CN103927026B - Optical mouse apparatus and using in the method for optical mouse apparatus - Google Patents
Optical mouse apparatus and using in the method for optical mouse apparatus Download PDFInfo
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- CN103927026B CN103927026B CN201310015378.4A CN201310015378A CN103927026B CN 103927026 B CN103927026 B CN 103927026B CN 201310015378 A CN201310015378 A CN 201310015378A CN 103927026 B CN103927026 B CN 103927026B
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Abstract
The invention discloses a kind of optical mouse apparatus, including light source cell, sensing unit and processing unit.Light source cell is generated and transmitted by optical signalling, and optical signalling is transmitted on surface reflect generation optical reflection signal；Sensing unit produces according to optical reflection signal and generates image, and generating image is the picture displacement estimating optical mouse apparatus；Processing unit is in order to control light source cell transmitting optics signal, and the image trend of the subregion scope according to multiple sensing pictures continuous in generation image, it is judged that the use state that optical mouse apparatus is current.The use state of optical mouse apparatus is judged by image trend, can correctly judge that optical mouse apparatus is the most just being raised or is simply being used on the most hackly surface at present, therefore, it is possible in time suppress/lock the cursor displacement of mouse to export, the cursor shake situation of display picture on mouse is mitigated or eliminated.
Description
Technical field
The present invention relates to a kind of optical mouse mechanism, particularly with regard to a kind of optical mouse apparatus and use optics Mus
Method in device for mark.
Background technology
It is said that in general, the optical mouse of currently available technology has a photosensory assembly, obtained by this photosensory assembly
Multiple sensed image, and by the operation relatedness comparison of multiple sensed image being obtained the information of detection displacement, but at present
Existing optical mouse does not detect the mechanism whether being raised.Although existing optical mouse is by obtained by photosensory assembly
Sensed image be appreciated that the image quality of sensed image can be poor when optical mouse is raised, but, sensed image
The reason of picture quality degradation also not only limits when optical mouse is raised, when optical mouse is used in the most hackly
Time on surface, the image quality of sensed image also can be deteriorated, and therefore, existing optical mouse cannot correctly judge or detect at present
The most just be raised or be simply used on the most hackly surface, and if the time point being raised cannot be judged,
Then on display picture, the shake situation of cursor of mouse can be aggravated.
Summary of the invention
Therefore, an object of the present invention is open a kind of optical mouse apparatus and uses in this optical mouse apparatus
Method, to reach correctly to judge/detect the most just be raised or be simply used on the most hackly surface at present,
The cursor shake situation of display picture on mouse is mitigated or eliminated, solves problem of the prior art.
According to embodiments of the invention, disclose a kind of optical mouse apparatus.Optical mouse apparatus includes a light source list
Unit, a sensing unit and a processing unit, light source cell is used to be generated and transmitted by optical signalling, and this optical signalling is launched
Producing optical reflection signal to surface, sensing unit is to produce according to this optical reflection signal to generate image, this generation figure
Seeming the picture displacement estimating optical mouse apparatus, processing unit is coupled to light source cell and sensing unit, and in order to
Control light source cell and launch this optical signalling, and in order to according in this generation image, multiple sense the subregion of pictures continuously
The image trend of image, it is judged that the use state of optical mouse apparatus.
Additionally, according to embodiments of the invention, disclose a kind of use method at optical mouse apparatus, include: send out
Penetrating optical signalling, this optical signalling is transmitted on surface produce optical reflection signal；Produce according to this optical reflection signal
Generating image, this generation image is the picture displacement estimating optical mouse apparatus；According in this generation image continuously multiple
The image trend of the subregion image of sensing picture, it is judged that the use state of optical mouse apparatus.
Furthermore, it is an advantage of the current invention that the figure by least one subregion image of multiple sensing pictures continuously
As trend judges the use state of optical mouse apparatus, can correctly judge that optical mouse apparatus is the most just raised at present
Or be simply used on the most hackly surface, therefore, it is possible in time suppress/lock the displacement of cursor of mouse defeated
Go out, the shake situation of display picture on cursor of mouse is mitigated or eliminated.
Accompanying drawing explanation
Fig. 1 is the block schematic diagram of the preferred embodiments of the present invention optical mouse apparatus.
