CN2916762Y - Computer audio device with modulated signal emission circuit - Google Patents
Computer audio device with modulated signal emission circuit Download PDFInfo
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- CN2916762Y CN2916762Y CN 200620061083 CN200620061083U CN2916762Y CN 2916762 Y CN2916762 Y CN 2916762Y CN 200620061083 CN200620061083 CN 200620061083 CN 200620061083 U CN200620061083 U CN 200620061083U CN 2916762 Y CN2916762 Y CN 2916762Y
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Abstract
The utility model relates to a computer sound device with modulation signal emission loop comprising a sound processing circuit, a sound signal output loop, and a modulation signal emission loop. The sound processing circuit can receive and process sound data from computer device. The sound signal output loop can receive sound signal from the sound signal output end of the sound processing circuit, and amplify the signals for the play of the playing unit. The modulation signal emission loop can receive sound signal from the sound signal output end of the sound processing circuit, and emit the modulated sound signals in wireless way to remote receivers for playing.
Description
Technical field
The utility model is about a computing machine audio unit, particularly about a kind of computing machine audio unit with modulation signal launching circuit, the voice signal of being exported with the audio signal output terminal mouth of modulating this sound treatment circuit by a modulation signal launching circuit, and with the load mode of wireless transmit voice signal is launched.
Background technology
Continuous research and development along with computer technology, computer equipment generally uses in various industry and commerce occasions, office, teaching environment even home environment at present, and possesses the notebook that the advantage that can be convenient for carrying is arranged, because than general computer equipment come light, thin, little, make notebook become a kind of computer installation that generally uses, and most computer equipment all is combined with audio unit, can allow the user enjoy the recreational and practicality of sound playing.
In existing patented technology, the technical patent case that has many applying FMs to send, for example the novel letters patent of TaiWan, China number No. 262932 patent name is in automobile-used mobile phone hand-free and the MP3 combination of wireless dispensing device, the technology of its exposure is that a circuit board is installed in the metal shell, this circuit board is provided with an integral chip and relevant matching component, and has one to switch switch, microphone, MP3 sound source input end, mobile phone sound source input end and a supply hub in this metal shell arranged outside.The input of the input of MP3 source of sound and mobile phone source of sound utilizes cable to be connected to its corresponding end points through change-over switch respectively, insert two branch connecting pins of integral chip again through the RC resistance capacity filter, the relevant pin of integral chip is connected to crystal, and form a high frequency oscillator, amplify through power amplifier again, after pin network send by antenna.
Again for example the novel letters patent of TaiWan, China number No. 258497 patent name for can utilize automobile-used sound equipment to play the portable device of a specific format music, when it listens to the FM frequency modulation broadcasting at automotive interior, can utilize this portable device to launch an electromagnetic signal, cover with a certain characteristic frequency automobile-used FM receiver, and make this characteristic frequency can play the specific format music that this portable device is play, this portable device structure includes an electromagnetic signal emitter, one source of sound input hole, one music format code translator, one music format identification system, one linkage interface, one computer storage device identical with this linkage interface is provided, does an electric connection with linkage interface.
Though computer equipment general on the market is combined with audio unit, many users big city exports the sound source data of this computer installation to audio playing device by at least one sound line, for listoning music.But at present sound line on the market is mostly for fear of the length of transmission line itself, thus its sound playing scope of expansion that the user can only be among a small circle, so that many restrictions and inconvenient are arranged in the use.And this voice signal can only be delivered to audio playing device broadcasts such as loudspeaker in wired mode via sound line, so be very restricted in application facet.
Summary of the invention
In view of the above problems, fundamental purpose of the present utility model provides a kind of computing machine audio unit with modulation signal launching circuit, the voice signal that it utilizes a modulation signal launching circuit to be exported with the audio signal output terminal mouth of modulating this sound treatment circuit, and with the load mode of wireless transmit voice signal is launched.
The utility model is connected in the audio unit of a computer installation for solving technological means that prior art problems adopted by bus, includes a sound treatment circuit, a voice signal output loop, a modulation signal launching circuit in this computing machine audio unit.This sound treatment circuit can receive and handle the sound source data that this computer installation is exported, and by an audio signal output terminal mouth output sound signal, and this voice signal can export voice signal to broadcast unit by this voice signal output loop, also can with wireless mode voice signal be launched, receive and play for long-range receiver by this modulation signal launching circuit.
Another purpose of the present utility model provides a kind of computing machine audio unit with modulation signal launching circuit, possessing on this computing machine audio unit has one to switch the unit, it is connected between audio signal output terminal mouth, voice signal output loop and the modulation signal launching circuit of this sound treatment circuit, in order to switch the output loop of this voice signal.And modulation signal launching circuit of the present utility model more includes a left channel signals treatment circuit and a right-channel signals treatment circuit.
