CN210958732U - Bluetooth earphone - Google Patents
Bluetooth earphone Download PDFInfo
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- CN210958732U CN210958732U CN201922495293.6U CN201922495293U CN210958732U CN 210958732 U CN210958732 U CN 210958732U CN 201922495293 U CN201922495293 U CN 201922495293U CN 210958732 U CN210958732 U CN 210958732U
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- bluetooth
- radio frequency
- frequency transmitting
- transmitting circuit
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Abstract
The utility model discloses a bluetooth headset relates to electro-acoustic products field, including bluetooth chip, first radio frequency transmitting circuit, audio input output circuit and second radio frequency transmitting circuit, the bluetooth chip forms the bluetooth route with first radio frequency transmitting circuit and second radio frequency transmitting circuit respectively, two bluetooth address codes of bluetooth chip built-in. When the Bluetooth headset and the Bluetooth equipment share one mobile terminal, the Bluetooth headset performs Bluetooth communication with the mobile terminal by using one Bluetooth address code through the Bluetooth chip and the first radio frequency transmitting circuit to transmit signals such as audio, and simultaneously performs Bluetooth communication with the Bluetooth equipment by using the other Bluetooth address code through the Bluetooth chip and the second radio frequency transmitting circuit to enable the signals such as the audio transmitted by the mobile terminal to be transmitted to the Bluetooth equipment by the second radio frequency transmitting unit to realize signal sharing. It is thus clear that the utility model discloses can carry out bluetooth communication with mobile terminal and bluetooth equipment simultaneously, realize the signal sharing.
Description
Technical Field
The utility model relates to an electroacoustic product technical field especially relates to a bluetooth headset.
Background
The existing bluetooth headset is usually only provided with one bluetooth access, that is, the bluetooth headset can only communicate with the paired bluetooth devices such as mobile phones, so that signals such as audio transmitted by the bluetooth devices such as mobile phones cannot be shared, resources cannot be shared, and the use requirements cannot be met.
Such as: at the same time, after the mobile phone is successfully paired with the bluetooth headset a, the mobile phone can only transmit signals such as audio and the like to the bluetooth headset a, and the bluetooth headset B cannot perform bluetooth communication with the mobile phone any more and cannot share signals such as audio and the like with the bluetooth headset a.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned not enough, the utility model discloses the technical problem that will solve is: a Bluetooth headset is provided, which can simultaneously perform Bluetooth communication with a mobile terminal and a Bluetooth device to realize signal sharing.
In order to solve the technical problem, the technical scheme of the utility model is that:
the utility model provides a bluetooth headset, including the bluetooth chip and respectively with first radio frequency transmitting circuit and the audio input output circuit that the bluetooth chip electricity is connected, still include with the second radio frequency transmitting circuit that the bluetooth chip electricity is connected, the bluetooth chip respectively with first radio frequency transmitting circuit with second radio frequency transmitting circuit forms the bluetooth route, two bluetooth address codes of bluetooth chip built-in.
Preferably, the bluetooth radio frequency transmitter further comprises a switching circuit electrically connected with the bluetooth chip, and the switching circuit is used for starting and closing the second radio frequency transmitting circuit.
Preferably, the switching circuit comprises a switching key electrically connected with the bluetooth chip.
Preferably, the bluetooth radio frequency transmitter further comprises a key circuit electrically connected with the bluetooth chip, wherein the key circuit comprises at least one function key, and one function key is used for starting and closing the second radio frequency transmitter.
Preferably, the Bluetooth mobile phone further comprises an indicator light electrically connected with the Bluetooth chip.
Preferably, the bluetooth device further comprises a USB interface electrically connected with the bluetooth chip.
Preferably, the bluetooth device further comprises a microphone electrically connected with the bluetooth chip.
Preferably, the audio input/output circuit includes a left speaker and a right speaker.
Preferably, the bluetooth device further comprises a battery electrically connected with the bluetooth chip.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
because the utility model discloses a bluetooth headset, including the bluetooth chip and respectively with the first radio frequency transmitting circuit and the audio input output circuit that the bluetooth chip electricity is connected, still include the second radio frequency transmitting circuit who is connected with the bluetooth chip electricity, the bluetooth chip forms the bluetooth route, two bluetooth address codes of bluetooth chip built-in with first radio frequency transmitting circuit and second radio frequency transmitting circuit respectively. When the Bluetooth devices such as the Bluetooth headset and the other Bluetooth headset share one mobile terminal, the Bluetooth headset performs Bluetooth communication with the mobile terminal by using one Bluetooth address code through the Bluetooth chip and the first radio frequency transmitting circuit and transmits signals such as audio, and simultaneously performs Bluetooth communication with the Bluetooth devices by using the other Bluetooth address code through the Bluetooth chip and the second radio frequency transmitting circuit, so that the signals such as the audio transmitted by the mobile terminal are transmitted to the Bluetooth devices by the second radio frequency transmitting unit, and signal sharing is realized. It can be seen that the utility model discloses a bluetooth headset can carry out bluetooth communication with mobile terminal and bluetooth equipment simultaneously, realizes the signal sharing.
