KR101965513B1 - Open-ear headphone and method for sound playback using the same - Google Patents

Abstract

One embodiment of the invention includes a processor for extracting audio signals of one or more channels from source data and generating output audio signals; And loudspeakers spaced from the user's ear and outputting the output audio signals with the ear open.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an ear-

The present invention relates to an ear-open headphone for outputting sound without covering the user's ear and a method for reproducing sound using the ear-open headphone.

Earphone and headphone, which are conventional user sound output devices, are essentially configured to completely cover the user's ears. The earphone is classified into a canal type earphone and an open type earphone. Headphones are classified into an open type and a closed type. However, the earphone and the headphone inevitably have a feature of outputting sound while covering the user's ear.

However, when the sound is output while covering the user's ears, the external sound is greatly attenuated or blocked. As a result, it is difficult to communicate with other people and it is difficult to detect the surrounding danger.

In order to solve such a problem, when the sound is outputted while the ear is opened, sound may be transmitted to other people, which may cause inconvenience, and sound may be transmitted unclearly, , A technology that overcomes these problems is needed.

The above-described background technology is technical information that the inventor holds for the derivation of the present invention or acquired in the process of deriving the present invention, and can not necessarily be a known technology disclosed to the general public prior to the filing of the present invention.

Korean Patent Registration No. 10-1567521

SUMMARY OF THE INVENTION It is an object of the present invention to provide an ear-open headphone for outputting sound in a state in which a user's ear is open and a sound reproducing method using the same.

It is also an object of the present invention to provide an ear-open headphone which outputs directional sound so that sound is clearly transmitted only to a user, and a sound reproducing method using the same.

It is another object of the present invention to provide an ear-open headphone in which sound is divided into frequency bands and output to a separate speaker, and a sound reproducing method using the same.

It is also an object of the present invention to provide an ear-open headphone for outputting a low-frequency sound having a low directivity using a bone conduction unit or an ex- pector unit and a sound reproducing method using the same.

One embodiment of the invention includes a processor for extracting audio signals of one or more channels from source data and generating output audio signals; And loudspeakers spaced from the user's ear and outputting the output audio signals with the ear open.

The apparatus may further include streamlined sound delivery conduits connected to at least a portion of the speakers to deliver sounds output from the connected speakers to the user in a direction of the ear, And second audio signals corresponding to the proximity speakers, wherein the speakers are connected to the sound transfer tubes to output non-proximity speakers that output the first audio signals, And proximity speakers that are not coupled to the tubes and output the second audio signals.

The signal processing unit may further include a signal correction unit for generating a correction parameter using the sound transfer pipe parameter to correct the output audio signals.

Wherein the sound transfer tube parameters include information corresponding to at least one of material, length, size and shape of the sound transfer tubes, the correction parameters including equalizer adjustment information of the output audio signals, delay delay adjustment information, and level adjustment information.

At this time, the sound transfer tubes may include radiation grilles that adjust the direction of the final emitted sound at the ear tip of the user

At this time, the non-proximity speakers may include a directional sound output unit.

At this time, the proximity speakers may be composed of a bone conduction element or an exciter element.

A vibration generator for generating vibration corresponding to the output vibration signal; And a microphone for inputting sound, and the processor can generate an output vibration signal for generating vibration in the vibration generating section from at least one of the source data or the sound input from the microphone.

The sound cover may further include a sound cover covering at least a part of the user's ear so as to collect sounds output from the speakers toward the ear of the user.

At this time, the processor can invert the left and right channels of the output audio signals when the left and right direction of the headphone is inverted.

Also, an embodiment of the present invention includes: extracting audio signals of one or more channels from source data and generating output audio signals; And outputting the output audio signals in a state in which the ear is opened using speakers spaced from the user's ear.

Wherein the output audio signals comprise first audio signals corresponding to non-proximity speakers and second audio signals corresponding to proximity speakers, wherein outputting the output audio signals comprises: Outputting the first audio signals using non-proximity speakers; And outputting the second audio signals using the proximity speakers not connected to the sound transfer tubes, wherein the sound transfer tubes are connected to the non-proximity speakers, And deliver the sounds with directivity in the ear direction of the user.

The method may further include generating a correction parameter using the sound transfer parameter and correcting the output audio signals.

Wherein the sound transfer tube parameters include information corresponding to at least one of material, length, size and shape of the sound transfer tubes, the correction parameters including equalizer adjustment information of the output audio signals, delay delay adjustment information, and level adjustment information.

Wherein the delivering may comprise adjusting the direction of the finally emitted sounds using radial grilles located at the ear ends of the user of the sound transfer tubes.

In this case, the step of outputting the first audio signals may output the directional sounds using the directional sound output unit.

The outputting of the second audio signals may be performed using a bone conduction element or an ex vivo element.

Generating an output vibration signal from at least one of the sound inputted from the source data or the microphone; And generating a vibration corresponding to the output vibration signal using the vibration generating unit.

The method may further include collecting sounds output from the speakers by using a sound cover covering at least a part of the user's ear in an ear direction of the user.

At this time, the step of generating the output audio signal may reverse the left and right channels of the output audio signals when the left and right direction of the headphone is inverted.

According to the present invention, the ear-open type headphone that outputs a sound in a state in which the user's ear is open and the sound reproducing method using the ear-open headphone enable the user to simultaneously listen to the sound output together with the surrounding sound.

In addition, according to the present invention, a directional sound is generated by the ear-open headphone and a sound reproducing method using the same, so that the sound is clearly transmitted only to the user, thereby preventing unwanted sounds from being heard by others.

In addition, according to the present invention, sound is output to a separate speaker by dividing sound into frequency bands by ear-open type headphones and a sound reproducing method using the same, and sound output suitable for different directivity and attenuation according to frequency band of sound is possible Do.

Further, according to the ear-open type headphone and the sound reproducing method using the same, the sound of a low directivity low frequency band is output by using a bone conduction unit or an exporter unit, so that a low directivity of a low frequency sound, It is possible to overcome the characteristic that the sound is attenuated by the width.

1 is a block diagram of a sound reproducing system using an ear-open headphone according to an embodiment of the present invention.
Fig. 2 is a block diagram showing an example of the ear-open headphone shown in Fig. 1. Fig.
3 and 4 are views showing an ear-open headphone according to an embodiment of the present invention and a wearing state thereof.
FIG. 5 is a view showing the wearing of a right portion of an ear-open headphone according to an embodiment of the present invention.
6 and 7 are views showing an example of a right portion of an ear-open headphone according to an embodiment of the present invention.
FIG. 8 is a flowchart illustrating a method of reproducing sound using an ear-open headphone according to an embodiment of the present invention.
FIG. 9 is a view showing an ear-open headphone according to an embodiment of the present invention.
FIG. 10 is a view showing an example of wearing a right portion of an ear-open headphone according to an embodiment of the present invention.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. The effects and features of the present invention and methods of achieving them will be apparent with reference to the embodiments described in detail below with reference to the drawings. Hereinafter, a repeated description, a known function that may obscure the gist of the present invention, and a detailed description of the configuration will be omitted. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

However, the present invention is not limited to the embodiments described below, but all or some of the embodiments may be selectively combined and implemented in various forms. In the following embodiments, the terms first, second, and the like are used for the purpose of distinguishing one element from another element, not the limitative meaning. Also, the singular expressions include plural expressions unless the context clearly dictates otherwise. Also, the terms include, including, etc. mean that there is a feature, or element, recited in the specification and does not preclude the possibility that one or more other features or components may be added.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or corresponding components throughout the drawings, and a duplicate description thereof will be omitted .

FIG. 1 is a diagram showing a configuration of a sound reproducing system 1 using an ear-open headphone according to an embodiment of the present invention.

Referring to FIG. 1, an ear-open headphone 100 is interconnected with a source data providing apparatus 200 in a sound reproducing system 1 using an ear-open headphone according to an embodiment of the present invention. Here, the ear-open headphone 100 and the source data providing apparatus 200 can be connected through wired or wireless, and Bluetooth can be used for wireless connection.

The ear-open headphone 100 according to an embodiment of the present invention receives source data from the source data providing apparatus 200, extracts at least one audio channel from the source data, generates an output audio signal from the audio channels And output audio signals are output using speakers spaced from the user's ear.

That is, even when the ear-open headphone 100 is mounted, the user's ears are completely opened, so that the external sound can be completely heard. When the sound is reproduced by the ear-open headphone 100, the sound output by the effect that the external sound is not heard due to the masking effect can be heard. In addition, the cocktail party effect allows you to hear the sounds you want to hear from the outside sound while the sound is being reproduced.

In other words, by using the ear-open headphone of the present invention designed to be heard only by the user in a state in which the ear is open, the user can hear the external sound while listening to the desired sound to sense the danger, Can be prevented from being heard. Further, even when the sound is reproduced / stopped, since the ear is opened, it is not necessary to remove the headphones, and it is possible to avoid the feeling of stiffness and resistance to stop the ear. In addition, it is possible to prevent a high sound pressure and a hearing loss due to long-time use. In addition, the power consumption can be minimized by separately outputting bass and treble. It can also be combined with other sound systems to build high-channel sound systems.

When a high-channel sound system is built in combination with another sound system, the surround sound of another sound system and the immersive sound of the ear-open headphone 100 of the present invention can be merged to provide a more stereoscopic and realistic sound have.

Here, the source data is source data for a movie or sound source to be output, and includes audio data.

In particular, the form of the ear-open headphone 100 is not limited. Headphones that are fixed on the user's head, such as conventional overhead headphones, or headphones that are fixed behind the user's head, but may have a mask shape, a glasses shape, a smart glass shape, or the like. That is, it is sufficient that the user's ear is opened. In particular, the ear-openable headphone 100 may be divided into two left and right units and mounted on the user's glasses, or may be separately fixed around the user's ears or the ears.

If a plurality of ear-open headphones 100 are connected to one source data providing device 200, each of the headphones can output a sound different from each other. For example, it is possible to output a sound to each headphone that provides a sense of depth corresponding to the position.

