CN104932714A - Pen type optical indicating device and control method thereof - Google Patents
Pen type optical indicating device and control method thereof Download PDFInfo
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- CN104932714A CN104932714A CN201410103573.7A CN201410103573A CN104932714A CN 104932714 A CN104932714 A CN 104932714A CN 201410103573 A CN201410103573 A CN 201410103573A CN 104932714 A CN104932714 A CN 104932714A
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Abstract
A pen type optical indicating device and a control method thereof. The pen type optical indicating device is an optical indicating device convenient for a user to hold with a hand, wherein an opening is formed at the end part of a shell; a channel for sensing light and receiving the light is provided; main circuits in the device comprise a control unit for integrating circuit signals and a control interface unit for providing a control signal of the indicating device, which is generated by operation; the pen type optical indicating device also comprises a light source module and a sensing module which are integrated in an integrated circuit; the sensing module is a sensor array which mainly comprises a plurality of sensing elements arranged in an array mode, and is used for sensing light which is reflected by an external object to enter the device; and the device is additionally provided with a communication unit and a power supply management unit which can be communicated with a computer host. When being started, the pen type optical indicating device can enter one of a plurality of working modes, such as a cursor indicating mode, a handwriting mode and a touch control mode.
Description
Technical field
The present invention relates to a kind of pen type optical indicating device and control method, particularly a kind of pen type optical indicating device being provided with laser module and array sensing element.
Background technology
The design of pen pointers mostly is person easy to use can control computer cursor as mouse beacon, also can assist the handheld tool becoming computer graphics.
The pen pointers of generally common passive type is then need another aided drawing plate or handwriting pad as the device of mutual inductance, after pen pointers touches the plotting sheet being furnished with electric field, cause the effect of mutual inductance, cursor instruction or the signal of drawing locus can be produced.
Prior art provides if the device of cursor instruction purposes is as the mouse of mechanical type, optical profile type or roller devices, or pointer, such device reaches respectively by machinery or optical element and detects two dimension (X, Y-axis) object of moving direction, but have resolution not or the not high problem of accuracy.
And the image perception that optical profile type adopts is for optical sensor, for by such as CMOS(complementary metal-oxide half field effect transistor), CCD(charge coupled cell) etc. sensing element the light of acceptance is converted to electric signal, general technology can obtain the intensity (energy) of specific light source by this class component, accordingly can judging distance (as range sensor), energy variation along with the time, even as the element of Image Acquisition.
Optical indicating device, as computer mouse, can utilize optical sensor as the judgement of track movement, and when the light directive one produced operates plane, the energy variation that can be received by surrounding time, image procossing judge a motion-vector.
When this optical mouse operates, wherein light source produces utilizing emitted light continuously, and obtain the signal of reflected light with special angle directive surface, or obtain the image distribution of intensity of reflected light, namely its middle controller analyzes the moving direction of optical mouse.
In the technology that the track of aforesaid known optical mouse judges, quite rely on the signal of the reflected light obtained by surface, therefore the usefulness of general optical mouse will have different performances along with the form on surface.
Prior art also has a kind of capacitive character pointer, can produce capacitance variation between this type of pointer and touch control display, and this capacitance variation namely judges the basis of moving direction, therefore also can reach cursor and control and the function of drawing.But to be resolution equally not high and need software auxiliary and improve usefulness for shortcoming.
In the object that light tracks, general technology will be that transparent or not easily reflective material produces and judges failed problem because of surface structure, causes and cannot track, and also just may make relevant apparatus (as optical mouse) cannot smooth operation.
In prior art, if the device tracked for allowing light still possesses the usefulness necessarily tracked in Different Plane, move extra location, the outside sensing of the many uses of mode of conduct or some complex calculations obtaining light, but these location sensings or computing are only applicable in limited plane pattern because of the reason of the algorithm of the restriction of sensitivity, highly energy-consuming and complexity etc.These known optical sensors not can be applicable in all high reverse--bias or the plane of very antiradar reflectivity.
Summary of the invention
The present invention discloses a kind of pen type optical indicating device and control method, pen type optical indicating device is one facilitate hand-held pen type indicating device, according to one of embodiment, the housing of pen type optical indicating device is provided with a light channel, process obtains mobile message circuit through light sensing computing is then provided with in housing, than if any control module, in order to integrate circuit signal in pen type optical indicating device, and produce movable signal; The control signal of control interface unit for providing operation to produce pen type optical indicating device, and can be and be located at control roller on housing or button; Light source module emits beam from pen type optical indicating device for providing a light source, the light channel injection of light on the housing of pen type optical indicating device, and light source preferably can be the good laser of space same tone; Sensing module, comprises the sensor array be made up of the induction unit of multiple array format, in order to receive the light entering pen type optical indicating device through light channel; Communication unit generator communicates with a host computer; And a Power Management Unit, Power Management Unit connects a charging module, as solar recharging module.
After the energy that each induction unit in computing sensing module receives before and after an acquisition time, the capacity volume variance of the space interference formed before and after acquisition time can be drawn, to judge the moving direction of pen type optical indicating device, produce movable signal.
In one embodiment, aforementioned control unit, light source module and sensing module are integrated in an integrated circuit.
In one of the embodiment of control method, one of multiple mode of operation can be entered after starting pen type optical indicating device, device can provide user's application entity change-over switch to select one of multiple mode of operation, such as enters cursor pointing-type, hand-written pattern or control mode touch mode.
