CN104331304A - Standby waking-up method of external notebook computer of audio equipment - Google Patents
Standby waking-up method of external notebook computer of audio equipment Download PDFInfo
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- CN104331304A CN104331304A CN201410540282.4A CN201410540282A CN104331304A CN 104331304 A CN104331304 A CN 104331304A CN 201410540282 A CN201410540282 A CN 201410540282A CN 104331304 A CN104331304 A CN 104331304A
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Abstract
The invention discloses a standby waking-up method of an external notebook computer of audio equipment. The standby waking-up method comprises the following steps of when the audio equipment is inserted into the notebook computer, utilizing an internal electrical characteristic of an audio interface (earphone/MIC interface) of the audio equipment to convert into a stable and reliable level signal so as to wake up the notebook computer and enable the notebook computer to work normally. The method provided by the invention not only is applicable to the application that the notebook computer is powered on immediately after the audio equipment and the notebook computer are connected, but also is applicable to the application that the notebook computer can be controlled to be powered on after the audio equipment and the notebook computer are connected, can realize effective started waking up of the external notebook computer of the audio equipment under the matching of the audio interface, realizes switching of self modes, and has strong application compatibility.
Description
Technical field
The present invention relates to computing machine notebook technical field, be specifically related to the standby wakeup method of the external notebook of a kind of audio frequency apparatus.
Background technology
Along with the fast development of electronics and computer technology, its application has been deep into the every field of life.Notebook, smart mobile phone, PAD etc. are no exception.And as a kind of application from equipment of notebook audio frequency apparatus, this just requires that notebook can under the control of audio frequency apparatus, carry out the accurate switching of mode of operation, effective distribution of power consumption, to realize reliably, efficiently applying, and stronger compatibility should be had.
Summary of the invention
The technical problem to be solved in the present invention is: the standby wakeup method of the external notebook of a kind of audio frequency apparatus.
The technical solution adopted in the present invention is:
The standby wakeup method of the external notebook of a kind of audio frequency apparatus, when audio frequency apparatus inserts notebook, utilize the internal electric characteristic of the audio interface (earphone/MIC interface) of audio frequency apparatus, be converted to one and stablize and reliable level signal, make it normally work in order to wake notebook up.
The internal electric characteristic of the audio interface of audio frequency apparatus refers to the DC biased level of MIC passage or the internal resistance of left and right acoustic channels and voltage.
The wakeup process of described method is: interrupting the CPU, the enable power circuit that wake the notebook be under super low-power consumption operational mode up, with thinking that notebook is powered or triggered switch circuit, notebook being switched on power.
The specific operation process of described method is: when reinforced notebook computer equipment inserts audio frequency apparatus, sound signal trigger circuit can produce trigger pulse from high to low and send MCU to; After MCU receives trigger pulse, can judge whether laptop devices system is in standby or dormant state, if be in above-mentioned state, MCU can send the order of enable line related, reports bridge sheet simultaneously, and line related is opened, and completes notebook wake actions; If notebook is in normal operating conditions or off-mode, then MCU does not respond.
MCU (MicroControllerUnit) Chinese name micro-control unit, also known as one chip microcomputer (SingleChipMicrocomputer), refer to the appearance along with large scale integrated circuit and development thereof, by the CPU of computing machine, RAM, ROM, timing number device and multiple I/O Interface integration on one chip, form the computing machine of chip-scale, doing various combination for different application scenarios to control, is exactly said single-chip microcomputer at ordinary times.
Described method is realized by sound signal trigger circuit, described trigger circuit comprise the triode Q1 of a positive-negative-positive and the triode Q2 of NPN type, and when earphone or Mike do not access, Q1 and Q2 is in cut-off state, the signal sending MCU to is high level, and now MCU does not respond task operating;
When earphone or Mike access, Q1 and Q2 conducting, the signal sending MCU to becomes low level, and the signal that MCU receives this moment is pulse signal from high to low;
When earphone or Mike access always, Q1 and Q2 is conducting always, and the signal that MCU receives is low level always, and now MCU does not respond any operation.
Beneficial effect of the present invention is: adopt method provided by the present invention, both be applicable to after audio frequency apparatus is connected with notebook, the application that notebook powers on immediately, also be applicable to after audio frequency apparatus is connected with notebook, the controlled application powered on of notebook, can realize the external notebook of audio frequency apparatus under audio interface coordinates, effective start wakes up, realize the switching of its mode, there is very strong application compatible.
Accompanying drawing explanation
Fig. 1 is hardware principle block diagram of the present invention;
Fig. 2 is sound signal trigger circuit figure of the present invention.
