CN106850943B - A kind of device and method detecting terminal at a distance from shelter - Google Patents
A kind of device and method detecting terminal at a distance from shelter Download PDFInfo
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- CN106850943B CN106850943B CN201611116858.XA CN201611116858A CN106850943B CN 106850943 B CN106850943 B CN 106850943B CN 201611116858 A CN201611116858 A CN 201611116858A CN 106850943 B CN106850943 B CN 106850943B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72418—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for supporting emergency services
- H04M1/72421—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for supporting emergency services with automatic activation of emergency service functions, e.g. upon sensing an alarm
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72457—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to geographic location
Abstract
The invention discloses a kind of device and method of detection terminal at a distance from shelter, which includes: that judgment module judges the intensity for the infrared signal that shelter reflects；When the intensity for determining infrared signal is greater than the first intensity threshold, determining module determines that shelter and terminal distance are less than or equal to first distance threshold value；When determining intensity less than the second intensity threshold, determining module determines that shelter and terminal distance are greater than or equal to second distance threshold value；Second intensity threshold is less than second distance threshold value less than the first intensity threshold, first distance threshold value；When determining that intensity is greater than third intensity threshold, the first intensity threshold is updated to infrared signal full scale and is most worth and gradually updates the second intensity threshold by update module；Third intensity threshold is greater than the first intensity threshold.The present invention is updated infrared signal intensity threshold by greasy dirt offset, in infrared sensor tapping there are accurate judgement terminal when greasy dirt and shelter distance, smoothly performs go out screen and the operation of bright screen.
Description
Technical field
The present invention relates to the information processing technology, device and method of espespecially a kind of detection terminal at a distance from shelter.
Background technique
With the universal and development of mobile terminal, the function of mobile terminal is also increasingly various, but making and receiving calls is still use
The purposes that family frequently uses.During making and receiving calls, for the touch screen for preventing false triggering mobile terminal, need using infrared
Proximity sensor judges whether there is shelter close to mobile terminal.When judgement has shelter close to mobile terminal, mobile terminal
Execution, which is gone out, shields operation；When judgement has shelter far from mobile terminal, the bright screen operation of mobile terminal execution.
However, infrared proximity transducer can not be judged whether there is accurately and be blocked when mobile terminal surface is there are when greasy dirt
Object causes mobile terminal that can not execute the screen operation and bright of going out according to user's communication process close to mobile terminal or far from mobile terminal
Screen operation.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides device and side of a kind of detection terminal at a distance from shelter
Method, the tapping for the infrared sensor that can be arranged at the terminal there are greasy dirt in the case where accurate judgement terminal and shelter
Distance smoothly executes go out screen and the operation of bright screen.
In order to reach the object of the invention, the present invention provides a kind of device of detection terminal at a distance from shelter, the dresses
Set includes: judgment module, determining module and update module.
Judgment module judges for the intensity to the infrared signal reflected through shelter.
Determining module, for determining shelter when the intensity for determining infrared signal is greater than preset first intensity threshold
With at a distance from terminal be less than or equal to preset first distance threshold value.
Determining module is also used to when the intensity for determining infrared signal is less than preset second intensity threshold, and determination is blocked
Object is greater than or equal to preset second distance threshold value at a distance from terminal；Wherein, the second intensity threshold is less than the first intensity threshold,
First distance threshold value is less than second distance threshold value.
Update module, for determining end panel when the intensity for determining infrared signal is greater than preset third intensity threshold
There are greasy dirt on curtain, the first intensity threshold is updated to infrared signal full scale and is most worth, and gradually updates the second intensity threshold；Its
In, third intensity threshold is greater than the first intensity threshold.
Optionally, update module is also used to:
There are after greasy dirt on determining terminal screen, before gradually updating the second intensity threshold, by the second intensity threshold
Value is added with preset first greasy dirt offset, using obtained result as updated second intensity threshold.
Optionally, update module gradually updates second intensity threshold and includes:
When the intensity for detecting infrared signal is reduced to updated second intensity threshold, by updated second intensity
Threshold value is updated to the 4th intensity threshold；Wherein the 4th intensity threshold is less than updated second intensity threshold；
When the intensity of infrared signal no longer reduces and after the intensity stabilization of infrared signal, if current infrared signal
Intensity is greater than the 4th intensity threshold, then keeps the 4th intensity threshold constant；
When the intensity of infrared signal no longer reduces and after the intensity stabilization of infrared signal, if current infrared signal
Intensity is less than or equal to the 4th intensity threshold, then the 4th intensity threshold is updated to the 5th intensity threshold；Wherein the 5th intensity threshold
Value is less than the intensity of current infrared signal.
Optionally, update module is also used to:
The intensity of current infrared signal after stabilization is subtracted into the dry value in preset bottom, obtains the second greasy dirt offset, and will
First greasy dirt offset is updated to the second greasy dirt offset.
Optionally, update module is also used to:
After the first greasy dirt offset is updated to the second greasy dirt offset, the first intensity threshold is completely measured by infrared signal
Journey most value is updated to the first initial intensity threshold plus the second greasy dirt offset；
Wherein the first initial intensity threshold refers to the first intensity threshold before being updated to infrared signal full scale most value.
In addition, the present invention also provides a kind of side of detection terminal at a distance from shelter in order to reach the object of the invention
Method, this method comprises:
The intensity of the infrared signal reflected through shelter is judged；
When the intensity for determining infrared signal is greater than preset first intensity threshold, determine that shelter is small at a distance from terminal
In or equal to preset first distance threshold value；
When the intensity for determining infrared signal is less than preset second intensity threshold, determine that shelter is big at a distance from terminal
In or equal to preset second distance threshold value；Wherein, the second intensity threshold is less than less than the first intensity threshold, first distance threshold value
Second distance threshold value；
When the intensity for determining infrared signal is greater than preset third intensity threshold, determine on terminal screen there are greasy dirt,
First intensity threshold is updated to infrared signal full scale to be most worth, and gradually updates the second intensity threshold；Wherein, third intensity threshold
Value is greater than the first intensity threshold.
