CN106383288A - Test equipment for USB interface earphone - Google Patents
Test equipment for USB interface earphone Download PDFInfo
- Publication number
- CN106383288A CN106383288A CN201610725265.7A CN201610725265A CN106383288A CN 106383288 A CN106383288 A CN 106383288A CN 201610725265 A CN201610725265 A CN 201610725265A CN 106383288 A CN106383288 A CN 106383288A
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- Prior art keywords
- probe
- module
- test equipment
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
Abstract
The invention discloses test equipment for a USB interface earphone. The test equipment comprises a short-circuit test module, a control module, a gating module and a connection module, and is characterized in that the connection module is provided with a left channel probe, a right channel probe, a grounding probe and a microphone probe which are correspondingly connected with earphone lines of the earphone; the control module is set to control the gating state of the gating module so as to select one probe to act as a reference probe to connect to a voltage output end of the short-circuit test module and select another probe to act as a probe to be tested to connect to a voltage detection end of the short-circuit test module, and the short-circuit test module is set to output voltage through the voltage output end and judge the connection state between the probe to be tested and the corresponding reference probe according to voltage detected at the voltage detection end. Therefore, whether a short circuit occurs between bonding pads or not can be detected automatically through the test equipment, and the staff are helped to improve the analysis efficiency and the accuracy.
Description
Technical field
The present invention relates to earphone field tests, more particularly it relates to a kind of test for USB interface earphone sets
Standby.
Background technology
Existing USB interface earphone, the connection between its usb segment and earphone cord is to be welded by pcb board
, but it, during welding, is easily caused adjacent pad and directly results in short circuit, cause bad, and this kind of analyzing
When bad, universal meter is usually used, analyze speed is slow and inaccurate.Meanwhile, the bad analysis of trumpet end is also based on general-purpose
The test of table, analyze speed is slow.
Content of the invention
It is an object of the present invention to provide a kind of automatic detection USB interface and bad new skill in earphone cord welding process
Art scheme.
According to the first aspect of the invention, there is provided a kind of test equipment for USB interface earphone, including short-circuit test
Module, control module, gating module and link block, described link block has for each earphone cord one with described earphone
The one corresponding L channel probe connecting, R channel probe, grounded probe and microphone probe；Described control module is arranged to control
Make the strobe state of described gating module, to select a probe to connect as reference probe to the voltage of described short-circuit test module
Output end simultaneously selects another probe to connect as probe to be measured to the voltage detecting end of described short-circuit test module, described short circuit
Test module is arranged to through described voltage output end output voltage, and judges institute according to the voltage detecting described voltage detecting end
State the connection status between probe to be measured and corresponding reference probe.
Optionally, described test equipment also includes resistance detection module, power module, first switch and second switch,
It is described resistance detection module and described short-circuit test module for power supply that described power module is arranged to export supply voltage；Described
L channel probe connects through described first switch to the supply voltage output end of described power module, and described R channel probe is through institute
State second switch to connect to described supply voltage output end；Described control module is also configured to control described first switch and institute
State the on off state of second switch；Described resistance test module is arranged to detect described L channel probe and described grounded probe
Between resistance and described R channel probe and described grounded probe between resistance.
Optionally, described first switch and described second switch are relay.
Optionally, described test equipment also includes two pull-up resistors, first pull-up resistor and first switch series connection
It is connected between described L channel probe and described supply voltage output end, second pull-up resistor and second switch are connected in series
Between described R channel probe and described supply voltage output end.
Optionally, described short-circuit detecting module, gating module, control module and resistance detection module are carried by a MCU
For.
Optionally, described test equipment also includes display module, and described display module is arranged to show each to be measured
The connection status of probe.
Optionally, described display module at least includes LED display lamp corresponding with each connection status.
Optionally, described test equipment also includes communication module and host computer, and described communication module is arranged to institute
State connection status and be sent to described host computer.
Optionally, described test equipment also includes the startup control circuit being provided with start button, and described startup controls
Circuit is arranged to start the enable signal of test to the output of described control module.