Also, the sound providing the three-dimensional feeling can be output in consideration of the positional relationship between the source data providing device 200 and the ear-open headphones 100. [ For example, the user provides a different sound for each of the case where the user is on the front side and the case where the user is on the right side and the case where the user is on the left side, ) Can be grasped. Accordingly, the user can listen to a more stereoscopic sound and immerse in the content. On the contrary, it is also possible to output a sound providing a stereoscopic effect corresponding to a predetermined virtual position regardless of the position of the ear-open headphone 100.

In addition, a plurality of ear-open headphones 100 may be directly or indirectly connected to each other, thereby providing a radio transmitting / receiving function such as a radio or a conference telephone.

The source data providing apparatus 200 refers to a device that provides source data of a sound source to be reproduced in the ear-open headphone 100. For example, the source data providing apparatus 200 includes a CD player, an MP3 player, a PC, a smart phone, and the like.

At this time, the source data providing apparatus 200 may perform control related to sound reproduction while providing the source data. For example, control of starting, stopping, pausing, reproducing the next song, reproducing the previous song, and adjusting the volume can be performed.

Fig. 2 is a block diagram showing an example of the ear-open headphone 100 shown in Fig.

2, an ear-open headphone 100 according to an embodiment of the present invention includes a processor 110, a communication unit 120, a memory 130, non-proximity speakers 140, proximity speakers 150, Sound transmission pipes 160, a signal correction unit 170, a vibration generating unit 180, a sound cover 190, and a microphone.

In detail, the processor 110 controls the overall function of the ear-open headphone 100 as a kind of central processing unit. That is, the processor 110 generates output audio signals, and controls the non-proximity speaker 140, the proximity speaker 150, the sound transmission pipe 160, the signal correction unit 170, the vibration generation unit 180, So that various functions can be provided.

The processor 110 extracts at least one or more audio channels from the source data received from the source data providing device (see 200 in FIG. 1), and generates output audio signals from the audio channels. Here, the output audio signals may be signals for outputting an immersive sound.

At this time, the processor 110 may generate high-frequency audio signals corresponding to a predetermined first frequency band and low-frequency audio signals corresponding to a predetermined second frequency band as output audio signals. For example, the first frequency band may be 200 Hz to 20 kHz, and the second frequency band may be 20 Hz to 200 Hz. Here, the high-frequency audio signals and the low-frequency audio signals can be divided using a crossover or a filter. That is, the high-pass filter (HPF) can be used to generate the high-frequency audio signals by rolling off the low-frequency band and the low-pass filter (LPF) can be used to generate the low-frequency audio signals. At this time, the high pass filter and the low pass filter can be set by the user. You can also adjust the crossover or filter frequency according to the surround sound format.

At this time, the processor 110 may generate audio signals for output from the non-proximity speakers 140 and audio signals for outputting from the proximity speakers 150. [ For example, audio signals for output from non-proximity speakers 140 may be generated by allocating high-frequency audio signals, and audio signals for outputting from the proximity speakers 150 may be allocated to low-frequency audio signals But the present invention is not limited thereto. That is, audio signals to be allocated to each speaker can be generated through various combinations.

At this time, the processor 110 may reverse the left and right channels of the output audio signals when the right-and-left direction of the ear-open headphone 100 is reversed. For example, the user can wear his neck-like neck with the left-right direction of the ear-open headphones 100 reversed. In this case, the left and right directions of the speakers are reversed. By reversing the left and right channels of the output audio signals, The left and right directions of the sound can be maintained. In this case, the ear-open headphone 100 can function as a speaker.

At this time, the processor 110 may generate an output vibration signal from at least one of the source data or the sound input from the microphones. Here, the output vibration signal may be generated from the vibration data included in the source data, but may be generated from the audio data even if the vibration data is not included in the source data.

For example, it is possible to detect the ambience level of the audio source data, and calculate the difference between the ambience level and the maximum level to generate an output vibration signal to generate the vibration when the level reaches a certain level. At this time, it is possible to detect a transient and make it a vibration. Alternatively, an output vibration signal may be generated to generate vibration when the audio signal is above a certain level.

Further, it is possible to generate the output vibration signal so as to generate vibration when the micro-input ambient sound is above a certain level. Through this, it is possible to vibrate the surrounding danger while the sound is being reproduced.

At this time, the processor 110 may generate noise-canceled output audio signals using the micro-input ambient sound.

At this time, the processor 110 may generate the output audio signals to adjust the arrival time of the indirect sound to increase the spatial feeling of the output sounds using the early reflection parameter, thereby to produce the size of the space. Further, it is possible to provide an immersive sound that provides a strong sense of space by using a head related transfer function (HRTF) and a delay parameter together.

At this time, the processor 110 may generate output audio signals for the navigation notification, and may generate binaural output audio signals having a sense of depth corresponding to the direction of the navigation notification. For example, when the navigation notification is a left-turn notification, the binaural output audio signal can be generated to have a stereoscopic effect as if the sound is heard on the left side of the user. Likewise, the right turn notification can be made to have a stereoscopic effect on the right side, the bottom unevenness notice on the down side, and the overspeed camera to have an upward stereoscopic effect.

