TWI411953B - Electronic device and interface controlling method - Google Patents

Abstract

An electronic device includes an audio interface, an audio input processing module, an audio output processing module, and a controlling apparatus. The audio interface is used for connecting to a peripheral audio device. The audio input processing module is used for processing an audio signal inputted to the electronic device. The audio output processing module is used for processing an audio signal outputted from the electronic device. The controlling apparatus is connected to the audio interface for switching the audio interface to conduct the audio input processing module or the audio output processing module according to function of the peripheral audio device connected to the audio interface. An interface controlling method of the electronic device is also provided.

Description

Electronic device and interface control method thereof

The invention relates to an electronic device and an interface control method thereof, in particular to an electronic device with an audio interface and an interface control method thereof.

With the development of technology, electronic devices have spread to thousands of households. For example, computers have become more and more widely used in homes and work.

Existing electronic devices have a wide range of functions, and they can often work with many external devices to make them more widely available. The external audio device is divided into an audio input device and an audio output device. For example, the computer can work with external audio devices such as microphones and stereos to achieve sound recording and playback. The audio interface for the two external audio devices has an audio input interface and an audio output interface.

As shown in FIG. 1, the conventional electronic device 10 includes an audio input interface 11 for connection to the audio input device 20 and an audio output interface 13 for connection to the audio output device 30. The electronic device 10 further includes an audio input processing module 12 and an audio output processing module 14. The audio input processing module 12 is connected to the audio input interface 11 for processing the audio signal input by the audio input device 20. The audio output processing module 14 is connected to the audio output interface 13 for processing the audio signal output by the electronic device 10 and outputting the processed audio signal to the audio output device 30 through the audio output interface 13.

The audio input interface 11 and the audio output interface 13 of the electronic device 10 are two independent interfaces. When used, the user needs to insert a corresponding audio interface according to the function of the external audio device to work normally. However, when the user first uses the external audio device, it is likely that the two external audio devices are not working properly due to the insertion of the wrong interface.

In view of this, it is necessary to provide an electronic device that can switch the input and output functions of the audio interface.

It is also necessary to provide an interface control method for an electronic device that can switch audio interface input and output functions.

An electronic device includes an audio interface, an audio input processing module, an audio output processing module and a control device, wherein the audio interface is used for connecting an external audio device; the audio input processing module is configured to process an audio signal input to the electronic device The audio output processing module is configured to process an audio signal output by the electronic device; the control device is connected to the audio interface, and the audio interface is controlled according to an external audio device connected to the audio interface, so that the audio interface is at the audio input The processing module is switched between the audio output processing module and the audio output processing module.

An interface control method for controlling an audio interface to switch between an audio input processing module and an audio output processing module, comprising the steps of: detecting whether an external audio device is inserted into the audio interface; and if there is an external audio device Inserting the audio interface generates a detection signal with an external audio device inserted; issuing a system prompt; Determining whether it is used for audio input; if the judgment result is an audio input, issuing a command to strobe the audio input processing module and turning on the audio interface and the audio input processing module; if the determination result is not an audio input, issuing a strobe The audio output processing module instructs and turns on the audio interface and the audio output processing module.

The electronic device and the interface control method are controlled by the control device to switch the audio interface between the audio input function and the audio output function, so that the audio input interface and the audio output interface can be universally used, so that the user can use the external audio device. It will not work properly because the audio interface is inserted incorrectly.

10‧‧‧Electronic equipment

11‧‧‧Audio input interface

12‧‧‧Audio input processing module

13‧‧‧Audio output interface

14‧‧‧Audio output processing module

20‧‧‧Audio input device

30‧‧‧Audio output device

100‧‧‧Electronic equipment

110‧‧‧Audio interface

120‧‧‧Control device

121‧‧‧Detection unit

122‧‧‧Control unit

123‧‧‧Gating unit

1230‧‧‧ Relay

124‧‧‧Switch unit

124a‧‧‧Electronic switch

124b‧‧‧Mechanical switch

125‧‧‧User Interface

130‧‧‧Audio input processing module

140‧‧‧Audio output processing module

200‧‧‧Audio input device

300‧‧‧Audio output device

S801-S817‧‧‧Steps

Figure 1 is a schematic diagram showing the structure of a prior art electronic device.

FIG. 2 is a schematic structural diagram of an electronic device for audio input according to a first preferred embodiment.

FIG. 3 is a schematic structural diagram of an electronic device for audio output according to a first preferred embodiment.

FIG. 4 is a schematic structural diagram of an electronic device for audio input according to a second preferred embodiment.

FIG. 5 is a schematic structural diagram of an electronic device for audio output according to a second preferred embodiment.

FIG. 6 is a schematic structural diagram of an electronic device for audio input according to a third preferred embodiment.

FIG. 7 is a schematic structural diagram of an electronic device for audio output according to a third preferred embodiment.

Figure 8 is a flow chart of an interface control method for an electronic device.