It was found by the inventors of the present invention that in the prior art, exist using universal meter test earphone pad short-circuit analysis speed
Spend slow and inaccurate problem.In an embodiment of the present invention, by this test equipment it is possible between automatic detection pad
Whether it is short-circuited, help staff to improve analysis efficiency and the degree of accuracy.Therefore, present invention technical assignment to be realized or
Person's technical problem to be solved be that those skilled in the art never expect or it is not expected that, therefore the present invention is a kind of
New technical scheme.
By the detailed description to the exemplary embodiment of the present invention referring to the drawings, the further feature of the present invention and its
Advantage will be made apparent from.
Brief description
Combined in the description and the accompanying drawing of the part that constitutes specification shows embodiments of the invention, and even
It is used for together explaining the principle of the present invention with its explanation.
Fig. 1 is a kind of square frame principle of the enforcement structure according to a kind of test equipment for USB interface earphone of the present invention
Figure；
Fig. 2 is that the square frame of another kind of enforcement structure according to a kind of test equipment for USB interface earphone of the present invention is former
Reason figure；
Fig. 3 is according to a kind of a kind of circuit theory of embodiment of the test equipment for USB interface earphone of the present invention
Figure.
Description of reference numerals：
U1- short-circuit test module；U2- control module；
U3- gating module；U4- resistance detection module；
U5- power module；U6- display module；
U7- communication module；PC- host computer；
P1- voltage output end；P2- voltage detecting end；
L- L channel probe；R- R channel probe；
M- microphone probe；G- grounded probe；
The supply voltage output end of VCC- power module；R1, R2- resistance；
J1- link block；S1, S2- switch；
C1, C2- control signal；GND- earth terminal；
D1, D2, D3, D4, D5, D6, D7, D8-LED display lamp；
P1.0、P1.1、P1.2、P1.3、P1.4、P1.5、P1.6、P1.7、P2.0、P2.1、P2.2、P2.3、P2.4、
The I/O stitch of P2.5-MCU.
Specific embodiment
To describe the various exemplary embodiments of the present invention now with reference to accompanying drawing in detail.It should be noted that：Unless other have
Body illustrates, the positioned opposite, numerical expression of the part otherwise illustrating in these embodiments and step and numerical value do not limit this
The scope of invention.
Description only actually at least one exemplary embodiment is illustrative below, never as to the present invention
And its application or any restriction using.
May be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
When in the case of, described technology, method and apparatus should be considered a part for specification.
In all examples with discussion shown here, any occurrence should be construed as merely exemplary, and not
It is as restriction.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represent similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then do not need it is further discussed in subsequent accompanying drawing.
Existing USB interface earphone, USB interface includes codec chip and the weldering for connection corresponding with each earphone cord
Disk, codec chip by the digital difference signal that USB interface receives be decoded process obtain corresponding left channel signals and
Right-channel signals, and the analog microphone signal that microphone is gathered carries out coded treatment and obtains corresponding digital differential microphone
Signal is sent to the electronic equipment of connection through USB interface, therefore, USB interface has L channel pad, R channel pad, wheat
Gram wind pad and ground pad, earphone cord includes L channel line, R channel line, microphone lines and ground wire, L channel pad with left
Sound channel line is corresponding to be connected, and R channel pad is corresponding with R channel line to be connected, and microphone pad is corresponding with microphone lines to be connected, ground connection
Pad is corresponding with ground wire to be connected, and specifically, the connection between each pad and corresponding earphone cord is to be welded by pcb board
's.
