CN213070618U

CN213070618U - Touch-control type self-adaptive voice audio decoder

Info

Publication number: CN213070618U
Application number: CN202022098145.3U
Authority: CN
Inventors: 王伟峰
Original assignee: Beijing Blue Sky Information Technology Co ltd
Current assignee: Beijing Blue Sky Information Technology Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-04-27
Anticipated expiration: 2030-09-23

Abstract

The utility model discloses a touch-control type self-adaptive voice audio decoder, which comprises an intelligent control unit with a USB interface, a USBHUB chip, a USB interface sound card chip, a keyboard panel and an indicator light unit; a first USB interface of the USBHUB chip is connected with a USB access interface of the equipment; the second USB interface is connected with the USB interface of the intelligent control unit; the third USB interface is connected with the USB interface sound card chip; the keyboard panel is connected with an input interface of the intelligent control unit and used for inputting keyboard instructions; the indicator light unit is connected with the output interface of the intelligent control unit to indicate the state of the equipment. The utility model discloses the selection and switching of the song of the voice teaching material are realized through the touch key on the shell by the touch type self-adaptive voice audio decoder; sending a question signal to a teacher through a hand lifting key; the operation interface is simple and is easy to master by the students in the lower grades; the function is special, and the interference to the teaching activities of students is avoided.

Description

Touch-control type self-adaptive voice audio decoder

Technical Field

The utility model relates to a teaching equipment in meeting room, classroom, especially a touch-control formula self-adaptation pronunciation audio decoder.

Background

In the teaching process, repeated listening and reading are required to be carried out on the voice teaching materials; and communicate with the classroom through the way of holding hands to speak, etc. The network teaching can be realized through a computer and a network system; however, the operation interface of the computer display is complex, the function is complicated, and the attention of students is easily influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a touch-control type self-adaptive voice audio decoder which has novel and unique structure and convenient use and can effectively improve the voice teaching efficiency; the specific technical scheme is as follows:

a touch-control type self-adaptive voice audio decoder comprises an intelligent control unit of a USB interface, a USBHUB chip, a USB interface sound card chip, a keyboard panel and an indicator light unit; a first USB interface of the USBHUB chip is connected with a USB access interface of the equipment; the second USB interface is connected with the USB interface of the intelligent control unit; the third USB interface is connected with the USB interface sound card chip; the keyboard panel is connected with an input interface of the intelligent control unit and used for inputting keyboard instructions; the indicator light unit is connected with the output interface of the intelligent control unit to indicate the state of the equipment.

Further, the keys of the keyboard panel include a left switch key, a right switch key, a play pause key, an MIC key, a return key, and a lift key.

Furthermore, the keys of the keyboard panel are capacitance touch keys or resistance touch keys.

Furthermore, a USB expansion interface is further arranged, and the touch key is connected with a fourth USB interface of the USBHUB chip.

Further, the MIC signal is amplified by an MIC signal amplifier and then is connected with the MIC input end of the USB interface sound card chip.

Further, the longitudinal section of the shell of the touch-control type self-adaptive voice audio decoder is L-shaped; the bottom surface is provided with a screw mounting hole and is fixed on the table top through a screw.

The utility model discloses the selection and switching of the song of the voice teaching material are realized through the touch key on the shell by the touch type self-adaptive voice audio decoder; sending a question signal to a teacher through a hand lifting key; the operation interface is simple and is easy to master by the students in the lower grades; the function is special, and the interference to the teaching activities of students is avoided.

Drawings

Fig. 1 is a schematic diagram of a circuit principle of a touch adaptive speech/audio decoder according to the present invention;

FIG. 2 is a schematic diagram of a circuit of a part of the intelligent control unit;

FIG. 3 is a schematic diagram of a USBHUB chip partial circuit principle;

FIG. 4 is a schematic diagram of a circuit of a sound card chip of a USB interface;

fig. 5 is a schematic structural diagram of the touch adaptive speech audio decoder of the present invention.

In the figure: 1. a housing; 2. a touch panel; 3. a volume adjusting button; 21. a touch key; 11. a speaker interface; 12. an MIC jack; 13. a headset jack; u1 and an intelligent control chip; u2 and a USB interface sound card chip; u3, USBHUB chip.

Detailed Description

The present invention will be more fully described with reference to the following examples. The present invention may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein.

For ease of description, spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1, the touch adaptive speech audio decoder in this embodiment includes an intelligent control unit with a USB interface, a USB ubb chip, a USB interface sound card chip, a keyboard unit, and an indicator light unit; a first USB interface of the USBHUB chip is connected with a USB access interface of the equipment; the second USB interface is connected with the USB interface of the intelligent control unit; the third USB interface is connected with the USB interface sound card chip; the keyboard panel is connected with an input interface of the intelligent control unit and used for inputting keyboard instructions; the indicator light unit is connected with the output interface of the intelligent control unit to indicate the state of the equipment.

The driving circuits of the keyboard unit and the LED lamp unit are all in the prior art, and are not described in detail herein.

As shown in fig. 2 and 4, the intelligent control chip U1 has a USB interface, and USB signal lines are connected to USB signals USB _ DM1 and USB _ DP1 of the USB HUB chip U3; besides the ARM chip TMS32F103 in the figure, the intelligent control chip U1 can also adopt a single chip microcomputer or a DSP chip with a USB interface. The volume adjusting button drives the duplex potentiometer to control the playing volume of the audio output; two way signal input end SW1A and SW1B of double potentiometre are connected with intelligent control chip U1's AD passageway respectively, after obtaining the volume signal, communicate with USB interface sound card chip U2 through USB HUB chip U3, transmit the volume control instruction.

The intelligent control chip U1 should be configured with a reliable reset circuit, such as a reset circuit formed by a conventional MAX810 chip.

The power supply unit of the circuit board should be provided with a filter plate and a protection circuit as required.

As shown in fig. 3 and 4, the USB signal line of the USB interface sound card chip U2 is connected to the USB signals USB _ DM3 and USB _ DP3 of the USB HUB chip; the intelligent control chip U1 communicates with the USB interface sound card chip U2 through the USB HUB chip U3, and sends the processing instructions of song selection, playing, pause and the like to the USB interface sound card chip U2. The USB interface sound card chip U2 can be replaced by CM 118B; other chips of similar functionality may also be used.

The USB interface sound card chip U2 processes the audio data transmitted through the USB channel, digitalizes the MIC signal, and transmits the signal to the computer through the USB channel. The computer in this embodiment is not limited to a PC, and may be an intelligent terminal such as a mobile phone, a PAD, or a network service terminal.

An MIC signal is introduced through the input jack and is connected with the MIC input end of the sound card chip U2; the MIC signal is processed by the sound card chip U2.

The MIC signal is amplified by an MIC signal amplifier and then is connected with the MIC input end of the USB interface sound card chip; the anti-interference capability of the equipment is improved.

And the audio output of the USB interface sound card chip is connected with the output jack of the loudspeaker.

The USB interface of the equipment connected with the computer is connected with the USB signals DM0 and DP0 of the USB HUB chip. A filter is arranged between the USB access interface and USB signals DM0 and DP0 of the USB HUB chip, and the anti-interference capability of the circuit is improved.

The keys of the keyboard panel comprise a left switch key, a right switch key, a play pause key, an MIC key, a return key and a hand lifting key. Wherein the left switch key, the play pause key, the right switch key, the MIC key, the return key and the hand-lifting key are arranged from left to right. And an indicator light is arranged behind each touch key and used for displaying the state after the key pressing. Signals of the left switch key, the play pause key, the right switch key, the MIC key, the return key and the hand lifting key are connected with an intelligent control chip U1 through an I2C interface by a touch control chip (not shown in the figure).

The left shift key indicator light control signal DRV _ PRE, the play pause key control signal DRV _ PLY, the right shift key control signal DRV _ NXT, the MIC key control signal DRV _ MIC, the return key control signal DRV _ RTN and the hands-off key control signal DRV _ REW are respectively connected with a digital output pin of the intelligent control chip U1.

The keys of the keyboard panel are capacitive touch keys or resistive touch keys; the operation is more portable, and life is longer.

The USB expansion interface is further arranged, and the touch key is connected with a fourth USB interface of the USBHUB chip; a USB interface is expanded for the computer, and the USB interface occupied by the touch-control type self-adaptive voice audio decoder is compensated.

The longitudinal section of the shell of the touch-control type self-adaptive voice audio decoder is L-shaped; the bottom surface is provided with a screw mounting hole and is fixed on the table top through a screw. The front panel is inclined, so that the front panel is more in line with the man-machine engineering and more convenient to operate and observe. The inclination angle of the front panel is 50 to 60 degrees.

The loudspeaker interface 11, the MIC jack 12 and the earphone jack 13 are arranged at the bottom end of the side end face of the shell; the earphone with separate microphone and loudspeaker plugs can be used, and the earphone plug of the mobile phone with the microphone and loudspeaker plugs can also be used.

The USB access interface of the touch-control type self-adaptive voice audio decoder is connected to be arranged on a 6-pin locking socket of the circuit board; the USB cable with the 6-hole locking plug is led out from the bottom of the shell. The USB cable is prevented from being pulled out by mistake and is separated from the touch-control type self-adaptive voice audio decoder.

The above examples are only for illustrating the present invention, and besides, there are many different embodiments, which can be conceived by those skilled in the art after understanding the idea of the present invention, and therefore, they are not listed here.

Claims

1. The touch-control type self-adaptive voice audio decoder is characterized by comprising an intelligent control unit of a USB interface, a USBHUB chip, a USB interface sound card chip, a keyboard panel and an indicator light unit; a first USB interface of the USBHUB chip is connected with a USB access interface of the equipment; the second USB interface is connected with the USB interface of the intelligent control unit; the third USB interface is connected with the USB interface sound card chip; the keyboard panel is connected with an input interface of the intelligent control unit and used for inputting keyboard instructions; the indicator light unit is connected with the output interface of the intelligent control unit to indicate the state of the equipment.

2. The touch adaptive speech audio decoder according to claim 1, wherein the keys of the keyboard panel include a left toggle key, a right toggle key, a play pause key, an MIC key, a return key, and a lift key.

3. The touch-based adaptive speech audio decoder of claim 2, wherein the keys of the keyboard panel are capacitive touch keys or resistive touch keys.

4. The touch-based adaptive speech audio decoder according to claim 3, further comprising a USB expansion interface, wherein the capacitive touch key or the resistive touch key is connected to a fourth USB interface of the USBHUB chip.

5. The touch-based adaptive speech audio decoder of claim 1, wherein a MIC signal is amplified by a MIC signal amplifier and then connected to a MIC input terminal of the USB interface sound card chip.

6. The touch-sensitive adaptive speech audio decoder according to claim 1, wherein a longitudinal cross-section of a housing of the touch-sensitive adaptive speech audio decoder is L-shaped; the bottom surface is provided with the screw hole, fixes on the desktop through the screw.