Referring to FIG. 2 and FIG. 3 together, the electronic device 100 of the preferred embodiment may be connected to the audio input device 200 or the audio output device 300 to implement audio signal transmission between the audio input device 200 or the audio output device 300 and the electronic device 100. .

The audio input device 200 and the audio output device 300 are external audio devices of the electronic device 100, and work together with the electronic device 100 to realize sound input and playback. The audio input device 200 is for a user to input an audio signal, such as a microphone. The audio output device 300 is for outputting an audio signal output from the electronic device 100, such as an audio and a headphone.

The electronic device 100 includes a control device 120 and an audio interface 110, an audio input processing module 130, and an audio output processing module 140 connected to the control device 120.

The audio interface 110 is used to interface with the audio input device 200 or the audio output device 300 to enable audio signal transmission between the electronic device 100 and the audio input device 200 or the audio output device 300.

The control device 120 is configured to control the audio interface 110 to switch between an input function and an output function, and includes a detecting unit 121, a control unit 122, a gating unit 123, and a switching unit 124. The detecting unit 121 is connected to the audio interface 110 for detecting whether an external audio device is inserted on the audio interface 110 and transmitting a detection signal to the control unit 122 when the external audio device is detected. The detecting unit 121 can detect the power of the audio interface 110 The value of the resistance is judged whether or not the external audio device is inserted. When the resistance value of the audio interface 110 changes, a signal having the external audio device inserted into the audio interface 110 is output to the control unit 122.

The control unit 122 is coupled to the detection unit 121 for processing the signals detected by the detection unit 121 and responding to a function of issuing a system prompt on the user interface 125 to select the audio interface 110. The system prompt includes two options for the audio interface 110 for audio input and for audio output, and the control unit 122 issues an instruction to control the operation of the gating unit 123 according to the selection result of the system prompt on the user interface 125.

The gating unit 123 is connected to the control unit 122. The switching unit 124 is switched between the audio input processing module 130 and the audio output processing module 140 according to an instruction issued by the control unit 122. When the selection result prompted by the control unit 122 is the audio interface 110 for audio input, the audio input device 200 is inserted in the audio interface 110 (as shown in FIG. 2). The control unit 122 sends an instruction to the strobe audio input processing module 130 to the strobe unit 123, so that the switch unit 124 turns on the audio interface 110 and the audio input processing module 130 to implement the audio input function of the audio interface 110, and the audio input device 200 The input audio signal is input to the electronic device 100 through the audio interface 110. When the selection result prompted by the control unit 122 is the audio interface 110 for audio output, the audio output device 300 is inserted in the audio interface 110 (as shown in FIG. 3). The control unit 122 sends an instruction of the strobe audio output processing module 140 to the strobe unit 123, so that the switch unit 124 turns on the audio interface 110 and the audio output processing module 140, and implements the audio output function of the audio interface 110, and outputs the electronic device 100. The audio signal is output to the audio output device 300 through the audio interface 110.

The audio input processing module 130 and the audio output processing module 140 receive the received audio signal. The number is processed accordingly, such as encoding the recorded audio signal and decoding the audio signal to be played.

Referring to FIG. 4 and FIG. 5, the switch unit 124 can use the electronic switch 124a to implement the switching between the audio input processing module 130 and the audio output processing module 140. The electronic switch 124 can be a semiconductor transistor, such as a bipolar transistor or a field effect transistor, and its base or gate is connected to the control unit 122. The control unit 122 realizes audio by controlling the conduction and cutoff of the bipolar transistor or the FET. The switching between the input processing module 130 and the audio output processing module 140 is performed to implement the input function and the output function of the audio interface 110.

Referring to FIG. 6 and FIG. 7 simultaneously, the gating unit 123 employs a relay 1230. The switch unit 124 is a mechanical switch 124b. The relay 1230 is connected to the control unit 122. The mechanical switch 124b is switched between different contacts according to an instruction issued by the control unit 122, thereby turning on the audio interface 110 and the audio input processing module 130 or the audio output processing module 140. The input function or the output function of the audio interface 110 is implemented. When the audio input device 200 inserted in the audio interface 110 is used for audio input, the control unit 122 issues an instruction to turn on the audio input processing module 130 to the relay 1230, so that the mechanical switch 124b turns on the audio interface 110 and the audio input processing module 130. The input function of the audio interface 110 is implemented. When the audio output device 300 inserted by the audio interface 110 is used for audio output, the control unit 122 issues an instruction to turn on the audio output processing module 140 to the relay 1230, so that the mechanical switch 124b turns on the audio interface 110 and the audio output processing module 140. The output function of the audio interface 110.

The electronic device 100 can control the audio interface 110 to switch between the audio input function and the audio output function by the control of the control device 120, thereby implementing an audio input interface and sound. The frequency output interface has a universal effect, so that the user does not work properly when using the external audio device because the wrong audio interface 110 is inserted.

The interface control method flow of the electronic device 100 is as shown in FIG. 8. The flow starts, and the process proceeds to step S801, where the resistance value of the audio interface 110 is detected to determine whether an external audio device is inserted into the audio interface 110.

