CN211089917U

CN211089917U - Portable equalizer ear amplifier

Info

Publication number: CN211089917U
Application number: CN202020081617.1U
Authority: CN
Inventors: 杨迪
Original assignee: Zhongchuang Mei Tianjin Technology Development Co ltd
Current assignee: Zhongchuang Mei Tianjin Technology Development Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-07-24
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses a portable equalizer ear is put, a serial communication port, including casing, audio input module is used for receiving audio frequency analog signal or audio frequency digital signal that intelligent terminal sent via apple data interface or tall and erect data interface, audio coding and decoding chip are used for decoding audio frequency digital signal and control, output analog signal, the equalizer regulator is used for carrying out high bass regulation back output to the audio frequency analog signal after the audio coding and decoding chip decodes, put interface circuit outward for output audio frequency analog signal, battery module are used for audio coding and decoding chip and equalizer regulator power supply, audio input module includes L inghtning and connects, Type-C connects, the utility model discloses compatible tall and erect cell-phone Type-C joint, apple joint, 3.5 audio frequency head are put to plug and just can be used, have expanded the use scene, have made things convenient for the ear to put and have matchd different kinds of cell-phones.

Description

Portable equalizer ear amplifier

Technical Field

The utility model relates to an equipment field is put to the ear, concretely relates to portable balanced device ear is put.

Background

With the development of digital electronic technology, people widely use various digital electronic products in entertainment life, including portable music players, such as CD players, MP3, MP4, and the like. When the music player is used, a wired earphone is mostly used for listening to music, and because the amplitude of each frequency band of an audio signal of the conventional portable music player is fixed, namely the output mode of the audio signal is fixed, the sound heard by a user from the earphone is the original audio signal output by the portable music player.

However, users often have their own favorite music playing modes, and the conventional portable music players cannot adjust the amplitude of each frequency band of the audio signal according to the favorite of the users, so that the music mode output by the earphone is monotonous. For example, some users prefer music with a higher specific gravity, such as music played in rock mode, while other users prefer music with a higher specific gravity, and some portable music players or earphones cannot be adjusted according to the user's preference.

The utility model discloses an application number 201420425749.6's utility model discloses a take digital audio decoding general earphone of USB interface, including audio input interface, master control circuit and loudspeaker, audio input interface is the USB interface, the USB interface is used for absorbing digital audio signal from audio playback terminal, master control circuit includes digital signal processing circuit, digital analog conversion circuit and power amplifier circuit, digital signal processing circuit links to each other with audio input interface, digital analog conversion circuit links to each other with digital signal processing circuit, power amplifier circuit links to each other with digital analog conversion circuit, and power amplifier circuit's output links to each other with loudspeaker, the utility model discloses add a USB interface and replace original 3.5 mm's earphone plug, directly connect audio playback terminal through the USB line and acquire audio data, audio transmission speed is fast, and widen because of the sound field, make the sound dynamic effect of broadcast better, the stream is dynamic strong, this USB interface can satisfy to connect different USB lines and use, such as apple USB line and android USB line, the utility model can also work as portable power source and use, powerful, but the problem that digital audio decoding general earphone exists is comparatively single in the interface, the class of intelligent cell-phone on the market, this Type is L, this audio interface is unable-terminal transmission, this kind of high-end interface, 36ing-L can's transmission.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can put with L inghtning interface, Type-C interface connection's portable equalizer ear.

The utility model provides a technical scheme that above-mentioned problem adopted is:

the portable equalizer ear amplifier is characterized by comprising a shell, an audio input module, an audio codec chip, an equalizer regulator and an external amplifier interface circuit, wherein the audio input module is used for receiving audio analog signals or audio digital signals sent by an intelligent terminal through an apple data interface or an android data interface, the audio codec chip is used for decoding the audio digital signals and controlling and outputting the analog signals, the equalizer regulator is used for regulating high and low tones of the audio analog signals decoded by the audio codec chip and outputting the audio analog signals, the external amplifier interface circuit is used for outputting the audio analog signals, the battery module is used for supplying power to the audio codec chip and the equalizer regulator, the audio input module comprises a L inghting connector and a Type-C connector, the connection modes are that the pin 3 of the L, L inghting connector, the pin 6 of the Type-C connector, the pin 7 of the Type-C connector is connected to the digital signal input pin of the audio codec chip, the Type-C connector is connected to the analog signal input pin 3 of the apple data connector, the Type-C connector, the pin 6 of the Type-C connector, the Type-C connector is connected to the analog signal input pin of the audio codec chip, the analog signal input pin of the audio codec chip is connected to the audio codec chip, the analog signal input pin of the audio codec chip, the analog terminal of the analog terminal, the analog terminal is connected to the analog terminal, and the analog terminal.

Further, as preferred, the audio input module further includes a 3.5mm headphone interface, and the left and right channel signals of the headphone interface are respectively connected to the 2-channel analog signal input pins of the equalizer adjuster.

Further, as preferred, the audio codec chip is connected with a bluetooth communication module, and the bluetooth communication module is used for receiving bluetooth communication signals from external intelligent equipment.

Further, preferably, the audio codec chip is connected to a microphone module, and the microphone module is configured to receive an audio analog signal recorded by a microphone.

Compared with the prior art, the utility model, have following advantage and effect: the utility model discloses compatible android mobile phone Type-C is put to portable equalizer ear connects, the apple connects, 3.5 audio head, inserts just can use, has expanded the use scene, has made things convenient for the ear to put and has matchd different types of cell-phones.

