CN215121165U - Communication circuit of left and right earshells of wireless headset and wireless headset - Google Patents
Communication circuit of left and right earshells of wireless headset and wireless headset Download PDFInfo
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- CN215121165U CN215121165U CN202121681072.9U CN202121681072U CN215121165U CN 215121165 U CN215121165 U CN 215121165U CN 202121681072 U CN202121681072 U CN 202121681072U CN 215121165 U CN215121165 U CN 215121165U
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Abstract
The utility model discloses a communication circuit and wireless headset of earlap about wireless headset, the communication circuit of earlap includes first earlap working circuit and second earlap working circuit about wireless headset, first earlap working circuit includes first control circuit, first power supply circuit and first modulation and demodulation circuit, first modulation and demodulation circuit's signal end is connected with first control circuit's control signal exchange end, first modulation and demodulation circuit's power end is connected with first power supply circuit's input-output end. The second earmuff working circuit comprises a second control circuit, a second power supply circuit and a second modulation and demodulation circuit, wherein the power supply input/output end of the second power supply circuit is connected with the power supply input/output end of the first power supply circuit, the signal end of the second modulation and demodulation circuit is connected with the control signal exchange end of the second control circuit, and the power supply end of the second modulation and demodulation circuit is connected with the input/output end of the second power supply circuit. The technical problem of too much wiring harness between the two earshells of the wireless earphone is solved by the scheme.
Description
Technical Field
The utility model relates to a and wireless earphone's technical field, in particular to communication circuit and wireless earphone of earlap about wireless headphone.
Background
In the prior art, earphones are generally divided into a left earphone and a right earphone, but a power supply, a speaker signal, a sound signal and the like need to be transmitted between the left earphone and the right earphone, and the signals need to be transmitted through a separate power line, a speaker line and a Mic (microphone) acquisition line. If other functions need to be added on the basis, corresponding modules need to be correspondingly added in the left ear earphone and the right ear earphone, and a control connecting line is arranged between the two modules, so that the number of the connecting lines is greatly increased along with the increase of the functions, and the wiring harness between the left earphone and the right earphone is excessive.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a communication circuit of earlap about wireless headphone aims at solving the too much technical problem of pencil between the two earlap of current wireless headphone.
In order to achieve the above object, the utility model provides a communication circuit of earlap about wireless headphone, the communication circuit of earlap includes about wireless headphone:
a first earcup operating circuit and a second earcup operating circuit;
the first earmuff working circuit comprises a first control circuit, a first power supply circuit and a first modulation and demodulation circuit, wherein the first modulation and demodulation circuit is provided with a power supply end, a signal end and an input/output end, the signal end of the first modulation and demodulation circuit is connected with a control signal exchange end of the first control circuit, and the power supply end of the first modulation and demodulation circuit is connected with the input/output end of the first power supply circuit;
the second earmuff working circuit comprises a second control circuit, a second power circuit and a second modulation and demodulation circuit, wherein the second modulation and demodulation circuit is provided with a power supply end, a signal end and an input-output end, the power supply input-output end of the second power circuit is connected with the power supply input-output end of the first power circuit, the signal end of the second modulation and demodulation circuit is connected with a control signal exchange end of the second control circuit, and the power supply end of the second modulation and demodulation circuit is connected with the input-output end of the second power circuit;
the first modulation and demodulation circuit is configured to load the first control signal output by the first control circuit onto the power signal output by the second power circuit to form a first modulation signal and output the first modulation signal to the second modulation and demodulation circuit, and/or is configured to demodulate the second modulation signal output by the second modulation and demodulation circuit into the power signal and the second modulation signal;
the second modulation and demodulation circuit is configured to load a second control signal output by the second control circuit onto a power signal output by the second power circuit to form a second modulation signal, and output the second modulation signal to the first modulation and demodulation circuit, and/or demodulate a first modulation signal output by the first modulation and demodulation circuit into the power signal and the second modulation signal.
