On-vehicle handsfree system and mobile terminal thereof

Abstract

A handsfree video phone system includes a video phone terminal and a car device in which a microphone, a speaker, and a camera are connected with an instrument panel via a cable. The video phone terminal is connected with the instrument panel via a wireless communication medium. When the video phone terminal is brought into the vehicle, the instrument panel informs the video phone terminal of the attribute information on the system structure. According to the attribute information, the video phone terminal switches the paths of multiplexed audio-video data so as to replace a microphone, a speaker, a camera, and a display that have been built in the video phone terminal with the microphone, the speaker, the camera, and a display of the instrument panel when the status changes to the communication status.

Description

BACKGROUND OF THE INVENTION [0001] (1) Field of the Invention [0002] The present invention relates to a handsfree system for making a handsfree telephone call in an automobile, and especially relates to an on-vehicle handsfree system that is realized in combination with car devices such as a camera, a microphone, a speaker, and a display. [0003] (2) Description of the Prior Art [0004] For the safe use of a mobile phone in an automobile, on-vehicle handsfree systems have become popular. [0005] The conventional on-vehicle handsfree system will be explained with reference to FIG. 1. FIG. 1 schematically shows the structure of a conventional on-vehicle handsfree system. [0006] The conventional handsfree system includes an adapter 1201, a microphone-built-in control switch assembly 1202, a mobile phone 1203, and an external antenna 1204. The adapter 1201 is equipped with connectors to be connected with the microphone-built-in control switch assembly 1202, the mobile phone 1203, and the e...

AI Technical Summary

Benefits of technology

"The present invention provides a compact on-vehicle handsfree system that does not require peripheral devices exclusive for the handsfree system. The system includes a mobile phone terminal and a car device with car peripheral units such as a microphone, speaker, camera, and display. The car device informs the mobile terminal of its attribute information and the mobile terminal replaces or complements the built-in peripheral units of the mobile phone terminal with the car peripheral units to use them instead. This eliminates the need for separate peripheral devices and ensures easy operation and safe driving. The handsfree system can be activated without troublesome operations and uses the car's existing infrastructure for communication. The invention also provides a convenient on-vehicle handsfree system that includes a mobile phone terminal and car device with car peripheral units such as a microphone, speaker, camera, and display. The car camera can be adjusted for each user by storing set information in the mobile terminal or the car peripheral units. The handsfree system can be activated without troublesome operations and uses the car's existing infrastructure for communication."

Problems solved by technology

This is troublesome.

This is problematic.

Although these audio and video devices also include peripheral devices such as a microphone, a speaker, a display, and a remote controller, these peripheral devices cannot be easily used for the hands free system.

As a result, the limited internal space is inefficiently occupied.

The video phone terminal, however, has a small display that is not useful to watch the screen.

This is also troublesome.

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