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Electronic device and automatic wake-up circuit thereof

An electronic device, automatic wake-up technology, applied in the direction of measurement device, data processing power supply, measurement flow/mass flow, etc., can solve the problems of large hardware volume and high manufacturing cost, and achieve the effect of reducing hardware volume and reducing manufacturing cost.

Inactive Publication Date: 2009-09-30
MSTAR SEMICON INC
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Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide an electronic device and its automatic wake-up circuit, the main purpose of which is to solve the problems of high manufacturing cost and large hardware volume of the existing automatic wake-up circuit

Method used

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  • Electronic device and automatic wake-up circuit thereof
  • Electronic device and automatic wake-up circuit thereof
  • Electronic device and automatic wake-up circuit thereof

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Embodiment Construction

[0055] Figure 4 It is a system block diagram of a preferred embodiment of an electronic device with a circuit wake-up module of the present invention, the electronic device 11 (such as a portable electronic device such as a mobile phone, a personal digital assistant (PDA), a global positioning system (GPS), etc.) includes: An operation module 12 , an additional function module 13 and a circuit wake-up module 14 . Wherein, the function of the operation module 12 is to execute the basic functions of the electronic device 11. For example, if the electronic device 11 is a mobile phone, the operation module 12 can be an operation circuit for processing baseband signals in the mobile phone, and is matched with the radio frequency chip 6. , the basic function of sending and receiving voice signals of the mobile phone can be performed. When the electronic device 11 enters the sleep mode, the computing module 12 generates a first control signal 100 and sends it to the circuit wake-up...

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Abstract

The invention relates to an electronic device and an automatic wake-up circuit thereof. The electronic device comprises an operation module, an additional functional module, and a circuit wake-up module, wherein the operation module is used for executing a basic function of the electronic device and producing a first control signal when the electronic device enters a sleep mode; the additional function module is coupled with the operation module and is used for providing an additional function for the electronic device and producing a second control signal; and the circuit wake-up module is coupled with the operation module and the additional functional module and producing a third control signal according to the first control signal and the second control signal, wherein the additional functional module maintains the operation of the additional function according to the third control signal when the electronic device enters the sleep mode. The invention has the advantages that the invention can still maintain the operation of the electronic device when the electronic device enters the sleep mode, and achieve the effects of reducing the manufacturing cost and reducing hardware volume.

Description

technical field [0001] The invention relates to an electronic device and its automatic wake-up circuit, in particular to an electronic device that can still maintain the operation of additional functions of the electronic device when the electronic device enters a sleep mode. Background technique [0002] In modern life, portable devices are becoming more and more common, such as mobile phones, personal digital assistants (personal digital assistant, PDA) or portable multimedia players (portable multimedia player, PMP). And more and more additional function modules are integrated into the portable device, for example, global position system (global position system, GPS), radio frequency identification (radio frequency identification, RFID) module and some forward-looking applications. Generally, the portable device is provided with a sleep mode. When the user stops operating for a period of time, the portable device enters the sleep mode to save battery power consumption. H...

Claims

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Application Information

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IPC IPC(8): G06F1/26G06F1/32
Inventor 陈建盛谢志远
Owner MSTAR SEMICON INC
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