CN217135654U - Novel wireless microphone device - Google Patents
Novel wireless microphone device Download PDFInfo
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- CN217135654U CN217135654U CN202220762728.8U CN202220762728U CN217135654U CN 217135654 U CN217135654 U CN 217135654U CN 202220762728 U CN202220762728 U CN 202220762728U CN 217135654 U CN217135654 U CN 217135654U
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Abstract
The utility model discloses a novel wireless microphone device, which comprises a transmitter, a receiving host and a wireless communication unit, wherein the transmitter comprises a first main control unit, a first power supply, a pickup unit, a first audio processing unit and a 2.4G signal transmitting unit, and the receiving host comprises a second main control unit, a second audio processing unit, an output interface unit, a second power supply and a 2.4G signal receiving unit; through setting up 2.4G signal transmission unit and 2.4G signal receiving unit, can improve the interference killing feature, reduce electric quantity loss and cost, simultaneously, improve the distance of transmission to effectively solve the poor, the big and with high costs defect of electric quantity loss of interference killing feature that current line microphone device exists.
Description
Technical Field
The utility model relates to an audio equipment technical field especially relates to a novel wireless microphone device.
Background
Along with the development of society, the improvement of people's physical life, the demand of wireless microphone device is bigger and bigger, no matter be enterprise and public institution meeting pickup, also family amusement can not leave wireless microphone device, wireless microphone device divide into VHF wireless microphone device, UHF wireless microphone device and 5G wireless microphone device on the existing market, but current wireless microphone device still has following defect: (1) the VHF wireless microphone device has poor anti-jamming capability; (2) the UHF wireless microphone device has poor anti-jamming capability and large electric quantity loss; (3) the 5G wireless microphone device is relatively high in cost.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a novel wireless microphone device can solve the defect that the interference killing feature that current wireless microphone device exists is poor, the electric quantity loss is big and with high costs.
The technical scheme of the utility model is realized like this:
a novel wireless microphone device comprises a transmitter, a receiving host and a wireless communication unit, wherein the transmitter is connected with the receiving host through the wireless communication unit, the emitter comprises a first main control unit, a first power supply, a sound pickup unit, a first audio processing unit and a 2.4G signal emitting unit, the pickup unit is connected with the first audio processing unit, the first audio processing unit is respectively connected with the first main control unit and the 2.4G signal transmitting unit, the first main control unit is connected with the first power supply, the receiving host comprises a second main control unit, a second audio processing unit, an output interface unit, a second power supply and a 2.4G signal receiving unit, the 2.4G signal receiving unit, the second main control unit and the output interface unit are respectively connected with the second audio processing unit, and the second main control unit is connected with the second power supply.
As a further alternative of the novel wireless microphone device, the transmitter further includes a first display unit, the receiving host further includes a second display unit, the first display unit is connected to the first main control unit and the first power supply, and the second display unit is connected to the second main control unit and the second power supply.
As a further alternative of the novel wireless microphone device, the first audio processing unit includes an analog-to-digital converter and a first high-frequency signal processing unit, the analog-to-digital converter and the first high-frequency signal processing unit are respectively connected with the first main control unit, and the first high-frequency signal processing unit is further connected with the 2.4G signal transmitting unit.
As a further alternative of the novel wireless microphone device, the second audio processing unit includes a digital-to-analog converter and a second high-frequency signal processing unit, the second high-frequency signal processing unit is connected to the 2.4G signal receiving unit and the second main control unit, and the digital-to-analog converter is connected to the second main control unit and the output interface unit.
As a further alternative of the novel wireless microphone device, the first main control unit adopts an STC8A8K64S4a12 chip.
As a further alternative of the novel wireless microphone device, the second main control unit comprises an ADSP-21489 chip and its peripheral circuits.
As a further alternative of the novel wireless microphone device, the first high-frequency signal processing unit and the second high-frequency signal processing unit each include a Si24R1 chip and a HXS30f2802x chip, and the Si24R1 chip is connected to the HXS30f2802x chip.
As a further alternative of the new wireless microphone device, the analog-to-digital converter includes an ADC3101 analog-to-digital conversion chip and its peripheral circuits.
As a further alternative of the new wireless microphone device, the digital-to-analog converter includes an AK4396 decoding chip and its peripheral circuits.
As a further alternative of the novel wireless microphone device, the 2.4G signal transmitting unit adopts an AT2401C chip, and the 2.4G signal receiving unit adopts an RFX2402C chip.
