobile phones have become widespread. Some terminal devices have a variety of functions in addition to making calls and inputting and outputting text. To achieve this diversification of functions, terminal devices have been developed that are equipped with panel speakers that vibrate a panel to generate sound, and terminal devices that are equipped with pressure sensors (pressure sensors) that detect operational inputs by users.

For example, Patent Document 1 describes a panel speaker that is floatingly supported via a gasket on a mobile phone body equipped with a liquid crystal display device, and that comprises a diaphragm panel that generates sound waves, and a vibration element that is mounted and joined to the diaphragm panel and converts electrical audio signals into acoustic vibrations, the panel speaker being characterized in that the thickness of the diaphragm panel gradually decreases as it moves from the vibration element to the periphery of the diaphragm panel, causing the entire panel to vibrate uniformly.
Furthermore, Patent Document 2 describes an electronic device in which a touch panel unit, a display panel unit and a pressure sensor unit are housed between a main plate unit of a first housing unit and a main plate unit of a first portion of a second housing unit, and the elastic portion of the pressure sensor unit is pre-compressed to reduce variations in sensitivity to pressure force.

JP 2007-82009 A JP 2011-86191 A

However, the vibration element (piezoelectric element) in Patent Document 1 is used only to realize the function of converting an electric voice signal into acoustic vibration. Also, the pressure sensor in Patent Document 2 is used only to realize the function of determining the pressure applied by the user as a change in capacitance.

As a result, when simultaneously incorporating the functions of a panel speaker and a pressure sensor, it was necessary to incorporate both corresponding devices, which was an obstacle to miniaturization.

(1) The present invention has been made to solve the above-mentioned problems, and one aspect of the present invention is an input/output device comprising: a communication control unit that controls a communication state between a device itself and another device; an output unit that outputs an audio signal received from the other device ; a vibration panel; a vibration device attached to the vibration panel and having a function of converting a distortion caused by pressing the vibration panel into an electrical signal and a function of generating vibrations based on the audio signal; a pressure detection unit that calculates a magnitude of the distortion based on the electrical signal; a switching unit that switches between connecting the vibration device to the output unit and connecting the vibration device to the pressure detection unit; and a control unit that, when the communication state is a voice call state, controls the switching unit to connect the vibration device to the output unit and output the vibration to the vibration panel, and, when the communication state is a state other than the voice call state , controls the switching unit to connect the vibration device to the pressure detection unit and output the electrical signal to the pressure detection unit.

(2) Another aspect of the present invention is the input/output device described above, wherein the control unit outputs a switching signal to the switching unit to switch between connecting the vibration device to the output unit and connecting the vibration device to the pressure detection unit ;
The switching unit switches between connecting the vibration device to the output unit and connecting the vibration device to the pressure detection unit based on the switching signal .

(3) Another aspect of the present invention is the input/output device described above, wherein the vibration device includes a first vibration element that transmits the vibration to the vibration panel, and a second vibration element that converts the distortion into the electrical signal and outputs it.

(4) Another aspect of the present invention is the input/output device described above, wherein the second vibration element can also operate as a vibration element that transmits the vibration to the vibration panel, and the switching unit is connected to the second vibration element and, based on the switching signal, switches between connecting the vibration device to the output unit and inputting the audio signal from the output unit to the second vibration element, or connecting the vibration device to the pressure detection unit and outputting the electrical signal from the second vibration element to the pressure detection unit.
(5) Another aspect of the present invention is an input/output device including: an output unit that outputs an audio signal; a vibration panel; a first vibration element that generates vibrations based on the audio signal and transmits the vibrations to the vibration panel; and a second vibration element that has a function of generating vibrations based on the audio signal and transmitting the vibrations to the vibration panel and a function of converting distortion caused by the vibration panel being pressed into an electrical signal and outputting it, the first vibration element and the second vibration element being spaced apart and arranged on the vibration panel; a pressure detection unit that calculates a magnitude of the distortion based on the electrical signal; a switching unit that switches between connecting the second vibration element to the output unit or connecting the second vibration element to the pressure detection unit; and a control unit that controls the switching unit to connect the second vibration element to the output unit to output the vibration to the vibration panel, or connect the second vibration element to the pressure detection unit to output the electrical signal to the pressure detection unit.

(6) Another aspect of the present invention is the input/output device described above, further comprising a position detection unit that detects position information indicating a position where the vibration panel is pressed, and a pressure correction unit that calculates a distortion at the position where the vibration panel is pressed based on the position information detected by the position detection unit and the magnitude of the distortion calculated by the pressure detection unit.

(7) Another aspect of the present invention is the input/output device described above, wherein the vibration panel is a panel or a protective plate of a display unit that displays an image.

(8) Another aspect of the present invention is the input/output device described above, wherein the vibration panel is a panel surface that covers the position detection unit.

(9) In another aspect of the present invention, the frequency band of the electrical signal includes components in a band in which vibration can be perceived.

(10) Another aspect of the present invention is an input/output method for an input/output device, comprising the steps of: when a communication state between the input/output device and another device is other than a voice call state, connecting a vibration device attached to a vibration panel to a pressure detection unit, converting a distortion of the vibration panel caused by pressing the vibration panel into an electrical signal by the vibration device, and calculating a magnitude of the distortion by the pressure detection unit based on the converted electrical signal; when the communication state is a voice call state, connecting the vibration device to an output unit, generating vibrations by the vibration device based on an audio signal received from the other device and outputting the output unit, and outputting the generated vibrations to the vibration panel;
This is an input/output method including:
(11) Another aspect of the present invention is an input/output method for an input/output device including a vibration device that includes a first vibration element that generates vibrations based on an audio signal and transmits the vibrations to a vibration panel, and a second vibration element that generates vibrations based on the audio signal and transmits the vibrations to the vibration panel and converts distortion caused by the vibration panel being pressed into an electrical signal and outputs it, and the first vibration element and the second vibration element are spaced apart and arranged on the vibration panel, the input/output method including the steps of: when a communication state between the device itself and another device is a state other than a voice call state, connecting the second vibration element to a pressure detection unit, converting the distortion of the vibration panel caused by the vibration panel being pressed into an electrical signal by the second vibration element, and calculating the magnitude of the distortion by the pressure detection unit based on the converted electrical signal; and when the communication state is a voice call state, connecting the second vibration element to an output unit, generating vibrations by the second vibration element based on an audio signal received from the other device and outputting it from the output unit, and outputting the generated vibrations to the vibration panel.