In order to solve present in prior art analysis welding USB interface and earphone cord be easily caused adjacent pad it
Between whether short circuit when, using the slow and inaccurate problem of universal meter analyze speed, there is provided a kind of for USB interface earphone
Test equipment, as shown in figure 1, test equipment of the present invention includes short-circuit test module U1, control module U2, gating module U3 and company
Connection module J1, link block J1 has the L channel probe L connecting one to one for each earphone cord with earphone, R channel
Probe R, grounded probe G and microphone probe M, wherein, L channel probe L is connected with L channel pad and L channel line, right sound
Road probe R is connected with R channel pad and R channel line, and microphone probe M is connected with microphone pad and microphone lines, ground connection
Probe G is connected with ground pad and ground wire.Control module U2 is arranged to control the strobe state of gating module U3, to select one
Probe connects the voltage output end P1 to short-circuit test module U1 as reference probe and selects another probe as probe to be measured
Connect to the voltage detecting end P2 of short-circuit test module U1, short-circuit test module U1 is arranged to defeated through described voltage output end P1
Go out voltage, and judge the connection shape between probe to be measured and corresponding reference probe according to the voltage of detection voltage test side P2
State.
For example, when control module U2 controls the strobe state of gating module U3, to select grounded probe G as reference probe
Connect to the voltage output end P1 of short-circuit test module U1, L channel probe L connects to short-circuit test module as probe to be measured
During the voltage detecting end P2 of U1, short-circuit test module U1 is through voltage output end P1 output voltage signal, if short-circuit test module
The voltage detecting end P2 of U1 is not detected by voltage signal, then not short between the L channel pad of explanation earphone and ground pad
Road；If the voltage detecting end P2 of short-circuit test module U1 will detect voltage signal, illustrate the L channel pad of earphone with
Short circuit occurs between ground pad.Again using R channel probe R and microphone probe M as probe to be measured, test earphone
Connection status between R channel pad and ground pad and the connection status between microphone pad and ground pad.Then,
Again respectively using L channel probe L, R channel probe R and microphone probe M as reference probe, with each pad of test earphone
Between connection status.Wherein, connection status is short-circuit or normal.
So, by this test equipment it is possible to whether be short-circuited between automatic detection pad, staff is helped to carry
High analyte efficiency and the degree of accuracy.
This test equipment can also include the startup control circuit being provided with start button, start control circuit and be arranged to
Start the enable signal of test to the output of control module U2, specifically, when start button is pressed, starting control circuit will
Start the enable signal of test to the output of control module U2, this enable signal can be for example high level so that control module U2
The strobe state of control passage selecting module U3, to select a probe to connect as reference probe to the electricity of short-circuit test module U1
Pressure output end P1 simultaneously selects another probe to connect as probe to be measured to the voltage detecting end P2 of short-circuit test module U1.
Further, this startup control circuit is also configured to when start button is lifted it is impossible to control module U1
Output starts the enable signal of test, for example, can be persistently to export low level so that control module U1 stops.
Positive pole due to the left otaphone of earphone is connected with L channel line, and negative pole is connected with ground wire, the positive pole of auris dextra receiver
It is connected with R channel line, negative pole is connected with ground wire, the resistance between the both positive and negative polarity of receiver is fixing, for example, can be A, therefore
Detect resistance between L channel pad and ground pad and R channel pad and connect by using universal meter in the prior art
The state to detect corresponding receiver for the resistance between ground pad, but such analyze speed is slow.One in the present invention specifically real
Apply in example, this test equipment can also detect left otaphone by detecting the resistance between L channel probe L and grounded probe G
Whether normal, detect whether auris dextra receiver is normal by detecting the resistance between R channel probe R and grounded probe G.
Specifically, this test equipment also includes resistance detection module U4, power module U5, first switch S1 and second switch
It is that resistance detection module U4 and short-circuit test module U1 are powered that S2, power module U5 are arranged to export supply voltage；L channel
Probe L connects through first switch S1 to supply voltage output end VCC of power module U5, and R channel probe R is through second switch S2
Connect to supply voltage output end VCC；Control module U2 is also configured to control the switch of first switch S1 and second switch S2
State；Resistance test module U4 is arranged to detect the resistance between L channel probe L and grounded probe G and R channel probe R
Resistance and grounded probe G between.
So, by this test equipment it is possible to automatically detect whether be short-circuited and receiver state between pad simultaneously,
Staff is helped to improve analysis efficiency and the degree of accuracy.
Wherein, first switch S1 and second switch S2 can be the gate-controlled switches such as relay, metal-oxide-semiconductor or triode, example
As can be first switch S1 be NMOS tube, second switch S2 be relay.In one particular embodiment of the present invention, first
Switch S1 and second switch S2 is relay.
