CN104182097A - Touch control terminal and method for preventing misjudgment of proximity sensor - Google Patents
Touch control terminal and method for preventing misjudgment of proximity sensor Download PDFInfo
- Publication number
- CN104182097A CN104182097A CN201410423656.4A CN201410423656A CN104182097A CN 104182097 A CN104182097 A CN 104182097A CN 201410423656 A CN201410423656 A CN 201410423656A CN 104182097 A CN104182097 A CN 104182097A
- Authority
- CN
- China
- Prior art keywords
- module
- proximity transducer
- light
- density
- control terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Electronic Switches (AREA)
Abstract
The invention discloses a touch control terminal and method for preventing misjudgment of a proximity sensor. The touch control terminal comprises a photosensitive device, a photoelectric conversion stabilizing module, a boosting module and a processor, which are connected in sequence. The photosensitive device converts photosignals of the external environment into electric signals, the processor is powered after the electric signals are subjected to stable boosting, light in the environment is prevented from being received by a photoelectric diode of the proximity sensor, misoperation of the proximity sensor is avoided, technology of sensors is developed and accuracy of the same is improved.
Description
Technical field
The present invention relates to communication technical field, a kind of for preventing touch control terminal and the method thereof of proximity transducer erroneous judgement.
Background technology
Proximity transducer in touch control terminal comprises infrarede emitting diode and photodiode two large divisions, proximity transducer in when work by infraluminescence diode transmitting short-wave infrared light, the time of detecting described infrared light reflection by photoelectric diode detect whether exist shelter near or away from situation.But in the time that reality is used, in the time having external ambient light to be radiated on the position of touch control terminal proximity transducer, the touch-screen of touch control terminal can reflect wherein on a part of light photodiode, cause proximity transducer to take for to be the light of being launched by himself infrarede emitting diode thing that is blocked to reflex on photodiode, false judgment is for there being shelter to approach, thus do not have shelter to approach or away from the situation that execution error action.Thus, touch control terminal may be in the time that user normally uses be closed backlightly owing to caused by the impact of external environment condition light as mistake, and the problem of screen locking etc. automatically, for user's routine use is made troubles.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, the object of the present invention is to provide a kind ofly for preventing touch control terminal and the method thereof of proximity transducer erroneous judgement, avoid proximity transducer to be subject to the impact of external ambient light, erroneous judgement and execution error action.
In order to achieve the above object, the present invention has taked following technical scheme:
For preventing a touch control terminal for proximity transducer erroneous judgement, it comprises:
Photosensitive device, the surround lighting reflecting for receiving the touch-screen of touch control terminal, and light signal is converted to electric signal;
Photoelectric conversion stable module, for stablizing described electric signal;
Boost module, for processing that the electric signal of photoelectric conversion stable module output is boosted, exports to the processor of touch control terminal, gives described processor power supply, avoids surround lighting to be received by the photodiode of proximity transducer;
Described photosensitive device, photoelectric conversion stable module, boost module are connected successively with processor.
Described for preventing the touch control terminal of proximity transducer erroneous judgement, between described photoelectric conversion stable module and boost module, be also provided with opto-electronic conversion filtration module, for the current spike signal of filtering photoelectric conversion stable module output.
Described for preventing the touch control terminal of proximity transducer erroneous judgement, between boost module and processor, be also provided with the Voltage stabilizing module that boosts, for the voltage signal after stable boosting.
Described for preventing the touch control terminal of proximity transducer erroneous judgement, between Voltage stabilizing module and processor, be also provided with the filtration module that boosts boosting, for filtering voltage ripple signals, and export to processor.
Described for preventing the touch control terminal of proximity transducer erroneous judgement, also comprise:
Infrared emission light Density Detection module, the density of the reflection ray receiving for detection of the photodiode of proximity transducer, and judge whether the density of described reflection ray is less than the density of the emission of light of the infrarede emitting diode of proximity transducer;
Voltage transforms infrared light module, and in the density of reflection ray during lower than the density of emission of light, the voltage that photosensitive device is produced is converted into Infrared, outwards launches by infrarede emitting diode.
