CN103491230A - Mobile terminal capable of automatically adjusting volume and fonts and automatic adjusting method thereof - Google Patents
Mobile terminal capable of automatically adjusting volume and fonts and automatic adjusting method thereof Download PDFInfo
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- CN103491230A CN103491230A CN201310397909.0A CN201310397909A CN103491230A CN 103491230 A CN103491230 A CN 103491230A CN 201310397909 A CN201310397909 A CN 201310397909A CN 103491230 A CN103491230 A CN 103491230A
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Abstract
The invention provides a mobile terminal capable of automatically adjusting volume and fonts and an automatic adjusting method thereof. The mobile terminal is provided with at least two range sensor modules and one camera module. The automatic adjusting method includes the steps that the data of the distance between a human body and the mobile terminal, measured by the first range sensor module and the second range sensor module and the relative positions of human eyes or human ears in a screen of the mobile terminal, recognized by the camera module are obtained; the first range sensor module is placed nearby the position of a telephone receiver of the mobile terminal, the second range sensor module is placed on the bottom of the front face of the mobile terminal, and the camera module is placed nearby the position of the first range sensor module; the azimuth-range of a human face or the human ears relative to the telephone receiver of the mobile terminal is calculated; then, the volume and the sizes of the fonts of the mobile terminal are automatically adjusted according to a preset control rule. By the aid of the mobile terminal for automatically adjusting the volume and the fonts, the volume and the sizes of the fonts can be accurately adjusted.
Description
Technical field
The present invention relates to a kind of can automatic regulating volume and mobile terminal and the Automatic adjustment method thereof of font, relate in particular to a kind of can be by accurate location and mobile terminal and the Automatic adjustment method thereof of automatic regulating volume and font.
Background technology
Along with social progress, it is more and more universal that portable terminal has become, people use portable terminal to be conversed in daily life in a large number, carry out the word input or carry out Entertainment, watch video etc., but portable terminal only has fixing volume and word size usually, this is for the people of the custom with different use portable terminals, perhaps for example, in different places (, on bed, chair is first-class) use the people of portable terminal, perhaps for the people of different motion state (motion or static), can produce the size of volume and word and the unmatched situation of distance appearance that the user arrives portable terminal, for example, the phone of can not hear clearly, perhaps do not see e-book or note in Chu's portable terminal, perhaps font macrolesion user's eyesight too.This situation can cause great inconvenience to the user.
According to this needs, people have carried out a series of improvement to portable terminal.
For example, the volume adjusting method that a kind of mobile phone occurred, it can utilize an infrared ray sensor of the receiver part that is arranged on mobile phone to measure the distance with user's ear when voice call, and according to the distance adjustment the tinkle of bells of its mensuration and the volume of call connecting sound.It is comprised of following several stages: the stage of measuring user place distance with an infrared ray sensor, the stage of more described mensuration distance and the reference range set, if described mensuration distance is less than the reference range of having set, the volume rank of exporting by loud speaker is transformed to the volume rank that the user set and exports.
In addition, a kind of method of regulating the font size of mancarried device has also appearred, it utilizes near range cells receiver to measure the distance of portable video unit objects in front to portable video unit, match corresponding font size information from default distance with the font size relation information according to the distance recorded, thereby regulate the font size of the Word message of wish demonstration.
But the present inventor, through scrutinizing, finds that there is following problem in the equipment of prior art:
Only the object that utilizes range sensor to measure and the distance value between mobile terminal are as the foundation of regulating volume and font, but people's head has and faces mobile terminal, inclined plane to mobile terminal or head with askew attitude the multiple situation facing to mobile terminal, and the common measurement of range sensor is all to arrive the nearest point of range sensor and the distance between range sensor in the angular range of the measurable space at range sensor in the head part, so real distance between measured distance value inhuman ear or human eye and mobile terminal, and the volume that the people can hear and people's ear but not other positions of head are to the distance dependent of mobile terminal, the size of the font that the people can see clearly and eye but not other positions of head are to the distance dependent of mobile terminal, therefore volume and being adjusted in different situations of font there will be larger error.
And the inadequate hommization of the adjusting of said apparatus, meaningless mistake adjusting easily appears.
In addition, there will be misoperation while other objects occurring in the measuring range of range sensor, such as, when the user uses the portable terminal browsing page or sees e-book, during video clip, finger whips in the range cells front sometimes, perhaps sometimes around the head part, have other foreign material (such as the lamp holder of desk lamp), now range cells can be by finger, lamp holders etc. are mistakened as the head of doing the user, thereby portable terminal can judge the user from terminal very close to, thereby adjust very littlely by display font (may also have volume), cause the user not see shown content (or not hearing play content).In addition, when the people watches mobile terminal with the orientation tilted very much, also likely occur that near range sensor receiver is measured the situation less than people's head.
