KR101731391B1 - Apparatus and method for function test of earphone - Google Patents

Abstract

The present invention relates to an earphone function test apparatus and an earphone test apparatus, and more particularly, to an earphone function test apparatus and an earphone test apparatus which are provided with an audio amplifier section for amplifying a voice signal inputted through a microphone of an earphone, A logic signal processing unit for distinguishing button signals from each other and determining whether there is an operation abnormality of each function button, and a display unit for displaying each function test result, and a receiver, a microphone, a remote The effect of being able to check the entire function of the control is obtained.

Description

TECHNICAL FIELD [0001] The present invention relates to an earphone function test apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an earphone function test apparatus and a test method, and more particularly, to an earphone function test apparatus and a test method for inspecting functions of an earphone receiver and a remote control.

Recently, information and communication technology has been developed as a single device for multimedia centered on mobile.

Among them, earphones for smart devices are used in various countries such as China, Vietnam and Cambodia, mainly domestic companies as they are used worldwide.

Currently, earphones for smart devices including smart multimedia devices around the world are produced and used in such a large amount that it is difficult to understand the numbers.

For example, FIG. 1 is a block diagram of a general earphone, and FIGS. 2 and 3 are block diagrams of a conventional earphone function test apparatus.

1 to 3, the earphone 1 is composed of a receiver 2, a microphone 4 and a remote control 3.

The receiver 2 is a device for converting an electrical signal into an acoustic signal so that the user can hear the sound source reproduced from the smart device, and is divided into left and right sides.

The user can listen to all sounds generated in the smart device such as a telephone call sound and a music reproduction sound through the receiver 2.

The microphone 4 is provided on the rear side of the remote control 3 of the earphone 1.

The microphone 4 performs a function of inputting a user's voice signal during a telephone conversation in a state in which the user equips the earphone 1 to the smart device.

The remote control 3 has a volume UP / DOWN function for adjusting the size of a sound output by the user from the receiver 2 and a PLAY (SEND) / STOP (END) function for performing a call attempt and a call termination.

That is, the remote control 3 functions to adjust the size of the sound or sound outputted during the call or music reproduction, to perform a call or to end the call according to the operation of the PLAY / STOP button, and to play or stop the music May be performed simultaneously.

The earphone function test according to the prior art is divided into two processes as shown in FIGS. 2 and 3.

The function inspector first inspects the functions of the receiver 2 and the microphone 4 using an inspection device 5 such as an audio amplifier as shown in Fig. 2, and checks the function of the earphone 1, Is connected to the smart terminal 6, and each function of the remote control 3 is secondarily inspected by operating each button.

That is, in the first inspection process of the earphone 1, the function inspector examines the functions of the receiver 2 and the microphone 4 of the earphone 1 in consideration of the user environment.

Here, the inspection apparatus 5 amplifies the voice signal inputted through the microphone 4 and transmits it to the receiver, and the receiver outputs the amplified voice signal.

Through this inspection process, the function inspector checks whether the signal output from the microphone 4 and the signals output from the left and right receivers 2 are present or not, so that the functions of the microphones 4 and the receiver 2 Respectively.

In the second inspection process of the earphone, the functional inspector checks each function of the remote control (3), that is, the volume UP, volume DOWN, PLAY (SEND) / STOP (END).

Here, the volume UP function is a function of listening to a sound source using a smart device or increasing a sound during a voice call, and the volume down function is a function of listening to a sound source using a smart device or reducing a sound during a voice call.

The PLAY / STOP function is used to play or stop a sound source when listening to a sound source using a smart device, or to make a voice call or end a voice call using a smart device.

The secondary inspection of the earphone 1 is performed by directly connecting the earphone 1 to the smart device 6 and sending the UI of the smart device 6 to the smartphone 6, In the same manner as described above.

At this time, the function inspector operates the UI of the smart device using the UP button of the remote control 3 to check whether the sound source reproduced in the smart device 6 is increased, and, using the volume DOWN button, Make sure that the sound source being played on the device is reduced.

When the two functions are confirmed, the PLAY / STOP button is operated to check stop and playback of the sound source, and then end the test.