A method that prevents proximity transducer erroneous judgement, it comprises:
A, the surround lighting being reflected by the touch-screen of photosensitive device reception touch control terminal, be converted to electric signal by light signal;
B, stablize described electric signal by photoelectric conversion stable module;
C, boost module, to processings of boosting of the electric signal of photoelectric conversion stable module output, export to the processor of touch control terminal, power to described processor, avoid surround lighting by the photodiode reception environment light of proximity transducer.
In the described method that prevents proximity transducer erroneous judgement, between described step B and step C, described method also comprises:
Current spike signal in B1, electric signal after stable by the filtering of opto-electronic conversion filtration module.
In the described method that prevents proximity transducer erroneous judgement, described step C also comprises: by boosting, Voltage stabilizing module carries out voltage stabilizing processing to the boost module voltage signal after treatment that boosts.
In the described method that prevents proximity transducer erroneous judgement, described step C also comprises: by the filtration module filtering of the boosting Voltage stabilizing module voltage stabilizing voltage ripple signals after treatment of boosting.
The described method that prevents proximity transducer erroneous judgement, also comprises:
D, in the time that infrared electro two utmost points of proximity transducer receive the infrared light of shelter reflection, the density of the reflection ray that sense photodiode receives, and judge whether the density of described reflection ray is less than the density of the emission of light of the infrarede emitting diode of proximity transducer;
E, when the density of reflection ray is during lower than the density of emission of light, the voltage that photosensitive device is produced is converted into Infrared, outwards launches by infrarede emitting diode.
Compared to prior art, provided by the invention for preventing touch control terminal and the method thereof of proximity transducer erroneous judgement, utilize photosensitive device that external environment condition light signal is converted to electric signal, by electric signal carry out voltage stabilizing boost process after power to processor, avoid surround lighting to be received by the photodiode of proximity transducer, thereby avoid proximity transducer misoperation, enriched the technology of sensor and the degree of accuracy of lifting sensor.
Brief description of the drawings
Fig. 1 is for preventing the structured flowchart of touch control terminal of proximity transducer erroneous judgement in the specific embodiment of the invention.
Fig. 2 is the present invention for preventing the process schematic diagram of preferred embodiment of touch control terminal of proximity transducer erroneous judgement.
Fig. 3 is for preventing the method flow diagram of method of proximity transducer erroneous judgement in the specific embodiment of the invention.
Embodiment
The invention provides a kind of for preventing touch control terminal and the method thereof of proximity transducer erroneous judgement.For making object of the present invention, technical scheme and effect clearer, clear and definite, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, of the present invention for preventing the structured flowchart of touch control terminal of proximity transducer erroneous judgement, it comprises: photosensitive device 100, photoelectric conversion stable module 200, boost module 400 and processor 700.Described photosensitive device 100, photoelectric conversion stable module 200, boost module 400 and processor 700 are connected successively.
Wherein, the surround lighting that photosensitive device 100 reflects for receiving the touch-screen of touch control terminal, and light signal is converted to electric signal.After the electric signal that photoelectric conversion stable module 200 is changed for light stable sensing device 100, output to boost module 400.Boost module 400 boosts after processing to the electric signal of photoelectric conversion stable module output, output to the processor 700 of touch control terminal, power to described processor 700, avoid surround lighting to be received and avoid surround lighting to be received by the photodiode of proximity transducer by the photodiode of proximity transducer, proximity transducer is thought by mistake be the light of the infrarede emitting diode transmitting thing that is blocked to reflex to the light on photodiode, avoid proximity transducer misoperation, thus avoided external ambient light make proximity transducer cannot normal operation problem.
The electric signal that surround lighting converts to by photosensitive device, its electric signal is unstable, a photoelectric conversion Voltage stabilizing module need to be set and stablize described electric signal, could supply subsequent module effectively to utilize.In addition, because the electric signal after stable is to be come by the direct transmitting photo-signal of photosensitive device, its electric signal is very faint, power supply signal can not be effectively provided, therefore,, by the boost module processing of boosting, make electric signal rise to certain amplitude so that it meets power supply signal requirement, output to processor, power to processor.