In order to technology, method and effect that the present invention takes for reaching set object further can be understood, refer to following detailed description for the present invention, graphic, believe object of the present invention, feature and feature, when being goed deep into thus and concrete understanding, but institute's accompanying drawings and annex only provide with reference to and use is described, be not used for the present invention's in addition limitr.
Accompanying drawing explanation
Fig. 1 shows the reflection optical path schematic diagram of plane of incidence and reflected light;
Figure 2 shows that in pen type optical indicating device of the present invention the sensor array schematic diagram be integrated in optical sensor array device in an integrated circuit;
Fig. 3 shows the circuit block diagram of pen type optical indicating device embodiment;
Figure 4 shows that the embodiment circuit design schematic diagram of pen type optical indicating device;
Figure 5 shows that the first embodiment schematic diagram of pen type optical indicating device;
Figure 6 shows that the second embodiment schematic diagram of pen type optical indicating device;
Figure 7 shows that the 3rd embodiment schematic diagram of pen type optical indicating device;
Figure 8 shows that the 4th embodiment schematic diagram of pen type optical indicating device;
Fig. 9 flow for displaying describes the rate-determining steps embodiment of pen type optical indicating device of the present invention;
Figure 10 is shown as the embodiment schematic diagram of the sensor array that apparatus of the present invention adopt;
Figure 11 shows the induction unit schematic layout pattern of optical sensor array device of the present invention;
Figure 12 is shown as optical sensor array device of the present invention and respectively responds to one of demonstration legend of unit's execution light autonomous tracing in intelligent vehicle;
Figure 13 is shown as each induction unit in optical sensor array device of the present invention and performs the demonstration legend two of light autonomous tracing in intelligent vehicle.
[symbol description]
Incident light 101 surface structure 105
Reflected light 103
Circuit board 20 sensor array 22
Respond to first 201 light supply apparatuses 24
Range of exposures 203 control circuit 26
Host computer 32 pen type optical indicating device 30
Control interface 310 connecting interface 311
Control module 301 control interface unit 302
Communication unit 303 storage unit 304
Light source module 305 Power Management Unit 306
Charging module 307 sensing module 308
Pen type optical indicating device 4 control module 41
Communication unit 42 Power Management Unit 43
Charging module 44 sensing module 45
Light source module 46 light channel 47
Surface 40
Pen type optical indicating device 5 solar panels 51
First control interface 52 second control interface 53
Light channel 54 surface 50
Pen type optical indicating device 6 connecting interface 61
Connecting line 601 host computer 65
First control interface 62 second control interface 63
Light channel 64 surface 60
Pen type optical indicating device 7 Wireless charging coil 71
First control interface 72 second control interface 73
Light channel 74 surface 70
Pen type optical indicating device 8 control interface 81
Angle-adjusting mechanism 82 light channel 84
Surface 80
Induction unit 101,102,103,104,105
Comparer 121,122,123,124,125
Summer 111 gain amplifier 112
Counter 113 output voltage Vout
Puppet responds to unit 1111,1112,1113,1114,1115,1116
Induction unit 1121,1122,1123,1124
Induction unit combination 1211,1212,1213,1214,1215,1216
Average-voltage signal Vavg direction X, Y
Very first time t0 second time t1
Induction unit combination 131,132
Step S901 ~ S907 indicating device mode of operation switching flow
Embodiment
For providing a convenience and the hand-held indicating device that can run in various plane easily, this instructions discloses a kind of pen type optical indicating device and control method, pen type optical indicating device can operate at a cursor pointing-type, when pen type optical indicating device runs on a surface, the signal controlling computer cursor moving direction can be produced; If under proficiency WriteMode, pen type optical indicating device runs on a surface equally, can produce the signal of continuous path; If at a control mode touch mode, pen type optical indicating device can run on a touch control display, produce the indicator signal on touch control display by this, but under specific circumstances, avoid interference the indicator signal on touch control display, this touch control display first should close touch controllable function when pen type optical indicating device enters control mode touch mode.
In the embodiment of the pen type optical indicating device disclosed by instructions and control method, in order to provide the indicating effect of high resolving power (resolution) with degree of accuracy (accuracy), particularly in the hollow shaft of a writing brush of pen type optical indicating device, be provided with an optical indication module, wherein light sensing technology has with the sensor array of the induction of arrayed unit composition especially, forming a light sensing unit, being converted to the circuit of the energy that can judge movement as receiving external optical signal.Producing after light sensing once a light source of embodiment, the light of an external object surface reflection is received from sensor array, and then the constructive or destruction interference image judging in reflected light according to the energy of reflection light that receives of multiple induction units, judge energy variation to judge a motion-vector by surrounding time.
Said light source preferably can adopt same light modulation (coherent light) or say is that light that a kind of space same tone (spatial coherence) is good is as light source, detect moving direction by this, and can in conjunction with the mode of sensitivity compensation (sensitivity compensation), a kind of light is utilized to track algorithm (movement recognition algorithm), simultaneously can noise reduction, therefore the relevant device of this technology that adopts goes in the plane of various stance.
In one embodiment, the integrated encapsulation technology of a kind of people having the same aspiration and interest light source (coherent light source packageintegration) can be adopted in optical indicator in the pen type optical indicating device that instructions proposes, adopt the device of this type of technology and extra optical lens or specific image sensor need not be installed, as a kind of complementary metal-oxide half field effect transistor imageing sensor (CMOS imagesensor, CIS), also any optical element need not be installed (as lens on opticpath, catoptron etc.), and directly receive reflection source by photoinduction unit, and the energy variation calculated before and after a period of time, detect the behavior of control cursor movement when operating this pen type optical indicating device by this.
