CN2138868Y - Ear phone mnemonic device - Google Patents
Ear phone mnemonic device Download PDFInfo
- Publication number
- CN2138868Y CN2138868Y CN 92202288 CN92202288U CN2138868Y CN 2138868 Y CN2138868 Y CN 2138868Y CN 92202288 CN92202288 CN 92202288 CN 92202288 U CN92202288 U CN 92202288U CN 2138868 Y CN2138868 Y CN 2138868Y
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- CN
- China
- Prior art keywords
- earphone
- output
- circuit
- utility
- input
- 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
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Abstract
The utility model relates to an electronic mnemonic device. An electronic magnification circuit is arranged in an ear cover of a head type earphone with double sound channels. The original output conductive wires of the earphone are connected with the magnification circuit, and is used as another input of the magnification circuit. The speech signals of users are outputted in the earphone together with outer inputted signals after the speech signals are magnified. The utility model achieves the goals of mnemonics and tone correction together, and is good for mnemonics.
Description
The utility model is about the electronics mnemonic device.
Multiple electronics mnemonic device has appearred at present, its effect is that user's pronunciation is exported by earphone after electronic amplifier equipment amplifies, import user's ear into, to reach the purpose of mnemonic(al), as the 172nd page of " device is promoted in articulator and memory " literary composition in the chief editor of " CYBERSPACE " editorial office " electronic production and application circuit a collection of selected materials ".But must put on the output earphone when using said apparatus, like this, if it is just very inconvenient to want to use recorder output earphone contrast tape pronunciation to rectify sound.
In view of the foregoing, the purpose of this utility model provides a kind of electronics mnemonic device, and it not only can will import the voice signal output that microphone picks up from the output earphone, the signal of recorder or the output of other signal source can also exported earphone output simultaneously.
The utility model is to realize like this, with user's voice, import an amplifying circuit into by the input microphone, import ear into by amplifying circuit output earphone and carry out mnemonic(al), and draw input lead at output earphone two ends, this lead other end connects one or three stamen plugs, inserts the output of external signal source, as the recorder output socket, just external signal can be with user's voice by the output of output earphone.
The utility model also can be closed amplifying circuit, exports the external signal source signal separately.
The utility model also can break away from the external signal source, promptly pulls the plug out of the socket, and exports user's voice signal separately.
The utility model plug also can insert the external Microphone of recorder when amplifying circuit is worked, voice signal is imported recorder record.
Utility model output earphone can be dual track, as Fig. 1, can be between (1,2) of plug cross-over connection one single-pole double-throw switch (SPDT) (4).Switch is allocated to (c), the exportable binaural signal of the utility model; Switch is allocated to (d), two earphones serial connection, and the still playback simultaneously of two earphones was a mono headset when plug inserted two stamen sockets.
By as can be seen above-mentioned, the function that the utility model combines mnemonic device, earphone, microphone is an one, outstanding feature is external signals such as voice signal and recorder, broadcast receiver or electronic musical instrument can be blended in the output earphone to export, mnemonic(al) and strong sound can carry out simultaneously, the mnemonic device of only exporting the sound of blaming oneself at present has better mnemonic(al) effect, and uses convenient.The utility model also can be separately uses as mnemonic device or earphone, can be used as that external microphone carries out the outer record of recorder and with exporting headphone monitor.When the utility model uses as earphone, not only be applicable to dual track output, be suitable for monophony output again, solved general dual-channel headphone has only the playback of an earphone stamen when inserting two stamen sockets problem.
In the accompanying drawing, Fig. 1 be in the utility model with the winding diagram of the switch that is connected of output earphone at circuit; Fig. 2 is a utility model embodiment circuit diagram; Fig. 3 is embodiment circuit board and winding diagram; Fig. 4 is line and output line layout between the output earphone two earphone stamens; Fig. 5 is embodiment profile layout and two earphone internal structure end views; Fig. 6 is the right earphone rearview.
Embodiment circuit diagram such as Fig. 3, present embodiment adorn an amplifying circuit in the earmuff of wear-type dual-channel headphone placement earphone stamen, with one section flexible metal conduit, draw microphone and pick up user's voice signal.Circuit is three pipe amplifying circuits.K switch
1(3) be allocated to (a) and locate, the amplifying circuit power connection, Electret condenser microphone S changes voice signal into the signal of telecommunication, and this signal is through BG
1, BG
2After the multiple tube of forming amplifies, through capacitor C
1Be coupled to BG
3Base stage carry out power amplification, by being connected on BG
3The output earphone EJ of collector loop
1, EJ
2Output.In the circuit, R
1, R
3Be biasing resistance, R
4Be current-limiting resistance, to weaken the input intensity of external signal.Capacitor C
2Be shunt capacitance, the noise during with the minimizing circuit working in the earphone.
When amplifying circuit is worked, i.e. K
1(3) be allocated to (a) and locate, three stamen plug CT insert a certain signal source, and external signal is just through R
4Add BG
3Input, by the output of output earphone, promptly remove external signal as if dial-out CT this moment to the voice signal after amplification together together, and the output earphone has just only been exported through the voice signal of circuit amplification.By circuit diagram as can be seen, work as K
1(3) be allocated to (b) and locate, cut off the amplifying circuit power supply, amplifying circuit quits work, and output earphone EJ
1, EJ
2Form the closed-loop path with CT, this moment, device can be done set of headphones use.