As described above, the earphone function inspection process according to the related art requires a lot of human labor due to performing the function inspection with the maximum consideration of the environment of the user, and because of the functional inspection process binarized by the first and second inspection processes, It is taking time.

One example of a technology for inspecting the function of the earphone is disclosed in Patent Documents 1 and 2 below.

Patent Document 1 discloses a first step of preparing an earphone setting jig including an earphone holder unit, a microphone holder unit and a measuring device connection unit. The earphone of the earset to be tested is mounted on the earphone holder unit, A second step of connecting the connection jack of the earset to the measuring unit connection unit, a third step of placing the earset setting jig on the conveyer after the completion of mounting the earset on the earset setting jig so that the automatic transfer is performed, And a fourth step of automatically measuring the sound quality of the earphone and the sound pressure of the microphone after the measuring instrument connection terminal is connected to the measuring unit connection unit when the measuring instrument is moved to the measuring point.

Patent Document 2 discloses a method of connecting a plurality of ear jack terminals by inserting a single-pole plug into an ear jack, electrically shorting each ear jack terminal, Detecting an electrical signal from each pin and determining whether a circuit is open between each pin and each ear jack terminal from whether or not a signal from each pin is detected, The functional test method configuration is described.

Korean Patent Registration No. 10-1569472 (Notice of November 16, 2015) Korea Patent Registration No. 10-1287119 (issued on July 17, 2013)

However, in Patent Document 1, each earphone has to be installed in the earphone setting jig, and only the sound quality of the sound or sound outputted from the receiver or the sound pressure of the microphone is limitedly performed.

Patent Document 2 has a problem of inspecting only whether or not the circuit is open between each pin provided at the plug of the ear jack assembly and the ear jack terminal.

Therefore, it is a very important factor to determine the productivity of the product by reducing the labor cost and the production amount per hour of the labor force for the testing of the earphone function for the smart device. It minimizes the time consumed during the inspection process during earphone production, The development of an earphone function test device for a smart device is required.

SUMMARY OF THE INVENTION An object of the present invention is to provide an earphone function test device and an inspection method that can check whether a full function is normally performed in an earphone for a smart device.

Another object of the present invention is to unify the functional testing process of the earphone, which is divided into an inspection process of a receiver and a microphone and an inspection process of a remote control, thereby reducing the number of manpower input for functional testing of the earphone, And a method for inspecting an earphone function.

Another object of the present invention is to provide an earphone function test device and an inspection method which can reduce the time, human and economic costs required for functional testing of the earphone, and improve the efficiency of the entire earphone production process including the function test process will be.

In order to achieve the above object, an earphone function testing apparatus according to the present invention includes an audio amplifier unit for amplifying a voice signal input through a microphone of an earphone, an abnormality of a microphone using an amplified voice signal, A logic signal processing unit for distinguishing each function button signal inputted from the remote control of the remote control unit and judging the operation abnormality of each function button, and a display unit for displaying each function test result.

(A) connecting an earphone jack to a socket module provided in a main body, (b) inputting an audio signal through an earphone microphone in an audio amplifying unit, (C) signal processing the amplified voice signal in the logic signal processing unit to determine whether the microphone is abnormal or not, and (c) transmitting the amplified voice signal to the logic signal processing unit and the left and right receiver. d) measuring the impedance of the coils provided in the left and right receivers in the impedance measuring unit, and determining whether there is an abnormality in the left and right receivers using the measured impedance values; and (e) And checking whether each of the function operation buttons is operated normally by using signals classified and divided All.

As described above, according to the earphone function testing device and the testing method of the present invention, it is possible to check the entire functions of the receiver, the microphone, and the remote control provided in the earphone by using one testing device.

According to the present invention, it is possible to easily check the inspection result by adjusting the rotation angle of the display unit and the height of the socket block according to the key of the function inspector.

In addition, according to the present invention, since the socket block is manufactured in the USB type and is replaceably mounted, when the socket block is damaged or deformed in the inspection of a plurality of earphones, it is possible to replace the socket block and reuse it Loses.

