CN205210928U - Audio frequency card - Google Patents
Audio frequency card Download PDFInfo
- Publication number
- CN205210928U CN205210928U CN201520845551.8U CN201520845551U CN205210928U CN 205210928 U CN205210928 U CN 205210928U CN 201520845551 U CN201520845551 U CN 201520845551U CN 205210928 U CN205210928 U CN 205210928U
- Authority
- CN
- China
- Prior art keywords
- port
- switch element
- device unit
- wire
- lead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Credit Cards Or The Like (AREA)
Abstract
The utility model provides an audio frequency card. Audio frequency card includes the control unit, electrical unit, switch element and sound -generating device unit, the control unit includes anodal port, negative pole port and input/output lead wire port, anodal port through the lead wire with the anodal of electrical unit links to each other, the negative pole port through the lead wire with electrical unit's negative pole links to each other, simultaneously the negative pole port pass through branch lead wire respectively with the switch element reaches the sound -generating device unit links to each other, input/output lead wire port through the lead wire respectively with the switch element reaches the sound -generating device unit links to each other. The utility model provides an audio frequency card, the control of switch element and sound -generating device unit is realized to input/output lead wire port of timesharing sharing, when saving preciousness, limited port resource, reduces the circuit board design processing degree of difficulty, improves reliability of an item and yields.
Description
Technical field
The utility model relates to field of intelligent cards, particularly, relates to a kind of audio card.
Background technology
Audio card is additional embedding sounding module on the cards such as bank card, magnetic stripe card, member card and IC-card, make it on the basis possessing original function, possess the functions such as acoustic communication, music and voice reminder, be the card of the energy sounding after a kind of upgrading simultaneously.
Along with the widespread use of modern information technologies, increasing function element starts to be integrated on card, more and more diversified, the integrated and hommization of the function of card, but the function element be integrated on card is more, this just requires the card control module port of greater number, and this has just occurred various functional requirement and increasing device is integrated, contradiction between the wiring that becomes increasingly complex and limited card area.
As shown in Figure 1, audio card 1 of the prior art comprises control module 11, power supply unit 13, switch element 15 and microphone device unit 17, described control module 11 comprises positive pole port 111, negative pole port 113, switch control rule port 115, first lead-in wire port 117 and the second lead-in wire port 119, described positive pole port 111 is connected with the positive pole of described power supply unit 13 by lead-in wire, described negative pole port 113 is connected with the negative pole of described power supply unit 13 by lead-in wire, described negative pole port 113 is connected with described switch element 15 by branch's lead-in wire simultaneously, described switch control rule port 115 is connected with described switch element 15 by lead-in wire.Described first lead-in wire port 117 and described second lead-in wire port 119 are connected with described microphone device unit 17 by lead-in wire.
The course of work of described audio card 1 is: before described switch element 15 is connected, described switch control rule port 115 is in input state, i.e. switch scanning state, the port of described microphone device unit 17 and described first lead-in wire port 117 and described second lead-in wire port 119 are in idle condition; When described switch element 15 is connected, described first lead-in wire port 117 and described second lead-in wire port 119 are in output state, namely described microphone device unit 17 is driven to work, now described switch control rule port 115 is in idle condition, and now its work of state on described audio card 1 does not produce any impact; After described microphone device unit 17 end-of-job, described control module 11 is in input state again, i.e. switch scanning state, and described first lead-in wire port 117 and described second lead-in wire port 119 are in idle condition.
At present, described switch element 15 and described microphone device unit 17 all independently control lead-in wire port and are connected to realize switch the basic function that afterwards described microphone device unit 17 plays sound for its point is equipped with on described control module 11, in general, described switch element 15 distributes one to two lead-in wire ports, described microphone device unit 17 distributes one to two lead-in wire ports, both need distribution two to four ports altogether, the control module abundant for port resource is no problem, but the few or particular application for port resource, each port resource is particularly precious, at this moment the port resource that just there will be needs cannot the situation of practical requirement.
And fix at described audio card 1 card area, a large amount of lead-in wire ports and lead-in wire thereof add the design of described audio card 1 circuit board electronic circuit, the difficulty of the link such as typesetting and processing, not only production cost increases, and also reduces reliability and the yields of product simultaneously.
So, be necessary to make further improvements above-mentioned traditional audio card, to avoid above-mentioned defect.
Utility model content
To bring because of the lead-in wire port of switch element and the independent assignment control of microphone device unit that port is not enough, audio card board design difficulty of processing is high, product yields is low and the technical matters of poor reliability for solving above-mentioned audio card, the utility model provides a kind of by the audio card of switch element and the time sharing shared input and output lead end mouth practical function of microphone device unit, not only reduce control module port number demand, also make board design difficulty of processing reduce, improve reliability and the yields of product.