The Bluetooth module also comprises a switching circuit electrically connected with the Bluetooth chip, wherein the switching circuit is used for starting and closing the second radio frequency transmitting circuit, so that the unused second radio frequency transmitting circuit is closed, and the power consumption is reduced.
Because the switching circuit comprises the switching key electrically connected with the Bluetooth chip, the switching between the starting state and the closing state of the second radio frequency transmitting circuit is realized by utilizing the independently arranged switching key, and the operation is convenient.
The Bluetooth module further comprises a key circuit electrically connected with the Bluetooth chip, wherein the key circuit comprises at least one function key, and one function key is used for starting and closing the second radio frequency transmitting circuit; the original keys of the Bluetooth headset are multiplexed, and the unused second radio frequency transmitting circuit is closed, so that the power consumption is reduced.
Drawings
Fig. 1 is a schematic block diagram of the bluetooth headset of the present invention;
fig. 2 is a circuit diagram of the bluetooth headset of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and fig. 2, a bluetooth headset includes a bluetooth chip U1, an antenna ANT electrically connected to the bluetooth chip U1, and a first rf transmitting circuit U2 and an audio input/output circuit electrically connected to the bluetooth chip U1, respectively, and also includes a second rf transmitting circuit U3 electrically connected to the bluetooth chip U1. The Bluetooth chip U1 forms a Bluetooth channel with the first radio frequency transmitting circuit U2 and the second radio frequency transmitting circuit U3, and two Bluetooth address codes are arranged in the Bluetooth chip U1. The first radio frequency transmitting circuit U2 and the second radio frequency transmitting circuit U3 both preferably use a radio frequency chip RF 26968.
In order to understand more clearly, the utility model discloses a bluetooth headset defines for bluetooth headset A, and during bluetooth headset A normal use, utilizes bluetooth chip U1 and first radio frequency transmitting circuit U2 to one of them bluetooth address code carries out bluetooth communication with mobile terminal (cell-phone). When resource sharing is required, i.e. bluetooth headset a and other bluetooth devices share one handset, the bluetooth device may be, but is not limited to, bluetooth headset B. At this time, the bluetooth headset a utilizes the bluetooth chip U1 and the second rf transmitting circuit U3 to perform bluetooth communication with the bluetooth headset B by using another bluetooth address code. When the cell-phone passes through audio input output circuit, when audio signal transmission to bluetooth headset A, bluetooth headset A utilizes second radio frequency transmitting unit U3 to go out audio signal transmission to the bluetooth communication mode broadcasting is gone out, makes bluetooth headset B receive audio signal, thereby makes bluetooth headset A and bluetooth headset B realize the function of talkbacking, and the resource that bluetooth headset A and bluetooth headset B share the cell-phone and share lets the utility model discloses it is more practical, satisfy multiple use needs.
If two people all use simultaneously the utility model discloses a bluetooth headset when two users all switch the earphone to the broadcast, can not rely on audio equipment, can accomplish the communication between two bluetooth headset, and then can realize talkbacking the function.
As shown in fig. 2, the utility model discloses still include the switching circuit who is connected with the bluetooth chip electricity, switching circuit is used for starting and closes second radio frequency transmitting circuit U3. The switching circuit enables the second radio frequency transmitting circuit U3 to be in a closed state when not in use, and reduces energy consumption.
The switching circuit comprises a switching key SW electrically connected with the Bluetooth chip U1, and the switching key SW is specially used for starting and closing the second radio frequency transmitting circuit U3, so that the operation is simple and convenient. One end of the switching key SW is connected with a port PIO [4] of the Bluetooth chip U1, and the other end is grounded GND.
The utility model discloses still include the keying circuit who is connected with bluetooth chip electricity U1, keying circuit includes at least one function button, and one of them function button is used for starting and closes second radio frequency transmitting circuit U3. The structure enables the function keys to be multiplexed, and hardware is saved. The function keys can be reused by pressing frequency and pressing time. The Bluetooth chip comprises a key S1, a key S2, a key S3 and a key S4, wherein the key S1 is connected with a port PIO [0] of a Bluetooth chip U1, and the other end of the key S1 is grounded GND; the key S2 is connected with the port PIO [1] of the Bluetooth chip U1, and the other end is grounded GND; the key S3 is connected with the port PIO 2 of the Bluetooth chip U1, and the other end is grounded GND; the button S4 is connected with the port PIO 3 of the Bluetooth chip U1, and the other end is grounded GND. The second radio frequency transmitting circuit U3 can be started and closed by a selectable key S1, so that key multiplexing is realized.
