CN116300144A - Intelligent glasses - Google Patents

Abstract

The invention relates to an intelligent glasses, which comprises: wearing main part and glasses leg, glasses leg sets up in wearing the side of main part, is provided with first chamber and the second chamber of holding on the glasses leg to be equipped with first trompil and third trompil, first trompil and first chamber intercommunication and towards the people ear position that holds, the third trompil and second chamber intercommunication and towards the outside of glasses leg hold; the main loudspeaker is arranged in the first accommodating cavity, and is provided with a sound outlet side, and the sound outlet side of the main loudspeaker is communicated with the first opening through part of the first accommodating cavity; the auxiliary loudspeaker is arranged in the second accommodating cavity, and is provided with a sound emitting side which is communicated with the third opening; the primary speaker is configured to produce a far-field audio signal when in operation, and the auxiliary speaker is configured to produce a muffling audio signal having a phase opposite to that of the far-field audio signal for canceling the far-field audio signal.

Description

Intelligent glasses

Technical Field

The invention relates to audio equipment, in particular to intelligent glasses with far-field silencing and loudspeaker functions.

Background

The speaker is an electroacoustic transducer, and has very wide application in various electronic devices such as automobiles, mobile phones, AR or VR devices, smart glasses, and the like.

Existing AR, VR equipment and intelligent glasses adopt external stereo as loudspeaker in many cases. However, the external sound equipment has higher requirements on the size of the indoor space, the sound insulation effect and the like, is inconvenient to use and has high cost, so that more and more portable wearable electronic devices such as AR (AR) glasses, VR (virtual reality) glasses, intelligent glasses and the like are selected to integrate the loudspeaker device inside the portable electronic devices, built-in sound equipment, headphones and the like are provided, the use cost of the portable electronic devices is lower, the portable electronic devices are more convenient, and the privacy is better.

However, even if the device is built with a speaker, the leakage of sound generated by the speaker still cannot be well prevented, which results in insufficient privacy of the electronic device and easy influence on the surrounding environment. Therefore, the existing partial electronic equipment utilizes the sound short circuit phenomenon existing in the loudspeaker to weaken the sound transmitted to the far field from the loudspeaker, and plays a certain silencing effect; however, the effect is still not ideal because only part of the low frequency sound can be removed by means of the acoustic short circuit.

Disclosure of Invention

The invention aims to provide intelligent glasses with far-field silencing and loudspeaker functions, so as to solve the problem that the far-field silencing effect is not ideal in the prior art.

According to one aspect of the present invention, there is provided smart glasses comprising:

the glasses leg is arranged on the side face of the wearing body, a first accommodating cavity and a second accommodating cavity are formed in the glasses leg, a first opening is formed in the glasses leg, the first opening is communicated with the first accommodating cavity and faces to a preset ear position, a third opening is formed in the glasses leg, and the third opening is communicated with the second accommodating cavity and faces to the outer side of the glasses leg;

a primary speaker disposed within the first receiving cavity, the primary speaker having a sound emitting side, the sound emitting side of the primary speaker being in communication with the first aperture through a portion of the first receiving cavity;

an auxiliary speaker disposed within the second receiving cavity, the auxiliary speaker having a sound emitting side, the sound emitting side of the auxiliary speaker being in communication with the third aperture;

the main speaker is configured to generate a far-field audio signal when in operation, and the auxiliary speaker is configured to generate a muffling audio signal having a phase opposite to that of the far-field audio signal, the muffling audio signal being configured to cancel the far-field audio signal.

Optionally, the amplitude of the muffled audio signal is less than or equal to the amplitude of the far-field audio signal.

Optionally, the primary speaker is operatively configured to also generate a listening audio signal having a magnitude that is greater than a magnitude of the far-field audio signal.

Optionally, testing the smart glasses in advance, and determining the sound generated by the main speaker at a predetermined spatial position relative to the smart glasses to obtain the far-field audio signal, wherein the far-field audio signal comprises frequency response characteristics and phase characteristics;

and determining a sound attenuation audio signal capable of forming cancellation to the far-field audio signal according to the frequency response characteristic and the phase characteristic of the far-field audio signal.

