Summary of the invention
For the deficiencies in the prior art, the object of the invention is to provide a kind of stereophone, meets mobile device miniaturization, lightening requirement and can improve again tonequality, promote Consumer's Experience.
The present invention's proposed technical scheme that solves the problem is: a kind of stereophone, for being connected with the main equipment with OTG function, the loud speaker that described earphone comprises signal receiving unit, the control unit be connected with described signal receiving unit, the audio processing modules be connected with described control unit and is connected with described audio processing modules, described audio processing modules comprises:
The signal processing unit be connected with described control unit, for processing the signal receiving described main equipment;
The signal conversion unit be connected with described signal processing unit and loud speaker respectively.
Further, described signal conversion unit comprises the digital to analog converter be connected with described signal processing unit and loud speaker respectively.
Further, described audio processing modules also comprises the analog computing amplifier be connected with described digital to analog converter and loud speaker respectively.
Further, described signal receiving unit comprises usb interface module.
Further, described signal receiving unit comprises wireless receiving module.
Further, the push-button unit be connected with described control unit is also comprised.
Further, the energy-storage units be connected with described control unit is also comprised.
Further, described signal conversion unit also comprises the analog to digital converter be connected with described signal processing unit, and described earphone also comprises the microphone be connected with described analog to digital converter.
Stereophone provided by the invention, mobile device is made to meet miniaturization, lightening requirement by being placed on by audio-frequency signal processing module in described earphone, and make user to experience stereophonic effect by carrying out process to audio signal, improve tonequality, improve Consumer's Experience; Meanwhile, can also select different music styles by the parts changed in earphone, substitute mode is simple, cost-saving.
Embodiment
Below, embodiments of the invention are described in detail with reference to the accompanying drawings.But, the present invention can be implemented in many different forms, and the present invention should not be interpreted as being limited to the specific embodiment of setting forth here.On the contrary, provide these embodiments to be to explain principle of the present invention and practical application thereof, thus enable others skilled in the art understand various embodiment of the present invention and be suitable for the various amendments of certain expected application.
With reference to Fig. 1, present embodiments provide a kind of stereophone, described earphone comprises: signal receiving unit 1, the control unit 2 be connected with described signal receiving unit 1, the audio processing modules 3 be connected with described control unit 2 and the loud speaker 4 be connected with described audio processing modules 3.Described signal receiving unit comprises usb interface module 11, and described usb interface module 11 is for connecting described earphone and the main equipment 5 providing digital signal, and main equipment 5 described here has OTG function.Described signal receiving unit 1 receives the digital signal of main equipment 5 transmission by described usb interface module 11 and described digital signal is sent to control unit, the digital signal that signal receiving unit 1 described here receives is the digital signal after described main equipment 5 is packed according to usb protocol, wherein be loaded with the signal relevant to usb protocol, so, described signal receiving unit 1 will first unpack it receiving described digital signal, then wherein relevant to usb protocol signal is got rid of, described digital signal is reduced into the digital signal only including digital audio and video signals and control signal, again digital signal after reduction is sent to described control unit, described control unit controls described audio processing modules according to described control signal, described digital audio and video signals is sent to described audio processing modules simultaneously, described audio processing modules sends to loud speaker after processing described digital audio and video signals, then described digital audio and video signals exports by loud speaker.
Wherein, described earphone can be In-Ear, wear-type, ear type or ear suspension type.This several earphone difference is the external shape of earphone, its internal structure and operation principle identical, the present invention mainly describes earphone internal structure and operation principle, and its external shape is not used in restriction the present invention.