By circuit diagram 3 also as can be seen, when amplifying circuit is worked, CT is inserted the external Microphone of recorder, this device can amplify voice signal back input recorder to be recorded, and replaces microphone.
Among the embodiment, a single-pole double-throw switch (SPDT) K is set
2(4).As Fig. 1, when CT inserts dual track external signal source, as stereo cassette player three stamen sockets, K
2(4) dial in (c), for external signal, EJ
1, EJ
2Parallel connection, this device are a secondary dual-channel headphone; Work as K
2(4) place (d) to locate, three stamen plugs (1,2) short circuit, CT is equivalent to two stamen plugs, the series connection of two earphones, this device output earphone is again a monophony, can make the playback simultaneously of two earphones when inserting two stamen monophony sockets.
In sum, the utility model has following function:
1, K
1(3) be allocated to (a), CT is unsettled, installs to be the earphone-type mnemonic device.
2, K
1(3) be allocated to (a), K
2(4) be allocated to (d), CT inserts external signal source earphone output socket, and this device can be exported voice signal and strong sound or audio signal simultaneously.
3, K
1(3) be allocated to (a), K
2(4) be allocated to (d), CT inserts the external microphone input of recorder socket, and device replaces microphone to carry out outer record, and available output headphone monitor.
4, K
1(3) place (b), this device can be made a set of headphones and use.K
2When (4) being allocated to (c) dual track, K
2It when (4) being allocated to (d) monophony.
The present embodiment circuit is less demanding to element, but component size should be less, and among Fig. 2, E is No. 7 batteries of two joints, K
1, K
2Be miniature single-pole double-throw switch (SPDT), S is the electric capacity Electret condenser microphone, can select CRZ2-56 for use, BG
1～BG
3Be 3AX31, C
1Be 10 microfarads/6.3V electrochemical capacitor, C
2Capacity is 0.01 microfarad.Resistance is 1/8W, R
2Be 470 Ω, R
3Be 5.6K, R
4Be 39 Ω, R
1For about 10K, can make output maximum, the most clear getting final product.CT can select the three stamen plugs of Φ 3.5 for use.EJ
1, EJ
2Be 8 Ω moving-coil earphones.
Fig. 3 is the printed circuit board (PCB) and the wiring circle of present embodiment, and for reducing volume, element is put shortlyer as far as possible.During assembling, two batteries and EJ in the circuit
2Be placed in the left headset ear shell, circuit board and other element are placed in the right earphone earmuff, draw microphone with one section flexible metal conduit, regulate microphone and mouth apart from the may command voice at the volume of exporting earphone, CT is drawn by input lead.Among the figure, 5-left side earphone winding diagram, 6-right earphone winding diagram, 7,8,9-connects the lead between two earphones, these three leads and two input lead plying are enclosed within two plastic flexible pipes, as Fig. 4, among Fig. 4, line between 10-two earphones, 11-input lead, 12-plastic flexible pipe.
Among Fig. 5,13-earphone headring, headset ear shell side, 14-left side sectional plane, 15-right earphone earmuff side sectional view, 16-ear pad, 17-moving-coil earphone stamen, 18-battery, 19-circuit board and element, 20-flexible metal conduit, 21-microphone, 22-three stamen plugs.Two earphone cover bonnets should be able to be opened easily, so that change battery or maintenance.
Another embodiment can be placed on magnification circuit plate, battery etc. outside the earmuff, will export the earphone welding or insert amplifying circuit by plug, draws an input lead in addition.
Claims (3)
1, a kind of electronics mnemonic device, comprising input microphone (21), electronic amplification circuit, output earphone (17) or earphone input socket, input microphone (21) is at input amplifier, output earphone (17) or earphone input socket are exported as amplifying circuit, it is characterized in that exporting earphone (17) two ends and draw input lead (11), this lead other end is connected with three stamen plugs (22).
2, device according to claim 1, it is characterized in that exporting earphone is wear-type, circuit board, element and battery are placed in the output headset ear shell.
3, device according to claim 1 is characterized in that circuit board, element and battery are outside the output headset ear shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92202288 CN2138868Y (en) | 1992-02-07 | 1992-02-07 | Ear phone mnemonic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92202288 CN2138868Y (en) | 1992-02-07 | 1992-02-07 | Ear phone mnemonic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2138868Y true CN2138868Y (en) | 1993-07-21 |
Family
ID=33761269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92202288 Expired - Fee Related CN2138868Y (en) | 1992-02-07 | 1992-02-07 | Ear phone mnemonic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2138868Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053550C (en) * | 1997-01-03 | 2000-06-14 | 固昌有限公司 | Separable ear hook for ear plug type earphone |
-
1992
- 1992-02-07 CN CN 92202288 patent/CN2138868Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053550C (en) * | 1997-01-03 | 2000-06-14 | 固昌有限公司 | Separable ear hook for ear plug type earphone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |