CN111092343A - Earphone adapter - Google Patents

Abstract

The application provides an earphone adapter includes: the analog audio connector is used for being connected with an analog audio interface of the electronic equipment; a digital audio connector for connecting with a headset having a digital audio interface; the analog-to-digital conversion circuit is used for converting the analog signal received by the analog audio connector into a digital signal and transmitting the digital signal to the digital audio connector; and the battery unit is used for supplying power to the analog-to-digital conversion circuit and the earphone connected with the digital audio interface. The application provides a be equipped with in the earphone adapter and convert analog audio signal into digital audio signal's analog-to-digital conversion circuit to and be used for the battery unit for analog-to-digital conversion circuit and earphone power supply, consequently make the user have digital audio to connect the condition of earphone, also can be connected earphone and the electronic equipment that has traditional analog audio interface, use the earphone.

Description

Earphone adapter

Technical Field

The application relates to the technical field of electronic products, in particular to an earphone adapter.

Background

At present, various external device interfaces of electronic devices such as smart phones are gradually integrated, that is, originally, connection interfaces which are independently arranged are integrated into one digital interface; for example, charging, digital file transfer, and audio signal transfer interfaces of some smart phones have been integrated.

Correspondingly, the user needs to purchase the earphone or the adapter matched with the integrated interface, and then the user can use the earphone. For some users who have purchased the aforementioned integrated interface headsets, the aforementioned headsets can only fit devices with corresponding digital interfaces and cannot match traditional analog audio interfaces.

Disclosure of Invention

The application provides an earphone adapter to solve the problem that the background art mentioned.

The application provides an earphone adapter includes:

the analog audio connector is used for being connected with an analog audio interface of the electronic equipment;

the digital audio connector is used for being connected with an earphone with a digital audio interface;

the analog-to-digital conversion circuit is used for converting the analog signal received by the analog audio connector into a digital signal and transmitting the digital signal to the digital audio connector;

and the battery unit is used for supplying power to the analog-to-digital conversion circuit and the earphone connected with the digital audio interface.

Optionally, the digital audio connector includes a first digital audio connector and a second digital audio connector with different interface standards;

the analog-to-digital conversion circuit comprises a first conversion circuit and a second conversion circuit; the first conversion circuit is used for converting an analog signal into a first digital signal matched with the first digital audio connector; the second conversion circuit is used for converting the analog signal into a second digital signal matched with the second digital audio connector.

Optionally, the first digital audio connector is a Lighting connector, and the second digital audio connector is a TypeC connector.

Optionally, the earphone adapter includes: and the detection control circuit is used for controlling the analog-to-digital conversion circuit to work under the condition that the analog audio connector is detected to be connected with the electronic equipment and the digital audio connector is detected to be connected with the earphone.

Optionally, the detection control circuit is further configured to verify whether the earphone inserted into the digital audio connector is matched with the earphone adapter.

Optionally, the battery unit is a rechargeable battery;

the earphone adapter further comprises:

and the charging circuit is used for controlling the charging of the battery unit under the condition that the digital audio connector is connected with a power supply.

Optionally, the analog audio interface is a coaxial audio plug.

The application provides an earphone adapter is equipped with the analog-to-digital conversion circuit who converts analog audio signal into digital audio signal to and be used for the battery unit for analog-to-digital conversion circuit and earphone power supply, consequently make the user have digital audio to connect under the condition of earphone, also can be connected earphone and the electronic equipment that has traditional analog audio interface, use the earphone.

Drawings

Fig. 1 is an external view of an adaptor of a headset according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of an earphone adapter according to an embodiment of the present application;

wherein: 11-analog audio connector, 12-connecting wire, 13-digital audio connector, 131-first digital audio connector, 132-second digital audio connector, 14-analog-to-digital conversion circuit, 15-battery unit, 16-detection control circuit and 17-charging control circuit.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings.