Summary of the invention
In order to improve prior art, only utilize near the range sensor be arranged on receiver to measure the problem that the distance signal between user and mobile terminal exists as regulating font and volume, the present invention proposes a kind of utilization and be arranged on a plurality of range sensors of different key positions and the automatic adjusting that the azimuth-range signal between camera acquisition human eye or people's ear and mobile terminal screen is realized volume and the font of mobile terminal, experience to improve the user.
To achieve these goals, the method that the present invention proposes is applied to have the mobile terminal of at least two range sensor modules and a camera module, the method comprises: obtain from first, human eye or the relative position of people's ear in mobile terminal screen of the human body that the second distance sensor assembly is measured and the range data between mobile terminal and camera module identification, described the first range sensor module is positioned near mobile terminal receiver position, the second distance sensor assembly is positioned at bottom, mobile terminal front, camera module is positioned near the first range sensor module position, calculate the relatively move distance and bearing of terminal receiver of people's face or people's ear, automatically regulate again volume and the font size of mobile terminal according to predefined control law.
According to an aspect of the present invention, provide a kind of portable terminal, comprising: the first range sensor, for measuring the first range data between user and mobile phone; The second distance transducer, for measuring the second distance data between user and mobile phone; Camera, there is face identification functions, camera is measured the bearing data of people's face in screen, processor, by judging whether the first range data and second distance data exceed the measuring range of setting and judge by the facial contour of identifying in the image of catching whether the image of catching is normal facial contour, determines that whether the first range data and second distance data are effective; Wherein, processor, according to being judged as effective the first range data and/or being judged as effective second distance data and described bearing data obtains people's eyes and/or ear to the final distance of loud speaker or receiver, then obtains with this finally apart from corresponding volume and/or displaying ratio.
Described portable terminal also comprises memory, the corresponding relation of the corresponding relation of memory stores volume and described final distance and/or displaying ratio and described final distance.
Processor obtains corresponding volume and/or displaying ratio to the final distance of loud speaker or receiver from memory according to people's eyes and/or ear.
Described portable terminal also comprises judge module, the volume that the judge module receiving processor obtains and/or displaying ratio, whether the volume that the volume that decision processor is obtained and/or displaying ratio are current with portable terminal and/or displaying ratio be identical, if different, trigger volume and change event and/or displaying ratio change event, with volume and/or the displaying ratio of automatically regulating portable terminal.
Whether the volume that processor judgement is obtained and/or displaying ratio volume and/or the displaying ratio current with portable terminal be identical, if different, automatically regulates volume and/or the displaying ratio of portable terminal.
The first range sensor and camera be positioned at the receiver of portable terminal or loud speaker around, the second distance transducer be positioned at the below of display screen or portable terminal the bottom button around.
Except the first range sensor and second distance transducer, portable terminal also comprises the range sensor that is positioned at other positions, and the valid data in the range data that portable terminal records according to all range sensors are regulated volume and/or the displaying ratio of portable terminal automatically.
Described portable terminal also comprises the camera that is positioned at other positions, and the bearing data that portable terminal records according to all cameras is regulated volume and/or the displaying ratio of portable terminal automatically.
According to a further aspect in the invention, provide a kind of volume of automatic adjusting portable terminal and/or the method for displaying ratio, comprising: the first range sensor is measured the first range data between user and mobile phone; Second distance data between second distance sensor measurement user and mobile phone; Camera is measured the bearing data of people's face in screen, and whether the image of catching by the facial contour judgement in the identification image of catching is normal facial contour and by judging whether the first range data and second distance data exceed the measuring range of setting, determines that whether the first range data and second distance data are effective; Portable terminal is according to being judged as effective the first range data and/or being judged as effective second distance data and described bearing data obtains people's eyes and/or the ear final distance to loud speaker or receiver, then obtain volume and/or the displaying ratio corresponding with this final distance, and the volume of portable terminal and/or displaying ratio are adjusted to described corresponding volume and/or displaying ratio.
According to a further aspect in the invention, provide a kind of volume of automatic adjusting portable terminal and/or the method for displaying ratio, comprising: the first range sensor is set and enters mode of operation, gather the first range data D1, camera is set and enters mode of operation, the image in seizure portable terminal screen the place ahead during gathering D1 or in the contiguous time, whether the integrity degree of the facial contour in the image that judgement is caught is lower than predetermined ratio, when lower than predetermined ratio, judge that the first range data D1 is invalid, finish the automatic adjusting of volume and/or displaying ratio, when being more than or equal to predetermined ratio, whether there is the shape outside facial contour in the presumptive area of the image that judgement is caught, if there is the shape outside facial contour, judge that the first range data D1 is invalid, enter step S206, if do not there is the shape outside facial contour, judge whether the first range data D1 exceeds the measuring range of setting, when exceeding the measuring range of setting, enter step S206, when not exceeding the measuring range of setting, judge that the first range data D1 is effective, enter step S209, step S206: the second distance transducer is set and enters mode of operation, gather second distance data D2, whether there is the shape outside facial contour in the presumptive area of the image that judgement is caught, if there is the shape outside facial contour, judge that second distance data D2 is invalid, finish the automatic adjusting of volume and/or displaying ratio, if do not there is the shape outside facial contour, judge whether second distance data D2 exceeds the measuring range of setting, when exceeding the measuring range of setting, finish the automatic adjusting of this volume and/or displaying ratio, when not exceeding the measuring range of setting, judge that second distance data D2 is effective, enter step S209, step S209: by face identification functions identification people's ear or the orientation C of human eye in mobile terminal screen of camera, determine people's ear or the eyes final distance B 3 to loud speaker or receiver according to the valid data in D1 and D2 and orientation C, and then obtain level of sound volume R and/or displaying ratio P correspondingly, the level of sound volume of portable terminal is adjusted to obtained level of sound volume R and/or the displaying ratio of the pattern in portable terminal or word is adjusted to obtained displaying ratio P.
