Karaoke remote controller

Abstract

The utility model discloses a karaoke remote controller, which comprises key switches arranged on the surface of a shell and used for generating key signals after being pressed. And the communication module is in signal connection with an external television and outputs a control signal to the external television. And the voice acquisition karaoke module is used for acquiring an audio signal. The main control unit can receive and process the key signal and the audio signal and then send the key signal and the audio signal to an external television through the communication module so as to control the external television and transmit audio. The remote controller has an infrared remote control function and can be matched with the main control unit to realize an infrared learning function, so that the remote controller can learn control signals of other remote controllers. The wireless remote controller has a 2.4 G or BLE wireless communication function, not only can be used as a control signal of the remote controller, but also can be used for transmitting voice information, so that low-delay singing experience is realized. A professional capacitance microphone core is selected for sound pickup of the remote controller, high and low frequency sounds are effectively considered, the defect that a traditional voice remote controller adopts a silicon microphone for sound pickup and lacks low frequency is overcome, and the requirement for karaoke experience is met.

Description

Technical Field

[0001] The utility model belongs to the field of karaoke equipment, in particular to a karaoke remote controller. Background Art

[0002] With the continuous development of TV and other related technologies, smart TVs now have voice recognition and are equipped with related karaoke applications, allowing users to sing karaoke at home. However, the current technology also has many limitations: for example, when adjusting the volume or switching songs, you still need to use a traditional remote control; when singing karaoke, you need to use a dedicated wireless or wired microphone, which provides a poor user experience.

[0003] There are some remote controllers with karaoke functions on the market, but most of them are developed based on voice recognition remote controllers, and either the remote control experience is poor or the karaoke effect is poor. There are also some karaoke remote controllers that have the advantages of both, but they simply combine the remote control and microphone into one, which makes them expensive and not conducive to large-scale popularization.

[0004] In the existing technology, "A TV remote control integrating voice control and karaoke functions (201921260442.4)" adds audio compensation circuits, karaoke wireless transmission modules, etc. to enable the remote control to have the effect of karaoke; the cost is greatly increased compared with ordinary remote controls and wireless microphones. Its product form is to combine the remote control and the wireless microphone in a set of structural parts, which not only increases the difficulty of structural development, but also greatly increases the difficulty of software development.

[0005] The prior art, the patent "Multi-function Karaoke Remote Control (201920384046.6)", combines Karaoke and remote control, but the remote control part can only be connected and controlled with 2.4G devices, and is not compatible with TVs or other wireless devices without 2.4G function. Utility Model Content

[0006] The technical purpose of the utility model is to provide a karaoke remote controller to solve the problems of high cost and poor use effect of the existing remote controller for karaoke.

[0007] To solve the above problems, the technical solution of the utility model is:

[0008] A karaoke remote controller comprises: a housing and a remote control circuit arranged in the housing;

[0009] The remote control circuit includes a main control unit, a key module, a karaoke module and a communication module;

[0010] The key module includes a plurality of key switches arranged on the surface of the housing and used to generate corresponding key signals after being pressed;

[0011] The communication module is connected to the external television signal and is used to output the corresponding signal to the external television;

[0012] The karaoke module is used to collect human voice and optimize the sound quality to obtain audio signals;

[0013] The main control unit is respectively connected to the button module, karaoke module and communication module signals, and is used to receive button signals and send them to the external TV by the communication module after signal processing to control the external TV. It is also used to receive audio signals and send them to the external TV by the communication module after signal processing to realize audio transmission.

[0014] The communication module includes an infrared transmitting tube, a 2.4G antenna and related peripheral circuits; the infrared transmitting tube is used to cooperate with the main control unit to realize infrared remote control of the external TV;

[0015] The 2.4G antenna is used to cooperate with the main control unit to transmit the processed key signals and audio signals to the external TV.

[0016] Specifically, the karaoke module includes a capacitor microphone core, a power supply circuit and a filter circuit. The capacitor microphone core is used to collect human voices, and the filter circuit is used to optimize the sound quality of the collected human voices to obtain an audio signal.

[0017] Among them, the button module includes power on and off buttons, volume adjustment buttons, direction control buttons, song change buttons, pause buttons and mute buttons.

[0018] Further preferably, an indicator light is provided, which is arranged on the surface of the shell and is connected to the main control unit signal to remind the button module that it can be pressed and triggered normally.