Fig. 2 A is that the optical mouse apparatus shown in Fig. 1 is from being seated in surface to the brightness trend example signal being raised completely
Figure.
Fig. 2 B is that the optical mouse apparatus shown in Fig. 1 is putting brightness example schematic from the teeth outwards.
Fig. 3 A is that the optical mouse apparatus shown in Fig. 1 shows from the brightness trend example being raised completely to being placed on surface
It is intended to.
Fig. 3 B is the brightness example schematic that the optical mouse apparatus shown in Fig. 1 is fully raised.
Fig. 4 is that the optical mouse apparatus shown in Fig. 1 uses the brightness of image of two subregion scopes in sensing picture
Image trend characteristic determines the example schematic of currently used state.Wherein, description of reference numerals is as follows:
100 optical mouse apparatus
101 housings
105 light source cells
110 sensing units
115 processing units
201, the regional extent of 301,401,402 sensed image
Detailed description of the invention
Refer to the block schematic diagram that Fig. 1, Fig. 1 are the preferred embodiments of the present invention optical mouse apparatus 100.Optical mouse
Device 100 includes housing 101, light source cell 105, sensing unit 110 and processing unit 115, and wherein light source cell 105 is
Being used for being generated and transmitted by optical signalling S_opt, this optical signalling S_opt is to be transmitted on a surface reflect generation one optics
Reflected signal S_ref, sensing unit 110 is to produce a generation image according to this optical reflection signal S_ref, and this generation image is
In order to estimate a picture displacement of optical mouse apparatus 100, such as, optical mouse apparatus 100 can be many according to generating in image
Open the cursor shadow generation position of image, calculate the picture displacement of shade, to estimate cursor displacement, additionally, generate in image
Multiple sensing pictures be available for processing unit 115 as reference, the use state current to determine optical mouse apparatus 100, this
In embodiment, current use state refers to whether user has mentioned optical mouse apparatus 100, in other words, current
Use state refers to that optical mouse apparatus 100 is raised and housing 101 leaves this surface or optical mouse apparatus 100 is still put
Housing 101 does not leave this surface on a surface.Processing unit 115 is coupled to light source cell 105 and sensing unit
110, and in order to control light source cell 105 transmitting optics signal S_pot to this surface, and according to generating in image continuously multiple
One image trend characteristic of the brightness of image of the most a part of regional extent of sensing picture, judges optical mouse apparatus
100 current use states, and according to current use state optionally decide whether export light target picture displacement or
It it is suppression/locking light target picture displacement；Brightness of image is to represent with the distribution of grey decision-making 0 ~ 255.It is noted that it is above-mentioned
Light target picture displacement can use other circuit to estimate, or can also be estimated by processing unit 115.
In embodiments of the invention, processing unit 115 is by the image trend characteristic of the brightness of image of sensing picture, it is judged that
Whether optical mouse apparatus 100 is raised or is not raised, and for comparing existing technology, has the correct judgment of height
Rate, when optical mouse apparatus 100 is raised from this surface, is come by the image trend characteristic of the brightness of image of sensing picture
Judge, the situation because of rough surface injustice can be got rid of, it is to avoid erroneous judgement, in equivalence, owing to optical mouse apparatus can be appropriately determined
100 current use states, therefore can reach and only just determine suppression/locking when optical mouse apparatus 100 is actually raised
Light target picture displacement, and other service condition still maintains the operation of output light target picture displacement, enabling alleviate display
On picture, the picture displacement of cursor produces the situation of shake.
