A Bluetooth speaker device and electronic equipment

Abstract

The utility model discloses a kind of bluetooth speaker device and electronic equipment, device includes: bluetooth transparent transmission module, delay synchronization module, power amplifier module, bluetooth receiving module, main speaker and auxiliary speaker;Bluetooth transparent transmission module is used to receive audio signal and respectively send audio signal to delay synchronization module and bluetooth receiving module;Bluetooth receiving module is connected with auxiliary speaker, and bluetooth receiving module is used to send audio signal to auxiliary speaker;Delay synchronization module is connected with bluetooth transparent transmission module and power amplifier module respectively, and delay synchronization module is used to prolong the time of audio signal sending to power amplifier module;Power amplifier module is connected with main speaker, and power amplifier module is used to amplify processing and send audio signal to the main speaker.The application adopts delay synchronization module to delay the time of audio signal sending to power amplifier module, so that the time of audio signal transmission to bluetooth receiving module and power amplifier module is substantially synchronous, so that the sound of main speaker and auxiliary speaker can be synchronized.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a Bluetooth speaker device and electronic device. Background Technology

[0002] Speakers are becoming increasingly widely used. For example, to increase the volume of electronic devices such as televisions and mobile phones, speakers are connected to achieve amplification. There are two types of speakers: wired and Bluetooth. To improve the sound quality of electronic devices, Bluetooth speakers are often added to achieve better audio performance.

[0003] However, existing Bluetooth speaker solutions typically include a main speaker and a secondary speaker, and there is a latency issue between the main speaker and the secondary speaker, which causes the sound of the main speaker and the secondary speaker to be out of sync.

[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a Bluetooth speaker device and electronic device to solve the problem that the sound of the Bluetooth main speaker and Bluetooth secondary speaker of the existing electronic device cannot be synchronized.

[0006] The technical solution of this utility model is as follows: In a first aspect, this utility model provides a Bluetooth speaker device, comprising: a Bluetooth pass-through module, a delay synchronization module, a power amplifier module, a Bluetooth receiver module, a main speaker, and a secondary speaker; wherein... The Bluetooth pass-through module is used to receive audio signals and send the audio signals to the delay synchronization module and the Bluetooth receiving module respectively. The Bluetooth receiving module is connected to the secondary speaker, and the Bluetooth receiving module is used to send audio signals to the secondary speaker; The delay synchronization module is connected to both the Bluetooth pass-through module and the power amplifier module. The delay synchronization module is used to extend the time it takes for the audio signal to be sent to the power amplifier module. The power amplifier module is connected to the main speaker, and the power amplifier module is used to amplify the audio signal and send it to the main speaker.

[0007] In a further embodiment of this invention, the delay synchronization module is a lip-sync circuit, which is connected between the Bluetooth pass-through module and the power amplifier module. The lip-sync circuit is used to fix the time delay for the audio signal to be sent to the power amplifier module.

[0008] In a further embodiment of this invention, the lip-sync circuit includes a lip-sync chip; the lip-sync chip is model TPA5052.

[0009] In a further embodiment of this invention, the power amplifier module includes a power amplifier chip, which is connected to the main speaker.

[0010] In a further embodiment of this invention, the Bluetooth receiving module includes a first Bluetooth receiving module for receiving the audio signal and a second Bluetooth receiving module for receiving the audio signal.

[0011] In a further embodiment of this invention, the secondary speaker includes a first secondary speaker and a second secondary speaker; the first secondary speaker is connected to the first Bluetooth receiving module; and the second secondary speaker is connected to the second Bluetooth receiving module.

[0012] Secondly, this utility model also provides an electronic device, which includes a device body and a Bluetooth speaker device as described above.

[0013] In a further embodiment of this invention, the device body includes a system-on-a-chip, and the Bluetooth pass-through module is disposed on the system-on-a-chip.

[0014] In a further embodiment of this invention, the main speaker and the auxiliary speaker are mounted on the device body.

[0015] In a further embodiment of this invention, the electronic device is a television set.

[0016] This utility model provides a Bluetooth speaker device and electronic device. The Bluetooth speaker device includes: a Bluetooth pass-through module, a delay synchronization module, a power amplifier module, a Bluetooth receiver module, a main speaker, and a secondary speaker. The Bluetooth pass-through module receives audio signals and sends them to the delay synchronization module and the Bluetooth receiver module respectively. The Bluetooth receiver module is connected to the secondary speaker and sends the audio signals to it. The delay synchronization module is connected to both the Bluetooth pass-through module and the power amplifier module, and extends the time it takes for the audio signals to reach the power amplifier module. The power amplifier module is connected to the main speaker and amplifies the audio signals before sending them to it. This utility model uses a delay synchronization module to delay the time it takes for the audio signals to reach the power amplifier module, making the transmission times of the audio signals to the Bluetooth receiver module and the power amplifier module essentially synchronized, thereby allowing the sound from the main speaker and the secondary speaker to be synchronized. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the Bluetooth speaker device in this utility model.

