CN209087402U - A kind of DVD player bluetooth-capable - Google Patents
A kind of DVD player bluetooth-capable Download PDFInfo
- Publication number
- CN209087402U CN209087402U CN201821429254.5U CN201821429254U CN209087402U CN 209087402 U CN209087402 U CN 209087402U CN 201821429254 U CN201821429254 U CN 201821429254U CN 209087402 U CN209087402 U CN 209087402U
- Authority
- CN
- China
- Prior art keywords
- bluetooth
- dsp
- dvd
- read module
- audio
- 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 a kind of DVD players bluetooth-capable, including player casing, audio plays loudspeaker, DVD read module, governor circuit panel and display module, audio plays loudspeaker, DVD read module and governor circuit panel are mounted on player casing, governor circuit panel is welded with microprocessing unit, microprocessing unit respectively with DVD read module, display panel module and audio play loudspeaker and are electrically connected to realize that data are transmitted, governor circuit panel is welded with bluetooth output unit, microprocessing unit and bluetooth output unit are electrically connected to control the on-off of bluetooth output unit, bluetooth output unit is equipped with DSP modulation circuit and Bluetooth transmission circuit, the audio output of DSP modulation circuit and DVD read module is electrically connected to be converted to the audio signal for exporting DVD read module Bluetooth transmission signal, DSP modulation circuit and Bluetooth transmission circuit are electrically connected exporting Bluetooth transmission signal to external bluetooth equipment.
Description
Technical field
The utility model relates to DVD player technical fields, play more particularly to a kind of DVD bluetooth-capable
Device.
Background technique
DVD player is a kind of for playing the portable product of DVD, current existing DVD player usually with one
Liquid crystal display is combined, and exports audio equipped with built-in loudspeaker, or answer audio using wired earphone, and DVD is played
Governor circuit panel is installed in device, governor circuit panel is welded with microprocessing unit, and microprocessing unit reads mould with DVD respectively
Block and display panel module are electrically connected, but above-mentioned due to the propagation distance of sound and the finiteness of earphone line length, are limited
For user at a distance from DVD player, it is very inconvenient to operate.
Utility model content
To solve the above problems, the utility model provides a kind of DVD player bluetooth-capable, it is easy to use,
Design is simple.
To solve above-mentioned purpose, the following technical solution that the utility model uses.
A kind of DVD player bluetooth-capable, including player casing, audio play loudspeaker, DVD read module,
Governor circuit panel and display module, audio play loudspeaker, DVD read module and governor circuit panel and are mounted on player shell
Body, governor circuit panel are welded with microprocessing unit, microprocessing unit respectively with DVD read module, display panel module and audio
Loudspeaker are played to be electrically connected to realize that data are transmitted, governor circuit panel is also welded with bluetooth output unit, microprocessing unit with
Bluetooth output unit is electrically connected to control the on-off of bluetooth output unit, and bluetooth output unit is equipped with DSP modulation circuit and indigo plant
The audio output of tooth transmit circuit, DSP modulation circuit and DVD read module is electrically connected to export DVD read module
Audio signal is converted to Bluetooth transmission signal, and DSP modulation circuit and Bluetooth transmission circuit are electrically connected with by Bluetooth transmission signal
It exports to external bluetooth equipment.
As the further scheme of the utility model, DSP modulation circuit is equipped with DSP and modulates chip, and DSP modulates the of chip
One input pin and the second input pin are electrically connected with the two-way audio output end of DVD read module respectively reads mould with DVD
The audio signal of block output is conveyed to DSP modulation chip.
As the further scheme of the utility model, the audio output all the way and DSP of DVD read module modulate chip
First capacitor, first resistor and the second capacitor, the another way audio output of DVD read module are in series between first input pin
Third capacitor, second resistance and the 4th capacitor are in series between end and the second input pin of DSP modulation chip.
As the further scheme of the utility model, Bluetooth transmission circuit is equipped with Bluetooth transmission antenna, 3rd resistor and the
Four resistance, DSP modulate chip the first output pin series connection 3rd resistor after with Bluetooth transmission antenna be electrically connected, DSP modulation
It is electrically connected after the second output pin the 4th resistance of series connection of chip with Bluetooth transmission antenna.
The beneficial effects of the utility model are as follows:
Compared with prior art, this DVD player has additional bluetooth output function, the audio output of DVD read module
It is connected directly to DSP modulation circuit, the modulates audio signals of input at Bluetooth transmission signal, and are passed through indigo plant by DSP modulation circuit
Tooth transmit circuit is transmitted to external bluetooth equipment, realizes wireless listening function, and circuit design is simple, at low cost, and passes through bluetooth
Wireless mode is listened to, and use is more convenient, and user experience is more preferable.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is the schematic block circuit diagram of the utility model；
Fig. 3 is the circuit diagram of the bluetooth output unit of the utility model.
Specific embodiment
The utility model is further described below in conjunction with attached drawing.