Optionally, the first modulation and demodulation circuit or the second modulation and demodulation circuit includes a modulation module and a demodulation module, a first end of the modulation module is a power supply end of the first modulation and demodulation circuit or a power supply end of the second modulation and demodulation circuit, a second end of the modulation module is connected to a second end of the demodulation module, and a connection node thereof is an input/output end of the first modulation and demodulation circuit or an input/output end of the second modulation and demodulation circuit; the second end of the demodulation module is the power supply end of the first modulation and demodulation circuit or the power supply end of the second modulation and demodulation circuit.
Optionally, the first earmuff operating circuit further comprises a first playback circuit and a radio receiving circuit, the first control circuit further comprises a voice signal processing input end and a voice signal output end, the voice signal processing input end of the first control circuit is connected with the output end of the radio receiving circuit, and the voice signal output end of the first control circuit is connected with the input end of the first playback circuit.
Optionally, the first control circuit is a control chip with an active noise reduction function.
Optionally, the second earmuff operating circuit further comprises a second playback circuit, a noise reduction reception circuit and a noise reduction circuit, and the second playback circuit and the noise reduction reception circuit are both connected with the second control circuit through the noise reduction circuit.
Optionally, the second earmuff operating circuit further comprises a voice communication radio circuit, the second control circuit further comprises a voice communication end, and the voice communication end of the control circuit is connected with the output end of the voice communication radio circuit.
Optionally, the second earmuff operating circuit further comprises a charging circuit, the second power circuit further comprises a charging input terminal, and an output terminal of the charging circuit is connected to the charging input terminal of the second power circuit.
Optionally, the second earmuff operating circuit further includes a key circuit, the second control circuit further includes a key signal terminal, and the key signal terminal of the second control circuit is connected to the output terminal of the key circuit.
Optionally, one of the first modulation and demodulation circuit and the second modulation and demodulation circuit is a modulation and demodulation circuit, and the other is a demodulation circuit.
In order to achieve the above object, the utility model also provides a wireless earphone, wireless earphone includes left ear earphone, right ear earphone and as above wireless headset about the communication circuit of earlap, the part of the communication circuit of earlap is located about wireless headset left ear earphone, another part is located in the right ear earphone, wireless headset about the communication circuit of earlap first earlap working circuit with the communication circuit's of earlap second earlap working circuit is through a connecting wire exchange control signal and power signal about the wireless headset.
The technical scheme of the utility model wireless headset about communication circuit of earlap includes first earlap working circuit and second earlap working circuit, wherein, first modulation and demodulation circuit will the first control signal loading of first control circuit output is arrived output behind the last back formation first modulation signal of the power signal of second power supply circuit output. The first modulation and demodulation circuit demodulates a second modulation signal output from the second modulation and demodulation circuit into the power supply signal and a second control signal, and outputs the power supply signal to the first power supply circuit for charging and the second control signal to the first control circuit. The first control signal is loaded on the power signal through the first modulation and demodulation circuit to form a first modulation signal or the second control signal is loaded on the power signal through the second modulation and demodulation circuit to form a second modulation signal, at the moment, the first modulation signal and the second modulation signal are output through one signal wire, and then the first modulation signal is demodulated through the second modulation and demodulation circuit of the second ear shell working circuit to form a separated power signal and a first control signal.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic block diagram of a communication circuit of left and right ear shells of the wireless headset according to the present invention;
fig. 2 is a schematic block diagram of a communication circuit of the left and right ear shells of the wireless headset according to the present invention;
fig. 3 is a schematic block diagram of the communication circuit of the left and right ear shells of the wireless headset of the present invention.
The purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.
Detailed Description
In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention, and if there is a description related to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is only used for descriptive purposes and is not to be interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
The utility model provides a communication circuit of earlap about wireless headphone aims at solving the too much technical problem of pencil between wireless headphone's the two earlap.