Concrete, described photosensitive device 100 adopts the electron device that the light sensation such as photoresistance, phototriode is sensitive, it is arranged on the periphery (as near photodiode setting) of the photodiode of proximity transducer, the infrared light wavelength of the transmitting of the energy wavelength coverage of sensitive induction infrared light and the light emitting diode of proximity transducer is corresponding, thereby get rid of accurately the part in surround lighting, proximity transducer being had the greatest impact, further reduce the possibility of erroneous judgement.The described touch control terminal mode that the detection of surround lighting can adopt pulsed to detect to external world, corresponding with the frequency of operation of proximity transducer, thus effectively reduce the power consumption that ambient light is brought, extend the service time of touch control terminal.
Described photoelectric conversion stable module 200 can adopt DC stabilization circuit, mu balanced circuit as existing in voltage stabilizing diode, switching regulator IC etc.Described boost module can adopt the existing booster circuit such as the chip that boosts, amplifying circuit (as operational amplifier).
Should be noted that, processor 700 receives after above-said current signal, controlling proximity transducer does not work and refers to: processor 700 is by carrying out a series of computing to the electric signal receiving, make proximity transducer reading can reflect really shelter approach or away from situation, in the time having surround lighting, directly absorbed by photosensitive device 100, while avoiding surround lighting to be refracted on proximity transducer, cause proximity transducer output supersaturation to cause the problem that cannot normally work.The computing of above-mentioned processor 700 to electric signal, the reading of adjusting proximity transducer is prior art, therefore repeats no more.
Concrete, as shown in Figure 1, between described photoelectric conversion stable module 200 and boost module 400, be also provided with opto-electronic conversion filtration module 300, the current spike signal of exporting for filtering photoelectric conversion stable module 200.The voltage signal that the light of surround lighting refraction changes into by photosensitive device 100, it exists electric signal clutter many, easily there is the situation of unsettled current spike, at boost module 400, electric signal is boosted amplify before, by a photoelectric conversion filtering 300 is set, boosting before amplification signal, in advance by the current spike filtering of electric signal, the weak voltage signal that makes to output to boost module 400 is more stable, prevents that boost module 400 is impaired.
After described voltage signal boosts by boost module 400, its signal exists certain instability, can stablize to powering to processor 700 in order to make the electric signal that boost module 400 is exported, between boost module 400 and processor 700, be also disposed with the Voltage stabilizing module 500 that boosts, as shown in Figure 1, the described Voltage stabilizing module 500 that boosts also can adopt existing mu balanced circuit, for the voltage signal after stable boosting, can be stable power supply signal is provided.
Due to boost module 400 by transform weak voltage signal boost after, can produce and the inconsistent ripple of power supply signal needing, the present invention adopts, the filtration module 600 that boosts is also set boosting between Voltage stabilizing module 500 and processor 700, for filtering boost stable after the voltage ripple signals of electric signal.Boost module 400 after boosting of boost module processed, can naturally produce some and the inconsistent ripple of power supply signal needing by the weak voltage signal transforming, if directly output in processor, can cause bad impact.Setting is boosted, and to enter processor 700 at voltage signal front by these inconsistent ripple filterings, to ensure the accuracy of power supply signal for filtration module 600.By setting boost Voltage stabilizing module 500 and the filtration module 600 that boosts, the weak voltage signal after treatment that can make to boost is more stable and power supply signal is provided accurately.
Wherein, opto-electronic conversion filtration module 300 and the filtration module 600 that boosts all can adopt the circuit such as filter capacitor, RC filtering circuit, LC filtering circuit, by adopting the electronic component of different parameters, realize the filtering of different amplitudes.
Further, touch control terminal of the present invention also comprises: infrared emission light Density Detection module 800 and voltage transform infrared light module 900, as depicted in figs. 1 and 2.
Described infrared emission light Density Detection module 800 connects photodiode and the infrarede emitting diode of proximity transducer, the density of the reflection ray receiving for detection of photodiode, and judge whether the density of described reflection ray is less than the density of the emission of light of the infrarede emitting diode of proximity transducer.If detect that the density of reflection ray that photodiode receives is on the low side, illustrate that photosensitive device 100 has absorbed the light of a part of infrarede emitting diode transmitting.