As shown in fig. 2, the bluetooth headset of this embodiment further includes an indicator light electrically connected to the bluetooth chip U1, a USB interface J, a microphone MIC, a left speaker L and a right speaker R, and a battery BT, where the battery BT supplies power to the whole bluetooth headset.
The Bluetooth headset can display different states of the Bluetooth headset by using indicator lights with different colors, such as a red LED1 or a green LED2, and the states can be set according to actual needs; one end of the red LED1 is connected with the port LED [1] of the Bluetooth chip U1, the other end is connected with the power supply VBT through a resistor, one end of the green LED2 is connected with the port LED [2] of the Bluetooth chip U1, the other end is connected with the power supply VBT through a resistor, and the power supply VBT is provided with working voltage by a battery.
This bluetooth headset utilizes USB interface J to charge, and USB interface J's VBUS pin inserts charging voltage VCH during charging, grounding tube GND foot ground GND, pin DN and pin DP are connected with bluetooth chip U1's port USB _ N and port USB _ P respectively, make charging voltage connect to the charging circuit of battery BAT after through bluetooth chip U1 internal processing, charge for battery BAT.
This bluetooth headset's microphone MIC is used for picking up audio signal, realizes the conversation function. The grounding end of the microphone MIC is grounded GND, the output end OUT is connected with a port MIC _ RP of the Bluetooth chip U1, and the pin BIAS is respectively connected with a port MIC _ RN and a port MIC _ BIAS which are connected with the Bluetooth chip U1.
This bluetooth headset's audio input output circuit includes left loudspeaker L and right loudspeaker R, and left loudspeaker L is connected with bluetooth chip U1's port SPKR _ LP and port SPKR _ LN respectively, and right loudspeaker R is connected with bluetooth chip U1's port SPKR _ RP and port SPKR _ RN respectively. The audio input and output circuit can realize the input and output of audio signals, such as: the audio signal transmitted by the mobile phone is connected to the Bluetooth headset through the audio input and output circuit, and the Bluetooth headset transmits the signal through the second radio frequency transmitting circuit U3.
To sum up, the utility model discloses a bluetooth headset has added the mode that can the user broadcast on original communication mode. When the user uses the earphone normally, the communication of the normal earphone can be completed by switching the switching key SW to the normal mode. When the user wants to broadcast (if the user wants to share out the signal from the mobile phone device), the sharing of the bluetooth signal is realized by switching the key SW, and other users can connect through the bluetooth headset and acquire the signal.
The above-mentioned preferred embodiments of the present invention are not intended to limit the present invention, and any modifications, equivalent modifications, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (9)
1. The utility model provides a bluetooth headset, including the bluetooth chip and respectively with first radio frequency transmitting circuit and the audio input output circuit that the bluetooth chip electricity is connected, its characterized in that still include with the second radio frequency transmitting circuit that the bluetooth chip electricity is connected, the bluetooth chip respectively with first radio frequency transmitting circuit with second radio frequency transmitting circuit forms the bluetooth route, two bluetooth address codes of bluetooth chip built-in.
2. The bluetooth headset of claim 1, further comprising a switching circuit electrically connected to the bluetooth chip, the switching circuit configured to turn on and off the second rf transmitting circuit.
3. The bluetooth headset of claim 2, wherein the switching circuit comprises a switching button electrically connected to the bluetooth chip.
4. The bluetooth headset of claim 1, further comprising a key circuit electrically connected to the bluetooth chip, the key circuit comprising at least one function key, wherein one of the function keys is configured to activate and deactivate the second rf transmitting circuit.
5. The Bluetooth headset of any one of claims 1 to 4, further comprising an indicator light electrically connected to the Bluetooth chip.
6. The bluetooth headset of claim 5, further comprising a USB interface electrically connected to the bluetooth chip.
7. The bluetooth headset of claim 5, further comprising a microphone electrically connected to the bluetooth chip.
8. The bluetooth headset of claim 1, wherein the audio input-output circuit comprises a left speaker and a right speaker.
9. The bluetooth headset of claim 5, further comprising a battery electrically connected to the bluetooth chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922495293.6U CN210958732U (en) | 2019-12-31 | 2019-12-31 | Bluetooth earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922495293.6U CN210958732U (en) | 2019-12-31 | 2019-12-31 | Bluetooth earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210958732U true CN210958732U (en) | 2020-07-07 |
Family
ID=71382652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922495293.6U Active CN210958732U (en) | 2019-12-31 | 2019-12-31 | Bluetooth earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210958732U (en) |
-
2019
- 2019-12-31 CN CN201922495293.6U patent/CN210958732U/en active Active
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