In one embodiment, as shown in fig. 1 and 3, the communication circuitry of the left and right earshells of the wireless headset includes a first earshell operating circuit 10 and a second earshell operating circuit 20. The first earmuff operating circuit 10 includes a first control circuit 103, a first power circuit 101 and a first modulation and demodulation circuit 102, the first modulation and demodulation circuit 102 has a power terminal, a signal terminal and an input/output terminal, the signal terminal of the first modulation and demodulation circuit 102 is connected to a control signal exchange terminal of the first control circuit 103, and the power terminal of the first modulation and demodulation circuit 102 is connected to the input/output terminal of the first power circuit 101. The second earmuff operating circuit 20 includes a second control circuit 203, a second power circuit 202 and a second modulation and demodulation circuit 201, the second modulation and demodulation circuit 201 has a power terminal, a signal terminal and an input/output terminal, the power input/output terminal of the second power circuit 202 is connected to the power input/output terminal of the first power circuit 101, the signal terminal of the second modulation and demodulation circuit 201 is connected to the control signal exchange terminal of the second control circuit 203, and the power terminal of the second modulation and demodulation circuit 201 is connected to the input/output terminal of the second power circuit 202.
The first modulation and demodulation circuit 102 loads the first control signal output by the first control circuit 103 to the power signal output by the second power circuit 202 to form a first modulation signal, and outputs the first modulation signal, and the second modulation and demodulation circuit 201 loads the second control signal output by the second control circuit 203 to the power signal output by the second power circuit 202 to form a second modulation signal, and outputs the second modulation signal to the first modulation and demodulation circuit 102. Alternatively, the first modulation and demodulation circuit 102 may also demodulate the second modulation signal into a power supply signal and a second control signal, and the power supply signal is output to the first power supply circuit 101 for charging. Alternatively, the second modulation and demodulation circuit 201 demodulates the first modulation signal into the power supply signal and the first control signal, and outputs the first control signal to the second control circuit 203. The first modulation and demodulation circuit 102 and the second modulation and demodulation circuit 201 are used for loading the first control signal and the second control signal on the power signal respectively to form a first modulation signal or a second modulation signal, at the moment, the first modulation signal and/or the second modulation signal are/is output through one signal wire, and then the second modulation and demodulation circuit 201 or the first modulation and demodulation circuit 102 demodulates the first modulation and demodulation signal into a separated power signal and a separated control signal. It should be noted that the control signal at this time may be various communication signals, such as a touch signal including a human-computer interaction function, and the like, so that various communication signals and power signals are actually transmitted through one signal line (the connection line 30), and the communication and power supply functions of the control signal are realized through one signal line. Can greatly reduce the production difficulty.
Alternatively, one of the first modulation and demodulation circuit 102 and the second modulation and demodulation circuit 201 is a modulation circuit, and the other is a demodulation circuit. It is also possible that both are modulation and demodulation circuits. The superposition of the control signal and the power supply signal is quickly realized through the modulation and demodulation circuit and the demodulation circuit.
Alternatively, as shown in fig. 3, the first modulation and demodulation circuit 102 or the second modulation and demodulation circuit 201 includes a modulation module and a demodulation module, a first end of the modulation module is a power supply end of the first modulation and demodulation circuit 102 or a power supply end of the second modulation and demodulation circuit 201, a second end of the modulation module is connected to a second end of the demodulation module, and a connection node thereof is an input/output end of the first modulation and demodulation circuit 102 or an input/output end of the second modulation and demodulation circuit 201; the second terminal of the demodulation module is the power supply terminal of the first modulation and demodulation circuit 102 or the power supply terminal of the second modulation and demodulation circuit 201.
