Headphone device and wearable device

Abstract

A wearable device equipped with a pair of airflow control units or fan units provided respectively to the ears of a wearer, said wearable device controlling the airflow control units or fan units on the basis of an airflow control instruction received from an information processing device 1, and causing the wearer to sense airflow at the auricle.

Description

Headphone device and wearable device

[0001] The present invention relates to a headphone device and a wearable device that are worn by a wearer.

[0002] In recent years, devices that present airflow to viewers of movies and other media to enhance the sense of realism have become widely used. Such devices are placed near the chairs where viewers sit in movie theaters, for example, and respond to signals output in conjunction with the progress of the movie by driving large fans facing the viewers to present the airflow to the viewers.

[0003] However, such devices are large and not portable, and it is difficult to present different airflows to each individual, limiting their applications.

[0004] The present invention has been made in consideration of the above-described circumstances, and one of its objects is to provide a headphone device and a wearable device that can be worn by a user and that can present an airflow to the user wearing the headphone device and a wearable device.

[0005] One aspect of the present invention that solves the problems of the above-mentioned conventional examples is a headphone device having a pair of housing units provided corresponding to each ear of the wearer, each housing unit including ear pads that form an air chamber that covers the ear, a speaker unit disposed within this air chamber, and an airflow control unit that controls the airflow within the air chamber.

[0006] Another aspect of the present invention is a wearable device comprising a mounting member that can be attached to the head or neck of a wearer, a pair of fan units provided corresponding to each ear of the wearer, and a control circuit that receives information from an information processing device and controls the fan units, and the control circuit that drives and controls each of the pair of fan units based on the information received from the information processing device.

[0007] According to the present invention, the device can be worn by a user and can present an airflow to the user wearing it.

[0008] Fig. 1 is a schematic perspective view illustrating an example of a headphone device according to an embodiment of the present invention. Fig. 2 is a schematic cross-sectional view of a housing unit of a headphone device according to an embodiment of the present invention. Fig. 3 is a block diagram illustrating an example configuration of a control circuit unit of a headphone device according to an embodiment of the present invention. Fig. 4 is a schematic explanatory diagram illustrating an example of a wearable device according to an embodiment of the present invention. Fig. 5 is a block diagram illustrating an example configuration of a control circuit unit of a wearable device according to an embodiment of the present invention. Fig. 6 is an explanatory diagram illustrating an example operation of a fan unit in a wearable device according to an embodiment of the present invention.

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A wearable device according to an embodiment of the present invention is realized as a headphone device 10, as shown in FIG.

[0010] The headphone device 10 includes a pair of housing units 20L, 20R, a pair of housing units 20 (hereinafter, when there is no need to distinguish between the housing units 20L, 20R, they will be referred to as housing units 20), a wearing member 30 that is fixed to the head of a user (wearer), and a control circuit section 40. The headphone device 10 is also connected to an information processing device 1 via wire or wirelessly so as to be able to communicate with the information processing device 1.

[0011] Fig. 2 is a schematic cross-sectional view of the housing unit 20. Fig. 2 shows a cross section taken along a plane parallel to the coronal plane of a user wearing the headphone device 10. The housing unit 20 is made of a material such as plastic and includes an exterior body 20B having a substantially hollow hemispherical shape, ear pads 21 arranged along openings in the exterior body 20B and forming air chambers A that cover the ears of the wearer, a speaker unit 22 arranged in the air chambers A, and an airflow control unit 23 that controls the airflow in the air chambers A.

[0012] The control circuit section 40 of the headphone device 10 may also be housed in one of the housing units 20L, 20R.

[0013] In the example of Figure 2, the airflow control unit 23 has a pair of openings P and Q arranged in opposite positions across the wearer's ears in air chamber A, and is equipped with an air flow path 231 formed outside air chamber A to connect these openings P and Q to each other, and a fan unit 232 arranged within this air flow path 231 to form an airflow in at least one direction within this air flow path 231, and this fan unit 232 controls the airflow within air chamber A.

[0014] However, this is just one example, and the airflow control unit 23 is not limited to the example in FIG. 2 and may be any type as long as it can present an airflow to at least a part of the wearer's ear (pinna).

