CN103792990A - Communication electronic device bearable portable electronic input device and system thereof - Google Patents

Communication electronic device bearable portable electronic input device and system thereof Download PDF

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Publication number
CN103792990A
CN103792990A CN201210417821.6A CN201210417821A CN103792990A CN 103792990 A CN103792990 A CN 103792990A CN 201210417821 A CN201210417821 A CN 201210417821A CN 103792990 A CN103792990 A CN 103792990A
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China
Prior art keywords
image sensing
processor
image
sensing module
supporting part
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CN201210417821.6A
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Chinese (zh)
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CN103792990B (en
Inventor
林卓毅
花玉霜
唐佳蕾
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Pixart Imaging Inc
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林卓毅
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Abstract

This invention discloses a communication electronic device bearable portable electronic input device and a system thereof. A bearing portion of the communication electronic device bearable portable electronic input device is provided with an image sensing module; a touch area is defined by the sensing range of the image sensing module; a communication interface is arranged in the bearing portion so as to be in communication with a portable communication electronic device; a function design for an object to operate is configured in the touch area selectively; the function design can be formed on an operation surface or generated by a light emitting device through projection; a processor is in electrical coupling connection with the image sensing module; when the function design is operated by the object, the position information of the object is calculated by the processor according to an object image which is sensed by the image sensing module and accordingly the position information of the object can be output through the communication interface.

Description

Can carry portable electronic input media and the system thereof of communication electronic device
Technical field
The present invention relates to a kind of input media, particularly a kind of a kind of input media forming on the supporting part that can carry a portable communications electronic installation that image sensor is arranged on.
Background technology
Along with scientific and technological progress, because have operation feature simple and easy and easy to carry, flat computer or intelligent mobile phone replace general mobile computer gradually, become the electronic product that user carries.
Flat computer or intelligent mobile phone do not have keyboard-type load module conventionally, using touch control screen as basic input media.The touch control screen that it has allows user to carry out operation by pointer or digital pen.Most flat computer or intelligent mobile phones are all supported finger manipulation, use finger touch, write, image zooming and pattern.
Certainly, except pointer, user can also operate by the dummy keyboard on built-in handwriting identification, screen, speech recognition or a real keyboard.
But the typing speed of the dummy keyboard of current flat computer or intelligent mobile phone can not replace conventional keyboard completely, in addition, touch input interface is also not suitable for user and carries out long operation.Therefore many users are still used to beat keyboard as best input interface, an external connected input device that is therefore applicable to flat computer or intelligent mobile phone with application give birth to, to provide user to carry out the quick input of word, instruction.
Summary of the invention
The object of the invention is to disclose a kind of portable electronic input media that carries communication electronic device, in order to the external connected input device as portable electronic devices.
According to the portable electronic input media of carried of the communication electronic device of one embodiment of the invention, include a supporting part, a communication interface, one first image sensor, one second image sensor, an operating surface and a processor.Wherein the sensing range of the first image sensor and the second image sensor is for partly overlapping, to define a touch area; On operating surface, be printed with a function pattern, for an Object Operations, this operating surface is disposed in this touch area; Processor respectively with this first image sensor, this second image sensor and this communication interface electric property coupling, in the time of this function pattern on this operating surface of this Object Operations, the image of this object that this processor senses according to those image sensor to be to calculate a positional information of this object, and exports this positional information by this communication interface.
According to the portable electronic input media of carried of the communication electronic device of one embodiment of the invention, include a supporting part, a communication interface, one first image sensor, one second image sensor, a light-emitting device and a processor.Wherein the sensing range of the first image sensor and the second image sensor is for partly overlapping, to define a touch area; Light-emitting device in order to project a function pattern on the corresponding workplace in this touch area; Processor respectively with this first image sensor, this second image sensor and this communication interface electric property coupling, in the time of this function pattern on this workplace of Object Operations, the image of this object that this processor senses according to those image sensor to be to calculate one of this object, and exports this positional information by this communication interface.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the system architecture schematic diagram of the disclosed portable electronic input media that carries communication electronic device of the present invention;
Fig. 2 is the system architecture schematic diagram of the disclosed portable electronic input media that carries communication electronic device of the present invention;
Fig. 3 is the system architecture schematic diagram of another embodiment of the disclosed portable electronic input media that carries communication electronic device of the present invention;
Fig. 4 is the system architecture schematic diagram of another embodiment of the disclosed portable electronic input media that carries communication electronic device of the present invention;
Fig. 5 is the system architecture schematic diagram of another embodiment of the disclosed portable electronic input media that carries communication electronic device of the present invention;
Fig. 6 is the schematic diagram of the disclosed portable electronic input media that carries communication electronic device of the present invention;
Fig. 7 is another schematic diagram of the disclosed portable electronic input media that carries communication electronic device of the present invention;
Fig. 8 is the key diagram that input media carries out object's position detection;
Fig. 9 is that processor receives the image data of two image sensor and the schematic diagram of subsequent treatment;
Figure 10 is object's position and the corresponding angle figure in the image that senses of image sensor;
Figure 11 illustrates another set-up mode of the internals of image sensing module;
Figure 12 illustrates the account form in the visual field farthest.
