Patent Application
20100229008
1. Field of the Invention
The present invention relates generally to a sound effect power supply configuration, and more particularly, to a sound effect power supply configuration using USB power source supplied by a USB port as a power source in the functional blocks of an audio unit.
2. The Prior Art
As a rapid development of the electronic technology, the consumer electronic devices with a function of playing speech sound or music have been popularized increasingly, such as an MP3 (MPEG 1 Layer 3) player, a CD (compact disk) player and a DVD (digital versatile disc) player, and even more popularizing cell phones are also built in the function of playing speech sound or music with time.
Therefore, users may download MP3 songs from the Internet and store them into an MP3 player or a cell phone, use an earphone to receive the audio signals output by the MP3 player or the cell phone to listen to music. In addition, users may also play music by playing a CD storing music or a DVD storing video and audio data through a CD player or a DVD player, respectively, to conveniently enjoy the music. However, in general, the output speakers of an MP3 player, a CD player, a DVD player or a cell phone have lower output power, so the sound quality is poor, which is a serious defect for listening to music as entertainment. Although a small speaker may amplify music directly, the sound effect is poor and the volume is not large, the improving effects are very limited in practical. Generally, it is necessary to use a speaker with an external power source for fully solving the problem of sound quality. To connect to an ordinary socket, it often causes a great inconvenience to users. Especially to those users who use computers for long time, they need to place additional power supply receptacles in the limited space of their tables. However, the USB port itself of a cell phone, a laptop computer, a computer or other electronic devices may provide a power source of 5V. It is such a waste for not using the said power source but looking for an additional socket.
The main object of the present invention is to provide a sound effect power supply configuration, which includes a USB power supply source, an external audio source, a sound effect unit and an external speaker, wherein the USB power input terminal provides sound effect unit USB power source, for the sound effect unit after obtaining USB power source may receive the audio signals output by the external audio source, and after appropriately processing the audio, may drive the external speaker to generate sounds having high quality sound effect.
Another object of the present invention is to provide a sound effect power supply configuration, which includes a USB power supply source, an external audio source, a sound effect unit and an external speaker, wherein the sound effect unit has a 3D surround, an equalizer, a bass booster, a sound expander, and a sound wider, for audio processing and improving the sound quality.
Hence, the present invention may solve the defects of the prior art, by adequately using a USB port of a cell phone, a laptop computer, a computer or other electronic devices for the USB port itself may provide a power source of 5V.
The present invention will be apparent to those skilled in the art by reading the following detailed description of a preferred embodiment thereof, with reference to the attached drawings, in which:
Reference will now be made in detail to an embodiment of the present invention, examples of which are illustrated in the accompanying drawings.
Referring to
The external audio source 20 has a function of playing speech sound or music, such as an MP3 player, a cell phone, a CD player, and a DVD player. The external audio source 20 has an audio signal terminal 21, for outputting an audio signal 25.
The sound effect unit 30 has a USB power input terminal 31, an audio input terminal 33, an audio output terminal 35, and a plurality of audio blocks (not shown). The USB power input terminal 31 receives the USB power source 11 for using as a power supply source of the audio blocks. The audio input terminal 33 receives the audio signal 25 from the external audio source 20. The audio output terminal 35 outputs an audio output signal 37 which generated by the sound effect unit 30 after processing by the audio blocks. The external speaker 40 receives the audio output signal 37 of the sound effect unit 30, and generates sounds.
Referring to
As known from
Although the present invention has been described with reference to the preferred embodiment thereof, it is apparent to those skilled in the art that a variety of modifications and changes may be made without departing from the scope of the present invention which is intended to be defined by the appended claims.