Fig. 1 is an appearance schematic diagram of an earphone adapter provided in an embodiment of the present application, and fig. 2 is a structural schematic diagram of the earphone adapter provided in the embodiment of the present application. As shown in fig. 1, from the appearance, the earphone adapter provided by the embodiment of the present application includes an analog audio connector 11, a connection line 12, and a digital audio connector 13.

As shown in fig. 2, the earphone adapter provided by the embodiment of the present application further includes an analog-to-digital conversion circuit 14 and a battery unit 15, where the analog-to-digital conversion circuit 14 and the battery unit 15 are installed at the connection end of the connection line 12 and the digital audio connector 13, and are covered by an insulating layer covering the connection line 12.

Referring to fig. 2, in the earphone adapter provided in the embodiment of the present application, the analog-to-digital conversion circuit 14 is connected to both the analog audio connector 11 and the digital audio connector 13; the analog audio connector 11 is used for connecting with an analog audio interface of the electronic device and receiving an analog signal transmitted by the electronic device; the electronic device refers to a device capable of generating an audio analog signal, such as a computer or a mobile phone; the digital audio connector 13 is used for connecting with an earphone with a digital audio interface and transmitting a digital audio signal to the earphone; the analog-to-digital conversion circuit 14 is configured to convert the analog signal received by the analog audio connector 11 into a digital audio signal, and transmit the digital audio signal to the digital audio connector 13; and the battery unit 15 supplies power to the analog-to-digital conversion circuit 14 and the earphone connected with the digital audio interface.

Because the conventional analog audio interface only has a function of transmitting an analog signal and cannot serve as a power supply for driving the analog-to-digital conversion circuit 14 to work, the earphone adapter provided by the embodiment of the application is specially provided with the battery unit 15 for supplying power to the analog-to-digital conversion circuit 14; meanwhile, after the earphone with the digital audio interface receives the digital audio signal, the digital audio signal needs to be converted into an analog signal for driving the speaker to work through an internal digital-to-analog conversion circuit, and the digital-to-analog conversion circuit also needs to supply power, so the battery unit 15 is also connected with the digital audio interface and used for supplying power to the earphone.

By adopting the earphone adapter provided by the embodiment of the application, even if a user only has the earphone with a digital audio interface, under the condition of adopting the earphone adapter, the earphone can be connected with the electronic equipment with the traditional analog audio interface and can be used.

With continued reference to fig. 2, in the embodiment of the present application, the digital audio connector 13 includes a first digital audio connector 131 and a second digital audio connector 132, and the interface standards of the first digital audio connector 131 and the second digital audio connector 132 are different; correspondingly, the analog-to-digital conversion circuit 14 includes a first conversion circuit for converting the analog signal into a first digital signal matched with the first digital audio connector 131 and a second conversion circuit for converting the analog signal into a second digital signal matched with the second digital audio connector 132.

As can be known from the description of the previous section, the earphone adapter provided in the embodiment of the present application can be connected to earphones with different interface types. In a specific application, because most of the digital earphones which have been applied in the current industry standard are Lighting interface earphones matched with the iOS system or type c interface earphones matched with the Android system, the first digital audio connector 131 can be set as a Lighting connector, and the second digital audio connector 132 is set as a type c connector.

Of course, in other embodiments, the type of the interface of the digital audio connector 13 may be one or more of other numbers, and the number of the digital audio connector 13 is not limited to the Lighting connector or the TypeC connector, but may be other types of connectors.

With continued reference to fig. 2, the earphone adapter provided in the embodiment of the present application may further include a detection control circuit 16; the detection control circuit 16 is used for detecting whether the aforementioned analog audio connector 11 is connected with the electronic device and detecting whether the aforementioned digital audio connector 13 is connected with the earphone, and controlling the analog-digital conversion circuit 14 to work under the condition that the analog audio connector 11 is connected with the electronic device and the digital audio connector 13 is connected with the earphone.