Optionally, a second opening is formed in the glasses leg, the second opening is communicated with the first accommodating cavity, and the direction of the second opening is different from that of the first opening;

the side of the primary speaker opposite the sound emitting side communicates with the second aperture.

Further optionally, the first opening faces downward of the temple, and the second opening faces upward of the temple.

Optionally, a side of the auxiliary speaker opposite to the sound emitting side is a rear sound measurement, and the second accommodating cavity seals the rear sound measurement.

Optionally, a plurality of the first openings are formed in the glasses leg.

Optionally, the distance between the main speaker and the predetermined ear position is smaller than the distance between the auxiliary speaker and the predetermined ear position.

Optionally, the pair of glasses legs are respectively arranged at two sides of the wearing main body;

and the main speakers and the auxiliary speakers arranged on the two glasses legs form a stereoscopic sound field.

The embodiment of the application has at least the following beneficial effects:

this application sets up auxiliary speaker through the front side of the main speaker that sets up in intelligent glasses, and output noise elimination audio signal transmits to the far field to main speaker, leads to privacy to reveal easily and offset with the far field audio signal that causes the influence to surrounding environment, effectually ensured the holistic privacy of speaker, also can not put more noise outward, is particularly useful for wearing formula electronic equipment such as AR and VR glasses, intelligent glasses.

Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic diagram of positions of a main speaker and an auxiliary speaker in an intelligent glasses according to an embodiment of the present invention;

fig. 2 is a schematic diagram of positions of a first opening, a second opening, and a third opening in smart glasses according to an embodiment of the present invention.

Description of the reference numerals

In the figure: 1-main speaker, 2-auxiliary speaker, 3-human earhole, 4-human auricle, 5-first trompil, 6-second trompil, 7-third trompil, 8-glasses leg, 9-wearing main part.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

The present embodiment provides an intelligent glasses, as shown in fig. 1-2, which includes:

the glasses leg 8 is arranged on the side face of the wearing body 9, a first accommodating cavity and a second accommodating cavity are formed in the glasses leg 8, a first opening 5 is formed in the glasses leg 8, the first opening 5 is communicated with the first accommodating cavity and faces to a preset human ear position, a third opening 7 is formed in the glasses leg 8, and the third opening 7 is communicated with the second accommodating cavity and faces to the outer side of the glasses leg 8;

a main speaker 1 and an auxiliary speaker 2, the main speaker 1 being disposed in the first accommodation chamber, the main speaker 1 having an outgoing side, the outgoing side of the main speaker 1 being in communication with the first opening 5 through a portion of the first accommodation chamber; the auxiliary speaker 2 is arranged in the second accommodating cavity, the auxiliary speaker 2 is provided with a sound emitting side, and the sound emitting side of the auxiliary speaker 2 is communicated with the third opening 7; the auxiliary speaker 2 is arranged around the front side of the main speaker 1;

the main speaker 1 is configured to generate far-field audio signals, and the auxiliary speaker 2 is configured to output muffled audio signals which counteract the far-field audio signals when in operation; the phase of the muffled audio signal is opposite to the phase of the far-field audio signal.