The first range sensor be positioned at portable terminal receiver around.
According to a further aspect in the invention, provide a kind of volume of automatic adjusting portable terminal and/or the method for displaying ratio, comprising: the first range sensor is set and enters mode of operation, gather the first range data D1, camera is set and enters mode of operation, the image in seizure portable terminal screen the place ahead during gathering D1 or in the contiguous time, whether the integrity degree of the facial contour in the image that judgement is caught is lower than predetermined ratio, when lower than predetermined ratio, judge that the first range data D1 is invalid, when being more than or equal to predetermined ratio, whether there is the shape outside facial contour in the presumptive area of the image that judgement is caught, if there is the shape outside facial contour, judge that the first range data D1 is invalid, if do not there is the shape outside facial contour, judge whether the first range data D1 exceeds the measuring range of setting, when exceeding the measuring range of setting, judge that the first range data D1 is invalid, when not exceeding the measuring range of setting, judge that the first range data D1 is effective, the second distance transducer is set and enters mode of operation, gather second distance data D2, whether the integrity degree of the facial contour in the image that judgement is caught is lower than predetermined ratio, when lower than predetermined ratio, judge that second distance data D2 is invalid, when being more than or equal to predetermined ratio, whether there is the shape outside facial contour in the presumptive area of the image that judgement is caught, if there is the shape outside facial contour, judge that second distance data D2 is invalid, if do not there is the shape outside facial contour, judge whether second distance data D2 exceeds the measuring range of setting, when exceeding the measuring range of setting, judge that second distance data D2 is invalid, when not exceeding the measuring range of setting, judge that second distance data D2 is effective, if the first range data D1, second distance data D2 are all invalid, finish this adjusting work, face identification functions identification people's ear or the orientation C of human eye in mobile terminal screen by camera, the ear of determining the people according to the valid data in the first range data D1 and second distance data D2 and orientation C or eyes are to the final distance B 3 of loud speaker or receiver, and then obtain level of sound volume R and/or displaying ratio P correspondingly, the level of sound volume of portable terminal is adjusted to obtained level of sound volume R and/or the displaying ratio of the pattern in portable terminal or word is adjusted to obtained displaying ratio P.
The volume of described automatic adjusting portable terminal and/or the method for displaying ratio comprise: there is no trigger event or acquire range sensor and the data of camera after, range sensor and camera are made as to sleep pattern, to reduce power consumption.
The volume of described automatic adjusting portable terminal and/or the method for displaying ratio comprise: by camera, judge that people's face is in side face pattern or positive face pattern, if in side face pattern, measure and calculate the final distance of an ear to loud speaker or receiver, if in positive face pattern, measure and calculate the final distance of two ear line centers to loud speaker or receiver.
Judge the first range data D1 that the first range sensor gathers whether effectively presumptive area and the second distance data D2 judge the collection of second distance transducer of time institute's reference the presumptive area of effective time institute's reference is different.
Use, according to the mobile terminal of automatic regulating volume of the present invention and font, can be regulated volume and font size accurately, has reduced widely the frequency of misoperation.
The accompanying drawing explanation
The description of being undertaken by the accompanying drawing below in conjunction with an example exemplarily is shown, above and other purpose of the present invention and characteristics will become apparent, wherein:
Fig. 1 has schematically shown the structure of mobile terminal according to an embodiment of the invention.
Fig. 2 is the indicative flowchart of method of automatically regulating according to an embodiment of the invention the volume of mobile terminal.
Fig. 3 is the indicative flowchart of method of automatically regulating according to an embodiment of the invention the font size of mobile terminal.
Embodiment
Below, describe embodiments of the invention in detail with reference to accompanying drawing.
Fig. 1 has schematically shown the structure of mobile terminal 10 according to an embodiment of the invention.Certainly, the mobile terminal with communication function of only take here is example, can be also other mancarried devices that do not possess communication function, for example, and e-book, game machine etc.Mobile terminal 10 comprises at least two range sensors 102 and 104, and a camera 106.
