CN104280787B - Detect the apparatus and method of object proximity - Google Patents
Detect the apparatus and method of object proximity Download PDFInfo
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Abstract
Present invention is disclosed a kind of apparatus and method for detecting object proximity, the device of the detecting object proximity at least includes luminescent device, sensor devices and the barrier between luminescent device and sensor devices, wherein sensor devices at least include first, second photosensitive unit, first, second photosensitive unit is arranged in a linear and set successively away from shading wall, and the method for detecting object proximity using the device of above-mentioned detecting object proximity comprises the following steps：The photosensitive value of first and second photosensitive unit is persistently read according to predetermined time interval and is compared；It is judged as object proximity when the photosensitive value of the second photosensitive unit is more than the photosensitive value of first module；It is further continued for obtaining the photosensitive value of first and second photosensitive unit afterwards and is compared, is judged as that object is remote when the photosensitive value of the first photosensitive unit is more than the photosensitive value of the second photosensitive unit.
Description
【Technical field】
The invention belongs to electronic applications, particularly relate to be applied on electronic installation, for detect the method for object proximity with
Device.
【Background technology】
Mobile communication equipment of the prior art, such as smart mobile phone, typically using touch-screen.Then, the grade touch-screen
Power consumption is larger, and when user makes a phone call, is easily in contact with human body and causes some functions on touch-screen by false triggering,
So as to cause maloperation.Therefore, an optical proximity sensor is installed by the front in mobile communication equipment in the prior art, led to
Cross and judge the distance between face and equipment to judge and determine to turn off or on the display of mobile communication equipment touch-screen or touch
The upper corresponding function of screen is touched, to reach the purpose for preventing false touch or power saving.
Refer to shown in Fig. 1, be structure and work that existing optical proximity sensor is applied on device for mobile communication
Schematic diagram, the wherein proximity transducer include a luminescent device 42 (being usually infrared light LED) and sensor devices 43 are (independent for one
Optical sensor), and the periphery of luminescent device 42 and sensor devices 43 is provided with a housing 41, and the inside of housing 41 is provided with resistance
Retaining wall 411, so as to prevent the light that luminescent device 42 is launched from shining directly on sensor devices 43.In addition, the housing 41 is right
Answer the position of luminescent device 42 and sensor devices 43 to be provided with opening (non-label), the opening and be respectively equipped with lens 48 and 49.Again
Person, when specifically used, during as used on mobile phone, the luminescent device 42 is also covered with a transparency cover with the top of sensor devices 43
Plate 40.
The path of the major part for the light that luminescent device 42 is sent as shown in the reference numeral 45, the light be perforated through it is transparent
Cover plate 40 and be radiated at after reflecting surface 44 (face of such as user), reflected face 44 is reflected and is irradiated to sensor devices 43 again
On.
The whether close method of existing judgment object is the photosensitive value by obtaining sensor devices 43, afterwards with setting
One threshold value compares and determines whether object proximity, so as to perform the function of setting.Related prior art refers to application
Number be 201280041037.8 Chinese patent application.The weak point of such a method is that the threshold value of this setting is fixed, nothing
Method carries out the adjustment of adaptability according to the reflection condition of object, and such as object reflecting properties are preferable (reflecting surface such as of light color), then
Sensor devices object farther out when the data that are obtained just be more than threshold value, and if reflective surface poor-performing (such as color is deep
Reflecting surface), then only the object numerical value that sensor devices are obtained when close, just more than threshold value, thus causes carrying for judged result
It is preceding or delayed, so that corresponding control can not be better achieved.
To it is above-mentioned the problem of, the patent of invention of Patent No. 201210139955.6 is proposed a kind of calibrates to threshold value
Method, but its process is complicated, can not efficiently solve above mentioned problem.
To sum up, prior art is also based on being judged using threshold value, but using threshold value carry out judgement can not avoid it is above-mentioned
The problem of, so as to cause the above-mentioned utilization scope wideless, it is impossible to suitable for the object with different reflecting properties close to judgement.