The far-field audio signal output by the main speaker 1, specifically, the audio signal which is not received by the user and transmitted to a remote place in the audio signal output by the main speaker 1 is easy to be heard by others to reveal the privacy of the user or cause noise pollution; in this embodiment, the auxiliary speaker 2 is configured to output a sound-deadening audio signal in the working process, and the output sound-deadening audio signal is transmitted to the external environment through the third opening on the sound output side thereof, meets with and counteracts the far-field audio signal; it should be noted that, because the main speaker 1 is disposed on the earpiece 8, and the earpiece 8 is located on the side of the wearing body 9, so that in the actual use scenario, the far-field audio signal intensity on the left and right sides of the wearer is the highest, in this embodiment, the sound emitting side of the auxiliary speaker 2 is preferably disposed to face the left and right sides of the wearer, and in the actual production and use process, the sound emitting side of the auxiliary speaker 2 can also be adjusted in a targeted manner according to the actual situation of the far-field audio signal, that is, the direction in which the actual intensity is the highest; the noise elimination audio signal and the far-field audio signal cancel each other, specifically, because the noise elimination audio signal has the audio characteristic with great difference with the far-field audio signal, the audio characteristic comprises the phase, the phase of the noise elimination audio signal is opposite to the phase of the far-field audio signal, so that the noise elimination audio signal has a good canceling effect on the far-field audio signal, the intensity is obviously reduced when the audio signal is sent out from the main loudspeaker 1 and transmitted to a far place, and the volume is greatly reduced, thereby playing the roles of protecting the personal privacy of a user and eliminating noise pollution.

In this embodiment, preferably, the amplitude of the muffled audio signal is smaller than or equal to the amplitude of the far-field audio signal.

Specifically, in this embodiment, the auxiliary speaker 2 that emits the muffling audio signal is disposed on the earpiece 8, closer to the ear of the wearer, and controls the amplitude of the muffling audio signal emitted therefrom, so that the intensity of the muffling audio signal is prevented from being too high, and interference of the muffling audio signal to the sound emitted from the main speaker 1 that needs to be normally listened to by the wearer can be avoided on the basis of ensuring the far-field muffling function.

In this embodiment, the main speaker 1 is preferably operatively configured to also generate a listening audio signal having a magnitude greater than the magnitude of the far-field audio signal.

Specifically, the listening audio signal is usually an audio signal emitted by the sound emitting side of the main speaker 1 and having a higher intensity towards the ear position of the wearer, so that the amplitude of the listening audio signal should be preferably larger than that of the far-field audio signal, so that the sound intensity of the listening audio signal is weaker and the sound intensity of the far-field audio signal is higher, and the sound leakage of the far-field audio signal is reduced as much as possible while the listening quality of the audio signal is ensured.

In this embodiment, it is preferable that the smart glasses are tested in advance, and sound generated by the main speaker 1 is measured at a predetermined spatial position with respect to the smart glasses, and the far-field audio signal including frequency response characteristics and phase characteristics is obtained;

and determining a sound attenuation audio signal capable of forming cancellation to the far-field audio signal according to the frequency response characteristic and the phase characteristic of the far-field audio signal.

Specifically, in an actual usage scenario, the location where the far-field audio signal strength is high is not constant based on factors such as complexity of the surrounding environment, performance and characteristics of the main speaker 1 and the auxiliary speaker 2, and so on; in this embodiment, the sound of the main speaker 1 is measured in advance at the position where the far-field audio signal with higher intensity is expected to be generated, so as to determine the parameters of the far-field audio signal emitted by the main speaker 1 at present, including the frequency response characteristic and the phase characteristic, where the frequency response characteristic specifically refers to the variation characteristic of the frequency response curve of the far-field audio signal, and the phase characteristic specifically refers to the phase of the far-field audio signal; and then according to the parameters of the far-field audio signal, the noise elimination audio signal which is used for being counteracted with the parameters is determined in a targeted manner, so that the phase of the noise elimination audio signal is opposite to that of the far-field audio signal, the strength of the noise elimination audio signal is proper, and the intelligent glasses are guaranteed to have ideal far-field noise elimination performance all the time in complex and changeable use scenes and environments.

In this embodiment, preferably, the earpiece 8 is provided with a second opening 6, the second opening 6 is communicated with the first accommodating cavity, and the orientation of the second opening 6 is different from that of the first opening 5;

the side of the main speaker 1 opposite to the sound emitting side communicates with the second opening 6.