As a result, according to the present invention, it is possible to improve the inspection process that is duplicated during the function test of the earphone, to reduce the number of manpower input for the function test, to improve the production amount per hour, It is possible to obtain an effect that the process can be efficiently improved.

1 is a block diagram of a general earphone,
FIG. 2 and FIG. 3 are block diagrams of an earphone function test apparatus according to the related art,
FIG. 4 is a block diagram illustrating a principle of testing an earphone function testing apparatus according to a preferred embodiment of the present invention.
FIG. 5 is a block diagram of the earphone function test apparatus shown in FIG. 4;
6 and 7 are perspective views of an earphone function test apparatus according to a preferred embodiment of the present invention,
FIG. 8 is a flowchart illustrating steps of testing an earphone function test apparatus according to a preferred embodiment of the present invention.

Hereinafter, an apparatus and method for testing an earphone function according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The present invention can examine four functions of the earphone, namely, the functions of the receiver and the microphone, and the functions of the buttons of the remote control by using one earphone function testing device without connecting with the smart device.

FIG. 4 is a block diagram illustrating the principles of the earphone function testing apparatus according to the preferred embodiment of the present invention, and FIG. 5 is a block diagram of the earphone function testing apparatus shown in FIG.

4 and 5, an earphone functional testing apparatus 10 according to a preferred embodiment of the present invention includes an audio amplifying unit 20 for amplifying a voice signal input through a microphone 4 of an earphone 1, A logic signal processing unit 30 for checking the presence or absence of an abnormality of the microphone 4 using the amplified voice signal and distinguishing the respective function button signals inputted from the remote control 3 and judging the operation abnormality of each function button, And a display unit 40 for displaying each function test result.

The earphone function testing apparatus 10 according to the preferred embodiment of the present invention includes an impedance measuring unit 50 for measuring an impedance of a coil provided in the receiver 2, a control unit 60 for controlling driving of each device, And a power supply unit 70 for supplying power to the power supply unit 70.

The audio amplifier 20 amplifies the voice signal input through the microphone 4 and transmits the amplified voice signal to the logic signal processor 30 and the left and right receivers 2 of the earphone 1. [

Thus, the function inspector can determine the presence or absence of the abnormality of the microphone 4 by using the voice signal output through the left and right receivers 2. [

The logic signal processing unit 30 can determine whether there is an abnormality in the microphone 4 using the audio signal amplified by the audio amplifying unit 20 and generate a driving signal so as to light the indicator in accordance with the determination result.

The logic signal processing unit 30 distinguishes each function operation button signal input from the remote control 3 and determines whether each of the function operation button signals is normal or not.

Here, the logic signal processing unit 30 displays characters on each 7-segment 41 of the display unit 40 to be described below according to the determination result, or generates a driving signal to turn on or off each LED 42 .

To this end, the logic signal processor 30 processes the amplified voice signal from the audio amplifier 20 to check the function of the microphone 4 and transmits the amplified voice signal to the left and right receivers 2, A signal processor 31, a distributor 32 for distinguishing each function operation button signal input from the remote controller 3, and a discriminator 33 for discriminating whether or not each function operation button signal is normal, And a remote control operation state signal processing unit 33 for generating a driving signal to the display unit 40 according to the result.

The distributor 32 outputs the three signals of the volume up, down, play / stop (or call connection / termination) through the one line from the remote control 3 to the remote controller 3 And a demultiplexer for separating the inputted signal into three modes of volume up, down, play / stop (or call connection / termination).

On the other hand, the logic signal processing unit 30 outputs a driving signal to drive the pair of buzzer 34 for guiding the normal or abnormal state to different sounds according to the determination result of the normal operation state of each function operation button of the remote control 30 .

The impedance measuring unit 50 may measure the impedance values of the coils provided in the left and right receivers 2 of the earphone 1 and input a driving signal to the display unit 40 to display the measured impedance values.

To this end, the impedance measuring unit 50 may include a pair of impedance meters (not shown) electrically connected to the coils of the left and right receivers 2 through electrodes provided in earphone jacks.