【The content of the invention】
It is an object of the invention to provide a kind of apparatus and method for detecting object proximity, to solve root in the prior art
The problem of whether close applicable surface present in judgment object method be wideless is carried out according to threshold value.
To achieve the above object, implementing the device of the detecting object proximity of the present invention at least includes luminescent device, photoreceptor
Part and the barrier between luminescent device and sensor devices, wherein sensor devices at least include first, second photosensitive unit,
First, second photosensitive unit is arranged in a linear and set successively away from shading wall.
To achieve the above object, the present invention provides a kind of device detecting object proximity using above-mentioned detecting object proximity
Method, this method comprises the following steps：
The photosensitive value of first and second photosensitive unit is persistently read according to predetermined time interval and is compared；
It is judged as object proximity when the photosensitive value of the second photosensitive unit is more than the photosensitive value of first module；
It is judged as that object is remote when the photosensitive value of the first photosensitive unit is more than the photosensitive value of the second photosensitive unit afterwards.
To achieve the above object, the present invention provides a kind of electronic device touchscreen method of controlling switch, and the wherein electronics is filled
The device of a detecting object proximity is installed, the device of the detecting object proximity at least includes luminescent device, sensor devices and set
Barrier between luminescent device and sensor devices, wherein sensor devices at least include first, second photosensitive unit, and this
First, the second photosensitive unit is arranged in a linear and set successively away from shading wall, wherein electronic device touchscreen switch controlling party
Method comprises the following steps：
The photosensitive value of first and second photosensitive unit is persistently read according to predetermined time interval and is compared；
Touch-screen is closed when the photosensitive value of the second photosensitive unit is more than the photosensitive value of first module；
It is further continued for reading the photosensitive value of first and second photosensitive unit afterwards and is compared；
Touch-screen is opened when the photosensitive value of the first photosensitive unit is more than the photosensitive value of second unit.
To achieve the above object, implementing the device of the detecting object proximity of the present invention at least includes luminescent device, photoreceptor
It is photosensitive that part and the barrier between luminescent device and sensor devices, wherein sensor devices at least include first, second, third
Unit, first, second, third photosensitive unit is arranged in a linear and set successively away from barrier.
To achieve the above object, the present invention proposes a kind of device detecting object proximity using above-mentioned detecting object proximity
Method, this method comprises the following steps：
The photosensitive value of first, second, third photosensitive unit is read according to predetermined time interval；
Continue the photosensitive value of first, second, third photosensitive unit acquired in comparison；
When the maximum of the photosensitive value of this three photosensitive units is moved from the first photosensitive unit to the 3rd photosensitive unit, then
Think object proximity；
It is further continued for obtaining the photosensitive value of first, second, third photosensitive unit afterwards and is compared, when this three photosensitive list
When the maximum of the photosensitive value of member is moved from the 3rd photosensitive unit to the first photosensitive unit, then it is assumed that object is remote.
To achieve the above object, the present invention proposes a kind of electronic device touchscreen method of controlling switch, and the wherein electronics is filled
The device of a detecting object proximity is installed, the device of the detecting object proximity at least includes luminescent device, sensor devices and set
Barrier between luminescent device and sensor devices, wherein sensor devices at least include first, second, third photosensitive unit,
First, second, third photosensitive unit is arranged in a linear and set successively away from barrier, and wherein the electronic device touchscreen is opened
Control method is closed to comprise the following steps：
The photosensitive value of first, second, third photosensitive unit is persistently read according to predetermined time interval and is compared；
Closed when the maximum of the photosensitive value of this three photosensitive units is moved from the first photosensitive unit to the 3rd photosensitive unit
Close touch-screen；
Be further continued for afterwards obtain this first, second, third photosensitive unit photosensitive value and be compared, when this three it is photosensitive
The maximum of the photosensitive value of unit opens touch-screen when being moved from the 3rd photosensitive unit to the first photosensitive unit.