Embodiment
With reference to the accompanying drawings, by embodiment, the present invention is further described:
Embodiment 1:
The standby wakeup method of the external notebook of a kind of audio frequency apparatus, when audio frequency apparatus inserts notebook, utilize the internal electric characteristic of the audio interface (earphone/MIC interface) of audio frequency apparatus, be converted to one and stablize and reliable level signal, make it normally work in order to wake notebook up.
Embodiment 2:
On the basis of embodiment 1, described in the present embodiment, the wakeup process of method is: interrupting the CPU, the enable power circuit that wake the notebook be under super low-power consumption operational mode up, with thinking that notebook is powered or triggered switch circuit, notebook being switched on power.
Embodiment 3:
On the basis of embodiment 1 or 2, as shown in Figure 1, the specific operation process of described method is the present embodiment: when reinforced notebook computer equipment inserts audio frequency apparatus, sound signal trigger circuit can produce trigger pulse from high to low and send MCU to; After MCU receives trigger pulse, can judge whether laptop devices system is in standby or dormant state, if be in above-mentioned state, MCU can send the order of enable line related, reports bridge sheet simultaneously, and line related is opened, and completes notebook wake actions; If notebook is in normal operating conditions or off-mode, then MCU does not respond.
Embodiment 4:
On the basis of embodiment 3, the present embodiment as shown in Figure 2, described method is realized by sound signal trigger circuit, described trigger circuit comprise the triode Q1 of a positive-negative-positive and the triode Q2 of NPN type, when earphone or Mike do not access, Q1 and Q2 is in cut-off state, and the signal sending MCU to is high level, and now MCU does not respond task operating;
When earphone or Mike access, Q1 and Q2 conducting, the signal sending MCU to becomes low level, and the signal that MCU receives this moment is pulse signal from high to low;
When earphone or Mike access always, Q1 and Q2 is conducting always, and the signal that MCU receives is low level always, and now MCU does not respond any operation.
Claims (4)
1. the standby wakeup method of the external notebook of audio frequency apparatus, it is characterized in that: when audio frequency apparatus inserts notebook, utilize the internal electric characteristic of the audio interface of audio frequency apparatus, be converted to a stable level signal, make it normally work in order to wake notebook up.
2. the standby wakeup method of the external notebook of a kind of audio frequency apparatus according to claim 1, it is characterized in that, the wakeup process of described method is: interrupt the CPU, the enable power circuit that wake the notebook be under super low-power consumption operational mode up, with thinking that notebook is powered or triggered switch circuit, notebook is switched on power.
3. the standby wakeup method of the external notebook of a kind of audio frequency apparatus according to claim 1 and 2, it is characterized in that, the specific operation process of described method is: when reinforced notebook computer equipment inserts audio frequency apparatus, sound signal trigger circuit can produce trigger pulse from high to low and send MCU to; After MCU receives trigger pulse, can judge whether laptop devices system is in standby or dormant state, if be in above-mentioned state, MCU can send the order of enable line related, reports bridge sheet simultaneously, and line related is opened, and completes notebook wake actions; If notebook is in normal operating conditions or off-mode, then MCU does not respond.
4. the standby wakeup method of the external notebook of a kind of audio frequency apparatus according to claim 3, it is characterized in that: described method is realized by sound signal trigger circuit, described trigger circuit comprise the triode Q1 of a positive-negative-positive and the triode Q2 of NPN type, when earphone or Mike do not access, Q1 and Q2 is in cut-off state, the signal sending MCU to is high level, and now MCU does not respond task operating;
When earphone or Mike access, Q1 and Q2 conducting, the signal sending MCU to becomes low level, and the signal that MCU receives this moment is pulse signal from high to low;
When earphone or Mike access always, Q1 and Q2 is conducting always, and the signal that MCU receives is low level always, and now MCU does not respond any operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410540282.4A CN104331304A (en) | 2014-10-14 | 2014-10-14 | Standby waking-up method of external notebook computer of audio equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410540282.4A CN104331304A (en) | 2014-10-14 | 2014-10-14 | Standby waking-up method of external notebook computer of audio equipment |
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| CN104331304A true CN104331304A (en) | 2015-02-04 |
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| CN201410540282.4A Pending CN104331304A (en) | 2014-10-14 | 2014-10-14 | Standby waking-up method of external notebook computer of audio equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104967945A (en) * | 2015-06-03 | 2015-10-07 | 广东欧珀移动通信有限公司 | Headphone power amplifier and method for controlling same |
| CN107168156A (en) * | 2017-05-16 | 2017-09-15 | 深圳市美好创亿医疗科技有限公司 | Reduce the control circuit and control method of electronic product power consumption |
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Application publication date: 20150204 |