Another purpose of the present utility model promptly provides a kind of computing machine audio unit with modulation signal launching circuit, it is integrated in the audio unit of a computer installation with modulation signal launching circuit of the present utility model, and constitutes the computing machine audio unit that this has the modulation signal launching circuit.
Another purpose of the present utility model promptly provides a kind of computing machine audio unit that can select the voice output channel that has, it is except traditional wired formula voice signal output loop, one modulation signal launching circuit also is provided, makes the sound playing of computing machine audio unit have better application.
Compared to prior art, the utility model utilizes a modulation signal launching circuit, the audio unit that makes this computer installation is except original wired formula voice signal output loop, even be combined with a modulation signal launching circuit, and with wireless transmission mode the voice signal of computing machine audio unit is launched, receive and play for long-range receiver.This mode of ameliorating not only can improve the previous calculation machine must export the voice signal of this computer installation to shortcoming that peripheral playback equipment just can enlarge its sound playing scope by sound line, enable voice is play the length restriction that scope can not be subject to sound line, also can save and lead the step of establishing sound line, represent the splendid commercial surcharge of the utility model.
The specific embodiment that the utility model adopted will be further described by following embodiment and accompanying drawing.
Description of drawings
Fig. 1 is applied to the preferred embodiment system block diagrams of computer installation for showing computing machine audio unit that the utility model the utlity model has the modulation signal launching circuit
Fig. 2 is the further embodiment circuit function calcspar of computing machine audio unit in the displayed map 1
Embodiment
At first consult shown in Figure 1ly, it is applied to the preferred embodiment system block diagrams of computer installation for showing the computing machine audio unit the utlity model has the modulation signal launching circuit.This computer installation 100 includes a central processing unit 1, one first bridge 11, one second bridge 12 as shown in the figure, wherein this central processing unit 1 is connected in first bridge 11 via system bus, and first bridge 11 is connected with an Installed System Memory 111.First bridge 11 connects a display 2 via a display interfaces 112.
Second bridge 12 is connected with a ROM-BIOS 121.Store in this ROM-BIOS 121 computer system required ROM-BIOS program (bios program) and system's self test program (Power On Self Test is called for short the POST program) when starting arranged.
Second bridge 12 connects a hard disk interface 122 via bus, connects a hard disk 123 by this hard disk interface 122 again, as the data memory device of this computer system.In this hard disk 123, store driver, the application program of the operating system that computer system is arranged, every peripheral unit.This second bridge 12 also connects a computing machine audio unit 3 via a bus 13 (for example pci bus).
This computing machine audio unit 3 includes a voice signal output loop 31 and a modulation signal launching circuit 32.This computing machine audio unit 3 can receive and handle the voice signal that the voice signal of being exported from this bus 13 and is simulated source of sound 4.And this voice signal output loop 31 is connected with two playing devices 5,5a.
Consult shown in Figure 2ly, it is the further embodiment circuit function calcspar of computing machine audio unit 3 in the displayed map 1.As shown in the figure, this computing machine audio unit 3 includes a voice signal output loop 31, a modulation signal launching circuit 32, a sound treatment circuit 33 and a switching unit 34.This sound treatment circuit 33 includes an audio signal processing circuit 331, an analog-to-digital converter 332, a digital signal processor 333 and a digital to analog converter 334.
This audio signal processing circuit 331 can receive the voice signal that this simulation source of sound 4 is imported, and this voice signal is delivered to analog-to-digital converter 332.The analoging sound signal that this simulation source of sound 4 is produced can input to this voice signal output loop 31, and other voice signal input source can be arranged according to the application of this computer installation when practical application.
This analog-to-digital converter 332 is converted to a digital signal with the voice signal that receives, and delivers to this digital signal processor 333 and do signal Processing, and this digital signal processor 333 also can receive and handle the voice signal that this computer installation 100 is exported.The voice signal that this digital signal processor 333 is handled is promptly delivered to this digital to analog converter 334 voice signal is converted to simulating signal, and exports this voice signal by an audio signal output terminal mouth.
This switch unit 34, it is connected in the audio signal output terminal mouth of this digital to analog converter 334, and this switch unit 34 includes one first change-over switch 341, one second change-over switch 342, one the 3rd change-over switch 343 and one the 4th change-over switch 344.This first change-over switch 341 and second change-over switch 342 are connected in this voice signal output loop 31, and the 3rd change-over switch 343 and the 4th change-over switch 344 are connected in this modulation signal launching circuit 32.After this voice signal converts a simulating signal to via digital to analog converter 334, can be by the switching of this switch unit 34, to select the loop of its output.