In the first embodiment, processing unit 115 is to sentence according to the brightness trend characteristic indicated by image trend characteristic
The use state that disconnected optical mouse apparatus 100 is current.Please arrange in pairs or groups with reference to Fig. 2 A and Fig. 2 B, Fig. 2 A is the optical mouse shown in Fig. 1
Device 100 is the optical mouse shown in Fig. 1 from being seated in a surface to the brightness trend example schematic being raised completely, Fig. 2 B
Device 100 is putting brightness example schematic on a surface.As shown in Figure 2 A, multiple sensing pictures from left to right are respectively
Corresponding optical mouse apparatus 100 is put completely from the teeth outwards, is started to be raised, be raised half and be fully raised not
Brightness value with the sensing picture used in state, Fig. 2 A and Fig. 2 B is that the density degree with site is to represent the light and shade journey of brightness
Degree, the thinnest person in site represents the brightest, and the closeest person in site represents the darkest, when optical mouse apparatus 100 is put from the teeth outwards completely
Time, the sensing picture that sensing unit 110 imaging produces, its brightness is the brightest, otherwise, when optical mouse apparatus 100 is carried completely
When rising or improve, the sensing picture brightness that sensing unit 110 imaging produces is the darkest, in the example shown in Fig. 2 A, processes single
Unit 115 can receive those sensing pictures the most one by one according to time sequencing, post analysis those sensing pictures of being received
Brightness of image obtains or produces image trend characteristic, and in this embodiment, processing unit 115 can be by analysis part region model
The brightness of image enclosed in the namely regional extent 201 shown in Fig. 2 A such as calculates average brightness value to produce image trend
Characteristic, it addition, processing unit 115 can also produce image by the mean flow rate analyzing the image range of whole sensing picture
Trend characteristic, when processing unit 115 receives those sensing pictures from left to right according to time sequencing, can zoning model at once
Enclosing the mean picture brightness of 201, therefore, after have received multiple sensing pictures, processing unit 115 just can analyze at present
Image trend characteristic, the image brightness values in the range of image trend characteristic indicates same subregion is passed over time
Subtracting as shown in Figure 2 A, processing unit 115 can judge that the use state of optical mouse apparatus 100 is by the most just putting
Being transformed to be raised in the air, now in order to reduce cursor shake, processing unit 115 determines suppression/locking output light target
Picture displacement, therefore, for the picture of display, when optical mouse apparatus 100 is raised in the air, the figure of estimation
The output of image displacement can be suppressed, and now the cursor on display picture will not produce shake.
Additionally, as shown in Figure 2 B, if the image trend characteristic analyzed do not indicate image brightness values can be with
The trend that the time of wearing successively decreases, but only minority has suddenly parts of images dimmed in sensing picture, this represent this most dimmed
Sensed image not represent optical mouse apparatus 100 and be raised, and for no other reason than that optical mouse apparatus 100 may use slightly
On the surface of rough injustice, owing to processing unit 115 uses the image trend characteristic according to being analyzed to determine that optical mouse fills
Put 100 current use states, it is possible to getting rid of this optical mouse apparatus 100 may use on hackly surface
Situation, therefore, judges the behaviour of the use state of optical mouse apparatus 100 according to image trend characteristic in embodiments of the invention
Work can efficiently and accurately judge that optical mouse apparatus 100 is the most still put from the teeth outwards or is raised in midair at present
In, thus help in and decide whether to suppression output light target picture displacement, reduce the situation of picture cursor shake.
Please arrange in pairs or groups with reference to Fig. 3 A and Fig. 3 B, Fig. 3 A is that the optical mouse apparatus 100 shown in Fig. 1 is from being raised completely to being put
Putting the brightness trend example schematic on a surface, Fig. 3 B is the brightness that the optical mouse apparatus 100 shown in Fig. 1 is fully raised
Example schematic.As shown in Figure 3A, the corresponding respectively optical mouse apparatus 100 of multiple sensing pictures from left to right is carried completely
Rise, start down to place, place half and put different use states from the teeth outwards, the biography in Fig. 3 A and Fig. 3 B completely
Sense picture brightness value be the density degree with site to represent the bright-dark degree of brightness, the thinnest person in site represents the brightest, site
The closeest person represents the darkest, when optical mouse apparatus 100 is fully raised, and the sensing picture that sensing unit 110 imaging produces
Brightness the darkest, otherwise, when optical mouse apparatus 100 is seated in surface completely, the sensing that sensing unit 110 imaging produces
Picture brightness is the brightest, and in the example shown in Fig. 3 A, processing unit 115 can receive those the most one by one and pass according to time sequencing
Sense picture, post analysis received those sensing pictures brightness of image obtain or produce image trend characteristic, at this
In embodiment, processing unit 115 is by analyzing in the regional extent 301 shown in same subregion scope i.e. Fig. 3 A
Brightness of image such as calculate average brightness value to produce image trend characteristic, it addition, processing unit 115 also can be by analyzing
The mean flow rate of image range of whole sensing picture produces image trend characteristic, when processing unit 115 according to time sequencing from
Left-to-right receive those feel then picture time, can the mean picture brightness of zoning scope 301 at once, therefore, have received
After multiple sensing pictures, processing unit 115 just can analyze current image trend characteristic, when image trend characteristic indicates
Going out the image brightness values in the range of same subregion to be incremented by as shown in Figure 3A over time, processing unit 115 can judge light
The use state learning mouse apparatus 100 is that direct transform is for being seated in surface from being raised in the air, and processing unit 115 now can
In other words output light target picture displacement, is changed into from suppression output and is not suppressed output, therefore, for the picture of display
For, when optical mouse apparatus 100 is just from being raised in the air to when being seated in surface, and the output of image estimated displacement will not
It is suppressed again, now on display picture, can show or update up-to-date cursor displacement.
Additionally, as shown in Figure 3 B, if the image trend characteristic analyzed do not indicate image brightness values can be with
The trend that time of is incremented by, but only minority has suddenly parts of images to brighten in sensing picture, this represent this and brightens suddenly
Sensed image not represent optical mouse apparatus 100 and be placed on surface, and be only possible to because the impact of environmental factors and
Impacted, owing to processing unit 115 uses the image trend characteristic analyzed to determine the use shape of optical mouse apparatus 100
State, so, this situation because of such environmental effects can be got rid of, therefore, according to image trend in embodiments of the invention
Characteristic judges that the operation of the use state of optical mouse apparatus 100 can efficiently and accurately judge optical mouse apparatus 100
The most still use from the teeth outwards or be raised at present, thus help in decide whether to suppression output light target picture displacement,
And no longer suppression exports the time point of cursor displacement, can suitably improve the situation of picture cursor shake.
Furthermore, except the brightness increment indicated by above-mentioned image trend characteristic or descending luminance judge optical mouse apparatus
Beyond the use state of 100, in other embodiments, processing unit 115 can arrange in pairs or groups sensing picture real image brightness and
Above-mentioned image trend characteristic runs the judgement of use state.Referring once again to Fig. 2 A, in the example of Fig. 2 A, processing unit
115 in addition to analyzing image trend characteristic, separately judges that the real image brightness of those sensing pictures falls into the most in order
In suitable brightness range, for example, processing unit 115 is provided with two predetermined brightness threshold values, is high brightness respectively
Threshold value and low-light level threshold value, when the real image brightness sensing picture is higher than high brightness threshold value, represent optics
Mouse apparatus 100 is seated in surface, and when the real image brightness sensing picture is less than low-light level threshold value, represents optics
Mouse apparatus 100 has been raised in the air, and therefore, processing unit 115 can be by analyzing the real image of those sensing pictures
Whether brightness is verified between two threshold values and less than low-light level threshold value higher than high brightness threshold value, position according to along order
The image trend characteristic analyzed, if above-mentioned two condition all meets, then processing unit 115 can determine that now optical mouse
Device 100 is just raised, whereas if the real image brightness of those sensing pictures does not has any one less than low-light level door
Bank value or do not have the luminance bit of any sensed image between two threshold values, then processing unit 115 can judge now optics Mus
Device for mark 100 may use on hackly surface, thus without judging that optical mouse apparatus 100 is just raised, and such one
Come, can suitably get rid of when optical mouse apparatus 100 may use the situation at hackly surface, reach accurately to judge optics
The effect of the use state of mouse apparatus 100.
Additionally, processing unit 115 also can be arranged in pairs or groups, real image brightness and the image trend characteristic of sensing picture judge
Now optical mouse apparatus 100 is the most just being placed from the teeth outwards, referring once again to Fig. 3 A, in the example of Fig. 3 A, processes single
Unit 115, in addition to analyzing image trend characteristic, separately judges that the real image brightness of those sensing pictures falls the most in order
Enter in suitable brightness range, for example, processing unit 115 can be by analyzing the real image brightness of those sensing pictures
No verify and analyzed less than low-light level threshold value, position between two threshold values and higher than high brightness threshold value according to along order
The image trend characteristic gone out, if above-mentioned two condition all meets, then processing unit 115 can determine that now optical mouse apparatus
100 are just placed from the teeth outwards, whereas if the real image brightness of those sensing pictures does not has any one higher than highlighted
Spend threshold value or do not have the luminance bit of any sensed image between two threshold values, then processing unit 115 can judge this time
Learn mouse apparatus 100 may still be raised, thus without judging that optical mouse apparatus 100 is just being placed from the teeth outwards, so
One, can accurately judge the use state of optical mouse apparatus 100.
It addition, in a second embodiment, processing unit 115 is analyzed the image trend characteristic produced and is included real image
The trend of the moving average of brightness, for example, processing unit 115 is the real image brightness calculating those sensing pictures
Moving average, and determine that optical mouse apparatus 100 is current according to the brightness of image trend characteristic representated by moving average
Use state, such as, processing unit 115 analyze image trend characteristic time can calculate nearest three sensing pictures reality bright
Degree moving average, and compare this luminance shifting meansigma methods and a brightness threshold value, when comparative result indicates this luminance shifting
Meansigma methods is less than this brightness threshold value, processes circuit 115 and can judge that optical mouse apparatus 100 is the most just mentioned by user, because of
And select suppression or the output displacement of locking cursor of mouse, reduce the shake situation of cursor on display picture.Otherwise, when comparing knot
Higher than this brightness threshold value, process circuit 115, fruit indicates this luminance shifting meansigma methods can judge that user is the most just by optics
Mouse apparatus 100 is placed on surface, thus selects no longer suppress or lock the output displacement of cursor of mouse it is, change into
Output cursor of mouse displacement.By using the moving average mechanism of brightness, processing unit 115 also can get rid of the situation of erroneous judgement,
For example, the intrinsic brilliance moving average of nearest three sensing pictures, higher than this brightness threshold value, represents current optics Mus
Device for mark 100 is just being put from the teeth outwards, makes the too dark brightness of a certain sensing picture, then if as rough surface injustice
Because the brightness calculated is the concept of moving average, even if so the sensing picture that individual or minority are opened can be because surface be thick
Rough injustice and the darkest, but can't the numerical result of excessive influence intrinsic brilliance moving average, say, that can't
Affecting the image trend characteristic representated by moving average, therefore, the luminance shifting meansigma methods that processing unit 115 is calculated is still
So higher than this brightness threshold value, so, this time point can't be mistaken for user and just mention optics by processing unit 115
Mouse apparatus 100.Therefore, by using the mechanism of luminance shifting meansigma methods, contribute to getting rid of the situation of erroneous judgement, it is to avoid cause mistake
Cursor of mouse displacement locking by mistake.
Additionally, in the 3rd embodiment, it is possible to use the luminance shifting meansigma methods of different length judges optical mouse apparatus
100 current use states.For example, processing unit 115 analyzed produce image trend characteristic include real image
The moving average trend of two different length of brightness, for example, processing unit 115 calculates the reality of those sensing pictures
One short-term moving average of brightness of image and a long-term moving average, and according to representated by the moving average of long and short phase
Brightness of image trend characteristic determine the use state that optical mouse apparatus 100 is current, such as, processing unit 115 can calculate
The intrinsic brilliance moving average of nearest five sensing pictures is as short-term moving average and calculates nearest ten sensing pictures
The intrinsic brilliance moving average in face is as long-term moving average, and it is the most mobile flat with this to compare this short-term moving average
Average, when comparative result indicates this short-term moving average less than long-term moving average, processes circuit 115 and can judge to make
Optical mouse apparatus 100 is the most just mentioned by user, thus selects suppression or the output displacement of locking cursor of mouse, reduces display
The shake situation of cursor on picture.Otherwise, when comparative result indicates short-term moving average higher than long-term moving average,
Process circuit 115 can judge user the most just by optical mouse apparatus 100 by being placed on surface in the air, thus select not
Suppress again or lock the output displacement of cursor of mouse it is, change into exporting cursor of mouse displacement.By using different length
The moving average mechanism of phase, processing unit 115 also can get rid of the situation of erroneous judgement, for example, when short-term moving average is high
In long-term moving average, represent that current optical mouse apparatus 100 is just being put from the teeth outwards, if as rough surface injustice
Make the too dark brightness of a certain sensing picture, then because of the concept that brightness is moving average calculated, even if so single
Or the sensing picture opened of minority can be the darkest because rough surface is uneven, but can't excessive influence rolling average of long and short phase
The numerical result of value, say, that the image trend characteristic representated by long and short phase moving average can't be affected, because of
This, the short-term moving average that processing unit 115 is calculated is still above long-term moving average, so, processes single
This time point can't be mistaken for user and just mention optical mouse apparatus 100 by unit 115.Therefore, by using different length
The moving average mechanism of phase, it helps get rid of the situation of erroneous judgement, it is to avoid cause the cursor of mouse displacement locking of mistake.
Furthermore, in the fourth embodiment, processing unit 115 can multiple sense the multiple of pictures continuously according to generating in image
The image trend characteristic of the brightness of image of subregion scope, judges the use state that optical mouse apparatus 100 is current, and according to
This decides whether output or locking cursor of mouse displacement.Refer to Fig. 4, Fig. 4 is that the optical mouse apparatus 100 shown in Fig. 1 uses
In sensing picture, the image trend characteristic of the brightness of image of two subregion scopes determines that the example of currently used state shows
Being intended to, as shown in Figure 4, Part I regional extent is the region shown in label 401, and Part II regional extent is label
Region shown in 402, by coming certainly according to the trend characteristic of regional extent 401 with the brightness of image in regional extent 402 respectively
Determine the use state that optical mouse apparatus 100 is current, contribute to processing unit 115 and get rid of the situation of erroneous judgement, it is to avoid cause mistake
Cursor of mouse displacement locking.Some regional extents also not only limit two regional extents, use the region of more than three
The trend characteristic of the brightness of image of scope determines the use state that optical mouse apparatus 100 is current, also complies with the skill of the present invention
Art spirit.If additionally, in order to strengthen suppression cursor of mouse shake effect, when arbitrary district in aforementioned some regional extents
The image trend of the brightness of image in the range of territory indicates descending luminance, average brightness is less than brightness threshold value or the phase is average
Value is less than long-term average, and processing unit 115 can determine that optical mouse apparatus 100 is currently just being raised in the air at once, because of
This suppresses/locks the output of mouse cursor at once.
Furthermore, it is noted that it is by the most continuous two that above-mentioned processing unit 115 analyzes the image trend characteristic of gained
The brightness of image of sensing picture produces, but, if for the degree of accuracy promoting analyzed image trend, Ke Yigai
For using the brightness of image of continuous more than three or the most continuous ten sensing pictures to produce, in other words, the essence of the present invention
God is the currently used state being determined optical mouse apparatus by the trend characteristic of the brightness of image of sensing picture continuously, and according to
This decides whether the output of suppression/locking cursor of mouse, and therefore, the number of the picture of sensing continuously no matter used why, all
Fall into scope of the invention.
Furthermore, in the 5th embodiment, an image trend characteristic of the brightness of image of multiple sensing pictures can also continuously
Indicating corresponding exposure value trend, therefore, processing unit 115 is of the brightness of image according to multiple sensing pictures continuously
Image exposure value trend judges that the currently used state of optical mouse apparatus 100 is the most just raised, specifically, when optics Mus
Device for mark 100 separately has an aperture and does not illustrates in FIG, and this aperture is corresponding to the brightness of image of sensing picture, and this aperture is
It is used for when sensing the brightness of image deficiency of picture increasing the image exposure value accuracy rate with raising offset estimation, it practice, such as
Really optical mouse apparatus 100 is just being raised in the air, and the trend characteristic of the brightness of image sensing picture the most continuously can indicate
The trend successively decreased, accordingly, aperture can be adjusted by the control of optical mouse apparatus 100 and continues or require continuously to increase
Image exposure value, therefore, the image exposure value trend of the brightness of image of sensing picture if there is increasing trend and reaches continuously
Maximum exposure value, then it represents that optical mouse apparatus 100 is just being raised in the air, so, processing unit 115 can another root
The use state that optical mouse apparatus 100 is current is determined according to the image exposure value trend of sensing picture continuously.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (20)
1. an optical mouse apparatus, comprises:
One light source cell, is used for being generated and transmitted by optical signalling, and this optical signalling is transmitted on surface produce optical reflection
Signal；
This optical mouse apparatus is characterised by also comprising:
One sensing unit, produces according to this optical reflection signal and generates image, and this generation image is to estimate this optical mouse
The picture displacement of device；
One processing unit, is coupled to this light source cell and this sensing unit, launches this optical signalling in order to control this light source cell,
And the image trend of the subregion image according to multiple images continuous in this generation image, it is judged that this optical mouse apparatus
Use state；
Wherein this processing unit is provided with high brightness threshold value and low-light level threshold value；When the reality detecting this generation image
Brightness of image depends on order higher than this high brightness threshold value, position between two threshold values and when being less than this low-light level threshold value,
This processing unit judges that now this optical mouse apparatus is just raised and leaves this surface；And, when detecting this generation image
Real image brightness according to along order less than this low-light level threshold value, position between two threshold values and higher than this high brightness door
During bank value, this processing unit judges that this optical mouse apparatus is just being placed on a surface.