In the present embodiment, the impedance of the left and right receivers is measured using the impedance meter, but the present invention is not limited thereto.

That is, the present invention can be changed to apply not only the impedance measurement function but also a multitester device capable of measuring voltage, current, and the like.

In the case of applying the multi-tester in this way, the present invention can measure various values such as the voltage and current applied to the receiver together with the impedance of the coil provided in the left and right receivers.

Next, the configuration of the main body 11 and the display unit 40 of the earphone function testing apparatus 10 will be described in detail with reference to Figs. 6 and 7. Fig.

6 and 7 are perspective views of an earphone function test apparatus according to a preferred embodiment of the present invention.

6 and 7, the main body 11 may have a substantially hexahedral shape, and the display unit 40 may be provided on the upper end of the main body 11 such that the display unit 40 is rotatable to adjust the angle.

The main body 11 is made of a synthetic resin material or a metal material such as aluminum and is provided on both sides of the upper end of the main body 11 with a support rib 12 for rotatably coupling both ends of the display portion 40 .

The display unit 40 includes a 7-segment 41 for displaying characters according to the normal input of each function operation button signal, an LED 42 for lighting or blinking according to the presence or absence of a signal abnormality of each function operation button, And a display panel 43 for displaying the measured impedance values in numerals.

In addition, the display unit may include a rotation lever 44 for selecting an object to be measured, that is, impedance, voltage, current, and the like, when the impedance measuring unit 50 is applied with a multitester.

The 7-segment 41 has a character 'H' for displaying a volume up signal, a character 'L' for displaying a volume down signal, and a character 'P' for displaying a play / And may be provided in three.

The LEDs 42 may be provided to be turned on or off in accordance with the driving signal of the logic signal processing unit 30 depending on the presence or absence of the signal of the volume up / down button and the play / stop button.

Here, the 7-segment 41 and the LED 42 may be driven either alone or in conjunction with each other depending on the selection of the function inspector through the switch unit 80 to be described below.

The rotation lever 44 can be rotated by a rotation operation of the function inspecting source to select any one of an object, impedance, voltage, and current to be measured.

On the other hand, the main body 11 may be provided with a lifting block 13 so as to be vertically movable.

The lifting block 13 is provided with a socket module 14 to which an earphone jack is coupled and allows the function inspector to perform a function test conveniently by raising and lowering the lifting block 13 according to a key searched by the function inspector.

The socket module 14 is a portion to which the earphone jack is coupled. In this embodiment, the socket module 14 can be provided as a USB type module so that a predetermined number of earphones 1 can be inspected and replaced.

Accordingly, when a socket module to which an earphone jack is coupled is damaged or deformed in a plurality of earphone function processes, the present invention can replace the socket module and reuse it.

An operation lever 15 connected to the elevation block 13 is provided on the front surface of the elevation block 13 so as to protrude forward and a vertical direction is provided on the front surface of the body 11 so as to move the operation lever 15 upward and downward So that the elongated hole 16 can be formed.

On one side of the main body 11, a switch unit 80 for turning on and off each inspection function may be provided.

The switch unit 80 includes a first switch 81 for turning on and off the impedance measuring unit 50, a second switch 82 for turning on and off the 7-segment 41, And a fourth switch 84 for turning on and off the third switch 83 and the buzzer 34. [

The first to fourth switches 81 to 84 are electrically connected to the impedance measuring unit 50, the 7-segment 41, the LED 42 and the buzzer 34, respectively, can do.

A control lever 17 is provided on one side of the main body 11 to adjust the volume output from the receiver 2. The main body 11 is coupled to a power supply unit 70 on the rear side of the main body 11, (Not shown) to which a power cable for connecting the power cable is coupled.

The control unit 60 controls driving of each device and can determine the presence or absence of an abnormality in the receiver 2 according to a result of comparing the impedance value measured by the impedance measuring unit 50 with a previously stored reference impedance value.

Next, a method of testing an earphone function testing apparatus according to a preferred embodiment of the present invention will be described in detail with reference to FIG.

FIG. 8 is a flowchart illustrating steps of testing an earphone function testing apparatus according to a preferred embodiment of the present invention.

When the power switch (not shown) is turned on in step S10 of FIG. 8, the power supply unit 70 converts the power supply level of the commercial power supplied through the power supply cable to each device provided in the earphone function test apparatus 10 And the control unit 60 initializes each device and prepares to perform the function check operation of the earphone 1.

The function inspector then connects the jack of the earphone 1 to the socket block 14 and turns on the first switch 81 for turning on and off the impedance measuring part 50 and turns on the remaining switches, The fourth switches 82 to 84 are turned off.

At this time, the function inspector adjusts the height of the elevator block 13 by moving the operation lever 15 in the up and down direction according to the sitting key, and controls the display unit 40 to easily check the display state of the display unit 40. [ Can be adjusted.

In step S12, the microphone 4 provided in the earphone 1 receives a voice signal from the functional inspecting unit. The audio amplifying unit 20 amplifies the inputted voice signal, and outputs the amplified voice signal to the logic signal processing unit 30 To the left and right receivers (2) of the earphone (1).

The microphone operation state signal processing unit 31 of the logic signal processing unit 30 processes the audio signal amplified by the audio amplification unit 20 to determine whether the microphone 4 is abnormal or not (S14). Here, the logic signal processing section 30 can turn on the indicator lamp according to the determination result.

At this time, the impedance measuring unit 50 measures impedance values of the coils provided in the left and right receivers 2 of the earphone 1, and generates a driving signal to the display unit 40 to display the measured impedance values. Then, the display unit 40 displays the measured impedance value on the screen of the display panel 43 according to the driving signal (S16).

At this time, the controller 60 may compare the measured impedance value with a preset reference impedance value to determine whether there is an abnormality in the left and right receivers.

The function inspector can determine the presence or absence of abnormality of the microphone 4 and the left and right receivers 2 by confirming the voice signal output through the left and right receivers 2 and the impedance values displayed on the display unit 40. [

When the function check of the microphone 4 and the receiver 2 is completed through the above process, the function of each function operation button provided in the remote control 3 is inspected.

To this end, the function inspector turns off the first switch 81, turns on and off the 7-segment 41, the third switch 83 turns on and off the LED 42, One or more of the fourth switches 84 for turning on and off the buzzer 34 can be selectively turned on.

If the function inspector inputs any one of the volume up, down and play / stop buttons provided in the remote control 3 and inputs the corresponding function operation button signal in step S18, the distributor 32 determines which function operation Button, and the remote control operation state signal processing unit 33 of the logic signal processing unit 30 performs a signal processing operation on the separated signal to determine an abnormality of the corresponding signal (S22).

At this time, the logic signal processing unit 30 is driven to drive at least one of the 7-segment 41, the LED 42, and the buzzer 34 according to the on / off states of the second to fourth switches 82 to 84 Signal.

For example, when the second switch 82 is turned on, the 7-segment 41 is displayed in a position corresponding to the corresponding function operation button among the three 7-segments 41 when the corresponding function operation button is operated normally 'H', 'P' or 'L' is displayed.

When the third switch 83 is turned on and the corresponding function operation button operates normally, one LED 42 connected to the corresponding function operation button among the three LEDs 42 lights or flashes.

When the fourth switch 84 is turned on and the corresponding function operation button operates normally, one buzzer 34 out of the pair of buzzer 34 outputs sound indicating the steady state, The other buzzer 34 outputs sound indicating the abnormal state.

In step S24, the control unit 60 checks whether or not the function check of all the function operation buttons is completed, and repeats the steps S18 to S24 until the function check of all the function operation buttons is completed.

On the other hand, if it is determined in step S24 that the function check of the all function buttons has been completed, the controller 60 terminates the function tests of the currently connected earphones 11 and repeats steps S12 to S24 .

Through the above process, the present invention can check the entire function of the receiver, the microphone, and the remote control provided in the earphone by using one test apparatus.

Although the invention made by the present inventors has been described concretely with the above embodiments, the present invention is not limited to the above embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

The present invention is applied to an earphone function inspection device and an inspection method technique for inspecting a full function of a receiver, a microphone, and a remote control provided in an earphone using one inspection device.

1: earphone 2: receiver
3: Remote control 4: Microphone
10: Earphone function test device
11: Main body 12: Support rib
13: Lift block 14: Socket module
15: Operation lever 16: Moving ball
17: control lever 20: audio amplifier
30: Logic signal processing unit 31: Microphone operation state signal processing unit
32: Distributor 33: Remote control operation state signal processor
34: buzzer 40: display unit
41: 7-segment 42: LED
43: display panel 44: rotation lever
50: Impedance measuring unit 60:
70: power supply unit 80: switch unit
81 to 84: First to fourth switches

Claims (10)

An audio amplifier for amplifying a voice signal inputted through a microphone of the earphone,
A logic signal processing unit for checking presence or absence of an abnormality of the microphone using the amplified voice signal and discriminating each function button signal input from the remote control of the earphone,
And a display unit for displaying each function test result. The method according to claim 1,
An impedance measuring unit for measuring an impedance of the coil provided in the receiver of the earphone,
A control unit for controlling driving of each device, and
Further comprising a power supply unit for supplying power to each device. 3. The apparatus of claim 1 or 2, wherein the logic signal processor
A microphone operation state signal processor for signal processing the audio signal amplified by the audio amplifier and checking the function of the microphone and transmitting the amplified audio signal to the left and right receivers,
A distributor for distinguishing each function operation button signal inputted from the remote control and
And a remote control operation state signal processing section for signal processing each of the divided function operation button signals to determine whether or not each of the function operation buttons is normal and generate a drive signal on the display section in accordance with the determination result Device. 3. The method of claim 2,
The display unit may include a 7-segment display unit for displaying characters according to whether the function operation button signal is normally input,
LED that lights or blinks according to the signal abnormality of each function operation button,
A display panel for displaying the impedance value measured by the impedance measuring unit in numerical form,
And a rotation lever for adjusting a range of an impedance to be measured by the impedance measuring unit,
Wherein the earphone function checking device is rotatably coupled to an upper end of the main body so as to be adjustable in angle. 5. The method of claim 4,
A lifting block having a socket module interchangeably installed therein and coupled to be vertically movable in a vertical direction;
A switch unit for turning on and off each function test operation of the earphone is provided,
The switch unit includes a first switch for turning on and off the impedance measuring unit,
A second switch for turning on and off the 7-segment,
A third switch for turning on and off the LED,
And a fourth switch for turning on and off a pair of buzzer for guiding the normal or abnormal state to different sounds according to the determination result of the normal or abnormal state of each function operation button. (a) coupling an earphone jack to a socket module provided in the main body,
(b) receiving and amplifying a voice signal input through the microphone of the earphone in the audio amplifying unit and transmitting the amplified voice signal to the logic signal processor and the left and right receivers,
(c) signal processing the audio signal amplified by the logic signal processing unit to determine whether the microphone is abnormal,
(d) measuring an impedance of a coil provided in the left and right receivers in the impedance measuring unit, and determining whether there is an abnormality in the left and right receivers using the measured impedance values; and
(e) dividing the signal input from the remote control of the earphone into the respective function operation buttons, and checking whether each function operation button operates normally using the separated signals. The method according to claim 6,
(f) displaying the measured impedance value of the step (d) and the normal operation test result of each function operation button of the step (e) on the display unit. 8. The method of claim 7, wherein step (f)
(f1) displaying a measured impedance value on a display panel of the display unit
(f2) According to the operation state of each switch provided in the switch section, the normal operation test result of each function operation button is displayed by character using the 7-segment character, the LED is lit or flickered, or the sound is outputted through the buzzer The method comprising the steps of: 9. The method according to claim 7 or 8,
Wherein the impedance measuring unit measures the impedance, voltage, or current of the left and right receivers according to a rotation operation of the rotation lever provided on the display unit when the impedance measuring unit is applied with a multitester. 10. The method of claim 9,
(g) replacing the socket module from the main body when the socket module is damaged or deformed.

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