CN103425275A - Sensing module and sensing method both applied to optical mouse and provided with electricity-saving function - Google Patents
Sensing module and sensing method both applied to optical mouse and provided with electricity-saving function Download PDFInfo
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- CN103425275A CN103425275A CN2012101543966A CN201210154396A CN103425275A CN 103425275 A CN103425275 A CN 103425275A CN 2012101543966 A CN2012101543966 A CN 2012101543966A CN 201210154396 A CN201210154396 A CN 201210154396A CN 103425275 A CN103425275 A CN 103425275A
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Abstract
The invention provides a sensing module applied to an optical mouse and provided with an electricity-saving function. The sensing module comprises a light source, a first sensor, a first detection unit, a second sensor, a second detection unit and a controller, the light source provides a light ray, the first sensor responds to at least part of the light ray to detect a first image corresponding to a working face so as to generate a first sensing signal, the first detection unit responds to the first sensing signal to generate a displacement signal, the second sensor responds to at least part of the light ray to detect a second image corresponding to an article so as to generate a second sensing signal, the second detection unit responds to the second sensing signal to generate a touch signal corresponding to the article, and a control unit responds to the touch signal to output a control signal so as to enable the first detection unit to respond to the control signal to be operated in a dormant state or a sensing state. The invention further provides a sensing method applied to the optical mouse and provided with the electricity-saving function.
Description
Technical field
The present invention relates to a kind of sensing module of tool electricity-saving function, but sensing module and method thereof that particularly whether a kind of sensing touching signals enters electricity-saving function with decision.
Background technology
Computer institute's role in human lives now is more and more important and diversified, from past work as the instrument of document processing or sequential operation, to audio-visual video and the electronic game amusement of complexity today.Shoulder the mouse of interface control important task, also along with the enhancing of computer function, upgrade gradually progressive, its induction technology, from applying traditional spin, pulley and light-emitting diode, is further used the laser diode that produces same tone (coherent) light.Therefore the function of mouse is controlled from simple vernier, extends to gradually various additional functions such as having picture convergent-divergent, identification of fingerprint, allows the user can control more like a cork computer.
Optical mouse is the main flow of current mouse, and that the optical mouse of all kinds is divided into again is wired, wireless, the variations such as multifunction key or singly-bound are arranged, and power consumption separately is not identical.Optical mouse provides it to operate required electric power with inner battery, because the electric power of battery is extremely limited, therefore usually possesses the function of battery saving mode.
In optical mouse, usually can utilize image sensor to carry out the sensed displacement signal, therefore, when sensor does not sense image difference that displacement signal or image sensor sense and is less than certain critical value, mouse can enter battery saving mode.
Yet, when the image incidental information sensed is excessive, the displacement signal that image sensor senses can be inaccurate, on the other hand, if the image difference that noise also can make image sensor sense is excessive, and can't enter battery saving mode.
In addition, when mouse enters battery saving mode, usually also need a period of time not use to determine the user, so this section time image sensor detecting position shifting signal and continue electric consumption unceasingly, if therefore can reduce the electrical source consumption of a period of time can improve the effect of power saving.On the other hand, mouse, in battery saving mode, also needs the time shutter of growing, and has also further increased electrical source consumption.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of sensing module and method for sensing that is applied to the tool electricity-saving function of optical mouse.
To achieve these goals, the invention provides a kind of sensing module of tool electricity-saving function, be applied to have the optical mouse an of upper surface and a lower surface, optical mouse has a upper surface and a lower surface, mouse action is on a workplace, and the lower surface of optical mouse is relative with workplace.This sensing module includes a light source, one first sensor, one first detecting unit, one second sensor, one second detecting unit and a controller.Wherein light source is in order to provide a light; The first sensor is responded at least part of light to detect one first image corresponding to a workplace, to produce one first sensing signal; The first detecting unit is in order to respond the first sensing signal to produce a displacement signal; The second sensor is in order to respond at least part of light to detect one second image corresponding to an object, to produce one second sensing signal; The second detecting unit is in order to respond the second sensing signal to produce the touching signals corresponding to object; Control module in order to the touching signals of responding the second detecting unit to export a control signal, so that the first detecting unit is responded control signal and operated in a dormant state or a sense conditions.
Above-mentioned sensing module, wherein this objects operating is in this upper surface of this optical mouse.
Above-mentioned sensing module, wherein this light source is a light emitting diode or a laser diode.
Above-mentioned sensing module, wherein this first sensor and/or this second sensor are an image sensor.
Above-mentioned sensing module, the finger that wherein this object is the user.
Above-mentioned sensing module, also include a light source controller, in order to the unlatching of periodically controlling this light source or close.
Above-mentioned sensing module, wherein this first detecting unit produces this displacement signal according to an eigenwert of this first sensing signal.
Above-mentioned sensing module, wherein this first detecting unit produces this displacement signal according to a brightness changing value of this first sensing signal.
Above-mentioned sensing module, wherein this second detecting unit according to a brightness changing value of this second sensing signal to produce this touching signals.
Above-mentioned sensing module, the brightness value that brightness value when wherein this brightness changing value is opened with this light source and/or this light source are closed is relevant.
Above-mentioned sensing module, a difference of the brightness value that brightness value when wherein this brightness changing value is opened for this light source and this light source are closed.
In order to realize better above-mentioned purpose, the present invention also provides a kind of method for sensing that is applied to the tool electricity-saving function of optical mouse, and method includes the following step: periodically open or close a light source, so that light source produces a light; Respond at least part of light, to detect one first image corresponding to a workplace, to produce one first sensing signal; Respond the first sensing signal to produce a displacement signal; Respond at least part of light, to detect one second image corresponding to an object, to produce one second sensing signal; Respond the second sensing signal to produce the touching signals corresponding to object; Respond touching signals to export a control signal, produce the step of displacement signal with activation or anergy.
Above-mentioned method for sensing, wherein this displacement signal produces according to an eigenwert of this first sensing signal.
Above-mentioned method for sensing, wherein this displacement signal produces according to a brightness changing value of this first sensing signal.
Above-mentioned method for sensing, wherein this this touching signals produces according to a brightness changing value of this second sensing signal.
Above-mentioned method for sensing, the brightness value that brightness value when wherein this brightness changing value is opened with this light source and/or this light source are closed is relevant.
Above-mentioned method for sensing, a difference of the brightness value that brightness value when wherein this brightness changing value is opened for this light source and this light source are closed.
Technique effect of the present invention is: the sensing module in the mouse of prior art utilizes the mode of detecting position shifting signal to determine whether to enter battery saving mode, and whether therefore under power down mode, still must make detecting unit maintain running has displacement signal to produce to detect.The present invention uses the mode that detects object (or finger) touch-control, makes and does not need to maintain the required power supply of detecting position shifting signal under power down mode, has further reduced the electrical source consumption of power down mode.
Below in conjunction with the drawings and specific embodiments, describe the present invention, but not as a limitation of the invention.
The accompanying drawing explanation
The system chart of the sensing module that Fig. 1 is tool electricity-saving function disclosed in this invention;
The process flow diagram of the method for sensing that Fig. 2 is tool electricity-saving function disclosed in this invention.
Wherein, Reference numeral
10 light sources
11 first sensors
12 first detecting units
13 second sensors
14 second detecting units
15 controllers
16 light source controllers
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present invention and principle of work are described in detail:
Below describe detailed features of the present invention and advantage in detail in embodiment, its content is enough to make those skilled in the art understand technology contents of the present invention and implement according to this, and, according to the disclosed content of this instructions, claim and accompanying drawing, those skilled in the art can understand purpose and the advantage that the present invention is relevant easily.Following embodiment further describes viewpoint of the present invention, but non-to limit anyways category of the present invention.
Please refer to Fig. 1, is the system chart of the sensing module of the tool electricity-saving function that is applied to optical mouse.Sensing module includes a light source 10, one first sensor 11, one first detecting unit 12, one second sensor 13, one second detecting unit 14 and a controller 15.
General optical mouse can be defined as has a upper surface and a lower surface, and the optics mouse action is on a workplace usually, and the lower surface of optical mouse is relative with workplace.The upper surface of optical mouse is generally the operating surface of object, so object operates in the upper surface of optical mouse usually.
The first sensor 11 in order at least part of light of responding light source 10 and providing to detect one first image corresponding to a workplace, to produce one first sensing signal.And one first detecting unit 12 is connected with the first sensor 11, in order to respond the first sensing signal that the first sensor 11 produces to produce a displacement signal.In one embodiment, the first sensor 11 is an image sensor, for example the CMOS image sensor.This displacement signal will be used for the corresponding displacement that produces the mouse index.