The utility model has the advantages that: through setting up 2.4G signal transmission unit and 2.4G signal receiving unit, can improve the interference killing feature, reduce electric quantity loss and cost, simultaneously, improve the distance of transmission to effectively solve the poor, the big and with high costs defect of electric quantity loss of interference killing feature that current line microphone device exists.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram illustrating the components of a novel wireless microphone device of the present invention;
fig. 2 is a schematic circuit diagram of a second main control unit in the novel wireless microphone device of the present invention;
fig. 3 is a schematic circuit diagram of the Si24R1 chip in the novel wireless microphone device according to the present invention;
fig. 4 is a schematic circuit diagram of an HXS30f2802x chip in the novel wireless microphone device according to the present invention;
fig. 5 is a schematic circuit diagram of an analog-to-digital converter in a novel wireless microphone device according to the present invention;
fig. 6 is a schematic circuit diagram of the digital-to-analog converter in the novel wireless microphone device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-6, a novel wireless microphone device comprises a transmitter, a receiving host and a wireless communication unit, wherein the transmitter is connected with the receiving host through the wireless communication unit, the transmitter comprises a first main control unit, a first power supply, a pickup unit, a first audio processing unit and a 2.4G signal transmitting unit, the pickup unit is connected with the first audio processing unit, the first audio processing unit is respectively connected with the first main control unit and the 2.4G signal transmitting unit, the first main control unit is connected with the first power supply, the receiving host comprises a second main control unit, a second audio processing unit, an output interface unit, a second power supply and a 2.4G signal receiving unit, the second main control unit and the output interface unit are respectively connected with the second audio processing unit, the second main control unit is connected with the second power supply.
Specifically, the sound pickup unit in the transmitter converts the sound signal into an audio electric signal, the audio signal is subjected to filtering, correction, EQ compensation and other processing through the first audio processing unit, the first main control circuit unit controls the parameters of the audio signal, then the high-frequency 2.4G signal is formed through the 2.4G signal transmitting unit after the frequency modulation is carried out through the first audio processing unit, and sent to the receiving host computer through the wireless communication unit, after the receiving host computer receives the 2.4G signal, after the matching is completed, the frequency reduction, signal compensation and other processing are performed through the processing of the second audio processing unit, then the processing is performed through the second main control unit, and then the signals are sent to the second audio processing unit for conversion processing.
In this embodiment, through setting up 2.4G signal transmitting unit and 2.4G signal receiving unit, can improve the interference killing feature, reduce electric quantity loss and cost, simultaneously, improve the distance of transmission to effectively solve the poor, big and with high costs defect of electric quantity loss of interference killing feature that current line microphone device exists.
It should be noted that the wireless communication unit includes, but is not limited to, an antenna, and the sound pickup unit includes, but is not limited to, a sound pickup head, and is not limited specifically here.
Preferably, the transmitter further includes a first display unit, the receiving host further includes a second display unit, the first display unit is respectively connected to the first main control unit and the first power supply, and the second display unit is respectively connected to the second main control unit and the second power supply.
In this embodiment, by setting the first display unit and the second display unit, the effects of displaying information such as signal connection, volume, channel state, and opposite-frequency information can be achieved, and the user can conveniently check the information.
Preferably, the first audio processing unit includes an analog-to-digital converter and a first high-frequency signal processing unit, the analog-to-digital converter and the first high-frequency signal processing unit are respectively connected to the first main control unit, and the first high-frequency signal processing unit is further connected to the 2.4G signal transmitting unit.
In this embodiment, the analog-to-digital converter performs filtering correction EQ compensation and the like on the audio signal, and the first high-frequency signal processing unit performs frequency modulation.
Preferably, the second audio processing unit includes a digital-to-analog converter and a second high-frequency signal processing unit, the second high-frequency signal processing unit is respectively connected with the 2.4G signal receiving unit and the second main control unit, and the digital-to-analog converter is respectively connected with the second main control unit and the output interface unit.
In this embodiment, the second high-frequency signal processing unit performs down-conversion, signal compensation, and other processing on the high-frequency 2.4G signal, and the digital-to-analog converter performs digital-to-analog conversion on the signal processed by the second main control unit and sends the signal to the output interface unit; it should be noted that, the number of the second high-frequency signal processing units may be multiple, and by providing multiple second high-frequency signal processing units, the effect that one receiving host is connected with multiple transmitters and performs wireless transmission can be achieved, thereby reducing the cost and the occupied space.
Preferably, the first master control unit uses an STC8A8K64S4a12 chip.
Preferably, the second master control unit includes an ADSP-21489 chip and its peripheral circuits.
Preferably, the first high-frequency signal processing unit and the second high-frequency signal processing unit each include a Si24R1 chip and a HXS30f2802x chip, and the Si24R1 chip is connected to the HXS30f2802x chip.
In this embodiment, the Si24R1 is a wireless transceiver chip operating in the 2.4GHz ISM band, designed for low power consumption wireless applications, and integrated with an embedded ARQ baseband protocol engine. The working frequency range is 2400MHz-2525MHz, 126 channels with 1MHz bandwidth are shared, the Si24R1 adopts GFSK/FSK digital modulation and demodulation technology, the output power of a PA (data transmission rate) can be adjusted, three data rates of 2Mbps,1Mbps and 250Kbps are supported, the high data rate can finish the same data transceiving in a shorter time, so that the lower power consumption can be realized, the Si24R1 is particularly optimized for the application occasions with low power consumption, all register values and FIFO (first in first out) values are kept unchanged in a turn-off mode, the turn-off current is less than 0.7uA, a clock is kept to work in a standby mode, the current is less than 15uA, and the transceiving of data can be started in less than 130 uS; the HXS320F2802X chip is an energy-efficient 32-bit processor with a master frequency of 120MHz, adopts a Harvard bus architecture, and has a hardware multiplication/division unit, 4-channel high-speed DMA, fast interrupt response and processing, a unified memory programming model and efficient codes.
