CN211670947U

CN211670947U - Karaoke screen projection equipment

Info

Publication number: CN211670947U
Application number: CN202020608222.2U
Authority: CN
Inventors: 顾晓明
Original assignee: Shanghai Maultak Technology Development Co ltd
Current assignee: Shanghai Maultak Technology Development Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-10-13
Anticipated expiration: 2030-04-21

Abstract

The utility model relates to a screen equipment is thrown to karaoke, the input links to each other with existing mobile terminal, the output links to each other with TV and audio, screen equipment is thrown to karaoke includes the shell, the treater of installation in the shell, data transmission module, microphone receiving module, signal processing module, power module and microphone module and install video interface and audio interface on the shell, data transmission module, microphone receiving module, signal processing module, power module, video interface and audio interface link to each other with the treater respectively, microphone receiving module's input links to each other with microphone module. Compared with the prior art, the utility model has the advantages of realize that the wireless screen of throwing of karaoke resource, simple structure, with low costs, suitability are strong.

Description

Karaoke screen projection equipment

Technical Field

The utility model relates to a throw the screen equipment, especially relate to a screen equipment is thrown to karaoke.

Background

The "karaoke" is usually a method of playing lyrics with tempo cues on a television screen simultaneously with a pre-recorded musical accompaniment without the vocal of the leading person stored on a medium such as a video tape, and then singing the song with a microphone while watching the lyrics by the participants. Along with the improvement of living standard and the improvement of science and technology, karaoke is more and more popular and has various forms, and the karaoke from a karaoke bag house to a mobile phone karaoke is continuously developed.

At present, in some users with family karaoke requirements, because televisions are not updated, mobile karaoke cannot be directly projected on the televisions, users often need to replace the televisions, and the cost of the family karaoke is increased. For those households that do not want to change televisions, there is no device that can project karaoke on the television.

Chinese patent CN209982635U discloses a wireless screen projector coupled to a data source device and a display device, the wireless screen projector includes: the data transmission module is used for transmitting the data information displayed by the data source equipment to the display equipment; the microphone module is used for acquiring first sound information; and the camera module is used for collecting image information. The wireless screen projector in the patent realizes wireless screen projection of audio information and video information, but still does not realize screen projection of karaoke resources on the mobile terminal.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a screen equipment is thrown to karaoke that realizes the wireless screen of throwing of karaoke resource, simple structure, with low costs, suitability are strong in order to overcome the defect that above-mentioned prior art exists.

The purpose of the utility model can be realized through the following technical scheme:

a karaoke screen projection device is characterized in that an input end is connected with an existing mobile terminal, an output end is connected with a television and a sound, and the karaoke screen projection device comprises a shell, a processor, a data transmission module, a microphone receiving module, a signal processing module, a power supply module, a microphone module, a video interface and an audio interface, wherein the processor, the data transmission module, the microphone receiving module, the signal processing module, the power supply module and the microphone module are arranged in the shell; the data transmission module, the microphone receiving module, the signal processing module, the power supply module, the video interface and the audio interface are respectively connected with the processor; the input end of the microphone receiving module is connected with the microphone module.

Preferably, the processor is an RK3036 chip processor.

Preferably, the input end of the data transmission module is wirelessly connected with an existing mobile terminal.

Preferably, the data transmission module is a WIFI communication module.

Preferably, the microphone receiving module comprises a receiving unit and a control unit; one end of the receiving unit is wirelessly connected with the microphone module, and the other end of the receiving unit is connected with the control unit; the other end of the control unit is connected with the processor.

More preferably, the receiving unit is a KT0656M receiver.

More preferably, the control unit is an RK3036G chip.

Preferably, the signal processing module is an AP3500 DSP signal processing chip.

Preferably, the video interface is an HDMI video interface, a composite video interface, or a component video interface.

Preferably, the microphone module is a KT0646M wireless microphone.

Compared with the prior art, the utility model has the advantages of it is following:

the device has the advantages of simple structure and low cost: the utility model provides a throw screen equipment and only be suitable for treater, WIFI communication module, microphone receiving module, signal processing module, power and two interfaces and can realize throwing the screen to current karaoke resource, simple structure easily realizes.

Secondly, realizing wireless screen projection of karaoke resources: the utility model provides a throw screen equipment and carry out wireless connection with existing mobile terminal and wireless microphone, throw the screen with the karaoke resource on the existing mobile terminal to existing TV, realized throwing the screen to the wireless of current karaoke resource.

Thirdly, the applicability is strong: the utility model provides a throw screen equipment and lower to the requirement of throwing screen equipment such as TV, the user also need not to change current equipment such as TV or stereo set, can use through video connecting wire and audio line, and the suitability is stronger.

Drawings

Fig. 1 is a schematic structural view of a karaoke screen projection device of the present invention;

fig. 2 is a schematic structural diagram of a microphone module and a microphone receiving module according to the present invention;

fig. 3 is the structure diagram of the AP3500 DSP signal processing chip of the present invention.

