CN211481443U

CN211481443U - Receiving device with TWS earphone used as wireless microphone

Info

Publication number: CN211481443U
Application number: CN202020141790.6U
Authority: CN
Inventors: 廖锦新
Original assignee: Guangzhou Litp Intelligent Technology Co ltd
Current assignee: Guangzhou Litp Intelligent Technology Co ltd
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2020-09-11
Anticipated expiration: 2030-01-22

Abstract

The utility model relates to an electronic apparatus or digital audio frequency field especially relate to a TWS earphone and regard as receiving arrangement that wireless microphone used, including bluetooth receiving and dispatching unit, key input unit, state indicating unit, central processing unit, audio processing unit and power management unit. The utility model relates to a TWS earphone adopts the TWS earphone as the transmitter of bluetooth public address system as the receiving arrangement that wireless microphone used, and the TWS headphone receiver that the design corresponds realizes the public address of wireless microphone.

Description

Receiving device with TWS earphone used as wireless microphone

Technical Field

The utility model relates to an electronic apparatus or digital audio frequency field especially relate to a TWS earphone is as receiving arrangement that wireless microphone used.

Background

Teaching, lecturing, meeting or academic reports, all of which require a microphone and sound amplification system. The traditional method comprises the following steps: 1. wired microphone + power amplifier + audio amplifier: the scheme can enlarge sound, and the rear row seats can also hear clearly; however, the distance between the speaker and the microphone is fixed, so that the posture is stiff, the writing cannot be performed, the body language is not rich, and the like. 2. Traditional U section/V section neck clip or handheld wireless microphone: the scheme can enlarge sound, and can form interaction with a blackboard book; however, the transmitter is too large, the crosstalk interference is caused, the power consumption is particularly high, and the microphone management is troublesome. 3. Lifting the microphone, amplifying the power and the sound box: the scheme is convenient to manage, and can freely write on the blackboard and freely display the body language. However, the sound pickup is too far away from the sound source, the original sound effect is poor, the sound pickup is easily interfered by the environmental sound, and the sound is turbid and noisy.

These mike and public address system all have various problems, influence extensive using widely. With the development of the bluetooth technology for many years, the bluetooth technology is widely applied to a plurality of short-distance communication fields by the outstanding characteristics of self-adaptive frequency hopping, low power consumption, miniaturization and the like. The Bluetooth sound amplifying system perfectly combines the Bluetooth technology and the digital audio processing technology by utilizing a plurality of technical advantages of the Bluetooth technology such as self-adaptive frequency hopping, low power consumption, data correction, error retransmission and the like, and effectively overcomes the defect of the traditional microphone in teaching sound amplifying application. And the development trend of teaching microphones is guided by the characteristics of automatic frequency alignment, no interference, simplicity, easy use and the like.

The Bluetooth public address system product can be matched at will and automatically frequency-matched. All the transmitters and the receivers can be matched at will and are all universal, the system adopts a close-range priority connection mechanism, and the system is started to automatically carry out frequency alignment and can be used at any time. However, the general bluetooth public address system must be specially configured with a wireless transmitter, which is inconvenient for the management and carrying of the transmitter.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model discloses a TWS earphone adopts the TWS earphone as the transmitter of bluetooth public address system as the receiving arrangement that wireless microphone used, and the TWS earphone receiver that the design corresponds realizes the public address of wireless microphone.

The realization of the technology is based on the development of a chip technology, namely that a mobile phone is connected with a main sound box, and then the main sound box is connected with a slave sound box in a Bluetooth Wireless mode, so that the real Bluetooth left and right sound channel Wireless separation use is realized. When the slave loudspeaker box is not connected, the master loudspeaker box returns to the monophonic tone quality. The latest Bluetooth headset is compatible with a Bluetooth 5.0 technology, Bluetooth 5.0 correspondingly improves and optimizes the speed of low-power-consumption equipment, the transmission speed is improved, and the effective working distance is increased. Bluetooth 5.0 has shown each item transmission ability that has promoted bluetooth, lets bluetooth have promoted 2 times transmission rate, 4 times transmission range and 8 times broadcast data package. In the future, the TWS earphone is taken as the most common wearable device and is necessarily popularized in a large quantity.

The TWS earphone is used as a wireless microphone emitter, and can realize one-man-one-wheat, borrow-free return, safety, sanitation and convenient management. The TWS earphone has the characteristic of universality, can be matched at will, and can be matched with a TWS earphone receiver for use. Teachers or speakers use the TWS earphones which are carried with the teachers or speakers to be changed into wireless microphones for use, so that the management is convenient, and the system is safe and sanitary. The TWS earphone and the receiver are provided with an automatic gain circuit, the sensitivity is high, attention is paid to human voice processing, the tone quality is clear, and the TWS earphone and the receiver are suitable for teaching application.

The TWS earphone adopts a self-adaptive frequency hopping and locking technology, the Bluetooth equipment is locked after the frequency matching is successful, and the problem of cross-frequency interference existing in the traditional V/U section wireless microphone is effectively solved. A close-range preferential connection mechanism is adopted to ensure that a plurality of receivers are not connected incorrectly, and the maximum using distance after connection is up to 30 meters without shielding. The TWS earphone is small and portable, and is convenient to carry only by the size of a thumb. The radiation of the TWS earphone is only one percent of that of the mobile phone, and the radiation is small. The TWS earphone effectively solves the problems of signal interruption and dead angles by using the technologies of Bluetooth duplex communication, self-owned data retransmission, error correction and the like.

