CN212013004U

CN212013004U - Wireless external sound pickup and reproduction device for mobile intelligent terminal

Info

Publication number: CN212013004U
Application number: CN202021103670.3U
Authority: CN
Inventors: 菅舒敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2020-11-24
Anticipated expiration: 2030-06-16

Abstract

The utility model provides a wireless external sound pick-up and release device for a mobile intelligent terminal, which comprises an emitting and receiving device and a sound pick-up and release control device; the first chip is provided with a wireless transceiver circuit A and a communication module, the wireless transceiver circuit A is connected with the communication module, and the communication module is connected with the physical plug; the second chip is internally provided with a wireless transceiving circuit A', an audio coding and decoding circuit, a pickup driving circuit and a playback driving circuit; the pickup driving circuit is connected with the pickup unit; the playback driving circuit is connected with the playback unit; the wireless receiving and transmitting circuit A' is connected with the audio coding and decoding circuit; the audio encoding and decoding circuit is respectively connected with the pickup driving circuit and the playback driving circuit; the pickup driving circuit is connected with the playback driving circuit; the transmitting and receiving device is wirelessly connected with the pick-and-place sound control device. The utility model discloses an external sound device of putting of picking up both can wireless connection remove intelligent terminal, have again and pick up the advantage that the sound time delay is low, the pickup is effectual of putting.

Description

Wireless external sound pickup and reproduction device for mobile intelligent terminal

Technical Field

The utility model relates to a pick up and put the sound device, concretely relates to wireless external pick up and put sound device for mobile intelligent terminal.

Background

With the popularization of mobile intelligent terminals such as smart phones and tablet computers, sound reproduction and pickup through the mobile intelligent terminals become essential items for personal office work and entertainment, and sound pickup devices which are convenient to carry and use are good choices. The existing sound pickup and playback devices matched with the mobile intelligent terminal are mainly classified into two types: firstly, the matched pick-up and playing device is large in size, needs an independent power supply and is relatively clumsy; comprises a line microphone, a sound card, a mobile phone interface adapter, an earphone or a sound box; the other is a Bluetooth sound pickup device which is convenient to carry and use, but has a common sound pickup effect and high time delay (90-150 ms). Can not meet the daily office and entertainment requirements of people.

SUMMERY OF THE UTILITY MODEL

In view of the above background, the present invention is directed to: the utility model provides a wireless external sound device of putting of picking up for mobile intelligent terminal, but both wireless connection mobile intelligent terminal has again to pick up and put the advantage that the sound time delay is low, the pickup is effectual, but also portable.

The above object of the utility model is realized through following technical scheme:

the wireless external sound pick-up and playing device for the mobile intelligent terminal comprises a transmitting and receiving device and a sound pick-up and playing control device;

the transmitting and receiving device comprises a physical plug and a chip I, wherein the chip I is provided with a wireless transceiving circuit A and a communication module embedded with a USB standard protocol, the wireless transceiving circuit A is electrically connected with the communication module and carries out bidirectional signal transmission, and the communication module is electrically connected with the physical plug and carries out bidirectional signal transmission;

the pick-up and play sound control device comprises a pick-up unit, a play unit, a power supply and a second chip, wherein the second chip is internally provided with a wireless transceiving circuit A', an audio coding and decoding circuit, a pick-up driving circuit and a play driving circuit; the pickup driving circuit is electrically connected with the pickup unit; the playback driving circuit is electrically connected with the playback unit; the wireless transceiver circuit A' is electrically connected with the audio encoding and decoding circuit and carries out bidirectional signal transmission; the audio coding and decoding circuit is respectively electrically connected with the pickup driving circuit and the playback driving circuit; the pickup driving circuit and the playback driving circuit are electrically connected in the second chip; the power supply is electrically connected with the second chip and supplies power to the second chip;

the transmitting and receiving device and the pick-and-place sound control device are in one-to-one pairing with the wireless transceiver circuit A through the wireless transceiver circuit A' to form wireless connection.