The communication unit 120 provides a communication interface necessary for transmitting the send / receive signal between the ear-open headphone 100 and the source data providing apparatus (see 200 in FIG. 1).

Here, the communication unit 120 may be a device including hardware and software necessary to transmit / receive a signal such as a control signal or a data signal through a wired / wireless connection with another network device. For example, the communication unit 120 can communicate with the source data providing apparatus (see 200 in FIG. 1) through the Bluetooth technology or the Wi-Fi technology, and can communicate with the source data providing apparatus (see 200 in FIG. 1) Can be performed. In addition, it can work with other ear-open headphone devices 100 through Bluetooth technology or Wi-Fi technology.

The memory 130 performs a function of temporarily or permanently storing data processed by the processor 110. Here, the processor 130 may include magnetic storage media or flash storage media, but the scope of the present invention is not limited thereto.

The non-proximity speakers 140 output audio signals through the sound transfer conduits 160. That is, the directivity of the output sounds can be enhanced through the sound transmission pipes 160.

At this time, the non-proximity speakers 140 may include a directional sound output unit. That is, by outputting high-frequency audio signals so as to have directivity when outputting high-frequency audio signals, it is possible to ensure that sounds output to the user are transmitted well. In addition to enhancing the directivity of the output sounds through the sound transfer tubes 160, the directional sound output unit can be used to direct the output sounds. Here, the directional sound output unit may mean a supergain speaker having an ultrasonic circuit.

At this time, the non-proximity speakers 140 can use a high-quality full-range driver so as to maximize sound quality. In addition, the acoustic driver alone can be used alone, and it can be used together with the proximity speakers 150 to output sounds of the entire frequency band.

At this time, the non-proximity speakers 140 can output a sound to read the notification of the headphone itself, the notification of the interlocked device, etc. in a voice.

The proximity speakers 150 output audio signals without passing through the sound transfer tubes. Here, the proximity speakers 150 can reproduce not only the low frequency but also the high frequency so as to output the full range audio.

At this time, the proximity speakers 150 may be composed of a bone conduction element or an exditor element. Through this, it is possible to overcome the problem that the low-frequency sound has low directivity, diffraction is good, and attenuation is good when propagated, making it difficult to clearly communicate only to the user. And, it is possible to output the necessary level level without adjusting the amplifier output separately. It is also possible to implement without adding a separate EQ circuit.

At this time, the proximity speakers 150 can be mounted on any part of the ear-open headphone 100, and can play up to the bass response by acting as a subwoofer. In addition, the bass output can be reinforced by using all or a part of the body of the ear-open headphone 100 as a diaphragm. That is, the proximity speakers 150 are not limited in their positions.

At this time, the proximity speakers 150 can output sounds in close contact with the user's body. That is, the proximity speakers 150 can smoothly transmit a low-frequency sound to the user's mouth through the skin of the user's head with a large wavelength. In addition, the scalp can be vibrated with a large wavelength to provide a more dramatic listening environment.

At this time, the proximity speakers 150 can perform a LFE (Low Frequency Effect) function.

At this time, the proximity speakers 150 can output a sound that reads the announcement of the headphone itself, the notification of the interlocked device, etc. in a voice.

Sound conduits 160 are connected to non-proximity speakers to deliver the sounds output from the non-proximity speakers in a directional direction of the user's ear. That is, the sound transmission pipes 160 have an effect of cohering the sound energy in one direction. The sounds output from the non-proximity speakers have directivity while passing through the streamlined sound transmission pipes, and the transmitted sounds can be transmitted to the user's ear. Here, the sound transmission tubes may have a streamlined shape. Therefore, there is an advantage that the output loss is low by efficiently transmitting sound energy.

At this time, the sound transmission pipes can be configured in multiple. In other words, it is possible to transmit sound by bundling several sound transmission tubes with a small aperture, rather than one sound transmission tube with a large aperture. The use of multiple small diameter sound transfer tubes prevents the reduction of directivity due to the diffraction of the transmitted sound and reduces the effect of the sound leaking outside the user's ear.

At this time, each of the sound transmission pipes may be configured to transmit sound by dividing into frequency bands.

At this time, the sound transmission pipes have a spiral structure to further enhance the directivity. In addition, it is possible to include a filter therein so that only a specific frequency can be passed. In particular, the sound transmission tubes can have a reverse shape of the auricle, thereby providing a structure in which the sound can naturally enter into the outer ear carnal. In addition, the sound transfer tubes collect sound in place of the auricle and send it to the ear canal, and prevent the sound of the speaker from being transmitted to the outside of the user's ear canal.

As described above, the higher the frequency of sound, the stronger the directivity and the lower the diffraction efficiency. Therefore, the high-frequency audio signal and the low-frequency audio signal having different directions can be separately processed.

Here, the sound transfer tubes 160 may include radiation grilles that adjust the direction of the final emitted sound at the end of the user's ear. Radial grills serve to adjust the directional output sounds to reach the user's ear because the body structure is different for each user. At this time, the tilt angle may be 45 degrees. Here, the radiation grills can be adjusted by the user directly. The grill can be adjusted by means of a slide bar, a wheel, or the like. In particular, radial grills have a structure that minimizes negative diffraction, and may have a structure that is tilted to the direction of the ear.

