Patent Application
20240381017
The present application relates to but is not limited to the field of speech signal processing technologies, and in particular relates to but is not limited to a pickup, a communication device and a communication apparatus.
A communication apparatus usually uses a microphone to collect a sound signal. The microphone needs to collect sound through air vibration, so it is more difficult to design the waterproofing of a cavity structure of the microphone in places that require a high level of waterproof In addition, in a high-noise environment, a sound signal collected by the microphone has low signal-to-noise ratio, and the sound quality is poor.
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the protection scope of the claims.
A pickup is configured to be mounted to a bone conduction sound transmitting organ in a mouth. The pickup includes a detection module, and the detection module is configured to detect a vibration signal of the bone conduction sound transmitting organ.
A communication device includes a signal receiving module, a control module and a communication module. The control module is configured to be electrically connected with the signal receiving module and the communication module and capable of controlling the operation of the signal receiving module and the communication module. The signal receiving module is configured to be capable of receiving the signal of the aforementioned pickup, and the communication module is configured to be capable of transmitting the signal of the signal receiving module outward.
A communication apparatus includes the aforementioned pickup and the aforementioned communication device.
Other aspects will become apparent after reading and understanding the drawings and detailed description.
The drawings are used for providing a further understanding of technical solutions of the present application, and constitute a part of the specification. They are used together with embodiments of the present application to explain the technical solutions of the present application, and do not constitute a restriction on the technical solutions of the present application.
Embodiments of the present application will be described below with reference to the drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be arbitrarily combined with each other if there is no conflict.
An embodiment of the present application provides a pickup 100, as shown in
Compared with an air conduction microphone with the conversion from mechanical energy to electrical energy being completed by the vibration of air reaching the microphone, the pickup 100 of an embodiment of the present application directly collects the vibration signal on the bone conduction sound transmitting organ 200 provided in the oral cavity. When a person speaks, vibration of vocal cord drives vibration of skull, and the vibration of skull drives vibration of the bone conduction sound transmitting organ 200 in the oral cavity, such as a tooth or an alveolar bone. The bone conduction vibration energy generated on the skull is far greater than the air conduction vibration energy. Therefore, the vibration signal of tooth or alveolar bone collected by the detection module 1 is better than the signal collected by ordinary air conduction microphone and better than the signal collected by percutaneous bone conduction, so that the pickup 100 has the technical effect of high-definition pickup.
In addition, the detection module 1 for detecting the vibration signal of the bone conduction sound transmitting organ 200 is not sensitive to air vibration, but only sensitive to a solid vibration signal. Thus, there is no need to design an air conduction path structure, so that the waterproof design of the pickup 100 is easy to realize, and it has unique advantages for collecting vibration bone conduction speech signals in a high noise environment, and can collect self-bone conduction high-definition sound signals in the high noise environment.
In some exemplary embodiments, the detection module 1 includes at least one acceleration sensor. The acceleration sensor is a kind of sensor that can measure acceleration, which can be composed of a mass block, a damper, an elastic element, a sensitive element and an adaptive circuit and so on. According to difference in sensitive elements of the sensors, the acceleration sensors include a capacitive type sensor, an inductive type sensor, a strain type sensor, a piezoresistive type sensor, a piezoelectric type sensor, etc. The types of sensors are not limited herein.
Since the acceleration sensor is only sensitive to vibration signals, there is no need to design the air conduction path structure. Since the acceleration sensor does not require a design of air conduction path structure, the waterproof design of the pickup 100 is particularly easy, thereby simplifying the design and reducing the manufacturing cost. The acceleration sensor is sensitive to solid vibration and insensitive to air vibration, so it has unique advantages for collecting vibration bone conduction speech signals in a high noise environment.
At least one acceleration sensor is provided to detect vibration in at least one of a first direction, a second direction, and a third direction. That is, vibration signals in only one direction can be detected, vibration signals in two directions can be detected, or vibrations in all three directions can be detected, thereby improving flexibility in use of the pickup 100. The first direction, the second direction and the third direction are pairwise perpendicular to each other, that is, the first direction, the second direction and the third direction together form a three-dimensional coordinate system in space. As shown in
For example, at least one acceleration sensor can achieve a vibration detection in three directions, that is, the first direction, the second direction, and the third direction, and then combine the vibration signals in the three directions, so that the sound can be reproduced well, and has a certain degree of clarity.
