CN207319698U - A kind of device with data storage and phonetic entry - Google Patents
A kind of device with data storage and phonetic entry Download PDFInfo
- Publication number
- CN207319698U CN207319698U CN201720967738.4U CN201720967738U CN207319698U CN 207319698 U CN207319698 U CN 207319698U CN 201720967738 U CN201720967738 U CN 201720967738U CN 207319698 U CN207319698 U CN 207319698U
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- Prior art keywords
- resistance
- capacitance
- circuit
- phonetic entry
- data storage
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Abstract
The utility model discloses a kind of device with data storage and phonetic entry, including device body, audio collection port is equipped with device body, power switch, built in hardware circuit, power source charges mouth, display screen, loudspeaker, volume knob, protection network, storage battery is equipped with built-in hardware circuit, microcontroller, display module, data interface module, memory module, mobile network module, A D modular converters, preamplifier, bandwidth-limited circuit, audio collection circuit, present apparatus design is reasonable, it is simple in structure, it is easy to carry, the filtered processing of audio signal to collection, noise is filtered and is not compressed storage, make the audio signal of storage undistorted.
Description
Technical field
Voice storage device technical field is the utility model is related to, is specially a kind of with data storage and phonetic entry
Device.
Background technology
With the fast development of electronics industry, electronic product plays more and more important effect, mesh in people's lives
Before, most portable numerical digit electronic product and equipment all have the function of voice, recording playback, call etc., such as mobile phone,
PMP, MP4, MP3, digital camera etc..These have the function of that the product of voice recording all has speech input device.In general,
Speech input device include sound collection circuit (i.e. Microphone), audio codec and positioned at the Microphone and
It is used for the input circuit filtered between the audio codec.
Microphone and audio codec have individual devices, develop comparative maturity at present, if user is using high
The Microphone and audio codec of quality, can improve the quality of speech input device, but certainly will increase cost.To defeated
The quality of speech input device can equally be improved by entering the improvement of circuit, and therefore, it is to improve phonetic entry dress to improve input circuit
Put the preferable method of quality.
Utility model content
It is easy to carry the purpose of this utility model is to provide a kind of simple in structure, the transmission of voice data also relatively side
Just, to the filtered processing of audio signal of collection, noise is filtered and is not compressed storage, believes the audio of storage
A kind of number distortionless device with data storage and phonetic entry, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical solution：One kind carries data storage and phonetic entry
Device, including device body, the front of described device body be equipped with display screen, and the lower section of the display screen is equipped with loudspeaker,
The left lateral sides of described device body are equipped with power switch, and the lower section of the power switch is equipped with volume knob, the sound
The lower section of amount regulation button is equipped with power source charges mouth, and the top of device body is equipped with audio collection port, the audio collection end
The outer layer of mouth is equipped with protection network, and protection network is semicircle arcuation, and described device body is internally provided with built in hardware circuit.
Preferably, the audio collection port is equipped with antinoise cavity, and antinoise cavity is hollow cylinder.
Preferably, the built in hardware circuit is equipped with storage battery, and one end of the storage battery is equipped with microcontroller, the list
The side of piece machine is equipped with display module, and the other end of the microcontroller is equipped with data interface module, storage hard disk, mobile network mould
Block, the other end of the microcontroller are connected with one end of A D modular converters, the other end and the preceding storing of the A D modular converters
Big device, bandwidth-limited circuit connection, the preamplifier, the other end of bandwidth-limited circuit are connected with audio collection circuit.
Preferably, it is equipped with USB port among the bottom of described device body.
Preferably, the bandwidth-limited circuit is equipped with first resistor, one end of the first resistor and the first capacitance
One end connects, and the in-phase output end of the other end of first capacitance and operational amplifier connects, the operational amplifier it is anti-
Phase input terminal is connected with one end of the 5th resistance, and one end of the other end of the 5th resistance and second resistance connects, and described the
The other end of two resistance is connected with one end of the second capacitance, and the other end of second capacitance is connected with one end of the 4th resistance,
The other end of 4th resistance is connected with one end of the 5th resistance, a both ends 3rd resistor in parallel for the 4th resistance,
The output terminal of the operational amplifier is connected with one end of the 4th capacitance, and the other end of the 4th capacitance is connected with power supply, institute
State the positive terminal ground connection of operational amplifier, the voltage of the negative pole end connection 3V-30V of operational amplifier.
Preferably, the audio collection circuit is equipped with the 6th resistance, one end of the 6th resistance and the cathode of loudspeaker
Connection, the anode of the loudspeaker and the emitter of triode connect, and the base stage of the triode is connected with one end of the 5th capacitance,
Node connection between the other end and the 6th resistance and loudspeaker of 5th capacitance, between the 5th capacitance and triode
Node is connected with one end of the 7th resistance, and the other end of the 7th resistance and the collector of triode connect, the 7th electricity
The other end of resistance is connected with one end of the 6th capacitance, and one of the node and the 8th resistance between the 6th capacitance and the 7th resistance
End connection, the other end of the 8th resistance are connected with power supply.