(12) Another aspect of the present invention is a program for causing a computer of an input/output device to execute the steps of: connecting a vibration device attached to a vibration panel to a pressure detection unit when the communication state between the input/output device and another device is other than a voice call state, converting a distortion of the vibration panel caused by pressing the vibration panel into an electrical signal by the vibration device, and calculating the magnitude of the distortion based on the converted electrical signal by the pressure detection unit; and, when the communication state is a voice call state, connecting the vibration device to an output unit, generating vibrations by the vibration device based on an audio signal received from the other device and outputting the audio signal from the output unit, and outputting the generated vibrations to the vibration panel.
(13) Another aspect of the present invention is a program for causing a computer of an input/output device including a first vibration element that generates vibrations based on an audio signal and transmits the vibrations to a vibration panel, and a second vibration element that has a function of generating vibrations based on the audio signal and transmitting the vibrations to the vibration panel and a function of converting distortion caused by pressing the vibration panel into an electrical signal and outputting it, the first vibration element and the second vibration element being spaced apart and arranged on the vibration panel, to execute the following steps: when the communication state between the input/output device and another device is a state other than a voice call state, connect the second vibration element to a pressure detection unit, convert the distortion of the vibration panel caused by pressing the vibration panel into an electrical signal by the second vibration element, and calculate the magnitude of the distortion by the pressure detection unit based on the converted electrical signal; and when the communication state is a voice call state, connect the second vibration element to an output unit, generate vibrations by the second vibration element based on the audio signal received from the other device and output from the output unit, and output the generated vibrations to the vibration panel.

According to the present invention, a device corresponding to a panel speaker can be used as a device corresponding to a pressure sensor, thereby achieving miniaturization.

1 is a front view illustrating an external appearance of a terminal device according to a first embodiment of the present invention. 2 is a cross-sectional view illustrating a cross section of a terminal device according to the present embodiment. 2 is a block diagram showing an internal configuration of a terminal device according to the embodiment; FIG. 1 is a perspective view illustrating a structure of a vibration device according to an embodiment of the present invention. 1 is a cross-sectional view illustrating one cross section of a vibration device according to an embodiment of the present invention. 10 is a cross-sectional view illustrating another cross section of the vibration device according to the embodiment. FIG. 11 is a cross-sectional view illustrating another cross section of the terminal device according to the embodiment. FIG. 4 is a flowchart showing an input/output process according to the embodiment. 11 is a front view illustrating the appearance of another configuration example of the terminal device according to the present embodiment. FIG. 11 is a cross-sectional view illustrating a cross section of another configuration example of the terminal device according to the present embodiment. FIG. FIG. 11 is a block diagram showing an internal configuration of a terminal device according to a second embodiment of the present invention. 1 is a perspective view illustrating a structure of a vibration device according to an embodiment of the present invention. 1 is a cross-sectional view illustrating one cross section of a vibration device according to an embodiment of the present invention. 10 is a cross-sectional view illustrating another cross section of the vibration device according to the embodiment. FIG. 13 is a flowchart illustrating a process of correcting a pressure value according to a third embodiment of the present invention. 4 is a diagram illustrating an example of a relationship between an operation input position and a position of a vibration device according to the embodiment. FIG. 11 is a diagram illustrating an example of pressure correction information according to the embodiment. 13A and 13B are diagrams illustrating other examples of the pressure correction information according to the embodiment. FIG. 11 is a block diagram illustrating an internal configuration of a modified example of the terminal device according to the embodiment described above. FIG. 11 is a block diagram illustrating an internal configuration of another modified example of the terminal device according to the embodiment described above.

First Embodiment
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing the external appearance of a terminal device 1 (input/output device) according to this embodiment.
The terminal device 1 includes a housing 10 , a vibration device 16 , and a vibration panel 18 .
The housing 10 accommodates each component that constitutes the terminal device 1 .
The vibration device 16 has an elongated shape and is disposed on a portion of the front or back surface of the diaphragm panel 18, for example, near the upper end of the back surface of the diaphragm panel 16 in Fig. 1. The vibration device 16 generates vibrations based on an input electrical signal and transmits the generated vibrations to the diaphragm panel 18 to vibrate the diaphragm panel 18. The vibration device 16 is, for example, an electroacoustic transducer that can constitute a speaker or receiver by vibrating the diaphragm panel 18, or can constitute a bone conduction receiver that applies vibrations to a bone (for example, the skull) and transmits the vibrations directly to the auditory nerve.
The vibration device 16 also converts the distortion transmitted from the diaphragm panel 18 into an electric signal. This distortion is applied by pressing a certain area of the diaphragm panel 18. Therefore, the signal value of the converted electric signal represents the pressing force.

FIG. 2 is a cross-sectional view showing a cross section of the terminal device 1 taken along line AA' in FIG.
The terminal device 1 shown in FIG. 2 further includes a position detection unit 19 .
For example, a part of the housing 10 of the input/output device may be applied to the vibration panel 18. The vibration panel 18 transmits distortion caused by the received operation input to the vibration device 16.
The position detection unit 19 is provided on the back surface of the vibration panel 18. The position detection unit 19 detects the position where the vibration panel 18 accepts an operation input (for example, the position where the user's finger touches). The position detection unit 19 is, for example, a touch pad used in a notebook computer or the like. This makes it possible to detect the presence or absence of contact with the vibration panel 18 and the position of the contact. The position detection unit 19 outputs position information representing the position where the operation input is accepted to a position input unit 116 and a pressure correction unit 114 described later. The position detection unit 19 includes, for example, a plurality of sensors that detect a change in capacitance when touched by a finger, and outputs information representing the positions where the sensors are arranged as the above-mentioned position information.

FIG. 3 is a block diagram showing the configuration of the terminal device 1 in further detail.
As shown in FIG. 3, the terminal device 1 includes an input/output unit 11, a control unit 12, an antenna unit 13, a communication unit 14, and a decoding unit 15.
The input/output unit 11 includes a vibration device 16 , a switching unit 112 , an audio output unit 113 , a pressure correction unit 114 , a pressure input unit 115 , a position detection unit 19 , and a position input unit 116 .

The switching unit 112 is, for example, a double-pole double-throw switch, and includes contacts A and B and a movable segment C. Based on a switching signal input from the switching control unit 122, the switching unit 112 outputs an input electrical signal input from the audio output unit 113 to the vibration device 16 via the contact A and the movable segment C, and outputs an electrical signal input from the vibration device 16 to the pressure correction unit 114 via the movable segment C and the contact B.
When the input switching signal indicates that the input electrical signal from the audio output unit 113 is to be output to the vibration device 16, the switching unit 112 switches the movable segment C to contact A. At this time, the switching unit 112 outputs the input electrical signal from the audio output unit 113 to the vibration device 16. When the input switching signal indicates that the output electrical signal from the vibration device 16 is to be input to the pressure correction unit 114, the switching unit 112 switches the movable segment C to contact B. At this time, the switching unit 112 outputs the output electrical signal from the vibration device 16 to the pressure correction unit 114.

The audio output unit 113 generates the decoded audio signal input from the decoding unit 15 as an output electrical signal and outputs it to the switching unit 112 .
The pressure correction unit 114 calculates the magnitude of distortion (pressure) applied to the vibration device 16 from the output electrical signal from the switching unit 112, corrects it using position information from the position detection unit 19 indicating the position at which the vibration panel 18 accepted the operation input, and outputs it to the pressure input unit 115.

The pressure input unit 115 outputs to the terminal state control unit 123 the distortion (pressure) at the position where the vibration panel 18 accepts the operation input, obtained from the pressure correction unit 114 .
The position input unit 116 outputs the position information input from the position detection unit 19 to the terminal state control unit 123 .

The control unit 12 includes a communication control unit 121 , a switching control unit 122 , and a terminal state control unit 123 .
The communication control unit 121 manages and controls the communication state (e.g., communication start request, communication in progress, communication end request, etc.) between the terminal device 1 and another device (e.g., a base station device) and the type of data transmitted and received (e.g., voice, text, etc.) under the control of the terminal state control unit 123. The communication control unit 121 outputs control information/state indicating the communication state and the type of data to the communication unit 14 and the terminal state control unit 123.

The switching control unit 122 instructs the switching unit 112 to switch between playing audio and inputting distortion (pressure) on the basis of an instruction notified from the terminal state control unit 123. The instruction notified to the switching control unit 122 is determined by the terminal state control unit 123 based on the control information/state, etc. input from the communication control unit 121.
For example, when the terminal control unit 123 is notified that the state of the communication control unit 121 is a voice call state, the terminal state control unit 123 instructs the switching control unit 122 to output a switching signal to the switching unit 112 so as to output the output electrical signal from the audio output unit 213 to the vibration device 16.
On the other hand, if the terminal state control unit 123 needs to input distortion (pressure force) from the vibration panel in a state other than the above-mentioned voice call state, the terminal state control unit 123 instructs the switching control unit 122 to generate a switching signal to cause the switching unit 112 to output the output electrical signal from the vibration device 16 to the pressure correction unit 114.

The terminal state control unit 123 controls the operation of the terminal device 1 based on operation input signals input from the position input unit 116 and the pressure input unit 115 .
For example, a case will be described in which a display unit of a terminal (not shown) displays to a user a list of multiple character strings representing names of functions to be selected, in which a position input signal is input to position input unit 116 to select a position where the character string is displayed, and a pressure input signal is input to pressure input unit 115 to indicate a pressure exceeding a predetermined threshold.
At this time, the terminal state control unit 123 determines that the function name corresponding to the character string has been selected, and starts the function corresponding to the selected function name.

The antenna unit 13 inputs a radio band signal received from another device (for example, a base station device) to the communication unit 14 .
The communication unit 14 down-converts the radio band signal input from the antenna unit 13 to generate a baseband signal. When the control information input from the communication control unit 121 indicates that the communication state is active and the type of data is voice, the communication unit 14 demodulates the generated baseband signal to generate a demodulated voice signal. The communication unit 14 outputs the demodulated voice signal to the decoding unit 15.
The decoding unit 15 decodes the demodulated audio signal input from the communication unit 14 using a decoding method corresponding to the encoding method used for encoding, to generate a decoded audio signal. The decoding unit 15 outputs the decoded audio signal to the audio output unit 113.

Next, the configuration of the vibration device 16 according to this embodiment will be described.
FIG. 4 is a perspective view illustrating an example of the vibration device 16. As shown in FIG.
The vibration device 16 includes one vibration element 16-1 and a mold 163. An example of the vibration element is composed of a piezoelectric element 161 and piezoelectric electrodes 162-1 and 162-2. The piezoelectric element 161 is, for example, a piezoelectric bimorph actuator that generates a minute displacement by bonding a piezoelectric ceramic plate to a metal plate and applying an electric field to the plate (see, for example, Japanese Patent Application Laid-Open No. 8-293631). Therefore, when an AC electric signal is input, the piezoelectric element 161 generates a displacement distortion according to the signal value as vibration.

FIG. 5 is a cross-sectional view of the terminal device 1 taken along line BB' in FIG.
The vibration element 16-1 is surrounded by an elastic mold 163, and an electrical signal (output electrical signal) having a voltage value corresponding to the distortion (pressure) transmitted from the mold 163 is generated in the piezoelectric element 161 and output to the switching unit 112 via electrodes 162-1 and 162-2.
The electrodes 162-1 and 162-2 are respectively disposed on the front and back surfaces of the right end of the piezoelectric element 161. The electrodes 162-1 and 162-2 output a potential difference generated by the vibration of the piezoelectric element 161 to the switching unit 112 as an electric signal.

Furthermore, the piezoelectric element 161 generates vibrations in response to changes in the voltage value of an input electrical signal (input electrical signal).
The electrodes 162-1 and 162-2 supply a potential difference of an input electrical signal input from the switching unit 112 to the front and back surfaces of the piezoelectric element 161. The piezoelectric element 161 is deformed by the input electrical signal and generates vibration.

FIG. 6 is a cross-sectional view showing a cross section perpendicular to the front-back direction of the vibration device 16 in FIG.
The piezoelectric element 161 has a flat shape and is disposed surrounded by a mold 163 .
The electrode 162-1 is disposed on the front surface of the right end of the piezoelectric element 161. The electrode 162-2 is disposed on the rear surface of the right end of the piezoelectric element 161. The electrode 162-2 is not shown in FIG. 5 because it is located directly behind the electrode 162-1.

FIG. 7 is a cross-sectional view showing another cross section of the terminal device 1. As shown in FIG.
This cross-sectional view shows a cross section taken along line BB' in Fig. 1. In Fig. 6, the horizontal direction represents the left-right direction, and the vertical direction represents the front-back direction.
The terminal device 1 further includes an elastic adhesive 117 (which may be, for example, a double-sided adhesive tape). The surface of the mold 163 of the vibration device 16 and the back surface of the position detection unit 19 are in close contact with each other by the adhesive 117. That is, the position detection unit 19 is sandwiched between the surface of the mold 163 and the back surface of the vibration panel 18. This allows the distortion (pressure) applied to the surface of the vibration panel 18 to be efficiently transmitted to the vibration element 16-1 (piezoelectric element 161) via the position detection unit 19, the adhesive 117, and the mold 163 with a simple configuration. Similarly, the vibration of the vibration element 16-1 (piezoelectric element 161) can also be efficiently transmitted to the vibration panel 18.

Next, the input/output process performed by the input/output unit 11 will be described.
FIG. 8 is a flowchart showing the input/output process according to this embodiment.
(Step S101) The switching unit 112 receives a switching signal from the switching control unit 122. After that, the process proceeds to step S102.
(Step S102) The switching unit 112 switches the switching intercept C according to whether the input switching signal indicates that the input electrical signal from the audio output unit 113 is to be output to the vibration device 16 or that the output electrical signal from the vibration device 16 is to be input to the pressure correction unit 114. If the input electrical signal from the audio output unit 113 is to be output to the vibration device 16 (Y in step S102), the process proceeds to step S103 and the intercept C is connected to contact A. If the input electrical signal from the vibration device 16 is to be input to the pressure correction unit 114 (N in step S102), the process proceeds to step S106 and the intercept C is connected to contact B.

(Step S103) The switching unit 112 switches the movable segment C so that it comes into contact with the contact A. Then, the process proceeds to step S104.
(Step S104) The switching unit 112 outputs the input electrical signal input from the audio output unit 113 to the vibration device 16. After that, the process proceeds to step S105.
(Step S105) The vibration device 16 generates vibrations based on the input electrical signal (audio-band electrical signal) input from the switching unit 112. As a result, the vibration device 16 transmits the generated vibrations to the vibration panel 18, vibrating the vibration panel 18. Thus, sound waves based on the input electrical signal are reproduced. Then, the process ends.

(Step S106) The switching unit 112 switches the movable segment C so that it comes into contact with the contact B.
Then, proceed to step S107.
(Step S107) The vibration device 16 converts the distortion (pressure) transmitted from the vibration panel 18 into an electric signal, and outputs it as an output electric signal to the pressure correction unit 114 via the switching unit 112. After that, the process proceeds to step S108.
(Step S108) The pressure correction unit 114 outputs the distortion (pressure) at the operated position to the pressure input unit 115 based on the position information input from the position detection unit 19 and the output electrical signal indicating the distortion (pressure) transmitted to the vibration device 16 output from the vibration device 16 via the switching unit 112. Then, proceed to step S109.
(Step S109) The terminal state control unit 123 controls the operation of the terminal device 1 based on the position information input from the position detection unit 19 via the position input unit 116 and the distortion (pressure) at the operated position input from the pressure input unit 115. For example, the terminal state control unit 123 performs processing related to function selection and character input. Then, the processing ends.

In this manner, the present embodiment includes a vibration device 16 that transmits vibrations obtained by converting an input electrical signal to the vibration panel 18 (diaphragm) and converts a pressure force transmitted from the vibration panel 18 into an output electrical signal. Also, the present embodiment switches between receiving an input electrical signal and outputting an output electrical signal based on a switching signal that instructs whether to play back audio.
As a result, the input/output unit 11 according to the present embodiment can use one vibration device 16 for voice reproduction or pressure detection, so that the terminal device 1 can be made smaller and lighter. In addition, the input/output unit 11 according to the present embodiment has a simple configuration as described above, so that it can be easily manufactured. In addition, the vibration panel 18 may be configured as a part of the outer surface of the housing 10 of the input/output device, and the vibration device 16 may be bonded thereto. This allows vibration to be transmitted to the vibration panel 18, making it possible to provide voice reproduction to the user. On the other hand, the vibration device 16 can detect distortion (pressure) applied to a part of the housing 10. In particular, the panel surface covering the position detection unit 19 capable of performing position detection like a touch pad or an input tablet may also be used as the vibration panel 18. This allows for miniaturization and weight reduction as described above.

FIG. 9 is a front view showing the appearance of another configuration example of the terminal device 1 according to the present embodiment.
The terminal device 1 includes a housing 10, a vibration device 16, a display unit 17, and a vibration panel 18. The difference from Fig. 1 is that the vibration panel 18 and a position detection unit 19 (not shown) are transparent, and the display unit 17 is disposed inside the housing in the center of the back side of the vibration panel.
The display unit 17 is, for example, a liquid crystal display, but may also be an organic electroluminescence display or the like, and optically displays an image, allowing the user to view the image through the transparent vibration panel 18. The vibration panel 18 is, for example, a transparent protective plate that covers the touch panel liquid crystal surface that displays the image. The vibration panel 18 is in contact with the vibration device 16 and is disposed so as to cover most of the surface of the terminal device 1. When the vibration panel 18 receives vibrations generated by the vibration device 16, the entire vibration panel 18 vibrates and radiates acoustic waves. When a pressing force is applied to the surface of the vibration panel 18, the vibration panel 18 transmits the distortion caused by the applied pressing force to the vibration device 16.

FIG. 10 is a cross-sectional view of the terminal device 1 taken along line AA' in FIG.
As shown in FIG. 10 , the terminal device 1 includes the display unit 17 .
The transparent position detection unit 19 is provided on the back surface of the vibration panel 18 as in the terminal device 1 of Fig. 2, but as shown in Fig. 10, its area may be limited to the same area as the surface of the display unit 17. The position detection unit 19 detects the position where a finger touches the vibration panel 18. The transparent vibration panel 18, the transparent position detection unit 19, and the display unit 17 are, for example, a touch panel liquid crystal surface of a mobile terminal. This makes it possible to detect the presence or absence of contact with the vibration panel 18 and the contact position in response to the position of the image content displayed on the display unit 17. Other configurations, block diagrams, and input/output processing flows may be the same as those constituting the terminal device 1 of Fig. 1.

In this manner, in this embodiment, the vibration device 16 is provided, which transmits vibrations obtained by converting an input electric signal to the vibration panel 18 (touch panel liquid crystal surface) and converts the pressure transmitted from the vibration panel 18 into an output electric signal. In this embodiment, the vibration device 16 is disposed near the receiver of a typical mobile phone, so that the vibration panel 18 vibrates with a larger amplitude near the ear during audio playback, enabling audio playback to be performed efficiently. In addition, since the receiver of a mobile phone is usually disposed above the touch panel liquid crystal surface, an efficient configuration can be achieved by using a transparent protective plate covering the touch panel liquid crystal surface as the vibration panel 18.
In this embodiment, the input/output unit 11 switches between receiving an input electrical signal and outputting an output electrical signal based on a switching signal that indicates whether to play back audio. This allows the input/output unit 11 of this embodiment to selectively use either audio playback or pressure detection with a single vibration device 16, and furthermore, the vibration panel 18 also serves as a liquid crystal touch panel, making it possible to reduce the size and weight of the terminal device 1. In addition, the input/output unit 11 of this embodiment has a simple configuration as described above, and is therefore easy to manufacture.

Second Embodiment
The terminal device 2 according to this embodiment has the same appearance as the terminal device 1 .
FIG. 11 is a block diagram showing the internal configuration of the terminal device 2 according to this embodiment.
The terminal device 2 includes an input/output unit 21 instead of the input/output unit 11 of the terminal device 1. The input/output unit 21 includes an audio output unit 213 instead of the audio output unit 113 of the input/output unit 11, and a vibration device 26 instead of the vibration device 16. Other configurations of the input/output unit 11, i.e., the position detection unit 19, the switching unit 112, the pressure correction unit 114, the pressure input unit 115, and the position input unit 116, are the same as those corresponding to those in Fig. 1. In addition, the configurations of the control unit 12, the antenna unit 13, the communication unit 14, and the decoding unit 15 are the same as those corresponding to those in Fig. 1.

The audio output unit 213 generates an output electrical signal from the decoded audio signal input from the decoding unit 15. The audio output unit 213 outputs the output electrical signal to the switching unit 112 and the vibration element 26-1 of the vibration device 26.

Next, the configuration of the vibration device 26 will be described.
FIG. 12 is a perspective view of a vibration device 26 according to the present embodiment.
FIG. 13 is a cross-sectional view of a vibration device 26 according to this embodiment, and shows a cross-section passing through a line corresponding to line BB' in FIG.
FIG. 14 is a cross-sectional view of the vibration device 26 according to the present embodiment, and is a cross-sectional view showing a cross section perpendicular to the front-back direction of the vibration device 26 in FIG.
It should be noted that the piezoelectric element 261-2 and the electrodes 262-2-1 and 262-2-2 are not shown in FIG. 13 because they are located directly above the piezoelectric element 261-1 and the electrodes 262-1-1 and 262-1-2, respectively.

The vibration device 26 includes a vibration element 26 - 1 (first vibration element), a vibration element 26 - 2 (second vibration element), and a mold 163 .
The vibration elements 26-1 and 26-2 are covered with a mold 163. The vibration elements 26-1 and 26-2 are configured to include a piezoelectric element 261-1 and electrodes 262-1-1 and 262-1-2, and a piezoelectric element 261-2 and electrodes 262-2-1 and 262-2-2, respectively, similar to the vibration element 16-1 in the first embodiment. The piezoelectric element 261-1 and the piezoelectric element 261-2 are arranged next to each other in the vertical direction, but are separated by a mold 163. The material of the mold 163 is the same as the material of the mold 163 in the first embodiment.

The electrodes 262-1-1 and 262-1-2 are attached to the front and back surfaces, respectively, of the right end of the piezoelectric element 261-1.
The electrodes 262-1-1 and 262-1-2 supply a potential difference of an input electrical signal input from the audio output unit 213 to the front and back surfaces of the piezoelectric element 261-1, causing the piezoelectric element 262-1 to generate vibrations.

The electrodes 262-2-1 and 262-2-2 are attached to the front and back surfaces, respectively, of the right end of the piezoelectric element 261-2.
The electrodes 262-2-1 and 262-2-2 supply the potential difference of the input electrical signal input from the switching unit 112 to the front and back surfaces of the piezoelectric element 261-2. This causes the piezoelectric element 262-2 to generate vibrations. The electrodes 262-2-1 and 262-2-2 output the potential difference generated by the vibration of the piezoelectric element 261-2 to the switching unit 112 as an output electrical signal.

Here, when the switching signal input to the switching unit 112 indicates that the input electric signal from the audio output unit 113 is to be output to the vibration element 26-2, both of the vibration elements 26-1 and 26-2 generate vibrations to vibrate the diaphragm panel 18. At this time, since the vibration generated by the vibration element 26-1 and the vibration generated by the vibration element 26-2 are synchronized, the two vibrations are superimposed, resulting in an emphasized vibration.
On the other hand, when the switching signal input to the switching unit 112 indicates that the output electrical signal from the vibration element 26-2 is to be input to the pressure correction unit 114, the vibration element 26-2 outputs an output electrical signal based on the pressure applied to the vibration element 26-2 to the switching unit 112. The pressure correction unit 114 calculates the magnitude of the distortion (pressure) applied to the vibration element 16-2 from the output electrical signal input from the switching unit 112, corrects it using position information from the position detection unit 19 that indicates the position at which the vibration panel 18 was touched, and outputs it to the pressure input unit 115.

As described above, in this embodiment, the vibration device 26 includes a vibration element 26-1 that transmits vibration resulting from a conversion of an input electric signal to the vibration panel 18, and a vibration element 26-2 that converts the distortion (pressure) transmitted from the vibration panel 18 into the output electric signal. This makes it possible to simultaneously realize audio reproduction and operation input.
In addition, the switching unit 112 switches between receiving an input electrical signal from the vibration element 26-2 and outputting an output electrical signal to the vibration element 26-2 based on a switching signal. This allows the user to selectively use sound reproduction using both the vibration elements 26-1 and 26-2 and sound reproduction and distortion (pressure) input in combination. If the user wishes to play back at a high volume, the switching unit 112 can be switched as in the former case, which emphasizes the vibration of the vibration panel 18 and allows the volume to be increased. On the other hand, if the user wishes to play back at a low volume, the switching unit 112 can be switched as in the latter case, which allows the user to configure the device to drive only the vibration element 26-1 (a vibration element with half the size) for sound reproduction for efficient playback, thereby reducing power consumption.