[0015] 3A, the control circuit 40 includes a control unit 41, a storage unit 42, a peripheral interface unit 43, and a communication unit 44. The control unit 41 is a program-controlled device such as a microcomputer, and operates according to a program (firmware) stored in the storage unit 42. In this embodiment, the control unit 41 generates an audio signal from audio information received from the information processing device 1, and controls the speaker units 22 disposed in each of the housing units 20L and 20R to emit sounds (for this reason, the control circuit 40 and each speaker unit 22 are electrically connected).

[0016] One of the features of this embodiment is that the control section 41 controls the airflow control unit 23. An example of this control will be described later.

[0017] The storage unit 42 is a memory device that stores the program executed by the control unit 41 and also operates as a work memory for the control unit 41. This program may be provided by being stored in a computer-readable, non-transitory recording medium and may be copied to the storage unit 42.

[0018] The peripheral interface section 43 is electrically connected to the airflow control unit 23. This peripheral interface section 43 receives instructions to control the airflow control unit 23 from the control section 41, and controls the airflow control units 23 arranged in each of the housing units 20L, 20R in accordance with the instructions. An example of this control will also be described later.

[0019] The communication unit 44 is communicably connected to the information processing device 1 via a wired interface such as a Universal Serial Bus (USB) or a wireless interface such as Bluetooth (registered trademark). The communication unit 44 receives audio information from the information processing device 1 and outputs it to the control unit 41. The communication unit 44 also receives instructions for controlling the airflow (airflow control instructions) input from the information processing device 1 and outputs them to the control unit 41. The communication unit 44 may also send various information to the information processing device 1 in accordance with the instructions input from the control unit 41.

[0020] Next, an example of the control operation of the airflow control unit 23 by the control circuit section 40 will be described. In this embodiment, the headphone device 10 includes the airflow control unit 23 shown in Fig. 2. The control section 41 of the control circuit section 40 accepts an airflow control instruction received by the communication section 44 from the information processing device 1.

[0021] Here, the airflow control instruction may be, for example, binary information indicating whether the airflow is on or off, or information indicating the strength of the airflow (flow rate per unit time).Furthermore, the airflow control instruction may be information for changing the strength of the airflow over time.

[0022] In accordance with the received airflow control instruction, the control unit 41 controls the amount of current supplied to the fan unit 232 of the airflow control unit 23 to drive the fan of the fan unit 232. The fan unit 232 then generates an airflow in the airflow path 231 and controls the airflow in the air chamber A that communicates with the airflow path 231.

[0023] [Operation] The headphone device 10, which is an example of a wearable device according to this embodiment, basically has the above-described configuration and operates as follows: In the following example, it is assumed that the information processing device 1 is executing a game program and that a player of the game is wearing the headphone device 10.

[0024] In addition, in this game program, airflow control information to be output for each game scene is stored in association with the game scene. In this example, the game progresses through the player's operations, and each time the game scene changes, the information processing device 1 acquires airflow control information associated with the new game scene. The information processing device 1 then transmits the acquired airflow control information to the headphone device 10 worn by the player.

[0025] The headphone device 10 turns on or off the fan unit 232 of the airflow control unit 23 based on the airflow control information received from the information processing device 1. For example, in a game in which the player shuttles between an indoor game scene associated with airflow control information indicating that the airflow should be turned off and an outdoor game scene associated with airflow control information indicating that the airflow should be turned on, while the player's character is indoors, the headphone device 10 receives airflow control information indicating that the airflow should be turned off from the information processing device 1 and turns off the fan unit 232 of the airflow control unit 23. At this time, the airflow in the air chamber A of the headphone device 10 stagnates, and the player's ears do not sense the airflow. Furthermore, when the player's character moves outdoors, the information processing device 1 sends airflow control information indicating that the airflow should be turned on, and the headphone device 10 receives this airflow control information and turns on the fan unit 232 of the airflow control unit 23. This generates an air current in the air chamber A of the headphone device 10, and the player feels as if wind is blowing against his ears.

[0026] In this way, in this example of the present embodiment, scenes in which the user feels airflow and scenes in which the user does not feel airflow can be presented as the game progresses.

[0027] [Reduction of Fan Noise] Furthermore, the control circuit unit 40 of the headphone device 10, which is an example of a wearable device according to this embodiment, may further include a detection unit 45 in addition to the control unit 41, the memory unit 42, the peripheral interface unit 43, and the communication unit 44, as illustrated in FIG. 3(b).