In step S803, it is determined whether the resistance value of the audio interface 110 has changed. If the resistance value has not changed, no external audio device is inserted, and the process returns to step S801. If the resistance value changes, an external audio device is inserted to generate a detection signal, and the process proceeds to step S805.

In step S805, the detecting unit 121 generates a signal inserted by the external audio device and outputs the detection signal to the control unit 122.

In step S807, the control unit 122 processes the detection signal output by the detecting unit 121 and responds by issuing a system prompt on the user interface 125 to prompt the user whether the audio interface 110 is used for audio input.

In step S809, it is determined whether the audio interface 110 is used for audio input. If the audio interface 110 is used for audio input, the external audio device inserted in the audio interface 110 is the audio input device 200, and the process proceeds to step S811.

In step S811, the control unit 122 issues an instruction to gate the audio input processing module 130, and then proceeds to step S811.

Step S813, the audio interface 110 and the audio input processing module 130 are turned on, and the input function of the audio interface 110 is implemented, and the audio signal input by the audio input device 200 is passed through the sound. The frequency interface 110 is input to the electronic device 100.

In step S809, if the audio interface 110 is not used for audio input, the external audio device inserted in the audio interface 110 is the audio output device 300, and the process proceeds to step S815.

In step S815, the control unit 122 issues an instruction to turn on the audio output processing module 140, and then proceeds to step S817.

In step S817, the audio interface 110 and the audio output processing module 140 are turned on, and the output function of the audio interface 110 is implemented. The audio signal output by the electronic device 100 is output to the audio output device 300 through the audio interface 110.

The interface control method can control the audio interface 110 to switch between the audio input function and the audio output function by the control of the control device 120, thereby realizing the universal effect of the audio input interface and the audio output interface, so that the user does not use the external audio device. The wrong audio interface 110 is inserted and does not work properly.

100‧‧‧Electronic equipment

200‧‧‧Audio input device

110‧‧‧Audio interface

120‧‧‧Control device

121‧‧‧Detection unit

122‧‧‧Control unit

1230‧‧‧ Relay

124b‧‧‧Mechanical switch

125‧‧‧User Interface

130‧‧‧Audio input processing module

140‧‧‧Audio output processing module

Claims (9)

An electronic device comprising an audio interface for connecting an external audio device, an audio input processing module for processing an audio signal input to the electronic device, and an audio output processing module for processing an audio signal output by the electronic device, The improvement is that the electronic device further includes a control device, and the control device is connected to the audio interface, and controls the audio interface according to an external audio device connected to the audio interface, so that the audio interface is in the audio input processing module and the audio The output processing module switches between conduction so that the audio interface can switch between the audio input function and the audio output function. The electronic device of claim 1, wherein the control device comprises a detecting unit, a control unit, a user interface, a gating unit and a switch unit, wherein the detecting unit is configured to detect whether an external audio device is inserted on the audio interface and Generating a detection signal; the control unit processes the detection signal and issues a system prompt on the user interface and issues an instruction according to a selection result prompted by the system; the gate unit switches the switch unit to turn on the audio input processing module according to the instruction The audio output processing module. The electronic device of claim 2, wherein when the control unit issues a command to strobe the audio input processing module, the gating unit causes the switch unit to conduct the audio interface and the audio input processing module; When the control unit issues a command to strobe the audio output processing module, the gating unit causes the switch unit to conduct the audio interface and the audio output processing module. The electronic device of claim 2, wherein the switch unit is an electronic switch. The electronic device of claim 4, wherein the control unit issues When the audio input processing module command is strobed, the gating unit turns the electronic switch on the audio interface and the audio input processing module; when the control unit issues a command to strobe the audio output processing module, the gating The unit causes the electronic switch to conduct the audio interface and the audio output processing module. The electronic device of claim 2, wherein the gating unit is a relay, the switch unit is a mechanical switch, and the control unit passes the mechanical switch to the audio input processing module and the audio output through the relay Switch between conduction between modules. The electronic device of claim 6, wherein when the control unit issues a command to strobe the audio input processing module, the relay causes the mechanical switch to turn on the audio interface and the audio input processing module; When the control unit issues a command to strobe the audio output processing module, the relay causes the mechanical switch to turn on the audio interface and the audio output processing module. An interface control method for controlling an audio interface to switch between an audio input processing module and an audio output processing module, comprising the steps of: detecting whether an external audio device is inserted into the audio interface; and if there is an external audio device Inserting the audio interface generates a detection signal inserted by an external audio device; issuing a system prompt; determining whether it is used for audio input; and if the determination result is an audio input, issuing a command to strobe the audio input processing module and turning on the audio interface And the audio input processing module; if the determination result is not an audio input, issuing a command to strobe the audio output processing module and turning on the audio interface and the audio output processing module. The interface control method of claim 8, wherein the step of detecting whether an external audio device is inserted into the audio interface comprises the steps of: detecting a resistance value of the audio interface; determining whether the resistance value changes; When the resistance value changes, an external audio device is inserted into the audio interface.