A kind of audio card, described audio card comprises control module, power supply unit, switch element and microphone device unit, described control module comprises positive pole port, negative pole port and input and output lead-in wire port, described positive pole port is connected with the positive pole of described power supply unit by lead-in wire, described negative pole port is connected with the negative pole of described power supply unit by lead-in wire, described negative pole port is gone between by branch and is connected with described switch element and described microphone device unit respectively simultaneously, described input and output lead-in wire port is connected with described switch element and described microphone device unit respectively by lead-in wire.
In a kind of preferred embodiment of the audio card provided at the utility model, described switch element is any one in pushbutton switch or keyswitch.
In a kind of preferred embodiment of the audio card provided at the utility model, described microphone device unit is any one in piezoelectric buzzer, piezoelectric ceramic wafer or loudspeaker.
In a kind of preferred embodiment of the audio card provided at the utility model, described power supply unit is any one in battery, piezoelectric ceramics supply module or Thermocouple module.
In a kind of preferred embodiment of the audio card provided at the utility model, described switch element and described microphone device unit use described input and output to go between port in turn.
In a kind of preferred embodiment of the audio card provided at the utility model, described input and output lead end mouthpiece has the handoff functionality of input and output.
Compared to prior art, the audio card that the utility model provides has following beneficial effect:
One, the switch element and microphone device unit that distribute separately lead-in wire port in prior art are improved to shared input and output lead-in wire port by the audio card that the utility model provides, utilize the sequencing that switch element and microphone device cell operation time exist, and switch element does not affect the principle of microphone device cell operation, by switching the input and output state of input and output lead-in wire port, in a time multiplexed manner its working time is staggered, thus realize two kinds of functions that an input and output lead-in wire port realizes switch and voice output successively, the port utilization ratio of control module is higher,
Two, the port number demand of audio card that the utility model provides can be reduced to three from five, port pins is also reduced to three from five, save valuable and limited port resource, greatly reduce the design of audio card circuit layout, typesetting and difficulty of processing, improve reliability and the yields of product, reduce production cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of a kind of embodiment of audio card of prior art;
The structural representation of a kind of embodiment of audio card that Fig. 2 provides for the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 2, is the structural representation of a kind of embodiment of audio card that the utility model provides.Described audio card 2 comprises control module 21, power supply unit 23, switch element 25 and microphone device unit 27.Described control module 21 comprises positive pole port 211, negative pole port 213 and input and output lead-in wire port 215, described positive pole port 211 is connected with the positive pole of described power supply unit 23 by lead-in wire, described negative supply lead-in wire 213 is connected with the negative pole of described power supply unit 23 by lead-in wire, described negative pole port 213 is gone between by branch and is connected with described switch element 25 and described microphone device unit 27 respectively simultaneously, and described input and output lead-in wire port 215 is connected with described switch element 25 and described microphone device unit 27 respectively by lead-in wire.
The input and output lead-in wire port of described control module 21 is I/O port, possesses the handoff functionality of input and output.
The port number of described control module 21 is reduced to three from five of the prior art, port pins is also reduced to three from five, port utilization ratio is higher, greatly reduces the circuit layout design of described audio card 2, typesetting and difficulty of processing, improves reliability and the yields of product.
Described power supply unit 23 is powered for described audio card 2, and described power supply unit 23 can be any one in battery, piezoelectric ceramics supply module or Thermocouple module.
Described switch element 25 is any one in pushbutton switch or keyswitch, and structure is simple, conveniently produces.
Described microphone device unit 27 is any one in piezoelectric buzzer, piezoelectric ceramic wafer or loudspeaker.
The course of work of the audio card 2 that the utility model provides is: before described switch element 25 is connected, described I/O port 215 is in input state, i.e. switch scanning state; After described switch element 25 is connected, described control module 21 waits for described switch element 25 release conditions, after described switch element 25 is discharged into off-state by on-state, described I/O port 215 state transfers output state to, drives described microphone device unit 27 to sound; After completing described microphone device unit 27 sounding, described I/O port 215 transfers input state to, i.e. switch scanning state.
Described switch element 25 and described microphone device unit 27 working time is utilized to have sequencing, and described switch element 25 does not affect the principle of work of described microphone device unit 27, a time sharing shared described I/O port 215, by switching the input and output state of described I/O port 215, realize the switching function of described switch element 25 and the sound output function of described microphone device unit 27 in turn.