Third Embodiment
Next, a third embodiment of the present invention will be described.
This embodiment is characterized by detecting position information indicating the position at which the vibration panel 18 is touched, correcting the magnitude of the distortion (pressure) applied to the vibration device 16, which can be detected from the output electrical signal of the vibration device 16, based on the detected position information, and calculating distortion (pressure) information of the part that is in contact with the vibration panel 18.

The terminal device 3 according to this embodiment has an external appearance similar to that of the terminal device 1 shown in FIG. 1 and FIG. 2. The internal configuration of the terminal device 3 is also similar to that of the terminal device 1 shown in FIG. 3.

The pressure correction unit 114 calculates the magnitude of distortion (pressure) applied to the vibration device 16 from the output electrical signal input from the switching unit 112, corrects it using position information from the position detection unit 19 indicating the position at which the vibration panel 18 accepted the operation input, and outputs it to the pressure input unit 115.
The pressure input unit 115 outputs to the terminal state control unit 123 the distortion (pressure) at the position where the vibration panel 18 accepts the operation input, obtained from the pressure correction unit 114 .

Next, the pressure value correction process performed by the pressure correction unit 114 will be described.
FIG. 15 is a flowchart showing the pressure value correction process performed by the pressure correction unit 114 according to this embodiment.
(Step S201) The pressure correction unit 114 calculates the magnitude of the distortion (pressure) applied to the vibration device 16 from the electrical signal input from the switching unit 112. After that, the process proceeds to step S202.
(Step S202) Position information is input from the position detection unit 19 to the pressure detection unit 114. After that, the process proceeds to step S203.
(Step S203) The pressure detection unit 114 calculates the distance between the position indicated by the position information input from the position detection unit 19 and the position of the vibration device 16. In order to calculate the distance, the pressure correction unit 114 prestores a distance value from the position indicating the center position of the vibration device 16 to the position information value indicated by the position detection unit 19. Then, the process proceeds to step S204.

(Step S204) The pressure correction unit 114 determines a correction amount L(r) based on the calculated distance r. For example, the correction amount L(r) is calculated as a×r ² , where a is a preset real number. This makes it possible to correct the attenuation of the amplitude, which is inversely proportional to the square of the distance r.
As another example, the pressure correction unit 114 may read out the correction amount L(x, y) corresponding to the position information (x, y) input from the position detection unit from a storage unit included in the unit itself. The storage unit stores in advance the correction amount L(x, y) actually measured in the terminal device for each piece of position information (x, y) input from the position detection unit 19. An example of pressure correction information indicating the correspondence between the position information (x, y) and the correction amount L(x, y) will be described later. Then, the process proceeds to step S205.

(Step S205) The pressure correction unit 114 calculates a corrected pressure value by multiplying the magnitude of the distortion (pressure) applied to the vibration device 16 by the electrical signal input from the switching unit 112 by the determined correction amount L. Then, the process ends.
This allows the user to know the magnitude of the distortion (pressure) at the touched position on the vibration panel 18 even if the user is far away from the vibration device 16. Therefore, the terminal device 1 can obtain clues for controlling the operation mode based on the magnitude of the pressure, regardless of whether or not an operation is performed.

Next, an example of the pressure correction information will be described.
Fig. 16 is a diagram showing an example of the relationship between the coordinates (x, y) at which the vibration panel 18 accepts an operation input and the distance r from that position to the center of the vibration device 16. Figs. 17 and 18 are diagrams showing examples of pressure correction information stored in the storage unit.
17, the left column represents the distance r, and the right column represents the correction amount L. For example, in the case of coordinate 1, the correction amount L is 400 for distance r=200, and in the case of coordinate 2, the correction amount L is 1600 for distance r=40.
18, the left column represents position information (x, y), and the right column represents the correction amount L. For example, in the case of coordinate 1, the correction amount L for position information (x1, y1) is 400, and in the case of coordinate 2, the correction amount L for position information (x2, y2) is 1600.

In this manner, in this embodiment, the pressure information of contact with the vibration panel 18 is calculated based on the output electrical signal and the position information. This eliminates differences due to the position where the user operates, and makes it possible to correctly obtain the pressure value generated by the operation.

In the above description, the terminal device 1, 2, or 3 is an input/output device with a communication function, and a case where the received voice is played back has been described as an example, but this is not limited to this in the present embodiment. In the present embodiment, the terminal device 1, 2, or 3 may be any electronic device that has a voice playback function and an operation input function.

In the above-described input/output device having a communication function, the terminal state control unit 123 determines whether the terminal device 1, 2, or 3 performs voice playback or operation input based on information from the communication control unit 121, and the switching control unit 122 generates a switching signal indicating that the switching unit 112 outputs the output electrical signal from the audio output unit 113 to the vibration device 16 or inputs the input electrical signal from the vibration device 16 to the pressure correction unit 114. In the electronic device having the voice playback function and the operation input function of the above-described embodiment, the terminal state control unit 123 determines whether the terminal device 1, 2, or 3 performs voice playback, and when it determines that voice playback is to be performed, the switching control unit 122 may generate a switching signal indicating that the switching unit 112 outputs the output electrical signal from the audio output unit 113 to the vibration device 16. In that case, the switching unit 112 may control whether to tilt the movable segment C to A or B depending on whether the input switching signal indicates voice playback.

FIG. 19 is a block diagram showing the configuration of a terminal device 4 according to one embodiment.
The terminal device 4 according to this embodiment further includes a voice reproduction unit 31, a voice data storage unit 32, and a voice reproduction control unit 125. The voice data storage unit 32 is a unit that stores voice data previously incorporated in the terminal device 4, and voice data recorded through wireless communication means, an external storage medium, a microphone attached to the terminal, etc. When the terminal state control unit 123 receives an operation input from the user and instructs reproduction of various voice data, the instruction is transmitted to the voice reproduction unit 31 via the voice reproduction control unit 125. The voice reproduction unit 31 reads out the specified voice data from the voice data stored in the voice data storage unit 32. The voice reproduction unit 31 outputs the read voice data to the voice output unit 113 to reproduce the voice.