Described voltage transforms infrared light module 900 and photosensitive device 100, sending out UV light-emitting diode is connected with infrared emission light Density Detection module 800, for in the time that the density of described reflection ray is less than the density of emission of light of infrarede emitting diode, the voltage that voltage conversion infrared light module 900 produces photosensitive device 100 is converted into Infrared, outwards launch by infrarede emitting diode, afterwards, by infrared emission light Density Detection module 800 density of detection of reflected light again, until the consistent in density of the infrarede emitting diode emission of light of the infrared light density that infrared emission light Density Detection module 800 detects and proximity transducer.
The outside transmitting infrared light of the infrarede emitting diode meeting pulsed of proximity transducer self, described photosensitive device 100 may absorb the externally infrared light of transmitting of a part, and be translated into voltage signal, especially in the time that an infrared light part for outwards transmitting is refracted or is reflected back in proximity transducer, above-mentioned situation more easily occurs, thus, cause the electric signal changed out and actual ambient light signal not to be inconsistent, cause proximity transducer erroneous judgement.For example, in the time that the light of infrarede emitting diode transmitting is reflexed on photodiode by extraneous shelter, proximity transducer should be judged as object proximity, carries out corresponding operating.But the infrared signal that absorbs reflection due to above-mentioned photosensitive device is converted into electric signal, output to after treatment processor power supply, light that photodiode is received is more weak cannot touch nearly working sensor, finally causes proximity transducer erroneous judgement.
Concrete, as shown in Figure 2, in touch control terminal of the present invention in the time there is extraneous shelter, its workflow is as follows: the infrared light that infrarede emitting diode sends is blocked after thing reflection, received by photosensitive device 100 and photodiode, and this thing that is blocked of surround lighting reflects away, now photosensitive device 100 and photodiode all do not receive surround lighting.Infrared emission light Density Detection module 800 detects when the density of the reflection ray of photodiode reception is less than the density of emission of light of infrarede emitting diode, the voltage signal that voltage conversion infrared light module 900 is produced photosensitive device 100 changes into Infrared, again launch by infrarede emitting diode, continued to detect by infrared emission light Density Detection module 800, until when the consistent in density of penetrating light that the density of reflection ray and infrarede emitting diode are sent out, no longer voltage signal is converted into Infrared.Thereby ensure that electric signal that photosensitive device 100 is changed out can reflect the situation of actual environment light accurately, made the infrared signal of the reception reflection that photodiode can be correct, the possibility of proximity transducer erroneous judgement while having got rid of the extraneous shelter of above-mentioned existence.
The present invention is also corresponding provides a kind of method that prevents proximity transducer erroneous judgement, and as shown in Figure 3, described method comprises:
S100, the surround lighting being reflected by the touch-screen of photosensitive device reception touch control terminal, be converted to electric signal by light signal.
S200, stablize described electric signal by photoelectric conversion stable module.
S300, boost module, to processings of boosting of the electric signal of photoelectric conversion stable module output, export to the processor of touch control terminal, power to described processor, avoid surround lighting by the photodiode reception environment light of proximity transducer.
In the embodiment of the present invention, the electric signal that surround lighting converts to by photosensitive device, because this electric signal is unstable, therefore needs photoelectric conversion stable module to stablize described electric signal.After electric signal is stable, because its voltage is very faint, the present embodiment boosts to process by boost module and makes voltage rise to certain amplitude to power to processor.
Because electric signal after the voltage stabilizing of photoelectric conversion stable module exists current spike signal, for fear of current spike signal corruption boost module, between step S200 and step S300, described method also comprises: the current spike signal in the electric signal after stable by the filtering of opto-electronic conversion filtration module.Specifically refer to above-described embodiment.
Further, in order to make the voltage stabilization of boost module output, in step S300, described method also comprises: by boosting, Voltage stabilizing module carries out voltage stabilizing processing to the boost module voltage signal after treatment that boosts.Specifically refer to above-described embodiment.
