Patent Application
20130176231
1. Field of the Invention
The present invention relates to car stereo head unit technology and more particularly, to a car stereo head unit with a built-in wireless communication module system for Wi-Fi/GPRS (3G/4G) wireless applications.
2. Description of the Related Art
A car stereo head unit is normally installed in the dashboard center console of a car. A low-level car stereo head unit simply has an audio/video player system for playing radio/DC/DVD and receiving/playing TV programs. Further, regular car stereo head unit designs do not provide any functions for smart mobile phone/tablet computer application functions.
A high-level car stereo head unit may be equipped with an ARM watchdog module or embedded computer system for satellite navigation.
However, these conventional car stereo head unit designs are not applicable for internet access or connectable with a smart mobile phone or tablet computer for direct wireless application.
The present invention has been accomplished under the circumstances in view. It is main object of the present invention to provide a car stereo head unit, which has a built-in wireless communication module system, allowing for wireless applications.
To achieve this and other objects of the present invention, a car stereo head unit is installed in a dashboard center console of a car. The car stereo head unit comprises a control system, which comprises a car power converter electrically coupled to a car battery power supply system of the car to obtain the necessary working power supply from the car and a linear communication system electrically coupled to a car control computer of the car, a front face panel, which is electrically coupled with the control system, comprising a touchscreen, a display driver module system adapted for driving the touchscreen, an intelligent computer system module, an antenna embedded GPS receiver system and a wireless communication module system, a FM/AM radio receiver module electrically coupled to the control system, a DVD/SD/USB player module electrically coupled to the control system, a digital TV receiver and player module electrically coupled to the control system, and an audio output system electrically coupled to the control system. Subject to touch control through the touchscreen of the front face panel, the control system controls the audio output system to play sound and the touchscreen of the front face panel to play videos. Further, by means of the intelligent computer system module and wireless communication module system of the front pace panel, the car stereo head unit is allowed for mobile phone application and internet access.
Further, the linear communication system that electrically connects the control system to the car control computer of the car is constructed subject to CAN BUS (controller area network bus) protocol.
Further, the wireless communication module system of the front pace panel is a Wi-Fi/GPRS (3G/4G) wireless communication module system.
Based on the aforesaid innovative design, the invention achieves the following applications:
Other advantages and features of the present invention will be fully understood by reference to the following specification in conjunction with the accompanying drawings, in which like reference signs denote like components of structure.
Referring to
The control system 101 comprises a car power converter 107 electrically coupled to the car battery power supply system of the car to obtain the necessary working power supply from the car. Further, the control system 101 is electrically connected to the car control computer of the car through a linear communication system 201. The main feature of the invention is the special design of the front face panel 102. The front pace panel 102 is coupled with the control system 101, comprising a touchscreen, a display driver module system adapted for driving the touchscreen, an intelligent computer system module, an antenna embedded GPS receiver system, and a wireless communication module system.
The linear communication system 201 that electrically connects the control system 101 to the car control computer of the car is constructed subject to CAN BUS (controller area network bus) protocol. The wireless communication module system of the front pace panel 102 can be Wi-Fi/GPRS (3G/4G) wireless communication module system.
Further, the FM/AM radio receiver module 103, the DVD/SD/USB player module 104, the digital TV receiver and player module 105 and the audio output system 106 are respectively electrically coupled to the control system 101.
The audio output system 106 comprises an audio DSP (digital signal processor) system, an audio control system, and an audio power amplifier system for audio output through a speaker system 204 that is installed in the car.
Subject to touch control through the touchscreen of the front face panel 102, the control system 101 controls the audio output system 106 to play sound and the touchscreen of the front face panel 102 to play videos. Further, by means of the intelligent computer system module and wireless communication module system of the front pace panel 102, the car stereo head unit 100 is allowed for mobile phone application and internet access.
The control system 101 of the car stereo head unit 100 is also electrically coupled with a drive recorder system 202. Further, the FM/AM radio receiver module 103 is electrically coupled with a radio antenna 203.
Based on the aforesaid innovative design, the invention achieves the following applications:
Although a particular embodiment of the invention has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.