Optionally, this method further include:
There are after greasy dirt on determining terminal screen, before gradually updating the second intensity threshold, by the second intensity threshold
Value is added with preset first greasy dirt offset, using obtained result as updated second intensity threshold.
Optionally, gradually updating the second intensity threshold includes:
When the intensity for detecting infrared signal is reduced to updated second intensity threshold, by updated second intensity
Threshold value is updated to the 4th intensity threshold；Wherein the 4th intensity threshold is less than updated second intensity threshold；
When the intensity of infrared signal no longer reduces and after the intensity stabilization of infrared signal, if current infrared signal
Intensity is greater than the 4th intensity threshold, then keeps the 4th intensity threshold constant；
When the intensity of infrared signal no longer reduces and after the intensity stabilization of infrared signal, if current infrared signal
Intensity is less than or equal to the 4th intensity threshold, then the 4th intensity threshold is updated to the 5th intensity threshold；Wherein the 5th intensity threshold
Value is less than the intensity of current infrared signal.
Optionally, this method further include:
The intensity of current infrared signal after stabilization is subtracted into the dry value in preset bottom, obtains the second greasy dirt offset, and will
First greasy dirt offset is updated to the second greasy dirt offset.
Optionally, this method further include:
After the first greasy dirt offset is updated to the second greasy dirt offset, the first intensity threshold is completely measured by infrared signal
Journey most value is updated to the first initial intensity threshold plus the second greasy dirt offset；
Wherein the first initial intensity threshold refers to the first intensity threshold before being updated to infrared signal full scale most value.
Compared with prior art, the embodiment of the present invention is by greasy dirt offset to for judging shelter at a distance from terminal
The intensity threshold of infrared signal be updated, there are in the case where greasy dirt for the tapping for the infrared sensor being arranged at the terminal
Terminal is accurately judged at a distance from shelter, smoothly performs go out screen and the operation of bright screen.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
The hardware structural diagram of Fig. 1 mobile terminal of each embodiment to realize the present invention；
Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；
Fig. 3 is device composition block diagram of the detection terminal of the embodiment of the present invention at a distance from shelter；
Fig. 4 is method flow diagram of the detection terminal of the embodiment of the present invention at a distance from shelter；
Fig. 5 is conventional infrared sensor working principle diagram；
Fig. 6 is the change curve schematic diagram between the intensity of the infrared signal of the embodiment of the present invention and distance；
Fig. 7 is that schematic diagram is arranged in the intensity threshold of the infrared signal of the embodiment of the present invention；
Fig. 8 is the method schematic diagram for gradually updating the second intensity threshold of the embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
The terminal of each embodiment of the present invention is realized in description with reference to the drawings.In subsequent description, using being used for
The suffix of such as " module ", " component " or " unit " of element is indicated only for being conducive to explanation of the invention, itself is not
There is specific meaning.Therefore, " module " can be used mixedly with " component ".
Terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as mobile phone,
Smart phone, laptop, digit broadcasting receiver, PDA (personal digital assistant), PAD (tablet computer), PMP are (portable
Multimedia player), the fixed terminal of the mobile terminal of navigation device etc. and such as number TV, desktop computer etc..
Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that in addition to being used in particular for mobile purpose
Except element, the construction of embodiment according to the present invention can also apply to the terminal of fixed type.
Fig. 1 to realize the present invention the mobile terminal of each embodiment hardware configuration signal.
Mobile terminal 100 may include wireless communication unit 110, A/V (audio/video) input unit 120, user's input
Unit 130, sensing unit 140, output unit 150, memory 160, interface unit 170, controller 180 and power supply unit 190
Etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing all groups shown
Part.More or fewer components can alternatively be implemented.The element of mobile terminal will be discussed in more detail below.
Wireless communication unit 110 generally includes one or more components, allows mobile terminal 100 and wireless communication system
Or the radio communication between network.For example, wireless communication unit may include broadcasting reception module 111, mobile communication module
112, at least one of wireless Internet module 113, short range communication module 114 and location information module 115.
Broadcasting reception module 111 receives broadcast singal and/or broadcast from external broadcast management server via broadcast channel
Relevant information.Broadcast channel may include satellite channel and/or terrestrial channel.Broadcast management server, which can be, to be generated and sent
The broadcast singal and/or broadcast related information generated before the server or reception of broadcast singal and/or broadcast related information
And send it to the server of terminal.Broadcast singal may include TV broadcast singal, radio signals, data broadcasting
Signal etc..Moreover, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast phase
Closing information can also provide via mobile communications network, and in this case, broadcast related information can be by mobile communication mould
Block 112 receives.Broadcast singal can exist in a variety of manners, for example, it can be with the electronics of digital multimedia broadcasting (DMB)
Program guide (EPG), digital video broadcast-handheld (DVB-H) electronic service guidebooks (ESG) etc. form and exist.Broadcast
Receiving module 111 can receive signal broadcast by using various types of broadcast systems.Particularly, broadcasting reception module 111
It can be wide by using such as multimedia broadcasting-ground (DMB-T), digital multimedia broadcasting-satellite (DMB-S), digital video
It broadcasts-holds (DVB-H), the Radio Data System of forward link media (MediaFLO@), received terrestrial digital broadcasting integrated service
(ISDB-T) etc. digit broadcasting system receives digital broadcasting.Broadcasting reception module 111, which may be constructed such that, to be adapted to provide for extensively
Broadcast the various broadcast systems and above-mentioned digit broadcasting system of signal.Via the received broadcast singal of broadcasting reception module 111 and/
Or broadcast related information can store in memory 160 (or other types of storage medium).
