CN112114708A - Wake-up circuit and intelligent device - Google Patents
Wake-up circuit and intelligent device Download PDFInfo
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- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4418—Suspend and resume; Hibernate and awake
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Abstract
The application provides a wake-up circuit and smart machine relates to intelligent terminal technical field, and the wake-up circuit includes: the device comprises a first detection unit, a first awakening unit and a buffer unit; the first detection unit is used for generating a corresponding state signal according to the opening and closing state of the cover of the intelligent device, the first awakening unit is used for responding to the operation of a user to generate an awakening signal, and when the state signal represents that the cover of the intelligent device is in the opening state, the buffer unit works to output the awakening signal to the processor of the intelligent device. The scheme that this application provided utilizes first detecting element to detect whether the lid of smart machine is opened or is closed, and the buffer unit works when the lid of smart machine is opened, with the first awakening signal transmission who awakens the unit to the treater, the system architecture has been simplified to the scheme that this application provided, need not increase extra MCU, need not write control program, utilize simple hardware like buffer door or NOT gate etc. can realize preventing the mistake and touch the scheme, reduced the cost of preventing the mistake and touching the scheme.
Description
Technical Field
The invention relates to the technical field of intelligent terminals, in particular to a wake-up circuit and intelligent equipment.
Background
When the tablet personal computer, the notebook computer or the smart phone and other equipment are placed in the bag, the equipment can be awakened sometimes because of touching a starting button or a touch screen, a large number of running programs are started, and energy consumption is increased. Particularly, under the conditions that the sensitivity of the touch screen is improved and narrow-frame equipment is increasingly popular, the defect of mistaken touch of the touch screen is more obvious. Under the circumstance, the design of preventing mistaken touch is very important, the mistaken touch prevention of the equipment is realized by sensing a magnet of a leather sheath or a leather sheath keyboard through a Hall sensor (Hall sensor), and for the mistaken touch prevention of equipment such as a tablet personal computer, a notebook computer or a smart phone with the leather sheath or the leather sheath keyboard, the Hall sensor is usually detected through a Micro Control Unit (MCU), and then the starting key and the touch screen are controlled through an external universal input/output (GPIO).
The anti-false touch scheme can be realized by adding a separate MCU and compiling related software codes, so that the hardware cost and the technical cost are high, the reaction speed is not as fast as that of hardware, and the anti-false touch scheme is not dominant in low-cost application.
Disclosure of Invention
In view of this, an object of the present application is to provide a wake-up circuit with simple structure, which simplifies the structure of the anti-false-touch scheme and reduces the cost of the existing anti-false-touch scheme.
Embodiments of the invention may be implemented as follows:
in a first aspect, an embodiment of the present invention provides a wake-up circuit, where the wake-up circuit is applied to an intelligent device, and the wake-up circuit includes:
the device comprises a first detection unit, a first awakening unit and a buffer unit;
the buffer unit comprises a buffer unit enabling end, a buffer unit input end and a buffer unit output end, and the buffer unit input end is electrically connected with the first awakening unit; the enabling end of the buffer unit is electrically connected with the first detection unit; the output end of the buffer unit is electrically connected with a processor of the intelligent equipment;
the first detection unit is used for generating a corresponding state signal according to the opening and closing state of the cover of the intelligent device and sending the state signal to the enabling end of the buffer unit;
the first awakening unit is used for responding to the operation of a user to generate an awakening signal and sending the awakening signal to the input end of the buffer unit;
when the state signal represents that the cover of the intelligent device is in an open state, the buffer unit works to output the awakening signal sent by the first awakening unit to the processor of the intelligent device through the output end of the buffer unit.
In an alternative embodiment, when the status signal indicates that the cover of the smart device is in a closed state, the buffer unit does not operate.
In an optional embodiment, the smart device includes a touch panel controller, the touch panel controller includes a touch panel control end, and when the touch panel control end is enabled, the touch panel stops working;
the first detection unit is also electrically connected with the touch panel control end and is used for generating a corresponding state signal according to the opening and closing state of the cover of the intelligent device and sending the state signal to the touch panel control end;
and when the state signal represents that the cover of the intelligent device is in a closed state, enabling the control end of the touch panel.