Compared with prior art, the beneficial effects of the utility model are：
Present apparatus design is reasonable, and simple in structure, easy to carry, the transmission of voice data is also more convenient, to the sound of collection
The filtered processing of frequency signal, noise is filtered and is not compressed storage, makes the audio signal of storage undistorted.
Brief description of the drawings
Fig. 1 is the utility model device body structure diagram；
Fig. 2 is the utility model built in hardware circuit diagram；
Fig. 3 is the utility model bandwidth-limited circuit schematic diagram；
Fig. 4 is the utility model audio collection circuit diagram.
In figure：1st, device body；2nd, audio collection port；3rd, power switch；4th, built in hardware circuit；5th, power source charges
Mouthful；6th, display screen；7th, loudspeaker；8th, volume knob；9th, protection network；10th, storage battery；11st, microcontroller；12nd, display module；
13rd, data interface module；14th, memory module；15th, mobile network module；16th, A D modular converters；17th, preamplifier；18th, band
Bandpass filter circuit；19th, audio collection circuit；20th, first resistor；21st, second resistance；22nd, the first capacitance；23rd, the second capacitance；
24th, 3rd resistor；25th, the 4th resistance；26th, the 5th resistance；27th, operational amplifier；28th, the 3rd capacitance；29th, the 4th capacitance；
30th, the 6th resistance；31st, loudspeaker；32nd, the 5th capacitance；33rd, triode；34th, the 7th resistance；35th, the 8th resistance；36th, the 6th electricity
Hold.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model provides a kind of technical solution：A kind of dress with data storage and phonetic entry
Put, including device body 1, the bottom centre of device body 1 are equipped with USB ports, USB port uses the interface of 3.0 standards, dress
The front for putting body 1 is equipped with display screen 6, and the lower section of display screen 6 is equipped with loudspeaker 7, and the left lateral sides of device body 1 are equipped with electricity
Source switch 3, the lower section of power switch 3 are equipped with volume knob 8, and the lower section of volume knob 8 is equipped with power source charges mouth 5,
The top of device body 1 is equipped with audio collection port 2, and audio collection port 2 is equipped with antinoise cavity, and antinoise cavity is sky
Heart cylinder, the outer layer of audio collection port 2 are equipped with protection network 9, and protection network 9 is semicircle arcuation, and being internally provided with for device body 1 is interior
Put hardware circuit 4.
Referring to Fig. 2, built in hardware circuit 4 is equipped with storage battery 10, one end of storage battery 10 is equipped with microcontroller 11, monolithic
The side of machine 11 is equipped with display module 12, and the other end of microcontroller 11 is equipped with data interface module 13, storage hard disk 14, mobile network
Module 15, the other end of microcontroller 11 and A one end of D modular converters 16 be connected, A D modular converters 16 the other end with it is preposition
Amplifier 17, bandwidth-limited circuit 18 connect, preamplifier 17, the other end of bandwidth-limited circuit 18 and audio collection circuit
19 connections.
Referring to Fig. 3, bandwidth-limited circuit 18 is equipped with first resistor 20, one end of first resistor 20 and the first capacitance
22 one end connection, the other end of the first capacitance 22 are connected with the in-phase output end of operational amplifier 27, operational amplifier 27
Inverting input is connected with one end of the 5th resistance 26, and the other end of the 5th resistance 26 is connected with one end of second resistance 21, the
The other end of two resistance 21 is connected with one end of the second capacitance 23, and the other end of the second capacitance 23 and one end of the 4th resistance 25 connect
Connect, the other end of the 4th resistance 25 is connected with one end of the 5th resistance 26, a both ends 3rd resistor in parallel for the 4th resistance 25
24, the output terminal of operational amplifier 27 is connected with one end of the 4th capacitance 29, and the other end of the 4th capacitance 29 is connected with power supply, fortune
Calculate the positive terminal ground connection of amplifier 27, the voltage of the negative pole end connection 3V-30V of operational amplifier 27.
Referring to Fig. 4, audio collection circuit 19 is equipped with the 6th resistance 30, one end and the loudspeaker 31 of the 6th resistance 30
Cathode connects, and the anode of loudspeaker 31 is connected with the emitter of triode 33, and triode 33 is using the three of model 2N3904 signals
Pole pipe, the base stage of triode 33 are connected with one end of the 5th capacitance 32, and the 5th capacitance 32 uses 0.1uF specifications, the 5th capacitance 32
The other end and the 6th resistance 30 and loudspeaker 31 between node connection, between the 5th capacitance 32 and triode 33 of K specifications
Node is connected with one end of the 7th resistance 34, and the other end of the 7th resistance 34 is connected with the collector of triode 33, the 7th resistance
34 other end is connected with one end of the 6th capacitance 36, node and the 8th resistance 35 between the 6th capacitance 36 and the 7th resistance 34
One end connection, the other end of the 8th resistance 35 is connected with power supply.
Present apparatus design is reasonable, and simple in structure, easy to carry, the transmission of voice data is also more convenient, to the sound of collection
The filtered processing of frequency signal, noise is filtered and is not compressed storage, makes the audio signal of storage undistorted.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of device with data storage and phonetic entry, including device body (1), it is characterised in that：Described device sheet
The front of body (1) is equipped with display screen (6), and the lower section of the display screen (6) is equipped with loudspeaker (7), a left side for described device body (1)
Side side is equipped with power switch (3), and the lower section of the power switch (3) is equipped with volume knob (8), and the volume adjustment is pressed
The lower section of button (8) is equipped with power source charges mouth (5), and the top of device body (1) is equipped with audio collection port (2), and the audio is adopted
The outer layer of collection port (2) is equipped with protection network (9), and protection network (9) is semicircle arcuation, and being internally provided with for described device body (1) is interior
Put hardware circuit (4).
A kind of 2. device with data storage and phonetic entry according to claim 1, it is characterised in that：The audio
Collection port (2) is equipped with antinoise cavity, and antinoise cavity is hollow cylinder.
A kind of 3. device with data storage and phonetic entry according to claim 1, it is characterised in that：It is described built-in
Hardware circuit (4) is equipped with storage battery (10), and one end of the storage battery (10) is equipped with microcontroller (11), the microcontroller (11)
Side be equipped with display module (12), the other end of the microcontroller (11) is equipped with data interface module (13), storage hard disk
(14), mobile network module (15), the other end of the microcontroller (11) and A one end of D modular converters (16) be connected, the A D
The other end of modular converter (16) is connected with preamplifier (17), bandwidth-limited circuit (18), the preamplifier (17),
The other end of bandwidth-limited circuit (18) is connected with audio collection circuit (19).
A kind of 4. device with data storage and phonetic entry according to claim 1, it is characterised in that：Described device
USB port is equipped among the bottom of body (1).
A kind of 5. device with data storage and phonetic entry according to claim 3, it is characterised in that：The band logical
Filter circuit (18) is equipped with first resistor (20), and one end of the first resistor (20) connects with one end of the first capacitance (22)
Connect, the other end of first capacitance (22) is connected with the in-phase output end of operational amplifier (27), the operational amplifier
(27) inverting input is connected with one end of the 5th resistance (26), the other end and second resistance of the 5th resistance (26)
(21) one end connection, the other end of the second resistance (21) are connected with one end of the second capacitance (23), second capacitance
(23) the other end is connected with one end of the 4th resistance (25), the other end of the 4th resistance (25) and the 5th resistance (26)
One end connects, a both ends 3rd resistor (24) in parallel for the 4th resistance (25), the output of the operational amplifier (27)
End is connected with one end of the 4th capacitance (29), and the other end of the 4th capacitance (29) is connected with power supply, the operational amplifier
(27) positive terminal ground connection, the voltage of the negative pole end connection 3V-30V of operational amplifier (27).
A kind of 6. device with data storage and phonetic entry according to claim 3, it is characterised in that：The audio
Acquisition Circuit (19) is equipped with the 6th resistance (30), and one end of the 6th resistance (30) is connected with the cathode of loudspeaker (31), institute
The anode for stating loudspeaker (31) is connected with the emitter of triode (33), base stage and the 5th capacitance (32) of the triode (33)
One end connects, and the other end of the 5th capacitance (32) is connected with the 6th resistance (30) with the node between loudspeaker (31), described
Node between 5th capacitance (32) and triode (33) is connected with one end of the 7th resistance (34), the 7th resistance (34)
The other end is connected with the collector of triode (33), and the other end of the 7th resistance (34) and one end of the 6th capacitance (36) connect
Connecing, the 6th capacitance (36) is connected with the node between the 7th resistance (34) with one end of the 8th resistance (35), and the described 8th
The other end of resistance (35) is connected with power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720967738.4U CN207319698U (en) | 2017-08-04 | 2017-08-04 | A kind of device with data storage and phonetic entry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720967738.4U CN207319698U (en) | 2017-08-04 | 2017-08-04 | A kind of device with data storage and phonetic entry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207319698U true CN207319698U (en) | 2018-05-04 |
Family
ID=62434145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720967738.4U Expired - Fee Related CN207319698U (en) | 2017-08-04 | 2017-08-04 | A kind of device with data storage and phonetic entry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207319698U (en) |
-
2017
- 2017-08-04 CN CN201720967738.4U patent/CN207319698U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180504 Termination date: 20180804 |
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| CF01 | Termination of patent right due to non-payment of annual fee |