Mobile communication module 112 sends radio signals to base station (for example, access point, node B etc.), exterior terminal
And at least one of server and/or receive from it radio signal.Such radio signal may include that voice is logical
Talk about signal, video calling signal or according to text and/or Multimedia Message transmission and/or received various types of data.
The Wi-Fi (Wireless Internet Access) of the support mobile terminal of wireless Internet module 113.The module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved in the module may include WLAN (Wireless LAN) (Wi-Fi), Wibro
(WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..
Short range communication module 114 is the module for supporting short range communication.Some examples of short-range communication technology include indigo plant
Tooth TM, radio frequency identification (RFID), Infrared Data Association (IrDA), ultra wide band (UWB), purple honeybee TM etc..
Location information module 115 is the module for checking or obtaining the location information of mobile terminal.Location information module
Typical case be GPS (global positioning system).According to current technology, GPS module 115, which calculates, comes from three or more satellites
Range information and correct time information and the Information application triangulation for calculating, thus according to longitude, latitude
Highly accurately calculate three-dimensional current location information.Currently, it is defended for the method for calculating position and temporal information using three
Star and the error that calculated position and temporal information are corrected by using an other satellite.In addition, GPS module 115
It can be by Continuous plus current location information in real time come calculating speed information.
A/V input unit 120 is for receiving audio or video signal.A/V input unit 120 may include 121 He of camera
Microphone 1220, camera 121 is to the static map obtained in video acquisition mode or image capture mode by image capture apparatus
The image data of piece or video is handled.Treated, and picture frame may be displayed on display unit 151.At camera 121
Picture frame after reason can store in memory 160 (or other storage mediums) or carry out via wireless communication unit 110
It sends, two or more cameras 1210 can be provided according to the construction of mobile terminal.Microphone 122 can be in telephone relation mould
Sound (audio data) is received via microphone in formula, logging mode, speech recognition mode etc. operational mode, and can be incited somebody to action
Such acoustic processing is audio data.Audio that treated (voice) data can be converted in the case where telephone calling model
For the format output that can be sent to mobile communication base station via mobile communication module 112.Various types can be implemented in microphone 122
Noise eliminate (or inhibit) algorithm with eliminate noise that (or inhibition) generates during sending and receiving audio signal or
Person's interference.
The order that user input unit 130 can be inputted according to user generates key input data to control each of mobile terminal
Kind operation.User input unit 130 allows user to input various types of information, and may include keyboard, metal dome, touch
Plate (for example, the sensitive component of detection due to the variation of resistance, pressure, capacitor etc. caused by being contacted), idler wheel, rocking bar etc.
Deng.Particularly, when touch tablet is superimposed upon in the form of layer on display unit 151, touch screen can be formed.
Sensing unit 140 detects the current state of mobile terminal 100, (for example, mobile terminal 100 opens or closes shape
State), the position of mobile terminal 100, user is for the presence or absence of contact (that is, touch input) of mobile terminal 100, mobile terminal
100 orientation, the acceleration or deceleration movement of mobile terminal 100 and direction etc., and generate for controlling mobile terminal 100
The order of operation or signal.For example, sensing unit 140 can sense when mobile terminal 100 is embodied as sliding-type mobile phone
The sliding-type phone is to open or close.In addition, sensing unit 140 be able to detect power supply unit 190 whether provide electric power or
Whether person's interface unit 170 couples with external device (ED).Sensing unit 140 may include that proximity sensor 1410 will combine below
Touch screen is described this.
Interface unit 170 be used as at least one external device (ED) connect with mobile terminal 100 can by interface.For example,
External device (ED) may include wired or wireless headphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Identification module can be storage and use each of mobile terminal 100 for verifying user
It plants information and may include subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM)
Etc..In addition, the device (hereinafter referred to as " identification device ") with identification module can take the form of smart card, therefore, know
Other device can be connect via port or other attachment devices with mobile terminal 100.Interface unit 170, which can be used for receiving, to be come from
The input (for example, data information, electric power etc.) of external device (ED) and the input received is transferred in mobile terminal 100
One or more elements can be used for transmitting data between mobile terminal and external device (ED).
In addition, when mobile terminal 100 is connect with external base, interface unit 170 may be used as allowing will be electric by it
Power, which is provided from pedestal to the path or may be used as of mobile terminal 100, allows the various command signals inputted from pedestal to pass through it
It is transferred to the path of mobile terminal.The various command signals or electric power inputted from pedestal, which may be used as mobile terminal for identification, is
The no signal being accurately fitted on pedestal.Output unit 150 is configured to provide with vision, audio and/or tactile manner defeated
Signal (for example, audio signal, vision signal, alarm signal, vibration signal etc.) out.Output unit 150 may include display
Unit 151, audio output module 152, alarm unit 153 etc..
Display unit 151 may be displayed on the information handled in mobile terminal 100.For example, when mobile terminal 100 is in electricity
When talking about call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia file
Downloading etc.) relevant user interface (UI) or graphic user interface (GUI).When mobile terminal 100 is in video calling mode
Or when image capture mode, display unit 151 can show captured image and/or received image, show video or figure
Picture and the UI or GUI of correlation function etc..
Meanwhile when display unit 151 and touch tablet in the form of layer it is superposed on one another to form touch screen when, display unit
151 may be used as input unit and output device.Display unit 151 may include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
It is a kind of.Some in these displays may be constructed such that transparence to allow user to watch from outside, this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
Desired embodiment, mobile terminal 100 may include two or more display units (or other display devices), for example, moving
Dynamic terminal may include outernal display unit (not shown) and inner display unit (not shown).Touch screen can be used for detecting touch
Input pressure and touch input position and touch input area.