In some exemplary embodiments, in order to realize the above-described detection of vibration signals in different directions, the acceleration sensor may be provided as one of a single-axis acceleration sensor, a two-axis acceleration sensor, or a three-axis acceleration sensor, or a combination of several acceleration sensors, and multiple acceleration sensors may be mounted on the bone conduction sound transmitting organ 200 in a superimposed manner. The single-axis acceleration sensor and three-axis acceleration sensor have their own advantages. The single-axis acceleration sensor has stronger directivity, while the three-axis acceleration sensor can superimpose and organize all vibration signals to realize signal collection with good reproduction effect, natural sound quality, good balance, and high fidelity.
In some exemplary embodiments, the detection module 1 includes multiple acceleration sensors with different bandwidths (different operating frequency bands) for detecting vibrations in the same direction (which may be one direction or two directions or three directions).
For example, for the first direction (such as X direction), two acceleration sensors with different bandwidths (which can be single-axis acceleration sensors) are used to collect low frequency and medium-high frequency signals along X direction, or medium-low frequency and high frequency signals respectively. The coordination of acceleration sensors with different bandwidths realizes the full-frequency detection of signals in a set direction, improves the detection bandwidth and the detection accuracy. A certain overlap of frequency values can be set between the detection frequencies of multiple bandwidths to avoid frequency leakage.
For example, for the first direction (e.g. X direction) and the second direction (e.g. Y direction), two acceleration sensors (which may be single-axis acceleration sensors) with different bandwidths are used in each direction to collect low frequency and medium-high frequency signals in X direction and low frequency and medium-high frequency signals in Y direction respectively, or to collect medium-low frequency and high frequency signals in X direction and medium-low frequency and high frequency signals in Y direction respectively. Operating frequency bands of the acceleration sensors for collecting low frequency or medium-low frequency signals in two directions may be configured to be the same or different, and operating frequency bands of the acceleration sensors for collecting high frequency or medium-high frequency signals in two directions may be configured to be the same or different.
Alternatively, for the first direction (e.g. X direction) and the second direction (e.g. Y direction), two acceleration sensors (which may be two-axis acceleration sensors) with different bandwidths may be used to collect low frequency signals along X direction and Y direction, and medium-high frequency signals along X direction and Y direction, or collect medium-low frequency signals along X direction and Y direction, and high frequency signals along X direction and Y direction, respectively.
It should be understood that the detection module may use other vibration sensors, such as a piezoelectric sensor, which can detect vibration, in addition to using the acceleration sensor(s) to collect a vibration signal of a tooth or alveolar bone.
In some exemplary embodiments, as shown in
The circuit board 7 is electrically connected with the detection module 1 and controls the operation of the detection module 1, and the power supply module 8 is configured to supply power to the circuit board 7 and the detection module 1.
In some exemplary embodiments, as shown in
In some other exemplary embodiments, as shown in
In yet some other exemplary embodiments, as shown in
The various mounting modes of the pickup 100 may increase the variety of product styles, thereby satisfying the usage habits and needs of different users.
In another embodiment of the present application, as shown in
The communication device 300 may receive the vibration signal detected by the detection module 1 of the pickup 100 and transmit the signal of the signal receiving module 6 outward through the communication module 8. At this time, the signal-to-noise ratio of the transmitted sound signal is high, and the interference of noise is reduced.
In some exemplary embodiments, the communication device 300 may be configured as an interphone and the communication module 8 may be configured to send and receive signals thereby enabling effective bi-directional transmission of information.
In some cases of interphone, it is necessary to collect sound signals conducted by air vibration through a microphone. The collected signals have serious noise interference. However, the acceleration sensor in the pickup 100 is sensitive to solid vibration signals and is insensitive to the noise caused by the ambient air disturbance, so that it can collect bone conduction signals of speakers in a high noise environment, and has excellent cost-effectiveness.
In some exemplary embodiments, the control module 7 is configured to place the interphone in a transmitting mode when a signal received by the signal receiving module 6 (i.e. a vibration signal detected by the detection module 1 of the pickup 100) coincides with a preset transmitting switch signal, and place the interphone in a receiving mode when the signal received by the signal receiving module 6 is inconsistent with the preset transmitting switch signal.
The interphone has two modes: transmitting and receiving. In the transmitting mode, user can speak and send his/her own words to others, and in the receiving mode, the user can listen to other people's speeches. In some cases of interphone, it has a call button. After pressing the call button, the interphone is in the transmitting mode, and after releasing the call button, the interphone is in the receiving mode.