In the first modulation and demodulation circuit 102, the first control signal is output to the second modulation and demodulation circuit 201 through the demodulation module of the first modulation and demodulation circuit 102, the second power supply circuit 202 outputs the dc power supply signal to the first modulation and demodulation circuit 102 through the modulation module of the second modulation and demodulation circuit 201, and the second control signal of the second control circuit 203 is output to the first modulation and demodulation circuit 102 through the demodulation module, at this time, the power supply signal and the second control signal realize the superposition of ac and dc into the second modulation signal at the input and output end of the second control circuit 203. A first control signal of the first control circuit 103 is output to the second modulation and demodulation circuit 102 through the demodulation module of the first modulation and demodulation circuit 102, and the first control signal and the power signal are superimposed into a first modulation signal by alternating current and direct current at the input and output ends of the first modulation and demodulation circuit 102. Then, the first modulation signal is transmitted to the second modulation and demodulation circuit 201 through a signal line, and the second modulation signal is transmitted to the first modulation and demodulation circuit 102 through the same signal line, at this time, since the voltage at the two ends of the demodulation module of each modulation and demodulation circuit cannot be suddenly changed, the direct current is isolated to pass through the alternating current signal; the current at the two ends of the modulation module can not change suddenly, namely, alternating current is isolated from direct current; the power supply is a direct current signal, and an alternating current signal is isolated after passing through the modulation module, so that a power supply signal is output; meanwhile, direct current is isolated by the signal of the demodulation module, and a control signal of alternating current is obtained, so that the demodulation circuit of the first modulation and demodulation circuit 102 can separate a power signal and a second control signal from the second modulation signal, and the second modulation and demodulation circuit 201 can also demodulate to obtain the first control signal. Through the process, the superposition and the separation of the signals are quickly and simply realized. Alternatively, the modulation module may be composed of at least one inductor. The demodulation module may be comprised of at least one capacitor.
Optionally, as shown in fig. 2, the first earmuff operating circuit 10 further includes a first playback circuit 104 and a radio receiving circuit 105, the first control circuit 103 further includes a voice signal processing input terminal and a voice signal output terminal, the voice signal processing input terminal of the first control circuit 103 is connected to the output terminal of the radio receiving circuit 105, and the voice signal output terminal of the first control circuit 103 is connected to the input terminal of the first playback circuit 104.
The first playback circuit 104 is used for playing audio, and is generally implemented by using a speaker. The radio receiving circuit 105 is used for collecting audio, and is generally implemented by a microphone.
Optionally, the first control circuit 103 is a control chip with an active noise reduction function. At the moment, the active noise reduction filter is integrated in the control chip, so that the tone quality of the earphone is effectively improved, the active noise reduction filter is integrated, and the control chip is more convenient to install.
Optionally, as shown in fig. 2, the second earmuff operating circuit 20 further includes a second playback circuit 206, a noise reduction radio circuit 205, and a noise reduction circuit 204, and both the second playback circuit 206 and the noise reduction radio circuit 205 are connected to the second control circuit 203 through the noise reduction circuit 204.
The second playback circuit 206 is configured to play audio, the noise reduction reception circuit 205 is configured to collect audio, and the noise reduction circuit 204 is configured to reduce noise of the filtered and played audio and the collected audio. It should be noted that the noise reduction sound receiving circuit 205 may be implemented by a microphone with a noise reduction function, and the noise reduction circuit 204 may be implemented by an active noise reduction filter.
Optionally, as shown in fig. 2, an audio transmission line 40 is further disposed between the first control circuit 103 and the second control circuit 203 to separately transmit audio signals between the left-ear earphone and the right-ear earphone, so as to avoid interference of other signals.
Optionally, as shown in fig. 2, the second earmuff operating circuit 20 further comprises a voice communication radio circuit 208, and the second control circuit 203 further comprises a voice communication terminal, wherein the voice communication terminal of the control circuit is connected to an output terminal of the voice communication radio circuit 208.
The voice communication radio circuit 208 is used to collect the voice of the user during the call to avoid mixing with other audio signals. Alternatively, the voice communication radio circuit 208 may be implemented with a dedicated call microphone.
Optionally, as shown in fig. 2 and fig. 3, the second earshell operating circuit 20 further includes a charging circuit 200, and the second power circuit 202 further includes a charging input terminal, and an output terminal of the charging circuit 200 is connected to the charging input terminal of the second power circuit 202.