Specifically, in this embodiment, the main speaker 1 adopts a diaphragm structure that is common to existing speakers, and the front of the diaphragm of the main speaker 1 is the main output direction of the audio signal, that is, the sound output side of the main speaker 1, and the sound emitted by the main speaker 1 is transmitted from the sound output side to the external environment through the first opening, so that the sound is heard by the wearer; when the vibrating diaphragm of the main loudspeaker 1 vibrates forwards and backwards, air is pushed to vibrate to generate sound, the phases of sound generated when the vibrating diaphragm vibrates forwards and backwards are opposite, and after two sound waves with opposite phases emitted by the main loudspeaker 1 are converged in the external environment, the two sound waves are mutually offset due to opposite phases, so that the effect of weakening a certain far-field audio signal is generated, and the effect is more obvious in a low-frequency sound frequency band; through auxiliary speaker 2 initiative output noise elimination audio signal, can play fine offset effect to the far field audio signal of high frequency, on this basis, this embodiment is through making the sound that the vibrating diaphragm backward vibration of main speaker 1 sent out pass out from second trompil 6, cross with the audio signal that the sound side sent of autonomous speaker 1 in external environment, also play auxiliary offset effect to the low frequency band of far field audio signal, the low frequency offset is offset with the high frequency and is organically combined, take effect jointly, simultaneously amortize to the far field audio signal of low frequency and high frequency, make the far field amortization performance of this smart glasses further promote.

Further preferably, the first opening 5 is directed to the lower side of the temple 8 and the second opening 6 is directed to the upper side of the temple 8.

Specifically, as shown in fig. 1-2, the first opening 5 faces to the lower side of the glasses leg 8, and can be as close to the position of the earhole of the wearer as possible when the intelligent glasses are worn, so that the full transmission of the audio signal to the earhole of the wearer is facilitated; the second opening 6 is arranged upwards, so that low-frequency audio signals generated when the vibrating diaphragm of the main loudspeaker 1 vibrates backwards can be directly and fully transmitted to the external environment, and the auxiliary offset effect of the low-frequency part of far-field audio signals can be realized; the second opening 6 is opposite to the first opening 5 in direction and far away from the position of the earhole of the wearer, and the audio signal sent by the second opening 6 can be prevented from interfering the audio signal sent by the first opening 5 and close to the earhole of the wearer, so that the audio listening quality is guaranteed.

In this embodiment, preferably, a side of the auxiliary speaker 2 opposite to the sound output side is a rear sound side, and the second receiving chamber closes the rear sound side.

Specifically, the auxiliary speaker 2 can output a sound-deadening audio signal to cancel the far-field audio signal output by the main speaker 1, so as to realize far-field sound deadening, and as mentioned above, if both the front sound cavity and the rear sound cavity of the speaker are communicated with the outside, a certain mutual cancellation effect is generated between the sound generated by the forward vibration of the speaker diaphragm and the sound generated by the backward vibration, and in order to ensure the intensity of the sound-deadening audio signal output by the auxiliary speaker 2 to make it have a sufficient cancellation effect on the far-field audio signal, the rear sound cavity, i.e. the rear sound side of the auxiliary speaker 2 is closed, so that the sound-deadening audio signal emitted by the auxiliary speaker 2 is prevented from being influenced by the low-frequency audio signal emitted by itself before the sound-deadening audio signal has not reached the far-field position, resulting in the far-field sound deadening function being not ideal.

In this embodiment, preferably, the arm 8 is provided with a plurality of first openings 5.

Specifically, in practical application, through setting the first trompil 5 to cellular or dot matrix form, can make the audio signal that supplies the person of hearing more even and concentrated output, promote audio signal's intensity in appointed direction, i.e. towards human earhole 3 direction, reduce audio signal's intensity in non-appointed direction, i.e. first trompil 5 surrounding direction to noise reduction and promotion privacy, and can also play the dustproof manger plate effect of certain degree.

In the present embodiment, preferably, the distance between the main speaker 1 and the predetermined human ear position is smaller than the distance between the auxiliary speaker 2 and the predetermined human ear position.

Specifically, as shown in fig. 1-2, the auxiliary speaker 2 is disposed at a greater distance from the human ear canal 3 than the main speaker 1, so that interference of the muffled audio signal emitted by the auxiliary speaker 2 to the normal audio signal listening by the human ear can be avoided, and the audio listening experience is ensured.

