CN203352779U - Wireless microphone system - Google Patents
Wireless microphone system Download PDFInfo
- Publication number
- CN203352779U CN203352779U CN 201320350785 CN201320350785U CN203352779U CN 203352779 U CN203352779 U CN 203352779U CN 201320350785 CN201320350785 CN 201320350785 CN 201320350785 U CN201320350785 U CN 201320350785U CN 203352779 U CN203352779 U CN 203352779U
- Authority
- CN
- China
- Prior art keywords
- wireless
- microphone system
- audio
- wireless microphone
- receiver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Transmitters (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model relates to a wireless microphone system, which belongs to the multimedia wireless communication technical field. The utility model aims to solve problems existing in a conventional wireless microphone system and characterized by short transmission distance and mediocre signal qualities. The wireless microphone system provided by the utility model mainly comprises transmitters and a receiver. One to four transmitters can be arranged. The transmitters are connected with the receiver in a wireless way. Microphone audio signal wireless transmission can be achieved through a PurePathWireless technology. By using the advantages of the technology, the wireless microphone system achieves non-compression low-delay and relatively long-distance audio signal wireless transmission on the premise that high-quality sampling and conversion of the microphone audio signals can be guaranteed. The wireless microphone system is suitable for popularization and application.
Description
Technical field
The utility model belongs to the multi-media radio communication technical field, particularly relates to a kind of wireless microphone system.
Background technology
Microphone generally can be divided into wired and wireless two kinds, and the use of wire microphone is very inconvenient, and user's mobility is greatly limited; Wireless microphone adopts Bluetooth technology or FM technology to carry out the signal transmission mostly, yet adopt the microphone system narrow bandwidth of Bluetooth technology, transmission range only has ten meters left and right, adopt the microphone system poor anti jamming capability of FM technology, to regulate and transmit and receive frequency in use, regulate inaccurate easy generation noise.
Summary of the invention
Goal of the invention:
The utility model provides a kind of wireless microphone system, its purpose is to utilize the advantage of PurePath Wireless technology, guaranteeing under the high quality sample conversion prerequisite of microphone audio signal, realizing the non-compression of audio signal, low postpone and than remote wireless transmission.
Technical scheme:
The utility model is achieved through the following technical solutions:
A kind of wireless microphone system is characterized in that: this wireless microphone system mainly comprises Receiver And Transmitter, and receiver is connected with transmitter by wireless mode.
Described wireless microphone system can comprise one or two or three or four transmitters.
Transmitter comprises miaow head, amplifier of microphone, volume potentiometer, analog to digital converter, wireless audio transceiver, electric power management circuit, the miaow head connects amplifier of microphone, amplifier of microphone connects volume potentiometer, volume potentiometer connection mode number converter, analog to digital converter connects wireless audio transceiver, and electric power management circuit is the transmitter power supply.
Receiver comprises wireless audio transceiver, digital to analog converter, RCA interface and electric power management circuit, wireless audio transceiver linking number weighted-voltage D/A converter, and digital to analog converter connects the RCA interface, and electric power management circuit is the receiver power supply.
Described electric power management circuit comprises power supply indicator, battery, USB charge port, switch and battery management module, and battery adopts 3.6V, the lithium battery of capacity 450mAH, and battery management module manages from the USB charge port and to discharging and recharging of battery.
Described wireless audio transceiver comprises ANTENN AUDIO chip, peripheral circuit, audio network status indicator lamp and pairing button, ANTENN AUDIO built-in chip type ARM Cortex M3 processor, 2.4G wireless transceiver and audio frequency coprocessor, the pairing button is connected with the ANTENN AUDIO chip with the audio network status indicator lamp.
Advantage and effect:
Enforcement by technical solutions of the utility model, can realize obtaining audio signal and carry out the quality digital sampling from the miaow head, and the digital audio flow data is carried out to non-compression wireless transmission, the effect of processing for miscellaneous equipment in receiving terminal reduction output, wireless transmission distance can reach more than 100 meters.
Advantage of the present utility model and good effect are:
1, microphone signal wireless transmission, the user is easy to use;
Transmission when 2, supporting four channel signals;
3, Digital Transmission, cancelled transmission line, and antijamming capability promotes;
4, the wireless audio frequency transmission function scheme has AFH, forward error correction, and the voice data mistake retransmits, and a series of characteristics such as healing automatically after network loss, have good compossibility with other 2.4G system;
5, the microphone signal quality is high, supports 16bit, the signal stream of 44.1KHz specification;
6, transmission delay is low to moderate 15ms, and synchronous sound is good;
7, audio wireless long transmission distance, can reach more than 100 meters.
the accompanying drawing explanation:
Fig. 1 is the utility model overall schematic;
Fig. 2 is the utility model transmitter architecture schematic diagram;
Fig. 3 is the utility model receiver structure schematic diagram;
Fig. 4 is the utility model transmitter circuitry schematic diagram;
Fig. 5 is the utility model receiver circuit schematic diagram;
Fig. 6 is the utility model wireless audio transceiver circuit theory diagrams.
