CN2702372Y - 7.1 sound track surround sound ear phone with USB interface - Google Patents
7.1 sound track surround sound ear phone with USB interface Download PDFInfo
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- CN2702372Y CN2702372Y CN 200420045467 CN200420045467U CN2702372Y CN 2702372 Y CN2702372 Y CN 2702372Y CN 200420045467 CN200420045467 CN 200420045467 CN 200420045467 U CN200420045467 U CN 200420045467U CN 2702372 Y CN2702372 Y CN 2702372Y
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Abstract
The utility model relates to the technical field of electronic products, in particular to a 7. 1 sound track (including a 5. 1 sound track and a 5 sound track) surround sound ear phone with USB interface. One end of the line controller is connected with the 7. 1 sound track ear phone by a conducting wire to realize the signal transmission of a loudspeaker and a microphone; the other end is provided with a conducting wire and connects with an external input USB plug to realize the power supply and digital signal transmission. The utility model not only has all the advantages of the common 5. 1 sound track ear phone, but also can accomplish the replay as much as that of the 7. 1 sound track surround sound and is compatible with the replay of 5. 1 sound track downwards. The sound quality of the loudspeaker and the microphone is obviously better than the common audio frequency, which can manifest the fine part of the sound. The ear phone adopts the single USB plug without external power supply or signal, and is plug-and-play. The 7.1 sound track surround sound ear phone with USB interface is convenient to use and easy to operate with a good effect of multi-track surround sound. The 7.1 sound track surround sound ear phone with USB interface can replace the traditional sound card audio frequency system without disturbing other people when is in use.
Description
Technical field:
The utility model relates to technical field of electronic products, refers in particular to a kind of 7.1 sound channels (containing 5.1 sound channels and 5 sound channels) surround sound earphone with USB interface.
Background technology:
Along with the continuous development of computer technology, the diversified development of computer function, multimedia application more and more widely, building home theater on PC has become popular configuration.At music appreciating, when watching film, earphone brings people very big spiritual enjoyment as important multimedia audio output device, and this just requires to handle and to pay attention to the audio system of complicated multi-channel sound effect.And the output of traditional computer audio frequency must be by sound card equipment, and it is converted into audio signal output to loudspeaker with digital signal, produces sound.And sound card must be in the computer housing usually, and this just makes it be subjected to the electromagnetic interference (EMI) of numerous electron devices in the cabinet unavoidably, and makes the sound signal distortion of its generation.And simultaneously, software, the hardware of computer use has at present possessed 7.1 sound channels and has play condition; USB interface is also popularized in computer, so pursue acoustic music-lover and computer game player, expect a kind of collect sound field location, sound source move etc. apart from, channel separation and sound have multichannel, the effective 7.1 sound channel surround sound earphones that can be directly be used for computer by USB interface in time come out.
Summary of the invention:
The purpose of this utility model is to provide a kind of anti-electromagnetic wave interference performance that strengthens earphone, makes sound become pure, realizes the sound of high frequency, and has plug and play, 7.1 sound channel surround sound earphones with USB interface simple to operate, easy to use.
The technical solution of the utility model is: it comprises interface, line control machine and 7.1 sound channel earphones, and wherein interface is a USB plug that can be connected with computer; Be provided with numeral and analog signal conversion in the described line control machine, and an end of line control machine is connected with the 7.1 sound channel earphones that are provided with microphone by lead, the line control machine other end is connected with the USB plug of interface by lead.
Described line control machine is provided with four and is respectively the knob that increases sound volume button, the quiet button of loudspeaker, reduces sound volume button and mic mute button; Also be provided with two light emitting diode lamps that are respectively equipped with display working condition and microphone state on the line control machine.
Be respectively arranged with preposition left and right loudspeaker, rearmounted left and right loudspeaker, the left and right loudspeaker of side, central left and right loudspeaker and the left and right electromagnetic shaker of supper bass in the left and right sides auricular concha in the earphone, and in left and right auricular concha one is provided with microphone.
The utility model is the circuit that has increased a digital-to-analog conversion between USB interface and 7.1 sound channel earphones, and the digital-to-analog conversion work with former cause sound card is finished has moved on on the earphone.USB interface is carried out the signal transmission with digital form, can never be subjected to the interference of external electromagnetic clutter during output procedure, the simulating signal of having removed sound card output from is subjected to coming from the interior electromagnetic interference (EMI) of cabinet and can makes sound become definitely pure, can reach the sound of high frequency.And the utility model has adopted USB interface, and it makes this earphone have the function of plug and play, and entire product only has single structure, the simplification connected mode.In addition, the utility model has been integrated the output of 7.1 sound channels and the input of stereophony microphone audio of high-quality sound, because microphone signal transmits with digital audio, so can promote speech quality, increase the speech recognition success ratio, adapt to 3D recreation and online online game,, more can directly link up associative play with voice with the companion except available speech control.Simultaneously, the solution that the earphone that the utility model provides combines with microphone can be guaranteed the signal quality in the distance learning of spider lines, and attaching plug, 3.5mm audio jack are directly integrated by USB plug, thereby simple to operate, easy to use.