19 has a configuration in which the vibration device 16 and the vibration panel 18 are vibrated using voice data as an output electric signal, but the frequency of the output electric signal may be a frequency at which humans perceive vibration (e.g., 5-20 Hz). In the above configuration, therefore, by storing, instead of voice data, data of a vibration pattern including that frequency band in the voice data storage unit 22, it becomes possible to notify the user of the fact by the vibration of the vibration panel 18. This vibration pattern is used, for example, for an incoming call vibrator on a mobile phone, or for force feedback to notify the user that an operation has been accepted when operating a touchpad/touch panel.
As a result, the input/output unit 11 according to the present embodiment can selectively use either vibration notification or pressure detection with one vibration device 16, thereby enabling the miniaturization and weight reduction of the terminal device 4. In addition, since the input/output unit 11 according to the present embodiment has a simple configuration as described above, it can be easily manufactured.

In the above-mentioned terminal device 2 or 3, the input/output unit 21 is described as having a switching unit 112 that controls input/output between the vibration element 26-2 and the pressure correction unit 114 or the audio output unit 213, but this is not limited to the present embodiment. In the present embodiment, the input/output unit 21 may also have a switching unit 112 that controls input/output between the vibration element 26-1 and the pressure correction unit 114 or the audio output unit 213.

In the above, an example has been described in which the vibration device 26 includes two vibration elements 26-1 and 26-2, but this is not limited to this in the present embodiment. In the present embodiment, the vibration device 26 may include three or more vibration elements. At least one of the vibration elements may include a switching unit 112 that controls input/output with the pressure correction unit 114 or the audio output unit 213.

In the above-mentioned input/output unit 21, the wraparound component may be subtracted from the output electrical signal input from the switching unit 112 to generate an input removal signal, and the generated input removal signal may be input to the pressure correction unit 114. The wraparound component is a component that contributes to the output electrical signal generated by the vibration element 26-2, the vibration generated based on the input electrical signal and transmitted to the vibration panel 18. The input/output unit 21 may further include, for example, a second switching unit 512, a wraparound synthesis unit 513, and a subtraction unit 514, as shown in the terminal device 5 in FIG. 20.

The second switching unit 512, like the switching unit 112, receives a switching signal from the switching control unit 122 and an input electrical signal from the audio output unit 213. However, if the input switching signal indicates that the output electrical signal from the audio output unit 213 is to be output to the vibration element 26-2, the second switching unit 512 outputs the input electrical signal to the wraparound synthesis unit 513. If the input switching signal indicates that the input electrical signal from the vibration element 26-2 is to be input to the pressure output unit 114, the second switching unit 512 blocks the input electrical signal.

The wraparound synthesis unit 513 synthesizes a wraparound component signal based on the input electrical signal input from the second switching unit 512. Here, for example, a wraparound characteristic coefficient is calculated in advance based on the wraparound component obtained as the output electrical signal in a state where no operation input is performed and the input electrical signal. The calculated wraparound characteristic coefficient is set in the wraparound synthesis unit 513. The wraparound synthesis unit 513 generates a wraparound component signal by filtering the input electrical signal with the set wraparound characteristic coefficient. The wraparound synthesis unit 513 outputs the synthesized wraparound component signal to the subtraction unit 514.
The subtraction unit 514 generates a feedback removed signal by subtracting the feedback component signal input from the feedback synthesis unit 513 from the output electrical signal input from the switching unit 112. The subtraction unit outputs the generated feedback removed signal to the pressure correction unit 114.

Additionally, in this embodiment, the switching unit 112 and the pressure amplifier 114 may be provided with a filter that removes voice band components (for example, 200 Hz to 4.0 kHz).
As a result, in this embodiment, when audio playback and operation input are performed simultaneously, it is possible to prevent a component due to vibration based on the played back audio from being erroneously acquired as pressure.

In addition, a part of the terminal device 1, 2, 3, 4 or 5 in the above-mentioned embodiment, for example, the switching unit 112, the decoding unit 15, the pressing correction unit 114, the position input unit 116, the communication control unit 121, the switching control unit 122, the terminal state control unit 123, the audio reproduction control unit 125, the second switching unit 512, the wraparound synthesis unit 513, and the subtraction unit 514 may be realized by a computer. In that case, a program for realizing this control function may be recorded in a computer-readable recording medium, and the program recorded in the recording medium may be read into a computer system and executed to realize the control function. In addition, the "computer system" here refers to a computer system built into the terminal device 1, 2, 3, 4 or 5, and includes hardware such as an OS and peripheral devices. In addition, the "computer-readable recording medium" refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, a CD-ROM, and a storage device such as a hard disk built into a computer system. Furthermore, the term "computer-readable recording medium" may include a medium that dynamically stores a program for a short period of time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, and a medium that stores a program for a certain period of time, such as a volatile memory inside a computer system that serves as a server or client in such a case. The above program may be one that realizes part of the above-mentioned functions, or may be one that can realize the above-mentioned functions in combination with a program already recorded in the computer system.
In addition, some or all of the terminal devices 1, 2, 3, 4, and 5 in the above-mentioned embodiment may be realized as an integrated circuit such as an LSI (Large Scale Integration). Each functional block of the terminal devices 1, 2, 3, 4, and 5 may be individually processed, or some or all of them may be integrated and processed. The integrated circuit method is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. In addition, if an integrated circuit technology that replaces LSI appears due to the advancement of semiconductor technology, an integrated circuit based on that technology may be used.

One embodiment of the present invention has been described in detail above with reference to the drawings, but the specific configuration is not limited to the above, and various design changes can be made without departing from the spirit of the present invention.