Description of reference numerals:
1. transmitter, 2. receiver, 3. miaow head, 4. amplifier of microphone, 5. volume potentiometer, 6. analog to digital converter, 7. wireless audio transceiver, 8. electric power management circuit, 9. digital to analog converter, 10. RCA interface, 15. audio network status indicator lamps, 16. pairing buttons.
embodiment:
Below in conjunction with accompanying drawing, the utility model is added and is described further:
The utility model is a kind of wireless microphone system, it is characterized in that: Fig. 1 is general structure schematic diagram of the present utility model, as shown in fig. 1: this wireless microphone system mainly comprises receiver 2 and transmitter 1, and receiver 2 is connected with transmitter 1 by wireless mode.
Described wireless microphone system can comprise one or two or three or four transmitters 2.
Fig. 2 is transmitter 1 structural representation of the present utility model, as shown in Figure 2: transmitter 1 comprises miaow head 3, amplifier of microphone 4, volume potentiometer 5, analog to digital converter 6, wireless audio transceiver 7, electric power management circuit 8, miaow head 3 connects amplifier of microphone 4, amplifier of microphone 4 connects volume potentiometer 5, volume potentiometer 5 connection mode number converters 6, analog to digital converter 6 connects wireless audio transceiver 7, and electric power management circuit 8 is transmitter 1 power supply.
Fig. 3 is receiver 2 structural representations of the present utility model, as shown in Figure 3: receiver 2 comprises wireless audio transceiver 7, digital to analog converter 9, RCA interface 10 and electric power management circuit 8, wireless audio transceiver 7 linking number weighted-voltage D/A converters 9, digital to analog converter 9 connects RCA interface 10, and electric power management circuit 8 is receiver 2 power supplies.
Described electric power management circuit 8 comprises power supply indicator, battery, USB charge port, switch and battery management module, and battery adopts 3.6V, the lithium battery of capacity 450mAH, and battery management module manages from the USB charge port and to discharging and recharging of battery.
Fig. 6 is wireless audio transceiver circuit theory diagrams of the present utility model, as shown in Figure 6: described wireless audio transceiver 7 comprises ANTENN AUDIO chip, peripheral circuit, audio network status indicator lamp 15 and pairing button 16, ANTENN AUDIO built-in chip type ARM Cortex M3 processor, 2.4G wireless transceiver and audio frequency coprocessor, pairing button 16 is connected with the ANTENN AUDIO chip with audio network status indicator lamp 15.
The physical circuit principle of transmitter and receiver is as shown in Figure 4, Figure 5:
As shown in Figure 4: the weak audio signal that the microphone amplifying circuit in transmitter 1 picks up the miaow head is setovered and is amplified, audio signal after amplification is cushioned through the voltage follower circuit of another passage formation of low noise amplifier, analog to digital converter obtains audio system clock MCLK from wireless audio transceiver, and analog signal is carried out to the digitlization conversion, the I of conversion output
2the S audio stream enters wireless audio transceiver and is sent, electric power management circuit mainly is responsible for management of charging and discharging and the system power supply of lithium battery, when the USB charge port connects external power source, management circuit can automatic switchover system by external power source, and to lithium cell charging, until be full of, if do not connect external power source, management circuit can switch by lithium battery is powered to system.
As shown in Figure 5: receiver comprises wireless audio transceiver, two stereo digital to analog converters, RCA output port and electric power management circuits, and wireless audio transceiver receives and comes from the voice data of four passages, and is converted into the I of two passages
2the output of S data flow, I
2the S data flow enters respectively two digital to analog converters and is reduced to analog signal, analog signal enters the RCA output port, for outside, use, electric power management circuit mainly is responsible for management of charging and discharging and the system power supply of lithium battery, when the USB charge port connects external power source, management circuit can automatic switchover system by external power source, and to lithium cell charging, until be full of, if do not connect external power source, management circuit can switch by lithium battery is powered to system.
Wireless audio transceiver is configured by PurePath Wireless Configurator software, completes the download of configuration file by CC Debugger, wireless audio transceiver in transmitter is configured to the Slave pattern, wireless audio transceiver in receiver is configured to the Master pattern, wireless transmission by four voice-grade channels of Configuration to inside modules audio stream and IO mapping, do not arrange any audio network and filter in configuration, program needs after having downloaded wireless audio transceiver Master and four wireless audio transceiver Slave are carried out to pre-networking pairing, process is as follows: wireless audio transceiver Master and four wireless audio transceiver Slave are powered on, can see that five audio network status indicator lamps 15 are all bright with about 0.02 second, 0.98 the rule of going out second starts flicker, at this moment press the pairing button 16 of a wireless audio transceiver Master, then press respectively the pairing button 16 of a wireless audio transceiver Slave, can see that five audio network status indicator lamps 15 are all bright with about 0.5 second, 0.5 the rule of going out second starts flicker, mean pre-networking success, so far, after powering on, wireless audio transceiver just can automatically initiate network, automatically add network transmitting data in real time.
Claims (6)
1. a wireless microphone system, it is characterized in that: this wireless microphone system mainly comprises receiver (2) and transmitter (1), receiver (2) is connected with transmitter (1) by wireless mode.