To achieve the above object, the present invention provides a kind of device for detecting object proximity, the device of the detecting object proximity
At least include luminescent device, sensor devices and the barrier between luminescent device and sensor devices, wherein sensor devices extremely
Include multiple photosensitive units less, the plurality of photosensitive unit is arranged in a linear and set successively away from barrier.
To achieve the above object, the present invention proposes a kind of device detecting object proximity using above-mentioned detecting object proximity
Method, this method comprises the following steps：
The photosensitive value of the plurality of photosensitive unit is read according to predetermined time interval；
Continue the photosensitive value of the plurality of photosensitive unit acquired in comparison；
When the maximum of the photosensitive value of this multiple photosensitive unit is moved to the direction away from barrier, then it is assumed that object connects
Closely；
It is further continued for obtaining the photosensitive value of this multiple photosensitive unit afterwards and is compared, it is photosensitive when this multiple photosensitive unit
When the maximum of value is to close to the movement of the direction of barrier, then it is assumed that object is remote.
To achieve the above object, the present invention proposes a kind of electronic device touchscreen method of controlling switch, and the wherein electronics is filled
The device of a detecting object proximity is installed, the device of the detecting object proximity at least includes luminescent device, sensor devices and set
Barrier between luminescent device and sensor devices, wherein sensor devices at least include multiple photosensitive units, the plurality of photosensitive
Unit is arranged in a linear and set successively away from barrier, and wherein the electronic device touchscreen method of controlling switch includes following step
Suddenly：
The photosensitive value of this multiple photosensitive unit is persistently read according to predetermined time interval and is compared；
Touch-screen is closed when the maximum of the photosensitive value of this multiple photosensitive unit is moved to the direction away from barrier；
It is further continued for obtaining the photosensitive value of this multiple photosensitive unit afterwards and is compared, it is photosensitive when this multiple photosensitive unit
The maximum of value opens touch-screen when being moved to the direction close to barrier.
Compared with prior art, the present invention continues the plurality of photosensitive list of comparison afterwards by setting multiple photosensitive units
Member photosensitive value, according to the moving direction judgment object of the maximum of the photosensitive value of this multiple photosensitive unit close to or away from,
So size not using photosensitive value is as basis for estimation, so that suitable for the object with different reflecting properties close to judgement,
With the wider array of scope of application.
【Brief description of the drawings】
Fig. 1 is the structure and operating diagram that existing optical proximity sensor is applied on device for mobile communication.
Fig. 2 and Fig. 3 is the operating diagram for implementing the first embodiment of the present invention.
Fig. 4 is the schematic flow sheet of the first embodiment for the method for implementing the detecting object proximity of the present invention.
Fig. 5 to Fig. 7 is the operating diagram for implementing the second embodiment of the present invention.
Fig. 8 is the operating diagram for implementing the third embodiment of the present invention.
【Embodiment】
Refer to shown in Fig. 2 and Fig. 3, to implement the operating diagram of the first embodiment of the present invention, wherein implementing this hair
The device of bright detecting object proximity at least includes luminescent device 10, sensor devices 11 and located at luminescent device 10 and sensor devices
Barrier 12 between 11, wherein sensor devices 11 include first and second photosensitive unit 110,111, linearly and remote successively
Barrier 12 is set.And it is provided with a glass cover-plate 13 in luminescent device 10, sensor devices 11 and the top of barrier 12.In addition,
In the specific implementation, luminescent device 10 and the top of sensor devices 11 can also set some optical lenses, and its structure and work are former
Reason has announcement in the prior art, no longer describes in detail herein.
As shown in figure 1, when reflecting surface 14 (i.e. object) apart from the detecting object proximity device 1 farther out when, luminescent device
It is most of to be radiated at apart from immediate first photosensitive unit of barrier 12 after the reflected face 14 of light of 10 transmittings is reflected
On 110, now the photosensitive value of the first photosensitive unit 110 is compared with the photosensitive value of the second photosensitive unit 111, the first photosensitive unit
110 photosensitive value is more than the photosensitive value of the second photosensitive unit 111.
