Computer sleep/awake circuit
AssigneesHONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., Hon Hai Precision Industry Co., Ltd.
InventorsYong-Xing You, Feng-Long He, Ke-You Hu, Hui Wang
Life of this patent
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Abstract
A sleep/awake circuit includes an infrared receiving/sending module, a micro-control circuit, and a bus control circuit. The micro-control circuit sends a command signal to the infrared receiving/sending module at predetermined intervals. The infrared receiving/sending module detects the presence or absence of a user and then sends a signal back to the micro-control circuit indicating a result. According to the result, the micro-control circuit exchanges data and clock signals with the bus control circuit. The bus control circuit then sends control signals to the computer to control sleep/awake states of the computer.
Claims13
A computer sleep/awake circuit comprising:
- an infrared receiving/sending module sending and receiving infrared detecting signals;
- a micro-control circuit connected to the infrared receiving/sending module for sending command signals to the infrared receiving/sending module and receiving returned detecting signals, wherein the micro-control circuit comprises a micro controller unit and a serial program interface connected to the micro controller unit, wherein sleep/awake control programs for a computer comprising the computer sleep/awake circuit are written to the micro controller unit via the serial program interface;
- a manual reset switch circuit connected with the micro-control circuit for manually resetting the micro-control circuit;
- and
- a bus control circuit connected between the micro-control circuit and a port of the computer for exchanging data and clock signals with the micro-control circuit and outputting corresponding control signals to the computer to control sleep/awake states of the computer.
A sleep/awake circuit comprising:
- an infrared receiving/sending module sending and receiving infrared detecting signals;
- a micro-control circuit comprising a micro controller unit and a serial program interface connected to the micro controller unit, the micro controller unit connected to the infrared receiving/sending module for sending command signals to the infrared receiving/sending module and receiving returned detecting signals, wherein sleep/awake control programs for a device are written to the micro controller unit via the serial program interface;
- a bus control circuit comprising a bus controller and a clock circuit for providing clock signals for the bus controller, the bus controller connected to the micro-control circuit for exchanging data and clock signals with the micro-control circuit and outputting corresponding control signals to control sleep/awake states of the device;
- and
- a manual reset switch circuit connected with the micro-control circuit for manually resetting the sleep/awake circuit.
A method to control sleep/awake states of an electronic device, comprising the steps of:
- placing an infrared receiving/sending module to detect user's presence at user's operation positions of an electronic device by sending and receiving infrared detecting signals;
- electrically connecting said infrared receiving/sending module with a micro-control circuit to transmit said received infrared detecting signals of said infrared receiving/sending module to said micro-control circuit, wherein said micro-control circuit comprising a micro controller unit and a serial program interface connected to said micro controller unit, said micro controller unit connected to said infrared receiving/sending module for sending command signals to said infrared receiving/sending module and receiving returned detecting signals, wherein sleep/awake control programs for said electronic device are written to the micro controller unit via the serial program interface;
- electrically connecting a manual reset switch circuit with said micro-control circuit to manually reset said micro-control circuit;
- electrically connecting said micro-control circuit with said electronic device through a bus control circuit to control sleep/awake states of said electronic device;
- and
- periodically sending command signals from said micro-control circuit to said infrared receiving/sending module so as to control sleep/awake states of said electronic device based on said received detecting signals from said infrared receiving/sending module.
Dependencies are inferred from the claim text.