Further, after the weak voltage signal that boost module transforms photosensitive device boosts, can produce the power supply signal inconsistent ripple required with processor, in step S300, described method also comprises: by the filtration module filtering of the boosting Voltage stabilizing module voltage stabilizing voltage ripple signals after treatment of boosting, thereby can meet the power supply needs of processor.
Preferably, in order to improve the judgement precision of proximity transducer, described method also comprises after step S300:
In the time that infrared electro two utmost points of proximity transducer receive the infrared light of shelter reflection, the density of the reflection ray that sense photodiode receives, and judge whether the density of described reflection ray is less than the density of the emission of light of the infrarede emitting diode of proximity transducer; When the density of reflection ray is during lower than the density of emission of light, the voltage that photosensitive device is produced is converted into Infrared, outwards launch by infrarede emitting diode, until the consistent in density of the emission of light of the density of reflection ray and the infrarede emitting diode of proximity transducer, thereby avoided shelter near time, photosensitive device absorbs the be blocked infrared light of thing transmitting of infrarede emitting diode, the photodiode causing cannot receive the infrared signal of reflection normally, causes the problem of proximity transducer erroneous judgement.
In sum, provided by the invention for preventing touch control terminal and the method thereof of proximity transducer erroneous judgement, utilize photosensitive device that external environment condition light signal is converted to electric signal, thereby electric signal is carried out to voltage stabilizing to boost after processing and is transferred to processor the judgement of proximity transducer is adjusted, avoid proximity transducer to be subject to the impact of external ambient light, erroneous judgement and execution error action, has enriched the technology of sensor and has promoted the degree of accuracy of sensor.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. for preventing a touch control terminal for proximity transducer erroneous judgement, it is characterized in that, comprising:
Photosensitive device, the surround lighting reflecting for receiving the touch-screen of touch control terminal, and light signal is converted to electric signal;
Photoelectric conversion stable module, for stablizing described electric signal;
Boost module, for processing that the electric signal of photoelectric conversion stable module output is boosted, exports to the processor of touch control terminal, gives described processor power supply, avoids surround lighting to be received by the photodiode of proximity transducer;
Described photosensitive device, photoelectric conversion stable module, boost module are connected successively with processor.
2. according to claim 1 for preventing the touch control terminal of proximity transducer erroneous judgement, it is characterized in that, between described photoelectric conversion stable module and boost module, be also provided with opto-electronic conversion filtration module, for the current spike signal of filtering photoelectric conversion stable module output.
3. according to claim 1 and 2ly it is characterized in that for preventing the touch control terminal of proximity transducer erroneous judgement, between boost module and processor, be also provided with the Voltage stabilizing module that boosts, for the voltage signal after stable boosting.
4. according to claim 3ly it is characterized in that for preventing the touch control terminal of proximity transducer erroneous judgement, between Voltage stabilizing module and processor, be also provided with the filtration module that boosts boosting, for filtering voltage ripple signals, and export to processor.
5. according to claim 1ly it is characterized in that for preventing the touch control terminal of proximity transducer erroneous judgement, also comprise:
Infrared emission light Density Detection module, the density of the reflection ray receiving for detection of the photodiode of proximity transducer, and judge whether the density of described reflection ray is less than the density of the emission of light of the infrarede emitting diode of proximity transducer;
Voltage transforms infrared light module, and in the density of reflection ray during lower than the density of emission of light, the voltage that photosensitive device is produced is converted into Infrared, outwards launches by infrarede emitting diode.
6. a method that prevents proximity transducer erroneous judgement, is characterized in that, comprising:
A, the surround lighting being reflected by the touch-screen of photosensitive device reception touch control terminal, be converted to electric signal by light signal;
B, stablize described electric signal by photoelectric conversion stable module;
C, boost module, to processings of boosting of the electric signal of photoelectric conversion stable module output, export to the processor of touch control terminal, power to described processor, avoid surround lighting by the photodiode reception environment light of proximity transducer.
