WO2016038852A1 - Input device provided with multiple touch switches, and host for controlling same - Google Patents

Abstract

The present disclosure provides an input device that restricts the execution of unintended operations in a case where multiple touch switches are used as the buttons of the input device. This input device is provided with: multiple buttons which include touch switches; and a control circuit that is electrically connected to the multiple buttons, and detects changes in the capacitance of the touch switches and outputs detection results. The control circuit does not output detection results when the touching of the touch switches of at least two buttons, from among the multiple buttons, is detected.

Description

Input device having a plurality of touch switches and host for controlling the same

This disclosure relates to an input device that operates a device using a plurality of touch switches and a host that controls the input device.

Entertainment systems that allow passengers to listen to music and video in their seats on the aircraft are in widespread use. Aircraft seats incorporating this system are equipped with input devices for adjusting the channels and volume of music programs and video programs to be provided. This input device includes a plurality of operation buttons for increasing / decreasing the volume and increasing / decreasing the channel. By pressing these buttons, a desired operation is executed (for example, see Patent Document 1).

International Publication No. 2008/011162

When a touch switch that detects a change in capacitance without a mechanical intermittent contact is used as a button on the input device, instead of a button with a mechanical intermittent contact, the capacitance change is detected by a simple touch of the user. Then, the operation is executed. Therefore, the user does not intend to execute the operation and touches the touch switch, so that a malfunction is likely to occur.

This disclosure provides an input device that suppresses unintended operations when a plurality of touch switches are used as buttons of the input device.

An input device according to one embodiment of the present disclosure includes a plurality of buttons including touch switches, a control circuit that is electrically connected to the plurality of buttons, detects a change in capacitance of the touch switches, and outputs a detection result And comprising. When the control circuit detects a touch of a touch switch of at least two buttons among the plurality of buttons, the control circuit does not output a detection result.

According to the input device according to an aspect of the present disclosure, it is possible to suppress the execution of an operation not intended by the user.

FIG. 1 is a perspective view of an input device according to an embodiment. FIG. 2A is a diagram for describing a guide and a user operation of the input device according to the embodiment. FIG. 2B is another diagram illustrating the guide of the input device according to the embodiment and the user's operation. FIG. 3A is a plan view illustrating dimensions of the input device according to the embodiment. 3B is a cross-sectional view taken along the line 3B-3B of FIG. 3A. FIG. 3C is a cross-sectional view corresponding to 3B-3B of FIG. 3A for explaining the configuration of the input device of the embodiment in more detail. FIG. 3D is an external view of the input device according to the embodiment. FIG. 4 is a diagram illustrating a system configuration of an AOD (Audio On Demand) service according to the embodiment. FIG. 4B is a diagram illustrating another configuration of the AOD service system according to the embodiment. FIG. 5 is a block diagram of the AOD service system according to the embodiment. FIG. 6 is a diagram illustrating still another configuration of the AOD service system according to the embodiment. FIG. 7 is a diagram illustrating a touch operation of an input device that does not have a function of invalidating a multi-touch operation. FIG. 8 is a diagram illustrating a touch operation of the input device according to the embodiment. FIG. 9A is a diagram illustrating a function of invalidating a multi-touch operation of the input device according to the embodiment. FIG. 9B is another diagram illustrating a function of invalidating the multi-touch operation of the input device according to the embodiment. FIG. 10 is a flowchart for invalidating the multi-touch operation of the input device according to the embodiment. FIG. 11 is a state transition diagram of three modes of the input device according to the embodiment. FIG. 12 is a diagram for explaining the state transition of the input device without the standby mode. FIG. 13 is a diagram illustrating state transition of the input device according to the present embodiment. FIG. 14 is a sequence diagram showing the operation of the input device without the standby mode. FIG. 15 is a sequence diagram illustrating an operation of the input device according to the embodiment. FIG. 16 is a diagram for explaining a change in luminance of a button of the input device according to the present embodiment. FIG. 17 is a diagram for explaining the operation of the display of the input device according to the embodiment. FIG. 18 is another diagram illustrating the operation of the display of the input device according to the embodiment.

(Embodiment)
Hereinafter, embodiments will be described in detail with reference to the drawings as appropriate. However, more detailed description than necessary may be omitted. For example, detailed descriptions of already well-known matters and repeated descriptions for substantially the same configuration may be omitted. This is to avoid the following description from becoming unnecessarily redundant and to facilitate understanding by those skilled in the art.