Wherein, Reference numeral
100 portable communications electronic installations
110 communication interfaces
200 portable electronic input medias
201 portable electronic input medias
210 supporting parts
211 grooves
212 supporting parts
220 communication interfaces
230 first image sensing modules
2301A bottom surface
231 first image sensing modules
232 first image sensor
232A image capture face
234 infrared light filtering apparatus
2361 optical mirror slips
2362 optical mirror slips
236 optical mirror slip groups
238 infrared light emission devices
239 optical mirror slips
240 second image sensing modules
241 second image sensing modules
242 second image sensor
244 infrared light filtering apparatus
2461 optical mirror slips
2462 optical mirror slips
246 optical mirror slip groups
248 infrared light emission devices
249 optical mirror slips
250 operating surfaces
251 function patterns
260 processors
270 light-emitting devices
271 function patterns
300 portable electronic input medias
310 supporting parts
330 first image sensing modules
340 second image sensing modules
350 operating surfaces
351 function patterns
370 light-emitting devices
371 function patterns
502 objects
582 dotted lines
584 dotted lines
586 dotted lines
590 touch areas
802 real work surfaces
902 sensing routes
904 sensing routes
1010 images
1012 clear zones
1014 characteristics
1016 characteristics
1018 characteristics
1018A angle 45 is spent
1018B angle 30 is spent
1018C angle 75 is spent
1020 images
1022 clear zones
1024 characteristics
1026 characteristics
1028 characteristics
Embodiment
In embodiment, describe below detailed features of the present invention and advantage in detail, its content is enough to make any 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 scope and accompanying drawing, any those skilled in the art can understand object 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 and Fig. 2, carry the system architecture schematic diagram of the portable electronic input media of communication electronic device for the present invention is disclosed.Schematic diagram when Fig. 1 illustrates portable communications electronic installation and is not installed in the disclosed input media of the present invention, and Fig. 2 illustrates the schematic diagram of portable communications electronic device assembling in the time of the disclosed input media of the present invention.Disclosed input media is to apply to portable communications electronic installation 100, does not particularly configure the portable communications electronic installation of input keyboard, for example flat computer or intelligent mobile phone.Certainly general computing machine or general mobile phone also can use the disclosed input media of the present invention to use as expanding.
Portable electronic input media 200 comprises that a supporting part 210, a communication connect 220, one first image sensing module 230, one second image sensing module 240, an operating surface 250 and a processor 260.
Supporting part 210 is to be designed to can carry, hold or couple portable communications electronic installation 100, although illustrated a groove 211 in order to represent supporting part 210 firmly to fix portable communications electronic installation 100 in figure, but it is only in order to illustrate, not in order to limit the enforcement aspect of supporting part 210.
In supporting part 210, be provided with a communication and connect 220, this communication connects 220 and can connect 110 with the communication in portable communications electronic installation 100 and be connected, and makes supporting part 210 and portable communications electronic installation 100 carry out communication.Communication interface 220 is wire communication interfaces with communication interface 110, for example USB (universal serial bus) (Universal Series Bus, USB) interface, but not as limit, its specification can be USB 1.0, USB 1.1, USB 2.0 or USB 3.0 or more than.In another embodiment, in addition, an also wireless communication interface of communication interface 220 and communication interface 110, for example bluetooth (Blue Tooth) wireless transmission interface, radio universal serial bus (Wireless Universal Series Bus, Wireless USB) interface or super wideband (Ultra Wide Band, UWB) wave point, but not as limit.Even, communication interface 220 can adopt multiple wire communication interface and multiple wireless telecommunications interface with communication interface 110.
In supporting part 210, be provided with the first image sensing module 230 and the second image sensing module 240.The first image sensing module 230 has one first sensing range, the second image sensing module 240 also has one second sensing range, wherein the second sensing range of the first sensing range of the first image sensing module 230 and the second image sensing module 240 is for partly overlapping, and this partly overlapping zone definitions is a touch area.Although do not illustrate in figure, supporting part 210 has one first transmission region corresponding to the position of the first image sensing module 230, there is one second transmission region corresponding to the position of the second image sensing module 240, so that this makes the first image sensing module 230 and the second image sensing module 240 respectively by the image of this first transmission region and this second transmission region sensed object.
Portable electronic input media 200 also comprises an operating surface 250, and this operating surface 250 is disposed in this touch area.On operating surface 250, have a function pattern 251, to utilize the virtual user's input interface of this function pattern, function pattern is in order to supply an Object Operations.Object is generally user's finger or lip pencil thing.In one embodiment, function pattern 251 is to utilize mode of printing to be formed on operating surface 250.In another embodiment, function pattern 251 is can first be formed on the sticking object of a tool, then this object is adhered on operating surface 250 with bonding method; But be not limited with this two embodiment.In the embodiment illustrating in the drawings, function pattern 251 is the keyboards for an employing QWERTZ configuration.Operating surface 250 is disposed at (touch area 590 as shown in Figure 6) in touch area, and operating surface 250 can be designed to be connected with supporting part 210, also can be designed to separate with supporting part 210.In other embodiment, also can be by other keyboard configuration.In other embodiment, function pattern can be also a mouse, a numeric keypad, a Trackpad (Touch Pad) or a change-over switch.
One processor 260 is also set in supporting part, respectively with the first image sensing module 230, this second image sensing module 240 electrically and communication interface 220 electric property couplings, in the time of the function pattern 251 of Object Operations on operating surface 250, the image of the object that processor 260 senses according to the first image sensing modules 230 and this second image sensing module 240 is with a positional information of calculating object, and gives portable communications electronic installation 100 by positional information to the communication interface 110 of communication interface 220 object outputs.
Please refer to Fig. 3, is the system architecture schematic diagram of the portable electronic input media of carried of the communication electronic device of disclosed another embodiment of the present invention.Portable electronic input media 201 comprises a supporting part 212, a communication interface, one first image sensing module 231, one second image sensing module 241, a light-emitting device 270 and a processor.The communication interface of this embodiment and processor and previous embodiment are similar, in figure because portable electronic input media 201 with 100 combinations of portable communications electronic installation, be not therefore illustrated in figure.
The function of supporting part 212, communication interface, the first image sensing module 231 and the second image sensing module 241 and running and aforesaid embodiment are similar, do not repeat them here.
Light-emitting device 270 is arranged in supporting part 212, and light-emitting device 270 in order to project a function pattern 271 on the corresponding workplace in touch area; The light source of light-emitting device 270 can be visible LASER Light Source or visible infrared light supply.Processor respectively with the first image sensing module 231, the second image sensing module 241 and communication interface 220 electric property couplings.In the present embodiment, in the time of the function pattern 271 of Object Operations on workplace, the image of the object that processor 260 senses according to the first image sensing modules 231 and the second image sensing module 241 is with a positional information of calculating object, and positional information by communication interface object output to portable communications to the communication interface of electronic installation 100 to portable communications to electronic installation 100.
Figure is the system architecture schematic diagram of another embodiment of the disclosed portable electronic input media that carries communication electronic device of the present invention.
Portable electronic input media 300 comprises a supporting part 310, a communication interface (not shown), one first image sensing module 330, one second image sensing module 340, an operating surface 350 and a processor (not shown).Processor and the previous embodiment of this embodiment are similar, in figure because portable electronic input media 300 with 100 combinations of portable communications electronic installation, be not therefore illustrated in figure.Operating surface 350 has function pattern 351.Wherein, except the first image sensing module 330 and the second image sensing module 340, most member and previous embodiment are similar, do not repeat them here.In figure, the first image sensing module 330 and the second image sensing module 340 are to be arranged on portable communications electronic installation 100.
Fig. 5 is the system architecture schematic diagram of another embodiment of the disclosed portable electronic input media of the present invention.The embodiment of most member and Fig. 5 is similar, and difference is to carry out projecting function pattern 371 with light-emitting device 370; The light source of light-emitting device 370 can be visible LASER Light Source or visible infrared light supply.
In the foregoing embodiments, the processor in portable electronic input media calculates after this positional information of this object, and processor produces a control signal more according to this.Therefore, in one embodiment, a configurable vibrating elements also in supporting part, this vibrating elements is responded this control signal and is vibrated.In another embodiment, a configurable sounding component also in supporting part, is arranged at this one-tenth and carries in portion, and this generating device is responded this control signal and produced a sound.In other words, by vibrating elements or sound components, in the time that Object Operations is on operating surface, supporting part can vibrate or sound, and makes user have the sensation of similar practical operation keyboard.
And for fear of vibrating improperly or the signal of sounding, the image of this object that processor 260 also senses according to those image sensing modules is to produce a judgement signal, this judges that signal is in order to represent whether this object is positioned at touch area, also be, in the time that object is positioned at this touch area, processor can produce a control signal.When object is not during in touch area, just do not produce control signal.
Below describe the thin portion composition of image sensing module used in the present invention and the method for image sensing in detail.Certainly following content is the use for image sensing module is exemplarily described and the image that how to sense object, not in order to limit image sensing module and the operating method thereof of the actual enforcement of the present invention.Anyly can realize image sensing module of the present invention and method all can be applicable to the disclosed portable electronic input media of the present invention.In addition, below for convenience, be assembly using the embodiment of Fig. 1 as explanation, the embodiment of Fig. 2 to Fig. 5 can apply equally.
With reference to figure 6 and Fig. 7.Fig. 6 be portable electronic input media schematic diagram, Fig. 7 is another schematic diagram of the first image sensing module 230.And symbol 502 is expressed as an object, for example user's finger or lip pencil thing.In this embodiment, the first image sensing module 230 includes the first image sensor 232, can only allow the infrared light filtering apparatus 234 that infrared light passes through, optical mirror slip group 236, infrared light emission device 238 and the optical mirror slip 239 being made up of optical mirror slip 2361 and 2362.Wherein, the first image sensor 232 can be charge coupled cell (charge-coupled device, CCD) or CMOS Image Sensor (CMOS image sensor).And the external form of the first image sensor 232 can be matrix form (Array) or linear forms (Linear).In addition, in this embodiment, the visual angle of the first image sensor 232 is about 30 to 45 degree, therefore the first image sensing module 230 must adopt optical mirror slip group 236 to be increased to and be at least 90 degree in the visual angle of the first image sensor 232, so that the region that the angle that makes the sensing range of the first image sensing module 230 be at least dotted line 582 and 584 is contained.And in optical mirror slip group 236, each optical mirror slip can increase visual angle at least 30 degree of the first image sensor 232.Special instruction, although embodiment uses optical mirror slip 2361 and 2362, still can change according to the characteristic of the first image sensor 232 quantity of eyeglass, is therefore not particularly limited and will uses two arrangement of mirrors sheets.