First, Figure 1 shows that producing incident light (101) directive one plane by a specific light source device (not being shown in this figure) reflects the schematic diagram that (103) form multiple reflection optical path again, light source particularly adopts a kind of same light modulation as laser (coherent light), and " same to light modulation " described herein refers to the light that a kind of space same tone is good.
Multiple optical paths that this figure shows comprise the plane that incident light 101 directive one has surface structure 105, then reflect to form reflected light 103.Because microcosmic surface structure 105 is irregular structure, therefore reflected light 103 forms the light showing different directive as schemed signal.
Light supply apparatus produces incident light 101 directive plane continuously, and reflect to form reflected light 103, in process, reflected light 103 receives via sensor (not being shown in this figure), create the constructive image (pattern) with destruction interference of light in various optical path, use the incident light of people having the same aspiration and interest light source can promote this interference effect (interference effect) herein especially.
When the device being loaded with the interlock circuit performing this autonomous tracing in intelligent vehicle moves relative to sense plane (X-Y plane), wherein optical sensor receives the information of reflected light 103, (sampling) wherein information data is gathered again according to acquisition time interval (time slot), and obtain the average energy value (reflected light), and calculate the capacity volume variance of different time, diverse location.Optical indicator disclosed by this instructions adopts inductor array (sensor array) to obtain diverse location energy, and with the difference of the average energy value, can motion track be judged.Wherein the calculating of mean value can adopt the assembly average of the first energy obtained of all inductions, or the average energy that obtains of part induction unit, be such as the computing reference of mean value with row (X-direction as Figure 10) mean value or row (Y-direction as Figure 10) mean value; Also the average energy of periphery or center section may be taked as reference mean value.
According to one of embodiment adopting the sensor array, if with same light modulation for light source, the interference effect of reflection ray can be promoted.Be a kind of light source in Yi Bobao (wave envelope) with very little phase delay (phase delay) with light modulation, wherein namely laser be a kind of same light modulation, is different from the non-coherent such as sunshine or LED light light.
Apply in the optical indicator disclosed in this instructions with light modulation, the sensitivity of the optical sensor of sensing reflected light interference can be improved with light modulation.Because there is the characteristic of very little phase differential (phasedifference) with light modulation, relative to space interference (spatialinterference) that the reflected light of non-coherent light produces, have less phase delay (phase delay) phenomenon with light modulation.Therefore, adopt same light modulation can add the advantage of strong reflection space interference, sensor as aforementioned array (for light) can obtain through the space of plane reflection light interference difference.
Sensor array can be consulted in the pen type optical indicating device of the present invention shown in Fig. 2 and be integrated in one of embodiment of the sensor array in an integrated circuit (IC) in optical indicator.According to one of inventive embodiments, sensor array and correlation control unit circuit accessible site are in semiconductor circuit, and on the light supply apparatus of light tracing device, integrated sensor array and the controller accessible site circuit board in this tracing device, therefore, the present invention without the need to special optical pickup, as certain lenses and special manufacture of semiconductor (as CIS) improve luminous sensitivity.
The sensor array 22 on optical sensor array device interior circuit board 20 is presented in figure, can be applicable to the optical indicator on pen type optical indicating device disclosed by this instructions or specific indicating device, sensor array 22 includes multiple induction units 201 of array format, by this integrated integrated Integration ofTechnology in an integrated circuit (integrated optical sensorarray on IC), comprise in one embodiment, make sensor array 22 controller 26 integrated with circuit simultaneously.On sensor array 22, the first 201(of multiple induction is that non-puppet responds to unit especially, has fixing spacing and uniform relative position as shown in Figure 10), with the light of average received through particular surface/plane reflection.Illustrate as in figure by light supply apparatus 24 emission of light to the range of exposures 203 in a plane, light directive sensor array 22 after plane reflection afterwards, wherein each induction unit 201 receives the reflected light of different directions respectively, by suitable photoelectric signal transformation, can calculate after control circuit 26 in device obtains signal with interlock circuit and add up each mean value responding to the energy that unit 201 receives, then the difference of each induction unit 201 and mean value is calculated again, relevant control circuit by judge according to this by one surface or plane reflection is formed space interference capacity volume variance (spatial interference difference), the capacity volume variance that control circuit 26 calculates according to accumulation before and after each acquisition time interval (timeslot) judges moving direction.Light supply apparatus 24 and integrated circuit (sensor array 22, control circuit 26) can be packaged in same module.
Optical sensor array device disclosed by above-described embodiment, the interference of so-called space be because of, when light (particularly same light modulation, but invention be not limited to same light modulation) directive after having the surface of irregular surface structure again reflection produce different directions reflected light and produce light interference (interference), this light produces constructive or destructive interference pattern after reflection, afterwards, obtained by sensor array because after the spatial information of relative motion (relative motion of device and plane) plane reflection, set up Mobile data on an x-y plane.
Special in an embodiment, the carrier of instructions disclosed application optical sensor array device is as being provided with laser the pen type optical indicating device of the optical indicator being light source, wherein primary circuit elements comprises the light supply apparatus (24) be located on a circuit board (20), in order to produce the light of an incidence surface, include sensor array (22), wherein there are multiple inductions unit (201) arranged in the form of an array, and include aforesaid control circuit (26), control circuit (26) optical light source device (24) and sensor array (22), in order to obtain the light signal that in multiple induction unit (201), multiple inducing pixel receives, and calculate energy state, and the energy state change before and after calculating acquisition time.
Fig. 3 shows the circuit block diagram of pen type optical indicating device embodiment.