The utility model discloses an in the scheme, the transceiver be used for passing through physics plug connection mobile intelligent terminal, for example can be through the Type-C socket that suitable physics plug grafting mainstream mobile intelligent terminal on the existing market used, in order to realize transceiver and mobile intelligent terminal's physical connection.

In the scheme of the utility model, the concrete form of the sound pick-up and playing control device is not limited, and the sound pick-up and playing control device can be a combined device formed by connecting a device provided with the chip II with the pickup equipment provided with the pickup unit and the playing equipment provided with the playing unit through external physical sockets respectively; the sound pickup unit, the sound reproduction unit or the device provided with the second chip can be integrated in the same shell, and the second chip is respectively and electrically connected with the sound pickup unit and the sound reproduction unit in the shell of the integrated device. The pickup equipment provided with the pickup unit and the playback equipment provided with the playback unit can be various pickup equipment and playback equipment in the prior art. The pickup equipment can be microphones with various specifications and models; the playback equipment can be earphones, loudspeakers with various specifications and models, or sound equipment with power amplifiers, and the like.

In the scheme of the utility model, the specific specifications and forms of the first chip and the second chip of the transmitting and receiving device are not particularly limited, and the first chip and the second chip can be single chips or more than 2 chip groups; the chip can be a general chip or a special chip.

The utility model discloses an in the scheme, wireless transceiver circuit A and can be with it the wireless transceiver circuit A' of pairing can be among the prior art various circuit forms that can establish wireless connection, be not limited to 2.4G wireless transceiver circuit or bluetooth wireless transceiver circuit.

In order to increase the convenience for long-time use of the user, the utility model discloses in the preferred scheme, expand the charging function on the transmitting and receiving device; namely, the transmitting and receiving device is further provided with a charging socket for connecting an external power supply; meanwhile, the first chip is further provided with a charging module, a PD charging protocol circuit is arranged in the charging module, and the charging module is respectively and electrically connected with the physical plug and the charging socket. Therefore, the charging function can be used while the sound pick-up and playing function is used, and the intelligent mobile terminal always has enough electric quantity in the sound pick-up and playing process is guaranteed. The utility model discloses a pick up and put sound device working process and principle description as follows:

the transmitting and receiving device is physically connected with the mobile intelligent terminal matched with any interface so as to establish USB communication connection between the transmitting and receiving device and the mobile intelligent terminal; connecting the pick-up and play sound control device with pick-up and play equipment to establish signal connection between the pick-up and play sound control device and the pick-up and play equipment; after the physical connection is completed, the wireless communication connection is established between the transmitting and receiving device and the pick-and-place sound control device through one-to-one pairing of the wireless transmitting and receiving circuit A' and the wireless transmitting and receiving circuit A. The music audio signal from the mobile intelligent terminal is connected through the USB communication and is transmitted to the communication module of the transmitting and receiving device in a digital signal form, the communication module carries out air transmission on the digital signal through the wireless receiving and transmitting circuit A of the transmitting and receiving device, the wireless receiving and transmitting circuit A' of the pick-and-place sound control device matched with the wireless receiving and transmitting circuit A receives the digital signal and then transmits the digital signal to the audio coding and decoding circuit of the pick-and-place sound control device, an analog signal is obtained through audio decoding, and the analog signal is further transmitted to the sound playing driving circuit of the pick-and-place sound control device, namely is output through an external sound playing device.