In the present embodiment, described earphone is different from the earphone of traditional 3.5MM socket, described earphone is provided with the audio processing modules 3 for processing digital audio and video signals.Wherein, described audio processing modules 3 comprises again the signal processing unit 31 be connected with described control unit 2 and the signal conversion unit 32 be connected with described signal processing unit 31 and loud speaker 4 respectively.Wherein, described signal conversion unit 32 comprises digital to analog converter 32a, and described digital to analog converter 32a is connected with described signal processing unit and loud speaker respectively.The digital audio and video signals that described signal processing unit 31 sends for the treatment of described main equipment 5; Finally described digital audio and video signals is sent to described digital to analog converter 32a, the discrete digital audio and video signals received is converted to continuous print simulated audio signal by described digital to analog converter 32a, again described simulated audio signal is sent to described loud speaker 4, described loud speaker 4 exports described simulated audio signal.
Concrete, described signal processing unit 31 adopts the integrated sound effect algorithms based on intersection symbiosis and head-related transfer function (HRTF) to process described digital audio and video signals.Wherein, symbiosis technology of intersecting is that each ear can both hear the sound of dual track in order to make user when using described earphone.User is when using traditional earphone, the sound channel that two ears are heard is all monophony, the sound of what left ear was heard is L channel, the sound of what auris dextra was heard is R channel, adopt the technology of intersection symbiosis, be fed to a part of right channel sound at L channel and in R channel, be fed to the sound of a part of L channel, like this, user, when the described earphone of use, just can hear the sound of dual track and stereo in the ear of both sides.Approach from the sound that earphone is heard the sound that original sound source sends in order to user can be made, the sound of HRTF technology to space different azimuth is adopted to simulate, obtain analog function, again the sound received from described earphone is reduced into by the conversion of analog function the sound that original sound source sends, such user just can hear natural stereo sound.The technology that intersection symbiosis technology and HRTF technology are well known to those skilled in the art, repeats no more here.
With reference to Fig. 2, in order to increase the function of described earphone, described earphone can also comprise the microphone 6 for receiving external audio signal, and described signal conversion unit 32 also comprises the analog to digital converter 32b be connected with described signal processing unit, and described microphone 6 is connected with described analog to digital converter 32b.Described analog to digital converter 32b process is sent it to after described microphone 6 receives external audio signal, the external audio signal that microphone 6 described here receives is analog signal, described analog to digital converter 32b converts thereof into digital audio and video signals and described digital audio and video signals is sent to described signal processing unit 31 after receiving described external audio signal, and described signal processing unit 31 processes described digital audio and video signals and sends it to described main equipment 5 by described usb 11.
In order to better music experience can be obtained, described audio processing modules 3 also comprises analog computing amplifier 33, described analog computing amplifier 33 is connected with described digital to analog converter 32a and loud speaker 4 respectively, simulated audio signal after conversion is sent to described analog computing amplifier 33 by described digital to analog converter 32a, described analog computing amplifier 33 carries out amplification process to described simulated audio signal, then sends to described loud speaker 4 to export the simulated audio signal after process.
For the ease of controlling audio signal, described earphone also comprises push-button unit 7.Described push-button unit 7 is connected with described control unit 2, and for controlling the broadcast state of described audio signal, wherein, described push-button unit can comprise volume increase and decrease button, broadcasting/pause button, can also comprise fast forwarding and fast rewinding button.
In addition, according to USBOTG interfacing, can also arrange an energy-storage units 8 inside described earphone, described energy-storage units 8 is connected with described control unit 2, stop as while its power supply at described main equipment 5, described earphone can be undertaken powering by stand-by power supply and work on; Meanwhile, when described main equipment electricity exhausts, can be described main equipment emergency service by connecting described earphone.
Earphone described in the present embodiment also can be wireless headset, such as, and bluetooth earphone.Described signal receiving unit also comprises wireless receiving module, the audio signal of described main equipment wirelessly can be sent to control unit by described wireless receiving module.When utilizing usb interface module to carry out audio signal transmission, can be the charging of described earphone by described main equipment, when wirelessly carrying out the transmission of audio signal, can be that described earphone is powered by described energy-storage module.
The above is only the embodiment of the application; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection range of the application.