The reference numbers in the figures indicate:

1. the mobile terminal comprises a shell, 2, a processor, 3, a data transmission module, 4, a microphone receiving module, 5, a signal processing module, 6, a power supply module, 7, a microphone module, 8, a video interface, 9, an audio interface, 10, a mobile terminal, 11, a television, 12 and a sound box.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

A karaoke screen projection device is structurally shown in fig. 1 and comprises a shell 1, a processor 2, a data transmission module 3, a microphone receiving module 4, a signal processing module 5, a power supply module 6, a microphone module 7, a video interface 8 and an audio interface 9. The processor 2, the data transmission module 3, the microphone receiving module 4, the signal processing module 5 and the power supply module 6 are all installed in the shell 1, and the video interface 8 and the audio interface 9 are all installed on the shell 1. The data transmission module 3, the microphone receiving module 4, the signal processing module 5, the power supply module 6, the video interface 8 and the audio interface 9 are respectively connected with the processor 2.

The input end of the data transmission module 3 is wirelessly connected with the existing mobile terminal 10. The microphone receiving module 4 is wirelessly connected to the microphone module 7.

The karaoke screen projection device is connected with an existing television 11 through a video interface 8 and is connected with an existing sound box 12 through an audio interface 9.

The processor 2 uses a Rui-core micro RK3036 chip processor, the processor adopts a dual-core Cortex-A7 architecture, the main frequency can reach 1.0GHz at most, and the processor supports 1080P H.265, H.264, VC-1, MPEG and VP8 Video Decoder, is compatible with streaming media formats of various protocols, and supports various screen projection interaction protocols, such as DLNA, Miracast, WiDi and other interconnection and interworking protocols.

The data transmission module 3 uses a WIFI communication module, and the existing mobile terminal 10 performs wireless data transmission with the screen projection device through WIFI.

The microphone receiving module 4 and the microphone module 7 are schematically shown in fig. 2, the microphone receiving module 4 includes a receiving unit 401 and a control unit 402, one end of the receiving unit 401 is wirelessly connected to the microphone module 7, the other end of the receiving unit 401 is connected to the control unit 402, and the other end of the control unit 402 is connected to the processor 2. The microphone module 7 adopts a KT0646M wireless microphone; the receiving unit 401 adopts a KT0656M receiver, the KT0656M optimizes an audio compressor, and the KT064x series products can effectively optimize tail sound, distortion and noise floor; the control unit 402 uses RK3036G to master the chip.

The signal processing module 5 adopts an AP3500 DSP signal processing chip, the AP3500 is an enhanced programmable 32-bit Audio DSP with built-In high-precision 24-bit Audio Codec, 16KBytesOTP, dual Mic In interface, and 1MBytes data RAM, and the circuit structure thereof is shown In fig. 3, and has the following functions:

1. professional karaoke effectors (REVERB, ECHO).

2. The howling prevention function is realized through frequency shift and phase shift.

3. 5 sections EQ and 2 sections high-low cut.

4. A segment DRC prevents distortion.

5. Pitch alignment and transposition functions.

The video interface 8 in this embodiment is an HDMI video interface, a composite video interface, or a component video interface.

The specific use method of the karaoke screen projection device in the embodiment is as follows:

the mobile terminal 10, the screen projection device and the wireless microphone are placed in the same network segment, and the screen projection device is connected with the television through a video connecting line and is connected with the sound box through an audio line. The karaoke application software on the mobile terminal is opened, the mobile terminal 10 wirelessly transmits audio and video signals to the processor 2 through the data transmission module 3, the wireless microphone can adjust the volume and reverberation of input human voice through keys arranged on the wireless microphone, and the audio and video signals are wirelessly transmitted to the microphone receiving module 4 after being processed. The processor 2 transmits the audio signal processed by the signal processing module 5 to the sound box 12, and transmits the video signal to the television 11, so that the karaoke screen on the mobile terminal is realized.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A karaoke screen projection device is characterized in that the karaoke screen projection device comprises a shell (1), a processor (2) arranged in the shell (1), a data transmission module (3), a microphone receiving module (4), a signal processing module (5), a power supply module (6), a microphone module (7), a video interface (8) and an audio interface (9) which are arranged on the shell (1); the data transmission module (3), the microphone receiving module (4), the signal processing module (5), the power supply module (6), the video interface (8) and the audio interface (9) are respectively connected with the processor (2); the input end of the microphone receiving module (4) is connected with the microphone module (7).

2. A karaoke screen projection apparatus as claimed in claim 1, characterized in that said processor (2) is a RK3036 chip processor.

3. A karaoke screen-projection device according to claim 1, characterized in that the input of the data transmission module (3) is wirelessly connected to an existing mobile terminal (10).

4. The karaoke screen-projection device as claimed in claim 1, wherein the data transmission module (3) is a WIFI communication module.

5. A karaoke screen-projection device according to claim 1, characterized in that said microphone receiving module (4) comprises a receiving unit (401) and a control unit (402); one end of the receiving unit (401) is wirelessly connected with the microphone module (7), and the other end of the receiving unit is connected with the control unit (402); the other end of the control unit (402) is connected with the processor (2).

6. A Karaoke screen-projection device as claimed in claim 5, characterized in that said receiving unit (401) is a KT0656M receiver.

7. A Karaoke screen projection device as claimed in claim 5, characterized in that said control unit (402) is RK3036G chip.

8. The karaoke screen projection device as claimed in claim 1, wherein said signal processing module (5) is an AP3500 DSP signal processing chip.

9. The karaoke screen-casting device according to claim 1, wherein the video interface (8) is an HDMI video interface, a composite video interface or a component video interface.

10. A karaoke screen-projection device as claimed in claim 1, characterized in that said microphone module (7) is a KT0646M wireless microphone.