[0019] Figure 2 This is a circuit diagram of a system-on-a-chip, a lip-sync chip, and a power amplifier chip in one embodiment of this utility model.

[0020] The labels in the attached diagram are as follows: 100, device body; 200, Bluetooth pass-through module; 300, delay synchronization module; 400, power amplifier module; 500, Bluetooth receiver module; 510, first Bluetooth receiver module; 520, second Bluetooth receiver module; 600, main speaker; 700, secondary speaker; 710, first secondary speaker; 720, second secondary speaker. Detailed Implementation

[0021] This utility model provides a Bluetooth speaker device and electronic device. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit this utility model.

[0022] In the implementation methods and claims, unless otherwise specified in the text, the terms "a," "an," "the," and "the" may also include plural forms. If the embodiments of this utility model involve descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0023] It should be further understood that the term "comprising" as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when an element is referred to as "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements present. Furthermore, "connected" or "coupled" as used herein can include wireless connections or wireless coupling. The term "and / or" as used herein includes all or any of the units and all combinations thereof of one or more associatedly listed items.

[0024] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0025] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] Please also refer to Figures 1 to 2 This utility model provides a preferred embodiment of a Bluetooth speaker device.

[0027] In some embodiments, such as Figure 1 As shown, the present invention provides a Bluetooth speaker device, comprising: a Bluetooth pass-through module 200, a delay synchronization module 300, a power amplifier module 400, a Bluetooth receiver module 500, a main speaker 600, and a secondary speaker 700. The Bluetooth pass-through module 200 receives audio signals and transmits them to the delay synchronization module 300 and the Bluetooth receiver module 500 respectively. The Bluetooth receiver module 500 is connected to the secondary speaker 700 and transmits audio signals to the secondary speaker 700. The delay synchronization module 300 is connected to both the Bluetooth pass-through module 200 and the power amplifier module 400, and extends the time it takes for the audio signals to be transmitted to the power amplifier module 400. The power amplifier module 400 is connected to the main speaker 600 and amplifies the audio signals before transmitting them to the main speaker 600.

[0028] In this embodiment, after receiving the audio signal, the Bluetooth pass-through module 200 does not process the audio signal but directly sends it to the Bluetooth receiving module 500 and drives the power amplifier module 400. There is a delay in the transmission from the Bluetooth pass-through module 200 to the Bluetooth receiving module 500 and the power amplifier module 400, and this delay is longer than the delay of directly driving the power amplifier module 400. Therefore, a delay synchronization module 300 is set between the Bluetooth pass-through module 200 and the power amplifier module 400 to increase the delay in the transmission of the audio signal to the power amplifier module 400, ensuring that the audio signals arrive at the Bluetooth receiving module 500 and the power amplifier module 400 almost synchronously. This synchronizes the sound of the main speaker 600 and the secondary speaker 700, making the sound heard by the user almost identical.

[0029] It should be noted that the time difference between the audio signal transmission delay from the Bluetooth pass-through module 200 to the Bluetooth receiving module 500 and the delay when the Bluetooth pass-through module 200 directly drives the power amplifier module 400 is within 50ms. This ensures that the user cannot distinguish the sound difference, thus achieving synchronization between the main speaker 600 and the secondary speaker 700. For example, when the delay synchronization module 300 is not set, if the delay time from the Bluetooth pass-through module 200 to the Bluetooth receiving module 500 is 200ms, while the delay time directly to the power amplifier module 400 is 50ms, then the audio signal transmission delay time of the delay synchronization module 300 can be set to 170ms, thereby achieving synchronization between the main speaker 600 and the secondary speaker 700.

[0030] In some embodiments, such as Figure 1 and Figure 2 As shown, the delay synchronization module 300 is a lip-sync circuit, which is connected between the Bluetooth pass-through module 200 and the power amplifier module 400. The lip-sync circuit is used to fix the time delay for the audio signal to be sent to the power amplifier module 400.

[0031] In this embodiment, the delay synchronization module 300 is implemented using a lip-sync circuit. The lip-sync circuit includes a lip-sync chip U2, which is a general-purpose chip with high cost-effectiveness. Its internal hardware circuitry can adjust a fixed delay time to achieve synchronization between the main speaker and the secondary speaker. In one implementation, the lip-sync chip U2 can be a TPA5052 lip-sync chip. It should be noted that there are other similar lip-sync circuit solutions; this embodiment only lists one example. Any general-purpose chip solution that can achieve this function can be applied to this invention.

[0032] In some embodiments, such as Figure 1 and Figure 2 As shown, the power amplifier module includes a power amplifier chip U3, which is connected to the main speaker 600.

[0033] In this embodiment, the power amplifier chip U3 is connected between the delay synchronization module 300 and the main speaker 600, and can amplify the audio signal sent by the delay synchronization module 300 before inputting it to the main speaker 600.