In this embodiment, preferably, the smart glasses include two glasses legs 8, and the two glasses legs 8 are separately disposed at two sides of the wearing body 9;

the main speakers 1 and the auxiliary speakers 2 arranged on the two glasses legs 8 form a stereoscopic sound field.

Specifically, as shown in fig. 1-2, in this embodiment, in addition to being able to output a sound-deadening audio signal, the auxiliary speaker 2 counteracts a far-field audio signal to enhance the privacy and low noise performance of the smart glasses, because the smart glasses provided in this embodiment are worn with a main speaker 1 and an auxiliary speaker 2 near the human earholes 3 on both sides, and the distances from the main speaker 1 and the auxiliary speaker 2 to the human earholes 3 are different, two sets of main speakers 1 and auxiliary speakers 2 can be combined into a surround sound speaker array, and a stereo sound field can be formed by controlling different time delays and phase differences of the playing sounds of the two main speakers 1 and the two auxiliary speakers 2, thereby realizing a surround sound effect and significantly enhancing the audiovisual experience of the user.

The present embodiment also provides another solution, specifically, a VR glasses, which has substantially the same structure as the smart glasses provided in the present embodiment, and is different in that the wearing body 9 is replaced by a related wearing component of the smart glasses.

In this solution, optionally, the earpiece 8 has a housing cavity therein, the housing cavity including a first housing cavity configured to house the main speaker 1 and a second housing cavity configured to house the auxiliary speaker 2, the first and second housing cavities not communicating with each other; the front cavity of the main loudspeaker 1 and the rear cavity of the main loudspeaker 1 are communicated with the first accommodating cavity, and the front cavity of the auxiliary loudspeaker 2 and the rear cavity of the auxiliary loudspeaker 2 are communicated with the second accommodating cavity.

The purpose of the above design is to isolate the space accommodating the main speaker 1 and the space accommodating the auxiliary speaker 2 from each other, so that the audio signals emitted by the two are not interfered with each other before being transmitted to the external environment, so as not to affect the far-field silencing effect.

In this scheme, optionally, the phase of the muffled audio signal is opposite to the phase of the far-field audio signal.

When the two audio signals are opposite in phase, the two signals meet to cancel each other. According to the preferred scheme, the phase of the silencing audio signal is adjusted to be opposite to that of the far-field audio signal, so that the best silencing effect can be achieved on the far-field audio signal.

Further optionally, the amplitude of the muffled audio signal is smaller than the amplitude of the far-field audio signal.

The aim of the design is to control the amplitude of the silencing audio signal so that the silencing audio signal can fully counteract the far-field audio signal, and meanwhile, the situation that the normal use experience of a user is influenced due to overlarge volume caused by overlarge amplitude is avoided.

Further alternatively, the audio signal output by the main speaker 1 further includes a listening audio signal having a magnitude greater than that of the far-field audio signal.

In the scheme, the audio signal is transmitted to the part of the user ear which is received by the user from the audio signal output by the main loudspeaker 1, and the amplitude of the audio signal is controlled to be larger than that of the far-field audio signal, so that the integral sound receiving effect of the loudspeaker can be improved, and excessive leakage and excessive noise are avoided; meanwhile, the amplitude of the far-field audio signal is larger than that of the silencing audio signal, which means that the amplitude of the listening audio signal is often obviously larger than that of the silencing audio signal, so that the influence on the listening audio signal caused by overhigh intensity of the silencing audio signal can be avoided, and the normal use experience of a user is interfered.

In this solution, optionally, the rear cavity of the auxiliary speaker 2 is closed and not in communication with the external environment.

The purpose of the above-mentioned design is, prevent auxiliary speaker 2 front chamber and back chamber all with external environment intercommunication, avoid auxiliary speaker 2 front chamber and back chamber output the opposite audio signal of phase place meet and offset each other in external environment, lead to auxiliary speaker 2 output's noise elimination audio signal intensity to weaken, the audio characteristics changes to the problem to far field audio signal's noise cancelling effect greatly reduced appears.