At this time, the sound transmission pipes 160 can transmit the sounds output from the outside to the inside with respect to the user's ear.

At this time, it is possible to configure the sound transmission pipes 160 to pass through only a predetermined frequency including a filter.

At this time, the sound transmission pipes 160 may be provided with absorbing materials for suppressing vibration. Here, the absorbing material may wrap around the outer wall of the sound transmission pipes, or may be disposed so as to contact only a part of the surface.

The signal corrector 170 may generate correction parameters using the sound transfer tube parameters to correct the output audio signals. This is because the output sound may pass through the sound transmission tube, causing changes in the waveform or volume, and delay in propagation time.

At this time, the sound transfer tube parameters include information corresponding to at least one of the material, length, size and shape of the sound transfer tubes, and the correction parameters include the equalizer adjustment information of the output audio signals, , And level (level) adjustment information. That is, by performing appropriate corrections for the respective output audio signals in consideration of the characteristics of the sound transmission pipes, the user can listen to the distortion-free sound.

The vibration generating unit 180 outputs an output vibration signal to generate vibration.

At this time, the vibration generating unit 180 can adjust the intensity of the output vibration. And, the vibration intensity can be controlled by the user's input. In addition, the intensity of the vibration from the source data and the intensity of the vibration for notification can be set separately. The adjustment of the intensity of the vibration includes the case where the vibration function is not used. Therefore, it is possible to set only the vibration for the notification to be used.

For example, the vibration generating unit 180 may generate vibration for the purpose of reinforcing the low-frequency sound in the output audio signals. The vibration may be generated for the purpose of providing notification according to the danger detection from the surrounding sound. In addition, vibration may be generated for the purpose of providing a notification of the source data providing apparatus 200. That is, when the source data providing apparatus 200 is a smart phone, it can generate interactive vibration for telephone notification, message notification, and application notification.

The sound cover 190 covers at least a part of the user's ear to collect sounds output from the speakers toward the user's ear. The user can listen to the sound because the ear-open headphone 100 outputs a sound so that the ear-open headphone 100 has the directivity without the sound cover 190. However, when the sound cover 190 is additionally used, It can be heard with a sense of space and clarity. In addition, it is possible to reduce the transmission of sound to the outside.

At this time, the sound cover 190 may have a detachable structure.

At this time, the sounder cover 190 may have a structure for covering the user's ear through a folding or sliding manner, and a structure for operating the user's ear without covering the ear.

The microphone receives ambient sound. Here, the plurality of microphones may be configured.

At this time, the sounds input from the microphone may be used to provide a noise cancellation function, a danger notification function according to ambient sounds, or a voice recognition control function by recognizing the user's voice. Noise cancellation function can be performed by dividing forward / backward / left / right / up / down.

At this time, two or more Omni Directional microphones can be used to receive the binaural sound.

At this time, the microphone may function as a sound input device for interfacing with the user's terminal. And you can use 2 or more microphones to cancel the ambient noise, not the user's voice.

Accordingly, by outputting a sound of directivity while keeping the user's ears open, the user can listen to the ambient sound and listen to the output sound clearly, while preventing the output sound from being heard to the other person, . In addition, it is possible to prevent hearing damage due to negative pressure due to prolonged use.

The ear-open headphone 100 according to an embodiment of the present invention may include a sensor unit.

At this time, the sensor unit may include an optical sensor, thereby sensing the brightness of the surroundings and recognizing the daytime or the nighttime. In the case where it is recognized as nighttime, the user can perform a function of reproducing audio at a preset dimming level.

At this time, the sensor unit may include a GPS sensor to determine the current position. It can also perform location recording and provide location based services.

At this time, the sensor unit may include an ultrasonic sensor, and it is possible to determine whether the headphone is worn. It is also possible to monitor a biological signal such as a user's heart rate.

At this time, the sensor unit may include an acceleration sensor or a gyroscope sensor, thereby tracking the motion of the user's head. It is possible to provide a function of controlling the headphones based on the gesture using the movement of the head of the user who has been tracked. For example, if you nod your head, nod your head twice, move your head from left to right for about 1 second, move your head from left to right quickly, tilt your head from left to right, The user can set the specific commands for the operation such as the case of tilting from left to right for a while to provide the control function. In particular, the accuracy of recognizing the gesture from the movement of the user can be improved by learning the movement of the user.

In addition, the sensor unit can adjust the overall panning value of the surround sound according to the position of the user's head when constructing a high-channel sound system in connection with another speaker system.

At this time, the sensor unit judges whether or not the user wears the sensor using various sensors, and when the sensor unit is not worn, it enters the sleep mode or the standby mode to optimize the power consumption. In addition, it is possible to recognize a head size of a wearer by using various sensors and to provide a security function by restricting use of a person having a different head size from a registered user.

