CN207752466U - A kind of sound card device - Google Patents
A kind of sound card device Download PDFInfo
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- CN207752466U CN207752466U CN201820070294.9U CN201820070294U CN207752466U CN 207752466 U CN207752466 U CN 207752466U CN 201820070294 U CN201820070294 U CN 201820070294U CN 207752466 U CN207752466 U CN 207752466U
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Abstract
The utility model embodiment provides a kind of sound card device, is related to multimedia technology field, to solve the problems, such as that the usage experience that existing sound card is brought to user is poor.Wherein, the sound card device includes sound card ontology, and sound card ontology includes：For single function audio interface or the first audio interface of Multifunctional audio interface；The governor circuit being connect with the first audio interface, including sonic boom processing unit；The voice acoustic pressure circuit for detecting being connect with governor circuit, also connect with sonic boom processing unit；Sound card device further includes the first tone frequency channel wire, the both ends of first tone frequency channel wire are respectively equipped with the first audio connector and the second audio connector, first audio connector is pluggable to be connected in the first audio interface, and the second audio connector is pluggable to be connected in the second audio interface of mobile device；Wherein, the type matching of the first tone frequency channel wire, the first audio connector and the second audio connector with the first audio interface.The sound card device that the utility model embodiment is provided is for live streaming etc..
Description
Technical Field
The utility model relates to a multi-media technical field especially relates to a sound card device.
Background
With the continuous development of network technology, more and more live broadcast software is available. The user can share the living environment, personal talent and the like with more people in a live broadcast mode.
The sound card is a common device for live broadcasting, can play a role in transmitting sound data between audio equipment and live broadcasting software, and can also perform sound processing such as sound mixing and the like so as to enable the live broadcasting effect to be the best.
At present, a computer is a common device for live broadcasting of a user, and therefore a USB interface is provided on a sound card, so that the user can respectively plug two ends of a data line into the USB interface of the sound card and the USB interface of the computer to realize transmission between sound data in the computer and sound data in the sound card. In order to meet the requirements of users on portability and the like, the mobile equipment gradually replaces a computer, but the USB interface of the sound card cannot identify sound data in the mobile equipment, so that the users cannot continue to use the sound card, and the user experience is poor; in addition, when the user is broadcasting directly, audio equipment such as a microphone is usually used for picking up the voice of the user during broadcasting directly and recording the voice into the sound card, but the user does not know the voice condition of the user, especially when the recorded voice is loud, the live broadcast effect is greatly influenced, and the user experience is poor.
In summary, the existing sound card brings poor use experience to users.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem that will solve provides a sound card device to solve the current sound card and experience relatively poor problem for the use that the user brought.
In order to solve the problem, the utility model discloses a sound card device, including the sound card body, the sound card body includes: the first audio interface is a single-function audio interface or a multifunctional audio interface; the main control circuit is connected with the first audio interface and comprises a popping processing unit; the human sound pressure detection circuit is connected with the master control circuit and is connected with the popping processing unit; the sound card device further comprises a first audio line, a first audio connector and a second audio connector are arranged at two ends of the first audio line respectively, the first audio connector is connected in the first audio interface in a pluggable mode, and the second audio connector is connected in a second audio interface of the mobile equipment in a pluggable mode; wherein the first audio line, the first audio connector and the second audio connector are all matched with the type of the first audio interface.
Compared with the prior art, the embodiment of the utility model provides an including following advantage:
on one hand, the sound card device of the embodiment of the present invention includes a sound card body and a first audio cable, the sound card body includes a first audio interface, a first audio connector at one end of the first audio cable can be connected in the first audio interface, a second audio connector at the other end of the first audio cable can be connected in a second audio interface of the mobile device, so as to realize the connection between the sound card and the mobile device, meanwhile, the first audio interface, the first audio connector, the first audio cable and the second audio connector are of the same type, i.e. all are of a single-function audio type, or all are of a multi-function audio type, whichever type, the audio transmission can be realized, and further the transmission between the audio signal in the sound card and the audio signal in the mobile device can be completed, especially when the first audio interface, the first audio connector, the first audio cable and the second audio connector are all of the multi-function audio type, the transmission of other data signals in the sound card and corresponding data signals in the mobile device may also be achieved. Furthermore, the first audio interface is connected with the main control circuit, so that the main control circuit can process the transmitted audio signals to optimize the live broadcast effect.