[0034] In some embodiments, such as Figure 1 As shown, the Bluetooth receiving module 500 includes a first Bluetooth receiving module 510 for receiving the audio signal and a second Bluetooth receiving module 520 for receiving the audio signal.

[0035] Furthermore, the secondary speaker 700 includes a first secondary speaker 710 and a second secondary speaker 720; the first secondary speaker 710 is connected to the first Bluetooth receiving module 510; and the second secondary speaker 720 is connected to the second Bluetooth receiving module 520.

[0036] In this embodiment, two secondary speakers 700 can be configured and distributed on both sides of the main speaker. Correspondingly, two Bluetooth receiver modules 500 are also configured and connected to their respective secondary speakers to send audio signals to the corresponding secondary speakers, such as... Figure 1 As shown, the first Bluetooth receiving module 510 sends an audio signal to the first secondary speaker 710, and the second Bluetooth receiving module 520 sends an audio signal to the second secondary speaker 720.

[0037] In some embodiments, such as Figure 1 As shown, this utility model also provides an electronic device, which includes a device body 100 and a Bluetooth speaker device as described above.

[0038] In this embodiment, the Bluetooth speaker device is connected to the device body 100, and the device body 100 can generate audio signals and send them to the Bluetooth speaker device. In one implementation, the electronic device can be a television set.

[0039] In some embodiments, such as Figure 1 and Figure 2 As shown, the device body 100 includes a system-on-a-chip U1, and the Bluetooth pass-through module 200 is disposed on the system-on-a-chip U1.

[0040] In this embodiment, the audio signal is generated by the system-on-a-chip (SOC), and the Bluetooth pass-through module 200 is integrated on the system-on-a-chip U1. The system-on-a-chip U1 is connected to the lip-sync chip U2 and the power amplifier chip U3 respectively, and sends the audio signal to the lip-sync chip U2.

[0041] In some embodiments, the main speaker 600 and the secondary speaker 700 are disposed on the device body 100.

[0042] In this embodiment, the main speaker 600 and the secondary speaker 700 are integrated with the device body 100, forming an all-in-one structure. For example, when the electronic device is a television, the television is an all-in-one television with the main speaker 600 and the secondary speaker 700.

[0043] In summary, the Bluetooth speaker device and electronic device provided by this utility model have the following beneficial effects: The audio signal sent to the power amplifier module is delayed by a delay synchronization module, so that the audio signal is transmitted to the Bluetooth receiving module and the power amplifier module at a time that is basically synchronized, thus enabling the sound of the main speaker and the secondary speaker to be synchronized.

[0044] It should be understood that the application of this utility model is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A Bluetooth speaker device, characterized in that, include: Bluetooth pass-through module, delay synchronization module, power amplifier module, Bluetooth receiver module, main speaker and secondary speaker; among which, The Bluetooth pass-through module is used to receive audio signals and send the audio signals to the delay synchronization module and the Bluetooth receiving module respectively. The Bluetooth receiving module is connected to the secondary speaker, and the Bluetooth receiving module is used to send audio signals to the secondary speaker; The delay synchronization module is connected to both the Bluetooth pass-through module and the power amplifier module. The delay synchronization module is used to extend the time it takes for the audio signal to be sent to the power amplifier module. The power amplifier module is connected to the main speaker, and the power amplifier module is used to amplify the audio signal and send it to the main speaker.

2. The Bluetooth speaker device according to claim 1, characterized in that, The delay synchronization module is a lip-sync circuit, which is connected between the Bluetooth pass-through module and the power amplifier module. The lip-sync circuit is used to fix the time delay for the audio signal to be sent to the power amplifier module.

3. The Bluetooth speaker device according to claim 2, characterized in that, The lip-sync circuit includes a lip-sync chip; the model of the lip-sync chip is TPA5052.

4. The Bluetooth speaker device according to claim 1, characterized in that, The power amplifier module includes a power amplifier chip, which is connected to the main speaker.

5. The Bluetooth speaker device according to claim 1, characterized in that, The Bluetooth receiving module includes a first Bluetooth receiving module for receiving the audio signal and a second Bluetooth receiving module for receiving the audio signal.

6. The Bluetooth speaker device according to claim 5, characterized in that, The secondary speaker includes a first secondary speaker and a second secondary speaker; the first secondary speaker is connected to the first Bluetooth receiving module; and the second secondary speaker is connected to the second Bluetooth receiving module.

7. An electronic device, characterized in that, Includes the device body and the Bluetooth speaker device as described in any one of claims 1-6.

8. The electronic device according to claim 7, characterized in that, The device body includes a system-on-a-chip, and the Bluetooth pass-through module is mounted on the system-on-a-chip.

9. The electronic device according to claim 7, characterized in that, The main speaker and the secondary speaker are mounted on the main body of the device.

10. The electronic device according to claim 7, characterized in that, The electronic device is a television set.

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