For the ease of detecting the resistance of left otaphone and auris dextra receiver, in one particular embodiment of the present invention, this survey
Examination equipment also includes two pull-up resistors R1, R2, and first pull-up resistor R1 and first switch S1 are connected in series in L channel and visit
Pin L and supply voltage output end VCC, second pull-up resistor R2 and second switch S2 is connected in series in R channel probe R and electricity
Between pressure output end VCC.So, form loop between supply voltage output end VCC, pull-up resistor R1, left otaphone and ground wire,
Form loop between supply voltage output end VCC, pull-up resistor R2, auris dextra receiver and ground wire, for example, can detect that L channel is visited
Voltage between pin L and grounded probe G, to calculate the resistance of left otaphone, detects between R channel probe R and grounded probe G
The resistance to calculate auris dextra receiver for the voltage.
When first switch S1 and second switch S2 are both turned on, if detected between L channel probe L and grounded probe G
Resistance and R channel probe R and grounded probe G between resistance be A, then left otaphone is all normal with auris dextra receiver；As
The resistance that fruit detects between L channel probe L and grounded probe G is the resistance between B, R channel probe R and grounded probe G
For A, and differing greatly between resistance A and resistance B is then it is assumed that left otaphone is bad, auris dextra receiver is normal；If a left side is detected
Resistance between sound channel probe L and grounded probe G and the resistance between R channel probe R and grounded probe G be B then it is assumed that
Left otaphone and auris dextra receiver are all bad.
Further, this test equipment also includes display module U6, and display module U6 is arranged to show and each treats probing
The connection status of pin, specifically, display module U6 at least includes LED display lamp corresponding with each connection status, for example, include
LED display lamp D1, the corresponding grounded probe G of connection status and microphone probe between corresponding grounded probe G and R channel probe R
The LED display lamp of connection status between the LED display lamp D2 of connection status between M, corresponding grounded probe G and L channel probe L
LED display lamp D4, the corresponding R channel probe R of connection status and a left side between D3, corresponding R channel probe R and microphone probe M
It is connected shape between the LED display lamp D5 of connection status and corresponding microphone probe M and L channel probe L between sound channel probe L
The LED display lamp D6 of state, for example, can be R channel pad and the microphone pad showing earphone when LED display lamp D4 is bright
Between occur short circuit, when LED display lamp D6 is bright, show between the microphone pad of earphone and L channel pad occur short circuit,
When not having display lamp bright, between each pad showing earphone, all there is no short circuit generation；Can also be that every LED display lamp is permissible
Send the light of different colours, represent short circuit between the corresponding pad of earphone when LED display lamp sends ruddiness, LED display lamp sends green
Connect normal between the corresponding pad of light representations earphone, such as when LED display lamp D4 sends ruddiness, and other LED display lamps are all sent out
Go out green glow, then show, between the R channel pad of only earphone and microphone pad, short circuit occurs, be all connected between other pads
Normally.
On this basis, display module U6 is also configured to the state showing left otaphone and auris dextra receiver, specifically, shows
Show that module U6 also includes LED display lamp corresponding with each receiver state, the LED for example including corresponding left otaphone state shows
The lamp D7 and LED display lamp D8 of corresponding auris dextra receiver state, for example, can be when LED display lamp D7 is bright, show a left side for earphone
Otaphone is bad, when LED display lamp D7, D8 all do not work, shows that two receivers of earphone are all normal；Can also be every LED
Display lamp can send the light of different colours, represents that the corresponding receiver of earphone is bad when LED display lamp sends ruddiness, LED display lamp
Send green glow and represent that the corresponding receiver of earphone is normal, such as when LED display lamp D7 sends green glow, and LED display lamp D8 sends ruddiness,
Then show that the left otaphone of earphone is normal, and auris dextra receiver is bad.
In such manner, it is possible to whether the connection status being clear that between probe normal, short circuit and each between which pin
Receiver state, and display module U6 realize simple, with low cost.