As for infrared light emission device 238, its infrared light of launching can be sequentially irradiates by transmission region in optical mirror slip 239 and load bearing seat the region that the angle of dotted line 582 and 584 is contained, comprise object 502, make the first image sensor 232 sequentially to obtain the image after object 502 reflects infrared light by infrared light filtering apparatus 234, optical mirror slip group 236 with transmission region.And this means, the image in the region that the shape of transmission region and the angle that size must be designed to allow the first image sensor 232 sense dotted line 582 and 584 are contained, while transmission region can not go to stop that the direct of travel of the infrared light that infrared light emission device 238 launches by optical mirror slip 239 makes infrared light cannot be irradiated to any position in the region that above-mentioned angle contains.
Similarly, the second image sensing module 240 includes the second image sensor 242, can only allow the infrared light filtering apparatus 244 that infrared light passes through, optical mirror slip group 246, infrared light emission device 248 and the optical mirror slip 249 being made up of optical mirror slip 2461 and 2462.In this embodiment, the visual angle of the second image sensor 242 is about 30 ~ 45 degree, therefore the second image sensing module 240 must adopt optical mirror slip group 246 to be increased to and be at least 90 degree in the visual angle of the second image sensor 242, so that the region that the angle that makes the sensing range of the second image sensing module 240 be at least dotted line 582 and 586 is contained.And in optical mirror slip group 246, each optical mirror slip can increase visual angle at least 30 degree of the second image sensor 242.Special instruction, although embodiment uses optical mirror slip 2461 and 2462, still can change according to the characteristic of the second image sensor 242 quantity of eyeglass, is therefore not particularly limited and will uses two arrangement of mirrors sheets.
As for infrared light emission device 248, the transmission region that its infrared light of launching can be sequentially do by optical mirror slip 249 and carrying irradiates the region that the angle of dotted line 582 and 586 is contained, comprise object 502, make the second image sensor 242 sequentially to obtain the image after object 502 reflects infrared light by infrared light filtering apparatus 244, optical mirror slip group 246 with transmission region.And this means, the image in the region that the shape of transmission region and the angle that size must be designed to allow the second image sensor 242 sense dotted line 582 and 586 are contained, while transmission region can not go to stop that the direct of travel of the infrared light that infrared light emission device 248 launches by optical mirror slip 249 makes infrared light cannot be irradiated to any position in the region that above-mentioned angle contains.
In another embodiment, aforesaid infrared light emission device can adopt at least one infrared light light emitting diode (IR LED) to realize; And aforesaid infrared light filtering apparatus all can adopt an infrared light optical filter (IR-pass filter) to realize.The infrared light wavelength that infrared light light emitting diode sends is about 800nm ~ 960nm, is generally to use the infrared light light emitting diode that infrared light wavelength is 850nm.In addition,, because the visual angle of general image sensor is 30 ~ 45 degree, therefore the optical mirror slip number in optical mirror slip group does suitable design when the visual angle of visible image sensor and visual angle that each optical mirror slip can increase.
In another embodiment, at least one optical mirror slip in aforesaid each optical mirror slip group can interlock and is coated with the magnesium oxide (MgO) of multilayer and the titania (TiO of multilayer 2) or silicon dioxide (SiO 2), so that at least one optical mirror slip produces the effect that is similar to infrared light filtering apparatus.Thus, original infrared light filtering apparatus just can be omitted.It is worth mentioning that, original infrared light filtering apparatus is exactly so-called photoresistance (Photo Resistor), and its composition has comprised organic compound, macromolecule (Polymer) and plastic cement (Plastic).
In another embodiment, each infrared light emission device all can one laser beam emitting device replace, and each infrared light filtering apparatus all can be omitted.In addition, each optical mirror slip in each optical mirror slip group does not need to be coated with magnesium oxide (MgO), titania (TiO yet 2) and silicon dioxide (SiO 2).So should be noted that, each is arranged on the pointolite that the optical mirror slip before laser beam emitting device must send corresponding laser beam emitting device and converts line source to, with make the corresponding laser light energy that laser beam emitting device was sent at least containing lid to touch area.Thus, the laser that each laser beam emitting device sends just can be irradiated to the object that is positioned at touch area, and each image sensor also can obtain the image of this object reflection laser.It is worth mentioning that, each laser beam emitting device all can adopt at least one lasing fluorescence diode (laser diode) to realize.
In another embodiment, the surface of aforesaid object 502 also can additionally adopt reflective material to improve reflecting effect.
In another embodiment, if object to be measured itself can be luminous, for example, can send infrared light or laser, just do not need so to adopt infrared light emission device or laser beam emitting device to carry out irradiation object.Certainly the optical mirror slip and other related elements that, are originally arranged on before infrared light emission device or laser beam emitting device also can omit.
Utilize above-mentioned description known, the angle of dotted line 582 and 584 is about 90 degree, and the angle of dotted line 582 and 586 is also about 90 degree.Therefore, dotted line 582 and 584 is the first sensing range of the first image sensing module 230, dotted line 582 and 586 is the second sensing range of the second image sensing module 240, the second sensing range of the first sensing range of the first image sensing module 230 and the second image sensing module 240 is for partly overlapping, and this partly overlapping region is in order to define a touch area 590.In addition, from Fig. 6 and above-mentioned description also, the first image sensor 232 is arranged on dotted line 582 corner crossing with 584, and the second image sensor 242 is arranged on dotted line 582 corner crossing with 586.That is to say, the first image sensor 232 and the second image sensor 242 are arranged on two different corners of touch area 590.
Fig. 7 is the side-looking perspective diagram of the first image sensing module 230, and symbol 802 is expressed as a real work surface.As shown in Figure 7, the image capture face 232A of the second image sensor 232 and the bottom surface 2301A of load bearing seat present predetermined angle theta 1, and this predetermined angle theta 1 is 90 degree.In addition, infrared light filtering apparatus 234, optical mirror slip group 236, infrared light emission device 238 (this figure does not illustrate) also arrange along with this predetermined angle theta 1 with optical mirror slip 239 (this figure does not illustrate).Because this predetermined angle theta 1 is 90 degree, therefore the visual field of the first image sensor 232 (field ofview) is infinity in theory, and the depth of field of the image that the first image sensor 232 senses is infinity in theory.But practical situation is depending on the physical restriction of environment and element itself.In addition,, if the infrared luminous energy that infrared light emission device 238 is launched is contained the visual field of image sensor 232,, in the time that object 502 enters into the range of exposures of infrared light, just can reflects infrared light allow the first image sensor 232 carry out sensing.
Similarly, the second image sensor 242, infrared light filtering apparatus 244, optical mirror slip group 246, infrared light emission device 248 and the optical mirror slip 249 in the second image sensing module 240 also arranges in the mode shown in Fig. 7.
Referring again to Fig. 6.In this embodiment, processor 260 is arranged in load bearing seat 210, and electric property coupling communication interface 220, the first image sensor 232 and the second image sensor 242.Therefore, when object 502 is positioned at touch area 590, the first image sensor 232 and the second image sensor 242 just can capture to obtain the image after object 502 reflects infrared light, and these image datas are directly passed to processor 260, or first image sensor 232 and the second image sensor 242 also image data can be carried out to pre-process and obtain characteristic (for example area of object image of image, length breadth ratio, border, color, the parameters such as brightness) after, pass to again processor 260, to alleviate the burden of processor 260, and processor 260 just calculates the coordinate of object 502 according to the characteristic of these image datas or image.Processor 260, after obtaining the coordinate of object 502, just can export the positional information of object to portable communications electronic installation 100 by communication interface 220, so that portable communications electronic installation 100 further operates according to this positional information.To the adquisitiones of object coordinate be described further again below.
Below the adquisitiones to object location information is described further again.
In Fig. 8, some A is expressed as the setting position of the first image sensor, and some B is expressed as the setting position of the second image sensor.As shown in Figure 8, when object 502 be positioned at touch area 590, the first image sensor 230 just can sense along sensing route 902 object 502, the second image sensor 240 energy sense object 502 along sensing route 904.Therefore, as long as the image that processor 260 can sense according to the first image sensor 230 and the second image sensor 240 is respectively obtained respectively the equation of line of sensing route 902,904, just can further calculate the intersection point of these two sensing routes, and then obtain the positional information of object 502.The positional information here, can utilize the coordinate of object 502 to represent.
To further illustrate image that how processor 260 to sense according to these two image sensor and obtain the equation of line of above-mentioned two sensing routes below.
Fig. 9 is that processor 260 receives the first image sensor and the image data of the second image sensor and the schematic diagram of subsequent treatment.In Fig. 9, symbol 1010 is expressed as the image that the first image sensor senses, symbol 1012 indicated object 502 reflects infrared light and form the higher clear zone of brightness (bright zone) on image 1010, symbol 1014 and 1016 represents respectively left hand edge and the right hand edge in clear zone 1012, and symbol 1018 is expressed as center (center), center of gravity (gravity) or the mean value (mean or average) of clear zone 1012 (being object image). Symbol 1014,1016 and 1018 is to be the characteristic about object 502 in image 1010.
Similarly, symbol 1020 is expressed as the image that the second image sensor senses, symbol 1022 indicated object 502 reflects infrared light and form the higher clear zone of brightness on image 1020, symbol 1024 and 1026 represents respectively left hand edge and the right hand edge in clear zone 1022, and symbol 1028 is expressed as center, center of gravity or the mean value of clear zone 1022 (being object image). Symbol 1024,1026 and 1028 is to be the characteristic about object 502 in image 1020.In addition, other characteristics of object 502, the parameters such as the such as area of object image, length breadth ratio, border, color, brightness, also can utilize processor 260 to process or utilize the first image sensor and the second image sensor to carry out pre-process.And the present embodiment is to utilize processor 260 to try to achieve these characteristics.
Figure 10 is object's position and the corresponding angle figure in the image that senses of the first image sensor.Hold above-mentionedly, processor 260, after receiving image 1010, can calculate center, center of gravity or the mean value in clear zone 1012, and this is the position of object 502 in image 1010.Please refer to Fig. 8, Fig. 9 and Figure 10, for trying to achieve the angle α 1 of dotted line 582 and sensing route 902, image 1010 on average can be divided into some equal portions, for example 90 equal portions.Each equal portions represents that angle 1 spends, and spends so image 1010 right margins are angle 0, spends and left margin is angle 90.When center, center of gravity or the mean value of object drop on image 1010 when interior, can be corresponding go out the angle [alpha] 1 of this position representative.For instance, 1018A represents that angle [alpha] 1 is 45 degree, and 1018B represents that angle [alpha] 1 is 30 degree, and 1018C represents that angle [alpha] 1 is 75 degree.If during without the corresponding angle value of integer just, available interpolation calculation it.And same procedure also can be tried to achieve angle beta 1.
Please refer to Fig. 8, utilize known A point coordinates value and angle [alpha] 1, the oblique formula of utilisation point (point-slope form) is tried to achieve the equation of line of sensing route 902; In like manner, also can utilize B point coordinates value and angle beta 1 to try to achieve the equation of line of sensing route 904.Therefore, processor 260 just can calculate the intersection point of these two sensing routes 902,904, and then tries to achieve the coordinate of object 502.This object coordinate computing method are exactly so-called two line method of intersection.In addition, portable electronic input media 200 also can adopt additive method, and for example trigonometric function method calculates the coordinate of object 502, because the method is used in existing optical touch control system widely, just repeats no more at this.In addition, utilize above-mentioned teaching, this area has knows that the knowledgeable is when knowing that this portable electronic input media 200 also can be used in multi-point touch (multi touch) conventionally.
In addition, in the visual field of the first image sensor or the second image sensor except object to be measured 502, also may there are other objects at a distance in the visual field, and these objects also can reflected infrareies and interfere with the operation of portable electronic input media 200, therefore can utilize the brightness of the light that object reflects to screen.(but not as limit) for instance, the predeterminable brightness threshold value of processor 260 or a brightness range, and the brightness value of each pixel (pixel) in the image that the first image sensor and the second image sensor are captured detects screening.If the brightness value of a pixel exceedes default brightness threshold value or drops in default brightness range, the brightness value of this pixel meets preset standard.Mode according to this, sequentially screens the brightness value of each pixel in image, can filtering object 502 to be measured other objects in addition.
Utilize above-mentioned explanation, the scope of known aforementioned touch area 590 can reach infinity in theory.But the size of touch area 590 still can utilize the mode of software to limit.Referring again to Fig. 8, in touch area 590, the length on the limit being formed by dotted line 582 is known, and the length on two limits that formed by dotted line 584 and 586 is all endless in theory.Be predetermined length for making the length on two limits that formed by dotted line 584 and 586, processor 260 can define different touch-control scopes according to different application occasion.For instance, when portable electronic input media is used as a virtual mouse, can be defined according to the use habit scope of user's application entity mouse in the stool and urine of the touch area 590 in the first image sensing module 230 and the second image sensing module 240 fronts so, for example, be the touch-control scope that is defined as 15cm × 15cm (being dotted line 582 length × dotted line 584 length) size.Or, processor 260 can utilize the size of object image and the relation of distance immediately to define the predetermined length of dotted line 584 and 586, also can utilize the catoptrical brightness of object image to define this predetermined length, or immediately define the predetermined length of dotted line 584 and 586 in conjunction with these two kinds of modes, and will in the mode of definition, build in the middle of the software or firmware that processor 260 adopts.Thus, touch area 590 just can present a quadrilateral touch-control scope with predetermined area size.
Hold above-mentionedly, the in the situation that of having predetermined area size in touch area 590, processor 260 can first calculate the coordinate of object 502, and then judges whether object 502 is positioned at touch area 590.In the time that object 502 is positioned at touch area 590, processor 260 just can pass through the coordinate of communication interface 560 object outputs 502.Certainly, processor 260 can be also the coordinate that first calculates object 502, and the electronic installation coordinate of object 502 being exported to by communication interface 220, to allow this electronic installation judge voluntarily whether object 502 is positioned at touch area 590, and then determine whether be used.
Please refer to Figure 11, this embodiment can be mainly the restriction that utilizes hardware at explanation portable electronic input media 200, makes the visual field of the first image sensor 232 and the second image sense side device 242 to change into limited distance by infinity.The positional information of the object of the embodiment that this embodiment mainly can be used for calculating earlier figures 5.As shown in the figure, Figure 11 illustrates another set-up mode of the internals of image sensing module 230.As shown in figure 11, the image capture face 232A of the first image sensor 232 and the bottom surface 2301A of load bearing seat present predetermined angle theta 3, and this predetermined angle theta 3 is to be less than 90 degree.In addition, infrared light filtering apparatus 234, optical mirror slip group 236, infrared light emission device 238 (this figure does not illustrate) also arrange along with this predetermined angle theta 3 with optical mirror slip 239 (this figure does not illustrate).Wherein, infrared light emission device 238 must make the direct of travel of infrared light can be roughly parallel to real work table plane 802 with the set-up mode of optical mirror slip 239.Because this predetermined angle theta 3 is for being less than 90 degree, therefore the visual field of the first image sensor 232 is limited distance.That is to say, the depth of field of the image that the first image sensor 232 senses is limited distance.
Similarly, the second image sensor 242, infrared light filtering apparatus 244, optical mirror slip group 246, infrared light emission device 248 and the optical mirror slip 540 in the second image sensing module 240 also arranges in the mode shown in Figure 12.
Referring again to Fig. 8, because the visual field of the first image sensor 232 and the second image sensor 242 is to change into limited distance by infinity, therefore known in touch area 590, the length on two limits that formed by dotted line 584 and 586 is that the visual field farthest that can sense according to the first image sensor 232 and 242 of the second image sensor defines.And the visual field farthest that image sensor can sense can be calculated with reference to the mode shown in Figure 12.In Figure 12, D is expressed as the visual field farthest (being the length of dotted line 584 or 586) that the first image sensor 232 can sense, and H is expressed as the height of the first image sensor 232, and θ 2 is expressed as angle.Relation between D, H, θ 2 is represented by the formula D=H/tan in figure (θ 2), and θ 3 (seeing Figure 11) adds that θ 2 spends for angle 90.For instance, H is 5mm, and θ 2 spends for angle 1.91, and D is H/tan (θ 2) through this formula calculating, is about 150mm.
In the foregoing embodiments, the calculating of object location information all utilizes the processor in supporting part to reach.In another embodiment, also can utilize the processor in portable communications electronic installation 100 to carry out computing.Also the first image sensing module and the second image sensing module carry out pre-process by image data and such as obtain, after characteristic parameters such as () area of object image, length breadth ratio, border, color, brightness of image, pass to again the processor in portable communications electronic installation 100, so that the processor in portable communications electronic installation 100 calculates the positional information of object 502 according to the characteristic of these image datas or image.
In sum, the present invention adopts two image sensing modules and a processor to build a Portable input media.In actual design, be that the sensing range of two image sensing modules is partly overlapped, make this partly overlapping region can be used to define a touch area.Thus, for example, when there being an object (finger or lip pencil thing) to be positioned at touch area, the image of the object that processor just can sense according to these two image sensing modules carrys out the positional information of calculating object.And in further designing, can make two image sensing modules transmitting infrared lights or laser light with irradiation object, and obtain by this image of object reflects infrared light or laser light, allow treatment circuit can carry out according to such image the positional information of calculating object.
Utilize the explanation of the various embodiments described above, known input media of the present invention can replace current mouse, keyboard, Trackpad ... wait user's input interface, and input media of the present invention have volume little, easy to carry, can put everywhere, advantage cheaply.In addition, input media of the present invention can be limited to working surface unlike current mouse and need smooth restriction, also unlike resistance or capacitive touch control plate, needs to have the restriction of an entity touch area.And utilize the explanation of the various embodiments described above, also the supporting part in known input media of the present invention can combine with portable electronic devices or link up.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating 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 (22)

1. the portable electronic input media that can carry communication electronic device, is characterized in that, comprising:
One supporting part, in order to carry this communication electronic device;
One communication interface, is arranged at this supporting part;
One first image sensing module;
One second image sensing module, wherein the sensing range of those image sensing modules is for partly overlapping, and this partly overlapping zone definitions is a touch area;
One operating surface, this operating surface is disposed in this touch area and on this operating surface has a function pattern, and this function pattern is in order to operate thereon for an object; And
One processor, respectively with this first image sensing module, this second image sensing module and this communication interface electric property coupling, in the time of this function pattern on this operating surface of this Object Operations, the image of this object that this processor senses according to those image sensing modules to be to calculate the positional information of this object, and exports this positional information to this communication electronic device by this communication interface.
2. the portable electronic input media that carries communication electronic device according to claim 1, is characterized in that, this processor calculates after this positional information of this object, and this processor also produces a control signal according to this.
3. the portable electronic input media that carries communication electronic device according to claim 2, is characterized in that, also include a vibrating elements, this vibrating elements is responded this control signal and vibrated.
4. the portable electronic input media that carries communication electronic device according to claim 2, is characterized in that, also include a sounding component, this generating device is responded this control signal and produced a sound.
5. the portable electronic input media that carries communication electronic device according to claim 2, it is characterized in that, the image of this object that this processor also senses according to those image sensing modules is to produce a judgement signal, when this this object of judgement signal indication is arranged in this touch area, this processor produces this control signal.
6. the portable electronic input media that can carry communication electronic device, is characterized in that, comprising:
One supporting part, in order to carry this communication electronic device;
One communication interface, is arranged at this supporting part;
One first image sensing module;
One second image sensing module, wherein the sensing range of those image sensing modules is for partly overlapping, and this partly overlapping zone definitions is a touch area;
One light-emitting device, is arranged in this load bearing seat, in order to project a function pattern on the corresponding workplace in this touch area; And
One processor, respectively with this first image sensing module, this second image sensing module and this communication interface electric property coupling, in the time of this function pattern on this workplace of this Object Operations, the image of this object that this processor senses according to those image sensing modules to be to calculate the positional information of this object, and exports this positional information to this communication electronic device by this communication interface.
7. the portable electronic input media that carries communication electronic device according to claim 6, is characterized in that, also include an operating surface, this workplace is positioned on this operating surface, so that this light-emitting device projects this function pattern on this operating surface.
8. the portable electronic input media that carries communication electronic device according to claim 6, is characterized in that, this processor calculates after this positional information of this object, and this processor also produces a control signal according to this.
9. the portable electronic input media that carries communication electronic device according to claim 8, is characterized in that, also includes a vibrating elements, is arranged in this supporting part, and this vibrating elements is responded this control signal and vibrated.
10. the portable electronic input media that carries communication electronic device according to claim 8, is characterized in that, also includes a sounding component, is arranged in this supporting part, and this generating device is responded this control signal and produced a sound.
The 11. portable electronic input medias that carry communication electronic device according to claim 8, it is characterized in that, the image of this object that this processor also senses according to those image sensing modules is to produce a judgement signal, when this this object of judgement signal indication is arranged in this touch area, this processor produces this control signal.
The system of 12. 1 kinds of portable communications electronic installations, is characterized in that, comprising:
One supporting part;
One communication interface, is arranged at this supporting part;
One operating surface, has a function pattern on this operating surface, this function pattern is in order to operate thereon for an object; And
One portable communications electronic installation, this portable communications electronic installation is optionally carried by this supporting part, includes:
One first image sensing module;
One second image sensing module, wherein the sensing range of those image sensing modules is for partly overlapping, and this partly overlapping zone definitions is a touch area, and this operating surface is disposed in this touch area; And
One processor, respectively with this first image sensing module, this second image sensing module and this communication interface electric property coupling, in the time that an object operates in this function pattern on this operating surface, the image of this object that this processor senses according to those image sensing modules to be to calculate the positional information of this object, and exports this positional information by this communication interface.
13. portable communications electronic apparatus systems according to claim 12, is characterized in that, this processor calculates after this positional information of this object, and this processor also produces a control signal according to this.
14. portable communications electronic apparatus systems according to claim 13, is characterized in that, also include a vibrating elements, this vibrating elements is responded this control signal and vibrated.
15. portable communications electronic apparatus systems according to claim 13, is characterized in that, also include this generating device of a sounding component and respond this control signal and produce a sound.
16. portable communications electronic apparatus systems according to claim 13, it is characterized in that, the image of this object that this processor also senses according to those image sensing modules is to produce a judgement signal, when this this object of judgement signal indication is arranged in this touch area, this processor produces this control signal.
The system of 17. 1 kinds of portable electronic devices, is characterized in that, comprising:
One supporting part;
One communication interface, is arranged at this supporting part;
One light-emitting device, is arranged in this supporting part, in order to project a function pattern on the corresponding workplace in a touch area; And
One portable communications electronic installation, this portable communications electronic installation is optionally carried by this supporting part, includes:
One first image sensing module;
One second image sensing module, wherein the sensing range of those image sensing modules is for partly overlapping, and this partly overlapping zone definitions is this touch area, and this operating surface is disposed in this touch area; And
One processor, respectively with this first image sensing module, this second image sensing module and this communication interface electric property coupling, in the time that an object operates in this function pattern on this workplace, the image of this object that this processor senses according to those image sensing modules to be to calculate the positional information of this object, and exports this positional information by this communication interface.
The system of 18. portable electronic devices according to claim 17, is characterized in that, also includes an operating surface, and this workplace is positioned on this operating surface, so that this light-emitting device projects this function pattern on this operating surface.
The system of 19. portable electronic devices according to claim 17, is characterized in that, this processor calculates after this positional information of this object, and this processor also produces a control signal according to this.
The system of 20. portable electronic devices according to claim 19, is characterized in that, also includes a vibrating elements, is arranged in this supporting part, and this vibrating elements is responded this control signal and vibrated.
The system of 21. portable electronic devices according to claim 19, is characterized in that, also includes a sounding component, is arranged in this supporting part, and this generating device is responded this control signal and produced a sound.
The system of 22. portable electronic devices according to claim 19, it is characterized in that, the image of this object that this processor also senses according to those image sensing modules is to produce a judgement signal, when this this object of judgement signal indication is arranged in this touch area, this processor produces this control signal.
CN201210417821.6A 2012-10-26 2012-10-26 Communication electronic device bearable portable electronic input device and system thereof Expired - Fee Related CN103792990B (en)

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Publication number Priority date Publication date Assignee Title
CN1811677A (en) * 2005-01-27 2006-08-02 时代光电科技股份有限公司 Data inputting device
US20110285633A1 (en) * 2007-01-25 2011-11-24 Microsoft Corporation Dynamic projected user interface
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