Referring to figs. 1 to Fig. 3, a kind of DVD player bluetooth-capable, including player casing 1, audio play loudspeaker
2, DVD read module 3, governor circuit panel 5 and display module 4, audio play loudspeaker 2, DVD read module 3 and governor circuit
Panel 5 is mounted on player casing 1, and governor circuit panel 5 is welded with microprocessing unit 51, microprocessing unit 51 respectively with
DVD read module 3, display panel module and audio play loudspeaker 2 and are electrically connected to realize that data are transmitted, and governor circuit panel 5 is also
It is welded with bluetooth output unit 52, microprocessing unit 51 and bluetooth output unit 52 are electrically connected to control bluetooth output unit 52
On-off, bluetooth output unit 52 is equipped with DSP modulation circuit 521 and Bluetooth transmission circuit 522, DSP modulation circuit 521 and DVD
The audio output of read module 3, which is electrically connected, is converted to Bluetooth transmission letter with the audio signal for exporting DVD read module 3
Number, DSP modulation circuit 521 and Bluetooth transmission circuit 522 are electrically connected exporting Bluetooth transmission signal to external bluetooth equipment,
Compared with prior art, this DVD player has additional bluetooth output function, and the audio output of DVD read module 3 is directly connected to
To DSP modulation circuit 521, the modulates audio signals of input at Bluetooth transmission signal, and are passed through bluetooth by DSP modulation circuit 521
Transmit circuit 522 is transmitted to external bluetooth equipment, realizes wireless listening function, and circuit design is simple, at low cost, and passes through bluetooth
Wireless mode is listened to, and use is more convenient, and user experience is more preferable.
Fig. 3 is shown, and the DSP modulation circuit 521 of the present embodiment is equipped with DSP and modulates chip U1, and DSP modulates the first of chip U1
Input pin and the second input pin are electrically connected respectively with the two-way audio output end of DVD read module 3 with DVD read module
The audio signal of 3 outputs is conveyed to DSP modulation chip U1, and the model of DSP modulation chip U1 is BK6008A core in the present embodiment
Piece, under working condition, the audio signal that DSP modulation chip U1 directly transfers 3 output end of DVD read module is modulated conversion,
Avoid data distortion, Bluetooth transmission signal described in the present embodiment refer to DVD read module 3 export audio signal via
The digital signal that BK6008A chip is modulated into, referring to Fig. 3, the audio output all the way of the DVD read module 3 of the present embodiment with
First capacitor C1, first resistor R1 and the second capacitor C2, DVD reading are in series between the first input pin of DSP modulation chip U1
Third capacitor C3, the are in series between the second input pin of another way audio output and DSP modulation the chip U1 of modulus block 3
Two resistance R2 and the 4th capacitor C4 are inputted more stable.
Referring to Fig. 3, Bluetooth transmission circuit 522 is equipped with Bluetooth transmission antenna, 3rd resistor and the 4th resistance, and DSP modulates core
It is electrically connected after the first output pin series connection 3rd resistor R3 of piece U1 with Bluetooth transmission antenna, DSP modulates the second of chip U1
It is electrically connected after the 4th resistance R4 of output pin series connection with Bluetooth transmission antenna, DSP modulates chip U1 for DVD read module 3
It after the modulates audio signals of output are at Bluetooth transmission signal, is exported by Bluetooth transmission antenna to external bluetooth equipment, convenient for using
It is listened on bluetooth equipment at family.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (4)
1. a kind of DVD player bluetooth-capable, including player casing, audio play loudspeaker, DVD read module, master
Circuit board and display module are controlled, audio plays loudspeaker, DVD read module and governor circuit panel and is mounted on player shell
Body, governor circuit panel are welded with microprocessing unit, microprocessing unit respectively with DVD read module, display panel module and audio
It plays loudspeaker to be electrically connected to realize that data are transmitted, it is characterised in that: governor circuit panel is also welded with bluetooth output unit, micro-
Processing unit and bluetooth output unit are electrically connected to control the on-off of bluetooth output unit, and bluetooth output unit is equipped with DSP tune
Circuit processed and Bluetooth transmission circuit, DSP modulation circuit and the audio output of DVD read module are electrically connected to read DVD
The audio signal of module output is converted to Bluetooth transmission signal, and DSP modulation circuit and the electric connection of Bluetooth transmission circuit are with will be blue
Tooth transmission signal is exported to external bluetooth equipment.
2. a kind of DVD player bluetooth-capable according to claim 1, it is characterised in that: DSP modulation circuit is set
There is DSP to modulate chip, DSP modulates the first input pin and the second input pin two-way with DVD read module respectively of chip
Audio output, which is electrically connected, is conveyed to DSP modulation chip with the audio signal that DVD read module exports.
3. a kind of DVD player bluetooth-capable according to claim 2, it is characterised in that: DVD read module
First capacitor, first resistor and the second electricity are in series between audio output and the first input pin of DSP modulation chip all the way
Hold, is in series with third electricity between the second input pin of another way audio output and DSP the modulation chip of DVD read module
Appearance, second resistance and the 4th capacitor.
4. a kind of DVD player bluetooth-capable according to claim 1, it is characterised in that: Bluetooth transmission circuit
Equipped with Bluetooth transmission antenna, 3rd resistor and the 4th resistance, DSP modulate after the first output pin series connection 3rd resistor of chip with
Bluetooth transmission antenna be electrically connected, DSP modulate chip the second output pin connect the 4th resistance after with Bluetooth transmission antenna electric
Property connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821429254.5U CN209087402U (en) | 2018-09-01 | 2018-09-01 | A kind of DVD player bluetooth-capable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821429254.5U CN209087402U (en) | 2018-09-01 | 2018-09-01 | A kind of DVD player bluetooth-capable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209087402U true CN209087402U (en) | 2019-07-09 |
Family
ID=67115659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821429254.5U Expired - Fee Related CN209087402U (en) | 2018-09-01 | 2018-09-01 | A kind of DVD player bluetooth-capable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209087402U (en) |
-
2018
- 2018-09-01 CN CN201821429254.5U patent/CN209087402U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190709 |