[0028] This detection unit 45 may include a pair of microphone units 451L, 451R that are arranged within each housing unit 20L, 20R closer to the fan unit 232 of the airflow control unit 23 than the speaker unit 22 and detect the sound generated by the fan unit 232.

[0029] For example, the microphone unit 451 in this example (which will be referred to as such when there is no need to distinguish between microphone units 451L and 451R) may be arranged in the air flow path 231 within the corresponding housing unit 20 (whether to arrange it upstream or downstream of the airflow generated by the fan unit 232 may be determined experimentally as appropriate).

[0030] In this example, the control unit 41 acquires, from the microphone units 451L and 451R in each of the housing units 20L and 20R, audio signals (referred to as an L-side noise signal and an R-side noise signal, respectively) representing sounds detected by the respective microphone units 451L and 451R. When generating an audio signal from audio information received from the information processing device 1, the control unit 41 corrects the audio signal by delaying by a predetermined time an audio signal that is in the opposite phase to the L-side noise signal to activate the speaker unit 22L in the housing unit 20L, and outputs the corrected audio signal to the speaker unit 22L to activate the sound based on the corrected audio signal.

[0031] Similarly, the control unit 41 corrects the generated audio signal by delaying an audio signal that is in opposite phase to the R-side noise signal by a predetermined time and adding it to the audio signal that activates the speaker unit 22R in the housing unit 20R, and outputs the corrected audio signal to the speaker unit 22R to produce audio based on the corrected audio signal. The delay time may differ depending on whether the audio signal is to be output to the left or right speaker unit 22L, 22R, and may be determined experimentally or adjustable by the user. When the user adjusts the delay time, the user may instruct the setting via the information processing device 1.

[0032] According to this example of the present embodiment, the fan noise (such as the fan motor noise) of the fan unit 232 can be canceled, reducing the chances that the user who wears the earphone will hear unintended noise.

[0033] [Correction of Audio Information According to Fan Rotation Speed] The reduction of fan noise is not limited to the use of a microphone as described above. In another example of the present embodiment, the detection unit 45 may include, in addition to the microphone unit 451, a rotation speed detector 452 that acquires information related to the rotation speed of the fan, such as a rotary encoder that detects the amount of current supplied to the motor that drives the fan of the fan unit 232 and the rotation speed of the motor.

[0034] In this example, the control unit 41 acquires audio signals (referred to as L-side noise signals and R-side noise signals, respectively) representing the sounds detected by the microphone units 451L and 451R in each housing unit 20L and 20R, and also acquires information related to the rotation speeds of the fan motors of each fan unit 232L and 232R (referred to as L-side rotation speed information and R-side rotation speed information, respectively, below).

[0035] When the control unit 41 generates an audio signal from the audio information received from the information processing device 1, it uses the L-side noise signal and the L-side rotation speed information to generate an audio signal that is the opposite phase to the fan sound of the fan unit 232L (L-side antiphase sound) from the generated audio signal that activates the speaker unit 22L in the housing unit 20L, delays the generated L-side phase sound by a predetermined time, adds it, corrects the audio signal, and outputs it to the speaker unit 22L to activate an audio signal based on the corrected audio signal.

[0036] Similarly, the control unit 41 uses the R-side noise signal and R-side rotation speed information to generate a sound (R-side anti-phase sound) that is in the opposite phase to the fan sound of the fan unit 232R, among the generated audio signals, for sounding the speaker unit 22R in the housing unit 20R, delays the generated R-side phase sound by a predetermined time, adds it, corrects the audio signal, and outputs it to the speaker unit 22R to sound an audio signal based on the corrected audio signal.

[0037] In this example, the delay time may also be different depending on whether the audio signal is to be output to the left or right speaker unit 22L or 22R, and may be determined experimentally or may be adjustable by the user. When the user adjusts the delay time, the user may instruct the setting via the information processing device 1.

[0038] According to this example of the present embodiment, the fan noise (such as the fan motor noise) of the fan unit 232 can be canceled, reducing the chances that the user who wears the earphone will hear unintended noise.

[0039] In generating the antiphase sound, for example, the intensity of the corresponding noise signal may be corrected based on the corresponding rotation speed information (for example, the greater the rotation speed indicated by the rotation speed information, the greater the correction to the intensity of the noise signal).