The scheme applies the main loudspeaker 1 and the auxiliary loudspeaker 2 capable of outputting the sound-deadening audio signal to the VR glasses of the common wearing equipment at present, and provides the user with an immersive and private audio-visual experience. The inside edge of the wearing main body 9 is provided with a structure which is fit with the outline around the human glasses, the inside surface is provided with a display screen component for the eyes of a user to watch, and the inside of the wearing main body 9 is provided with a control circuit module, a working circuit module, a lens, a power supply module and the like which are required by the normal operation of the VR glasses; the above structures are all common conventional arrangements at present, and will not be described in detail herein. The VR glasses provided in this embodiment set the silencing and speaker device in the glasses leg 8, on the one hand, skillfully utilizes the spare space at the glasses leg 8, and avoids the influence of excessive weight caused by setting too many devices inside the wearing main body 9; on the other hand, the glasses legs 8 are closer to the earholes of the user, so that the audio signals output by the main loudspeaker 1 can be transmitted to the ears of the user in a shorter stroke, and the power consumption, the sound quality and the loss of the sound volume are reduced as much as possible.

In this solution, optionally, the rear ends of the glasses legs 8 are bent downwards to form wearing parts configured to fit the outline of the auricle of the human body; the bottom surface of the glasses leg 8 is provided with a first opening 5, and the first opening 5 is configured such that when the wearing part is placed at the back of the auricle 4 of the human body, namely at the root of the human body ear, the first opening 5 is positioned at the front side of the human ear and is close to the earhole 3 of the human body; the front cavity of the main loudspeaker 1 is communicated with the external environment through a first opening 5; the glasses leg 8 top surface department is equipped with second trompil 6, and second trompil 6 position and first trompil 5 position are located corresponding, and main speaker 1 back chamber is through second trompil 6 and external environment intercommunication.

The first opening 5 is downwards arranged, the second opening 6 is upwards arranged, and the first opening 5 is configured to be close to the human ear hole 3, so that the listening audio signal is output to the external environment through the first opening 5 and received by the human ear, the listening audio signal is close to the external environment, the volume loss and the tone quality loss of the listening audio signal are lower, the listening of a user is clearer, meanwhile, the low-frequency audio signal output by the second opening 6 from the rear cavity of the main loudspeaker 1 is upwards spread and is not easy to be heard by the human ear, the low-frequency noise is reduced, and the influence of the cancellation of the intersection of the audio signal output from the rear cavity of the main loudspeaker 1 and the audio signal output from the front cavity of the main loudspeaker 1 near the human ear is avoided.

In this solution, further alternatively, the first openings 5 are provided in plurality. In practical application, through setting up first trompil 5 into cellular or dot matrix form, can make listening to the output that audio signal is more even and concentrated, promote audio signal's intensity in appointed direction that is towards human earhole 3 direction, reduce audio signal's intensity in non-appointed direction that is around first trompil 5 to noise reduction and promotion privacy, and can also play the dustproof manger plate effect of certain degree.

In this solution, optionally, a third opening 7 is further included, the third opening 7 is disposed at the outer side surface of the earpiece 8, and the third opening 7 is located in front of the first opening 5; the front cavity of the auxiliary speaker 2 communicates with the external environment through a third opening 7. In practical use, after the VR glasses provided in this embodiment are worn, the normal line of the outer side surface of the earpiece 8 is approximately in the horizontal direction. In consideration of the sound wave directivity of the speaker, the sound outlet is most effective in the opposite direction, so in this embodiment, the third opening 7 is provided on the outer side surface of the earpiece 8, and is used as the sound outlet for assisting the communication between the front cavity of the speaker 2 and the outside. Specifically, since in the present embodiment, the main speaker 1 is disposed inside the earpiece 8, and the earpiece 8 is located at two sides of the wearing body 9, the direction in which two sides of the wearing body 9 extend outwards is actually the main direction of far-field audio signal propagation, and the third opening 7 is disposed at the outer side of the earpiece 8 and in front of the first opening 5, so that the muffling audio signal sent by the auxiliary speaker 2 and the far-field audio signal meet as much as possible to cancel each other, and the muffling effect is better.