Specifically, mobile terminal 10 comprises: the first range sensor 102, for measuring the first range data D1 between user and mobile phone; Second distance transducer 104, for measuring the second distance data D2 between user and mobile phone; Camera 106, there is face identification functions, camera (is for example measured the bearing data of people's face in screen, relative position and the angle of the facial contour of catching shown on screen in screen), and whether the image that identification is caught is normal facial contour, to judge the first range data and second distance data whether effectively (below will describe in detail); Wherein, mobile terminal 10, according to being judged as effective the first range data and/or being judged as effective second distance data and described bearing data obtains the position data of people's eyes and/or ear, then obtains the volume corresponding with this position data and/or displaying ratio.Described displaying ratio can be the displaying ratio (font size) of word, can be also the displaying ratio of pattern or icon etc.
Described range sensor adopts existing techniques in realizing, can be for ultrasonic distance transducer, infrared sensor etc., for measuring the range data between user and mobile phone.Described camera is front-facing camera, and it should have face identification functions, for identifying the relative position of people's face at screen, specifically, can be for the eyes of identifying the people and ear the orientation at screen.
Certainly, judge module can independently not exist yet, and it can be the part of CPU.
Preferably, described the first range sensor 102 and camera 106 can be positioned at receiver 101 around, described second distance transducer 104 can be positioned at the below of display screen 103 or button 105 around, further preferably, a plurality of range sensors can be set near receiver 101, or for example, near other positions of mobile terminal 10 (, the second distance transducer) a plurality of cameras are set, to improve the accuracy of measuring.
Fig. 2 is the indicative flowchart of method of automatically regulating according to an embodiment of the invention the volume of mobile terminal.
The method is applied to comprise the mobile terminal of at least two range sensors and a camera.In the present embodiment, comprise the first range sensor 102, second distance transducer 104 and camera 106 and in the situation that the user receives calls with loud speaker or receiver or use the mobile terminal automatic regulating volume of loud speaker (, loud speaker or receiver enable and under state that earphone is not enabled) watching video, browse network, while playing games etc. is that example illustrates with one.The method comprises the following steps:
S201, two range sensors are set and camera enters sleep pattern.This step is optional step, preferably adopts this step, and this is in order to save the power consumption of mobile terminal, the initial condition of two range sensors and camera can be made as to low power sleep mode.Certainly, also can not carry out this initial setting up.
S202, judged whether trigger event.Trigger event is mainly used in notifying mobile terminal to start automatic sound-volume adjusting function.Trigger event mainly can be for the user manually boots automatic sound-volume adjusting function, or the user starts phone functions, or the user starts to start loud speaker etc., but be not limited to these.When judgement does not have trigger event, can continue to get back to step S201; When trigger event is arranged, enter step S203.If the initial default state of two range sensors and camera is not low power sleep mode, that is, if there is no step S201, can save step S202.
S203, the first range sensor is set enters mode of operation, gather range data D1.That is, trigger the first range sensor and gather current distance signal.
S203b, camera is set enters mode of operation, during image data D1 or catch the image in mobile terminal the place ahead in the contiguous time.
S204, the first range sensor is set enters sleep pattern.This step is also optional, when needs are saved power consumption, the sleep pattern of transducer is set.
S205a-S205c, judge that whether data D1 is effective.This minute three levels, the image that the first two level is caught for determining step S203b be whether normal facial contour (, the first level " whether the departure degree that judges head part and mobile terminal exceeds predetermined value " and the second level " judge between the first range sensor and user's head and whether have other foreign matter "), the 3rd level is to judge whether the distance between mobile terminal and user exceeds the measuring range of setting.
In the determining step S205a of the first level, if the integrity degree of the facial contour of catching is lower than predetermined ratio, for example, only photographed 60% of facial contour, illustrate that head part and mobile terminal depart from (exceeding predetermined value) far away, the data that range sensor records are not probably the data that the reflection of people's face produces, and now directly judge that data are invalid, flow process can directly jump to " end ", finishes this automatic tuning work.Be more than or equal to predetermined ratio if determine the integrity degree of the facial contour of catching in step S205a, enter the judgement (step S205b) of the second level, (for example there is shape outside facial contour in the presumptive area of caught image, the shape of finger or the truncated conical shape of lamp holder) time, probably there is foreign matter, decision data D1 is invalid, when data D1 is invalid, enters step S206.The area of described presumptive area and position are rule of thumb, the screen size of mobile terminal, camera set in position and the coverage of mobile terminal.Have data D1 that shape outside facial contour judges that the first range sensor gathers whether effectively the time in the presumptive area according to image, described presumptive area is positioned at the middle and upper part of caught image; There is data D2 that shape outside facial contour judges that the second distance transducer gathers whether (step S206b below will discuss in detail) effectively the time in the presumptive area according to image, presumptive area now is positioned at the middle and lower part of caught image, and this is all that those skilled in the art can set.