The ear-open headphone 100 according to an embodiment of the present invention may include a glasses mount, through which the user's glasses or sunglasses can be fixed. Therefore, the user can wear headphones even when wearing glasses or sunglasses. At this time, the glasses holder may be configured such that the user's glasses or a part of the sunglasses is embedded in the inside of the headphones.

The ear-open headphone 100 according to an embodiment of the present invention may include an operation unit, which includes an input unit capable of recognizing at least one of a user's touch, slide, and click. The user can control the ear-open headphone 100 by touch, slide, click, or the like through the operation unit, and can further control the interlocked source data providing apparatus (see 200 in FIG. 1) have.

The ear-open headphone 100 according to an embodiment of the present invention may include a folding portion, which may include a hinge that folds the body to easily move the ear-open headphone 100. A plurality of folding portions may be included.

The ear-open headphone 100 according to an embodiment of the present invention may include a battery, which is chargeable. The charging method may be at least one of wired, wireless, wired and wireless. In addition, the battery may be configured to be detachably replaceable.

The ear-open headphone 100 according to an embodiment of the present invention includes a band portion. The band may be fixed on the head of the user, fixed on the back of the user's head, have. It may be configured to adjust the fixed position in one product, but it may be configured such that the fixed position for each one product is determined to be one. At this time, the band portion may be formed with one or more protrusions to prevent the hair from flowing down due to friction between the user's hair and the user's scalp. Further, the band portion may be constituted of a plurality of members in order to increase the frictional force. The band portion may include a length adjusting portion. The length adjusting portion has a different size for each user, thereby providing a function of adjusting the length of the ear-open type headphone 100. At this time, the length adjusting unit can be configured to be able to increase or decrease the length by a sliding method.

The ear-open headphone 100 according to an embodiment of the present invention includes a module mounting portion, and the module mounting portion can be provided at one or more positions at various positions such as a front surface, a side surface, and a rear surface of the headphone. Modules that can be mounted on the module mounting part include a camera module, an illumination module, a FPV (First Person View) module, and an extended battery module.

At this time, when the FPV module is mounted and utilized, stereoscopic information can be provided together with binaural sound. For example, it is possible to output navigation image information through the PFV module, and to provide a stereoscopic notification sound corresponding to the navigation notification through the binaural sound described above.

At this time, it is possible to shoot a stereoscopic image or a panoramic image by mounting several camera modules.

The ear-open headphone 100 according to an embodiment of the present invention includes an infrared signal generator, and can perform a function as a remote controller of an AV device by using an application or an operation button of a headphone connected thereto through the infrared signal generator.

At this time, the infrared signal generator may be positioned at the front of the headphone.

The ear-open headphone 100 according to an embodiment of the present invention includes a solar energy charging unit, through which the built-in battery can be charged. The solar energy charging unit may be disposed at one or more positions at various positions such as the rear surface, the side surface, and the like of the headphone. In addition, the solar energy charging part may include a solar panel, a solar panel, and the like.

The ear-open headphone 100 according to an embodiment of the present invention includes a front directional speaker, through which a sound for providing information to another person on the front side can be output.

At this time, the front directional speaker and the microphone may be used together to provide functions such as simultaneous interpretation.

3 and 4 are views showing an ear-open headphone 100 according to an embodiment of the present invention and a wearing state thereof.

3 and 4, an ear-open headphone 100 according to an embodiment of the present invention may have a headband shape that wraps around the back of the user's head. And, the speakers are placed at the end and can output sounds without covering the user's ears.

3 and 4, the ear-open headphone 100 may have a headband shape that wraps around the upper side of the user's head like a normal headphone.

In addition, although Fig. 4 shows the ear-open headphone 100 not covering the user's ear at all, it is spaced apart from the user's ear according to the configuration of the ear-open headphone 100, but may cover a part of the ear of the user.

5 is a view showing the wearing of the right portion of the ear-open headphone 100 according to an embodiment of the present invention.

Referring to FIG. 5, the ear-open headphone 100 does not cover the user's ear when worn by the user.

Since the degree of directivity and the degree of diffraction are different according to the frequency of sound and the degree of attenuation according to propagation differs, a low-frequency audio signal and a high-frequency audio signal can be separately processed.

The non-proximity speaker 140 outputs an audio signal (in particular, a high-frequency audio signal) generated from the source data, and the output sound is transmitted to the user's ear through the sound transfer pipe 160 (5a). Here, the sound transmission pipe 160 has a spiral shape, thereby enhancing the directivity of the transmitted sound. In addition, the non-proximity speaker 140 can output a directional sound by using the directional speaker unit.

The proximity speaker 150 outputs an audio signal (in particular, a low-band audio signal) generated from the source data (5b). Here, the proximity speaker 150 may output an audio signal using a bone conduction element or an ex vivo element. The use of a bone conduction device or an exciter element can solve the problem of directivity and attenuation.

6 and 7 are views showing an example of the internal structure of the right portion of the ear-open headphone 100 according to an embodiment of the present invention.

6 and 7 are perspective views showing the internal structure of the right portion of the ear-open headphone 100 according to the embodiment of the present invention. 6 is a front view (front view direction of the user) in the right direction of the drawing, and Fig. 7 is a front elevation direction (front direction of the user) in the left upper direction of the drawing.