In an alternative embodiment, the first detection unit comprises a hall sensor;
when the cover of the intelligent device is in an open state, the state signal generated by the Hall sensor is a first level state signal;
when the cover of the intelligent device is in a closed state, the state signal generated by the Hall sensor is a second level state signal; the first level state signal is opposite to the level state of the second level state signal.
In an alternative embodiment, the buffer unit enable terminal is active in a first level state;
the Hall sensor is electrically connected with the enabling end of the buffer unit.
In an alternative embodiment, the enable terminal of the buffer unit is active in the second level state;
the wake-up circuit further comprises a NOT gate circuit, and the Hall sensor is electrically connected with the enabling end of the buffer unit through the NOT gate circuit.
In an optional embodiment, the touch panel control terminal is in a second level state;
the Hall sensor is electrically connected with the control end of the touch panel.
In an optional embodiment, the wake-up circuit further includes a first diode, an anode of the first diode is electrically connected to the control end of the touch panel, and a cathode of the first diode is electrically connected to the first detection unit.
In an optional embodiment, the first wake-up unit is a key circuit, and the key circuit is configured to generate a wake-up signal in response to a pressing or touch operation of a user.
In a second aspect, an embodiment of the present invention provides a smart device, where the smart device includes the wake-up circuit according to any one of the foregoing embodiments.
Compared with the prior art, the application has the following beneficial effects:
the embodiment of the application provides a wake-up circuit and smart machine includes: the device comprises a first detection unit, a first awakening unit and a buffer unit; the buffer unit comprises a buffer unit enabling end, a buffer unit input end and a buffer unit output end, and the buffer unit input end is electrically connected with the first awakening unit; the enabling end of the buffer unit is electrically connected with the first detection unit; the output end of the buffer unit is electrically connected with a processor of the intelligent equipment; the first detection unit is used for generating a corresponding state signal according to the opening and closing state of the cover of the intelligent device and sending the state signal to the enabling end of the buffer unit; the first awakening unit is used for responding to the operation of a user to generate an awakening signal and sending the awakening signal to the input end of the buffer unit; when the state signal represents that the cover of the intelligent device is in an open state, the buffer unit works to output the awakening signal sent by the first awakening unit to the processor of the intelligent device through the output end of the buffer unit. The scheme that this application provided utilizes first detecting element to detect whether the lid of smart machine is opened or is closed, and when the lid was opened, the buffer unit worked when the lid of smart machine was opened, with the awakening signal transmission of first awakening unit to the treater, the system architecture has been simplified to the scheme that this application provided, need not increase extra MCU, utilizes simple hardware can realize preventing the mistake and touches the scheme, has reduced the cost of preventing the mistake and touching the scheme.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a conventional anti-false touch scheme;
fig. 2 is a schematic diagram of a wake-up circuit according to the present embodiment;
fig. 3 is a schematic diagram of another wake-up circuit provided in this embodiment;
fig. 4 is a schematic diagram of another wake-up circuit provided in this embodiment.
Icon: 100-a wake-up circuit; 110-a first detection unit; 120-a first wake-up unit; 130-a buffer unit; OE-buffer unit enable terminal; a-a buffer unit input; an OUTPUT-buffer unit OUTPUT; 140-not gate circuit; d1 — first diode; 210-a processor; 220-touch panel controller; tp _ stop _ n-touch panel control.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
When intelligent equipment such as a tablet computer, a notebook computer or a smart phone is placed in a bag, the equipment is awakened sometimes due to touching a start button or a touch screen, a large number of running programs are started, and energy consumption is increased. Particularly, under the conditions that the sensitivity of the touch screen is improved and narrow-frame equipment is increasingly popular, the defect of mistaken touch of the touch screen is more obvious. Under the condition, the design of preventing mistaken touch is very important, the mistaken touch prevention of the equipment is realized by sensing the magnet of the leather sheath or the leather sheath keyboard through the Hall sensor, and for the mistaken touch prevention of equipment such as a tablet personal computer, a notebook computer or a smart phone with the leather sheath or the leather sheath keyboard, the original mistaken touch prevention is realized by detecting the Hall through the MCU and then controlling the starting key and the touch screen through the external GPIO.
For example, referring to fig. 1, fig. 1 shows a schematic structural diagram of a conventional anti-false touch scheme. Taking a tablet notebook as an example, in the existing technical solution, the GPI1 of the MCU detects the input of the external power-on button, and when the input is low, it indicates that the power-on button is pressed, and the GPI2 detects the external hall sensor, and when the input is low, it indicates that the hall is triggered, and when the input is high, it indicates that the hall is not triggered. Outputting a Power Management Unit (PMU) by using the GPO1, wherein when the output of the GPO1 is a low level, the PMU receives a Power key signal, and the processor of the tablet notebook receives the Power signal of the PMU and then starts up; the GPO2 output is used for controlling the touch pad, the touch pad is closed when the output level is low, and the touch pad can work normally when the output level is high.
When the tablet notebook computer is closed, the Hall sensor outputs closing information (low level) to a GPI2 port of the MCU, and after the MCU obtains the closing information, even if a power-on key is pressed down and the touch screen is touched, a power-on signal (Phone _ on _ N) cannot be sent to the processor, and meanwhile, the touch screen is kept closed, so that the tablet notebook computer cannot be started and cannot be touched by mistake; when the cover is opened, the Hall sensor outputs cover opening information (high level) to a GPI2 port of the MCU, after the MCU obtains the cover opening information, the MCU detects whether the GPI1 port receives a POWER-on input signal (POWER _ KEY _ N), and after the POWER-on input signal is detected, the GPO1 port is used for transmitting the POWER-on signal to the processor system to normally start up, and meanwhile, the touch screen is not closed (the GPO2 port outputs high level). At the moment, the tablet notebook can be normally started, and the touch screen can be normally used.
The scheme needs to be realized by adding a single MCU and compiling related software codes, so that the production cost is high and the realization is complex.
In view of this, an object of the present application is to provide a new wake-up circuit, which is applied to a smart device for preventing false touch, so as to solve the problems of complex structure and high cost of the existing false touch prevention scheme.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a wake-up circuit 100 according to the present disclosure. The wake-up circuit 100 includes: a first detection unit 110, a first wake-up unit 120, and a buffer unit 130.
The buffer unit 130 includes a buffer unit enable terminal OE, a buffer unit input terminal a, and a buffer unit OUTPUT terminal OUTPUT, where the buffer unit input terminal a is electrically connected to the first wake-up unit 120; the buffer unit enable terminal OE is electrically connected to the first detecting unit 110; the buffer unit OUTPUT terminal OUTPUT is electrically connected to the processor 210 of the smart device.
The first detection unit 110 is configured to generate a corresponding status signal according to an open/close status of a cover of the smart device (e.g., a cover of the device itself or an additionally configured cover), and send the status signal to the buffer unit enable terminal OE; the first wake-up unit 120 is configured to generate a wake-up signal in response to a user operation, and send the wake-up signal to the input terminal a of the buffer unit.
When the state signal indicates that the cover of the smart device is in the open state, the buffer unit 130 OUTPUTs the wake-up signal sent by the first wake-up unit 120 to the processor 210 of the smart device through the buffer unit OUTPUT, so as to wake up the smart device.
According to the scheme provided by the embodiment of the application, by arranging the buffer unit 130, the first detection unit 110 and the first awakening unit 120, wherein the first detection unit 110 is used for detecting the opening and closing state of the cover of the intelligent device and generating a corresponding state signal, the buffer unit 130 is used for enabling according to the state signal representing the opening of the cover, the awakening signal generated by the first awakening unit 120 is sent to the processor 210 of the intelligent device to awaken the intelligent device, and under the condition that the cover is closed or closed, the buffer unit 130 does not work, so that the intelligent device cannot be awakened.
In a possible implementation manner, when the state signal generated by the first detection unit 110 indicates that the cover of the smart device is in a closed state (i.e., a closed state), the buffer unit 130 does not work, for example, the OUTPUT terminal OUTPUT of the buffer unit OUTPUTs a high-impedance state signal, and the high-impedance state signal does not affect the operation state of the subsequent circuit, for example, when the smart device is in a screen-off state, the high-impedance state signal cannot wake up the smart device.
The buffering unit 130 provided in the embodiment of the present application is enabled only when the cover of the smart device is opened, and sends the wake-up signal to the smart device; the cover of the intelligent device does not work in a closed state, and the intelligent device is prevented from being awakened due to mistaken touch and the like.
In a possible implementation manner, the first wake-up unit 120 is a key circuit, which may be a power key of the smart device or other keys with a wake-up function, and the key circuit is configured to generate a wake-up signal in response to a pressing or touch operation of a user, for example, when the user presses the power key, the key circuit generates the wake-up signal and sends the wake-up signal to the buffer unit 130.
In another possible implementation manner, the first wake-up unit 120 may also be another component having a wake-up function, for example, in some smart devices, the first wake-up unit 120 may further include a sensor such as an acceleration sensor, a gyroscope, and the like, and generates a wake-up signal when detecting movement of the smart device (for example, when being taken up by a user).
In another possible implementation manner, when the smart device has a touch screen wake-up function, the first wake-up unit 120 may further include a touch screen of the smart device, and when a user touches the touch screen, a wake-up signal is generated, which is not limited in this embodiment.
In a possible implementation manner, the first detecting unit 110 includes a hall sensor, a magnet is disposed on a cover of the smart device, a position of the hall sensor corresponds to a position of the magnet on the cover, when the cover of the smart device is in an open state, the hall sensor cannot detect the magnet, and a generated state signal is a first level state signal. When the cover of the smart device is in a closed state or a closed state, the hall sensor detects the magnet, and the generated state signal is a second level state signal.
In a possible implementation manner, the buffer enable terminal OE is enabled in the first level state, that is, when the signal input by the buffer enable terminal OE is the first level state signal, the buffer unit 130 is operated, and when the signal input by the buffer enable terminal OE is the second level state signal, the buffer unit 130 is not operated, and the hall sensor is electrically connected to the buffer enable terminal OE and configured to send the state signal to the buffer enable terminal OE.
In another possible implementation manner, the buffer enable terminal OE is active at the second level state, that is, when the signal input by the buffer enable terminal OE is the second level state signal, the buffer unit 130 is operated, and when the signal input by the buffer enable terminal OE is the first level state signal, the buffer unit 130 is not operated.
The hall sensor generates a first level state signal when the cover of the smart device is in an open state, and generates a second level state signal when the cover of the smart device is in a closed state or a closed state, so as to ensure that the smart device is not woken up when the cover is in the closed state, please refer to fig. 3. In this embodiment, the wake-up circuit 100 is further provided with a not-gate circuit 140, and the hall sensor is electrically connected to the enable terminal OE of the buffer unit through the not-gate circuit 140, so that when the cover of the smart device is in an open state and the hall sensor generates a first level state signal, the first level state signal is converted into a second level state signal by the not-gate circuit 140, and the buffer unit 130 is enabled, so that the smart device can be woken up normally by the wake-up signal; when the cover of the intelligent device is in a closed or closed state, and the hall sensor generates a second level state signal, the not-gate circuit 140 converts the second level state signal into a first level state signal, and sends the first level state signal to the buffer unit enable end OE, and the buffer unit 130 does not work, so that the intelligent device is prevented from being awakened when the cover is closed.
It should be understood that, in the present embodiment, the not gate circuit 140 is used to perform corresponding conversion on the level state, but the present embodiment is not limited thereto, and other components, such as an inverter, may be used, so as to integrate the consideration of the cost of the components, and the not gate circuit 140 is preferred.
In a possible implementation manner, the buffer unit 130 may employ a buffer gate device (buffer), but is not limited thereto, and may employ other components having the same or similar functions.
Referring to fig. 4, in one possible implementation, the smart device includes a touch panel controller 220, and when the smart device is locked, the touch panel controller 220 controls the touch panel to be locked (e.g., locked in a screen-saving mode), so as to reduce power consumption and prevent a false touch.
For example, the touch panel controller 220 includes a touch panel control terminal Tp _ stop _ n, and when the touch panel control terminal Tp _ stop _ n is enabled, the touch panel stops working.
In a possible implementation manner, the first detection unit 110 is further electrically connected to the touch panel control end Tp _ stop _ n, and the first detection unit 110 is configured to generate a corresponding status signal according to an open/close state of the cover of the smart device, and send the status signal to the touch panel control end Tp _ stop _ n.
Generally, when the state signal indicates that the cover of the smart device is in a closed state, the control terminal Tp _ stop _ n of the touch panel is enabled, and the touch panel stops working.
Taking the example that the first detection unit 110 includes a hall sensor, when the cover of the smart device is in an open state, the state signal generated by the hall sensor is a first level state signal; when the cover of the intelligent device is in a closed state or a closed state, the state signal generated by the hall sensor is a second level state signal, and the level state of the first level state signal is opposite to that of the second level state signal, for example, the first level state signal is a high level signal, and the second level state signal is a low level signal.
In a possible implementation manner, the touch panel control end Tp _ stop _ n is in a second level state and is effective, the hall sensor is electrically connected with the touch panel control end Tp _ stop _ n, when the cover of the intelligent device is in an open state, a first level state signal is sent to the touch panel control end Tp _ stop _ n, and the touch panel keeps a working state; when the cover of the intelligent device is in a closed state or a closed state, a second level state signal is sent to the touch panel control end Tp _ stop _ n, the touch panel control end Tp _ stop _ n is enabled, and the touch panel stops working.
In a possible implementation manner, the wake-up circuit 100 further includes a first diode D1, an anode of the first diode D1 is electrically connected to the touch panel control terminal Tp _ stop _ n, and a cathode of the first diode D1 is electrically connected to the first detection unit 110, and the first diode D1 is utilized to prevent the touch panel control terminal Tp _ stop _ n from being triggered by mistake.
In another possible implementation manner, if the control terminal Tp _ stop _ n of the touch panel is active at a high level, a not gate or an inverter or other components may be further provided to ensure that the touch panel does not work when the cover of the smart device is closed.
Based on the wake-up circuit 100 provided in the foregoing embodiment, an embodiment of the present application provides a smart device, where the smart device includes the wake-up circuit according to any one of the foregoing embodiments.
It can be understood that the smart device may be a device with a requirement of preventing a false touch, such as a smart phone, a tablet computer, or a notebook computer, which is not limited in this embodiment.
To sum up, the application provides a wake-up circuit and smart machine, include: the device comprises a first detection unit, a first awakening unit and a buffer unit; the buffer unit comprises a buffer unit enabling end, a buffer unit input end and a buffer unit output end, and the buffer unit input end is electrically connected with the first awakening unit; the enabling end of the buffer unit is electrically connected with the first detection unit; the output end of the buffer unit is electrically connected with a processor of the intelligent equipment; the first detection unit is used for generating a corresponding state signal according to the opening and closing state of the cover of the intelligent device and sending the state signal to the enabling end of the buffer unit; the first awakening unit is used for responding to the operation of a user to generate an awakening signal and sending the awakening signal to the input end of the buffer unit; when the state signal represents that the cover of the intelligent device is in an open state, the buffer unit works to output the awakening signal sent by the first awakening unit to the processor of the intelligent device through the output end of the buffer unit. The scheme that this application provided utilizes first detecting element to detect whether intelligent equipment's lid is opened or is closed, and when the lid was opened, buffer unit work was awaken the awakening signal transmission of unit with first and is sent to the treater, and the system architecture has been simplified to the scheme that this application provided, need not increase extra MCU, need not write control program, utilizes simple hardware to realize preventing mistake and touches the scheme like buffer door NOR gate, has reduced the cost of preventing mistake and touching the scheme.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A wake-up circuit, applied to a smart device, comprising:
the device comprises a first detection unit, a first awakening unit and a buffer unit;
the buffer unit comprises a buffer unit enabling end, a buffer unit input end and a buffer unit output end, and the buffer unit input end is electrically connected with the first awakening unit; the enabling end of the buffer unit is electrically connected with the first detection unit; the output end of the buffer unit is electrically connected with a processor of the intelligent equipment;
the first detection unit is used for generating a corresponding state signal according to the opening and closing state of the cover of the intelligent device and sending the state signal to the enabling end of the buffer unit;
the first awakening unit is used for responding to the operation of a user to generate an awakening signal and sending the awakening signal to the input end of the buffer unit;
when the state signal represents that the cover of the intelligent device is in an open state, the buffer unit works and outputs the awakening signal sent by the first awakening unit to the processor of the intelligent device through the output end of the buffer unit.
