Importance

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Abstract

An electricity saving device for a user interface terminal device of a cellular phone is used for a cellular phone. The cellular phone includes two devices, one of them is a net communicator, and the other is a user interface terminal device. The net communicator consists of a base frequency module, radio frequency module and bluetooth module, which are responsible for building a communication with a cellular telephone base station. And, the user interface terminal device consists a bluetooth, display, keyboard, horn and microphone, which are responsible for outputting voice, displaying message, accepting keyboard input, and voice input, respectively. The keyboard is a retractable keyboard; the pressing-back action of a keyboard will activate a contact switch. A voltage signal is generated and sent into a central processing unit of the user interface terminal device after the contact switch is activated, the central processing unit command a bluetooth module of the user interface terminal device to enter into a park mode so as to save electricity.

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First Claim