2. optical mouse apparatus as claimed in claim 1, it is characterised in that: this processing unit is according to this image Trend judgement
This optical mouse apparatus is to be raised and leave this surface or put on a surface.
3. optical mouse apparatus as claimed in claim 1, it is characterised in that: this processing unit is according to this image trend, choosing
Decide whether to selecting property this picture displacement that output is estimated.
4. optical mouse apparatus as claimed in claim 1, it is characterised in that: this processing unit is to analyze in this generation image to connect
The brightness of image of the same subregion scope of continuous three images produces this image trend.
5. optical mouse apparatus as claimed in claim 4, it is characterised in that: when this image trend indicates this with a part of district
When the image brightness values of territory scope successively decreases over time, this processing unit is just to judge this use state of this optical mouse apparatus
Left this surface for being raised by being seated in this surface up conversion, and determine this picture displacement that suppression output is estimated.
6. optical mouse apparatus as claimed in claim 4, it is characterised in that: when this image trend indicates this with a part of district
When the image brightness values of territory scope is incremented by over time, this processing unit is just to judge this use state of this optical mouse apparatus
It is transformed to put on a surface by being raised, and determines this picture displacement that output is estimated.
7. optical mouse apparatus as claimed in claim 4, it is characterised in that: this processing unit is by calculating this with a part of district
The moving average of the brightness of image of territory scope is as this image trend, and it is next with brightness threshold value to compare this moving average
Judge this use state of this optical mouse apparatus, to decide whether this picture displacement that output is estimated accordingly.
8. optical mouse apparatus as claimed in claim 4, it is characterised in that: this processing unit is by calculating this with a part of district
The short-term moving average of the brightness of image of territory scope and long-term moving average are as this image trend, and compare this short-term
Moving average and this long-term moving average judge this use state of this optical mouse apparatus, defeated to decide whether accordingly
Go out this picture displacement estimated.
9. optical mouse apparatus as claimed in claim 4, it is characterised in that: this processing unit is to analyze this generation image respectively
In the first area scope of continuous three images and the brightness of image of second area scope produce the first image trend and second
Image trend, successively decreases over time when any image trend indicates image brightness values, and this processing unit is to judge this optics Mus
This use state of device for mark just leaves this surface by being seated in this surface up conversion for being raised, and determines suppression output institute
This picture displacement of estimation.
10. optical mouse apparatus as claimed in claim 1, it is characterised in that: this processing unit is to analyze in this generation image
The image exposure value trend that the brightness of image of the same subregion scope of continuous three images is corresponding, produces this image
Trend.
11. 1 kinds use the method at optical mouse apparatus, comprise:
Transmitting optics signal, this optical signalling is transmitted on reflecting surface produce optical reflection signal；
The method is characterized in that and also comprise:
Producing according to this optical reflection signal and generate image, this generation image is the figure image position estimating this optical mouse apparatus
Move；
The image trend of the subregion image according to multiple images continuous in this generation image, it is judged that this optical mouse apparatus
Use state；Wherein judge that the step of the use state of this optical mouse apparatus includes:
High brightness threshold value and low-light level threshold value are set；
When detect the real image brightness of this generation image according to along order higher than this high brightness threshold value, position two threshold values it
Between and less than this low-light level threshold value time, it is determined that now this optical mouse apparatus is just raised and leaves this surface；And
When detect the real image brightness of this generation image according to along order less than this low-light level threshold value, position two threshold values it
Between and higher than this high brightness threshold value time, it is determined that this optical mouse apparatus is just being placed on a surface.