6 and 7, the ear-open headphone 100 according to the embodiment of the present invention transmits the sounds output from the non-proximity speaker 140 to the ear of the user through the sound transfer tube 160. [ The proximity speaker 150 can output sound without passing through the user's ear by using the bone conduction element or the exciter element.

At this time, the non-proximity speaker 140 can output a directional sound using the directional sound output unit.

At this time, the sound transmission pipe 160 has a spiral structure, so that the directivity of the transmitted sound can be enhanced.

At this time, the sound transmission pipe 160 may have the same number as that of the non-proximity speaker 140 as shown in FIG. 6, but may be composed of a plurality as shown in FIG.

At this time, when the sound transmission pipes 160 are composed of a plurality of sound transmission pipes, each of the sound transmission pipes can output sounds classified by frequency bands. Each sound transfer tube can output sounds for realizing an immersive sound. Therefore, it is possible to reproduce different sounds for each sound transmission pipe to provide a sense of space and depth. Particularly, when a plurality of small sound transmission pipes are utilized, directivity can be more advantageous than when using a small size sound transmission pipe.

FIG. 8 is a flowchart illustrating a method of reproducing sound using an ear-open headphone according to an embodiment of the present invention.

Referring to FIG. 8, in the sound reproducing method using ear-head type headphones according to an embodiment of the present invention, ear-open headphones (see 100 in FIG. 1) And generates output audio signals composed of at least one channel from the data (S801).

At this time, the output audio signals may include a low-band audio signal and a high-band audio signal classified based on a frequency band.

At this time, the output audio signals may include an audio signal corresponding to the non-proximity speakers classified based on the type of the speakers and an audio signal corresponding to the proximity speakers.

In addition, in the sound reproduction method using the ear-open headphones according to the embodiment of the present invention, the ear-open headphones (see 100 in FIG. 1) perform the corrections corresponding to the sound transmission tubes with respect to the output audio signals (S803 ). This is because some output sounds are transmitted to the user ' s ears through the sound transmission pipes and distortions occur, so that they are corrected in advance.

At this time, in correcting the output audio signals, the correction parameter may be generated using the sound transfer tube parameter.

At this time, the sound transmission pipe parameter may include information corresponding to at least one of length, material, size and shape corresponding to each sound transmission pipe. This is due to the fact that the waveform of the sound varies depending on the length, the material, the size and the shape of the sound transmission tube, and the sound transmission time differs depending on the length.

At this time, the correction parameter may include at least one of equalizer adjustment information, delay adjustment information, and level adjustment information of the output audio signals. In other words, it compensates the degree of distortion of the output sound as it passes through the sound transmission pipes, and solves the problem of sink mismatch between output sounds due to time delay.

In addition, according to an embodiment of the present invention, an ear-open headphone (see 100 in Fig. 1) outputs sounds using speakers from output audio signals (S805).

At this time, non-proximity speakers may be used to output high-frequency audio signals, and nearby speakers may be used to output low-frequency audio signals.

At this time, the non-proximity speakers may include a directional sound output unit, and the proximity speakers may be composed of a bone conduction element or an exciter element.

In addition, a sound reproducing method using ear-open headphones according to an embodiment of the present invention is such that ear-open headphones (see 100 in FIG. 1) transmit at least some outputted sounds to the user's ears through the sound transfer tubes (S807).

At this time, the sounds output from the non-proximity speakers can be transmitted to the user's ear through the sound transmission pipes. This is because the high-frequency sounds are easy to output a directional sound because of their high directivity and low diffraction properties.

9 is a view showing a state in which the ear-open headphone 100 according to the embodiment of the present invention is worn.

Referring to FIG. 9, the ear-open headphone 100 according to an exemplary embodiment of the present invention may include a sound cover 190 that covers at least a portion of a user's ear and outputs sounds output to a user's ear.

At this time, the sound cover 190 may be spaced apart from the user's ear so as to at least partially cover the user's ear.

FIG. 10 is a view showing an example of wearing the right portion of the ear-open headphone 100 according to an embodiment of the present invention.

Referring to FIG. 10, the ear-open headphone 100 collects the sounds output through the sound cover 190 covering at least a portion of the user's ear toward the user's ear.

The non-proximity speaker 140 outputs an audio signal generated from the source data, and the output sound is transmitted to the user's ear through the sound transmission pipe 160. Here, the sound transmission pipe 160 has a spiral shape, thereby enhancing the directivity of the transmitted sound. In addition, the non-proximity speaker 140 can output a directional sound by using the directional speaker unit.

The proximity speaker 150 outputs an audio signal generated from the source data. Here, the proximity speaker 150 may output an audio signal using a bone conduction element or an ex vivo element. The use of a bone conduction device or an exciter element can solve the problem of directivity and attenuation.

The sound cover 190 collects the sounds to be output (especially the high-frequency sounds) to the user's ear so that the user can listen to the output sounds better. In addition, by partially covering the ears, a part of the external sound is blocked, so that the user can immerse in and listen to the output sounds.