Audio output module 152 can mobile terminal be in call signal reception pattern, call mode, logging mode,
It is when under the isotypes such as speech recognition mode, broadcast reception mode, wireless communication unit 110 is received or in memory 160
The audio data transducing audio signal of middle storage and to export be sound.Moreover, audio output module 152 can provide and movement
The relevant audio output of specific function (for example, call signal receives sound, message sink sound etc.) that terminal 100 executes.
Audio output module 152 may include loudspeaker, buzzer etc..
Alarm unit 153 can provide output notifying event to mobile terminal 100.Typical event can be with
Including calling reception, message sink, key signals input, touch input etc..Other than audio or video output, alarm unit
153 can provide output in different ways with the generation of notification event.For example, alarm unit 153 can be in the form of vibration
Output is provided, when receiving calling, message or some other entrance communications (incomingcommunication), alarm list
Member 153 can provide tactile output (that is, vibration) to notify to user.By providing such tactile output, even if
When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm unit 153
The output of the generation of notification event can be provided via display unit 151 or audio output module 152.
Memory 160 can store the software program etc. of the processing and control operation that are executed by controller 180, Huo Zheke
Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And
And memory 160 can store about the vibrations of various modes and audio signal exported when touching and being applied to touch screen
Data.
Memory 160 may include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, more
Media card, card-type memory (for example, SD or DX memory etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..Moreover, mobile terminal 100 can execute memory with by network connection
The network storage device of 160 store function cooperates.
The overall operation of the usually control mobile terminal of controller 180.For example, controller 180 executes and voice communication, data
Communication, video calling etc. relevant control and processing.In addition, controller 180 may include for reproducing (or playback) more matchmakers
The multi-media module 1810 of volume data, multi-media module 1810 can construct in controller 180, or can be structured as and control
Device 180 processed separates.Controller 180 can be with execution pattern identifying processing, by the handwriting input executed on the touchscreen or figure
Piece draws input and is identified as character or image.
Power supply unit 190 receives external power or internal power under the control of controller 180 and provides operation each member
Electric power appropriate needed for part and component.
Various embodiments described herein can be to use the calculating of such as computer software, hardware or any combination thereof
Machine readable medium is implemented.Hardware is implemented, embodiment described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), controller, microcontroller, microprocessor, is designed to execute function described herein processor
At least one of electronic unit is implemented, and in some cases, such embodiment can be implemented in controller 180.
For software implementation, the embodiment of such as process or function can with allow to execute the individual of at least one functions or operations
Software module is implemented.Software code can by the software application (or program) write with any programming language appropriate Lai
Implement, software code can store in memory 160 and be executed by controller 180.
So far, oneself is through describing mobile terminal according to its function.In the following, for the sake of brevity, will description such as folded form,
Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc., which is used as, to be shown
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.
Mobile terminal 100 as shown in Figure 1 may be constructed such that using via frame or grouping send data it is all if any
Line and wireless communication system and satellite-based communication system operate.
Referring now to Fig. 2 description communication system that wherein mobile terminal according to the present invention can operate.
Different air interface and/or physical layer can be used in such communication system.For example, used by communication system
Air interface includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and universal mobile communications system
System (UMTS) (particularly, long term evolution (LTE)), global system for mobile communications (GSM) etc..As non-limiting example, under
The description in face is related to cdma communication system, but such introduction is equally applicable to other types of system.
With reference to Fig. 2, cdma wireless communication system may include multiple mobile terminals 100, multiple base stations (BS) 270, base station
Controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to and Public Switched Telephony Network (PSTN)
290 form interface.MSC280 is also structured to form interface with the BSC275 that can be couple to base station 270 via back haul link.
Back haul link can be constructed according to any in several known interfaces, and the interface includes such as E1/T1, ATM, IP,
PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system may include multiple BSC2750 as shown in Figure 2.
Each BS270 can service one or more subregions (or region), by multidirectional antenna or the day of direction specific direction
Each subregion of line covering is radially far from BS270.Alternatively, each subregion can be by two or more for diversity reception
Antenna covering.Each BS270, which may be constructed such that, supports multiple frequency distribution, and the distribution of each frequency has specific frequency spectrum
(for example, 1.25MHz, 5MHz etc.).
What subregion and frequency were distributed, which intersects, can be referred to as CDMA Channel.BS270 can also be referred to as base station transceiver
System (BTS) or other equivalent terms.In this case, term " base station " can be used for broadly indicating single
BSC275 and at least one BS270.Base station can also be referred to as " cellular station ".Alternatively, each subregion of specific BS270 can be claimed
For multiple cellular stations.
As shown in Figure 2, broadcast singal is sent to the mobile terminal operated in system by broadcsting transmitter (BT) 295
100.Broadcasting reception module 111 as shown in Figure 1 is arranged at mobile terminal 100 to receive the broadcast sent by BT295
Signal.In fig. 2 it is shown that several global positioning system (GPS) satellites 300.The help of satellite 300 positions multiple mobile terminals
At least one of 100.
In Fig. 2, multiple satellites 300 are depicted, it is understood that, it is useful to can use any number of satellite acquisition
Location information.GPS module 115 as shown in Figure 1 is generally configured to cooperate with satellite 300 to obtain desired positioning and believe
Breath.It substitutes GPS tracking technique or except GPS tracking technique, the other of the position that can track mobile terminal can be used
Technology.In addition, at least one 300 property of can choose of GPS satellite or extraly processing satellite dmb transmission.
As a typical operation of wireless communication system, BS270 receives the reverse link from various mobile terminals 100
Signal.Mobile terminal 100 usually participates in call, information receiving and transmitting and other types of communication.Certain base station 270 is received each anti-
It is handled in specific BS270 to link signal.The data of acquisition are forwarded to relevant BSC275.BSC provides call
The mobile management function of resource allocation and the coordination including the soft switching process between BS270.The number that BSC275 will also be received
According to MSC280 is routed to, the additional route service for forming interface with PSTN290 is provided.Similarly, PSTN290 with
MSC280 forms interface, and MSC and BSC275 form interface, and BSC275 controls BS270 correspondingly with by forward link signals
It is sent to mobile terminal 100.