[0019] Further preferably, a charging and upgrading module is also provided, including a Type-c interface unit, a charging unit and a battery unit;

[0020] One end of the Type-c interface unit is connected to a host computer or an external power supply, and the other end of the Type-c interface unit is electrically connected to a charging unit and a main control unit respectively. The charging unit is electrically connected to the main control unit via a battery unit.

[0021] Due to the adoption of the above technical solution, the utility model has the following advantages and positive effects compared with the prior art:

[0022] Through an MCU, the key module, communication module, and karaoke module are integrated together, which greatly optimizes the circuit design. Compared with the traditional U-segment wireless microphone karaoke solution, it uses fewer U-segment transmitter and receiver chips, which greatly saves costs and simplifies hardware design; the wireless microphone part does not need a specially designed receiver. It only needs to use the 2.4G function or BLE function on the TV end, and with a dedicated communication solution, it can achieve a low-latency, high-quality karaoke experience.

[0023] Because the remote control has an infrared transmitting tube, it has the functions of a traditional remote control, and can cooperate with the main control unit to realize the infrared learning function, so that it has the ability to learn control signals from other remote controls.

[0024] The utility model has 2.4G or BLE wireless communication function. When used with a specific TV, the 2.4G communication protocol not only serves as a remote control signal, but also transmits voice information. Combined with the corresponding communication protocol and signal processing, a low-latency singing experience can be achieved.

[0025] A professional condenser microphone core is used in the sound pickup of the remote control, which takes into account both high and low frequencies in the pickup of human voices, improving the shortcoming of the traditional remote control that uses silicon microphones to pick up sound, which lacks low frequencies. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those skilled in the art. The accompanying drawings are only for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention.

[0027] Figure 1 This is a structural framework diagram of a karaoke remote controller of the utility model;

[0028] Figure 2 The utility model is an external schematic diagram of a karaoke remote controller. DETAILED DESCRIPTION

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0030] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0031] The advantages and features of the present invention will be more clearly understood from the following description and claims.

[0032] Example

[0033] See also Figure 1 and Figure 2 This embodiment provides a karaoke remote controller, which has a shell on the outside and a remote control circuit inside the shell. The remote control circuit can be divided into a main control unit, a button module, a karaoke module, a communication module, and a charging and upgrading module according to its function.

[0034] like Figure 2 As shown, the key module includes several key switches, which are arranged on the surface of the housing in sequence. After being pressed by the user, corresponding key signals are generated and sent to the main control unit. Specifically, the key module is provided with traditional power on and off keys, volume adjustment keys and direction control keys. In addition, it also has a song switching key (previous or next song) and a pause key specially designed for the karaoke scene, as well as a one-button mute key, which is convenient for users to choose freely. And in order to achieve compatibility, a combination key is designed for infrared remote control learning and other operations. In addition, a voice key and a karaoke key are also designed, in which the voice key performs voice recognition operation to improve the convenience of remote control use, but the voice recognition key is only in the pressed state, the MCU will open the audio path to avoid accidental touch and cause abnormal sound on the TV end. At the same time, the karaoke key has the function of opening karaoke with one key, which is convenient for quickly opening the karaoke application and improving the user experience. After entering the karaoke application, the remote control can control the sound effects and reverberation designed for the karaoke scene.

[0035] See also Figure 1 In this embodiment, the communication module is connected to the external TV signal and is used to output the corresponding signal to the external TV. Specifically, the communication module includes an infrared transmitting tube and a 2.4G antenna and related circuits (filter circuit, impedance matching circuit, etc.).

[0036] Since the main function of this embodiment is still remote control, an infrared emitting tube is provided, and its specific combination key cooperates with the main control unit to realize normal infrared remote control of the TV. In addition, this embodiment also has an infrared remote control learning function, which can learn the control signals of other remote controllers to realize diversified control, such as fan remote controller, air conditioner remote controller, etc.

[0037] The 2.4G antenna can also cooperate with the main control unit to transmit the processed key signals to the TV, thereby supporting a seamless connection with the TV. More importantly, it can also transmit audio signals to the TV to achieve the karaoke function. Compared with the traditional U-band communication solution, the 2.4G communication can reduce the antenna area, which is more conducive to product miniaturization and has strong compatibility. At the same time, it can cooperate with the corresponding communication protocol solution and sound effect processing solution to achieve a low-latency and beautiful singing experience.