And as shown in Fig. 2 when reflecting surface (i.e. object) is nearer apart from the device 1 of the detecting object proximity, luminescent device
After the reflected face reflection of light of 10 transmittings, major part is radiated on the second photosensitive unit 111, now the second photosensitive unit
111 photosensitive value is more than the photosensitive value of the first photosensitive unit 110.
Therefore, whether approached using the value detecting object of the first photosensitive unit and the second photosensitive unit, specifically such as Fig. 4 institutes
Show, the method for detecting object proximity using the device of above-mentioned detecting object proximity comprises the following steps：
The photosensitive value of first and second photosensitive unit is persistently read according to predetermined time interval and is compared；
It is judged as object proximity when the photosensitive value of the second photosensitive unit is more than the photosensitive value of first module；
It is further continued for obtaining the photosensitive value of first and second photosensitive unit afterwards and is compared, when the sense of the first photosensitive unit
Light value is judged as that object is remote when being more than the photosensitive value of the second photosensitive unit.
Profit with the aforedescribed process, can carry out switch control, i.e., by according to predetermined time interval to electronic device touchscreen
Persistently read the photosensitive value of first and second photosensitive unit and be compared；When the photosensitive value of the second photosensitive unit is more than the first list
Touch-screen is closed during the photosensitive value of member；Persistently read the photosensitive value of first and second photosensitive unit again afterwards and be compared；When
The photosensitive value of first photosensitive unit opens touch-screen when being more than the photosensitive value of second unit.When being especially applicable on mobile phone,
When user by mobile phone close to face when, the photosensitive value of the first photosensitive unit is from diminishing greatly, and the photosensitive value of the second photosensitive unit
Become big from small, so when the photosensitive value of the second photosensitive unit is more than the photosensitive value of the first photosensitive unit, then it is assumed that mobile phone has been put
Put apart from the suitable position of face, it is believed that be that user receives calls, so that closing touch-screen (now closes touch-screen master
If close corresponding function on display or touch-screen prevents the purpose of false touch or power saving to reach).When user has answered electricity
After words, when mobile phone is distally taken from the position close to face, then the photosensitive value of the second photosensitive unit is from diminishing greatly, and first feels
The photosensitive value of light unit becomes big from small, and touch is then opened when the photosensitive value of the first photosensitive unit is more than the photosensitive value of second unit
Screen, makes user normally use mobile phone.
Refer to shown in Fig. 5 to Fig. 8, for the work for the second embodiment for implementing the device for detecting object proximity of the invention
Schematic diagram, wherein the device for implementing the detecting object proximity of the present invention at least includes luminescent device 20, sensor devices 21 and is located at
Barrier 22 between luminescent device 20 and sensor devices 21, wherein sensor devices 21 include three photosensitive units, and respectively the
First, second, third photosensitive unit 210,211,212, is set linearly and away from barrier 22 successively.
In addition, being provided with a glass cover-plate 23 in luminescent device 20, sensor devices 21 and the top of barrier 22.In addition, in tool
When body is implemented, luminescent device 20 and the top of sensor devices 21 can also set some optical lenses, and its structure and working principle exists
There is announcement in the prior art, no longer describe in detail herein.
As shown in figure 5, when reflecting surface 24 (i.e. object) apart from the detecting object proximity device farther out when, luminescent device 20
It is most of to be radiated on immediate first photosensitive unit 210 of barrier 22 after the reflected face reflection of light of transmitting,
Now the photosensitive value of the first photosensitive unit 210 is compared with the photosensitive value of second and third photosensitive unit 211 and 212, and first is photosensitive
The photosensitive value of unit 210 is maximum.
And as shown in fig. 6, when reflecting surface (i.e. object) apart from the detecting object proximity device apart from it is moderate when, now
First, the photosensitive value of second and third photosensitive unit 210,211,212 is compared, and the photosensitive value of the second photosensitive unit 210 is maximum.
As shown in fig. 7, when reflecting surface (i.e. object) is nearer apart from the device of the detecting object proximity, luminescent device 20 is sent out
It is most of to be radiated on the 3rd photosensitive unit 212 farthest apart from barrier 22 after the reflected face reflection of light penetrated, now
The photosensitive value of first, second and third photosensitive unit 210,211,212 is compared, and the photosensitive value of the 3rd photosensitive unit 210 is maximum.