On the other hand, the sound card body also comprises a human voice and sound pressure detection circuit, when the sound card records the sound of the user, the human voice and sound pressure detection circuit can carry out real-time sound pressure on the recorded sound, and the detected sound pressure result can be displayed on the sound card body in a dynamic graph mode so as to bring a changing rhythm dynamic sense to the user; in addition, if the phenomenon of human voice distortion occurs in the detection process, the popping processing unit in the main control circuit can process the distorted human voice so as to avoid the popping effect in the live broadcast and further optimize the live broadcast effect.
To sum up, the utility model discloses sound card device not only can realize and the mobile device between the transmission of audio signal, but also the acoustic pressure of real-time supervision user's sound, the user knows to some extent the sound condition of typeeing, especially when the distortion phenomenon appears in the voice of typeeing, can in time solve to avoid appearing the plosive phenomenon, it is visible, bring good use for the user and experience.
Drawings
Fig. 1 is an exploded view of a sound card device according to an embodiment of the present invention connected to a mobile device;
fig. 2 is a first line block diagram of the connection of the sound card apparatus of the embodiment of the present invention with an external device;
fig. 3 is a second line block diagram of the connection of the sound card apparatus of the embodiment of the present invention with an external device;
fig. 4 is a plan view of a sound card body of an embodiment of the present invention;
fig. 5 is a structural diagram of a sound card body according to an embodiment of the present invention;
fig. 6 is an exploded view of the connection of the sound card device of the embodiment of the present invention with an external device;
fig. 7 is a side view of the sound card body according to the embodiment of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 to 3, the present embodiment provides a sound card device, including a sound card body 10, where the sound card body 10 includes: the first audio interface 11, the first audio interface 11 is a single-function audio interface or a multifunctional audio interface; the main control circuit 12, the main control circuit 12 is connected with the first audio interface 11, the main control circuit 12 includes a pop processing unit; the human sound pressure detection circuit 13 is connected with the main control circuit 12, and the human sound pressure detection circuit 13 is connected with the pop processing unit; the sound card device further comprises a first audio line 20, a first audio connector 21 and a second audio connector 22 are respectively arranged at two ends of the first audio line 20, the first audio connector 21 is connected in the first audio interface 11 in a pluggable manner, and the second audio connector 22 is connected in a second audio interface of the mobile equipment 30 in a pluggable manner; wherein the first audio line 20, the first audio connector 21 and the second audio connector 22 are all matched with the type of the first audio interface 11.
In this embodiment, the first audio interface 11 is disposed on the sound card body 10, in one case, the first audio interface 11 is a single-function audio interface, and correspondingly, the first audio connector 21 on the first audio line 20 can be plugged into the first audio interface 11, and the second audio connector 22 on the first audio line 20 can be plugged into the second audio interface of the mobile device 30, because the first audio interface 11 is a single-function audio interface, the first audio line 20, and the first audio connector 21 and the second audio connector 22 at two ends of the first audio line 20 are both of a single-function audio type, so that audio signal transmission between the sound card and the mobile device 30 can be realized. In another case, the first audio interface 11 is a multifunctional audio interface, and correspondingly, the first audio connector 21 on the first audio line 20 can be plugged into the first audio interface 11, and the second audio connector 22 on the first audio line 20 can be plugged into the second audio interface of the mobile device 30, because the first audio interface 11 is a multifunctional audio interface, the first audio line 20 and the first audio connector 21 and the second audio connector 22 at two ends of the first audio line 20 are both of a multifunctional audio type, so that audio signal transmission between the sound card and the mobile device 30 and other signal transmission between the sound card and the mobile device 30, such as charging current signal transmission, can be realized. In any case, when the mobile device 30 is used as a live device, live audio signals in the mobile device 30 can be transmitted to the sound card, so that the main control circuit 12 of the sound card can process the audio signals transmitted at the first audio interface 11, the processed audio signals are transmitted to the mobile device 30, and the processed audio signals are used in live software, so that the live effect can be optimized.
In addition, a human sound pressure detection circuit 13 is arranged on the sound card body 10, the human sound pressure detection circuit 13 is connected with the main control circuit 12, the human sound pressure detection circuit 13 is used for detecting sound pressure of sound recorded in the sound card, especially the human sound pressure recorded in the sound card, the detected sound pressure can be presented to a user after being processed by the main control circuit 12, and for example, the detected sound pressure can be presented in a dynamic change pattern form, so that the user can know own sound, and meanwhile, the dynamic change pattern is dynamic to people, and the live broadcast effect is strengthened. Especially when the distortion phenomenon appears in the voice of typing-in, the main control circuit 12 has set up the plosive processing unit, and the plosive processing unit can in time handle the voice of distortion to the pop appears in avoiding living broadcasting, has further optimized the live broadcast effect.
In conclusion, the sound card device for connecting the mobile device 30 provided by the embodiment meets the user requirements, presents the sound pressure change of the human voice to the user, and can well avoid the popping phenomenon, and thus the sound card device of the embodiment brings good use experience to the user.
Preferably, the pop processing unit may be a part of the circuit in the main control circuit 12.
The mobile device 30 includes a mobile phone, a tablet, a notebook computer, and the like.
Preferably, the single-function audio interface is a 3.5mm audio interface, and the first audio connector 21 is a 3.5mm four-section audio connector.
The 3.5mm audio interface may implement transmission of audio signals, and correspondingly, in order to match with the 3.5mm audio interface, the first audio connector 21 may be a 3.5mm audio connector, and more preferably, the 3.5mm audio connector may be a 3.5mm four-section audio connector. Wherein, the 3.5mm four-section audio connector can comprise a left sound channel end, a right sound channel end, a microphone end and a grounding end.
Preferably, the multifunctional audio interface is a Lightning (Lightning) interface or a Type C interface.
The Lightning interface or the Type C interface is an interface capable of transmitting audio signals and current signals, so that when the mobile device 30 is connected to the sound card through the first audio line 20, not only the transmission and processing of the audio signals can be realized, but also a charging function can be realized, that is, the current in the battery of the sound card can charge the battery in the mobile device 30. In this scheme, in order to implement the charging function, correspondingly, the second audio interface on the mobile device 30 must also be a Lightning interface or a Type C interface.
Referring to fig. 2, further, the sound card body 10 further includes a touch display screen 14 connected to the main control circuit 12; the touch display screen 14 comprises a touch layer and a display layer which are sequentially stacked, and the touch display screen 14 is divided into a display area 141 and a virtual key area 142; the human voice sound pressure detection circuit 13 detects the picked-up full-band human voice sound pressure, and the display area 141 displays a dynamic human voice sound pressure waveform diagram.
The sound card body 10 of the present embodiment may include the touch display screen 14, and the touch display screen 14 occupies a larger proportion on the surface of the sound card body 10, so that the sound card body 10 is more beautiful in appearance, and the user operation is more convenient in practical terms. Touch display screen 14 is including the touch-control layer and the display layer of folding establishing, touch display screen 14 still is connected with main control circuit 12, thereby the touch-control layer can realize the touch action of user at sound card body 10 operation, make user convenient operation, use experience is better, and the display layer can realize the display function again, if can show user's operation, the function control of sound card, volume control, the audio is adjusted etc. the audio visually mode of seeing the sound card of user, state and function etc. make the user watch conveniently, use experience is better.
In one of the touch display screens 14, the whole display surface of the touch display screen 14 may be divided into a display area 141 and a virtual key area 142, and a portion of the display area 141 corresponding to the touch display screen 14 is connected to the main control circuit 12 for displaying, and particularly, when the human sound pressure detection circuit 13 detects the picked-up full-band human sound pressure, the display area 141 may display a dynamic waveform of the human sound pressure; the virtual key area 142 is connected to the main control circuit 12 corresponding to the portion of the touch display screen 14 for implementing keys, and the virtual key area 142 has virtual keys with multiple functions, such as sound effect keys.
The touch screen 14 may be a Liquid Crystal Display (LCD) touch screen. Compared with a touch screen without a display screen or a Light-Emitting Diode (LED) dot matrix screen, the LCD touch screen can display pictures and dynamic pictures, and user experience is better.
Referring to fig. 3 and 4, in another scheme, the sound card body 10 further includes an LCD display 151 and a physical key pad 152, and the LCD display 151 and the physical key pad 152 are respectively connected to the main control circuit 12; the human voice sound pressure detection circuit 13 detects the picked-up full-band human voice sound pressure, and the LCD 151 displays a dynamic human voice sound pressure waveform diagram.
In the scheme, an LCD display screen 151 and a physical key keyboard 152 are adopted, and the LCD display screen 151 can be used for displaying the operation mode, the state, the function and the like of the sound card such as the operation of a user, the function adjustment of the sound card, the volume adjustment, the sound effect adjustment and the like, so that the user can conveniently watch the sound card; the physical keypad 152 includes a variety of function keys, such as sound keys, for user manipulation.
After the sound card picks up the voice, the voice sound pressure detection circuit 13 detects the voice sound pressure and transmits the detected voice sound pressure to the main control circuit 12, and the main control circuit 12 processes the voice sound pressure and displays the voice sound pressure on the LCD display screen 151, so that a dynamic voice sound pressure change diagram can be displayed on the LCD display screen 151, wherein the change diagram can be in various forms, and different colors can be displayed according to different frequency bands; the full frequency band of the sound pressure of the human voice can be displayed on the LCD 151, so that the waveform of the sound pressure of the human voice can be displayed on the LCD. However, no matter which kind of change chart, the change of the existing dynamic rhythm can be presented on the LCD display screen 151, so as to give people a dynamic effect, and the user experience is better.
In a more preferable embodiment, the human sound pressure detection circuit 13 is not limited to detecting the sound pressure of human sound, but may also detect the sound pressure of audio signals such as music, so as to display a dynamic sound pressure waveform pattern on the LCD display 151 or the display area 141, to create a dynamic rhythm, and render a live broadcast atmosphere.
Of course, the principle of displaying the waveform diagram of the human voice sound pressure in the display area 141 in the previous embodiment is the same, and the description thereof is omitted.
Referring to fig. 1 to 3, further, the sound card body 10 further includes a charging interface 161, a charging circuit 162, and a battery structure 163, which are connected in sequence, wherein the charging interface 161 is connected to an external power device through a data line, and the battery structure 163 is connected to the main control circuit 12.
In this embodiment, a power supply scheme of the sound card device is provided, and the battery structure 163 can be selected to supply power to the main control circuit 12, so that the sound card can normally work, and the battery structure 163 can realize the mobility of the sound card, so that the sound card is convenient to carry, and the use experience of a user is improved. Further, the battery structure 163 is a chargeable structure, and when the charging interface 161 is connected to an external power device through a data line, current in the external power device can charge the battery structure 163 through the charging interface 161, so that the battery structure 163 is recycled, and is more environment-friendly.
In further aspects, the charging circuit 162 is coupled to the master control circuit 12 to implement further power optimization schemes.
Referring to fig. 2, 3, 5 and 6, the sound card body 10 further includes a bluetooth circuit 171, a third audio interface 172 and an external accompaniment input circuit 173, wherein the bluetooth circuit 171 is connected to the external accompaniment apparatus 50 through wireless data transmission, and the bluetooth circuit 171 is connected to the main control circuit 12; the third audio interface 172 is connected to the external accompaniment apparatus 50 through the second audio line 40, and the third audio interface 172, the external accompaniment input circuit 173 and the main control circuit 12 are sequentially connected.