[0040] Furthermore, when the rotation speed detector 452 that detects the rotation speed of the motor is provided in this manner, the microphone unit 451 is not necessarily required, and when the microphone unit 451 is not provided, the antiphase sound may be estimated and found according to information related to the rotation speed. This estimation method is not limited, and the estimation may be performed by changing the intensity of white noise according to the rotation speed, or may be performed using a machine learning model or the like.

[0041] [Another Shape of Wearable Device] The wearable device according to the example of this embodiment may be realized as a headphone device 10, or may be fastened to the head or neck of the wearer, as in the following example. A wearable device 50 according to another example of this embodiment may be a headgear device fastened to the head of a user H, as exemplified in FIG. 4( a), or may be a neckband-like device fastened to the neck of a user, as exemplified in FIG. 4( b). In the example of FIG. 4( a), a cap-like member secured to the user's head corresponds to the wearing member, and in the example of FIG. 4( b), a crescent-shaped member fastened to the user's neck corresponds to the wearing member 51. The example of FIG. 4( b) will be used for the following explanation.

[0042] As illustrated in Figure 4(b), the wearable device 50 in this example is composed of at least a crescent-shaped attachment member 51 that is attached to the area from the back of the user's neck (nape) to the left and right sides of the neck, a pair of fan units 52L, 52R that are provided corresponding to each ear of the wearer, and a control circuit unit 53.

[0043] Here, as illustrated in Figure 4 (b), the attachment member 51 is formed to include a central portion 511 that contacts the back of the user's neck, a left wing portion 512L that extends from this central portion 511 along the user's neck to its left side, and a right wing portion 512R that extends from the central portion 511 along the user's neck to its right side.

[0044] A portion of the wing portions 512L, 512R on the central portion 511 side may be capable of entering the central portion 511 by a desired length by the user, and may be capable of being fixed at a position where the desired length has entered. This makes it possible to adjust the distance between the wing portions 512L, 512R, and allows the user to adjust the attachment member 51 to fit the diameter of their neck.

[0045] The fan units 52L, 52R each include a fan that generates an airflow in a predetermined blowing direction and are attached to the wing portions 512L, 512R of the wearing member 51 via joints 521L, 521R, respectively. The joints 521L, 521R may be rotatable within a predetermined angular range, with at least an axial direction toward the user's neck as the rotation axis. When the fan units 52L, 52R blow air in the direction of rotation that is rotatable about the axial direction, the user adjusts the rotation angle of the joints 521L, 521R so that the airflows generated by the fan units 52L, 52R hit their left and right ears, respectively. However, this is just one example, and the angles of the fan units 52L, 52R may be fixed so that the airflows generated by the fan units 52L, 52R hit the left and right ears of an average adult wearing the wearable device 50.

[0046] The fan units 52L and 52R each rotate the fan in accordance with an instruction input from a control circuit section 53, which will be described later, to generate an air current.

[0047] As illustrated in FIG. 5, the control circuit section 53 includes a control section 531, a storage section 532, and a communication section 533.

[0048] The control unit 531 in this example of the present embodiment is a program-controlled device such as a microcomputer, and operates according to a program (firmware) stored in the storage unit 532. The control unit 531 in this example of the present embodiment controls the fan units 52L, 52R according to instructions input from the information processing device 1. An example of this control will be described later.

[0049] The storage unit 532 is, for example, a memory device, and in addition to holding the program executed by the control unit 531, operates as a work memory for the control unit 531. This program may be provided by being stored in a computer-readable, non-transitory recording medium, and may be copied to the storage unit 532.

[0050] The communication unit 533 is communicably connected to the information processing device 1 via a wired interface such as a Universal Serial Bus (USB) or a wireless interface such as Bluetooth (registered trademark). The communication unit 533 receives instructions for controlling the airflow (airflow control instructions) input from the information processing device 1 and outputs them to the control unit 531. The communication unit 533 may also send various information to the information processing device 1 in accordance with the instructions input from the control unit 531.

[0051] Next, an example of the control operation of the fan units 52L, 52R by the control unit 531 will be described. In the example of the present embodiment, as in the case of the headphone device 10, the airflow control instruction may be, for example, binary information indicating whether the airflow is on or off, or information indicating the strength of the airflow (flow rate per unit time). The airflow control instruction may also be information that changes the strength of the airflow over time.