On this basis, in order to reduce circuit space, in one particular embodiment of the present invention, short-circuit detecting module
U4, gating module U3, control module U2 and resistance detection module U1 are provided by a MCU.As shown in figure 3, the P1.5 of MCU,
P2.0, P2.1, P2.2 stitch is connected respectively to the grounded probe G of link block J1, R channel probe R, microphone probe M
With L channel probe L, P2.3, P2.4, P2.5, P1.6, P1.7, P1.0, P1.3, P1.4 stitch of MCU is connected respectively to LED and shows
Show the positive pole of lamp D1, D2, D3, D4, D5, D6, D7, D8, the negative pole of every LED display lamp is all grounded, P1.1 the and P1.2 pin of MCU
Pin is respectively connecting to first switch S1 and the control signal of second switch S2, and first switch S1 and pull-up resistor R1 are connected in series
Between supply voltage output end VCC and L channel probe L, second switch S2 and pull-up resistor R2 are connected in series in supply voltage
Between output end VCC and R channel probe R, so that first switch S1 is as relay as a example, when the defeated C1 of control signal enters high level
When, L channel probe L connects to supply voltage output end VCC through pull-up resistor R1, when control signal input low level, left
Sound channel probe L is not connected with supply voltage output end VCC.
P1.1 the and P1.2 stitch of MCU all exports low level to the control signal of first switch S1 and second switch S2
C1, C2, first to detect the connection status between each pad, P1.5, P2.0, P2.1, P2.2 stitch output voltage respectively of MCU
Signal to the corresponding probe connecting, the probe of input voltage signal as reference probe, to detect that other do not have voltage signal defeated
Whether the probe entering has voltage signal, in this way, then short circuit between the probe of voltage signal and reference probe is detected, such as no, then
Connect normal between two probes, such as when the P2.0 stitch of MCU outputs voltage signal to R channel probe R, R channel probe R
Will be used as reference probe, if microphone probe M is detected there is voltage signal, and L channel probe L and grounded probe G does not examine
Measure voltage to believe, then between the R channel pad of explanation earphone and microphone pad, short circuit occurs, and R channel pad and a left side
The connection of sound channel pad is normal, R channel pad is connected normally with ground pad, then, the P1.6 stitch of MCU will export high level,
P1.7 and P2.3 stitch will export low level so that LED display lamp D4 lights, and LED display lamp D1, D5 do not light.
After having detected the connection status between each pad, P1.1 the and P1.2 stitch of MCU all exports high level to right
The control signal of the relay answered, with the resistance of test earphone receiver, if detect that the resistance of left otaphone and fixed value A are poor
Away from larger, and the resistance of auris dextra receiver is equal to fixed value A then it is assumed that left otaphone is bad, and auris dextra receiver is normal, the P1.4 of MCU
Stitch will export high level, P1.3 stitch will export low level so that LED display lamp D7 light and LED display lamp D8 does not send out
Light.
In order to be preserved all results of test, being easy to testing result is carried out the later stage reviews, the test of the present invention
Equipment also includes communication module U7 and host computer PC, and communication module U7 is arranged to connection status between each pad and receiver
State is sent to host computer PC in real time, meanwhile, host computer PC can preserve and show result, in this way, it is possible to relatively clearer,
Timely see the connection status between each pad and receiver state, and, the later stage, this test information can be reviewed.
Specifically, this communication module U7 can be to convert data to the transformats such as USB, LAN, serial ports or WiFi to pass
Deliver to host computer PC.
Although being described in detail to some specific embodiments of the present invention by example, the skill of this area
Art personnel it should be understood that example above is merely to illustrate, rather than in order to limit the scope of the present invention.The skill of this area
Art personnel are it should be understood that can modify to above example without departing from the scope and spirit of the present invention.This
Bright scope is defined by the following claims.
In addition, this test equipment can also include interface arrangement, communicator, input unit etc..Interface arrangement is for example
Including USB interface, RS232 interface, RS485 interface etc..Communicator for example can carry out there is wired or wireless communication.Input dress
Put and for example can include touch-screen, keyboard etc..