[0038] The karaoke module uses a capacitor microphone core and related circuits (power supply circuit and filter circuit) to achieve voice collection, such as Figure 2As shown, a corresponding audio collection port is provided on the top of this embodiment. The condenser microphone core can effectively take into account both high and low frequency signals. When matched with a special tuning solution, the sound pickup effect of the condenser microphone core can be maximized to improve the karaoke effect.

[0039] See also Figure 1 In this embodiment, the main control unit adopts a control MCU, which is respectively connected to the key module, the karaoke module and the communication module signal. It can receive the key signal and send it to the TV through the communication module after processing by the MCU to control the external TV. It can also receive the audio signal and send it to the external TV through the communication module after processing to realize audio transmission.

[0040] See also Figure 1 In this embodiment, the charging and upgrading module includes a Type-c interface, a charging unit and a battery unit. In terms of circuit connection, one end of the Type-c interface is connected to the host computer or the external power supply, and the other end of the Type-c interface is electrically connected to the charging unit and the main control unit respectively, and the charging unit is electrically connected to the main control unit via the battery unit. Therefore, in the charging state, the external power supply is connected to the Type-c interface, and the current flows into the battery unit after passing through the charging unit, thereby charging the battery unit. The battery unit thus means to provide power support for this embodiment. Compared with the traditional remote control using dry batteries, the convenience is greatly improved. At the same time, the Type-c interface also has the upgrade function of the MCU, which supports users to perform DIY upgrades and improves the playability of the remote control. In the upgrade state, the host computer upgrade signal directly enters the main control unit from the Type-c interface.

[0041] Preferably, see Figure 1 In this embodiment, an indicator light is also provided on one side of the shell where the button is provided, which is also connected to the main control unit signal to remind the button module that the button can be pressed and triggered normally.

[0042] Since the present embodiment can use both infrared remote control and 2.4G or BLE communication as the control transmission of the present embodiment, 2.4G or BLE communication is preferably used as the main communication means. And the infrared learning function can be entered by long pressing the switch button of the present embodiment. Now a brief description of the switching of the communication means of the present embodiment is given: after turning on the power, you can press the switch button to change the communication means. If you do not press it, the 2.4G signal will continue to be used for scanning, and automatic pairing will be achieved after receiving the response signal from the TV. If it is pressed, it will switch to infrared control. If the switch button is pressed for 3S, the infrared learning function will be entered.

[0043] The above is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the protection scope of the present invention.

Claims

1. A karaoke remote control, characterized in that: include: A housing and a remote control circuit disposed in the housing; The remote control circuit includes a main control unit, a key module, a karaoke module and a communication module; The key module includes a plurality of key switches, which are arranged on the surface of the housing and are used to generate corresponding key signals after being pressed; The communication module is connected to the external television signal and is used to output the corresponding signal to the external television; The karaoke module is used to collect human voice and optimize sound quality to obtain an audio signal; The main control unit is respectively connected to the key module, the karaoke module and the communication module for signal transmission, and is used to receive the key signal and send it to the external TV by the communication module after signal processing to control the external TV, and is also used to receive the audio signal and send it to the external TV by the communication module after signal processing to realize audio transmission; The communication module includes an infrared transmitting tube and a 2.4G antenna; the infrared transmitting tube is used to cooperate with the main control unit to realize infrared remote control of an external TV; The 2.4G antenna is used to cooperate with the main control unit to transmit the processed key signal and the audio signal to the external TV; The karaoke module includes a capacitive microphone core, a power supply circuit and a filter circuit. The capacitive microphone core is used to collect human voices, and the filter circuit is used to optimize the sound quality of the collected human voices to obtain an audio signal.

2. The karaoke remote controller according to claim 1, characterized in that: The button module includes a power on / off button, a volume adjustment button, a direction control button, a song switching button, a pause button and a mute button.

3. The karaoke remote controller according to claim 1, characterized in that: An indicator light is provided, which is arranged on the surface of the shell and is connected to the main control unit signal to remind the key module that it can be pressed and triggered normally.

4. The karaoke remote controller according to claim 1, characterized in that: There is also a charging and upgrading module, including a Type-c interface unit, a charging unit and a battery unit; One end of the Type-c interface unit is connected to a host computer or an external power supply, and the other end of the Type-c interface unit is electrically connected to the charging unit and the main control unit respectively, and the charging unit is electrically connected to the main control unit via the battery unit.

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