In practical application, the analog-to-digital conversion circuit 14 in the earphone adapter actually plays a role only when the analog audio connector 11 and the digital audio connector 13 are connected with corresponding external components; because the earphone adapter is provided with the battery unit 15 to supply power for the analog-to-digital conversion circuit 14, in order to improve the effective utilization rate of the electric quantity in the battery unit 15, the detection control circuit 16 is used for detecting the work of the analog-to-digital conversion circuit 14 under the condition that the corresponding connector is connected with the external equipment, so that the waste of the electric quantity of the battery unit 15 can be avoided, and the service time of the battery unit 15 is prolonged.

With reference to fig. 2, in the earphone adapter provided in the embodiment of the present application, the detection control circuit 16 is further configured to verify whether an earphone inserted into the digital audio connector 13 is matched with the earphone adapter; in some cases, although there are components plugged into the digital audio jack 13, the components are not headphones in fact, or they require authentication of the security of the headphone adapter to function.

For example, in some applications, although the inserted component has an interface matching the digital audio connector 13, the aforementioned interface may be an interface for data transmission, and the headphone adapter may not be an interface for data transmission, in which case the detection control circuit 16 controls whether the analog-to-digital conversion circuit 14 operates by verifying whether the component inserted into the digital audio connector 13 is a headphone, that is, whether the component is authenticated.

For another example, in some other applications, the earphone is an application-specific earphone, and only the authenticated other component can be matched with the earphone, and the detection control circuit 16 can be used to send authentication information to the earphone to confirm that the earphone adapter is authenticated and can be matched with the earphone.

In the earphone adapter according to the embodiment of the present application, the battery unit 15 is a rechargeable battery, and preferably a battery having high energy density, such as a lithium battery. In order to charge the battery unit 15, the earphone adapter further comprises a charging control circuit 17, wherein the charging control circuit 17 is connected with the digital audio connector 13 and controls the battery unit 15 to be charged when the digital audio connector 13 is connected with a power supply. In other embodiments, the battery unit 15 may also be a replaceable disposable battery, or a removable rechargeable battery.

In the embodiment of the application, the analog audio interface of the earphone adapter is a coaxial audio plug; in particular reference, the coaxial audio plug is preferably a 3.5mm size coaxial audio plug. In other embodiments, the analog audio plug may also be other types of audio plugs, and the application is not limited thereto.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the invention. For example, the above features may be interchanged with other features disclosed in this application, but not limited to those having similar functions.

Claims (7)

1. An earphone adapter, comprising:

the analog audio connector is used for being connected with an analog audio interface of the electronic equipment;

the digital audio connector is used for being connected with an earphone with a digital audio interface;

the analog-to-digital conversion circuit is used for converting the analog signal received by the analog audio connector into a digital signal and transmitting the digital signal to the digital audio connector;

and the battery unit is used for supplying power to the analog-to-digital conversion circuit and the earphone connected with the digital audio interface.

2. The headset adapter of claim 1, wherein:

the digital audio connector comprises a first digital audio connector and a second digital audio connector with different interface standards;

the analog-to-digital conversion circuit comprises a first conversion circuit and a second conversion circuit; the first conversion circuit is used for converting an analog signal into a first digital signal matched with the first digital audio connector; the second conversion circuit is used for converting the analog signal into a second digital signal matched with the second digital audio connector.

3. The headset adapter of claim 2, wherein:

the first digital audio connector is a Lighting connector, and the second digital audio connector is a TypeC connector.

4. The headset adapter of claim 1, comprising:

and the detection control circuit is used for controlling the analog-to-digital conversion circuit to work under the condition that the analog audio connector is detected to be connected with the electronic equipment and the digital audio connector is detected to be connected with the earphone.

5. The headset adapter of claim 4, comprising:

the detection control circuit is also used for verifying whether the earphone inserted into the digital audio connector is matched with the earphone adapter.

6. The headset adapter of claim 1, wherein:

the battery unit is a rechargeable battery;

the earphone adapter further comprises:

and the charging circuit is used for controlling the charging of the battery unit under the condition that the digital audio connector is connected with a power supply.

7. The headset adapter of claim 1, wherein:

the analog audio interface is a coaxial audio plug.

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