Based on above-mentioned optional mobile terminal hardware configuration and communication system, each embodiment of the method for the present invention is proposed.
As shown in figure 3, first embodiment of the invention provides a kind of device 1 for detecting terminal at a distance from shelter, it should
Device includes: judgment module 11, determining module 12 and update module 13.
Judgment module 11 judges for the intensity to the infrared signal reflected through shelter.
Determining module 12, for when the intensity for determining infrared signal is greater than preset first intensity threshold, determination to be blocked
Object is less than or equal to preset first distance threshold value at a distance from terminal.
Determining module 12 is also used to determine and hide when the intensity for determining infrared signal is less than preset second intensity threshold
Block material is greater than or equal to preset second distance threshold value at a distance from terminal；Wherein, the second intensity threshold is less than the first intensity threshold
Value, first distance threshold value are less than second distance threshold value.
Update module 13, for determining terminal when the intensity for determining infrared signal is greater than preset third intensity threshold
There are greasy dirt on screen, the first intensity threshold is updated to infrared signal full scale and is most worth, and gradually updates the second intensity threshold；
Wherein, third intensity threshold is greater than the first intensity threshold.
Optionally, update module 13 is also used to:
There are after greasy dirt on determining terminal screen, before gradually updating the second intensity threshold, by the second intensity threshold
Value is added with preset first greasy dirt offset, using obtained result as updated second intensity threshold.
Optionally, update module 13 gradually updates second intensity threshold and includes:
When the intensity for detecting infrared signal is reduced to updated second intensity threshold, by updated second intensity
Threshold value is updated to the 4th intensity threshold；Wherein the 4th intensity threshold is less than updated second intensity threshold；
When the intensity of infrared signal no longer reduces and after the intensity stabilization of infrared signal, if current infrared signal
Intensity is greater than the 4th intensity threshold, then keeps the 4th intensity threshold constant；
When the intensity of infrared signal no longer reduces and after the intensity stabilization of infrared signal, if current infrared signal
Intensity is less than or equal to the 4th intensity threshold, then the 4th intensity threshold is updated to the 5th intensity threshold；Wherein the 5th intensity threshold
Value is less than the intensity of current infrared signal.
Optionally, update module 13 is also used to:
The intensity of current infrared signal after stabilization is subtracted into the dry value in preset bottom, obtains the second greasy dirt offset, and will
First greasy dirt offset is updated to the second greasy dirt offset.
Optionally, update module 13 is also used to:
After the first greasy dirt offset is updated to the second greasy dirt offset, the first intensity threshold is completely measured by infrared signal
Journey most value is updated to the first initial intensity threshold plus the second greasy dirt offset；
Wherein the first initial intensity threshold refers to the first intensity threshold before being updated to infrared signal full scale most value.
In addition, in order to reach the object of the invention, second embodiment of the invention additionally provides a kind of detection terminal and shelter
Distance method, as shown in figure 4, this method includes S101-S103:
S101, the intensity of the infrared signal reflected through shelter is judged.
In embodiments of the present invention, the basic functional principle of infrared proximity transducer work is as follows: infrared proximity transducer
Include transmitting terminal and receiving end.Transmitting terminal emits infrared signal, and receiving end receives infrared signal through reflection.Receiving end receives
Signal magnitude and top whether there is shelter to have much relations, when unobstructed object, infrared signal is internal anti-except a part
Outside penetrating, most of aperture through top is launched；When there is shelter, the infrared signal major part quilt launched through aperture
It is reflected into receiver hole, as shown in Figure 5.
Therefore, by judge the size of the different infrared signal intensity of receiving end reflection may determine that before terminal whether
There is shelter, in embodiments of the present invention, needs first to judge the intensity of the infrared signal reflected through shelter.
S102, when the intensity for determining infrared signal is greater than preset first intensity threshold, determine shelter and terminal
Distance is less than or equal to preset first distance threshold value.
When the intensity for determining infrared signal is less than preset second intensity threshold, determine that shelter is big at a distance from terminal
In or equal to preset second distance threshold value；Wherein, the second intensity threshold is less than less than the first intensity threshold, first distance threshold value
Second distance threshold value.
In embodiments of the present invention, according to the working principle of infrared proximity transducer above-mentioned it is found that infrared signal it is strong
Whether degree can be with having shelter and the distance of range shelter object to change, and the change curve of data is with reference to shown in Fig. 6.
In Fig. 6, optionally, first distance threshold value is 3cm；Second distance threshold value is 5cm.In this embodiment, when we require to hide
Block material goes out from receiving end screen surfaces distance 3cm when shielding, and infrared signal corresponds to Hi thresholding (i.e. in the embodiment of the present invention at this time
Second intensity threshold), when requiring shelter far from screen bright to 5cm, infrared signal corresponds to (the i.e. present invention implementation of Lo thresholding at this time
The first intensity threshold in example scheme).It is red inside terminal structure in minimum signal value when shelter infinity
Signal value caused by external signal diffraction, referred to as bottom are made an uproar value.
In embodiments of the present invention, the close separate decision logic of terminal and shelter is as described below: (arranging value is
Infrared signal intensity value, status indicate the distance state of terminal and shelter):
Status=reports proximity state far from state, if value > Hi；
Status=proximity state, if value < Lo are reported far from state.
Threshold data dimension is handled, as shown in fig. 7, gray area indicates that state changes, white area is indicated
Continue to keep Last status.
According to Fig.7, when infrared proximity transducer works, two thresholdings (Lo, Hi) is relied primarily on and carry out state judgement,
The two threshold values can be write register and corresponding chip IC is written, and corresponding device can work in poll pattern or interruption
Mode.