It should be noted that the accompanying drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the claimed subject matter.

[1. Constitution]
[1-1. Configuration of input device]
FIG. 1 is a perspective view of an input device 100 according to the present embodiment. The input device 100 is used as an operation terminal of an audio-on-demand (AOD) service for passengers such as aircraft. For example, the passenger uses the AOD service to select and view a desired channel from among a plurality of audio channels. The passenger operates the input device 100 to change the channel, adjust the volume, and change the channel track. The input device 100 is installed, for example, on an armrest of a passenger's seat.

Note that the input device 100 is not limited to the AOD service, and may be used for various other purposes such as video on demand (VOD) service, crew call, and reading lamp on / off control. Good.

The input device 100 according to the present embodiment has six buttons. The channel up button 120a executes channel up. The channel down button 120b executes channel down. The volume up button 130a increases the volume. The volume down button 130b executes a volume down. The track up button 140a executes track up. The track down button 140b executes track down.

These six buttons are not buttons having mechanical intermittent contacts, but are touch switches for detecting capacitance changes without mechanical intermittent contacts.

The six buttons of the input device 100 are arranged in three rows in the y-axis direction and two columns in the x-axis direction, as shown in FIG. As a channel switching button, a channel up button 120a is arranged in the third row and second column, and a channel down button 120b is arranged in the second row and second column. Further, as a volume control button, a volume up button 130a is arranged in the third row and first column, and a volume down button 130b is arranged in the second row and first column. Further, as a track switching button, a track up button 140a is arranged in the first row and the first column, and a track down button 140b is arranged in the first row and the second column.

The input device 100 further includes a display 110 in the y-axis direction in which six buttons are arranged. The display 110 is composed of two 7-segment displays. The 7-segment display is composed of seven parts, and the seven parts are lit and turned off to display numbers and some alphabets. The display 110 displays information such as a channel number, a volume level, and a track number as a result of the operation by the six buttons.

In addition, although the display 110 shall be comprised by two 7 segment displays, it is not restricted to this. Furthermore, the display 110 is not limited to a 7-segment display, and may be a liquid crystal display, for example.

Although not shown, the surface shape of each of the six buttons is a convex shape. This is to make it easier for the user to recognize the position of the button. If the button surface is convex, only one button can be touched even if the user's finger is large. The shape of the surface of each of the six buttons may be a concave shape.

Thus, by making the shape of the button surface convex or concave, it becomes easy to recognize the button area.

In the input device 100, the surface of the surface on which the six buttons and the display 110 are arranged is covered with a single panel 115. The panel 115 is formed of a transparent member such as plastic or glass. Covering with the panel 115 prevents entry of foreign matter such as water and dust into the gap between the buttons. That is, by covering with the panel 115, waterproofness can be improved and long-term reliability can be maintained.

In addition, the input device 100 is convex at the boundary between the channel up button 120a and the channel down button 120b, the boundary between the volume up button 130a and the volume down button 130b, and the boundary between the track up button 140a and the track down button 140b. A shaped separator 150 is provided. Providing the separator 150 makes it easy to understand the boundaries of the buttons, and can be operated without looking at the input device 100. Furthermore, since the separator 150 is provided at the boundary between two buttons for the same use such as volume control, the same use button can be easily recognized.

The separator 150 is not limited to a convex shape, and may be a concave shape. Furthermore, although there are three separators 150, the position and number are not limited to this.

A total of six convex guides 160 are provided on each side surface of the input device 100. The guide 160 is provided at the position of the button in the y-axis direction of the input device 100. The six guides 160 make it easy to grasp the positions of the six buttons and can be operated without looking at the input device 100. The guide 160 does not protrude in the z-axis direction of the input device 100, and protrudes on the plus side and the minus side of the input device in the x-axis direction. When the guide 160 has such a structure, it is difficult to cause inconveniences such as hooking clothes, hitting a user's finger against the guide, and hurting, or peeling off the coating on the surface of the input device 100.

Note that the guide 160 is not limited to a convex shape, and may be a concave shape.

2A and 2B are diagrams for explaining the operation of the guide 160 of the input device 100 and the user. For example, the user performs a channel down operation. As shown in FIG. 2A, first, the user traces the side of the input device 100 with a finger and searches for the guide 160 at the same position as the channel down button 120b. Next, as shown in FIG. 2B, with the guide 160 at the same position as the channel down button 120b as a base point, the finger is slid horizontally to reach the channel down button 120b.

Thus, by using the six guides 160 at positions corresponding to the positions of the six buttons, the user can easily and quickly search for a desired button.

FIG. 3A is a plan view for explaining dimensions of the input device 100 according to the present embodiment, and FIG. 3B is a cross-sectional view taken along 3B-3B in FIG. 3A. The input device 100 has a height of 70 mm, a width of 27.9 mm, and a thickness of 4.05 mm. The thickness is the thickness of the edge of the front cabinet 101 that is the outer frame of the input device 100. The panel 115 is within the thickness range of the front cabinet 101 except for the convex shape of the buttons. For this reason, there is no possibility of cutting a finger or the like at the end of the panel 115. In addition, since the end face of the panel 115 is not exposed, even if a fallen object such as a passenger's luggage collides with the input device 100, it is difficult to crack.

The convex part of the button protrudes from the thickness of the front cabinet 101. The protrusion amount is 0.5 mm. The radius of curvature of the convex portion is 16, 25 mm. Since the button has such a convex shape, it is easy to touch and operate.

It should be noted that if the protruding amount of the convex shape of the button becomes too large, the detection sensitivity of the capacitance change near the center of the convex shape portion decreases.

In the input device 100, icons representing the functions of the buttons printed on the back surface of the panel 115 appear large due to the lens effect of the convex portion of the six buttons.

The diameter of the convex part of the button is 8 mm. Among the six buttons, the center distance of the convex shape of two adjacent buttons is 11.25 mm in the y-axis direction and 11 mm in the x-axis direction. The center distance of the convex shape of two adjacent buttons is almost the same as the average size of an adult fingertip of about 11 mm. If the distance between the centers of the convex shapes of two adjacent buttons is 11 mm or more, the user is less likely to touch the two adjacent buttons at the same time.

In addition, the above-mentioned dimension is an example and the input device 100 of this Embodiment is not limited to these dimensions. The dimensions of the input device 100 may be appropriately changed according to the usage mode.

FIG. 3C is a cross-sectional view corresponding to 3B-3B in FIG. 3A for explaining the configuration of the input device 100 of the present embodiment in more detail. The input device 100 further includes a case 185, a touch switch 170, a light source 175, and a control circuit 180.

The case 185 stores wiring such as a power cable and a network cable of the input device 100. The case 185 has a thickness of 20 mm so that it can be easily attached to a seat of an aircraft passenger. Such an input device 100 for passengers of an aircraft is called a PCU (Passenger Control Unit).

Each of the six buttons includes a touch switch 170 and a light source 175. The touch switch 170 is a switch that detects a change in capacitance. The touch switch 170 is circular and has a diameter of 7.5 mm. The difference in size between the convex diameter of the button and the diameter of the touch switch may be within 10%, and either diameter may be large. The touch switch 170 is electrically connected to the control circuit 180.

The light source 175 is disposed on the back side of the touch switch 170. The light source 175 is, for example, a light emitting diode (LED: Light Emitting Diode). The light source 175 is electrically connected to the control circuit 180 and emits light with a luminance corresponding to an instruction from the control circuit 180. As a result, the icons of the six buttons are emitted.

The control circuit 180 is connected to a host described later via a network cable. The control circuit 180 detects a change in the capacitance of the touch switch 170. The control circuit 180 detects a “touch” in which an object such as a user's finger touches the button or a user's touch from a change in capacitance of the touch switch 170, and then “releases” the object such as the user's finger leaves the button. Can be detected.

FIG. 3D is an external view of the input device 100 according to the embodiment. The input device 100 is mainly installed on an armrest of a passenger seat of an aircraft.

The installation location of the input device 100 is not limited to the armrest of the passenger's seat, and may be installed anywhere on the seat. For example, the input device 100 may be installed directly on the wall of an aircraft. Furthermore, the input device 100 is not limited to an aircraft, and may be used for transportation means such as trains such as high-speed railways and automobiles such as high-speed buses.

[1-2. Configuration of AOD service system]
Next, the configuration of the AOD service system will be described. FIG. 4A is a diagram illustrating a system configuration of an AOD service. The AOD service system 400 includes an input device 100, a playback device 300 that plays back music, and a host 200 that controls the playback device 300 based on a signal from the input device 100.

The playback device 300 is provided, for example, in an aircraft seat and has a function of providing a user with a music program distributed from a distribution server (not shown). The playback apparatus 300 includes a music playback circuit that plays back music and a speaker.

Note that the playback device 300 is not limited to music, and may include a display for displaying video. Further, the playback apparatus 300 may be configured only by a music playback circuit and a speaker connection unit, and may be configured by connecting headphones to the speaker connection unit.

The host 200 is an information processing device or a computer that controls the playback device 300 in response to an input from the input device 100. In response to a signal input from the input device 100, the host 200 instructs the playback device 300 to change the channel, volume, and track. The host 200 also controls the light source 175 and the display 110 in the input device 100 in response to the input signal.

FIG. 4B is a diagram showing another configuration of the system of the AOD service according to the present embodiment. The AOD service system 401 includes a playback device 300 installed in each of four seats A, B, seats C and D, and a playback device corresponding to each of the input devices 100 and the signals from the four input devices 100. One host 201 that controls 300 is provided.

FIG. 5 is a block diagram of the AOD service system 400 shown in FIG. 4A. The AOD service system 400 includes an input device 100, a playback device 300, and a host 200.

As described above, the input device 100 includes the display 110, the six buttons, the channel up button 120a, the channel down button 120b, the volume up button 130a, the volume down button 130b, the track up button 140a, the track down button 140b, and the control circuit. 180. Each of the six buttons includes a touch switch 170 and a light source 175. The input device 100 further includes a communication circuit 190 for communicating with the host 200.

The communication circuit 190 is an interface compliant with a standard such as USB (Universal Serial Bus) 2.0. The input device 100 is connected to the host 200 via the communication circuit 190.

The control circuit 180 detects a touch or release based on the capacitance change of the touch switch, and transmits a key code to the host 200 via the communication circuit 190 as a signal corresponding to the touch or release.

The host 200 includes a communication circuit 210 that communicates with the input device 100 and the playback device 300, and a processor 220 that controls the playback device 300 and the input device 100 based on various signals input from the input device 100. The processor 220 performs various processes to be described later by executing a program stored in a memory (not shown). The communication circuit 210 includes an interface conforming to a standard such as USB 2.0, and communicates with the input device 100. The communication circuit 210 includes an interface such as Ethernet (registered trademark) and communicates with the playback device 300.

In the present embodiment, the input device 100 and the host 200 are described as different devices. However, the input device 100 may include the host 200.

FIG. 6 is a diagram showing still another configuration of the AOD service system according to the present embodiment. The AOD service system 402 includes an input device 600 including a host function and a playback device 700 that plays back music. The input device 600 controls the playback device 300 based on the capacitance change of the touch switch.

In the present embodiment, the playback device 300 and the input device 100 are different devices, and the playback device 300 and the host 200 are different devices. However, the input device 100 includes the playback device 300. Alternatively, the host 200 may include the playback device 300.

[2. Operation]
Hereinafter, operations of the input device 100 and the host 200 according to the present embodiment will be described.

[2-1. Disable multi-touch operation]
The input device 100 according to the present embodiment has a function of invalidating a multi-touch operation by a user. Multi-touch means that the user touches two or more buttons of the input device 100 at the same time, and the capacitance changes with two or more touch switches 170. If the time interval during which the user touches two or more buttons of the input device 100 is within a predetermined time, it is assumed that they are simultaneous. Single touch in contrast to multi-touch means that the user touches only one button of the input device 100 and the capacitance changes with one touch switch 170.

FIG. 7 is a diagram for explaining a touch operation of an input device that does not have a function of invalidating the multi-touch operation.

In FIG. 7, when the user performs a single touch operation on the input device, the input device notifies the host of a signal corresponding to the touched button, Key1. The host notifies the host of a signal corresponding to Key1. The host executes an operation corresponding to Key1. For example, when the channel down button is touched, the channel down is executed.

In FIG. 7, when the user performs a multi-touch operation on the input device, the input device notifies the host of signals corresponding to the touched two buttons, Key1 and Key2. The host performs an operation corresponding to Key1 and Key2. For example, when a channel down button and a track down button are touched, both channel down and track down are executed.

FIG. 8 is a diagram for explaining a touch operation of the input device 100 according to the present embodiment.

In FIG. 8, when the user performs a single touch operation on the input device 100, the input device 100 notifies the host of a signal corresponding to the touched one button, Key1. The host 200 notifies the host of a signal corresponding to Key1. The host executes an operation corresponding to Key1. For example, when the channel down button 120b is touched, the channel down is executed. This operation is the same as the operation described in FIG.

In FIG. 8, when the user performs a multi-touch operation on the input device 100, the input device 100 does not notify the host 200 of signals corresponding to the touched two buttons, Key1 and Key2. Further, when the input device 100 detects a multi-touch operation by the user, the input device 100 does not notify the host 200 of a signal corresponding to the user's touch operation until all buttons are released. As described above, the input device 100 has a function of invalidating the multi-touch operation by the user.

In the input device 100 according to the present embodiment, a signal corresponding to one touched button is transmitted to the host 200 only when the user performs a single touch operation on the input device 100. By controlling the operation in this way, it is possible to prevent an operation not intended by the user from being executed.

FIG. 9A is a diagram illustrating a function for invalidating the multi-touch operation of the input device 100 according to the embodiment. In FIG. 9A, when the input device 100 detects a multi-touch operation by the user, the control circuit 180 does not transmit a signal corresponding to the touched button to the host 200. Next, after detecting the multi-touch operation by the user, the control circuit 180 does not transmit a signal corresponding to the touched button to the host 200 even if the single-touch operation by the user is detected. After detecting the multi-touch operation by the user, the control circuit 180 detects the release operation by the user, all the buttons are in the release state, and when the single-touch operation by the user is detected, the touched button, A key code Key1 Press is transmitted to the host 200 as a signal corresponding to Key1.

FIG. 9B is another diagram illustrating a function for invalidating the multi-touch operation of the input device 100 according to the present embodiment. In FIG. 9B, the user accidentally slides his / her finger while performing a single touch operation, resulting in a multi-touch operation and a single-touch operation of another button. Show. The control circuit 180 detects a single touch operation by the user and transmits a key code Key1 Press as a signal corresponding to the touched button and Key1 to the host. After that, since the multi-touch operation by the user is detected, the control circuit 180 does not transmit a signal corresponding to the touched button. Thereafter, even if the control circuit 180 detects a single touch operation by the user, the control circuit 180 does not transmit a signal corresponding to the touched button, Key2, to the host 200. The control circuit 180 detects the release operation by the user, and when all the buttons are in the release state and then detects the single touch operation by the user, the control circuit 180 generates a key code Key2 as a signal corresponding to the touched button, Key2. Press is sent to the host 200.

Next, an operation for invalidating the multi-touch operation of the input device 100 will be described. FIG. 10 is a flowchart for invalidating the multi-touch operation of the input device 100 according to the embodiment.

(S1001) The multi flag (Multi Flag) of the memory included in the control circuit 180 of the input device 100 is set to 0, and the touch operation by the user is awaited.

(S1002) The control circuit 180 detects an operation from the user. If the operation from the user is a single-touch operation (single case), the process proceeds to S1003. If the operation is a multi-touch operation (multi-case), the process proceeds to S1005, which is a button release operation. If the button is in the release state (in the case of release), the process proceeds to S1006.

(S1003) The control circuit 180 confirms the setting of the multi-flag stored in the memory. If the multi flag is 0 (Yes), the process proceeds to S1004. If the multi flag is 1 (No), the process returns to S1002.

(S1004) The control circuit 180 transmits a signal corresponding to the touched button to the host 200.

(S1005) The control circuit 180 sets the multi-flag of the memory to 1.

(S1006) The control circuit 180 sets the multi-flag of the memory to 0.

As described above, the input device 100 has a function of invalidating the multi-touch operation, so that it is possible to prevent an unintended operation from being performed when the user erroneously performs the multi-touch operation. This is particularly effective when the distance between two adjacent buttons is shorter than the average fingertip length (about 11 mm) of an adult.

In this embodiment, the control circuit 180 of the input device 100 controls a signal to be transmitted to the host 200 according to the presence or absence of the multi-touch operation. However, the host 200 invalidates the multi-touch operation. You may comprise. The host having the function of invalidating the multi-touch operation controls the operation of the playback device 300 in response to the notification regarding the detection of the user operation of the input device. Specifically, when a multi-touch operation is notified from the input device, the playback device 300 is controlled not to operate until a release operation is notified from the input device.