[0052] In accordance with the received airflow control instruction, the control unit 531 controls the amount of current supplied to each of the fan units 52L, 52R to drive or brake the fans of the fan units 52L, 52R. When the fans are driven, the fan units 52L, 52R generate airflows that are directed at at least a part of the user's ear (auricle), allowing the user to feel the airflow.

[0053] [Adjusting the Airflow Direction] In wearable device 50 that is fastened to the back of the neck as in this example, the airflow direction of fan units 52L, 52R and the position of the user's ears change depending on the orientation of the wearer's head. Therefore, in one example of the present embodiment, actuators may be provided on joints 521L, 521R, and control unit 531 may be able to control the airflow direction of fan units 52L, 52R.

[0054] In this example, the axis (normal to the coronal plane) pointing in the direction of the user's head (the front of the body, i.e., from the center of the back of the neck where the wearable device 50 is attached to the front of the user) is defined as the Z axis, the normal direction from the feet to the head in the cross-sectional plane is defined as the Y axis, and the normal direction from the left to the right of the user in the sagittal plane is defined as the X axis, and information on the rotation angle θ from the Z axis when the user's head rotates around the Y axis is obtained.

[0055] This rotation angle θ may be obtained, for example, by connecting a camera to the information processing device 1 to capture an image of the user and estimating the direction of the user's head based on the captured image, or by employing any of various other well-known methods for detecting the direction of the user's head.

[0056] When the information processing device 1 obtains information about the rotation angle θ, the information processing device 1 generates information representing the rotation angles of the joints 521L and 521R based on the information representing the rotation angle θ. For example, the information processing device 1 defines the range of the rotation angle θ of the user's neck as between -180 degrees and 180 degrees (the counterclockwise direction when viewed from above on the Y axis is the positive angle), and determines the rotation angle ΦL of the joint 521L (when viewed from the negative direction of the X axis to the positive direction, the counterclockwise direction around the X axis is the positive direction, and the Z axis direction is 0 degrees) as ΦL = -α × θ + β. Similarly, the rotation angle ΦR of the joint 521R (when viewed from the positive direction of the X axis to the negative direction, the counterclockwise direction around the X axis is the positive direction, and the Z axis direction is 0 degrees) as ΦR = -α × θ + γ. Note that α, β, and γ are determined experimentally as appropriate. Here, β and γ may be the initial positions when the user's head is facing forward (in the Z-axis direction) (the tip of the nose is facing in the Z-axis direction), i.e., they may be adjusted so that the airflow direction of each fan unit 52L, 52R hits the corresponding ear pinna at that time. In this example, when the user faces their head forward (in the Z-axis direction), θ = 0, and therefore ΦL = β, ΦR = γ. Then, as shown in FIG. 6( a), when the user turns their head to the left without changing their body orientation (θ > 0), ΦL and ΦR are tilted by −αθ (this value becomes negative) from the initial angles β and γ, respectively. In other words, the rotation angle of joint 521L rotates clockwise around the X-axis when viewed from the negative direction of the X-axis to the positive direction, following the movement of the left ear. Similarly, the rotation angle of joint 521R rotates clockwise around the X-axis when viewed from the negative direction of the X-axis to the positive direction, following the movement of the right ear.

[0057] Conversely, as shown in Figure 6(b), if the user turns their head to the right (θ<0) without changing the orientation of their body, ΦL and ΦR are tilted by -αθ (this value becomes positive) from the initial angles β and γ, respectively. At this time, the rotation angle of joint 521L rotates counterclockwise around the X axis when viewed from the negative direction to the positive direction of the X axis, following the movement of the left ear. Similarly, the rotation angle of joint 521R rotates counterclockwise around the X axis when viewed from the negative direction to the positive direction of the X axis, following the movement of the right ear.

[0058] [Additional Configuration Provided to Contact Portion] Furthermore, an element (such as a Peltier element) that heats or absorbs heat at the contact portion that comes into contact with the wearer of headphone device 10 or wearable device 50 of the present embodiment may be provided. Furthermore, headphone device 10 or wearable device 50 may include a vibrator (vibration element) within its housing.

[0059] In the case of the headphone device 10, a band may be placed around the back of the neck of the wearer to form the contact portion. At least a portion of this band comes into contact with the back of the neck of the wearer when the headphone device 10 is worn. In this example, an element that heats or absorbs heat at the contact portion is placed on the band at the position that comes into contact with the back of the neck of the wearer.