In this embodiment, there are two ways of inputting the accompaniment, one is to install a bluetooth antenna at the side 101 of the sound card body 10 for receiving bluetooth signals, so that the bluetooth function of the external accompaniment apparatus 50 can perform unidirectional data transmission with the bluetooth circuit 171, the accompaniment audio of the external accompaniment apparatus 50 is transmitted to the sound card, and the sound card performs mixing processing on the accompaniment, the voice, etc., where the dotted lines in fig. 2 and 3 represent bluetooth data transmission; the second is to input accompaniment by connecting a second audio line 40 between the sound card body 10 and an external accompaniment device 50. These two ways enable wireless and wired connection of the sound card to the external accompaniment apparatus 50, respectively.
In addition, accompaniment may also be input to the sound card from live software used in the mobile device 30.
The external accompaniment device 50 includes various audio devices such as a mobile phone, a tablet, a notebook, etc.
Preferably, the third audio interface 172 includes any one of a 3.5mm audio interface, a Lightning interface, and a Type C interface.
The third audio interface 172 may include various types of audio interfaces to accommodate different audio interfaces of the external accompaniment apparatus 50 while providing more options.
Referring to fig. 2, fig. 3, fig. 6 and fig. 7, further, the sound card body 10 further includes a fourth audio interface 181, a pre-amplifier circuit 182, a Digital-to-Analog Converter (DAC) 183 and a DSP signal processing circuit 184, which are connected in sequence; the fourth audio interface 181 is connected to an external human voice pickup device 70 through a third audio line 60, the pre-amplifier circuit 182 is connected to the human voice sound pressure detection circuit 13, and the DSP signal processing circuit 184 is connected to the main control circuit 12; the fourth audio interface 181 includes any one of a 3.5mm audio interface, a Lightning interface, and a Type C interface; the sound card body 10 further includes a voice input circuit 185, and the voice input circuit 185 is connected between the first audio interface 11 and the main control circuit 12.
In this embodiment, a scheme of voice recording is provided, where the external voice pickup device 70 is used to pick up the voice during live broadcasting, such as the voice of a main broadcasting, the external voice pickup device 70 may be a microphone device, the voice picked up by the microphone device is processed by the preamplifier circuit 182, the digital-to-analog conversion circuit 183 and the DSP signal processing circuit 184 in sequence, and the processed voice may be mixed with other audio frequencies in the main control circuit 12, so as to achieve the purpose of optimizing the live broadcasting effect.
In addition, the voice processed by the pre-amplifying circuit 182 is subjected to sound pressure detection by the voice sound pressure detection circuit 13, and the main control circuit 12 can also process distorted voice while detecting, so that the voice (including popping processing and other processing) processed by the main control circuit 12 is recorded by the voice recording circuit 185 and transmitted to the live broadcasting software from the first audio interface 11, and thus, the voice after being optimized further improves the live broadcasting effect to improve the use experience of the user.
Preferably, the DSP Signal Processing circuit 184 is a Digital Signal Processing (DSP) circuit.
Referring to fig. 2, 3, 6 and 7, further, the sound card body 10 further includes a fifth audio interface 191 and a monitoring amplifying circuit 192 connected thereto; the fifth audio interface 191 is connected to the external monitoring device 80, and the monitoring amplifier circuit 192 is connected to the main control circuit 12.
In this scheme, the external monitoring device 80 is used to monitor the sound effect during live broadcasting, the external monitoring device 80 may be an earphone device, and various audio frequencies processed by the main control circuit 12 are processed by the monitoring amplifying circuit 192 and then played in the external monitoring device 80, so that the user can monitor the live broadcasting effect in real time, thereby further improving the user experience.
Wherein, when the external monitoring device 80 is a line control earphone, it can also be used for sound pickup.
Referring to fig. 2 and 3, further, the sound card body 10 may further include other input/output (I/O) communication interfaces 110, and the other I/O communication interfaces 110 are connected to the main control circuit 12, so as to implement more functions and improve the user experience.