In the actual production design process, the position relation of the first opening 5, the second opening 6 and the third opening 7 needs to be finely adjusted according to experiments, and the purpose is to ensure that the silencing audio signal has a good counteracting effect on the far-field audio signal, and avoid the interference of the silencing audio signal on the listening audio signal and ensure good use experience of a user while playing a good far-field silencing effect.

In this scheme, auxiliary speaker 2 except can export the audio signal of silencing, offset with the privacy and the low noise performance that promote VR glasses to far field audio signal, because the VR glasses that this embodiment provided is when wearing, both sides human earhole 3 nearby has a main speaker 1 and auxiliary speaker 2, and main speaker 1 and auxiliary speaker 2 are different to human earhole 3's distance, two sets of main speaker 1 and auxiliary speaker 2 can make up into a surround sound speaker array, through the different delay and the phase difference of two main speakers 1 and two auxiliary speaker 2 broadcast sound of control, can realize surround the stereophonic effect, show the audio-visual experience that promotes the user.

The foregoing embodiments mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in consideration of brevity of line text, no further description is given here.

While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (10)

1. An intelligent eyeglass, comprising:

the glasses leg is arranged on the side face of the wearing body, a first accommodating cavity and a second accommodating cavity are formed in the glasses leg, a first opening is formed in the glasses leg, the first opening is communicated with the first accommodating cavity and faces to a preset ear position, a third opening is formed in the glasses leg, and the third opening is communicated with the second accommodating cavity and faces to the outer side of the glasses leg;

a primary speaker disposed within the first receiving cavity, the primary speaker having a sound emitting side, the sound emitting side of the primary speaker being in communication with the first aperture through a portion of the first receiving cavity;

an auxiliary speaker disposed within the second receiving cavity, the auxiliary speaker having a sound emitting side, the sound emitting side of the auxiliary speaker being in communication with the third aperture;

the main speaker is configured to generate a far-field audio signal when in operation, and the auxiliary speaker is configured to generate a muffling audio signal having a phase opposite to that of the far-field audio signal, the muffling audio signal being configured to cancel the far-field audio signal.

2. The smart glasses according to claim 1, wherein the amplitude of the muffled audio signal is less than or equal to the amplitude of the far-field audio signal.

3. The smart glasses according to claim 1, wherein the primary speaker is operatively configured to also produce a listening audio signal having a magnitude that is greater than a magnitude of the far-field audio signal.

4. The smart glasses according to claim 1, wherein the smart glasses are tested in advance, sound generated by the main speaker is measured at a predetermined spatial position with respect to the smart glasses, and the far-field audio signal is obtained, the far-field audio signal including a frequency response characteristic and a phase characteristic;

and determining a sound attenuation audio signal capable of forming cancellation to the far-field audio signal according to the frequency response characteristic and the phase characteristic of the far-field audio signal.

5. The intelligent glasses according to claim 1, wherein the glasses leg is provided with a second opening, the second opening is communicated with the first accommodating cavity, and the orientation of the second opening is different from that of the first opening;

the side of the primary speaker opposite the sound emitting side communicates with the second aperture.

6. The smart glasses according to claim 5, wherein the first aperture is directed downward of the temple and the second aperture is directed upward of the temple.

7. The smart glasses according to claim 1, wherein a side of the auxiliary speaker opposite the sound output side is a rear sound side, the second receiving cavity enclosing the rear sound side.

8. The pair of smart glasses according to claim 1, wherein a plurality of the first openings are formed in the temple.

9. The smart glasses according to claim 1, wherein a distance between the primary speaker and the predetermined human ear position is less than a distance between the auxiliary speaker and the predetermined human ear position.

10. The smart glasses according to claim 1, comprising two of the temples, the two temples being separately provided at both sides of the wearing body;

and the main speakers and the auxiliary speakers arranged on the two glasses legs form a stereoscopic sound field.

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