2. a kind of wireless microphone system according to claim 1 is characterized in that: described wireless microphone system can comprise one or two or three or four transmitters (2).
3. a kind of wireless microphone system according to claim 1, it is characterized in that: transmitter (1) comprises miaow head (3), amplifier of microphone (4), volume potentiometer (5), analog to digital converter (6), wireless audio transceiver (7), electric power management circuit (8), miaow head (3) connects amplifier of microphone (4), amplifier of microphone (4) connects volume potentiometer (5), volume potentiometer (5) connection mode number converter (6), analog to digital converter (6) connects wireless audio transceiver (7), electric power management circuit (8) is transmitter (1) power supply.
4. a kind of wireless microphone system according to claim 1, it is characterized in that: receiver (2) comprises wireless audio transceiver (7), digital to analog converter (9), RCA interface (10) and electric power management circuit (8), wireless audio transceiver (7) linking number weighted-voltage D/A converter (9), digital to analog converter (9) connects RCA interface (10), and electric power management circuit (8) is receiver (2) power supply.
5. a kind of wireless microphone system according to claim 3, it is characterized in that: described electric power management circuit (8) comprises power supply indicator, battery, USB charge port, switch and battery management module, battery adopts 3.6V, the lithium battery of capacity 450mAH, battery management module manages from the USB charge port and to discharging and recharging of battery.
6. a kind of wireless microphone system according to claim 1, it is characterized in that: described wireless audio transceiver (7) comprises ANTENN AUDIO chip, peripheral circuit, audio network status indicator lamp (15) and pairing button (16), ANTENN AUDIO built-in chip type ARM Cortex M3 processor, 2.4G wireless transceiver and audio frequency coprocessor, pairing button (16) is connected with the ANTENN AUDIO chip with audio network status indicator lamp (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320350785 CN203352779U (en) | 2013-06-19 | 2013-06-19 | Wireless microphone system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320350785 CN203352779U (en) | 2013-06-19 | 2013-06-19 | Wireless microphone system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203352779U true CN203352779U (en) | 2013-12-18 |
Family
ID=49752623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320350785 Expired - Fee Related CN203352779U (en) | 2013-06-19 | 2013-06-19 | Wireless microphone system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203352779U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231456A (en) * | 2016-09-14 | 2016-12-14 | 武汉智能鸟无人机有限公司 | A kind of multiple wireless mike |
| CN107181992A (en) * | 2017-07-26 | 2017-09-19 | 江苏中协智能科技有限公司 | A kind of network wireless microphone with intelligent control function |
| CN114900208A (en) * | 2022-05-09 | 2022-08-12 | 北京悦米科技有限公司 | Pairing-free technical method for U-section wireless microphone |
-
2013
- 2013-06-19 CN CN 201320350785 patent/CN203352779U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231456A (en) * | 2016-09-14 | 2016-12-14 | 武汉智能鸟无人机有限公司 | A kind of multiple wireless mike |
| CN107181992A (en) * | 2017-07-26 | 2017-09-19 | 江苏中协智能科技有限公司 | A kind of network wireless microphone with intelligent control function |
| CN114900208A (en) * | 2022-05-09 | 2022-08-12 | 北京悦米科技有限公司 | Pairing-free technical method for U-section wireless microphone |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203608193U (en) | Hand-held short-wave radio station based on radio frequency digitalization | |
| CN206042256U (en) | Bluetooth headset audio amplifier integrated device | |
| CN101170325A (en) | Bluetooth wireless microphone | |
| CN203352779U (en) | Wireless microphone system | |
| CN107484143A (en) | A kind of talk back equipment and its intercommunication means of communication based on wireless network | |
| CN105100993A (en) | Bluetooth earphone | |
| CN205071293U (en) | Digital signal processor and audio frequency processing apparatus | |
| CN203912164U (en) | Wireless Bluetooth sound equipment system capable of being used as a mobile power supply | |
| CN209786836U (en) | Intelligence bluetooth headset storehouse of charging | |
| CN203327219U (en) | Multifunctional wireless sound system | |
| CN202334765U (en) | Baby monitor | |
| CN204031410U (en) | Optical fiber decoding wireless game earphone | |
| CN205356681U (en) | Super remote wireless microphone system | |
| CN206024039U (en) | A kind of multiple wireless mike | |
| CN207399470U (en) | A kind of multifunction blue tooth Mobile loudspeaker box | |
| CN201134803Y (en) | Bluetooth wireless microphone | |
| CN205454036U (en) | Earphone converter and earphone | |
| CN203352756U (en) | Wireless earphone adapter | |
| CN202679463U (en) | Mobile terminal and earphone interface processing circuit for mobile terminal | |
| CN207075067U (en) | Bluetooth microphone based on Aptx LL codings | |
| CN202737537U (en) | Mobile electronic equipment charging device with function of sound equipment | |
| CN202535505U (en) | Bluetooth commutator of universal type earphone | |
| CN203368730U (en) | High fidelity 5.1 channel wireless audio system | |
| CN202261444U (en) | Infrared emitter based on mobile phone platform | |
| CN219802530U (en) | Low-power consumption wireless microphone based on E-type radio frequency power amplifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20170619 |