7. the method that prevents proximity transducer erroneous judgement according to claim 6, is characterized in that, between described step B and step C, described method also comprises:
Current spike signal in B1, electric signal after stable by the filtering of opto-electronic conversion filtration module.
8. according to the method that prevents proximity transducer erroneous judgement described in claim 6 or 7, it is characterized in that, described step C also comprises: by boosting, Voltage stabilizing module carries out voltage stabilizing processing to the boost module voltage signal after treatment that boosts.
9. the method that prevents proximity transducer erroneous judgement according to claim 8, is characterized in that, described step C also comprises: by the filtration module filtering of the boosting Voltage stabilizing module voltage stabilizing voltage ripple signals after treatment of boosting.
10. the method that prevents proximity transducer erroneous judgement according to claim 6, is characterized in that, described method also comprises:
D, in the time that infrared electro two utmost points of proximity transducer receive the infrared light of shelter reflection, the density of the reflection ray that sense photodiode receives, and judge whether the density of described reflection ray is less than the density of the emission of light of the infrarede emitting diode of proximity transducer;
E, when the density of reflection ray is during lower than the density of emission of light, the voltage that photosensitive device is produced is converted into Infrared, outwards launches by infrarede emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410423656.4A CN104182097B (en) | 2014-08-26 | 2014-08-26 | For preventing the touch control terminal and its method of proximity transducer erroneous judgement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410423656.4A CN104182097B (en) | 2014-08-26 | 2014-08-26 | For preventing the touch control terminal and its method of proximity transducer erroneous judgement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104182097A true CN104182097A (en) | 2014-12-03 |
| CN104182097B CN104182097B (en) | 2017-11-10 |
Family
ID=51963202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410423656.4A Expired - Fee Related CN104182097B (en) | 2014-08-26 | 2014-08-26 | For preventing the touch control terminal and its method of proximity transducer erroneous judgement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104182097B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105224147A (en) * | 2015-10-13 | 2016-01-06 | Tcl移动通信科技（宁波）有限公司 | A kind of mobile terminal proximity transducer that prevents is by the method and system of ambient light interference |
| CN106022020A (en) * | 2016-05-17 | 2016-10-12 | Tcl移动通信科技（宁波）有限公司 | Optical detection touch screen unlocking device and method of mobile terminal |
| CN108388418A (en) * | 2018-03-06 | 2018-08-10 | 深圳市沃特沃德股份有限公司 | Audio regulation method, device and stereo set |
| CN112947743A (en) * | 2019-12-11 | 2021-06-11 | 茂达电子股份有限公司 | Proximity sensor with slice-type integral time sensing mechanism and sensing method thereof |
| CN115014408A (en) * | 2021-09-17 | 2022-09-06 | 荣耀终端有限公司 | Electronic device |
| CN115236889A (en) * | 2022-07-25 | 2022-10-25 | 京东方科技集团股份有限公司 | Photosensitive circuit, control method thereof and display panel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110006188A1 (en) * | 2009-07-07 | 2011-01-13 | Intersil Americas Inc. | Proximity sensors with improved ambient light rejection |
| CN102322875A (en) * | 2011-08-01 | 2012-01-18 | 西安电子科技大学 | Visible light sensor |
| WO2011150887A3 (en) * | 2011-06-24 | 2012-05-24 | 华为终端有限公司 | Method and device for adjusting detecting threshold of infrared proximity sensor |
| TW201312400A (en) * | 2011-09-02 | 2013-03-16 | Fu-Lin Ye | Touch control device combining with green energy |
| CN103066087A (en) * | 2012-12-20 | 2013-04-24 | 格科微电子（上海）有限公司 | Imaging sensor module and handheld electronic device |
-
2014
- 2014-08-26 CN CN201410423656.4A patent/CN104182097B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110006188A1 (en) * | 2009-07-07 | 2011-01-13 | Intersil Americas Inc. | Proximity sensors with improved ambient light rejection |