If do not there is the shape outside facial contour in the presumptive area of the image of catching, enter into the judgement (step S205c) of the 3rd level, judge whether the distance between mobile terminal and user exceeds the measuring range of setting, when exceeding the measuring range of setting, the data-signal can determine sensor recorded is invalid, it records may be the signal of the object reflection such as metope, now enters step S206; When the distance recorded does not exceed the measuring range of setting, decision data D1 is effective, enters step S209.
It should be noted that, top step S203b preferably carries out between S203 and S205a.Certainly S203b also can carry out with S203 simultaneously (because captured image may be also will the second distance sensor measurement apart from the time use, it is not best therefore in the first range sensor image data, taking facial image) or carry out when execution step S205b or S205c.Step S203b can also carry out after S205c, but must assurance can not be later than the time of implementation of step S206.
S206, the second distance transducer is set enters mode of operation, gather range data D2.When the automatic sound-volume adjusting function of mobile terminal triggers, preferentially using the distance signal of the first range sensor as the basis for estimation of control law.In the embodiment shown in Fig. 2, only have when data D1 is invalid, just gather the range data of second distance transducer.In another embodiment, even data D1 is effective, also can gather range data D2, thereby determine the position of people's ear together with utilizing data D1 and data D2 coming.That is, even now be equivalent to the judged result of the S205c of Fig. 2, be "No", flow process also still forwards S206 to.
S207, the second distance transducer is set enters sleep pattern.This is optional, when needs are saved power consumption, the sleep pattern of transducer is set.
S208b-S208c, judge that whether data D2 is effective, it also carries out the judgement of two levels,, at first as described in step S205b, judge in step S208b in the presumptive area of caught image that the shape that whether has outside facial contour (for example, the shape of finger or the truncated conical shape of lamp holder), wherein, presumptive area is positioned at the middle and lower part (this is that those skilled in the art can set) of caught image.During shape outside having facial contour, data D2 is invalid, finishes this time to regulate volume work.When the shape that do not have outside facial contour, enter step S208c, judge whether the distance between mobile terminal and user exceeds the measuring range of setting, if exceed, judge that data D2 is invalid, finish this time to regulate volume work; If do not exceed, judge that data D2 is effective, enter step S209.In described another embodiment (not illustrating in Fig. 2), when data D2 is invalid and D1 when effective, still enter step S209, if D2 and D1 are all invalid, finish this time to regulate volume work.
S209, for caught image, identify by face identification functions the quantity that multi-group data is identified people's ear relative position and people's ear of photographing in mobile terminal screen, and then the relative position C of definite people's ear and the first range sensor and/or second distance transducer, and confirm when forefathers' face be in side face pattern or positive face pattern, for example in image, recognize while only thering is people's helix exterior feature and think in side face pattern, can recognize in image while thering is two people's ears, think in positive face pattern.When in side face pattern, determine the relative position of this people's ear and camera; When in positive face pattern, determine the position at two ear line centers and the relative position C of camera.Because the relative position of camera and range sensor is determined, so can finally obtain the relative position C of taken people's ear or two ear line centers and the first range sensor and/or second distance transducer.
S210, camera is set enters sleep pattern.This is also optional, when needs are saved power consumption, the sleep pattern of camera is set.
S211, according to the relative position C of data D1 and/or D2 and ear and camera, can determine people's ear or two the ear line centers 3 D stereo coordinate with respect to the first range sensor and/or second distance transducer, thereby finally calculate people's ear or two the ear line centers distance B 3 to loud speaker (or receiver), and then obtain level of sound volume R correspondingly.In order to realize the relative stability of volume output, volume output can be divided into to a plurality of grades in system, select different level of sound volume along with the variation of the distance between mobile terminal and user.
S212, judge whether the current level of sound volume r of mobile terminal equals level of sound volume R;
When both are identical, show that distance between mobile terminal and user does not change or change very not little, and then finishes this time to regulate volume work; When both are different, enter step S213.
S213, triggering volume change event.Now show that certain variation has occurred the distance between mobile terminal and user, needs to change the output size of volume.
In one embodiment, mobile terminal preferentially obtains the range data of the first range sensor and regulates volume, only have when the first sensor data invalid, just adopt the range data of second distance transducer; In another embodiment, the range data that mobile terminal considers two range sensors judges the position of last ear.Alternatively, in system, also can adopt the distance signal of more range sensors as basis for estimation, regulate more accurately volume.In this example, camera is mainly identified the relative position of people's ear, and avoids the various chaff interferences such as staff, desk lamp to cause range sensor to carry out misoperation, can regulate more accurately volume like this.
Figure 3 shows that embodiment of the present invention mobile terminal regulates a kind of schematic flow sheet of the method for display font automatically.The method is applied to comprise the mobile terminal of at least two range sensors and a camera.In the present embodiment, specifically with a mobile terminal that comprises the first range sensor 102, second distance transducer 104 and camera 106, automatically regulate font size explanation.The method comprises:
S301, two range sensors are set and camera enters sleep pattern.As previously mentioned, this is optional.