In an interphone according to an embodiment of the present application, a transmitting switch signal is preset in the control module 7 of the interphone. When a user makes a specific sound, such as a regular sound (using the tongue to make tsk-tsk sounds or by teeth tapping, etc.), the detection module 1 of the pickup 100 can detect the sound signal and transmit it to the interphone. The control module 7 of the interphone can compare the signal with the preset transmitting switch signal. When the two signals are consistent, the control module 7 controls the interphone to be in the transmitting mode, and when the two signals are inconsistent, the control module 7 controls the interphone to be in the receiving mode.
The interphone is controlled to be in the transmitting mode or receiving mode by sound signals, which is convenient for people (or in special scenes) who have no hands or are inconvenient to control the interphone with hands, and improves the ease of use and the application range of the communication device 300.
It should be understood that the communication device 300 may be a device other than an interphone, for example, an extracorporeal device such as a mobile phone, an earphone, or the like.
In another embodiment of the present application, a communication apparatus is also provided. The communication apparatus includes the aforementioned pickup 100 and the aforementioned communication device 300.
In the description of the present application, it should be noted that the orientation or position relationships indicated by the terms “upper”, “lower”, “one side”, “the other side”, “one end”, “the other end”, “edge”, “relative”, “four corners”, “periphery” and “square structure” or the like are based on the orientation or position relationships shown in the drawings, which are only for convenience of describing the present application and simplifying the description, rather than indicating or implying that the structure referred has a specific orientation, or is constructed and operated in the specific orientation, and thus cannot be interpreted as a limitation on the present application.
In the description of the present application, it should be noted that the term “multiple/a plurality of” refers to two or more.
In the description of embodiments of the present application, the terms “connection”, “fixation”, “mounting” and the like should be understood broadly, unless otherwise expressly specified and limited. For example, the term “connection” may be a fixed connection, may be a detachable connection, or may be an integrated connection. The term “connection” may be direct connection or indirect connection through an intermediate medium, or may be an internal communication between two elements. For those of ordinary skills in the art, the specific meanings of the aforementioned terms in the present application may be understood according to specific situations.
It may be understood by those of ordinary skills in the art that all or some steps in a method and function modules/units in a system and a device disclosed in the above description may be implemented as software, firmware, hardware, or an appropriate combination thereof. In a hardware implementation, division of the function modules/units mentioned in the above description does not necessarily correspond to division of physical assemblies. For example, a physical assembly may have multiple functions, or a function or a step may be executed by several physical assemblies in cooperation. Some assemblies or all assemblies may be implemented as software executed by a processor such as a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit such as an application specific integrated circuit. Such software may be distributed in a computer-readable medium, and the computer-readable medium may include a computer storage medium (or a non-transitory medium) and a communication medium (or a transitory medium). As known to those of ordinary skill in the art, a term “computer storage medium” includes volatile and nonvolatile, and removable and irremovable media implemented in any method or technology for storing information (for example, computer-readable instructions, a data structure, a program module, or other data). The computer storage medium includes, but is not limited to, RAM, ROM, EEPROM, a flash memory, or another memory technology, CD-ROM, a Digital Versatile Disk (DVD) or another optical disk storage, a magnetic box, a magnetic tape, magnetic disk storage or another magnetic storage apparatus, or any other media that may be used for storing desired information and may be accessed by a computer. In addition, it is known to those of ordinary skills in the art that the communication medium usually includes computer-readable instructions, a data structure, a program module, or other data in a modulated data signal such as a carrier or another transmission mechanism, and may include any information delivery medium. Furthermore, when describing representative embodiments, the specification may have presented a method and/or process as a particular sequence of steps. However, to the extent that the method or process does not depend on the specific order of steps described herein, the method or process should not be limited to the specific order of steps described. As will be understood by those of ordinary skills in the art, other order of steps is also possible. Accordingly, a particular order of steps set forth in the specification should not be construed as limitations on the claims. Furthermore, the claims for the method and/or process should not be limited to the steps which are performed in the written order. Those skilled in the art can readily understand that these orders can be changed and the changed orders still remain within the spirit and scope of the embodiments of the present application.
Although implementations disclosed herein are described above, the described contents are only implementations used for facilitating understanding of the present application, and are not intended to limit the present application. Without departing from the spirit and scope disclosed herein, any person skilled in the art to which the present application pertains may make any modifications and changes in the form and details of implementation, but the scope of patent protection of the present application shall still be defined by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202111026882.5 | Sep 2021 | CN | national |
The present application is a U.S. National Phase Entry of International PCT Application No. PCT/CN2021/129063 having an international filing date of Nov. 5, 2021, which claims priority to Chinese Patent Application No. 202111026882.5 filed on Sep. 2, 2021. The above-identified applications are incorporated by reference herein in their entireties.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2021/129063 | 11/5/2021 | WO |