| WO2011150887A3 (en) * | 2011-06-24 | 2012-05-24 | 华为终端有限公司 | Method and device for adjusting detecting threshold of infrared proximity sensor |
| CN102322875A (en) * | 2011-08-01 | 2012-01-18 | 西安电子科技大学 | Visible light sensor |
| TW201312400A (en) * | 2011-09-02 | 2013-03-16 | Fu-Lin Ye | Touch control device combining with green energy |
| CN103066087A (en) * | 2012-12-20 | 2013-04-24 | 格科微电子（上海）有限公司 | Imaging sensor module and handheld electronic device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105224147A (en) * | 2015-10-13 | 2016-01-06 | Tcl移动通信科技（宁波）有限公司 | A kind of mobile terminal proximity transducer that prevents is by the method and system of ambient light interference |
| CN106022020A (en) * | 2016-05-17 | 2016-10-12 | Tcl移动通信科技（宁波）有限公司 | Optical detection touch screen unlocking device and method of mobile terminal |
| CN108388418A (en) * | 2018-03-06 | 2018-08-10 | 深圳市沃特沃德股份有限公司 | Audio regulation method, device and stereo set |
| CN112947743A (en) * | 2019-12-11 | 2021-06-11 | 茂达电子股份有限公司 | Proximity sensor with slice-type integral time sensing mechanism and sensing method thereof |
| CN112947743B (en) * | 2019-12-11 | 2024-05-24 | 茂达电子股份有限公司 | Proximity sensor with slice-type integration time sensing mechanism and sensing method thereof |
| CN115014408A (en) * | 2021-09-17 | 2022-09-06 | 荣耀终端有限公司 | Electronic device |
| CN115236889A (en) * | 2022-07-25 | 2022-10-25 | 京东方科技集团股份有限公司 | Photosensitive circuit, control method thereof and display panel |
| CN115236889B (en) * | 2022-07-25 | 2023-10-13 | 京东方科技集团股份有限公司 | Photosensitive circuit, control method thereof and display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104182097B (en) | 2017-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104182097A (en) | Touch control terminal and method for preventing misjudgment of proximity sensor | |
| EP3715904A1 (en) | Time of flight assembly, terminal device and control method for time of flight assembly | |
| TWI472897B (en) | Method and Device of Automatically Adjusting Determination Voltage And Induction Type Power Supply System Thereof | |
| US11350222B2 (en) | Micro-electro-mechanical acoustic transducer device with improved detection features and corresponding electronic apparatus | |
| CN105680697B (en) | Switch power converter and flyback control method | |
| RU2018136756A (en) | LOGIC FOR IDENTIFICATION OF FAILURES IN THE OUTDOOR MONITOR OF READY TO WORK FOR THE AUTOMATIC OUTDOOR DEFIBRILLATOR (AND) | |
| JP5283516B2 (en) | Optical device, object detection method using the optical device, and electronic apparatus | |
| CN106022020B (en) | Optical detection touch screen unlocking device and method of mobile terminal | |
| TWM537765U (en) | Power supply apparatus with input voltage detection function | |
| CN204256193U (en) | A kind of detecting system of human body | |
| CN101446812A (en) | Control method and control device of state of equipment and equipment | |
| WO2019201130A1 (en) | Mobile terminal and infrared detection method | |
| JP2013156085A (en) | Photodetector, object detection sensor, and electronic apparatus | |
| US9782127B2 (en) | Photoelectric sphygmograph measurement device | |
| US8395487B2 (en) | Data carrier with sensor | |
| US20140111149A1 (en) | Battery and charging system using the same | |
| CN103595391A (en) | Intelligent photoelectric switch circuit | |
| JP2007228054A (en) | Light receiving circuit for optical reflection sensor | |
| US10509114B2 (en) | Photodetection device with synchronous and non-synchronous light detection for reducing noise and electronic apparatus | |
| US20200321377A1 (en) | System and method for optical sensing | |
| US9515907B2 (en) | Monitoring method of monitoring module | |
| CN219830116U (en) | Human body induction circuit based on pyroelectric | |
| TW201539929A (en) | Supplying-end module in induction-type power supply system and signal analysis circuit therein | |
| CN216490693U (en) | Image acquisition system and electronic equipment | |
| CN211855581U (en) | PIR motion sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171110 |