Electricity-saving wireless input apparatus and system

A wireless input and signal input technology, applied in circuit devices, electromagnetic wave systems, battery circuit devices, etc., can solve the problems of high power consumption, non-environmental protection, and inconvenient use of the radio frequency transmitter 131

Inactive Publication Date: 2009-07-22
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, due to the high power consumption of the radio frequency transmitter 131, the battery 133 will soon run out of

Method used

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  • Electricity-saving wireless input apparatus and system
  • Electricity-saving wireless input apparatus and system
  • Electricity-saving wireless input apparatus and system

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Embodiment Construction

[0016] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0017] figure 2 It is a block diagram of an embodiment of the wireless input system of the present invention, wherein the wireless input system 20 includes an electronic device (such as a computer host) 21 , a radio frequency transceiver 22 and a wireless input device 23 . The wireless input device 23 can be a wireless mouse, a wireless keyboard, or a sensing device capable of sensing temperature, humidity, pressure, pulse wave, etc. The radio frequency transceiver 22 can be coupled to the host computer 21 via a transmission interface (such as USB, RS232, etc.), or built in the host computer 21, and can transmit the first radio frequency signal to the wireless input device 23; the wireless input device 23 then Utilize the first radio frequency signal to generate electric energy, and use the electric ener...

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Abstract

The invention provides a power-saving wireless input device and a system. The wireless input device comprises an antenna, a radio frequency identification transponder (RFID transponder), an energy storage unit and an induction unit, wherein the RFID responder receives an alternating current signal through the antenna and converts the alternating current signal into a direct current signal; the energy storage unit receives the direct current signal for charging; the induction unit uses electric energy provided by the energy storage unit, and generates an input signal to the RFID transponder by induction; the RFID transponder generates a request signal by demodulation according to the alternating signal, executes load modulation according to the input signal so as to generate a return signal responding to the request signal, and transmits the return signal through the antenna.

Description

technical field [0001] The present invention relates to wireless input technology, especially to a wireless input device and system capable of saving power. Background technique [0002] Wireless input devices, such as wireless mice and wireless keyboards, are currently input tools commonly used by computers. figure 1 is a structural diagram of an existing wireless input device, wherein the wireless input device 13 is used for inputting data into the host computer 11 . The wireless input device 13 includes a radio frequency transmitter (RF transmitter) 131 , a sensing unit 132 and a battery 133 . The sensing unit 132 modulates the sensed input signal (such as mouse input signal or keyboard input signal) through the RF transmitter 131 , transmits it to an RF receiver (RF receiver) 12 , and then transmits it to the computer host 11 . The power required for the operation of the radio frequency transmitter 131 and the sensing unit 132 is provided by the battery 133 . [0003]...

Claims

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Application Information

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IPC IPC(8): G06F1/32G06F3/02G06F3/033H02J17/00H02J7/00H02J50/20
Inventor 张维陈建盛
Owner MEDIATEK INC
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