Assuming that work is in interrupt mode, under normal circumstances, when no greasy dirt, when meeting thresholding decision logic and being, device
Part triggering is interrupted, system detection to the current state for interrupting, and obtaining and units test being reported to arrive.When making a phone call, mobile phone is leaned on
Nearly cheek part, screen normally go out screen, block infrared sensor aperture to the greasy dirt possibility of cheek at this time, greasy dirt will cause just
The part infrared signal often launched reflects, and causes signal value bigger than normal, and when far from infinity, infrared signal intensity is still
Higher than Lo.Will result in infrared sensor at this time can not report far from event, and system is caused not work screen.In response to this, may be used
To be adjusted in real time by following steps to two above-mentioned threshold values (Lo, Hi), to have in infrared sensor aperture
Greasy dirt still can smoothly execute go out screen and the operation of bright screen in the case where blocking.
S103, when determine infrared signal intensity be greater than preset third intensity threshold when, determine on terminal screen and exist
First intensity threshold is updated to infrared signal full scale and is most worth, and gradually updates the second intensity threshold by greasy dirt；Wherein, third
Intensity threshold is greater than the first intensity threshold.
In embodiments of the present invention, when terminal is close at a distance from shelter, it is, for example, less than 1cm or is directly connect with terminal
When touching, the intensity of the infrared signal of return can be very big.According to this principle, a threshold value can be set herein, as escribed above
Three intensity thresholds, when the intensity for detecting infrared signal is greater than the third intensity threshold, (the third intensity threshold is greater than first
Intensity threshold), then can be determined that terminal is close at a distance from shelter, in addition, due to when terminal and shelter away from
From close enough, or when directly contacting with shelter, for example, mobile phone screen is contacted with face, it will be very likely infected with greasy dirt,
And due to people can be always maintained under few cases when making a phone call mobile phone is placed directly against it is special on the face or apart from face
Closely.Therefore, when the intensity of the infrared signal detected is only that instantaneous value reaches third intensity threshold, then it can ignore the number
Value, but if the intensity continuous of the infrared signal detected longer time, for example, be greater than or equal to 10 seconds or 20 seconds,
It then can be determined that the tapping of infrared sensor has been infected with greasy dirt.Therefore, when the intensity of judgement infrared signal is greater than preset
Third intensity threshold, and after maintaining preset time span, then it can determine that the tapping of infrared sensor has oil
It is dirty.At this point, i.e. the first intensity threshold can continue to play the role of thresholding in order to guarantee above-mentioned Hi threshold value, it can be by first
Intensity threshold is updated to infrared signal full scale and is most worth.Similarly, for above-mentioned Lo threshold value, i.e., the second above-mentioned intensity threshold
Value also needs to adjust its numerical value to guarantee that its Lower Threshold acts on, but due to not knowing infrared sensor under present case
Aperture on specific greasy dirt amount, be unable to estimate the specific value of the intensity for the infrared signal that the greasy dirt amount can influence, i.e., under
The greasy dirt offset stated therefore can be during terminal be far from face, gradually according to the intensity of the infrared signal detected
Adjust the second intensity threshold.
Optionally, this method further include:
There are after greasy dirt on determining terminal screen, before gradually updating the second intensity threshold, by the second intensity threshold
Value is added with preset first greasy dirt offset, using obtained result as updated second intensity threshold.
In embodiments of the present invention, it is originally determined go out infrared sensor tapping there are when greasy dirt, can be first preliminary
Estimate a numerical value, i.e., the first above-mentioned greasy dirt offset as greasy dirt amount to the influence value of the intensity of infrared signal, and will
Second intensity threshold is added with preset first greasy dirt offset, using obtained result as updated second intensity threshold.
Optionally, as shown in figure 8, gradually updating the second intensity threshold includes S201-S203:
S201, when the intensity for detecting infrared signal is reduced to updated second intensity threshold, by updated
Two intensity thresholds are updated to the 4th intensity threshold；Wherein the 4th intensity threshold is less than updated second intensity threshold.
In embodiments of the present invention, during terminal is far from shelter, for example, after user makes a phone call, by hand
During machine removes face, the infrared signal detected can be gradually reduced, due to the aperture of the infrared sensor of terminal at this time
Greasy dirt has been infected at place, and therefore, when terminal has moved away from shelter certain distance, the intensity of the infrared signal detected may
Or it is bigger.If detecting that the intensity of infrared signal has been decreased to updated Lo value above-mentioned, that is, after updating
The second intensity threshold, but the intensity of infrared signal is not still stablized at this time, is constantly in during reduction, then can determine
The first greasy dirt offset being tentatively arranged in the above scheme is arranged larger, needs further to adjust the second intensity threshold
It is whole, since second intensity threshold is the lower threshold of infrared signal intensity, the second intensity threshold can be adjusted to small
In the 4th intensity threshold of current value.
S202, no longer reduce and after the intensity stabilization of infrared signal when the intensity of infrared signal, if current infrared
The intensity of signal is greater than the 4th intensity threshold, then keeps the 4th intensity threshold constant.
In embodiments of the present invention, after updated second intensity threshold being updated to the 4th intensity threshold again, such as
The current infrared signal intensity that fruit detects is stable, and the intensity of the infrared signal after stablizing is greater than the 4th intensity threshold
Value can then keep the Lo value that the 4th intensity threshold is infrared signal constant.
S203, no longer reduce and after the intensity stabilization of infrared signal when the intensity of infrared signal, if current infrared
The intensity of signal is less than or equal to the 4th intensity threshold, then the 4th intensity threshold is updated to the 5th intensity threshold；Wherein the 5th
Intensity threshold is less than the intensity of current infrared signal.