Meanwhile, the audio analog signals received by the external pickup equipment and the pickup driving circuit can be transmitted to an audio coding and decoding circuit of the pickup and playing sound control device on one hand, digital signals are generated through coding, then the digital signals are transmitted in the air through a wireless receiving and transmitting circuit A' of the pickup and playing sound control device, are received by the wireless receiving and transmitting circuit A of the transmitting and receiving device, are transmitted to the mobile intelligent terminal through a communication module of the transmitting and receiving device through USB communication connection, and can be recorded and stored by corresponding software of the mobile intelligent terminal; on the other hand, through the electric connection of the pickup driving circuit and the playback driving circuit in the chip II, the audio analog signals received by the external pickup equipment can be simultaneously and directly transmitted to the playback driving circuit and the playback equipment, so that the effect of real-time monitoring can be achieved, and the synchronization of pickup and playback is realized.

The external sound pickup and playback device of the utility model transmits digital signals in a wireless connection mode and is provided with a path from a sound pickup driving circuit to a sound playback driving circuit. Compared with the prior art, the external sound pickup and playback device of the utility model can connect the sound pickup equipment with the mobile intelligent terminal in a wireless and portable way, so as to get rid of the constraint of wires and achieve the high-definition sound recording effect; meanwhile, the one-to-one wireless connection mode does not need to set more compatible devices (such as an external sound card) between the mobile intelligent terminal and the sound pick-up and playing device, so that resources are saved, and the sound pick-up and playing can achieve the effect of low delay. The utility model discloses in the preferred scheme, the transmitting and receiving device who has expanded the interface that charges can also support mobile intelligent terminal to charge when picking up and putting sound work. The utility model discloses an external sound reproduction device of picking up is applicable to ordinary crowd K song or professional recording etc. and requires higher scene to pick up the sound quality of playing.

Drawings

Fig. 1 is a schematic structural diagram of an external sound pickup and playback device according to embodiment 1 of the present invention.

Fig. 2 is a block diagram of the working principle of the external sound pickup and playback device according to embodiment 1 of the present invention.

Fig. 3 is a schematic structural diagram of the external sound pickup and playback device of the present invention after the shell of the hand-held sound pickup and playback controller is cut open in embodiment 2.

The reference numerals are explained below:

100-transmitting and receiving device, 101-Type-C plug, 102-chip I, 1021-wireless transceiver circuit A, 1022-communication module, 1023-charging module, 103-charging interface, 200-transfer box Type sound picking and playing control box, 201-chip II, 2011-wireless transceiver circuit A', 2012-audio coding and decoding circuit, 2013-sound picking and driving circuit, 2014-sound playing driving circuit, 202-audio input interface, 203-audio output interface, 300-earphone, 400-microphone, 500-smart phone, 501-Type-C interface, 600-external power supply, 700-handheld sound picking and playing controller, 701-microphone shell, 702-circuit board, 703-battery, 704-earphone socket.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings by way of examples, but the scope of the invention is not limited to the specific examples and drawings.

Example 1

A wireless external sound pick-up and play device for a mobile intelligent terminal is shown in figure 1 and comprises a transmitting and receiving device 100 and a transfer box type sound pick-up and play control box 200.

As shown in fig. 1 and 2, the transmitting and receiving device 100 is externally provided with a Type-C plug 101 and a charging interface 103, and internally provided with a first chip 102. The Type-C plug 101 is used for being connected with the smart phone 500 through a Type-C interface 501. The charging interface 103 is used for connecting an external power supply 600. The first chip 102 is provided with a low-power consumption wireless transceiving circuit a1021, a communication module 1022 embedded with a USB standard protocol, and a charging module 1023 embedded with a PD charging protocol circuit. The wireless transceiver circuit a1021 and the communication module 1022 are electrically connected through a data transmission line in the first chip 102, and perform bidirectional signal transmission. The communication module 1022 is electrically connected with the Type-C plug 101, and further connected with the smart phone 500 through the Type-C interface 501, and performs bidirectional signal transmission. The charging module 1023 respectively with the Type-C plug 101 with the interface 103 electricity that charges be connected, and then connect smart mobile phone 500 through Type-C interface 501 for charge for smart mobile phone 500.