Preferably, the analog-to-digital converter includes an ADC3101 analog-to-digital conversion chip and its peripheral circuits.
In this embodiment, the ADC3101 analog-to-digital conversion chip 92dBA signal-to-noise ratio, supports ADC sampling rates from 8kHz to 96kHz, instruction programmable embedded miniDSP, flexible digital filtering with RAM programmable coefficients, instructions, and built-in processing blocks, low delay infinite impulse response filter for voice, linear phase finite impulse response filter for audio, additional programmable filters for equalization, noise cancellation or reduction, up to 128 programmable ADC digital filter coefficients, six audio inputs with configurable automatic gain control, programmable in single-ended or fully differential configurations, configurable to 3-states to easily achieve interoperability with other audio integrated circuits.
Preferably, the digital-to-analog converter comprises an AK4396 decoding chip and peripheral circuits thereof.
In this embodiment, the AK4396 decoding chip is a high-performance stereo DAC for 192kHz DVD audio sampling mode, and includes a 24-bit digital filter, the AK4396 decoding chip adopts a multi-bit structure of AKM, which provides a wide dynamic performance range while maintaining linearity to improve THD + N performance, the AK4396 decoding chip has a fully differential SCF output, which eliminates the need for an ac coupling capacitor, and improves the performance with excessive clock jitter, and the AK4396 decoding chip can accept 192kHz PCM data and 1-bit DSD data, and is suitable for a wide range of applications including DVD audio and SACD.
Preferably, the 2.4G signal transmitting unit adopts an AT2401C chip, and the 2.4G signal receiving unit adopts an RFX2402C chip.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A novel wireless microphone device is characterized by comprising a transmitter, a receiving host and a wireless communication unit, wherein the transmitter is connected with the receiving host through the wireless communication unit, the transmitter comprises a first main control unit, a first power supply, a pickup unit, a first audio processing unit and a 2.4G signal transmitting unit, the pickup unit is connected with the first audio processing unit, the first audio processing unit is respectively connected with the first main control unit and the 2.4G signal transmitting unit, the first main control unit is connected with the first power supply, the receiving host comprises a second main control unit, a second audio processing unit, an output interface unit, a second power supply and a 2.4G signal receiving unit, the second main control unit and the output interface unit are respectively connected with the second audio processing unit, the second main control unit is connected with the second power supply.
2. The novel wireless microphone device as claimed in claim 1, wherein the transmitter further comprises a first display unit, the receiving host further comprises a second display unit, the first display unit is connected to the first main control unit and the first power supply, and the second display unit is connected to the second main control unit and the second power supply.
3. The novel wireless microphone device as claimed in claim 2, wherein the first audio processing unit comprises an analog-to-digital converter and a first high-frequency signal processing unit, the analog-to-digital converter and the first high-frequency signal processing unit are respectively connected to the first main control unit, and the first high-frequency signal processing unit is further connected to the 2.4G signal transmitting unit.
4. The novel wireless microphone device as claimed in claim 3, wherein the second audio processing unit comprises a digital-to-analog converter and a second high-frequency signal processing unit, the second high-frequency signal processing unit is connected to the 2.4G signal receiving unit and the second main control unit, respectively, and the digital-to-analog converter is connected to the second main control unit and the output interface unit, respectively.
5. The novel wireless microphone device as claimed in claim 4, wherein the first main control unit employs an STC8A8K64S4a12 chip.
6. The novel wireless microphone device as claimed in claim 5, wherein the second master control unit comprises an ADSP-21489 chip and its peripheral circuits.
7. The novel wireless microphone device as claimed in claim 6, wherein the first and second high frequency signal processing units each comprise a Si24R1 chip and a HXS30f2802x chip, and the Si24R1 chip is connected to the HXS30f2802x chip.
8. The novel wireless microphone device as claimed in claim 7, wherein the analog-to-digital converter comprises an ADC3101 analog-to-digital conversion chip and its peripheral circuits.
9. The novel wireless microphone device as claimed in claim 8, wherein the digital-to-analog converter comprises an AK4396 decoding chip and its peripheral circuits.
10. The novel wireless microphone device as claimed in claim 9, wherein the 2.4G signal transmitting unit is an AT2401C chip, and the 2.4G signal receiving unit is an RFX2402C chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220762728.8U CN217135654U (en) | 2022-04-02 | 2022-04-02 | Novel wireless microphone device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220762728.8U CN217135654U (en) | 2022-04-02 | 2022-04-02 | Novel wireless microphone device |
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| Publication Number | Publication Date |
|---|---|
| CN217135654U true CN217135654U (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220762728.8U Active CN217135654U (en) | 2022-04-02 | 2022-04-02 | Novel wireless microphone device |
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| CN (1) | CN217135654U (en) |
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- 2022-04-02 CN CN202220762728.8U patent/CN217135654U/en active Active
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