12. methods as claimed in claim 11, it is characterised in that: judge the step of this use state of this optical mouse apparatus
Comprise:
According to this image trend, it is judged that this optical mouse apparatus is to be raised and leave this surface or put on a surface.
13. methods as claimed in claim 11, it is characterised in that additionally comprise:
According to this image trend, optionally decide whether this picture displacement that output is estimated.
14. methods as claimed in claim 11, it is characterised in that additionally comprise:
Analyze in this generation image the brightness of image of the most a part of regional extent in the most continuous three images to produce
This image trend.
15. methods as claimed in claim 14, it is characterised in that: judge the step of this use state of this optical mouse apparatus
Comprise:
When the image brightness values that this image trend indicates this same subregion scope successively decreases over time, it is determined that this optics
This use state of mouse apparatus just leaves this surface by being seated in this surface up conversion for being raised, and determines suppression output
This picture displacement estimated.
16. methods as claimed in claim 14, it is characterised in that: judge the step of this use state of this optical mouse apparatus
Comprise:
When the image brightness values that this image trend indicates this same subregion scope is incremented by over time, it is determined that this optics
This use state of mouse apparatus just is transformed to put on a surface by being raised, and determines this figure image position that output is estimated
Move.
17. methods as claimed in claim 14, it is characterised in that: judge the step of this use state of this optical mouse apparatus
Comprise:
Calculate the moving average of brightness of image of this same subregion scope as this image trend；And
Relatively this moving average and brightness threshold value judges this use state of this optical mouse apparatus, to determine accordingly to be
This picture displacement that no output is estimated.
18. methods as described in claim 14, it is characterised in that: judge the step of this use state of this optical mouse apparatus
Suddenly comprise:
Calculate short-term moving average and the long-term moving average of brightness of image of this same subregion scope as this figure
As trend；And
Relatively this short-term moving average and this long-term moving average judges this use state of this optical mouse apparatus, with
Decide whether this picture displacement that output is estimated accordingly.
19. methods as claimed in claim 14, it is characterised in that: judge the step of this use state of this optical mouse apparatus
Comprise:
Analyze the first area scope of continuous three images in this generation image respectively next with the brightness of image of second area scope
Produce the first image trend and the second image trend；And
Successively decrease over time when any image trend indicates image brightness values, it is determined that this use state of this optical mouse apparatus
Just leave this surface for being raised by being seated in this surface up conversion, and determine this picture displacement that suppression output is estimated.
20. methods as claimed in claim 11, it is characterised in that additionally comprise:
The image that the brightness of image of the same subregion scope analyzing continuous three images in this generation image is corresponding exposes
Light value trend, produces this image trend.
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| CN201310015378.4A CN103927026B (en) | 2013-01-16 | 2013-01-16 | Optical mouse apparatus and using in the method for optical mouse apparatus |
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| CN103927026B true CN103927026B (en) | 2016-12-28 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200632861A (en) * | 2004-12-15 | 2006-09-16 | Em Microelectronic Marin Sa | Improved lift detection mechanism for optical mouse sensor |
| TWM374099U (en) * | 2009-06-24 | 2010-02-11 | Pixart Imaging Inc | Optical mouse |
| TW201207673A (en) * | 2010-08-13 | 2012-02-16 | Pixart Imaging Inc | Lift detection method for optical mouse and optical mouse using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI230315B (en) * | 2004-01-16 | 2005-04-01 | Pixart Imaging Inc | An image capture device and a method of the image exposure process |
| US20080030458A1 (en) * | 2006-08-07 | 2008-02-07 | Rene Helbing | Inertial input apparatus and method with optical motion state detection |
| US20090135140A1 (en) * | 2007-11-27 | 2009-05-28 | Logitech Europe S.A. | System and method for accurate lift-detection of an input device |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200632861A (en) * | 2004-12-15 | 2006-09-16 | Em Microelectronic Marin Sa | Improved lift detection mechanism for optical mouse sensor |
| TWM374099U (en) * | 2009-06-24 | 2010-02-11 | Pixart Imaging Inc | Optical mouse |
| TW201207673A (en) * | 2010-08-13 | 2012-02-16 | Pixart Imaging Inc | Lift detection method for optical mouse and optical mouse using the same |
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| CN103927026A (en) | 2014-07-16 |
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