CN201278144Y - Wireless acoustic apparatus for computer cabinet - Google Patents
Wireless acoustic apparatus for computer cabinet Download PDFInfo
- Publication number
- CN201278144Y CN201278144Y CNU200820202032XU CN200820202032U CN201278144Y CN 201278144 Y CN201278144 Y CN 201278144Y CN U200820202032X U CNU200820202032X U CN U200820202032XU CN 200820202032 U CN200820202032 U CN 200820202032U CN 201278144 Y CN201278144 Y CN 201278144Y
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- China
- Prior art keywords
- audio
- circuit
- wireless
- audio signal
- receiving
- 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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- 230000005236 sound signal Effects 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000008676 import Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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- Circuit For Audible Band Transducer (AREA)
- Transmitters (AREA)
Abstract
本实用新型公开了一种电脑机箱无线音响装置，包括无线发射模块和无线接收模块；所述无线发射模块安装在电脑机箱内，由音频输入电路、音频调制电路、高频发射电路组成，所述音频输入电路接收计算机主板或声卡的音频信号处理后依次输入音频调制电路和高频发射电路完成调频发射；所述无线接收模块安装在音箱内，由接收放大电路、音频解调电路、音频功率放大电路及扬声器组成，所述接收放大电路接收调频信号放大处理后，通过音频解调电路解调得到音频信号，音频信号经音频功率放大电路放大后由扬声器播出。本实用新型解决了电脑音箱摆放位置受连线长短限制的问题，使用非常方便。
The utility model discloses a computer case wireless audio device, which comprises a wireless transmitting module and a wireless receiving module; the wireless transmitting module is installed in the computer case and is composed of an audio input circuit, an audio modulation circuit and a high-frequency transmitting circuit. The audio input circuit receives the audio signal of the computer motherboard or sound card and processes it to input the audio modulation circuit and the high-frequency transmission circuit to complete the FM transmission; The receiving amplifier circuit is composed of a circuit and a loudspeaker. After receiving and amplifying the FM signal, the receiving amplifier circuit demodulates the audio signal to obtain an audio signal. The audio signal is amplified by the audio power amplifier circuit and then played by the speaker. The utility model solves the problem that the placement position of the computer sound box is limited by the length of the connection line, and is very convenient to use.
Description
Technical field
The utility model relates to a kind of acoustics, particularly relates to a kind of computer housing wireless acoustics device.
Background technology
At present, utilizing audio-video work such as computer music appreciating all is to connect the sound equipment in the computer housing or sound equipment is connected to by tone frequency channel wire by wired earphone to realize on the audio amplifier that such mode is all by wired connection.Obviously connect audio amplifier by tone frequency channel wire and brought inconvenience: the one,, the external line of computer housing increases, and influences attractive in appearance; The 2nd,, audio amplifier is put the restriction of the length that is subjected to line, uses inconvenient; The 3rd,, connect lead and break down easily.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of computer housing wireless acoustics device very easy to use.
The technical scheme that the utility model technical solution problem is adopted is: a kind of computer housing wireless acoustics device comprises wireless transmitter module and wireless receiving module; Described wireless transmitter module is installed in the computer housing, form by audio frequency input circuit, audio modulating circuit, high frequency transmission circuit, import audio modulating circuit and high frequency transmission circuit after the Audio Signal Processing of described audio frequency input circuit receiving computer mainboard or sound card successively and finish the frequency modulation emission; Described wireless receiving module is installed in the audio amplifier, form by receiving amplifying circuit, audio frequency demodulator circuit, audio power amplifying circuit and loudspeaker, after described reception amplifying circuit receives the FM signal processing and amplifying, obtain sound signal by the demodulation of audio frequency demodulator circuit, sound signal is broadcasted by loudspeaker after audio power amplifying circuit amplifies.
The beneficial effects of the utility model are: the utility model has overcome computer sound box and has put the shortcoming that is subjected to the restriction of line length, effectively limiting without any the orientation in the range of receiving, can put at an arbitrary position, be not subjected to the restriction of barriers such as body of wall, furniture, floor, glass, very easy to use, and guarantee the transmission of audio frequency high-fidelity, and whole computer system has reduced the use of external line, and it is cleaner and tidier that outward appearance seems.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
The utility model relates to a kind of computer housing wireless acoustics device, comprises wireless transmitter module and wireless receiving module.Wireless transmitter module adopts the chip design of monolithic ANTENN AUDIO, and periphery circuit design is simple, cost is low, function admirable, is installed in the computer housing, provides direct current supply by the computer housing power-supply system.As shown in Figure 1, wireless transmitter module is made up of audio frequency input circuit 1, audio modulating circuit 2, high frequency transmission circuit 3, stereo audio signal input audio modulating circuit 2 after audio frequency input circuit 1 is handled from computer motherboard or sound card carries out frequency modulation, transfers to high frequency transmission circuit 3 behind the frequency modulation and launches.
Wireless receiving module adopts the design of monolithic ANTENN AUDIO receiving chip, is installed in the audio amplifier, and other connects the 220V AC power and powers after rectification.As shown in Figure 1, receiving unit is formed by receiving amplifying circuit 4, audio frequency demodulator circuit 5, audio power amplifying circuit 6 and loudspeaker 7, reception amplifying circuit 4 is accepted FM signal and is carried out processing and amplifying, import audio frequency demodulator circuit 5 afterwards and carry out demodulation, obtain sound signal, sound signal is broadcasted by loudspeaker 7 after audio power amplifying circuit 6 amplifies.
Native system adopts multiple transmit frequency when design, multiple carrier frequency can be set easily, realizes the switching between the various carrier frequencies.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820202032XU CN201278144Y (en) | 2008-10-17 | 2008-10-17 | Wireless acoustic apparatus for computer cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820202032XU CN201278144Y (en) | 2008-10-17 | 2008-10-17 | Wireless acoustic apparatus for computer cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201278144Y true CN201278144Y (en) | 2009-07-22 |
Family
ID=40895731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820202032XU Expired - Fee Related CN201278144Y (en) | 2008-10-17 | 2008-10-17 | Wireless acoustic apparatus for computer cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201278144Y (en) |
-
2008
- 2008-10-17 CN CNU200820202032XU patent/CN201278144Y/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20141017 |
|
| EXPY | Termination of patent right or utility model |