[0060] Furthermore, for example, in the case of a wearable device 50 that is fastened to the back of the neck of the wearer, an element that heats or absorbs heat from the contact portion is disposed on the side of the central portion 511 that comes into contact with the back of the neck of the wearer, as illustrated in Figure 4(b).

[0061] In these examples, the headphone device 10 or the wearable device 50 uses the above element to heat or absorb heat from the contact portion in accordance with instructions input from the information processing device 1. The information processing device 1 makes the wearer of the headphone device 10 or the wearable device 50 feel an airflow at the auricle, and can also use the element to make the wearer feel a sensation of warmth or coolness.

[0062] Furthermore, even when a vibration element is provided, the headphone device 10 or the wearable device 50 controls the vibration waveform presented to the wearer, such as the vibration amount and duration of the vibration of the vibration element, in accordance with instructions input from the information processing device 1.

[0063] According to this embodiment, the device is configured to allow the wearer to sense the airflow in their auricle, so that a relatively small device that can be worn by the user can present the wearer with an airflow that is determined for each wearer.

[0064] 1 Information processing device, 10 Headphone device, 20 Housing unit, 21 Ear pad, 22 Speaker unit, 23 Airflow control unit, 30, 51 Wearing member, 40, 53 Control circuit unit, 41, 531 Control unit, 42, 532 Memory unit, 43 Peripheral interface unit, 44, 533 Communication unit, 45 Detection unit, 50 Wearable device, 52, 232 Fan unit, 231 Air flow path, 451 Microphone unit, 452 Rotation speed detector, 511 Central portion, 512 Wing portion, 521 Joint.

Claims

1. A headphone device having a pair of housing units provided corresponding to each ear of a wearer, each housing unit including ear pads forming an air chamber that covers the ear, a speaker unit disposed in the air chamber, and an airflow control unit that controls the airflow in the air chamber.

2. A headphone device as claimed in claim 1, wherein the airflow control unit comprises an airflow path having a pair of openings arranged in opposing positions across the wearer's ears within the air chamber, and a fan unit arranged within this airflow path to form an airflow in at least one direction within the airflow path.

3. A headphone device as claimed in claim 2, further comprising: a circuit section which receives an input of an audio signal that causes the speaker unit to sound and causes the speaker unit to sound based on the audio signal; and a microphone unit which is arranged closer to the fan unit than the speaker unit and detects sound generated by the fan unit, wherein the circuit section corrects the input audio signal so as to cancel the sound generated by the fan unit detected by the microphone unit, and causes the speaker unit to sound based on the corrected audio signal.

4. A headphone device as described in claim 2, further comprising: a circuit section that receives an input of an audio signal that causes the speaker unit to sound and causes the speaker unit to sound based on the audio signal; a microphone unit that is arranged closer to the fan unit than the speaker unit and detects the sound generated by the fan unit; and a detection section that obtains information related to the rotation speed of the fan provided in the fan unit, wherein the circuit section corrects the input audio signal based on the sound detected by the microphone unit and the information obtained by the detection section so as to cancel the sound generated by the fan unit, and causes the speaker unit to sound based on the corrected audio signal.

5. A headphone device according to any one of claims 1 to 4, further comprising a control circuit section that receives information from an information processing device and controls the fan unit.

6. A headphone device according to any one of claims 1 to 4, further comprising a heating or absorbing element in a contact portion that comes into contact with a wearer.

7. A wearable device comprising: a mounting member that can be attached to the wearer's head or neck; a pair of fan units provided corresponding to each of the wearer's ears; and a control circuit that receives information from an information processing device and controls the fan units, wherein the control circuit controls the drive of each of the pair of fan units based on the information received from the information processing device.

8. A wearable device as described in claim 7, wherein the control circuit unit controls the airflow strength of each of the pair of fan units and controls the airflow direction of each fan unit based on information received from the information processing device.

9. A wearable device as described in claim 8, wherein the fan units are attached to the mounting member via joint parts and are arranged so that the angle of the air blowing direction relative to the mounting member can be changed, and the control circuit part drives the joint parts based on information received from the information processing device to control the air blowing direction of each fan unit.

10. A wearable device according to any one of claims 7 to 9, wherein the mounting member further comprises a heating or heat absorbing element.

Images