S302, judged whether trigger event.Trigger event is mainly used in notifying mobile terminal to start and automatically regulates the display font function.Trigger event mainly can be for the user manually boots automatic adjusting font functionalities, or user's opening document, or the user starts browsing page etc., but be not limited to these.When judgement does not have trigger event, can continue to get back to step S301; When trigger event is arranged, enter step S303.If the initial default state of two range sensors and camera is not low power sleep mode, that is, if there is no step S301, can save step S202.
S303, the first range sensor is set enters mode of operation, gather range data D1.That is, trigger the first range sensor and gather current distance signal.
S303b, camera is set enters mode of operation, catch the facial contour image.
S304, the first range sensor is set enters sleep pattern.This is optional.
S305a-S305c, judge that whether data D1 is effective.This minute three levels, the first two level be the image of catching in determining step S303b be whether normal facial contour (, the first level " whether the departure degree that judges head part and mobile terminal exceeds predetermined value " and the second level " judge between the first range sensor and user's head and whether have other foreign matter "), the 3rd level is to judge whether the distance between mobile terminal and user exceeds the measuring range of setting.
In the determining step S305a of the first level, if the integrity degree of the facial contour of catching is lower than predetermined ratio, for example, only photographed 60% of facial contour, illustrate that head part and mobile terminal depart from (exceeding predetermined value) far away, the data that range sensor records are not probably the data that the reflection of people's face produces, and now directly judge that data are invalid, flow process can directly jump to " end ", finishes this automatic tuning work.Be more than or equal to predetermined ratio if determine the integrity degree of the facial contour of catching in step S305a, enter the judgement (step S305b) of the second level, (for example there is shape outside facial contour in the presumptive area of caught image, the shape of finger or the truncated conical shape of lamp holder) time, probably there is foreign matter, decision data D1 is invalid, when data D1 is invalid, enters step S306.As mentioned above, judge data D1 that the first range sensor gathers whether effectively presumptive area and the data D2 judge the collection of second distance transducer of time institute's reference the presumptive area of effective time institute's reference is different.
If do not there is the shape outside facial contour in the presumptive area of the image of catching, enter into the judgement (step S305c) of the 3rd level, judge whether the distance between mobile terminal and user exceeds the measuring range of setting, when exceeding the measuring range of setting, the data-signal can determine sensor recorded is invalid, it records may be the signal of the object reflection such as metope, now enters step S306; When the distance recorded does not exceed the measuring range of setting, decision data D1 is effective, enters step S309.
It should be noted that, top step S303b preferably carries out between S303 and S305a.Certainly S303b also can carry out with S303 simultaneously (because captured image may be also will the second distance sensor measurement apart from the time use, it is not best therefore in the first range sensor image data, taking facial image) or carry out when execution step S305b or S305c.Step S303b can also carry out after S305c, but must assurance can not be later than the time of implementation of step S306.
S306, the second distance transducer is set enters mode of operation, gather range data D2.Trigger the second distance transducer and gather current distance signal.In an embodiment shown in Fig. 3, only have when data D1 is invalid, just gather the range data of second distance transducer.In another embodiment, even data D1 is effective, also can gather range data D2, thereby determine the position of eye together with utilizing data D1 and data D2 coming.That is, even now be equivalent to the judged result of the S305c of Fig. 3, be "No", flow process also still forwards S306 to.
S307, the second distance transducer is set enters sleep pattern; Optionally.
S308b-S308c, judge that whether data D2 is effective, it also carries out the judgement of two levels,, at first as described in step S305b, judge in step S308b in the presumptive area of caught image that the shape that whether has outside facial contour (for example, the shape of finger or the truncated conical shape of lamp holder), wherein, presumptive area is positioned at the middle and lower part (this is that those skilled in the art can set) of caught image.During shape outside having facial contour, data D2 is invalid, finishes this time to regulate volume work.When the shape that do not have outside facial contour, enter step S308c, judge whether the distance between mobile terminal and user exceeds the measuring range of setting, if exceed, judge that data D2 is invalid, finish this time to regulate volume work; If do not exceed, judge that data D2 is effective, enter step S309.In described another embodiment (not illustrating in Fig. 3), when data D2 is invalid and D1 when effective, still enter step S309, if D2 and D1 are all invalid, finish this time to regulate volume work.
S309, by face identification functions, identify human eye relative position in mobile terminal screen, and then determine the position at two eyes line centers and the relative position C of the first range sensor and/or second distance transducer.Wherein, camera is determined the relative position of two eyes line centers and camera by the identification multi-group data based on face recognition technology, because the relative position of camera and range sensor is determined, so can finally obtain the relative position C of two eyes line centers and the first range sensor and/or second distance transducer.
S310, camera is set enters sleep pattern.This is optional.