Using above-mentioned device, it can detect whether object approaches, specific method is as follows：
The photosensitive value of first, second, third photosensitive unit is read according to predetermined time interval；
Continue the photosensitive value of first, second, third photosensitive unit acquired in comparison；
When the maximum of the photosensitive value of this three photosensitive units is moved from the first photosensitive unit to the 3rd photosensitive unit, then
It is judged as object proximity；
It is further continued for obtaining the photosensitive value of first, second, third photosensitive unit afterwards and is compared, when this three photosensitive list
When the maximum of the photosensitive value of member is moved from the 3rd photosensitive unit to the first photosensitive unit, then it is judged as that object is remote.
Profit with the aforedescribed process, can carry out switch control, i.e., by according to predetermined time interval to electronic device touchscreen
Persistently read the photosensitive value of first, second, third photosensitive unit and be compared；
Closed when the maximum of the photosensitive value of this three photosensitive units is moved from the first photosensitive unit to the 3rd photosensitive unit
Close touch-screen；In the specific implementation, it may be selected to close when the photosensitive value of the second photosensitive unit or the 3rd photosensitive unit is maximum and touch
Screen is touched, touch-screen is closed when the photosensitive value of the second photosensitive unit or the 3rd photosensitive unit is maximum then according to specific as selection
Setting.When closing touch-screen when the second photosensitive unit photosensitive value is maximum certainly then the time earlier, more power saving.
Afterwards when the maximum of the photosensitive value of this three photosensitive units is moved from the 3rd photosensitive unit to the first photosensitive unit
Shi Kaiqi touch-screens.In the specific implementation, it may be selected to open when the photosensitive value of the second photosensitive unit or the first photosensitive unit is maximum
Open touch-screen.Touch-screen then foundation is opened when the photosensitive value of the second photosensitive unit or the first photosensitive unit is maximum as selection
It is specific to set.Then the time is earlier when opening touch-screen when the second photosensitive unit photosensitive value is maximum certainly.Specific principle and
Example refers to the description in first embodiment, no longer describes in detail herein.
Refer to shown in Fig. 8,, can be with specific implementation to implement the operating diagram of the third embodiment of the present invention
Set and A, B, C, D, E, F six is provided with multiple photosensitive units, such as Fig. 8.If when the maximum photosensitive unit of photosensitive value is felt from A
When light unit is moved to the direction of F photosensitive units successively, i.e., when being followed successively by A, B, C, D such as the maximum photosensitive unit of photosensitive value, then
Judgment object is approached.It is judgment standard that any photosensitive unit (preferable in the middle of certainly), which can now be selected, then this photosensitive unit
Photosensitive value it is maximum when then perform corresponding function (as closed touch-screen).It is further continued for obtaining the photosensitive value of each photosensitive unit afterwards
And be compared, when the maximum photosensitive unit of photosensitive value is moved to the direction of A photosensitive units successively from F photosensitive units, i.e., such as
When the maximum photosensitive unit of photosensitive value is followed successively by F, E, D, C, then judgment object is remote.Any photosensitive unit can now be selected
(preferable in the middle of certainly) is judgment standard, then corresponding function is then performed when the photosensitive value of this photosensitive unit is maximum (as opened
Touch-screen).
It can be then configured or be entered by user by manufacturer for judgment standard as which specifically chosen photosensitive unit
Row selection (mode of screen intensity function setting in similar mobile phone) performs corresponding function in what position (such as to be turned off or on tactile
Touch screen).
In specific implementation, the device of the detecting object proximity is a single chip, i.e., by luminescent device and multiple
Photosensitive unit is packaged together.And in actually implementing, the plurality of photosensitive unit is an optic sensor array, and each
Photosensitive unit can be the one or more columns per page of the optic sensor array, and such as optic sensor array has 6 row, in second embodiment
In, the 1st row can be arranged as the first photosensitive unit with the 2nd, the 3rd row are used as the second photosensitive unit, the 5th row and the 6th row with the 4th row
It is used as the 3rd photosensitive unit.Interval can also be formed between certain photosensitive unit.Afterwards by by the photosensitive of the related column of reading
Value is handled and as the photosensitive value of corresponding photosensitive unit.