As shown in fig. 1 and 2, the sound pick-up and playing control box 200 of the adaptor box type is externally provided with an audio input interface 202 and an audio output interface 203, and internally provided with a second chip 201, and the second chip 201 is internally provided with a low-power wireless transceiver circuit a'2011, an audio codec circuit 2012, a sound pick-up driving circuit 2013 and a playing driving circuit 2014; the pickup driving circuit 2013 is electrically connected with the audio input interface 202; the playback driving circuit is electrically connected with the audio output interface 203; the wireless transceiving circuit a'2011 and the audio codec circuit 2012 are electrically connected in the second chip 201 through a data transmission line and perform bidirectional signal transmission; the audio codec circuit 2012 is respectively electrically connected with the pickup driving circuit 2013 and the playback driving circuit 2014 in the second chip 201 through data transmission lines; the pickup driving circuit 2013 and the playback driving circuit 2014 are electrically connected in the second chip 201 through data transmission lines.

The transmitting and receiving device 100 and the adaptor box type pick-and-place sound control box 200 are wirelessly connected in a one-to-one pairing manner through the wireless transceiver circuit a'2011 and the wireless transceiver circuit a 1021. The wireless connection is not limited to the wireless connection based on the 2.4G wireless transceiver circuit or the wireless connection based on the Bluetooth wireless transceiver circuit.

As shown in fig. 1 and 2, the sound pick-up and play control box 200 of the adaptor box is respectively connected with a microphone 400 and an earphone 300 through an audio input interface 202 and an audio output interface 203, so as to form a combined device for controlling sound pick-up and play.

The working process and principle of the external sound pick-up and play device of the embodiment are described as follows:

the Type-C plug 101 of the transmitting and receiving device 100 is used for being plugged with the Type-C interface 501 of the smart phone 500, a USB standard protocol is embedded in a communication module 1022 of the transmitting and receiving device 100, bidirectional USB communication connection can be established with the smart phone 500, and signals can be uploaded and downloaded through the USB standard protocol; meanwhile, the smart phone 500 can supply power to the transmitting and receiving device 100. The microphone 400 and the earphone 300 are respectively plugged in the audio input interface 202 and the audio output interface 203 of the sound pick-up and playing control box 200 of the adapter box type, and the sound pick-up driving circuit 2013 and the sound playing driving circuit 2014 in the sound pick-up and playing control box 200 of the adapter box type can respectively establish signal connection with the microphone 400 and the earphone 300. After the physical connection is completed, the switching box type sound pick-and-place control box 200 is opened, and wireless communication connection is established by one-to-one pairing of the wireless transceiver circuit a'2011 and the wireless transceiver circuit a1021 of the transmitting and receiving device 100. The music audio signal from the smart phone 500 is connected through the USB communication, and is transmitted to the communication module 1022 of the transmitting and receiving device 100 in the form of a digital signal, the communication module 1022 transmits the digital signal over the air through the wireless transceiver circuit a1021 of the transmitting and receiving device 100, the wireless transceiver circuit a'2011 of the adaptor box type sound pick-and-place control box 200 paired with the wireless transceiver circuit a1021 receives the digital signal, and transmits the digital signal to the audio codec circuit 2012 of the adaptor box type sound pick-and-place control box 200, and obtains an analog signal through audio decoding, and the analog signal is further transmitted to the sound playback driving circuit 2013 of the adaptor box type sound pick-and-place control box 200, and is further output through the earphone 300.

Meanwhile, the external microphone 400 inputs the picked sound, and the audio analog signal received by the pickup driving circuit 2014 can be transmitted to the audio codec circuit 2012 of the sound pick-and-place control box 200 of the adapter box type on the one hand, a digital signal is generated by encoding, the digital signal is transmitted in the air by the wireless transceiver circuit a'2011 of the sound pick-and-place control box 200 of the adapter box type, and is received by the wireless transceiver circuit a1021 of the transmitting and receiving device 100, and is further transmitted to the smart phone 500 through the communication module 1022 of the transmitting and receiving device 100 through the USB communication connection, so that the digital signal can be recorded and stored by corresponding software of the smart phone 500; on the other hand, through the electrical connection between the pickup driving circuit 2014 and the playback driving circuit 2013 in the chip, the audio analog signal received by the external microphone 400 can be directly transmitted to the playback driving circuit 2013 and the earphone at the same time, so that the effect of real-time monitoring can be achieved, and the synchronization of pickup and playback can be realized.