The description of the various embodiments described above primary focus and the difference of other embodiment, but those skilled in the art should be clear
Chu, the various embodiments described above can be used alone as needed or be combined with each other.
Although being described in detail to some specific embodiments of the present invention by example, the skill of this area
Art personnel it should be understood that example above is merely to illustrate, rather than in order to limit the scope of the present invention.The skill of this area
Art personnel are it should be understood that can modify to above example without departing from the scope and spirit of the present invention.This
Bright scope is defined by the following claims.
Claims (9)
1. a kind of test equipment for USB interface earphone is it is characterised in that include short-circuit test module (U1), control module
(U2), gating module (U3) and link block (J1), described link block (J1) has for each earphone with described earphone
L channel probe (L), R channel probe (R), grounded probe (G) and microphone probe (M) that line connects one to one；Described control
Molding block (U2) is arranged to control the strobe state of described gating module (U3), to select a probe to connect as reference probe
To the voltage output end (P1) of described short-circuit test module (U1) and select another probe to connect to described short as probe to be measured
The voltage detecting end (P2) of road test module (U1), described short-circuit test module (U1) is arranged to through described voltage output end
(P1) output voltage, and judge that described probe to be measured is visited with corresponding benchmark according to the voltage detecting described voltage detecting end (P2)
Connection status between pin.
2. test equipment according to claim 1 is it is characterised in that described test equipment also includes resistance detection module
(U4), power module (U5), first switch (S1) and second switch (S2), described power module (U5) is arranged to output power supply
Voltage is described resistance detection module (U4) and described short-circuit test module (U1) power supply；Described L channel probe (L) is through described
First switch (S1) connects to the supply voltage output end (VCC) of described power module (U5), and described R channel probe (R) is through institute
State second switch (S2) to connect to described supply voltage output end (VCC)；Described control module (U2) is also configured to control institute
State first switch (S1) and the on off state of described second switch (S2)；Described resistance test module (U4) is arranged to detect institute
State the resistance between L channel probe (L) and described grounded probe (G) and described R channel probe (R) and described grounded probe
(G) resistance between.
3. test equipment according to claim 2 is it is characterised in that described first switch (L) and described second switch (R)
It is relay.
4. test equipment according to claim 2 is it is characterised in that described test equipment also includes two pull-up resistors
(R1, R2), first pull-up resistor (R1) and first switch (S1) are connected in series in described L channel probe (L) and described power supply
Between voltage output end (VCC), second pull-up resistor (R2) and second switch (S2) are connected in series in described R channel probe
(R) and described supply voltage output end (VCC) between.
5. test equipment according to claim 2 is it is characterised in that described short-circuit detecting module (U1), control module
(U2), gating module (U3) and resistance detection module (U4) are provided by a MCU.
6. test equipment according to claim 1 is it is characterised in that described test equipment also includes display module (U6),
Described display mould (U6) block is arranged to show the connection status of each probe to be measured.
7. test equipment according to claim 6 is it is characterised in that described display module (U6) at least includes and each company
The state that connects corresponding LED display lamp.
8. test equipment according to claim 1 it is characterised in that described test equipment also include communication module (U7) and
Host computer (PC), described communication module (U7) is arranged to for described connection status to be sent to described host computer (PC).
9. test equipment according to claim 1 is it is characterised in that described test equipment also includes being provided with start button
Startup control circuit, described startup control circuit be arranged to described control module (U2) output start test enable letter
Number.
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|---|---|---|---|
| CN201610725265.7A CN106383288A (en) | 2016-08-25 | 2016-08-25 | Test equipment for USB interface earphone |
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|---|---|---|---|
| CN201610725265.7A CN106383288A (en) | 2016-08-25 | 2016-08-25 | Test equipment for USB interface earphone |
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Cited By (6)
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| CN107371117A (en) * | 2017-08-29 | 2017-11-21 | 广东虹勤通讯技术有限公司 | A kind of loudspeaker detection means and method |
| CN108064347A (en) * | 2017-11-28 | 2018-05-22 | 福建联迪商用设备有限公司 | The audio pin test method and test device of communication module |
| CN108549045A (en) * | 2018-04-18 | 2018-09-18 | 常州市都威电子有限公司 | A kind of USB data line detecting system and device |
| CN109444626A (en) * | 2018-10-26 | 2019-03-08 | 浙江丰源智能装备有限公司 | Short-circuit test system and its working method between a kind of motor commutation device piece |
| CN111025188A (en) * | 2019-12-31 | 2020-04-17 | 广东虹勤通讯技术有限公司 | Automatic testing tool for short circuit of USB interface |
| CN112305449A (en) * | 2019-07-24 | 2021-02-02 | 苏州清越光电科技股份有限公司 | Light-emitting element defect detection jig and screen short circuit detection method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203027489U (en) * | 2013-01-16 | 2013-06-26 | 东莞市伟旺达电子有限公司 | Indication circuit for testing earphone |
| CN103414981A (en) * | 2013-07-17 | 2013-11-27 | 天地融科技股份有限公司 | Device, method and terminal for recognizing audio interface pins |
| CN103986999A (en) * | 2014-04-14 | 2014-08-13 | 小米科技有限责任公司 | Method, device and terminal equipment for detecting earphone impedance |
| CN204595138U (en) * | 2015-03-27 | 2015-08-26 | 江苏峰工电气科技有限公司 | Hyperchannel line scanning instrument |
| CN105188009A (en) * | 2015-08-31 | 2015-12-23 | 武汉科技大学 | Earphone line short circuit automatic detection and repairing method and device |
-
2016
- 2016-08-25 CN CN201610725265.7A patent/CN106383288A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203027489U (en) * | 2013-01-16 | 2013-06-26 | 东莞市伟旺达电子有限公司 | Indication circuit for testing earphone |
| CN103414981A (en) * | 2013-07-17 | 2013-11-27 | 天地融科技股份有限公司 | Device, method and terminal for recognizing audio interface pins |
| CN103986999A (en) * | 2014-04-14 | 2014-08-13 | 小米科技有限责任公司 | Method, device and terminal equipment for detecting earphone impedance |
| CN204595138U (en) * | 2015-03-27 | 2015-08-26 | 江苏峰工电气科技有限公司 | Hyperchannel line scanning instrument |
| CN105188009A (en) * | 2015-08-31 | 2015-12-23 | 武汉科技大学 | Earphone line short circuit automatic detection and repairing method and device |
Non-Patent Citations (1)
| Title |
|---|
| 韩雪涛 等: "《巧用万用表检测电子元器件》", 30 November 2012 * |
Cited By (8)
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| CN107371117A (en) * | 2017-08-29 | 2017-11-21 | 广东虹勤通讯技术有限公司 | A kind of loudspeaker detection means and method |
| CN107371117B (en) * | 2017-08-29 | 2020-08-14 | 广东虹勤通讯技术有限公司 | Loudspeaker detection device and method |
| CN108064347A (en) * | 2017-11-28 | 2018-05-22 | 福建联迪商用设备有限公司 | The audio pin test method and test device of communication module |
| CN108549045A (en) * | 2018-04-18 | 2018-09-18 | 常州市都威电子有限公司 | A kind of USB data line detecting system and device |
| CN109444626A (en) * | 2018-10-26 | 2019-03-08 | 浙江丰源智能装备有限公司 | Short-circuit test system and its working method between a kind of motor commutation device piece |
| CN109444626B (en) * | 2018-10-26 | 2024-04-26 | 浙江丰源智能装备有限公司 | Short circuit test system between motor phase changer sheets and working method thereof |
| CN112305449A (en) * | 2019-07-24 | 2021-02-02 | 苏州清越光电科技股份有限公司 | Light-emitting element defect detection jig and screen short circuit detection method |
| CN111025188A (en) * | 2019-12-31 | 2020-04-17 | 广东虹勤通讯技术有限公司 | Automatic testing tool for short circuit of USB interface |
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Application publication date: 20170208 |