It is understood that for those of ordinary skills, can be with technique according to the invention scheme and its hair
Bright design is subject to equivalent substitution or change, and all these changes or replacement should all belong to the guarantor of appended claims of the invention
Protect scope.
Claims (6)
1. a kind of dress of the method, wherein the detecting object proximity of the device detecting object proximity that object proximity is detected using one
Put, the barrier at least including luminescent device, sensor devices and between luminescent device and sensor devices, the sensor devices are extremely
Include first, second photosensitive unit less, first, second photosensitive unit is arranged in a linear and set successively away from shading wall, its
It is characterised by that this method comprises the following steps：
The photosensitive value of first and second photosensitive unit is persistently read according to predetermined time interval and is compared；
It is judged as object proximity when the photosensitive value of the second photosensitive unit is more than the photosensitive value of the first photosensitive unit；
It is further continued for obtaining the photosensitive value of first and second photosensitive unit afterwards and is compared, when the photosensitive value of the first photosensitive unit
More than the second photosensitive unit photosensitive value when be judged as that object is remote.
2. a kind of device of electronic device touchscreen method of controlling switch, the wherein electronic installation provided with a detecting object proximity,
The device of the detecting object proximity at least includes luminescent device, sensor devices and the resistance between luminescent device and sensor devices
Retaining wall, wherein sensor devices at least include first, second photosensitive unit, first, second photosensitive unit be arranged in a linear and according to
Secondary to be set away from shading wall, wherein the electronic device touchscreen method of controlling switch comprises the following steps：
The photosensitive value of first and second photosensitive unit is persistently read according to predetermined time interval and is compared；
Touch-screen is closed when the photosensitive value of the second photosensitive unit is more than the photosensitive value of the first photosensitive unit；
It is further continued for obtaining the photosensitive value of first, second photosensitive unit afterwards and is compared；
Touch-screen is opened when the photosensitive value of the first photosensitive unit is more than the photosensitive value of the second photosensitive unit.
3. a kind of method for detecting object proximity using a device for detecting object proximity, the device of the detecting object proximity is at least
Barrier including luminescent device, sensor devices and between luminescent device and sensor devices, it is characterised in that：The photoreceptor
Part at least includes first, second, third photosensitive unit, and first, second, third photosensitive unit is arranged in a linear and remote successively
Barrier is set, and this method comprises the following steps：
The photosensitive value of first, second, third photosensitive unit is read according to predetermined time interval；
Continue the photosensitive value of first, second, third photosensitive unit acquired in comparison；
When the maximum of the photosensitive value of this three photosensitive units is moved from the first photosensitive unit to the 3rd photosensitive unit, then it is assumed that
Object proximity；
It is further continued for obtaining the photosensitive value of first, second, third photosensitive unit afterwards and is compared, when this three photosensitive unit
When the maximum of photosensitive value is moved from the 3rd photosensitive unit to the first photosensitive unit, then it is assumed that object is remote.
4. a kind of device of electronic device touchscreen method of controlling switch, the wherein electronic installation provided with a detecting object proximity,
The device of the detecting object proximity at least includes luminescent device, sensor devices and the resistance between luminescent device and sensor devices
Retaining wall, wherein sensor devices at least include first, second, third photosensitive unit, and first, second, third photosensitive unit is in straight
Line is arranged and set successively away from barrier, and wherein the electronic device touchscreen method of controlling switch comprises the following steps：
The photosensitive value of first, second, third photosensitive unit is persistently read according to predetermined time interval and is compared；
Close and touch when the maximum of the photosensitive value of this three photosensitive units is moved from the first photosensitive unit to the 3rd photosensitive unit
Touch screen；
It is further continued for obtaining the photosensitive value of first, second, third photosensitive unit afterwards and is compared, when this three photosensitive unit
The maximum of photosensitive value opens touch-screen when being moved from the 3rd photosensitive unit to the first photosensitive unit.