2. The wake-up circuit of claim 1, wherein the buffer unit is not operational when the status signal indicates that the lid of the smart device is in a closed state.
3. The wake-up circuit according to claim 1, wherein the smart device comprises a touch panel controller, the touch panel controller comprising a touch panel control terminal, the touch panel being disabled when the touch panel control terminal is enabled;
the first detection unit is also electrically connected with the touch panel control end and is used for generating a corresponding state signal according to the opening and closing state of the cover of the intelligent device and sending the state signal to the touch panel control end;
and when the state signal represents that the cover of the intelligent device is in a closed state, enabling the control end of the touch panel.
4. The wake-up circuit according to claim 3, wherein the first detection unit comprises a Hall sensor;
when the cover of the intelligent device is in an open state, the state signal generated by the Hall sensor is a first level state signal;
when the cover of the intelligent device is in a closed state, the state signal generated by the Hall sensor is a second level state signal;
the first level state signal is opposite to the level state of the second level state signal.
5. The wake-up circuit of claim 4, wherein the buffer unit enable is active in a first level state;
the Hall sensor is electrically connected with the enabling end of the buffer unit.
6. The wake-up circuit of claim 4, wherein the buffer unit enable is active in a second level state;
the wake-up circuit further comprises a NOT gate circuit, and the Hall sensor is electrically connected with the enabling end of the buffer unit through the NOT gate circuit.
7. The wake-up circuit of claim 4, wherein the touch panel control terminal is active at a second level state;
the Hall sensor is electrically connected with the control end of the touch panel.
8. The wake-up circuit according to claim 7, further comprising a first diode, wherein an anode of the first diode is electrically connected to the control terminal of the touch panel, and a cathode of the first diode is electrically connected to the first detecting unit.
9. The wake-up circuit of claim 1, wherein the first wake-up unit is a key circuit, and the key circuit is configured to generate the wake-up signal in response to a pressing or touch operation of a user.
10. A smart device, characterized in that it comprises a wake-up circuit according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010985821.0A CN112114708B (en) | 2020-09-18 | 2020-09-18 | Wake-up circuit and intelligent device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010985821.0A CN112114708B (en) | 2020-09-18 | 2020-09-18 | Wake-up circuit and intelligent device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112114708A true CN112114708A (en) | 2020-12-22 |
| CN112114708B CN112114708B (en) | 2024-03-22 |
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| US6275947B1 (en) * | 1999-02-12 | 2001-08-14 | Winbond Electronics Corp. | Control circuit and method to wake up or turn on computer via peripheral device |
| CN103546645A (en) * | 2013-10-30 | 2014-01-29 | 上海斐讯数据通信技术有限公司 | System, method and mobile terminal for achieving smart cover function of mobile terminal |
| CN103793243A (en) * | 2013-11-22 | 2014-05-14 | 广州视源电子科技股份有限公司 | Mobile equipment, screen locking/unlocking method of mobile equipment and protective shell |
| CN104615225A (en) * | 2013-11-05 | 2015-05-13 | 纬创资通股份有限公司 | Power management apparatus and method |
| CN108983873A (en) * | 2012-08-27 | 2018-12-11 | 三星电子株式会社 | Device and method for wake-up processor |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6275947B1 (en) * | 1999-02-12 | 2001-08-14 | Winbond Electronics Corp. | Control circuit and method to wake up or turn on computer via peripheral device |
| CN108983873A (en) * | 2012-08-27 | 2018-12-11 | 三星电子株式会社 | Device and method for wake-up processor |
| CN103546645A (en) * | 2013-10-30 | 2014-01-29 | 上海斐讯数据通信技术有限公司 | System, method and mobile terminal for achieving smart cover function of mobile terminal |
| CN104615225A (en) * | 2013-11-05 | 2015-05-13 | 纬创资通股份有限公司 | Power management apparatus and method |
| CN103793243A (en) * | 2013-11-22 | 2014-05-14 | 广州视源电子科技股份有限公司 | Mobile equipment, screen locking/unlocking method of mobile equipment and protective shell |
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