The utility model, sound dynamic effect and senior middle school bass aspect are outstanding than sound card, and music is melodious, and sense of movement is strong, and the sound quality of output is significantly good.Can both well show for extremely trickle sound in some films, music and the recreation.Sound such as soldier in the recreation walks on the desert neutralizes and the careless sound that contacts in thick grass; Draw the sound of rifle bolt, distant place stray bullet, can listen very clearly, feel distinct clear.The multichannel audio system performance that compares to common sound card configuration is outstanding, and the sound card equipment of alternative tradition.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a circuit working process flow diagram of the present utility model;
Fig. 3 is the circuit diagram of the utility model one preferred embodiment.
Specific embodiment:
As Fig. 1, the utility model comprises interface 1, line control machine 2 and 7.1 sound channel earphones, 3 three parts.Wherein line control machine 2 has four buttons, and being respectively increases sound volume button 21, and the quiet button 22 of loudspeaker reduces sound volume button 23 and mic mute button 24; Also have relay indicating light 25 and microphone pilot lamp 26 in addition.7.1 the numeral of sound channel signal and microphone signal and analog-converted are finished by the circuit in the line control machine 2.
See Fig. 2, after the USB plug of interface 1 and computer USB interface connect, relay indicating light 25 meeting Chang Liang on the line control machine 2, when the circuit between computer and the earphone 3 had the signal transmission, relay indicating light 25 can be glittering.Interface 1 is sent into digital/analog signal change-over circuit in the line control machine 2 by USB plug, audio digital signals with the computer USB interface transmission, convert the multichannel simulated audio signal to, this sound signal includes preposition sound channel signal, rearmounted voice signal, center channel/supper bass sound channel signal, side sound channel signal.The voice signal of these passages is connected with 7.1 sound channel earphones 3 by lead, is sent on the loudspeaker and electromagnetic shaker of corresponding sound channel on the 7.1 sound channel earphones, finishes sound reproduction.Total volume of channel sound can be regulated by the quiet button 22 of the increase sound volume button 21 on the line control machine 2, minimizing sound volume button 23 and loudspeaker, regulates or close immediately (mute state) with individual demand.
The port number of above-mentioned earphone 3 output multi-sound-channel earphones, can be set at the output of eight passages according to need by the corresponding software support, have respectively: preposition sound channel, rearmounted sound, center channel/supper bass sound channel, side sound channel are set at the left and right sound channels that has that is communicated to respectively in the earphone 3 left and right auricular conchas 31,32 when being set at each passage output.
Microphone 33 converts the voice signal of accepting to audio voltage signal on the earphone 3, pass analog/digital signal conversion circuit in the line control machine 2 back by lead, again by line control machine 2 by lead and USB plug, the digital signal of microphone 33 input is sent to computer handles.Mic mute button 24 on the line control machine 2 is the signal of mute microphone (MIC) 33 immediately, and microphone pilot lamp 26 can Chang Liang simultaneously.By corresponding software support, can do special processing to the sound that microphone receives on computers, the sound that can be transformed into other is sent earphone 3 again back to, and the sound that output was handled can be sent on the network by computer simultaneously.
See Fig. 3, this is the utility model one specific embodiment, wherein the USB plug CT1 of interface 1 is taken out from 1,4 pin by the 5V power supply of computer USB interface input, first electric capacity by C21, two kinds of different medium materials of C22 composes in parallel electric source filter circuit the electromagnetism clutter is filtered out, + 5V power supply is delivered to 27 and 37 pin of integrated circuit (IC) 1 by inductance L 10,27,37 pin of this integrated circuit (IC) 1 are parallel with filter capacitor C9, C10, C11, C12 equally, so that the clutter of line influence is further removed.4 pin of USB plug CT1 are received power ground and signal ground on line control machine 2 interior circuit boards respectively by inductance L 11, L12.The digital signal of 2,3 pin of USB plug is delivered to the corresponding digital signal pin of 8,19 pin of integrated circuit (IC) 1 respectively by resistance R 14, R15.Audio digital signals from the external input of USB plug CT1, after the D/A in the IC1 integrated circuit (D/A) conversion and power amplification, 35 pin by IC1 are exported preposition left channel signals, are coupled to the preposition L channel loudspeaker 311 in the left auricular concha 31 on the earphone 3 through capacitor C 30 inductance L 16.
36 pin by IC1 are exported preposition right-channel signals, are coupled to preposition R channel loudspeaker 321 in the auris dextra shell 32 on the earphone 3 through capacitor C 29 inductance L 5.
38 pin by IC1 are exported rearmounted left channel signals, are coupled to the rearmounted L channel loudspeaker 312 in the left auricular concha 31 on the earphone 3 through capacitor C 28 inductance L 4.
39 pin by IC1 are exported rearmounted right-channel signals, are coupled on the earphone 3 rearmounted R channel loudspeaker 322 in the auris dextra shell 32 through capacitor C 27 inductance L 3.
By 33 pin of IC1 output side left channel signals, be coupled on the earphone 3 side L channel loudspeaker 313 in the left auricular concha 31 through capacitor C 32 inductance L 8.
By the 34 pin output side right-channel signals of IC1, side R channel loudspeaker 323 in the auris dextra shell 32 on capacitor C 31 inductance L 7 coupling earphones 3.
By 40 pin of IC1 output center channel signal, be coupled on the earphone 3 center channel loudspeaker 314,324 parallel with one another in the left and right auricular concha 31 through capacitor C 26 inductance L 2.
41 pin output supper bass sound channel signal by IC41 is coupled to the supper bass sound channel electromagnetic shaker 315,324 of connecting in the left and right auricular concha 31,32 in the left auricular concha 31 on the earphone 3 through capacitor C 25 inductance L 1.
29 pin output by integrated circuit (IC) 1 supplies the bias voltage of microphone 33 work, through the microphone bias isolated from power filter capacitor of resistance R 9 and capacitor C 16 compositions, eliminates microphone 33 self-excitations and backdrop.Provide Mike the bias voltage of 33 wind operate as normal by microphone bias resistance R 10 inductance L 9 again.The sound that microphone 33 receives converts audio voltage signal to, behind C17 bypass filtering radio-frequency component, be coupled to 23,24 pin of integrated circuit (IC) 1 through capacitor C 14, C15, with microphone 33 left and right acoustic channels input amplifying circuits, again through IC internal mold analog/digital signal conversion circuit, convert digital signal to, send computer back to by USB plug CT1 and handle through resistance R 14, R15 from 18,19 pin of IC1.
Being connected between 43 pin of integrated circuit (IC) and the power supply ground increases sound volume button 21, realizes increasing volume and regulates.
Be connected between 44 pin of integrated circuit (IC) 1 and the power supply ground and reduce sound volume button 23, realize reducing volume and regulate.
Be connected to quiet button 22 of loudspeaker and mic mute button 24 between 46,47 pin of integrated circuit (IC) 1 and the power supply ground, the quiet control of loudspeaker or microphone 33 in the realization earphone 3.
11,12 pin of integrated circuit (IC) 1 are pilot lamp 25,26 current output terminals, by the light emitting diode as pilot lamp 25,26, make it luminous, as relay indicating light 25 or mic mute pilot lamp 26 through R12, R13 step-down current limliting.
What the used integrated circuit (IC) of present embodiment adopted is that specification is the integrated chip of CM106 (48 pins), and certainly, it also can adopt specification is chip or other similar chip of CM106 (100 pins).
Do the monophony except that the single microphone that is provided with on earphone in this foregoing description, can also adopt two microphones to make stereo purposes.
The above only is the preferred embodiment of the utility model, does not therefore limit the protection domain of the utility model, and modification and equivalence that the spirit of Fan Yiben creation is done change design, should be covered by in the application's claim.
Claims (5)
1, have 7.1 sound channel surround sound earphones of USB interface, it comprises: input interface (1), line control machine (2) and 7.1 sound channel earphones (3) is characterized in that: described interface (1) is a USB plug that can be connected with computer; Described line control machine is provided with numeral and analog signal conversion in (2), wherein an end of line control machine (2) is connected with the 7.1 sound channel earphones (3) that are provided with microphone (33) by lead, and line control machine (2) other end is connected by the USB plug of lead with interface (1).
2,7.1 sound channel surround sound earphones with USB interface according to claim 1 is characterized in that: line control machine (2) is provided with four and is respectively the knob that increases sound volume button (21), the quiet button of loudspeaker (22), reduces sound volume button (23) and mic mute button (24); Also be provided with two light emitting diode lamps (25,26) of difference display working condition and microphone state on the line control machine (2).
3,7.1 sound channel surround sound earphones with USB interface according to claim 1, it is characterized in that: be respectively arranged with preposition left and right loudspeaker (311,321), rearmounted left and right loudspeaker (312,322), the left and right loudspeaker of side (313,323), central left and right loudspeaker (314,324) and the left and right electromagnetic shaker of supper bass (315,325) in the left and right sides auricular concha in the earphone (3) (31,32), and in left and right auricular concha (31,32) one is provided with microphone (33).
4,7.1 sound channel surround sound earphones with USB interface according to claim 3, it is characterized in that: the power pin of the USB plug of interface (1) is connected to the electric source filter circuit that capacitor C 21, C22 compose in parallel, the power pin of this USB plug is connected to power supply input pin in the integrated circuit (IC) 1 by inductance L 10, and two power supply input pins of this integrated circuit (IC) 1 are parallel with filter capacitor C9, C10, C11, C12 equally; Another pin of USB plug is received power ground and signal ground on line control machine (2) interior circuit board respectively by inductance L 11, L12; Digital signal pin in the USB plug is tapped into corresponding digital signal pin in the integrated circuit (IC) 1 by resistance R 14, R15; Loudspeaker or electromagnetic shaker that D/A (D/A) conversion in the integrated circuit (IC) 1 and power amplification circuit output pin are connected to each sound channel in the earphone (3) respectively.
5,7.1 sound channel surround sound earphones with USB interface according to claim 3 is characterized in that: microphone (33) is connected with bias voltage output pin in the integrated circuit (IC) 1 through resistance R 9, capacitor C 16, resistance R 10 inductance L 9; Capacitor C 17 is connected to USB plug through the audio frequency input pin that capacitor C 14, C15 are coupled to integrated circuit (IC) 1 by integrated circuit (IC) 1 digital signal output pin and through resistance R 14, R15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420045467 CN2702372Y (en) | 2004-04-30 | 2004-04-30 | 7.1 sound track surround sound ear phone with USB interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420045467 CN2702372Y (en) | 2004-04-30 | 2004-04-30 | 7.1 sound track surround sound ear phone with USB interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2702372Y true CN2702372Y (en) | 2005-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420045467 Expired - Fee Related CN2702372Y (en) | 2004-04-30 | 2004-04-30 | 7.1 sound track surround sound ear phone with USB interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2702372Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388182C (en) * | 2006-11-23 | 2008-05-14 | 王祥贵 | Connecting line of USB interface with amplifier of microphone |
| CN103164378A (en) * | 2011-12-19 | 2013-06-19 | 联想(北京)有限公司 | Information processing equipment and method |
| CN103702249A (en) * | 2012-09-28 | 2014-04-02 | 上海斐讯数据通信技术有限公司 | Headphone interface device and control method based on the headphone interface device |
| CN104301821A (en) * | 2013-07-16 | 2015-01-21 | 郑国书 | Cable control device |
| WO2015192776A1 (en) * | 2014-06-18 | 2015-12-23 | 王玮冰 | Earphone with usb adapter |
| CN106714021A (en) * | 2016-11-30 | 2017-05-24 | 捷开通讯(深圳)有限公司 | Earphones and electronic assembly |
| CN117560604A (en) * | 2023-12-27 | 2024-02-13 | 深圳市泉音丽声科技有限公司 | Direct-push type six-horn headphone acoustic structure and driving method |
-
2004
- 2004-04-30 CN CN 200420045467 patent/CN2702372Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388182C (en) * | 2006-11-23 | 2008-05-14 | 王祥贵 | Connecting line of USB interface with amplifier of microphone |
| CN103164378A (en) * | 2011-12-19 | 2013-06-19 | 联想(北京)有限公司 | Information processing equipment and method |
| CN103164378B (en) * | 2011-12-19 | 2016-03-02 | 联想(北京)有限公司 | Messaging device and method |
| CN103702249A (en) * | 2012-09-28 | 2014-04-02 | 上海斐讯数据通信技术有限公司 | Headphone interface device and control method based on the headphone interface device |
| CN103702249B (en) * | 2012-09-28 | 2019-07-12 | 上海斐讯数据通信技术有限公司 | A kind of headphone interface device and the control method based on the headphone interface device |
| CN104301821A (en) * | 2013-07-16 | 2015-01-21 | 郑国书 | Cable control device |
| WO2015192776A1 (en) * | 2014-06-18 | 2015-12-23 | 王玮冰 | Earphone with usb adapter |
| CN106714021A (en) * | 2016-11-30 | 2017-05-24 | 捷开通讯(深圳)有限公司 | Earphones and electronic assembly |
| CN117560604A (en) * | 2023-12-27 | 2024-02-13 | 深圳市泉音丽声科技有限公司 | Direct-push type six-horn headphone acoustic structure and driving method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050525 |