5. a kind of dress of the method, wherein the detecting object proximity of the device detecting object proximity that object proximity is detected using one
Put, the device of the detecting object proximity at least includes luminescent device, sensor devices and between luminescent device and sensor devices
Barrier, wherein sensor devices at least include multiple photosensitive units, and the plurality of photosensitive unit is arranged in a linear and remote successively
Barrier is set, and this method comprises the following steps：
The photosensitive value of the plurality of photosensitive unit is read according to predetermined time interval；
Continue the photosensitive value of the plurality of photosensitive unit acquired in comparison；
When the maximum of the photosensitive value of this multiple photosensitive unit is moved to the direction away from barrier, then it is assumed that object proximity；
It is further continued for obtaining the photosensitive value of this multiple photosensitive unit afterwards and is compared, when the photosensitive value of this multiple photosensitive unit
When maximum is to close to the movement of the direction of barrier, then it is assumed that object is remote.
6. a kind of device of electronic device touchscreen method of controlling switch, the wherein electronic installation provided with a detecting object proximity,
The device of the detecting object proximity at least includes luminescent device, sensor devices and the resistance between luminescent device and sensor devices
Retaining wall, wherein sensor devices at least include multiple photosensitive units, and the plurality of photosensitive unit is arranged in a linear and successively away from stop
Wall is set, and wherein the electronic device touchscreen method of controlling switch comprises the following steps：
The photosensitive value of the plurality of photosensitive unit is persistently read according to predetermined time interval and is compared；
Touch-screen is closed when the maximum of the photosensitive value of this multiple photosensitive unit is moved to the direction away from barrier；
It is further continued for obtaining the photosensitive value of this multiple photosensitive unit afterwards and is compared, when the photosensitive value of this multiple photosensitive unit
Maximum opens touch-screen when being moved to the direction close to barrier.
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| CN201410448700.7A CN104280787B (en) | 2014-09-04 | 2014-09-04 | Detect the apparatus and method of object proximity |
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| CN201410448700.7A CN104280787B (en) | 2014-09-04 | 2014-09-04 | Detect the apparatus and method of object proximity |
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| TWI570400B (en) * | 2015-08-17 | 2017-02-11 | 原相科技股份有限公司 | Optical detecting device capable of preventing light leakage |
| CN106775137B (en) * | 2016-12-06 | 2019-10-25 | Oppo广东移动通信有限公司 | Proximity test method, device and mobile terminal |
| CN107193010B (en) * | 2017-06-27 | 2019-05-07 | 艾普柯微电子（上海）有限公司 | Photosensitive element and range-measurement system |
| US11116059B2 (en) * | 2019-04-30 | 2021-09-07 | Sensortek Technology Corp. | Proximity sensor operating method and proximity sensor applying the method |
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| JP4586462B2 (en) * | 2004-09-02 | 2010-11-24 | 日本電気株式会社 | Mobile device |
| US7469839B2 (en) * | 2005-09-14 | 2008-12-30 | Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. | Reflective optical encoder |
| JP5198394B2 (en) * | 2009-09-04 | 2013-05-15 | シャープ株式会社 | Proximity illuminance sensor and manufacturing method thereof |
| TWI413924B (en) * | 2010-02-09 | 2013-11-01 | Trust Technology Co Ltd | Method for detecting position |
| TW201222323A (en) * | 2010-11-30 | 2012-06-01 | Hon Hai Prec Ind Co Ltd | Electronic device having proximity detection function |
| CN103425275A (en) * | 2012-05-17 | 2013-12-04 | 原相科技股份有限公司 | Sensing module and sensing method both applied to optical mouse and provided with electricity-saving function |
| CN103926629B (en) * | 2013-01-11 | 2017-03-08 | 原相科技股份有限公司 | optical device, photosensitive element using microlens and manufacturing method thereof |
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