The second sensor 13, at least part of light that response light source 10 provides is to detect one second image corresponding to an object, to produce one second sensing signal.And the second detecting unit 14 is connected with the second sensor 13, respond the second sensing signal of the second sensor 13 generations to produce the touching signals corresponding to this object.This touching signals will be used for making the first sensor 11 and the first detecting unit 12 to enter mode of operation or power down mode.In one embodiment, the second sensor 13 is an image sensor, for example the CMOS image sensor.Further, the target that the second sensor 13 will detect, be the state of user's touch mouse.The meaning reflection ray that the second sensor 13 detects, the reflection ray of reflection from the user, for example reflect from the palm portion of user's mouse beacon or the light of finger part, the second sensor 13 can obtain by this is enough to judge the whether image information of touch mouse of user.
It should be noted that in addition, the first sensor 11 and the second sensor 13, can coordinate optical mouse internal structure design placement location, then by suitable optical facilities, the for example design of lens and/or light guide, the light that workplace and user are reflected, direct into respectively this first sensor 11 and the second sensor 13.
In an embodiment in the present invention, the first detecting unit 12 produces displacement signal according to an eigenwert of the first sensing signal.In another embodiment in the present invention, the first detecting unit 12 produces displacement signal according to a brightness changing value of the first sensing signal.
In an embodiment in the present invention, the second detecting unit 14 according to a brightness changing value of the second sensing signal to produce touching signals.That is utilizing light source periodically open or close, the brightness that detects finger contact changes to have judged whether touching, so the brightness value that brightness value when this brightness changing value is opened with light source and/or light source are closed is relevant.In an embodiment in the present invention, a difference of the brightness value that the brightness value when brightness changing value is the light source unlatching and light source are closed.In other words, when light source is opened, if finger also has touch mouse, the second sensor 13 can detect from pointing next reflected light, and produces the second sensing signal; When light source is opened, if point not touch mouse, the second sensor 13 just can not detect reflected light.
15 touching signals of responding the second detecting unit 14 of controller are to export a control signal, so that the first detecting unit 12 is responded control signal and operated in a dormant state or a sense conditions.
That is, when touching signals having been detected, the detection of execute bit shifting signal and calculating.When touching signals not detected, enter dormant state, do not carry out the calculating of motion-vector.While certainly being applied to mouse, the control signal that also can utilize controller 15 to produce, so that whole system is responded this control signal and dormant state or sense conditions.
In general computer system, the system armed state is the power supply of closing monitor and hard disk, but does not shut down also not the data storing of storer to hard disk, waits the user to press arbitrary key, just returns back to the state before awaiting orders.The system hibernates state be by the data storing of storer to hard disk, then shutdown powered-down, after waiting again start, then the state from the hard disk reading out data returns back to dormancy.But, in general mouse, do not do especially such differentiation.Dormant state herein can be also armed state, refers to the power supply supply of most of module is closed, only to maintaining the needed element of sensing, powered, and to save power supply, be also general alleged power down mode.Certainly sense conditions refers to general normal operating state.
Please refer to Fig. 2, is the process flow diagram of the method for sensing of the tool electricity-saving function that is applied to optical mouse disclosed in this invention.
At first, periodically open or close a light source, so that light source produces a light (step 20).Then respond at least part of light, to detect one first image corresponding to a workplace, to produce one first sensing signal (step 21).Respond again the first sensing signal to produce a displacement signal (step 22).
Then respond at least part of light, to detect one second image corresponding to an object, to produce one second sensing signal (step 23).Respond again the second sensing signal to produce the touching signals (step 24) whether existed corresponding to object; This external object is generally user's finger.Certainly in fact can replace similarly to operate object, pointer for example, as long as can be utilized by the object of second its operation of sensor sensing.
Finally respond touching signals to export a control signal, produce the step (step 25) of displacement signal with activation or anergy.
In an embodiment in the present invention, the first detecting unit 12 produces displacement signal according to an eigenwert of the first sensing signal.In another embodiment in the present invention, the first detecting unit 12 produces displacement signal according to a brightness changing value of the first sensing signal.The brightness value that brightness value when this brightness changing value is opened with light source 10 and/or light source are closed is relevant.In an embodiment in the present invention, a difference of the brightness value that the brightness value when brightness changing value is the light source unlatching and light source are closed.
