CN201479334U - Digital sound box using electric-power line for transmitting information - Google Patents
Digital sound box using electric-power line for transmitting information Download PDFInfo
- Publication number
- CN201479334U CN201479334U CN2009203059764U CN200920305976U CN201479334U CN 201479334 U CN201479334 U CN 201479334U CN 2009203059764 U CN2009203059764 U CN 2009203059764U CN 200920305976 U CN200920305976 U CN 200920305976U CN 201479334 U CN201479334 U CN 201479334U
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- power line
- electric
- information
- sound box
- digital sound
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Abstract
The utility model discloses a digital sound box using an electric-power line for transmitting information, in particular to a digital sound box using an electric-power line for receiving audio signals. In order to solve the technical problem, the utility model has the technical scheme that the digital sound box comprises a plug, a box body, a loudspeaker and an electronic device, wherein the plug is connected with the electric-power line, the electronic device comprises an electric-power line network bridge connection module group, a processor, a decoder, a D/A converter, a power amplifier, a liquid crystal display controller and a liquid crystal display, the electric-power line network bridge connection module group is connected with the electric-power line and can receive digital information on the electric-power line, the processor is connected with the electric-power line network bridge connection module group and is used for coordinating and processing various data, the decoder is connected with the processor and is used for decoding the received audio compression information, and the D/A converter is connected with the decoder and is used for converting the received digital signals into audio analog signals for driving the loudspeaker. The utility model realizes the receiving of media signals of the digital sound box through the electric-power line, shares an information passage and a power supply passage, simplifies the installation of the digital sound box, avoids the connection of various signals wires, and reflects the future development direction of household electrical appliances.
Description
Technical field
The utility model relates to a kind of digital audio amplifier with power line transmission information, belongs to tame electro-technical field.
Background technology
Audio amplifier is widely used in the family as effective audio output apparatus, but traditional audio amplifier need connect power line and tone frequency channel wire, and can only supply with an equipment and use, and such as after being connected to television set, just can not give computer, and CD player has used.Switch playback equipment if desired, just must move a position, and reconnect power supply and tone frequency channel wire to audio amplifier.Like this, cause use very inconvenient, and cause the audio amplifier utilization rate not high.
Summary of the invention
The purpose of this utility model is in order to overcome weak point of the prior art, a kind of digital audio amplifier that carries out the reception of audio signal by power line to be provided.This scheme is carried out the reception of media signal by power line, and information channel and power channel are shared, has simplified the installation of audio amplifier, has exempted the connection of various holding wires, has embodied the direction of following household electrical appliances development.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of digital audio amplifier with power line transmission information comprises the plug that connects power line, and casing, loudspeaker and electronic installation, described electronic installation comprise,
-power line network bridge joint module is connected with power line, can receive the digital information on the power line;
-processor is connected with described power line network bridge joint module, is used for coordinating and handling various data;
-decoder is connected with described processor, is used for the audio compression information that receives is decoded;
-D/A converter is connected with described decoder, converts the digital signal that receives to audio analog signals;
-power amplifier is connected with described D/A converter, is used to amplify audio analog signals, drives loud speaker;
-LCD controller is connected with described processor, is used to drive liquid crystal display;
-LCD with described LCD controller, is used to information of displaying the play and state information.
The beneficial effects of the utility model mainly show: 1, carry out the media information transmission by power line, and easy for installation, saved many holding wires; 2, can realize the shared audio amplifier of multiple devices.
Description of drawings
Fig. 1 is the cut-away view with the digital audio amplifier of power line transmission information;
Fig. 2 is the system construction drawing with the digital audio amplifier of power line transmission information.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1-2, a kind of digital audio amplifier with power line transmission information comprises the plug that connects power line, casing, loudspeaker and electronic installation.
Described electronic installation comprises:
-power line network bridge joint module 1 is connected with power line by plug, can receive the digital information on the power line, can send digital information to power line simultaneously.This module adopts the power line transmission technology, and the high-frequency signal of carrying information is loaded on electric current, and with the electric wire transmission, the module of receiving information is separated high-frequency information again from electric current, and is sent to terminal, transmits with realization information then.