S311, according to the relative position C of data D1 and/or D2 and ear and camera, can determine the 3 D stereo coordinate of two eyes line centers with respect to the first range sensor and/or second distance transducer, thereby finally calculate the distance B 3 of two eyes line centers to loud speaker (or receiver), and then obtain level of sound volume R correspondingly.In the above in described another embodiment, in order to judge more accurately the distance between user and screen, the mean value that gathers range data D1 and the D2 of the first and second range sensors and calculate both is as the current distance between user and mobile terminal, again it is revised, and then determined positional distance D3 according to relative position C.
S312, according to D3, obtain corresponding displaying ratio P.Can preset the displaying ratio scope in system, as reduce in scale has 10%～90%, magnification ratio is by 110%～200% etc.Determine the displaying ratio P of current the best according to range data D3.
S313, judge whether displaying ratio P equals the current font displaying ratio p1 of mobile terminal.When both are identical, show that distance between mobile terminal and user does not change or change very not little, and then finishes this time to regulate font work; When both are different, enter step S314.
S314, triggering font displaying ratio change event.Now show that certain variation has occurred the distance between mobile terminal and user, needs to change the demonstration size of font.
By the present embodiment, mobile terminal, by two range data, judges the distance between mobile terminal and user more accurately, and corresponding automatic adjusting.
In addition, the invention is not restricted to automatically to regulate the size of font, similarly, can regulate the displaying contents such as picture, icon or pattern in screen size.
In sum, the present invention obtains the distance and bearing data between human eye or people's ear and mobile terminal by range sensor and camera, judge according to predefined control law best volume and the font size that these data are corresponding again, thereby realize automatically regulating volume and the font size of mobile terminal.
Purpose for promoting the understanding of principle of the present invention, be illustrated the preferred embodiment shown in accompanying drawing, and used specific language to describe these embodiment.Yet this specific language is not intended to limit the scope of the invention, the present invention should be construed as comprising all embodiment that usually there will be for those of ordinary skills.In addition, except not element is described as " requisite " or " key " especially, otherwise do not have element or module to be absolutely necessary to enforcement of the present invention.
Although the above has described exemplary embodiment of the present invention in detail, there is in the technical field of the invention common practise person without departing from the spirit and scope of the present invention, can make various modifications, retouching and modification to embodiments of the invention.But should be appreciated that In the view of those skilled in the art, these modifications, retouching and modification will fall in the spirit and scope of the exemplary embodiment of the present invention that claim limits.
Finally, unless point out here or in addition with the obvious contradiction of context, otherwise methodical step described herein can be with the order execution of any appropriate.
Claims (10)
1. a portable terminal comprises:
The first range sensor, for measuring the first range data between user and mobile phone;
The second distance transducer, for measuring the second distance data between user and mobile phone;
Camera, have face identification functions, and camera is measured the bearing data of people's face in screen,
Processor, by judging whether the first range data and second distance data exceed the measuring range of setting and judge by the facial contour of identifying in the image of catching whether the image of catching is normal facial contour, determines that whether the first range data and second distance data are effective;
Wherein, processor, according to being judged as effective the first range data and/or being judged as effective second distance data and described bearing data obtains people's eyes and/or ear to the final distance of loud speaker or receiver, then obtains with this finally apart from corresponding volume and/or displaying ratio.
2. portable terminal according to claim 1 also comprises:
Memory, the corresponding relation of the corresponding relation of memory stores volume and described final distance and/or displaying ratio and described final distance,
Wherein, processor obtains corresponding volume and/or displaying ratio to the final distance of loud speaker or receiver from memory according to people's eyes and/or ear.
3. portable terminal according to claim 2 also comprises:
Judge module, the volume that receiving processor obtains and/or displaying ratio, whether the volume that the volume that decision processor is obtained and/or displaying ratio are current with portable terminal and/or displaying ratio be identical, if different, trigger volume and change event and/or displaying ratio change event, with volume and/or the displaying ratio of automatically regulating portable terminal.
4. portable terminal according to claim 2, wherein,
Whether the volume that processor judgement is obtained and/or displaying ratio volume and/or the displaying ratio current with portable terminal be identical, if different, automatically regulates volume and/or the displaying ratio of portable terminal.
5. according to the described portable terminal of any one in claim 1-4, wherein,
The first range sensor and camera be positioned at the receiver of portable terminal or loud speaker around, the second distance transducer be positioned at the below of display screen or portable terminal the bottom button around.
6. according to the described portable terminal of any one in claim 1-4, wherein,
Except the first range sensor and second distance transducer, portable terminal also comprises the range sensor that is positioned at other positions, and the valid data in the range data that portable terminal records according to all range sensors are regulated volume and/or the displaying ratio of portable terminal automatically.
7. automatically regulate the volume of portable terminal and/or the method for displaying ratio for one kind, comprising:
The first range sensor is measured the first range data between user and mobile phone;
Second distance data between second distance sensor measurement user and mobile phone;
Camera is measured the bearing data of people's face in screen, and whether the image of catching by the facial contour judgement in the identification image of catching is normal facial contour and by judging whether the first range data and second distance data exceed the measuring range of setting, determines that whether the first range data and second distance data are effective;
Portable terminal is according to being judged as effective the first range data and/or being judged as effective second distance data and described bearing data obtains people's eyes and/or the ear final distance to loud speaker or receiver, then obtain volume and/or the displaying ratio corresponding with this final distance, and the volume of portable terminal and/or displaying ratio are adjusted to described corresponding volume and/or displaying ratio.
8. automatically regulate the volume of portable terminal and/or the method for displaying ratio for one kind, comprising:
The first range sensor is set and enters mode of operation, gather the first range data D1;
Camera is set and enters mode of operation, the image in seizure portable terminal screen the place ahead during gathering D1 or in the contiguous time;
Whether the integrity degree of the facial contour in the image that judgement is caught is lower than predetermined ratio, when lower than predetermined ratio, judge that the first range data D1 is invalid, finish the automatic adjusting of volume and/or displaying ratio, when being more than or equal to predetermined ratio, whether there is the shape outside facial contour in the presumptive area of the image that judgement is caught, if there is the shape outside facial contour, judge that the first range data D1 is invalid, enter step S206, if do not there is the shape outside facial contour, judge whether the first range data D1 exceeds the measuring range of setting, when exceeding the measuring range of setting, enter step S206, when not exceeding the measuring range of setting, judge that the first range data D1 is effective, enter step S209,
Step S206: the second distance transducer is set and enters mode of operation, gather second distance data D2;
Whether there is the shape outside facial contour in the presumptive area of the image that judgement is caught, if there is the shape outside facial contour, judge that second distance data D2 is invalid, finish the automatic adjusting of volume and/or displaying ratio, if do not there is the shape outside facial contour, judge whether second distance data D2 exceeds the measuring range of setting, when exceeding the measuring range of setting, finish the automatic adjusting of this volume and/or displaying ratio, when not exceeding the measuring range of setting, judge that second distance data D2 is effective, enter step S209;
Step S209: by face identification functions identification people's ear or the orientation C of human eye in mobile terminal screen of camera;
Determine people's ear or the eyes final distance B 3 to loud speaker or receiver according to the valid data in D1 and D2 and orientation C, and then obtain level of sound volume R and/or displaying ratio P correspondingly;
The level of sound volume of portable terminal is adjusted to obtained level of sound volume R and/or the displaying ratio of the pattern in portable terminal or word is adjusted to obtained displaying ratio P.
9. automatically regulate the volume of portable terminal and/or the method for displaying ratio for one kind, comprising:
The first range sensor is set and enters mode of operation, gather the first range data D1;
Camera is set and enters mode of operation, the image in seizure portable terminal screen the place ahead during gathering D1 or in the contiguous time;
Whether the integrity degree of the facial contour in the image that judgement is caught is lower than predetermined ratio, when lower than predetermined ratio, judge that the first range data D1 is invalid, when being more than or equal to predetermined ratio, whether there is the shape outside facial contour in the presumptive area of the image that judgement is caught, if there is the shape outside facial contour, judge that the first range data D1 is invalid, if do not there is the shape outside facial contour, judge whether the first range data D1 exceeds the measuring range of setting, when exceeding the measuring range of setting, judge that the first range data D1 is invalid, when not exceeding the measuring range of setting, judge that the first range data D1 is effective,
The second distance transducer is set and enters mode of operation, gather second distance data D2;
Whether the integrity degree of the facial contour in the image that judgement is caught is lower than predetermined ratio, when lower than predetermined ratio, judge that second distance data D2 is invalid, when being more than or equal to predetermined ratio, whether there is the shape outside facial contour in the presumptive area of the image that judgement is caught, if there is the shape outside facial contour, judge that second distance data D2 is invalid, if do not there is the shape outside facial contour, judge whether second distance data D2 exceeds the measuring range of setting, when exceeding the measuring range of setting, judge that second distance data D2 is invalid, when not exceeding the measuring range of setting, judge that second distance data D2 is effective, if the first range data D1, second distance data D2 are all invalid, finish this adjusting work,
Face identification functions identification people's ear or the orientation C of human eye in mobile terminal screen by camera;
The ear of determining the people according to the valid data in the first range data D1 and second distance data D2 and orientation C or eyes are to the final distance B 3 of loud speaker or receiver, and then obtain level of sound volume R and/or displaying ratio P correspondingly;
The level of sound volume of portable terminal is adjusted to obtained level of sound volume R and/or the displaying ratio of the pattern in portable terminal or word is adjusted to obtained displaying ratio P.
10. according to the volume of the described automatic adjusting portable terminal of any one and/or the method for displaying ratio in claim 7-9, comprising:
Judge that by camera people's face is in side face pattern or positive face pattern, if in side face pattern, measure and calculate the final distance of an ear to loud speaker or receiver, if in positive face pattern, measure and calculate the final distance of two ear line centers to loud speaker or receiver.
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