The specific acts described in the present invention are embodiments and are not intended to limit the scope of the invention in any way. For brevity of description, descriptions of conventional electronic configurations, control systems, software, and other functional aspects of such systems may be omitted. Also, the connections or connecting members of the lines between the components shown in the figures are illustrative of functional connections and / or physical or circuit connections, which may be replaced or additionally provided by a variety of functional connections, physical Connection, or circuit connections. Also, unless explicitly mentioned, such as " essential ", " importantly ", etc., it may not be a necessary component for application of the present invention.

Accordingly, the spirit of the present invention should not be construed as being limited to the above-described embodiments, and all ranges that are equivalent to or equivalent to the claims of the present invention as well as the claims .

1: Sound playback system using ear-open headphones
100: ear-open headphones
110: processor 120:
130: memory 140: non-proximity speaker
150: Proximity speaker 160: Sound transmission tube
170: signal correction unit 180: vibration generating unit
190: Sound cover
200: source data provider

Claims (20)

A processor for extracting audio signals of one or more channels from the source data and generating output audio signals;
A signal correction unit for generating a correction parameter by using a sound transfer tube parameter and correcting the output audio signals; And
Speakers outputting the output audio signals in a state in which the user's ear is spaced apart from the user's ear;
/ RTI >
The processor
Generating first audio signals of a predetermined first frequency band and second audio signals of a predetermined second frequency band from the output audio signals,
The speakers
A first speaker for outputting first audio signals of the predetermined first frequency band; And
A second speaker for outputting second audio signals of the predetermined second frequency band; Lt; / RTI >
The first speaker
And outputting the first audio signals of the predetermined first frequency band having directivity by using sound transmission pipes connected to the first speaker and facing the ear canal of the user,
The correction unit
And corrects the first audio signals using the sound transfer tube parameters of the sound transfer tubes connected to the first speaker. delete delete The method according to claim 1,
The sound transfer tube parameter
Length, size and shape of the sound transmission pipes,
The correction parameter
Wherein the at least one of the output audio signals includes at least one of equalizer adjustment information, delay adjustment information, and level adjustment information of the output audio signals. The method of claim 4,
The sound transfer tubes
A plurality of radial grilles < RTI ID = 0.0 >
Wherein the headphone is an earphone. The method of claim 5,
The first speaker
Wherein the headphone unit includes a directional sound output unit The method according to claim 1,
The second speaker
An ear conduit, a bone conduction element or an exciter element. The method according to claim 1,
A vibration generating unit for generating vibration corresponding to the output vibration signal; And
Microphone receiving sound
Further comprising:
The processor
And generates an output vibration signal for generating vibration in said vibration generating section from at least one of said source data or sound inputted from said microphone. The method according to claim 1,
A sound cover covering at least a part of the user's ear so as to collect the sounds output from the speakers toward the user '
Further comprising an ear-openable headphone. The method according to claim 1,
The processor
And reverses the left and right channels of the output audio signals when the left and right direction of the headphone is inverted. Extracting audio signals of one or more channels from the source data and generating output audio signals;
Generating a correction parameter using the sound transfer tube parameter to correct the output audio signals; And
Outputting the output audio signals with the user's ears opened using speakers spaced from the user's ear
Lt; / RTI >
The generating step
Generating first audio signals of a predetermined first frequency band and second audio signals of a predetermined second frequency band from the output audio signals,
The outputting step
The first speaker included in the speakers outputting the first audio signals of the predetermined first frequency band; And
A second speaker included in the speakers outputting second audio signals of the predetermined second frequency band; Lt; / RTI >
The step of outputting the first audio signals
Wherein the first speaker is connected to the first speaker and outputs the first audio signals of the predetermined first frequency band so as to have a directivity by using sound transmission pipes directed to the ear canal of the user,
The step of correcting
Wherein the first audio signals are corrected using the sound transfer tube parameters of the sound transfer tubes connected to the first speaker. delete delete The method of claim 11,
The sound transfer tube parameter
Length, size and shape of the sound transmission pipes,
The correction parameter
Wherein the at least one of the output audio signals includes at least one of equalizer adjustment information, delay adjustment information, and level adjustment information of the output audio signals. 15. The method of claim 14,
The transmitting step
Adjusting the direction of the finally emitted sounds using the radiating grilles located at the ear tip end of the user of the sound transfer tubes
And a sound output unit for outputting sound to the earphone. 16. The method of claim 15,
The step of outputting the first audio signals
And outputting directional sounds using a directional sound output unit. The method of claim 11,
The step of outputting the second audio signals
Wherein the sound output is performed using a bimetallic element or an exciter element. The method of claim 11,
Generating an output vibration signal from at least one of a sound input from the source data or a microphone; And
Generating vibration corresponding to the output vibration signal using the vibration generating unit
Further comprising the steps of: (a) The method of claim 11,
Collecting sounds output from the speakers in the ear direction of the user using a sound cover covering at least a part of the user's ear
Further comprising the steps of: (a) The method of claim 11,
The step of generating the output audio signal
And reverses the left and right channels of the output audio signals when the left / right direction of the headphone is inverted.

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