Although aforesaid embodiment points out that the present invention can be applicable to optical mouse, but in fact not as limit, therefore there is the peripheral control device that is similar to mouse function and can apply sensing module disclosed by the invention, all can apply sensing module disclosed in this invention so long as be used for controlling the peripheral device of the operation of video screen vernier.
The sensing module of tool electricity-saving function of the present invention and method for sensing thereof, utilize another sensor whether to have external object to touch mouse to detect, whether to determine the output displacement signal or to enter power down mode, and do not use the mode of original detecting position shifting signal to determine whether entering power down mode.Technological means disclosed in this invention has solved the problem that prior art can't further improve power saving effect.
Certainly; the present invention also can have other various embodiments; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (17)
1. a sensing module that is applied to the tool electricity-saving function of optical mouse, this optical mouse has a upper surface and a lower surface, it is characterized in that, includes:
One light source, provide a light;
One first sensor, respond at least part of this light to detect one first image corresponding to a workplace, and to produce one first sensing signal, wherein this optical mouse operates on this workplace, and this lower surface of this optical mouse is relative with this workplace;
One first detecting unit, respond this first sensing signal to produce a displacement signal;
One second sensor, respond at least part of this light to detect one second image corresponding to an object, to produce one second sensing signal;
One second detecting unit, respond this second sensing signal to produce the touching signals corresponding to this object; And
One control module, respond this touching signals of this second detecting unit to export a control signal, so that this first detecting unit is responded this control signal and operated in a dormant state or a sense conditions.
2. sensing module as claimed in claim 1, is characterized in that, this objects operating is in this upper surface of this optical mouse.
3. sensing module as claimed in claim 1, is characterized in that, this light source is a light emitting diode or a laser diode.
4. sensing module as claimed in claim 1, is characterized in that, this first sensor and/or this second sensor are an image sensor.
5. sensing module as claimed in claim 1, is characterized in that, the finger that this object is the user.
6. sensing module as claimed in claim 1, is characterized in that, also includes a light source controller, in order to the unlatching of periodically controlling this light source or close.
7. sensing module as claimed in claim 1, is characterized in that, this first detecting unit produces this displacement signal according to an eigenwert of this first sensing signal.
8. sensing module as claimed in claim 1, is characterized in that, this first detecting unit produces this displacement signal according to a brightness changing value of this first sensing signal.
9. sensing module as claimed in claim 1, is characterized in that, this second detecting unit according to a brightness changing value of this second sensing signal to produce this touching signals.
10. sensing module as claimed in claim 9, is characterized in that, the brightness value that brightness value when this brightness changing value is opened with this light source and/or this light source are closed is relevant.
11. sensing module as claimed in claim 9, is characterized in that, a difference of the brightness value that brightness value when this brightness changing value is opened for this light source and this light source are closed.
12. a method for sensing that is applied to the tool electricity-saving function of optical mouse, is characterized in that, the method includes:
Periodically open or close a light source, so that this light source produces a light;
Respond this light at least partly, to detect one first image corresponding to a workplace, to produce one first sensing signal;
Respond this first sensing signal to produce a displacement signal;
Respond this light at least partly, to detect one second image corresponding to an object, to produce one second sensing signal;
Respond this second sensing signal to produce the touching signals corresponding to this object; And
Respond this touching signals to export a control signal, with activation or anergy, this produces the step of this displacement signal.
13. method for sensing as claimed in claim 12, is characterized in that, this displacement signal produces according to an eigenwert of this first sensing signal.
14. method for sensing as claimed in claim 12, is characterized in that, this displacement signal produces according to a brightness changing value of this first sensing signal.
15. method for sensing as claimed in claim 12, is characterized in that, this this touching signals produces according to a brightness changing value of this second sensing signal.
16. method for sensing as claimed in claim 15, is characterized in that, the brightness value that brightness value when this brightness changing value is opened with this light source and/or this light source are closed is relevant.
17. method for sensing as claimed in claim 15, is characterized in that, a difference of the brightness value that brightness value when this brightness changing value is opened for this light source and this light source are closed.
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| CN108320721A (en) * | 2017-01-17 | 2018-07-24 | 华硕电脑股份有限公司 | Brightness regulating apparatus and its brightness adjusting method |
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Application publication date: 20131204 |