1, 2, 3, 4, 5... terminal device, 10... housing, 11, 21... input/output unit,
112: switching unit; 113, 213: audio output unit; 114: pressure correction unit;
115: pressure input unit, 116: position input unit, 117: adhesive,
12: control unit, 121: communication control unit, 122: switching control unit, 123: terminal state control unit,
125: Audio reproduction control unit; 13: Antenna unit; 14: Communication unit; 15: Decoding unit;
16, 26... Vibration device, 16-1, 26-1, 26-2... Vibration element,
161, 261-1, 261-1...piezoelectric elements,
162-1, 162-2, 262-1-1, 262-1-2, 262-2-1, 262-2-2...electrodes, 163...mold,
17: display unit, 18: vibration panel, 19: position detection unit, 31: audio playback unit, 32: audio data storage unit,
512: second switching unit, 513: wraparound synthesis unit, 514: subtraction unit

Claims (13)

a communication control unit that controls a state of communication between the device itself and another device;
an output unit that outputs an audio signal received from the other device ;
A vibration panel,
a vibration device attached to the vibration panel and having a function of converting a distortion caused by pressing the vibration panel into an electric signal and a function of generating vibration based on the audio signal;
A pressure detection unit that calculates the magnitude of the distortion based on the electrical signal;
a switching unit that switches between connecting the vibration device to the output unit and connecting the vibration device to the pressure detection unit;
a control unit that controls the switching unit to connect the vibration device to the output unit and output the vibration to the vibration panel when the communication state is a voice call state, and controls the switching unit to connect the vibration device to the pressure detection unit and output the electrical signal to the pressure detection unit when the communication state is a state other than the voice call state;
An input/output device comprising: The control unit outputs a switching signal to the switching unit to switch between connecting the vibration device to the output unit and connecting the vibration device to the pressure detection unit;
The input/output device according to claim 1 , wherein the switching unit switches between connecting the vibration device to the output unit and connecting the vibration device to the pressure detection unit based on the switching signal. The vibration device includes:
a first vibration element that transmits the vibration to the vibration panel;
A second vibration element that converts the distortion into the electrical signal and outputs the electrical signal;
The input/output device according to claim 2 . The second vibration element can also operate as a vibration element that transmits the vibration to the vibration panel,
The input/output device of claim 3, wherein the switching unit is connected to the second vibration element and, based on the switching signal, switches between connecting the vibration device to the output unit and inputting the audio signal from the output unit to the second vibration element, or connecting the vibration device to the pressure detection unit and outputting the electrical signal from the second vibration element to the pressure detection unit. an output unit that outputs an audio signal;
A vibration panel,
a vibration device including a first vibration element that generates vibrations based on the audio signal and transmits the vibrations to the vibration panel, and a second vibration element that generates vibrations based on the audio signal and has a function of transmitting the vibrations to the vibration panel and a function of converting distortion caused by pressing the vibration panel into an electrical signal and outputting the electrical signal, the first vibration element and the second vibration element being spaced apart from each other and disposed on the vibration panel;
A pressure detection unit that calculates the magnitude of the distortion based on the electrical signal;
a switching unit that switches between connecting the second vibration element to the output unit and connecting the second vibration element to the pressure detection unit;
a control unit that controls the switching unit to connect the second vibration element to the output unit to output the vibration to the vibration panel, or to connect the second vibration element to the pressure detection unit to output the electrical signal to the pressure detection unit;
An input/output device comprising: a position detection unit that detects position information indicating a position where the vibration panel is pressed;
a pressure correction unit that calculates a distortion at a position where the diaphragm panel is pressed based on the position information detected by the position detection unit and the magnitude of the distortion calculated by the pressure detection unit;
The input/output device of claim 1 further comprising: 7. The input/output device according to claim 6 , wherein the vibration panel is a panel or a protective plate of a display unit that displays an image. The input/output device according to claim 6 , wherein the vibration panel is a panel surface covering the position detection unit. 9. The input/output device according to claim 1, wherein the frequency band of the electrical signal includes a frequency band in which vibration can be perceived. An input/output method for an input/output device, comprising:
a step of connecting a vibration device attached to a vibration panel to a pressure detection unit when a communication state between the input/output device and another device is a state other than a voice call state , converting a distortion of the vibration panel caused by pressing the vibration panel into an electric signal by the vibration device, and calculating a magnitude of the distortion by the pressure detection unit based on the converted electric signal;
When the communication state is a voice call state, connecting the vibration device to an output unit, generating vibrations by the vibration device based on a voice signal received from the other device and outputting the voice signal from the output unit, and outputting the generated vibrations to the vibration panel;
Input/output methods including: An input/output method for an input/output device including a vibration device that includes a first vibration element that generates vibrations based on an audio signal and transmits the vibrations to a vibration panel, and a second vibration element that generates vibrations based on the audio signal and has a function of transmitting the vibrations to the vibration panel and a function of converting distortion caused by pressing the vibration panel into an electrical signal and outputting the electrical signal, the first vibration element and the second vibration element being spaced apart from each other and disposed on the vibration panel,
When the communication state between the device itself and the other device is a state other than a voice call state,
a step of connecting the second vibration element to a pressure detection unit, converting a distortion of the vibration panel caused by pressing the vibration panel into an electrical signal by the second vibration element, and calculating a magnitude of the distortion by the pressure detection unit based on the converted electrical signal;
When the communication state is a voice call state, connecting the second vibration element to an output unit, generating vibrations by the second vibration element based on a voice signal received from the other device and outputting the voice signal from the output unit, and outputting the generated vibrations to the vibration panel;
Input/output methods including: The input/output device of the computer
a step of connecting a vibration device attached to a vibration panel to a pressure detection unit when a communication state between the input/output device and another device is a state other than a voice call state , converting a distortion of the vibration panel caused by pressing the vibration panel into an electric signal by the vibration device, and calculating a magnitude of the distortion by the pressure detection unit based on the converted electric signal;
When the communication state is a voice call state, connecting the vibration device to an output unit, generating vibrations by the vibration device based on a voice signal received from the other device and outputting the voice signal from the output unit, and outputting the generated vibrations to the vibration panel;
A program for executing the above . a first vibration element that generates vibrations based on an audio signal and transmits the vibrations to a vibration panel; and a second vibration element that generates vibrations based on the audio signal and has a function of transmitting the vibrations to the vibration panel and a function of converting distortion caused by pressing the vibration panel into an electrical signal and outputting the electrical signal, the first vibration element and the second vibration element being spaced apart from each other,
a step of connecting the second vibration element to a pressure detection unit when a communication state between the input/output device and another device is a state other than a voice call state, converting a distortion of the vibration panel caused by pressing the vibration panel into an electrical signal by the second vibration element, and calculating a magnitude of the distortion by the pressure detection unit based on the converted electrical signal;
When the communication state is a voice call state, connecting the second vibration element to an output unit, generating vibrations by the second vibration element based on a voice signal received from the other device and outputting the voice signal from the output unit, and outputting the generated vibrations to the vibration panel;
A program for executing the above.

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