The charging circuit 200 is used to charge the second power circuit 202 to ensure the normal operation of the earphone. It should be noted that the charging circuit 200 may be a conventional charging circuit 200, such as the charging circuit 200 with overcurrent protection.
Optionally, as shown in fig. 2, the second earmuff operating circuit 20 further includes a key circuit 207, the second control circuit 203 further includes a key signal terminal, and the key signal terminal of the second control circuit 203 is connected to the output terminal of the key circuit 207.
The key circuit 207 is used for inputting a request signal of a user to trigger the output of a corresponding control signal in the second control circuit 203. Alternatively, the key circuit 207 may be a touch screen, a touch key, a mechanical key, or other various key circuits 207. Thus, the function of the earphone can be greatly expanded without increasing the production complexity.
Optionally, the second earcup operating circuit 20 further comprises an antenna 209, the second control circuit 203 further comprises an antenna 209 signal terminal, and the antenna 209 terminal of the second control circuit 203 is connected to the antenna 209.
Through the antenna 209, the earphone can receive external audio signals and control signals, thereby realizing wireless signal transmission. The use of the user is convenient.
The utility model also provides a wireless earphone, wireless earphone includes left ear earphone, the communication circuit of earlap about the right ear earphone and as above wireless headphone, left ear earphone is located to the communication circuit's of earlap part about the wireless headphone, during the right ear earphone is located to another part, wireless headphone controls the communication circuit's of earlap first earlap working circuit 10 and wireless headphone control the communication circuit's of earlap second earlap working circuit 20 through a connecting wire 30 switching control signal and power signal.
Wherein, be worth noting because the utility model discloses wireless earphone has contained the whole embodiments of the communication circuit of earlap about above-mentioned wireless headphone, consequently the utility model discloses wireless earphone has all beneficial effects of the communication circuit of earlap about above-mentioned wireless headphone, and here is no longer repeated. It should be noted that the wireless headset may be a wireless headset supporting a wireless transmission protocol or a wireless headset of a proprietary protocol. Or may be a wireless headset supporting wired mode.
Above only be the utility model discloses an optional embodiment to not consequently restrict the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of description and drawing did, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (11)
1. A communication circuit of left and right earshells of a wireless headset, comprising:
a first earcup operating circuit and a second earcup operating circuit;
the first earmuff working circuit comprises a first control circuit, a first power supply circuit and a first modulation and demodulation circuit, wherein the first modulation and demodulation circuit is provided with a power supply end, a signal end and an input/output end, the signal end of the first modulation and demodulation circuit is connected with a control signal exchange end of the first control circuit, and the power supply end of the first modulation and demodulation circuit is connected with the input/output end of the first power supply circuit;
the second earmuff working circuit comprises a second control circuit, a second power circuit and a second modulation and demodulation circuit, wherein the second modulation and demodulation circuit is provided with a power supply end, a signal end and an input-output end, the power supply input-output end of the second power circuit is connected with the power supply input-output end of the first power circuit, the signal end of the second modulation and demodulation circuit is connected with a control signal exchange end of the second control circuit, and the power supply end of the second modulation and demodulation circuit is connected with the input-output end of the second power circuit;
the first modulation and demodulation circuit is configured to load the first control signal output by the first control circuit onto the power signal output by the second power circuit to form a first modulation signal and output the first modulation signal to the second modulation and demodulation circuit, and/or is configured to demodulate the second modulation signal output by the second modulation and demodulation circuit into the power signal and the second modulation signal;
the second modulation and demodulation circuit is configured to load a second control signal output by the second control circuit onto a power signal output by the second power circuit to form a second modulation signal, and output the second modulation signal to the first modulation and demodulation circuit, and/or demodulate a first modulation signal output by the first modulation and demodulation circuit into the power signal and the second modulation signal.
2. The communication circuit of the left and right ear shells of the wireless headset according to claim 1, wherein the first modulation and demodulation circuit or the second modulation and demodulation circuit comprises a modulation module and a demodulation module, a first end of the modulation module is a power supply terminal of the first modulation and demodulation circuit or a power supply terminal of the second modulation and demodulation circuit, a second end of the modulation module is connected with a second end of the demodulation module, and a connection node thereof is an input/output terminal of the first modulation and demodulation circuit or an input/output terminal of the second modulation and demodulation circuit; the second end of the demodulation module is the power supply end of the first modulation and demodulation circuit or the power supply end of the second modulation and demodulation circuit.
3. The communication circuit of the left and right ear shells of the wireless headset as claimed in claim 1, wherein the first ear shell operating circuit further comprises a first playback circuit and a radio circuit, the first control circuit further comprises a voice signal processing input terminal and a voice signal output terminal, the voice signal processing input terminal of the first control circuit is connected to the output terminal of the radio circuit, and the voice signal output terminal of the first control circuit is connected to the input terminal of the first playback circuit.
4. The communication circuit of the left and right earshells of the wireless headset of claim 3, wherein the first control circuit is a control chip with active noise reduction function.
5. The communication circuit of the left and right ear shells of the wireless headset according to claim 1, wherein the second ear shell operating circuit further comprises a second playback circuit, a noise reduction reception circuit and a noise reduction circuit, and the second playback circuit and the noise reduction reception circuit are both connected with the second control circuit through the noise reduction circuit.
6. The communication circuit of the left and right ear shells of the wireless headset of claim 1, wherein the second ear shell operating circuit further comprises a voice communication radio circuit, the second control circuit further comprises a voice communication terminal, and the voice communication terminal of the control circuit is connected to an output terminal of the voice communication radio circuit.
7. The communication circuit of the left and right earshells of the wireless headset of claim 1, wherein the second earshell operating circuit further comprises a charging circuit, the second power circuit further comprises a charging input, and an output of the charging circuit is connected to the charging input of the second power circuit.
8. The communication circuit of the left and right ear shells of the wireless headset of claim 1, wherein the second ear shell operating circuit further comprises a key circuit, the second control circuit further comprises a key signal terminal, and the key signal terminal of the second control circuit is connected to an output terminal of the key circuit.
9. The wireless headset left and right earmuff communication circuit according to any one of claims 1-8, wherein either one of the first modulation and demodulation circuit and the second modulation and demodulation circuit is a modulation and demodulation circuit, and the other one is a demodulation circuit.
10. The communications circuitry for left and right earshells of a wireless headset according to any of claims 1-8, wherein the second earshell operating circuitry further comprises an antenna, the second control circuitry further comprises an antenna signal terminal, and the antenna terminal of the second control circuitry is coupled to the antenna.
11. A wireless headset comprising a left ear speaker, a right ear speaker, and the communication circuits of the left and right ear shells of the wireless headset according to any one of claims 1 to 10, wherein a part of the communication circuits of the left and right ear shells of the wireless headset is provided in the left ear speaker, and the other part of the communication circuits of the left and right ear shells of the wireless headset is provided in the right ear speaker, and wherein a first ear shell operating circuit of the communication circuits of the left and right ear shells of the wireless headset and a second ear shell operating circuit of the communication circuits of the left and right ear shells of the wireless headset exchange a control signal and a power supply signal via a connection line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121681072.9U CN215121165U (en) | 2021-07-22 | 2021-07-22 | Communication circuit of left and right earshells of wireless headset and wireless headset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121681072.9U CN215121165U (en) | 2021-07-22 | 2021-07-22 | Communication circuit of left and right earshells of wireless headset and wireless headset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215121165U true CN215121165U (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121681072.9U Active CN215121165U (en) | 2021-07-22 | 2021-07-22 | Communication circuit of left and right earshells of wireless headset and wireless headset |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215121165U (en) |
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2021
- 2021-07-22 CN CN202121681072.9U patent/CN215121165U/en active Active
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