Referring to fig. 7, further, the sound card body 10 further includes a power switch 120 to control the switching of the sound card.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The sound card device provided by the present invention is introduced in detail, and the principle and the implementation of the present invention are explained by applying specific examples, and the descriptions of the above examples are only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (10)
1. A sound card device, includes the sound card body, its characterized in that, the sound card body includes:
the first audio interface is a single-function audio interface or a multifunctional audio interface;
the main control circuit is connected with the first audio interface and comprises a popping processing unit;
the human sound pressure detection circuit is connected with the master control circuit and is connected with the popping processing unit;
the sound card device further comprises a first audio line, a first audio connector and a second audio connector are arranged at two ends of the first audio line respectively, the first audio connector is connected in the first audio interface in a pluggable mode, and the second audio connector is connected in a second audio interface of the mobile equipment in a pluggable mode;
wherein the first audio line, the first audio connector and the second audio connector are all matched with the type of the first audio interface.
2. The sound card device of claim 1, wherein the single-function audio interface is a 3.5mm audio interface, and the first audio connector is a 3.5mm four-node audio connector.
3. The sound card device of claim 1, wherein the multi-function audio interface is a Lightning interface or a Type C interface.
4. The sound card device of claim 1, wherein the sound card body further comprises a touch display screen connected to the main control circuit;
the touch display screen comprises a touch layer and a display layer which are sequentially overlapped, and the touch display screen is divided into a display area and a virtual key area;
the human sound pressure detection circuit detects the picked full-frequency-band human sound pressure, and the display area displays a dynamic oscillogram of the human sound pressure.
5. The sound card device according to claim 1, wherein the sound card body further comprises an LCD display screen and a physical key keyboard, the LCD display screen and the physical key keyboard being connected to the main control circuit, respectively;
the human sound pressure detection circuit detects the picked full-frequency-band human sound pressure, and the LCD displays a dynamic oscillogram of the human sound pressure.
6. The sound card device according to claim 1, wherein the sound card body further comprises a charging interface, a charging circuit and a battery structure, which are connected in sequence, wherein the charging interface is connected with an external power supply device through a data line, and the battery structure is connected with the main control circuit.
7. The sound card device of claim 1, wherein the sound card body further comprises a Bluetooth circuit, a third audio interface, and an external accompaniment input circuit, wherein,
the Bluetooth circuit is connected with external accompaniment equipment through wireless data transmission and is connected with the main control circuit;
the third audio interface pass through the second audio line with outside accompaniment equipment connects, the third audio interface external accompaniment input circuit with master control circuit connects gradually.
8. The sound card apparatus of claim 7, wherein the third audio interface comprises any one of a 3.5mm audio interface, a Lightning interface, and a Type C interface.
9. The sound card device according to claim 1, wherein the sound card body further comprises a fourth audio interface, a pre-amplifier circuit, a digital-to-analog conversion circuit and a DSP signal processing circuit, which are connected in sequence; wherein,
the fourth audio interface is connected with external voice pickup equipment through a third audio line, the preamplification circuit is connected with the voice sound pressure detection circuit, and the DSP signal processing circuit is connected with the main control circuit;
the fourth audio interface comprises any one of a 3.5mm audio interface, a Lightning interface and a Type C interface;
the sound card body still includes the voice and types the circuit, the voice type circuit is connected first audio interface with between the master control circuit.
10. The sound card device of claim 1, wherein the sound card body further comprises a fifth audio interface and a monitoring amplifying circuit connected to each other; wherein,
the fifth audio interface is connected with an external monitoring device, and the monitoring amplifying circuit is connected with the main control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820070294.9U CN207752466U (en) | 2018-01-16 | 2018-01-16 | A kind of sound card device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820070294.9U CN207752466U (en) | 2018-01-16 | 2018-01-16 | A kind of sound card device |
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| CN207752466U true CN207752466U (en) | 2018-08-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111200774A (en) * | 2018-11-18 | 2020-05-26 | 北京塞宾科技有限公司 | Bluetooth sound card |
| CN108062218B (en) * | 2018-01-16 | 2023-12-05 | 北京唱吧科技股份有限公司 | Sound card device |
-
2018
- 2018-01-16 CN CN201820070294.9U patent/CN207752466U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108062218B (en) * | 2018-01-16 | 2023-12-05 | 北京唱吧科技股份有限公司 | Sound card device |
| CN111200774A (en) * | 2018-11-18 | 2020-05-26 | 北京塞宾科技有限公司 | Bluetooth sound card |
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