Wherein show pen type optical indicating device 30 and there is a hollow shaft of a writing brush in one embodiment, housing is provided with a light channel, a such as perforate (opening), the circuit that various running produces movable signal is loaded with in the shaft of a writing brush, main circuit includes a control module 301, in order to integrate circuit signal in pen type optical indicating device 30, produce movable signal, have the circuit being electrically connected control module 301 as follows in addition.
Control interface unit 302 is the management circuit of control interface 310, is located at the control interface 310 on surface of shell as roller or button etc., allows user can operate the control signal producing pen type optical indicating device 30; There is embodiment can be provided with touch sensing element in the inwall of pen type optical indicating device 30 in addition, user can be sensed and point the touch-control behavior on pen type optical indicating device 30 housing.For example, the control interface 310 that control interface unit 302 connects comprises the entity change-over switch on the housing being located at pen type optical indicating device 30, as roller and one or more button, or a kind of interface of touch-control sensing.Control signal is sent to control module 301 by control interface unit 302 and processes and form various instruction, such as the instruction of the roller, button etc. of operating mouse, or in order to switch the mode of operation of pen type optical indicating device 30 afterwards.
Light source module 305 provides a light source, preferably as good in space same tone laser, and light source emits beam from pen type optical indicating device 30, and light penetrates through the housing glazed thread passage of pen type optical indicating device 30.
Sensing module 308 reflects the light of access to plant 30 in order to be received from external object (plane), the preferred implementation of sensing module 308 comprises the sensor array be made up of the induction unit (sensingcell) of multiple array format, in order to receive the light entering pen type optical indicating device 30 through housing glazed thread passage.After light arrives sensing module 308, can more fifty-fifty receive by the various inductions unit on sensor array, afterwards by after the first energy received before and after an acquisition time (time slot) of each induction in computing sensing module 308, draw the capacity volume variance of the space interference formed before and after acquisition time, to judge that pen type optical indicating device 30 is relative to the moving direction in a plane, to produce movable signal.
In the circuit of light sensing, sensing module 308 can be loaded with the control circuit of a first receiving optical signals of each induction of process, and carries out the computing of energy variation.Detail can consult the description of this instructions Figure 10, Figure 11.
Communication unit 303 provides wired or communication, pen type optical indicating device 30 is allowed to be communicated with a host computer 32 by this communication unit 303, the instruction of above-mentioned generation can be sent to host computer 32 and form cursor steering order, or motion track is produced under hand-written pattern, or touch command etc.Wherein communication is as Bluetooth communication protocol (Bluetooth
tM), WLAN (WiFi
tM), the various wireless communication protocol such as near field communication protocols (NFC) realized.
If in wire communication mode, the housing of pen type optical indicating device 30 is provided with as universal sequence confluxes the connecting interface 311 at interface (USB), host computer 32 can be connected by this, also can by this connecting interface 311 from host computer 32 or other power supply power takings.
The circuit that the main a kind of management of Power Management Unit 306 is charged to pen type optical indicating device 30, to manage the power supply of pen type optical indicating device 30, the electricity consumption of pen type optical indicating device 30 can be loaded in charging module in device 30 from one, comprise a rechargeable battery, or directly by the power taking as above-mentioned USB interface cable connection host computer 32.To the charging of rechargeable battery, device 30 is not got rid of and is adopted the charging modes of various types, and such as charging module can be a solar recharging module, Wireless charging coil, or by the cable of aforementioned connection host computer 32 to modes such as battery chargings.
Pen type optical indicating device 30 separately can include one in order to record the storage unit 304 of data, and storage unit 304 can as the internal memory of temporary dealing signal.
The pen type optical indicating device embodiment that instructions proposes can first reference diagram 4 be shown in the circuit design of the optical indicating device in a pen-type casing.
This example display pen type optical indicating device 4, has control module 41, communication unit 42, Power Management Unit 43, charging module 44, sensing module 45, light source module 46 and the light channel 47 being located at nib end in the hollow shaft of a writing brush.Light is sent by light source module 46, and through light channel 47 directive surface 40, the light reflected from surface 40, also in light channel 47 access to plant 4, is responded to unit by the array of sensing module 45 and received.
Pen type optical indicating device 4 outward appearance is one can facilitate hand-held pen type indicating device, light channel 47 is for being located at the light gateway at the nib position of pen type optical indicating device 4, except nib should be except a subvertical angle with surface 40, remainder is also unrestricted, can according to needing different designs.Be allow light pass in and out pen type optical indicating device 4 can smoothly through light channel 47 directive surface 40 with surface 40 subvertical nib main reason, also smoothly in reflection access to plant 4, received by sensing module 45 smoothly.
According to one of embodiment, in circuit design, light source module 46 is the control circuit comprising a light source (as laser module), can be encapsulated in the sensing module 45 with sensor array on a circuit, also together can be integrated in an integrated circuit with the technology of a System on Chip/SoC (System on Chip, SOC) with the control module 41 produced with host computer line signal or instruction.Communication unit 42 is to provide wired or wireless communication means and communication with external apparatus, and by communication unit 42, the handled instruction produced of control module 41 can be delivered to external computer main frame.
Other circuit are to provide the power circuit of device 4 as Power Management Unit 43 and charging module 44, comprise and adopt solar electric power, wireless charging technology, or use the various types power supply of battery.
About the architectural feature of pen type optical indicating device, embodiment can consult the first embodiment schematic diagram that Figure 5 shows that pen type optical indicating device.
In this example, the shell of pen type optical indicating device 5 is provided with changes the solar panels 51 that light is electric signal, is such as located at the top of pen type optical indicating device 5, and hand-held position is then compare below, can not affect the receipts light of solar panels 51.
Housing is according to needing to be provided with one or more control interface, if diagram is as the first control interface 52 of roller pattern, under specific operation mode, this can operate as computer mouse, the page of roller for rolling in graphical user interface, or switch the work such as display object; Again just like the second control interface 53 of button, this can operate the keypress function of the left and right or more as computer mouse.First, second control interface 52,53 can be used for the satellite interface performing rotation, convergent-divergent (zooming), dilatory (towing), continuous moving track etc.The contained pen type optical indicating device 5 of this instructions does not limit the quantity of the first or second control interface (52,53).First or second control interface 52,53 can the roller of mechanism type or button realize, also the mode that can adopt touch-control is not got rid of, namely be provided with touch sensing element (not shown) at the inwall of pen type optical indicating device 5, can detect that user touches the action of pen type optical indicating device 5 housing, perform as mouse beacon cursor, hand-written drawing or the function of touch-control equally.
The nib end of pen type optical indicating device 5 is provided with a light channel 54, provides light injection in pen type optical indicating device 5, smooth directive surface 50, and is received from the light reflected on surface 50.Light channel 54 preferably should aim at the position of pen type optical indicating device 5 inner light source.
Fig. 6 then shows the second embodiment schematic diagram of pen type optical indicating device.
The pen type optical indicating device 6 shown in figure is provided with connecting interface 61 on shell, and this example is wired connecting interface, is wired to host computer 65, in order to transmit steering order with connecting line 601; Another this connecting line 601 that also can pass through is from host computer 65 power taking.
The shell of pen type optical indicating device 6 can be provided with the interface of the operation such as the first control interface 62, second control interface 63, the mode of operation that the function provided can be run according to device 6 and changing.Equally, pen type optical indicating device 6 is provided with light channel 64 in end, and light emission to surface 60, and enters pen type optical indicating device 6 through light channel 64.
Figure 7 shows that the 3rd embodiment schematic diagram of pen type optical indicating device.
The pen type optical indicating device 7 of this example is provided with Wireless charging coil 71 in a part for device, and in general Wireless charging coil 71 can't show in appearance, but is loaded in housing, provides the mechanism of a wireless charging.When pen type optical indicating device 7 needs charging, can connect an external recharging apparatus with the position of Wireless charging coil 71, form electric power in coil-induced mode, the charging module of power storage in pen type optical indicating device 7, as rechargeable battery.
First control interface 72 is same with the second control interface 73 can realize as roller on computer mouse and keypress function, except physical button, also do not get rid of employing touch sensing element, the function of touch-control be provided.Light channel 74 is located at one end of pen type optical indicating device 7, aims at inner light source position, makes the smooth directive surface 70 of light, and is received from the light reflected on surface 70 and enters in pen type optical indicating device 7.
In order to provide the comfortable experience that holds a pen, according to one of pen type optical indicating device embodiment, the 4th embodiment as shown in Figure 8, a body of pen type optical indicating device 8 can have a gradient to operate, body is still provided with the control interface 81 of various types, the end of nib also has towards the light channel 84 on surface 80, and best enforcement aspect is nib end is and the 80 one-tenth subvertical angles in surface to allow light pass in and out light channel 84 smoothly.
According to the demand, the embodiment of the pen type optical indicating device that this instructions proposes is provided with one in order to adjust the angle-adjusting mechanism 82 of nib position and a surface of contact (surface 80) angle on housing, angle-adjusting mechanism 82 can person easy to use be convenient grips pen type optical indicating device, allow again include the circuit such as light source module and sensing module nib position can approximately perpendicular angle towards surperficial 80.
It is worth mentioning that, the pen type optical indicating device carried at this instructions can with an external computer main frame line, produce its function and object by this, the drive software of this pen type optical indicating device particularly can be installed in host computer, drive software provides user in the function of host computer end setting pen type optical indicating device, such as sets resolution (DPI), pen type optical indicating device mode of operation, operating function etc.
Drive software can be received from the steering order that pen type optical indicating device produces, and in the operating system of reaction in host computer.Drive software also switches to different working environments according to the mode of operation of pen type optical indicating device, such as when pen type optical indicating device operates on a cursor pointing-type, drive software, after the instruction receiving the generation of pen type optical indicating device, will be converted to the movement of cursor in operating system; When pen type optical indicating device operates on WriteMode on the other hand, the continuous moving signal of reception is converted to a continuous print track by drive software, and can form display handwriting tracks over the display, or for drawing or handwriting identification; When pen type optical indicating device operates on control mode touch mode, namely can run on a touch control display, produce the indicator signal on touch control display, in such a mode, or wherein touch control display should close touch controllable function when pen type optical indicating device enters control mode touch mode, avoid having touching signals and pen type optical indicating device signal simultaneously and produce the problem of signal disturbing.The coordinate position of pen type optical indicating device on touch control display will carry out computing by drive software.
In the embodiment controlling above-mentioned pen type optical indicating device, mainly disclose the control method of several mode of operations of pen type optical indicating device, as the flow process of Fig. 9 display.
Indicating device mode of operation switching flow can enter a default mode of operation when starting this pen type optical indicating device, as step S901, this mode of operation preset can be specific conventional mode of operation, or by the default mode of operation of user's sets itself, the drive software as by host computer end sets; Or the mode of operation of previous shutdown is recorded by pen type optical indicating device itself, the information storage of record is in the storage unit of device.
Enter a mode of operation after starter gear under, operate control interface (the entity change-over switch on housing) if device receives user and produce a selection (or switch) signal (step S903), or the drive software of user's operating computer host side and selecting.Then namely signal is selected to enter one of multiple mode of operation, as step S905 according to this.Under making pen type optical indicating device operate on a mode of operation, as step S907, comprise cursor pointing-type, one of hand-written pattern and control mode touch mode.
According to embodiment, when entering cursor pointing-type, pen type optical indicating device can run on the surface, produces the signal controlling computer cursor moving direction, when entering hand-written pattern, pen type optical indicating device runs on one on the surface equally, but drive software will record the position signalling of generation continuously, to produce continuous path, can in order to write, drawing etc., furthermore, under pen type optical indicating device can run on control mode touch mode, pen type optical indicating device can run on a touch control display, comprise LCD, OLED, the touch control display of the patterns such as LED, drive software by host computer end positions by position of touch, host computer or can be touch control display main frame (as smart mobile phone, panel computer, pointer electricity etc.), in order to produce the indicator signal on touch control display, wherein touch control display can close touch controllable function when this pen type optical indicating device enters control mode touch mode, touch control display touching signals is originally avoided to disturb the signal of pen type optical indicating device generation.
The first function mode of multiple inductions in above-mentioned light sensing array can with reference to the embodiment schematic diagram of the calculating energy distribution shown in Figure 10.
Figure 10 shows the layout of sensor array, multiple induction unit is distributed on X-Y plane, form the sensor array of NxM, the form of sensor array is not limited to the geometric configuration of symmetrical rectangle, square, circle, ellipse etc., and can determine according to practical application.Sensor array comprises multiple induction units 101,102,103,104,105 of array format, and arrange along direction X, Y respectively, actual quantity is not limited to this schematic diagram.Lay these induction units 101,102,103,104, on the circuit board of 105, main element also has multiple comparer 121,122,123,124,125, each comparer correspondence connects an induction unit, and input value is the average-voltage signal Vavg of the energy that each induction unit produces, in order to compare the voltage signal obtained after induction unit senses light, the signal value obtaining high-low voltage can be compared.Finally, namely control circuit obtains adjacent two sensor values comparison results, makes the judgement of moving direction.
In such as figure, comparer 121 is coupled to induction unit 101, one of them input signal namely respond to unit 101 institute sense generation energy signal, can represent by voltage signal, another input end is then average-voltage signal Vavg, therefore these two input signals of comparer 121 comparison, can export a comparative result, the present invention preferably represents this comparative result with a binary feature value (binary characteristic value), than the high-low voltage signal that H or L as shown in figure 12 represents respectively.
In optical sensor array device described in instructions, the mode utilizing sensor array to track is characterised in that the energy distribution (energy pattern) shown in the constructive and destructive interference pattern utilizing light (being preferably same light modulation) to be formed after plane reflection, judges motion-vector by the energy distribution change of different time.Wherein embodiment such as adopts a kind of irrelevant viewpoint to carry out moving the mode of judgement (non-relative view points to do movement judgment), namely introduce the energy information of the unit of induction around, to compare judgement moving direction with average inductive energy.It is worth mentioning that, this is different from the mode that general image pixel (pixel) information judges motion-vector, the present invention is by the employing time and calculates energy variation and judge motion track, and energy variation can take a kind of binary feature value (as H and L), this binary feature value be induction unit read comparing of value and assembly average.
In optical sensor array device itself, according to one of embodiment, the present invention is applied in the induction chip layout of the optical sensor array device in mobile device, induction chip comprises with the induction of arrayed unit, these induction units can comprise the induction unit (being called that puppet responds to unit) being located at and not acting on around, and the work induction of the responsible reception light being located at middle body is first, therefore the control circuit in aforementioned means or correlation calculation circuit are after obtaining the energy signal of all induction units, only obtain wherein non-puppet respond to unit energy signal continue follow-up utilization, such as these puppets respond to the energy signal that unit is not provided as motion-vector judgement, but can as the function purely judging light signal.Consult the induction unit schematic layout pattern of Figure 11 display.
This figure shows in an induction chip the multiple induction units being provided with and arranging in the form of an array, this example is presented at the outer of the induction unit of middle body and is arranged with puppet's sensor (dummy sensor), object be make whole induction chip processing procedure evenly, also can therefore make evenly sensing energy.The puppet that is surrounding located in embodiment display responds to unit 1111,1112,1113,1114,1115,1116, and to be set to idle induction first, and 1121,1122,1123,1124, the induction unit being located at close center section is the sensing element of main induction light heat input.
When the induction unit of an array format is exposed in a reflected light simultaneously, wherein can uniform induction to the induction unit of light for being comparatively partial to the sensing element of middle body, then may there be the possibility receiving uneven energy in induction unit around, therefore when adding up the gross energy that whole induction chip receives, unit (1111 can be responded to by setting puppet, 1112,1113,1114,1115,1116) get rid of the energy value that jitter may occur for these, and the reference energy value comparatively with reference value can be obtained.
As figure shows, circuit is provided with a summer 111, be electrically connected to each induction unit in induction chip, the photo-signal of each induction unit can be obtained, and magnitude of voltage can be become by Analog-digital Converter, but because the photocurrent of the first receiving optical signals of each induction is minimum in induction chip, needs the stage of being amplified by gain just can obtain effective referential data, and then can calculate energy variation acquired before and after acquisition time.According to embodiment, these photo-signals, after gain amplifier 112 processes, form output one output signal, as the signal represented with output voltage Vout; Export according to the energy signal calculating mean value effectively obtained through a counter 113 in addition, export as average-voltage signal Vavg.
Afterwards, the comparer that aforementioned output signals (as output voltage Vout) and mean value (as average-voltage signal Vavg) will export to disclosed by Figure 10, allow comparer comparison can respond to first energy signal and a reference value (responding to the average energy of unit as all or part of), obtain the energy state of this induction unit by this, in fact each induction unit high (H) and low (L) can represent energy state in a digital manner.
In process, control module according to the energy of the light source of the information Dynamic controlling luminescence unit of energy balane, can control the energy that it exports as by regulating the drive current of luminescence unit; Also can control each induction unit in wherein light sensing unit and receive the time shutter of incident ray, and export the gain of energy signal, and then calculate the luminous energy that each induction unit receives before and after an acquisition time.Accordingly, the adjustment intensity of light source/brightness and the compensation mechanism that coordinates the adjustment of aforementioned time shutter to set up, sensor array device can adapt to the surface of more situation, such as different surface structures, distance etc. with this surface.
After device movable signal produces, can move as the cursor of the host computer controlling institute's line separately, the control signal that the control interface that touch control display screen emulates also can be coordinated to produce, reaches the object as operating optical indicator.
Judge that the mode of moving direction can then with reference to Figure 12 in the surrounding time energy variation utilizing each induction unit to receive, 13, major way is the energy signal of energy and the statistical value utilizing the corresponding comparer comparison connecting each induction unit to receive, and calculates the capacity volume variance of the space interference formed before and after acquisition time.
Adopt the demonstration legend that two judgements gathering imaging execution motion-vector can track with reference to multiple induction units execution light in device disclosed by the present invention shown in Figure 12.
This example shows the induction unit combination 1211,1212,1213 of multiple arrayed, 1214,1215,1216, this example only illustrates to enumerate the example of the energy variation that sensed at different time (as very first time t0, the second time t1) by adjacent induction unit and identification motion-vector.
Wherein t0 and t1 is former and later two sampling times, H and L represents the high-low voltage signal exported by aforementioned comparer respectively, namely can be considered that energy state (is an energy state compared to average energy, energy state can binary feature value represent), mainly changed by the voltage signal of surrounding time and judge an overall motion-vector.Figure 12 is shown as the energy variation at former and later two different times in indivedual induction unit.
Signal display several (at least two) induction unit in such as induction unit combination 1211, when wherein left is presented at very first time t0, two induction units sense L and H two energy state respectively; When entering the second time t1, the energy variation of two induction units then changes H and H into.As L, H(t0) change H, H(t1 into) time, the energy state wherein responding to unit changes H into by L, represents the position of left of being substituted to by the H of right, therefore tentatively can judge that the moving direction of actual induction in this acquisition time is as left.
And another group induction unit of this induction unit combination 1211 is when very first time t0, energy state is H and L; To the second time t1, energy state is then L and L, and what wherein to have the first energy state of induction changes L into by H, is also to represent that the L of right substitutes the position of left, therefore can judge to have a moving direction left.
For another example in induction unit combination 1212, two induction units of left are L and H at the energy state of very first time t0, L and L is changed into the second time t1, can find out that the L of H wherein through left substitutes to the right and become L, therefore preliminary judgement has individual motion-vector to the right.
In like manner, it is H and L at the energy state of very first time t0 that right in induction unit combination 1212 has two to respond to unit, become H and H to change during the second time t1 afterwards, wherein the H substitute of the L of right through left changes H into, therefore can judge individual motion-vector to the right.
In figure, induction unit combination 1215 and 1216 does not have arrows direction, through judging that multiple induction unit does not have energy variation in the acquisition time of very first time t0 and the second time t1 in example for this reason, or moving direction cannot be judged by wherein energy variation, such as induction unit combination 1216 is L and H at very first time t0 energy state, to the second time t1, energy state changes H and L into, and this cannot be changed by energy state and judges moving direction.Therefore, these two kinds of aspects effectively do not output signal.
When the whole inductions unit of former and later two times has all judged the direction of respective energy variation, an overall motion-vector overall can be judged.
The mode that another moving direction judges as shown in figure 13 in device disclosed by the present invention induction chip perform the schematic diagram two that light tracks.This example passes through the conversion direction of the induction unit energy state of different time with the method schematic diagram of identification motion-vector, and wherein X is negligent value, is the comparison of t0 and t1 institute induced signal, judges motion-vector by this.
When induction chip receives reflected light, the multiple induction units in induction chip are when different time compares with average energy according to the signal energy received, and produce and have height varying voltage signal, illustration like this is designated as generation induced signal " "; In some cases, still likely the induction unit of part does not have energy variation, or the height of independent voltage signal, now as figure is shown as negligent value " X ".
According to graphic enforcement aspect, in induction unit combination 131, obtain the energy variation of adjacent induction unit in very first time t0 through aforementioned comparer, be expressed as state " X ", wherein " X " is for paying no attention to value, and " " indicates that high-low voltage changes; Obtain the energy variation of several adjacent induction unit at the second time t1, be expressed as state " X ".Each energy state responding to unit through very first time t0 and the second time t1 changes, this routine display state " X " is changed into " X ", can judge that " " is to left dislocation (shift), therefore can judge that this induction unit combination 131 has a change be moved to the left, as shown by arrows in FIG..
In induction unit combination 132, wherein adjacent induction unit is expressed as state " X " in the energy variation of very first time t0, and when the second time t1, energy state is expressed as " X ", now visible after the time changes (t0 to t1), wherein state " " shows the trend of displacement to the right.Therefore, the invention disclosed by this instructions can utilize the energy variation of this surrounding time to judge the moving direction of single unit system.
It is worth mentioning that, when judging moving direction, because invention takes sensor array, therefore small error can't affect the overall result judged.If autonomous tracing in intelligent vehicle is applied in computer optical mouse, the travel frequency of user's operating mouse is far below the processing speed wherein as control circuit, and some referential datas slowly changed can't affect overall judgement.
In sum, pen type optical indicating device proposed by the invention is structurally for convenience of the pen type indicating device gripped, nib is provided with perforate, and inside is preferred is light source with laser, and pen type optical indicating device can penetrate light, after a plane reflection, sense light signal by the sensor array that in it, array pattern induction unit does not form, and then depict motion track, mouse action cursor can be used as and use, or as auxiliary function of drawing, or as touch-control purposes.
But the foregoing is only preferred possible embodiments of the present invention, non-ly therefore namely limit to the scope of the claims of the present invention, therefore the equivalent structure change of such as using instructions of the present invention and diagramatic content to do, be all in like manner included within the scope of the present invention, close and give Chen Ming.
Claims (20)
1. a pen type optical indicating device, is characterized in that, described pen type optical indicating device comprises:
One housing, described housing is provided with a light channel, is provided with in described housing:
One control module, in order to integrate the circuit signal in described pen type optical indicating device, to produce movable signal;
One control interface unit, is electrically connected at described control module, provides operation to produce the control signal of described pen type optical indicating device;
One light source module, is electrically connected at described control module, provides a light source to emit beam from described pen type optical indicating device, the described light channel injection of described light on the described housing of described pen type optical indicating device;
One sensing module, is electrically connected at described control module, and described sensing module comprises the sensor array be made up of the induction unit of multiple array format, in order to receive the light entering described pen type optical indicating device through described light channel;
One communication unit, is electrically connected at described control module, and described pen type optical indicating device is communicated with a host computer by described communication unit; And
One Power Management Unit, is electrically connected at described control module, in order to manage the power supply of described pen type optical indicating device;
Wherein, after the energy that each induction unit in sensing module described in computing receives before and after an acquisition time, draw the capacity volume variance of the space interference formed before and after described acquisition time, to judge the moving direction of described pen type optical indicating device, produce described movable signal.
2. pen type optical indicating device according to claim 1, is characterized in that, described light channel is the light gateway at the nib position being located at described pen type optical indicating device.
3. pen type optical indicating device according to claim 2, is characterized in that, the described housing of described pen type optical indicating device is provided with one in order to adjust the angle-adjusting mechanism of the angle at described nib position and a surface of contact.
4. pen type optical indicating device according to claim 2, it is characterized in that, be provided with multiple puppet in the induction unit of the described array format had in described sensor array and respond to unit, described sensor array is in order to be received from a surface reflection and through the light of described light channel incidence.
5. pen type optical indicating device according to claim 4, is characterized in that, has fixing spacing and average relative position between described induction unit.
6. pen type optical indicating device according to claim 5, is characterized in that, described puppet responds to unit and is located at around described sensor array.
7. pen type optical indicating device according to claim 6, is characterized in that, described light source is the laser that a space same tone is good.
8. pen type optical indicating device according to claim 7, is characterized in that, described control module, described light source module and described sensing module are integrated in an integrated circuit.
9. pen type optical indicating device according to claim 1, is characterized in that, described communication unit provide wired or wireless communications method to be connected to described host computer.
10. pen type optical indicating device according to claim 9, is characterized in that, described wire communication mode is connected to described host computer by a connecting interface.
11. pen type optical indicating devices according to claim 1, is characterized in that, described control interface unit comprises the entity change-over switch on the housing being located at described pen type optical indicating device.
12. pen type optical indicating devices according to claim 11, is characterized in that, described entity change-over switch comprises a roller and one or more button.
13. pen type optical indicating devices according to claim 1, it is characterized in that, described Power Management Unit connects a charging module.
14. pen type optical indicating devices according to claim 13, is characterized in that, described charging module is a solar recharging module.
15. pen type optical indicating devices according to claim 13, is characterized in that, described charging module is a Wireless charging coil.
The control method of 16. 1 kinds of pen type optical indicating devices according to claim 1, is characterized in that, described control method comprises:
One of multiple mode of operation is entered after the described pen type optical indicating device of startup;
Wherein, if receive one to select signal, namely one of described mode of operation is entered according to described selection signal.
The control method of 17. pen type optical indicating devices according to claim 16, is characterized in that, selects one of described mode of operation by the entity change-over switch be located on the housing of described pen type optical indicating device.
The control method of 18. pen type optical indicating devices according to claim 17, it is characterized in that, described mode of operation comprises a cursor pointing-type, in described cursor pointing-type, described pen type optical indicating device runs on a surface, produces the signal of the moving direction controlling computer cursor.
The control method of 19. pen type optical indicating devices according to claim 17, is characterized in that, described mode of operation comprises WriteMode on the other hand, and in described hand-written pattern, described pen type optical indicating device runs on a surface, produces the signal of continuous path.
The control method of 20. pen type optical indicating devices according to claim 17, it is characterized in that, described mode of operation comprises a control mode touch mode, in described control mode touch mode, described pen type optical indicating device runs on a touch control display, produce the indicator signal on described touch control display, wherein said touch control display closes touch controllable function when described pen type optical indicating device enters described control mode touch mode.
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| CN201410103573.7A CN104932714A (en) | 2014-03-19 | 2014-03-19 | Pen type optical indicating device and control method thereof |
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Application publication date: 20150923 |