Drawings

Fig. 1 is a schematic structural diagram of a portable equalizer ear-drop according to an embodiment of the present invention.

Fig. 2 is a pin function diagram of a conventional apple L INGHTNING connector.

FIG. 3 is a pin function schematic of an existing android type joint.

Fig. 4 is a pin diagram of an audio codec chip according to an embodiment of the present invention.

Fig. 5 is a circuit diagram of an equalizer adjuster according to an embodiment of the present invention.

Fig. 6 is a circuit diagram of a microphone module according to an embodiment of the present invention.

The figure numbers are shell 1, L inghting connector 2 and Type-C connector 3

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Referring to fig. 1-6, the portable equalizer ear-amp of the embodiment includes a housing 1, an audio input module, an audio codec chip, an equalizer regulator, an external interface circuit, a battery module, and a battery module, wherein the audio input module is used for receiving an audio analog signal or an audio digital signal sent by an intelligent terminal via an apple data interface or an android data interface, the audio codec chip is used for decoding the audio digital signal and controlling and outputting the analog signal, the equalizer regulator is used for outputting the audio analog signal after performing high-low tone regulation on the audio analog signal decoded by the audio codec chip, the external interface circuit is used for outputting the audio analog signal, and the battery module is used for supplying power to the audio codec chip and the equalizer regulator, the audio input module includes L inghtning connector 1 and a Type-C connector 2, and is connected to the digital signal input pin of the audio codec chip through a pin 2 of an L inghtning connector, a pin 3 of an inghtning connector, a pin 6 of a Type-C connector, a pin 7 of a Type-C connector, and a pin 7 of the audio codec connector are connected to the digital signal input pin of the audio codec chip, so as to input pin of the audio codec chip, the audio decoding chip is input pin of the audio decoding chip, the audio decoding chip is connected to a pin of an audio decoding chip, a pin of an audio decoding device, a pin of an audio decoder, a pin of a pin 3, a pin of an audio connector, a pin of a pin.

For convenience of understanding, the pin functions of the L inghting connector and the Type-C connector are shown in fig. 2, which is a schematic pin function diagram of an existing apple L INGHTNING connector, wherein pins 1, SA and 5, SB are interfaces for supplying power to external equipment by a mobile phone, pin 2, pin D + and pin 3, D-, are data transmission interfaces, pin 4, Vbus charging input interfaces, pin 6, pin 7, a signal identification port for identifying the front and back sides of a plug-in head and whether external power supply is needed or not, and communication interfaces, pin 8 is a ground wire.

The audio input module comprises a 3.5mm earphone interface, and left and right sound channel signals of the earphone interface are respectively connected to 2-path analog signal input pins of the equalizer adjuster (as shown in fig. 5).

The audio coding and decoding chip is connected with a microphone module, and the microphone module is used for receiving audio analog signals recorded by a microphone. The circuit structure of the microphone module is shown in fig. 6. The pin connection of the audio codec chip is as shown in fig. 4, the circuit structure of the equalizer regulator is as shown in fig. 5, the structures of the audio codec chip, the equalizer regulator and the microphone module are used more on the bluetooth sound box in the market, and the technical personnel in the industry can easily understand through the circuit structure diagram, so the structures are not described again. The audio encoding and decoding chip is connected with a Bluetooth communication module, and the Bluetooth communication module is used for receiving Bluetooth communication signals from external intelligent equipment.

The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The portable equalizer ear amplifier is characterized by comprising a shell, an audio input module, an audio codec chip, an equalizer regulator and an external amplifier interface circuit, wherein the audio input module is used for receiving audio analog signals or audio digital signals sent by an intelligent terminal through an apple data interface or an android data interface, the audio codec chip is used for decoding the audio digital signals and controlling and outputting the analog signals, the equalizer regulator is used for regulating high and low tones of the audio analog signals decoded by the audio codec chip and outputting the audio analog signals, the external amplifier interface circuit is used for outputting the audio analog signals, the battery module is used for supplying power to the audio codec chip and the equalizer regulator, the audio input module comprises a L inghting connector and a Type-C connector, the connection modes are that the pin 3 of the L, L inghting connector, the pin 6 of the Type-C connector, the pin 7 of the Type-C connector is connected to the digital signal input pin of the audio codec chip, the Type-C connector is connected to the analog signal input pin 3 of the apple data connector, the Type-C connector, the pin 6 of the Type-C connector, the Type-C connector is connected to the analog signal input pin of the audio codec chip, the analog signal input pin of the audio codec chip is connected to the audio codec chip, the analog signal input pin of the audio codec chip, the analog terminal of the analog terminal, the analog terminal is connected to the analog terminal, and the analog terminal.

2. The portable equalizer earpiece of claim 1, wherein: the audio input module further comprises a 3.5mm earphone interface, and left and right sound channel signals of the earphone interface are respectively connected to 2-path analog signal input pins of the equalizer regulator.

3. The portable equalizer earpiece of claim 1, wherein: the audio encoding and decoding chip is connected with a Bluetooth communication module, and the Bluetooth communication module is used for receiving Bluetooth communication signals from external intelligent equipment.

4. The portable equalizer earpiece of claim 1, wherein: the audio coding and decoding chip is connected with a microphone module, and the microphone module is used for receiving audio analog signals recorded by a microphone.