In embodiments of the present invention, after updated second intensity threshold being updated to the 4th intensity threshold again, such as
The current infrared signal intensity that fruit detects is stable, and the intensity of the infrared signal after stablizing is less than the 4th intensity threshold
Value, then illustrate that the 4th above-mentioned intensity threshold is still improper as lower threshold, then can continue the 4th intensity adjusting thresholds
For the 5th intensity threshold, the 5th intensity threshold is less than the 4th intensity threshold, and the 5th intensity threshold is less than current detection
The intensity of infrared signal out.
It should be noted that if the intensity of the current infrared signal detected continues to reduce, and it is reduced to the last five
Degree threshold value or the 5th intensity threshold are hereinafter, then further can be adjusted to the 6th intensity threshold for the 5th intensity threshold, and the 6th
Intensity of the intensity threshold still less than the infrared signal that current detection goes out.And so on, with the intensity of the infrared signal detected
It is gradually reduced, can continue the 6th current intensity threshold being adjusted to the 7th intensity threshold, the 8th intensity threshold ... etc.,
And intensity threshold adjusted requires to meet the intensity for being less than the infrared signal that current detection goes out.
Infrared letter it is further to note that if detect that current infrared signal is stable, and after stablizing
Number intensity be greater than the intensity threshold of current setting, then current intensity threshold can be kept constant.
In the above-described embodiments, step S202 and step S203 is the Different treatments under different situations, therefore step
S202 and step S203 does not have point of sequencing.
Optionally, this method further include:
The intensity of current infrared signal after stabilization is subtracted into the dry value in preset bottom, obtains the second greasy dirt offset, and will
First greasy dirt offset is updated to the second greasy dirt offset.
In embodiments of the present invention, when the intensity of infrared signal that current detection goes out no longer reduces, reach stable state with
Afterwards, it is possible to determine that present terminal has been in the place of range shelter object infinity, then the infrared signal of current detection out is strong
Degree must be that greasy dirt can incite somebody to action the reflected value of infrared signal intensity in the case that the dry value in bottom of infrared signal is added there are greasy dirt
The greasy dirt is defined as the second greasy dirt offset to the reflected value of infrared signal intensity.The bottom of the infrared sensor of terminal it is dry value
In the case where knowing, the intensity of the current infrared signal after stabilization is subtracted into the dry value in preset bottom, the second greasy dirt benefit can be obtained
Repay value.So far can determine the accurate greasy dirt offset when infrared sensor tapping contamination greasy dirt of terminal, i.e., this
Two greasy dirt offsets are mended it is therefore possible to use the second greasy dirt offset updates the first greasy dirt pre-estimated in aforementioned schemes
Repay value.
Optionally, this method further include:
After the first greasy dirt offset is updated to the second greasy dirt offset, the first intensity threshold is completely measured by infrared signal
Journey most value is updated to the first initial intensity threshold plus the second greasy dirt offset；
Wherein the first initial intensity threshold refers to the first intensity threshold before being updated to infrared signal full scale most value.
In embodiments of the present invention, the accurate greasy dirt compensation when determining that infrared sensor tapping is infected with greasy dirt
Value that is, after the second greasy dirt offset, can choose and be updated to the first intensity threshold just by infrared signal full scale most value
Begin the first intensity threshold add the second greasy dirt offset, can continue to keep Upper threshold Hi value be infrared signal full scale most
Value, is not particularly limited herein.
It should be noted that above-mentioned any intensity threshold and distance threshold can be according to different application scenarios voluntarily
Definition, with no restrictions for specific value.
So far, by the agency of is over whole essential characteristics of the embodiment of the present invention, it should be noted that above content is all only
It is the specific embodiment of the embodiment of the present invention, it in other embodiments, can also be using other embodiments, any and sheet
Any combination of the essential characteristic of the same or similar embodiment of inventive embodiments and the embodiment of the present invention, in this hair
Within the protection scope of bright embodiment.
Compared with prior art, the embodiment of the present invention is by greasy dirt offset to for judging shelter at a distance from terminal
The intensity threshold of infrared signal be updated, there are in the case where greasy dirt for the tapping for the infrared sensor being arranged at the terminal
Terminal is accurately judged at a distance from shelter, smoothly performs go out screen and the operation of bright screen.
Although disclosed herein embodiment it is as above, the content only for ease of understanding the present invention and use
Embodiment is not intended to limit the invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
Under the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (6)
1. a kind of device of detection terminal at a distance from shelter, which is characterized in that described device includes: judgment module, determination
Module and update module；
The judgment module judges for the intensity to the infrared signal reflected through shelter；
The determining module, for determining shelter when the intensity for determining infrared signal is greater than preset first intensity threshold
With at a distance from terminal be less than or equal to preset first distance threshold value；
The determining module is also used to when the intensity for determining infrared signal is less than preset second intensity threshold, and determination is blocked
Object is greater than or equal to preset second distance threshold value at a distance from terminal；Wherein, second intensity threshold is less than described first
Intensity threshold, the first distance threshold value are less than the second distance threshold value；
The update module, for determining the end when the intensity for determining infrared signal is greater than preset third intensity threshold
It holds on screen that there are greasy dirts, first intensity threshold is updated to infrared signal full scale and is most worth, and gradually updates described the
Two intensity thresholds；Wherein, third intensity threshold is greater than the first intensity threshold；
The update module is also used to:
There are after greasy dirt on determining the terminal screen, before gradually updating second intensity threshold, by described
Two intensity thresholds are added with preset first greasy dirt offset, using obtained result as updated second intensity threshold；
The update module gradually updates second intensity threshold
When the intensity for detecting the infrared signal is reduced to updated second intensity threshold, by updated second intensity
Threshold value is updated to the 4th intensity threshold；Wherein the 4th intensity threshold is less than updated second intensity threshold；
When the intensity of the infrared signal no longer reduces and after the intensity stabilization of the infrared signal, if current infrared letter
Number intensity be greater than the 4th intensity threshold, then keep the 4th intensity threshold constant；
When the intensity of the infrared signal no longer reduces and after the intensity stabilization of the infrared signal, if current infrared letter
Number intensity be less than or equal to the 4th intensity threshold, then the 4th intensity threshold is updated to the 5th intensity threshold；Its
Described in the 5th intensity threshold be less than the current infrared signal intensity.
2. device of the detection terminal according to claim 1 at a distance from shelter, which is characterized in that the update module
It is also used to:
The intensity of the current infrared signal after stabilization is subtracted into the dry value in preset bottom, obtains the second greasy dirt offset, and will
The first greasy dirt offset is updated to the second greasy dirt offset.
3. device of the detection terminal according to claim 2 at a distance from shelter, which is characterized in that the update module
It is also used to:
After the first greasy dirt offset is updated to the second greasy dirt offset, by first intensity threshold by described
Infrared signal full scale most value is updated to the first initial intensity threshold plus the second greasy dirt offset；
Wherein the first initial intensity threshold refers to the first intensity before being updated to the infrared signal full scale most value
Threshold value.
4. a kind of method of detection terminal at a distance from shelter, which is characterized in that the described method includes:
The intensity of the infrared signal reflected through shelter is judged；
When determine infrared signal intensity be greater than preset first intensity threshold when, determine shelter be less than at a distance from terminal or
Equal to preset first distance threshold value；
When determine infrared signal intensity be less than preset second intensity threshold when, determine shelter be greater than at a distance from terminal or
Equal to preset second distance threshold value；Wherein, second intensity threshold is less than first intensity threshold, the first distance
Threshold value is less than the second distance threshold value；
When the intensity for determining infrared signal is greater than preset third intensity threshold, determine on the terminal screen there are greasy dirt,
First intensity threshold is updated to infrared signal full scale to be most worth, and gradually updates second intensity threshold；Wherein,
Three intensity thresholds are greater than the first intensity threshold；
The method also includes:
There are after greasy dirt on determining the terminal screen, before gradually updating second intensity threshold, by described
Two intensity thresholds are added with preset first greasy dirt offset, using obtained result as updated second intensity threshold；
It is described gradually to update second intensity threshold and include:
When the intensity for detecting the infrared signal is reduced to updated second intensity threshold, by updated second intensity
Threshold value is updated to the 4th intensity threshold；Wherein the 4th intensity threshold is less than updated second intensity threshold；
When the intensity of the infrared signal no longer reduces and after the intensity stabilization of the infrared signal, if current infrared letter
Number intensity be greater than the 4th intensity threshold, then keep the 4th intensity threshold constant；
When the intensity of the infrared signal no longer reduces and after the intensity stabilization of the infrared signal, if current infrared letter
Number intensity be less than or equal to the 4th intensity threshold, then the 4th intensity threshold is updated to the 5th intensity threshold；Its
Described in the 5th intensity threshold be less than the current infrared signal intensity.
5. method of the detection terminal according to claim 4 at a distance from shelter, which is characterized in that the method is also wrapped
It includes:
The intensity of the current infrared signal after stabilization is subtracted into the dry value in preset bottom, obtains the second greasy dirt offset, and will
The first greasy dirt offset is updated to the second greasy dirt offset.
6. method of the detection terminal according to claim 5 at a distance from shelter, which is characterized in that the method is also wrapped
It includes:
After the first greasy dirt offset is updated to the second greasy dirt offset, by first intensity threshold by described
Infrared signal full scale most value is updated to the first initial intensity threshold plus the second greasy dirt offset；
Wherein the first initial intensity threshold refers to the first intensity before being updated to the infrared signal full scale most value
Threshold value.
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| CN107765232B (en) * | 2017-09-27 | 2023-10-24 | 歌尔科技有限公司 | Calibration method and device of proximity sensor |
| CN107704182B (en) * | 2017-09-29 | 2020-03-31 | 维沃移动通信有限公司 | Code scanning method and mobile terminal |
| CN109862169B (en) * | 2017-11-30 | 2022-03-01 | 北京小米移动软件有限公司 | Electronic equipment control method, device and storage medium |
| CN108200493B (en) * | 2017-12-29 | 2020-09-29 | 广州酷狗计算机科技有限公司 | Earphone assembly, and function control method and device of earphone |
| TWI699991B (en) | 2019-02-26 | 2020-07-21 | 華碩電腦股份有限公司 | Electronic device and controlling method thereof |
| CN110381200B (en) * | 2019-07-08 | 2022-03-08 | 维沃移动通信有限公司 | Screen-off control method and mobile terminal |
| CN112698420B (en) * | 2019-10-23 | 2023-11-03 | 广州奕至家居科技有限公司 | Object proximity sensing method and device |
| CN111524342A (en) * | 2020-05-06 | 2020-08-11 | 上海创功通讯技术有限公司 | Infrared remote control equipment testing device and method |
| CN112101340B (en) * | 2020-11-16 | 2021-02-05 | 展讯通信（上海）有限公司 | Screen stain recognition method and device |
| CN112687214B (en) * | 2020-12-28 | 2023-12-19 | 维沃移动通信有限公司 | Screen control circuit and electronic equipment |
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| CN103197357A (en) * | 2013-02-26 | 2013-07-10 | 深圳市中兴移动通信有限公司 | Infrared proximity detector self-calibration method and device |
| US9689810B2 (en) * | 2013-10-08 | 2017-06-27 | Htc Corporation | Electronic apparatus with proximity sensor and automatic calibration method thereof |
| CN103941310B (en) * | 2014-04-09 | 2017-02-15 | 苏州佳世达电通有限公司 | Correcting method and system of proximity sensor |
| CN105025159B (en) * | 2015-06-05 | 2018-04-17 | 广东欧珀移动通信有限公司 | proximity sensor adjusting method and device |
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