In addition, in the process of sound pick-up and sound release, the charging interface 103 of the transmitting and receiving device 100 can be used for realizing synchronous charging, so that the smart phone 500 always has enough electric quantity in the process of sound pick-up and sound release.

Example 2

A wireless external sound pick-up and play device for a mobile intelligent terminal is composed of a transmitting and receiving device and a handheld sound pick-up and play controller 700. Wherein, the structure of the transmitting and receiving device is basically the same as that of the embodiment 1; the hand-held pick-and-place sound controller 700 is constructed as shown in fig. 3, and is generally in the shape of a hand-held microphone having a conventional shroud and microphone housing 701; inside microphone shell 701, the top section is equipped with conventional pickup subassembly, and the middle section is equipped with circuit board 702, the battery 703 of having integrateed conventional pickup circuit and chip two, the bottom is equipped with earphone socket 704.

As shown in fig. 2, a low-power consumption wireless transceiver circuit a'2011, an audio codec circuit 2012, a pickup driver circuit 2013 and a playback driver circuit 2014 are disposed in the second chip 201; the pickup driving circuit 2013 is electrically connected with the conventional pickup circuit; the sound playing driving circuit is electrically connected with the earphone socket 702; the wireless transceiving circuit a'2011 and the audio codec circuit 2012 are electrically connected in the second chip 201 through a data transmission line and perform bidirectional signal transmission; the audio codec circuit 2012 is respectively electrically connected with the pickup driving circuit 2013 and the playback driving circuit 2014 in the second chip 201 through data transmission lines; the pickup driving circuit 2013 and the playback driving circuit 2014 are electrically connected in the second chip 201 through data transmission lines.

The conventional pickup assembly includes a voice diaphragm, a voice coil, a magnet, a soft iron core, a transformer, etc. (not shown in the figure). The earphone jack 704 is preferably a conventional 3.5 earphone jack for plugging a peripheral earphone 300.

The working principle of this embodiment is the same as that of embodiment 1.

Claims

1. The utility model provides a wireless external sound device that picks up puts for mobile intelligent terminal which characterized in that: it includes transmitting and receiving device and pick-and-place sound control device;

2. The sound pickup and playback apparatus according to claim 1, wherein: the physical plug is a Type-C plug and is used for connecting a Type-C interface of the mobile intelligent terminal.

3. The sound pickup and playback apparatus according to claim 1, wherein: the sound pick-up and playing control device comprises a control box internally provided with the chip II, the sound pick-up unit is an external microphone, and the playing unit is an external earphone, a loudspeaker or sound equipment with a power amplifier; the external pickup equipment physics socket and the playback equipment physics socket of setting up of control box, pickup equipment physics socket is pegged graft external microphone, the playback equipment physics socket is pegged graft external earphone, speaker or the sound equipment who takes the power amplifier.

4. The sound pickup and playback apparatus according to claim 1, wherein: the sound pick-up and playing control device comprises an integrated device, and the integrated device is used for integrating any more than two of the sound pick-up unit, the sound playing unit or the device provided with the second chip into the same shell.

5. The sound pickup and playback apparatus according to claim 1, wherein: the transmitting and receiving device is further provided with a charging socket for connecting an external power supply; meanwhile, the first chip is further provided with a charging module, a PD charging protocol circuit is arranged in the charging module, and the charging module is respectively and electrically connected with the physical plug and the charging socket.