CN104281331B - Guider and its startup method - Google Patents
Guider and its startup method Download PDFInfo
- Publication number
- CN104281331B CN104281331B CN201310294014.4A CN201310294014A CN104281331B CN 104281331 B CN104281331 B CN 104281331B CN 201310294014 A CN201310294014 A CN 201310294014A CN 104281331 B CN104281331 B CN 104281331B
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- China
- Prior art keywords
- control plate
- touch control
- optical touch
- guider
- optical
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
Abstract
The invention discloses a kind of method for detecting object's position to start guider.The guider has housing, optical touch control plate and touch-control processing unit.The optical touch control plate is arranged at the upper surface of the housing, and the touch-control processing unit is arranged in the housing and electrically connects the optical touch control plate.Methods described includes output light detection signal, receive the light reflected signal from the object, the smooth reflected signal is analyzed to obtain intensity level, judge whether the object is located at optical touch control plate top according to the intensity level, and the object is located at when above the optical touch control plate, switches the touch-control processing unit and enter mode of operation.The constituent components of guider of the present invention are simple, cheap for manufacturing cost and assembling is easily, can detecting real-time effective instruction is rapidly produced to the operation behavior of user, therefore the ease of use of guider can be greatly improved, it helps the market competitiveness of enhanced products.
Description
Technical field
The present invention relates to a kind of guider and its startup method, object's position can be detected in real time more particularly to one kind
The guider and its startup method of start-up operation function.
Background technology
Traditional optical touch control mouse exports detected light to read the position of user's finger using optical detector, and leads to
Cross the Strength Changes of analysis reflected light to judge the motion track of user's finger, be converted to accordingly with according to the motion track
Control instruction.Traditional optical formula contact control mouse can automatically switch into park mode, dormancy in the case of untapped for a long time
The optical detector of pattern exports the detected light of low sampling frequency, by saving power consumption.When optical detector is by low sampling frequency
The detected light of rate reads acquisition image and changes, and can determine whether that user has started to operate optical touch control mouse, therefore go again
Drive optical detector to export the detected light of high sampling frequency, optical touch control mouse is switched back into mode of operation.
But the shortcoming of traditional optical formula contact control mouse is, using low sampling frequency detected light cannot detecting real-time to making
After the touch control operation behavior of executable portion, optical detector just reads for the operation behavior of user, often user's finger
Image changes, and implies that and optical detector is switched into work by just improving the sampling frequency of detected light after one section of time delay
Operation mode.And within this section of time delay, the instruction produced by user's operation optical touch control mouse belongs to illegal command,
Can so cause user significantly inconvenient, therefore how designing one kind can predict user's behavior with real-time start-up operation function
Optical touch control mouse, just give priority to target for related industry.
The content of the invention
The present invention provides a kind of guider and its startup method for detecting the object's position function of start-up operation in real time,
It is above-mentioned to solve the problems, such as.
The present invention discloses a kind of method for detecting object's position to start guider.The guider have housing,
Optical touch control plate and touch-control processing unit.The optical touch control plate is arranged at the upper surface of the housing, at the touch-control
Reason unit is arranged in the housing and electrically connects the optical touch control plate.Methods described includes output light detection signal,
The light reflected signal from the object is received, the smooth reflected signal is analyzed to obtain intensity level, is sentenced according to the intensity level
Whether the object that breaks is located at optical touch control plate top, and the object is located at optical touch control plate top
When, switch the touch-control processing unit and enter mode of operation.
The situation above the optical touch control plate is located at invention additionally discloses the object includes the object vacantly
On the optical touch control plate, and the object is actual touches the optical touch control plate.
Invention additionally discloses judge the object whether be located at the optical touch control plate above method include compare institute
When stating intensity level and default value, and the intensity level more than the default value, judge that the relatively described optical profile type of the object is touched
Control the position of plate.
Include the first threshold value and the second threshold value invention additionally discloses the default value, second threshold value is more than institute
State the first threshold value.The intensity level is more than first threshold value but during less than second threshold value, and the object is hanging
Ground is located on the optical touch control plate.
When being more than second threshold value invention additionally discloses the intensity level, the object is actual to touch the optics
Formula Trackpad.
Further include to check a switch of the guider invention additionally discloses methods described, and opened described in
The state of pass, decides whether that the coordinate detecting unit for switching the guider enters mode of operation.
Invention additionally discloses a kind of detecting object's position with the guider of start-up operation function, the guider includes
Housing, optical touch control plate, touch-control processing unit, optical sensing unit and controller.The optical touch control plate is arranged on
The upper surface of the housing.The touch-control processing unit is arranged in the housing and electrically connects the optical touch control plate.
The optical sensing unit is arranged in the housing.The optical sensing unit output light detection signal is detecting positioned at described
Object outside housing, and receive the light reflected signal from the object.The controller electrically connects the touch-control processing unit
With the optical sensing unit.The controller analyzes the smooth reflected signal to obtain intensity level, is sentenced according to the intensity level
Whether the object that breaks is located at optical touch control plate top, and is located above the optical touch control plate in the object
When, switch the touch-control processing unit and enter mode of operation.
Coordinate detecting unit is further included invention additionally discloses the guider, the controller is electrically connected.It is described
Coordinate detecting unit is used for detecting the coordinate of the guider.
Switch is further included invention additionally discloses the guider, the controller is electrically connected.The controller according to
Enter mode of operation according to whether the Determines of the switch switch the coordinate detecting unit.
The present invention can begin to detect the preliminary activities of user (close to navigation before user's practical operation guider
User's palm of device), and start touch-control processing unit in real time, for example heighten the sampling frequency of detection signal.Guider
Touch-control processing function and coordinate detecting function be just waken up from park mode before practical operation, therefore user without waiting for
One section delay time difference, can be immediately input into while guider is touched effective touch command and by change coordinate come
Produce effective control instruction.Compare prior art, the constituent components of guider of the present invention are simple, it is cheap for manufacturing cost and
Assembling is easy, can detecting real-time effective instruction is rapidly produced to the operation behavior of user, therefore navigation can be greatly improved and filled
The ease of use put, it helps the market competitiveness of enhanced products.
Brief description of the drawings
Fig. 1 is the functional block diagram of the guider of the embodiment of the present invention.
Fig. 2 is the schematic appearance of the guider of the embodiment of the present invention.
Fig. 3 is the operating process for judging whether startup guider using the position for detecting object of the embodiment of the present invention
Figure.
Fig. 4 is the light reflected signal strength value of the embodiment of the present invention and the comparing figure of default value.
Wherein, description of reference numerals is as follows：
10 guiders
12 housings
14 optical touch control plates
16 touch-control processing units
18 optical sensing units
20 controllers
22 coordinate detecting units
24 switches
A objects
S1 light detection signals
S2 light reflected signals
I intensity levels
T default values
The threshold values of T1 first
The threshold values of T2 second
Step 300,302,304,306,308,310
Specific embodiment
It is the functional block diagram of the guider 10 of the embodiment of the present invention to refer to Fig. 1 and Fig. 2, Fig. 1, and Fig. 2 is the present invention
The schematic appearance of the guider 10 of embodiment.In general, guider 10 can be optical mouse, and user is covered with palm
Guider 10 is covered and promotes to produce the changes in coordinates of guider 10.Guider 10 can also for optical touch control type keyboard,
Optical touch control type trace ball etc., all devices for carrying out touch command detecting using optical touch control technology come under of the invention
The design category of guider 10, no longer chats bright respectively herein.Because the input interface of guider 10 is that optical touch control type is defeated
Incoming interface, therefore the present invention can detect the distance change of user's palm Relative Navigation device 10, in user's palm close to navigation
Device 10 but when not yet touching guider 10, automatically triggers the operating function of guider 10, implies that and is cut from park mode
Mode of operation is changed to, to effectively improve ease of use.
As shown in Figures 1 and 2, guider 10 includes housing 12, optical touch control plate 14, touch-control processing unit 16, light
Learn sensing unit 18 and controller 20.Optical touch control plate 14 is arranged on the upper surface in the outside of housing 12, and user can pass through
Click on optical touch control plate 14 or be input into control instruction in the surface movement of optical touch control plate 14.Touch-control processing unit 16 sets
Optical touch control plate 14 is put in the housing 12 and electrically connects, for analyzing and recognizing user on optical touch control plate 14
Operation behavior.Optical sensing unit 18 is arranged on inside housing 12.Optical sensing unit 18 output light detection signal S1 is detected
Object A outside housing 12, such as user's palm or finger, and the light reflection letter reflected from object A is received simultaneously
Number S2.
It is noted that the light detection signal S1 and light reflected signal S2 that optical sensing unit 18 exported and received wears
Transmissive optical formula Trackpad 14, implies that optical touch control plate 14 is correspondingly by red when optical sensing unit 18 exports infrared signal
Outside line light transmissive material is constituted, right not limited to this.The electrical connection touch-control of controller 20 processing unit 16 and optical sensing unit 18.Control
Device processed 20 can read and analyze the light reflected signal S2 of optical sensing unit 18 to obtain its intensity level, and be sentenced according to intensity level
The position of disconnected object A opposing optical formulas Trackpad 14 and distance, dormancy is entered to decide whether to switching touch-control processing unit 16
Pattern or mode of operation.Optical sensing unit 18 can be independently of another electronic building brick of optical touch control plate 14, or
Optical sensing unit 18 may be integrally incorporated to optical touch control plate 14 and form light detecting module, and its application is described before being not limited to, end
Depending on design requirement.
As shown in Figures 1 and 2, guider 10 is further alternative includes coordinate detecting unit 22, electrical connection control
Device 20.Coordinate detecting unit 22 is used for detecting changes in coordinates of the guider 10 in moving process.In this embodiment, work as optics
When sensing unit 18 detects object A close to optical touch control plate 14, represent that user is intended to prepare to use guider 10, control
The touch-control processing unit 16 that will automatically switch of device 20 enters mode of operation.And further detect object in optical sensing unit 18
After A has touched optical touch control plate 14, represent that user starts operation guider 10, therefore controller 20 can detect coordinate
Unit 22 switches into mode of operation to detect the change in displacement of guider 10.Coordinate detecting unit 22 can be detectd for optical profile type
Survey unit or roller type detecting unit.
Furthermore, guider 10 is further alternative to include switch 24, electrically connects controller 20.Switch 24 can be soft
Part, firmware or example, in hardware, opening or closed mode are preset into by user.The state of switch 24 can determine navigation
Whether the coordinate detecting unit 22 of device 10 will enter mode of operation and correspondingly synchronous averaging with touch-control processing unit 16.Lift
For example, when switch 24 is preset in the opening, after the wake-up touch-control of controller 20 processing unit 16 enters mode of operation, detect
It is the opening to measure switch 24, you can after coordinate detecting unit 22 also is switched into mode of operation automatically.If conversely,
Switch 24 is preset in the closed mode, and after the wake-up touch-control of controller 20 processing unit 16 enters mode of operation, detecting discovery is opened
It is to be in the closed mode to close 24, then controller 20 does not switch the pattern of coordinate detecting unit 22, but when optical sensing
The detecting of unit 18 object A touches optical touch control plate 14, just switches coordinate detecting unit 22 and enters mode of operation.Or separately may be used
By common mode, after controller 20 judges guider 10 by movement, that is, automatically waken up coordinate detecting unit 22 and enter work
Operation mode.
Fig. 3 is referred to, Fig. 3 judges whether that starting navigation fills using the position for detecting object A for the embodiment of the present invention
Put 10 operational flowchart.Operating method shown in Fig. 3 is useful in the guider 10 shown in Fig. 1 and Fig. 2.First, step is performed
Rapid 300, controller 20 drives the output light detection signal S1 of optical sensing unit 18, and light detection signal S1 is via optical touch control plate
14 appear housing 12.If not having thing on housing 12, light detection signal S1 straight lines are outwards projected, and its intensity level increases with distance
And decay；If the top of housing 12 has object A, light detection signal S1 is irradiated to object A and can produce light reflected signal S2.Then,
Perform step 302 and step 304, optical sensing unit 18 receives light reflected signal S2, controller 20 is from optical sensing unit 18
Light reflected signal S2 is read, and analyzes light reflected signal S2 to obtain intensity level.The Strength Changes of optical signal correspond to object A phases
To the distance of optical touch control plate 14, the intensity level of such as light reflected signal S2 is bigger, and object A is from optical touch control plate 14
It is closer to；The intensity level of light reflected signal S2 is smaller, object A from optical touch control plate 14 farther out.
Using the signal intensity of light reflected signal S2, controller 20 can determine whether whether object A is located at optical touch control plate 14
Top.When object A is not in the top of optical touch control plate 14, controller 20 by touch-control processing unit 16 maintain park mode,
Or park mode is switched to by mode of operation.When controller 20 judges object A in optical touch control 14 top of plate, object A
It is probably vacantly to be located at the top of optical touch control plate 14 or actually touch the surface of optical touch control plate 14.Therefore
Then step 306 is performed, controller 20 compares intensity level and default value, and judges object A opposing optical formulas according to comparative result
The position of Trackpad 14.
Fig. 4 is referred to, Fig. 4 is the intensity level I of the embodiment of the present invention and the comparing figure of implied value T.Intensity level I is that optics is passed
The largest light intensity of the light reflected signal S2 that sense unit 18 is received.Implied value T can be stored in the built-in mnemon of controller 20；Or
Implied value T is separately stored in memory external unit, connects to memory external unit by controller 20 to read implied value T.In this hair
In bright preferred embodiment, implied value T may include the first threshold value T1 and the second threshold value T2, and the second threshold value T2 is more than the
One threshold value T1.As shown in figure 4, when intensity level I is less than implied value T (both less than the second threshold value T2, again smaller than the first door
Value T1), the light intensity of light reflected signal S2 is faint, represents that object A is still remote apart from optical touch control plate 14, therefore performs step 308, control
Device processed 20 judges object A not in the top of optical touch control plate 14, and touch-control processing unit 16 is maintained into park mode.
On the other hand, if intensity level I is more than implied value T, controller 20 performs step 310, judges that object A is located at optical profile type
The top of Trackpad 14, therefore changeable touch-control processing unit 16 enters mode of operation.According to object A opposing optical formulas Trackpad 14
Distance, the present invention can be further subdivided into and touch-control processing unit 16 is activated individually, or alternative is selected and start simultaneously touch-control treatment list
Unit 16 and coordinate detecting unit 22.For example, when intensity level I is more than the first threshold value T1 but less than the second threshold value T2,
Controller 20 judges that object A is close but does not completely attach to optical touch control plate 14, implies that object A is vacantly located at optical profile type
The top of Trackpad 14, the now switching of controller 20 touch-control processing unit 16 into mode of operation to prepare to receive touch command,
But coordinate detecting unit 22 can temporarily be in park mode.When intensity level I is further improved and is more than the second threshold value T2, control
Device processed 20 judges that object A has touched optical touch control plate 14, therefore controller 20 can simultaneously by touch-control processing unit 16 and coordinate
Detecting unit 22 switches to mode of operation, to receive touch command and detecting changes in coordinates respectively.
In addition, controller 20 judges that object A is hanging behind the top of optical touch control plate 14, and also alternative inspection is opened
24 state is closed to determine the switch mode of coordinate detecting unit 22.When object A is hanging in the top of optical touch control plate 14, and
When switch 24 is closed mode, controller 20 does not switch coordinate detecting unit 22, and sustainable utilization optical sensing unit 18 is analyzed
The intensity level I of light reflected signal S2, work is entered until intensity level I just switches coordinate detecting unit 22 more than the second threshold value T2
Pattern.If object A is hanging in the top of optical touch control plate 14, and it is opening to switch 24, even if object A is not touched actually
Optical touch control plate 14 is touched, coordinate detecting unit 22 still automatically can be switched to mode of operation by controller 20 from park mode,
To detect the changes in coordinates of guider 10.
Guider of the invention detects the position of object (user's palm or finger), and root using optical sensing unit
Switch the use pattern of each component of guider according to the relative change of position, to reach energy saving and operation smoothly mesh
's.When optical sensing unit detecting is less than object, the touch-control processing unit and coordinate detecting unit of guider are all changeable to be
Park mode is saving electric power.Optical touch control plate is touched when optical sensing unit detects object, at the touch-control of guider
Reason unit and coordinate detecting unit all switch to mode of operation, the operation behavior that guider starts to detect user to become with coordinate
Change.Vacantly it is located on optical touch control plate when optical sensing unit detects object, but not yet actual contact optical formula touch-control
During plate, touch-control processing unit is first activated from park mode and is switched to mode of operation, with the follow-up gesture of detecting real-time user
Action；Coordinate detecting unit can be then decided whether to as touch-control processing unit is by simultaneously by judging the preset state of switch
Start, or coordinate detecting unit can also object is actual touch optical touch control plate after be just activated, to reach power saving
Purpose.
So, the present invention can begin to detect the preliminary activities of user before user's practical operation guider
(close to user's palm of guider), and start touch-control processing unit in real time, for example heighten the sampling frequency of detection signal.
The touch-control processing function and coordinate detecting function of guider are just waken up before practical operation from park mode, therefore user
Without waiting for one section of time difference of delay, effective touch command can be immediately input into while guider is touched and by changing
Become coordinate to produce effective control instruction.Prior art is compared, the constituent components of guider of the present invention are simple, manufacturing cost
It is cheap and assemble it is easy, can detecting real-time effective instruction is rapidly produced to the operation behavior of user, therefore can significantly carry
The ease of use of guider high, it helps the market competitiveness of enhanced products.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (21)
1. a kind of to detect method of the object's position to start guider, the guider has housing, optical touch control plate
With touch-control processing unit, the optical touch control plate is arranged at the upper surface of the housing, and the touch-control processing unit is arranged at
The housing is interior and electrically connects the optical touch control plate, it is characterised in that methods described includes：
Output light detection signal；
Receive the light reflected signal from the object；
The smooth reflected signal is analyzed to obtain intensity level；
Judge whether the object is located at optical touch control plate top according to the intensity level；And
When the object is located at optical touch control plate top, switches the touch-control processing unit and enter mode of operation.
2. the method for claim 1, it is characterised in that the object is located at optical touch control plate top includes institute
Object is stated vacantly to be located on the optical touch control plate, and the object is actual touches the optical touch control plate.
3. the method for claim 1, it is characterised in that when the object is not above the optical touch control plate, institute
Touch-control processing unit is stated for park mode.
4. the method for claim 1, it is characterised in that judge whether the object is located on the optical touch control plate
Side includes：
Compare the intensity level and default value；When
When the intensity level is more than the default value, position of the object relative to the optical touch control plate is judged.
5. method as claimed in claim 4, it is characterised in that the default value includes the first threshold value and the second threshold value,
Second threshold value is more than first threshold value, and the intensity level is more than first threshold value but less than described second
During bank value, the object is vacantly located on the optical touch control plate.
6. method as claimed in claim 5, it is characterised in that described right when the intensity level is more than second threshold value
As actually touching the optical touch control plate.
7. method as claimed in claim 4, it is characterised in that when the intensity level is less than the default value, the object
Not above the optical touch control plate.
8. the method for claim 1, it is characterised in that methods described is further included：
When the object touches the optical touch control plate, the coordinate detecting unit for switching the guider enters work
Pattern.
9. the method for claim 1, it is characterised in that methods described is further included：
Check the switch of the guider；And
According to the state of the switch, decide whether that the coordinate detecting unit for switching the guider enters mode of operation.
10. method as claimed in claim 9, it is characterised in that when the switch is opening, the coordinate detecting unit
Into the mode of operation, when the switch is closed mode, the coordinate detecting unit does not enter the mode of operation.
A kind of 11. detecting object's positions are with the guider of start-up operation function, it is characterised in that
The guider includes：
Housing；
Optical touch control plate, is arranged on the upper surface of the housing；
Touch-control processing unit, is arranged in the housing and electrically connects the optical touch control plate；
Optical sensing unit, is arranged in the housing, and the optical sensing unit output light detection signal is detecting positioned at institute
The object outside housing is stated, and receives the light reflected signal from the object；And
Controller, electrically connects the touch-control processing unit and the optical sensing unit, and the controller analyzes the light reflection
Signal judges whether the object is located above the optical touch control plate to obtain intensity level according to the intensity level, and
When the object is located at optical touch control plate top, switches the touch-control processing unit and enter mode of operation.
12. guiders as claimed in claim 11, it is characterised in that the controller is determined whether according to detecting result
Described pair likes vacantly on the optical touch control plate, or the object is actual to touch the optical touch control
Plate.
13. guiders as claimed in claim 11, it is characterised in that the controller judges the object not in the light
During formula Trackpad top, switch the touch-control processing unit and enter park mode.
14. guiders as claimed in claim 11, it is characterised in that the controller intensity level and acquiescence
Value, and when the intensity level is more than the default value, judge the position of the relatively described optical touch control plate of the object.
15. guiders as claimed in claim 14, it is characterised in that the default value includes the first threshold value and second
Bank value, second threshold value is more than first threshold value, and the intensity level is more than first threshold value but less than described
During the second threshold value, the controller judges that the object is vacantly located on the optical touch control plate.
16. guiders as claimed in claim 15, it is characterised in that when the intensity level is more than second threshold value,
The controller judges that the object is actual and touches the optical touch control plate.
17. guiders as claimed in claim 14, it is characterised in that described when the intensity level is less than the default value
Controller judges the object not above the optical touch control plate.
18. guiders as claimed in claim 11, it is characterised in that the guider is further included：
Coordinate detecting unit, electrically connects the controller, and the coordinate detecting unit is used for detecting the coordinate of the guider.
19. guiders as claimed in claim 18, it is characterised in that the controller touches institute judging the object
When stating optical touch control plate, switch the coordinate detecting unit and enter mode of operation.
20. guiders as claimed in claim 18, it is characterised in that the guider further includes switch, is electrically connected
The controller is connect, the controller enters work according to whether the Determines of the switch switch the coordinate detecting unit
Pattern.
21. guiders as claimed in claim 20, it is characterised in that when the switch is opening, the controller
Switch the coordinate detecting unit into the mode of operation, when the switch is closed mode, the controller does not switch institute
State coordinate detecting unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310294014.4A CN104281331B (en) | 2013-07-12 | 2013-07-12 | Guider and its startup method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310294014.4A CN104281331B (en) | 2013-07-12 | 2013-07-12 | Guider and its startup method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104281331A CN104281331A (en) | 2015-01-14 |
| CN104281331B true CN104281331B (en) | 2017-07-07 |
Family
ID=52256273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310294014.4A Active CN104281331B (en) | 2013-07-12 | 2013-07-12 | Guider and its startup method |
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| Country | Link |
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| CN (1) | CN104281331B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831924A (en) * | 2017-11-28 | 2018-03-23 | 信利光电股份有限公司 | A kind of mouse device |
| CN108874239B (en) * | 2018-05-24 | 2021-09-17 | 信利光电股份有限公司 | Touch control method, touch display module, storage medium and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6362468B1 (en) * | 1999-06-10 | 2002-03-26 | Saeilo Japan, Inc. | Optical unit for detecting object and coordinate input apparatus using same |
| CN101470182A (en) * | 2007-12-24 | 2009-07-01 | 卡特彼勒科技新加坡有限公司 | System and method for electricity-saving management of mobile entity communication |
| CN101668351A (en) * | 2008-09-04 | 2010-03-10 | 宏达国际电子股份有限公司 | Portable electronic device and mode switching method thereof |
-
2013
- 2013-07-12 CN CN201310294014.4A patent/CN104281331B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6362468B1 (en) * | 1999-06-10 | 2002-03-26 | Saeilo Japan, Inc. | Optical unit for detecting object and coordinate input apparatus using same |
| CN101470182A (en) * | 2007-12-24 | 2009-07-01 | 卡特彼勒科技新加坡有限公司 | System and method for electricity-saving management of mobile entity communication |
| CN101668351A (en) * | 2008-09-04 | 2010-03-10 | 宏达国际电子股份有限公司 | Portable electronic device and mode switching method thereof |
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| CN104281331A (en) | 2015-01-14 |
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