Universal multimedia Bluetooth hand-free apparatus on vehicle

Abstract

The invention relates to an onboard universal multi-media blue-tooth hand-free device, in particular to the onboard universal multi-media blue-tooth hand-free device that can transmit the signals from various multi-media storage devices to a car stereo to be played. The hand-free device comprises a blue-tooth wireless transfer unit, a hand-free speaker unit, a stereo sound source switching unit, a cable signal input unit, a control unit and a stereo sound output unit, so as to be connected in series with a car stereo, to ensure that the traditional car stereo is provided with an additional talking function of the blue-tooth wireless hand-free speaker and can be connected with various hand-held multi-media storage devices in a wired or wireless way, thus realizing the function of playing the music.

Description

technical field [0001] The invention relates to a universal multimedia bluetooth hands-free device on a car, in particular to a universal multimedia bluetooth hands-free device on a car that can transmit the signals of various multimedia storage devices to car audio playback. Background technique [0002] Due to the popularization of bluetooth technology, all kinds of mobile phones can support the wireless communication of the bluetooth protocol, so that users can make hands-free calls no matter when and where, such as the application number 92200595 of Taiwan Province of China developed by the industry. No. "A bluetooth-type mobile phone hands-free handset co-constructed in the car stereo", for incoming calls, the car stereo can actively transfer the incoming call sound to the car stereo output, so that the driver can use the hands-free handset to talk Moreover, with the advancement of network and music compression technology, the sources and storage forms of music are in a...

AI Technical Summary

Problems solved by technology

[0002] Due to the popularization of bluetooth technology, all kinds of mobile phones can support the wireless communication of the bluetooth protocol, so that users can make hands-free calls no matter when and where, such as the application number 92200595 of Taiwan Province of China developed by the industry. No. "A bluetooth-type mobile phone hands-free handset co-constructed in the car stereo", for incoming calls, the car stereo can actively transfer the incoming call sound to the car stereo output, so that the driver can use the hands-free handset to talk Moreover, with the advancement of network and music compression technology, the sources and storage forms of music are in addition to traditional tapes, CDs, AM / FM wireless broadcasting...etc., the compressed music obtained through the network is stored in Various flash memory cards, USB storage devices, and various MP3 players. However, the current car stereos in the market cannot connect to the above-mentioned various multimedia storage devices through Bluetooth communication, which makes it very inconvenient to use

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