The utility model relates to a receiving device of TWS earphone used as wireless microphone, which comprises a Bluetooth receiving and transmitting unit, a key input unit, a state indicating unit, a central processing unit (MCU), an audio processing unit and a power management unit; the Bluetooth receiving and transmitting unit adopts a Bluetooth 5.0 protocol, wireless communication data is connected to the central processing unit, and the decoded audio signal is connected to the audio processing unit; the key input unit and the state indicating unit are also connected to the central processing unit to realize the functions of Bluetooth connection setting, state display and the like; the central processing unit is wirelessly connected with the TWS earphone through the Bluetooth receiving and transmitting unit, and audio decoded by the Bluetooth receiving and transmitting unit is output to the power amplifier sound box after passing through the audio processing unit, so that teaching sound amplification is realized; the utility model discloses a TWS headphone receiver realizes that TWS earphone uses as wireless microphone public address, can extensive user classroom teaching, training, occasions such as lecture report, and application range is wide, convenience simple to use.

Furthermore, if the bluetooth transceiver unit does not have an audio decoding circuit, the central processing unit receives the digital audio signal, decodes the analog audio signal, and outputs the analog audio signal to the power amplifier loudspeaker box after sending the analog audio signal to the audio processing unit.

Further, the state of the state indicating unit can be displayed by an LED lamp or a liquid crystal screen.

Further, the audio processing unit further includes adaptive feedback suppression (AFC), noise cancellation (ANS), Automatic Gain (AGC), echo cancellation (AEC), and other circuits.

The utility model has the advantages that:

compared with the prior art, the utility model discloses TWS earphone uses as wireless microphone public address, and application range is wide, and is simple and convenient.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and schematic or simplified schematic drawings only, not for the purpose of limiting the same, and not for the purpose of limiting the same; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "vertical", "horizontal", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Furthermore, if terms such as "first," "second," etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, it will be apparent to those of ordinary skill in the art that the specific meanings of the above terms may be understood according to particular circumstances.

Example 1:

as shown in fig. 1, the utility model discloses a receiving arrangement that TWS earphone used as wireless microphone includes TWS earphone, TWS headphone receiver, power amplifier and audio amplifier etc. and wherein TWS headphone receiver is the utility model discloses a receiving arrangement. The TWS earphone receiver comprises a Bluetooth transceiving unit, a key input unit, a state indicating unit, a central processing unit, an audio processing unit and a power management unit; the Bluetooth receiving and transmitting unit adopts a Bluetooth 5.0 protocol, receiving and transmitting data are connected to the central processing unit, and decoded audio signals are connected to the audio processing unit; the key input unit and the state indicating unit are also connected to the central processing unit to realize the functions of Bluetooth connection setting, state display and the like; the central processing unit processes the Bluetooth receiving and transmitting unit to be wirelessly connected with the TWS earphone, and audio decoded by the Bluetooth receiving and transmitting unit is output to the power amplifier loudspeaker box after passing through the audio processing unit, so that teaching sound reinforcement is realized.

Example 2:

as shown in fig. 2, this embodiment is substantially the same as embodiment 1, wherein if the bluetooth transceiver unit does not have an audio decoding circuit, the central processing unit receives a digital audio signal, decodes an analog audio signal, and outputs the analog audio signal to the power amplifier speaker after sending the analog audio signal to the audio processing unit.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A receiving device of TWS earphone as wireless microphone is characterized in that: the Bluetooth wireless remote control system comprises a Bluetooth receiving and transmitting unit, a key input unit, a state indicating unit, a central processing unit, an audio processing unit and a power management unit, wherein the central processing unit receives and transmits data by adopting a Bluetooth protocol through the Bluetooth receiving and transmitting unit, and a decoded audio signal is connected to the audio processing unit; the key input unit and the state indicating unit are also connected to the central processing unit to realize the functions of Bluetooth connection setting, state display and the like; the central processing unit is in wireless connection communication with the TWS earphone through the Bluetooth receiving and transmitting unit, and audio decoded by the Bluetooth receiving and transmitting unit is output to the power amplifier loudspeaker box after passing through the audio processing unit, so that teaching sound reinforcement is realized.

2. A receiving device for a TWS headset used as a wireless microphone according to claim 1, wherein: if the Bluetooth receiving and transmitting unit does not have an audio decoding circuit, the central processing unit receives the digital audio signals, decodes the analog audio signals, and outputs the analog audio signals to the power amplifier loudspeaker box after sending the analog audio signals to the audio processing unit.

3. A receiving device for a TWS headset used as a wireless microphone according to claim 1, wherein: the state of the state indicating unit can be displayed by an LED lamp or a liquid crystal screen.

4. A receiving device for a TWS headset used as a wireless microphone according to claim 1, wherein: the audio processing unit further comprises adaptive feedback suppression (AFC), noise cancellation (ANS), Automatic Gain (AGC), echo cancellation (AEC) circuits.