[2-2. Standby mode]
The input device 100 and the host 200 according to the present embodiment operate in three modes. The first mode is a dimming mode in which the luminance of the display 110 and the plurality of light sources 175 is suppressed. In the second mode, the signal corresponding to the button in which the touch operation is detected among the six buttons is not notified to the host 200, and the luminance of the light source 175 of the corresponding button is made higher than the luminance in the dimming mode. It is in standby mode. The third mode is an operation mode for notifying the host 200 of a signal corresponding to a button in which a touch operation is detected.

FIG. 11 is a state transition diagram of three modes of the input device according to the embodiment. In the dimming mode, when the user performs a single touch operation, the mode transits to the standby mode. When the user performs a single touch operation in the standby mode, the mode is changed to the operation mode. In the standby mode and the operation mode, when the user does not perform an operation and a predetermined time (for example, 5 seconds) set in advance elapses, the mode changes to the dimming mode.

FIG. 12 is a diagram for explaining the state transition of the input device without the standby mode, and FIG. 13 is a diagram for explaining the state transition of the input device according to the present embodiment.

In FIG. 12, when the input device detects a touch operation by the user in the dimming mode, the input device notifies the host of a signal corresponding to the touch operation, and the host increases the brightness of the display of the input device and operates the playback device. Transition to the operation mode that controls to execute.

On the other hand, the input device 100 of the present embodiment has a standby mode as shown in FIG.

When the input device 100 detects a touch operation by the user in the dimming mode, the input device 100 transitions to the standby mode. The input device 100 transmits a signal corresponding to the touch operation to the host 200. The host 200 that has received the signal instructs the input device 100 to increase the brightness of the light sources 175 of all buttons. In response to the instruction, the control circuit 180 of the input device 100 increases the luminance of all the light sources 175.

After that, the input device 100 detects the release operation by the user in the standby mode, and transitions to the operation mode when the touch operation is detected. The input device 100 transmits a signal corresponding to a user operation to the host 200. The host 200 that has received the signal instructs the input device 100 to increase the brightness of the display 110. In parallel with this, the playback apparatus 300 is instructed to execute the function of the playback apparatus 300 corresponding to the user's operation.

FIG. 14 is a sequence diagram showing the operation of the input device without the standby mode. FIG. 15 is a sequence diagram illustrating an operation of the input device 100 according to the present embodiment. As a user operation, a channel up operation is shown. The user's operation is the same sequence for other operations. As shown in FIG. 15, even if a user operation (channel up) is performed in the dimming mode (Dimming), a transition is made to the standby mode, and the user operation (channel up) is performed only when the display brightness increases (Bright). ) Is not executed. When the user performs a release operation and performs a touch operation again in the standby mode, the operation mode is changed to an operation corresponding to the touch operation. For this reason, execution of the operation | movement with respect to the operation of an unintended user's touch can be prevented.

In this embodiment, after a predetermined time has elapsed in the operation mode, the mode changes to the dimming mode. Since the operation returns to the dimming mode without going through the standby mode, it is easy to prevent the execution of an operation for an unintended user operation.

[2-3. Change button brightness]
In the operation mode, the input device 100 according to the present embodiment controls the light source 175 of the touch-operated button to emit light with high luminance.

FIG. 16 is a diagram for explaining a change in the brightness of the buttons of the input device 100 according to the present embodiment. First, in the dimming mode, the display 110 displays information on the selected channel. At this time, the luminance of the display 110 and the luminance of the six light sources 175 are set to 1% of the maximum luminance. Here, when the touch operation of any button is executed by the user, the mode is changed to the standby mode, and the brightness of the display 110 and the brightness of the six light sources 175 are changed to 10% of the maximum brightness. When the user performs a touch operation on one button in the standby mode, the operation mode is changed, and the processor 220 in the host 200 changes the luminance of the light source 175 of the touch-operated button to 99%.

With such a function, visual feedback can be given in the input device 100 of the present embodiment. Thereby, the user can easily understand the operation status. In the input device according to the present embodiment, in which buttons are configured by touch sensors, unlike the conventional input device having mechanical buttons, this function is effective because it is difficult to understand the operation.

Note that in a conventional input device having a mechanical button, it is difficult to arrange a light source such as an LED directly under the button, and it is difficult to reduce the size. In the present embodiment, since the button is configured by the touch sensor, a light source such as an LED can be disposed immediately below the button, and this function can be realized.

Note that the above brightness setting is merely an example, and other brightness settings may be used.

FIG. 17 is a diagram for explaining the operation of the display 110 of the input device 100 according to the present embodiment. In FIG. 17, the input device 100 is initially set to channel “01”, track “09”, and volume “10”. With this setting, when the user touches the channel up button, a transition is made to the standby mode. If the same button is further touched in the standby mode, the mode is changed to the operation mode. At this time, the processor 220 changes the display of the channel on the display 110 to “02” and instructs the input device 100 to increase the luminance of the light source 175 of the touched button. Thereafter, when 5 seconds have elapsed, the processing returns to the dimming mode, and the processor 220 decreases the luminance of the display 110 and all the light sources 175.

FIG. 18 is a diagram for explaining the operation of the display of the input device 100 according to the present embodiment. In FIG. 18, the input device 100 is initially set to channel “01”, track “09”, and volume “10”. With this setting, when the user touches the track up button, a transition is made to the standby mode. If the same button is further touched in the standby mode, the mode is changed to the operation mode. At this time, the processor 220 changes the display on the display 110 to track information “10” instead of channel information, and instructs the input device 100 to increase the luminance of the light source 175 corresponding to the touched button. . Thereafter, when 5 seconds have elapsed, the processing returns to the dimming mode, and the processor 220 reduces the brightness of the display 110 and all the light sources 175, and returns the display on the display 110 to the channel information “01”.

As described above, in this embodiment, only the channel information is always displayed on the display 110 in the dimming mode and the standby mode. Other information, that is, the volume and the track number are displayed only when the setting is changed in the operation mode. In other words, only immediately after the operation is displayed so that the operation content can be understood. By such an operation, the display in the dimming mode is fixed to the channel information regardless of the latest operation content, so that the user can easily recognize the operation status.

In this embodiment, since the display 110 is configured by two 7-segment displays that display in a single color, such an operation is adopted. However, when using other types of displays, other The method may be adopted. For example, if channel information, volume information, and track information can be expressed by different colors, the type of information can be determined by color, so it is necessary to return the display to channel information when transitioning from the operation mode to the dimming mode. Absent.

The input device according to the present embodiment may execute all of the above operations or may be configured to execute a part thereof. For example, only a function for invalidating a multi-touch operation may be executed. Furthermore, the configuration of the input device according to the present embodiment may be appropriately selected and configured.

The input device of the present disclosure can be used for operation of equipment such as an audio or video playback device in an aircraft or a railway vehicle, for example.

100,600 input device 101 front cabinet 115 panel 110 display 120a channel up button 120b channel down button 130a volume up button 130b volume down button 140a track up button 140b track down button 150 separator 160 guide 170 touch switch 175 light source 180 control circuit 185 case 190 Communication circuit 200, 201 Host 210 Communication circuit 220 Processor 300, 700 Playback device 400, 401, 402 AOD service system

Claims (8)

A plurality of buttons including touch switches;
A control circuit that is electrically connected to the plurality of buttons, detects a change in capacitance of the touch switch, and outputs a detection result;
The control circuit includes:
When a touch of the touch switch of at least two of the buttons is detected, a detection result is not output.
Input device. The control circuit includes:
Detecting a touch of the touch switch of at least two of the buttons;
Detecting the release of the touch switch of all the buttons among the plurality of buttons;
When the touch of the touch switch of one of the buttons is detected, the detection result is output.
The input device according to claim 1. The button is convex.
The input device according to claim 1. The interval between two adjacent buttons is 11 mm or more.
The input device according to claim 1. A plurality of buttons including touch switches;
A control circuit that is electrically connected to the plurality of buttons, detects a change in capacitance of the touch switch, and controls an operation corresponding to the detection result;
The control circuit includes:
When a touch of the touch switch of at least two of the buttons is detected, an operation corresponding to the detection result is invalidated.
Input device. The control circuit includes:
Detecting a touch of the touch switch of at least two of the buttons;
Detecting the release of the touch switch of all the buttons among the plurality of buttons;
The input device according to claim 5, wherein when a touch of the touch switch of one of the plurality of buttons is detected, an operation corresponding to the detection result is controlled. A host for controlling an input device including a plurality of buttons,
A communication circuit for receiving notification of a touch of the button of the input device;
A processor for controlling an operation corresponding to the notification,
The processor is
When the notification is a touch of at least two buttons of the input device, an operation corresponding to the notification is not performed.
host. The processor is
Receiving a touch notification of at least two of the buttons of the input device;
Receive notification of release of all the buttons of the input device,
When a notification of touching one of the buttons of the input device is received, an operation corresponding to the notification is performed.
The host according to claim 7.

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