-processor 2 is connected with described power line network bridge joint module 1, is used for coordinating and handling various data.This device can adopt digital signal processor at a high speed, and inside is provided with the memory of storage identity identification information.When processor 2 when described power line network bridge joint module 1 obtains data, identity identification information that at first will be wherein compares with identity identification information in the memory of processor 2, if identical, just can remove to receive corresponding data.
-decoder 3 is connected with described processor 2, is used for the audio compression information that receives is decoded.In order to improve efficiency of transmission, audio-frequency information is all through overcompression, and audio compressed files is reduced through decoder 3.
-D/A converter 4 is connected with described decoder 3, converts the digital signal that receives to audio analog signals.Signal before this all is a digital signal, and it is strong that digital signal has an antijamming capability, the characteristics that are easy to transmit, but digital signal can not directly drive external equipment.Therefore, decoder 3 will reduce later audio-frequency information and send D/A converter 4 to, convert digitized audio message to analog signal.
-power amplifier 5 is connected with described D/A converter 4, is used to amplify audio analog signals, drives loud speaker 5.Very low from the analog signal amplitude of described D/A converter 4 outputs, be not enough to drive loud speaker 5, need on power grade, to improve through power amplifier 5, satisfy the driving requirement of loud speaker 5.
-LCD controller 7 is connected with described processor 2, is used to drive liquid crystal display.Liquid crystal is the display device that utilizes electric field driven, have unique sequential and magnitude of voltage, and processor 2 does not possess such ability, therefore adopts LCD controller 7 to be connected with LCD 8.
-LCD 8 with described LCD controller 7, is used to information of displaying the play and state information, such as play content, and reproduction time, medium author, the column diagram of audio signal.
In sum, this utility model adopts power line network bridge joint module based on power line transmission audio frequency signal, has exempted the connection of various tone frequency channel wires, and can use for multiple devices, need not mobile audio amplifier position.Specifically in use, only need as shown in Figure 2, the equipment that television set, computer etc. is had a power line transmission function is connected into power line and gets final product.
Claims (1)
1. the digital audio amplifier with power line transmission information comprises the plug that connects power line, casing, and loudspeaker and electronic installation is characterized in that described electronic installation comprises,
-power line network bridge joint module is connected with power line, can receive the digital information on the power line;
-processor is connected with described power line network bridge joint module, is used for coordinating and handling various data;
-decoder is connected with described processor, is used for the audio compression information that receives is decoded;
-D/A converter is connected with described decoder, converts the digital signal that receives to audio analog signals;
-power amplifier is connected with described D/A converter, is used to amplify audio analog signals, drives loud speaker;
-LCD controller is connected with described processor, is used to drive liquid crystal display;
-LCD with described LCD controller, is used to information of displaying the play and state information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203059764U CN201479334U (en) | 2009-07-10 | 2009-07-10 | Digital sound box using electric-power line for transmitting information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203059764U CN201479334U (en) | 2009-07-10 | 2009-07-10 | Digital sound box using electric-power line for transmitting information |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201479334U true CN201479334U (en) | 2010-05-19 |
Family
ID=42415589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203059764U Expired - Fee Related CN201479334U (en) | 2009-07-10 | 2009-07-10 | Digital sound box using electric-power line for transmitting information |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201479334U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664034A (en) * | 2012-05-14 | 2012-09-12 | 慈溪迈思特电子科技有限公司 | Family cinema system based on power line network |
| CN103217938A (en) * | 2013-01-09 | 2013-07-24 | 北京卓越信通电子股份有限公司 | Control system for achieving voice frequency remote access and playback |
| CN103391489A (en) * | 2012-05-09 | 2013-11-13 | 深圳市三诺电子有限公司 | Power carrier sound box device and control system thereof |
-
2009
- 2009-07-10 CN CN2009203059764U patent/CN201479334U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391489A (en) * | 2012-05-09 | 2013-11-13 | 深圳市三诺电子有限公司 | Power carrier sound box device and control system thereof |
| CN102664034A (en) * | 2012-05-14 | 2012-09-12 | 慈溪迈思特电子科技有限公司 | Family cinema system based on power line network |
| CN103217938A (en) * | 2013-01-09 | 2013-07-24 | 北京卓越信通电子股份有限公司 | Control system for achieving voice frequency remote access and playback |
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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: 20100519 Termination date: 20100710 |