This voice signal output loop 31 includes 2 sound amplifying circuits 311,312, and first change-over switch 341 of this switch unit 34 is connected in this sound amplifying circuit 311, and this second change-over switch 342 is connected in this sound amplifying circuit 312.When first change-over switch 341 and second change-over switch 342 were closed, the voice signal of these digital to analog converter 334 outputs was promptly undertaken after audio frequency amplifies by this sound amplifying circuit 311,312, exported this playing device 5 to, 5a is play.
This modulation signal launching circuit 32 includes a left channel signals treatment circuit 321, a right-channel signals treatment circuit 322, a coding circuit 323, signal modulation circuit 324 and a high frequency radio transmitter 325.The 3rd change-over switch 343 of this switch unit 34 is connected in this left channel signals treatment circuit 321, and the 4th change-over switch 344 is connected in this right-channel signals treatment circuit 322.
When the 3rd change-over switch 343 and the 4th change-over switch 344 closures, the voice signal of this digital to analog converter 334 outputs is delivered to this signal modulation circuit 324 to do signal modulation process after promptly delivering to this coding circuit 323 and do encoding process via this left channel signals treatment circuit 321 and right-channel signals treatment circuit 322.And this voice signal is after signal modulation, promptly delivers to this high frequency radio transmitter 325 and voice signal launched with wireless mode by an antenna assembly, receives and plays for long-range receiver.
Via the foregoing description explanation as can be known, the computing machine audio unit that the utility model adopted utilizes a modulation signal launching circuit, with wireless transmission mode the voice signal of computing machine audio unit is launched, and receives and plays for long-range receiver.
When practical application, the signal modulation circuit in this modulation signal launching circuit is the modulation circuit of a FM signal, so that this voice signal is launched in the mode of frequency modulation.And this computer installation is a notebook.
This mode of ameliorating not only makes this computer installation except original voice output loop, even be combined with a modulation signal launching circuit, the voice signal of more having improved the previous calculation machine must be connected to the shortcoming that peripheral playback equipment just can enlarge its sound playing scope by sound line, enable voice is play the length restriction that scope can not be subject to sound line, also can save and lead the step of establishing sound line, represent the splendid commercial surcharge of the utility model.
By above-mentioned the utility model embodiment as can be known, the true tool coml of the utility model value.Above-described technical scheme is not to be used for limiting the utility model.In not breaking away from claim scope of the present utility model, the change of being done all belongs to scope of patent protection of the present utility model.Please refer to appended claim about the protection domain that the utility model defined.
Claims (5)
1. computing machine audio unit with modulation signal launching circuit, this audio unit is connected in a computer installation via bus, it is characterized in that, and this audio unit includes:
One sound treatment circuit, in order to receiving and to handle the sound source data that this computer installation is exported, and by an audio signal output terminal mouth output sound signal;
One voice signal output loop, the voice signal of being exported in order to the audio signal output terminal mouth that receives this sound treatment circuit; And
One modulation signal launching circuit in order to the voice signal that the audio signal output terminal mouth that receives this sound treatment circuit is exported, after the signal modulation, is launched voice signal with wireless mode, receives and plays for long-range receiver.
2. the computing machine audio unit with modulation signal launching circuit according to claim 1, it is characterized in that, this audio unit more includes one and switches the unit, be connected between audio signal output terminal mouth, voice signal output loop and the modulation signal launching circuit of this sound treatment circuit, deliver to this voice signal output loop or modulation signal launching circuit in order to switch the voice signal that this audio signal output terminal mouth exported.
3. the computing machine audio unit with modulation signal launching circuit according to claim 1, it is characterized in that, this modulation signal launching circuit includes a left channel signals treatment circuit and a right-channel signals treatment circuit, and the voice signal that the audio signal output terminal mouth of this sound treatment circuit is exported is sent via two kinds of different sound channels.
4. the computing machine audio unit with modulation signal launching circuit according to claim 1, it is characterized in that, signal modulation circuit in this modulation signal launching circuit is the modulation circuit of a FM signal, so that this voice signal is launched in the mode of frequency modulation.
5. the computing machine audio unit with modulation signal launching circuit according to claim 1 is characterized in that this computer installation is a notebook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620061083 CN2916762Y (en) | 2006-06-30 | 2006-06-30 | Computer audio device with modulated signal emission circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620061083 CN2916762Y (en) | 2006-06-30 | 2006-06-30 | Computer audio device with modulated signal emission circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2916762Y true CN2916762Y (en) | 2007-06-27 |
Family
ID=38187674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620061083 Expired - Fee Related CN2916762Y (en) | 2006-06-30 | 2006-06-30 | Computer audio device with modulated signal emission circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2916762Y (en) |
-
2006
- 2006-06-30 CN CN 200620061083 patent/CN2916762Y/en not_active Expired - Fee Related
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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: 20070627 Termination date: 20120630 |