The audio card 2 that the utility model provides has following beneficial effect:
One, the switch element and microphone device unit that distribute separately 2-4 lead-in wire port in prior art are improved to a shared described I/O port 215 by described audio card 2, utilize the sequencing that described switch element 25 and described microphone device unit 27 working time exist, and described switch element 25 does not affect the principle of work of described microphone device unit 27, by switching the input and output state of described I/O port 215, in a time multiplexed manner its working time is staggered, two kinds of functions that a described I/O port 215 realizes switch and voice output successively can be realized, the port utilization ratio of described control module 21 is higher,
Two, the port number demand of described audio card 2 can be reduced to three from five, port pins is also reduced to three from five, save valuable and limited port resource, greatly reduce the design of described audio card 2 circuit layout, typesetting and difficulty of processing, improve reliability and the yields of product, reduce production cost.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. an audio card, it is characterized in that, comprise control module, power supply unit, switch element and microphone device unit, described control module comprises positive pole port, negative pole port and input and output lead-in wire port, described positive pole port is connected with the positive pole of described power supply unit by lead-in wire, described negative pole port is connected with the negative pole of described power supply unit by lead-in wire, described negative pole port is gone between by branch and is connected with described switch element and described microphone device unit respectively simultaneously, described input and output lead-in wire port is connected with described switch element and described microphone device unit respectively by lead-in wire.
2. audio card according to claim 1, is characterized in that, described switch element is any one in pushbutton switch or keyswitch.
3. audio card according to claim 1, is characterized in that, described microphone device unit is any one in piezoelectric buzzer, piezoelectric ceramic wafer or loudspeaker.
4. audio card according to claim 1, is characterized in that, described power supply unit is any one in battery, piezoelectric ceramics supply module or Thermocouple module.
5. audio card according to claim 1, is characterized in that, described switch element and described microphone device unit use described input and output lead-in wire port in turn.
6. audio card according to claim 1, is characterized in that, described input and output lead end mouthpiece has the handoff functionality of input and output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520845551.8U CN205210928U (en) | 2015-10-28 | 2015-10-28 | Audio frequency card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520845551.8U CN205210928U (en) | 2015-10-28 | 2015-10-28 | Audio frequency card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205210928U true CN205210928U (en) | 2016-05-04 |
Family
ID=55848633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520845551.8U Expired - Fee Related CN205210928U (en) | 2015-10-28 | 2015-10-28 | Audio frequency card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205210928U (en) |
-
2015
- 2015-10-28 CN CN201520845551.8U patent/CN205210928U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106255003B (en) | Audio processor in the operation control method and terminal device of earphone noise reduction | |
| CN102395084B (en) | Headset circuit | |
| CN104254040B (en) | Mobile communication terminal Audio conversion system | |
| CN103246209B (en) | Power management system | |
| CN104217709A (en) | Electronic organ with keys freely combinable and method for realizing free combination | |
| CN103561166B (en) | A kind of earphone, terminal and touch control method thereof based on close range communication techniques | |
| CN205210928U (en) | Audio frequency card | |
| CN104125527A (en) | Multi-earphone volume control circuit and control method | |
| CN209448930U (en) | Acousto-optic driver and acousto-optic device | |
| CN208538468U (en) | A kind of control buzzer issues the circuit of chord | |
| CN104506671B (en) | A kind of production method of mobile phone and mobile phone | |
| CN202904427U (en) | Clock tree generation circuit with multiple function modes | |
| CN204481799U (en) | A kind of keyboard scanning circuit | |
| CN204332347U (en) | Can the mellotron of independent assortment button | |
| CN101164038B (en) | Low-power register array for fast shift operations | |
| CN202145308U (en) | Multi-master module management interface module of severe-environment-resistant computer | |
| ATE413731T1 (en) | MODIFIED REPETATIVE CELL COMPARISON TECHNIQUE FOR INTEGRATED CIRCUITS | |
| CN105554617A (en) | Earphone system | |
| CN202383253U (en) | Scan chain asynchronous reset register reset port processing circuit | |
| CN201216014Y (en) | Microphone with volume control function | |
| CN105792073B (en) | External audio device and audio-frequency processing method | |
| CN203786518U (en) | Bus substation communication circuit board for numerical control system | |
| CN205029406U (en) | Wireless charger with bluetooth sound function | |
| CN219107597U (en) | Portable sound equipment | |
| CN201562266U (en) | Audio system and electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170302 Address after: 510660 Guangdong, Guangzhou, Dongpu, No. two, No. 67 Road, Tai Po Trade Park, building 228, room 8 Patentee after: Guangzhou Mdt InfoTech Ltd Address before: 518035 Guangdong, Qianhai, Shenzhen Hong Kong cooperation zone, the former Bay Road, building, room 1, room A, No. 201 Patentee before: SHENZHEN QIANHAI EXCE-CARD TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20201028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |