CN101893969B - Photosensitive element-containing input device and method - Google Patents
Photosensitive element-containing input device and method Download PDFInfo
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- CN101893969B CN101893969B CN 200910203881 CN200910203881A CN101893969B CN 101893969 B CN101893969 B CN 101893969B CN 200910203881 CN200910203881 CN 200910203881 CN 200910203881 A CN200910203881 A CN 200910203881A CN 101893969 B CN101893969 B CN 101893969B
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Abstract
The invention discloses an input method in which photosensitive elements are used, which comprises the following steps of: irradiating a subject matter by a laser and sensing the light reflecting time of a rotable first lens and a second lens for respectively reflecting the subject matter by two photosensitive elements; and deciding rotating angles of the first lens and the second lens according to the time to respectively obtain angles between virtual connecting lines between the subject matter and the first lens as well as between the subject matter and the second lens and a virtual connecting line between the first lens and the second lens so as to calculate the coordinate of the subject matter as corresponding input information, thereby improving the rate on obtaining the coordinate of the subject matter and saving the manufacture cost of an input device.
Description
Technical field
The present invention relates to message input device, especially the coordinate of related detection one subject matter is as the input media of input information.
Background technology
Some data input devices are arranged by detecting the coordinate of a subject matter, as the input information of corresponding character, pattern, symbol, or as the input information of interactive electronic game machine.
TaiWan, China patent I303773 discloses a kind of data input device, comprising: a microprocessor is electrically connected camera; One mirror places camera lens the place ahead of camera, make camera picked-up by this specularly reflected jiong one with reference to image; When this microprocessor detects camera picked-up user and touches the reference image of at least one input field of an image, just absorb the input image that the user touches at least one input field according to camera again, produce a corresponding input signal.
TaiWan, China publication 200813785 discloses a kind of device of distinguishing image position, is to utilize first and second catoptron respectively the image of a subject matter to be reflexed to the camera lens of at least one video camera, and is first and second image by the camera lens picked-up respectively; This first and second image of one microprocessor processes is to obtain subject matter in the relative coordinate value of an input operation face scope; The horizontal optical axis of this at least one video camera is parallel to this operating surface.
United States Patent (USP) 7,202,860 disclose a kind of at least one display screen and its desktop of using as pointing to a kind of coordinate entering device (Coordinate input device working with at least display screen and desk-top surface as the pointing areas thereof) in zone, be that left upper end and upper right side at a display screen is respectively equipped with a video camera, utilize two video cameras picked-up user to utilize its finger or an image information that carries out input action at display screen or desktop, calculate the coordinate that these image informations are converted to this finger or pen by a control circuit, with the input information as correspondence.
Summary of the invention
To detect and the speed of calculating subject matter coordinate and the manufacturing cost of saving input media in order promoting, and to propose the present invention.
Fundamental purpose of the present invention, provide a kind of input media and method that comprises photo-sensitive cell, utilize laser irradiation subject matter, and with two rotatable first reflecting bodys of photosensitive elements sense, second reflecting body reflect the light of subject matter reflection respectively, and obtain subject matter respectively and the virtual connecting line between first reflecting body, second reflecting body respectively and the angle between the virtual connecting line between first reflecting body, second reflecting body, to calculate the coordinate of subject matter, as relative input information, can promote the speed that obtains the subject matter coordinate.
Another object of the present invention provides a kind of input media and method that comprises photo-sensitive cell, need not use expensive camera module only to need two more cheap photo-sensitive cells, the manufacturing cost that can save input media.
A kind of input method that comprises photo-sensitive cell comprises the steps:
(1) time of the light that a subject matter reflects is reflected respectively in sensing, record rotatable one first reflecting body, one second reflecting body institute;
(2) determine the anglec of rotation of this first reflecting body, this second reflecting body according to this time, and obtain this subject matter respectively and virtual connecting line S1, S2 between this first reflecting body, this second reflecting body respectively and angle θ 1, θ 2 between the virtual connecting line S between this first reflecting body, this second reflecting body;
(3) utilize the length of this virtual connecting line S and this equal angles θ 1, θ 2 to calculate the relative coordinate of these subject matters, with as the input information corresponding to the position of this subject matter;
This step (1) comprises that utilizing at least one light emitting module to emit beam shines this subject matter; Utilize one first photo-sensitive cell, one second photo-sensitive cell respectively this first reflecting body of sensing, this second reflecting body reflect the light of this subject matter reflection respectively;
This step (1) comprises utilizes one first motor, one second motor to drive this first reflecting body, this second reflecting body respectively;
This step (2) comprise utilize a microprocessor detect to obtain this first photo-sensitive cell, this second photo-sensitive cell respectively this first reflecting body of sensing, this second reflecting body reflect the light of this subject matter reflection respectively and time of exporting sensing signal respectively, this microprocessor determines the anglec of rotation of this first reflecting body, this second reflecting body in the anglec of rotation of this time according to this first motor, this second motor;
This step (3) comprises utilizes this microprocessor according to the relative coordinate of the length of this virtual connecting line S and this equal angles θ 1, θ 2 these subject matters of calculating.
Other purpose of the present invention, effect see also graphic and embodiment, are described in detail as follows.
Description of drawings
Fig. 1 comprises the process flow diagram of the input method of photo-sensitive cell for the present invention;
Fig. 2 comprises the synoptic diagram of the input media of photo-sensitive cell for the present invention;
Fig. 3 comprises the synoptic diagram of input media first embodiment of photo-sensitive cell for the present invention;
Fig. 4 comprises the synoptic diagram of input media second embodiment of photo-sensitive cell for the present invention;
Fig. 5 comprises the synoptic diagram of input media the 3rd embodiment of photo-sensitive cell for the present invention;
Fig. 6 detects the synoptic diagram of first rotation angle of reflector for the present invention;
Fig. 7 is the detected synoptic diagram of the present invention's first photo-sensitive cell;
Fig. 8 detects the process flow diagram of the method for first rotation angle of reflector for the present invention.
[main element symbol description]
1,3,4,5 input medias that comprise photo-sensitive cell
11,11 ' first reflecting body
111,121,111 ', 121 ' reflecting surface
12,12 ' second reflecting body, 13 first motors
131,141 rotating shafts, 14 second motors
15 light emitting modules, 151 first light emitting modules
152 second light emitting modules, 16 microprocessors
161 timers, 161 17 first photo-sensitive cells
18 second photo-sensitive cells, 191 first mirrors
192 second mirrors
2 subject matters 21,22,23,24,25,26 light
S, S1, S2 connecting line θ 1, θ 2 angles
(1), (2), (3), (31), (32), (33) are respectively number of steps
Embodiment
The present invention comprises input media and the method for photo-sensitive cell, be to utilize light such as laser, visible light or infrared ray to shine a subject matter, and utilize two photo-sensitive cells rotatable first reflecting body of sensing, second reflecting body time of reflecting the subject matter reflection ray respectively, determine the anglec of rotation of first reflecting body, second reflecting body, further calculate the coordinate that obtains subject matter, as corresponding input information.
As Fig. 1, Fig. 2, shown in Figure 3, the input media 1 that the present invention comprises photo-sensitive cell comprises that first reflecting body 11, second reflecting body 12, first motor 13, second motor 14, light emitting module 15, microprocessor 16, first photo-sensitive cell 17 and second photo-sensitive cell 18 form.Light emitting module 15 also can be replaced by first light emitting module 151, second light emitting module 152.The rotating shaft 131 of first motor 13 can drive 11 rotations of first reflecting body, as shown in Figure 3 in conjunction with first reflecting body 11.The rotating shaft 141 of second motor 14 can drive 12 rotations of second reflecting body in conjunction with second reflecting body 12.Microprocessor 16 telecommunications connect first motor 13, second motor 14, first photo-sensitive cell 17 and second photo-sensitive cell 18, and microprocessor 16 can detect the signal that said elements sends.Light emitting module 15 can send plane light and shine a subject matter 2; The light that first light emitting module 151, second light emitting module 152 send is respectively via first reflecting body 11, second reflecting body, 12 reflected illumination subject matters 2.
When first motor 13, second motor 14 drives first reflecting body 11 respectively, second reflecting body 12 rotates respectively to a special angle, make the light 21 of subject matter 2 reflections, 22 respectively by first reflecting body 11, second reflecting body 12 reflexes to first photo-sensitive cell 17, second photo-sensitive cell 18, and make first photo-sensitive cell 17, during second photo-sensitive cell, 18 output sensing signals, microprocessor 16 can detect and obtain first photo-sensitive cell 17, the time of second photo-sensitive cell, 18 output sensing signals, microprocessor 16 is according to first motor 13, second motor 14 is in the anglec of rotation of this time, can determine subject matter 2 respectively and the virtual connecting line S1 between first reflecting body 11, angle θ 1 between the virtual connecting line S between S2 and first reflecting body 11 and second reflecting body 12, θ 2, again according to virtual connecting line S and angle θ 1, θ 2 calculates the relative coordinate of subject matters 2, with as the input information corresponding to the position of subject matter 2.Light emitting module 15, first light emitting module 151, second light emitting module 152 can be respectively and send laser, visible light or infrared ray.First photo-sensitive cell 17, second photo-sensitive cell 18 can comprise photodetector (Photo Detector), photodiode (Photo diode), light sensing receiver (Photo Receiver), photistor photo-sensitive cells such as (Photo transistor) respectively and can wired or wirelessly send photoreceptor signal.
First light emitting module 151, second light emitting module 152 are the configuration of piling up with first photo-sensitive cell 17, second photo-sensitive cell 18 respectively.When first reflecting body 11, when second reflecting body 12 rotates to special angle, because the speed of light is much larger than first reflecting body 11, the rotating speed of second reflecting body 12, so first light emitting module 151, the light that second light emitting module 152 penetrates can be respectively by first reflecting body 11, second reflecting body 12 reflexes to subject matter 2, reflexed to first reflecting body 11 by subject matter 2 again, second reflecting body 12, again by first reflecting body 11, second reflecting body 12 reflexes to first photo-sensitive cell 17, second photo-sensitive cell 18, therefore first photo-sensitive cell 17, second photo-sensitive cell 18 still can sense the light 21 of thing subject matter 2 reflections, 22.
The input method that comprises photo-sensitive cell of the present invention comprises the steps:
(1) sensing, detect rotatable first reflecting body 11, second reflecting body 12 reflect respectively the light 21 of a subject matter 2 reflections, 22 time;
(2) determine the anglec of rotation of first reflecting body 11, second reflecting body 12 according to this time, and obtain subject matter 2 respectively and virtual connecting line S1, S2 between first reflecting body 11, second reflecting body 12 respectively and angle θ 1, θ 2 between the virtual connecting line S between first reflecting body 11, second reflecting body 12;
(3) utilize the length of virtual connecting line S and angle θ 1, θ 2 to calculate the relative coordinate of subject matters 2, with as the input information corresponding to the position of subject matter 2.
The present invention comprises the input method of photo-sensitive cell except above-mentioned implementation step, also comprises the relevant technology contents of input media that comprises photo-sensitive cell in the instructions about the present invention, no longer repeat specification.
As Fig. 2, shown in Figure 3, first embodiment of the invention comprises the input media 3 of photo-sensitive cell, and except not having first light emitting module 151 shown in Figure 1, second light emitting module 152, all the other structures all input media that comprises photo-sensitive cell 1 with shown in Figure 2 are identical.First photo-sensitive cell 17 of present embodiment, second photo-sensitive cell 18 are arranged at the side of the horizontal direction of first reflecting body 11, second reflecting body 12 respectively.First reflecting body 11 is provided with at least one reflecting surface 111, second reflecting body 12 is provided with at least one reflecting surface 121; The reflecting surface 111 of first reflecting body 11, the reflecting surface 121 of second reflecting body 12 are parallel to rotating shaft 131,141 respectively.
As Fig. 2, shown in Figure 4, the input media that comprises photo-sensitive cell 4 of second embodiment of the invention, except not having light emitting module shown in Figure 2 15, all the other structures all input media that comprises photo-sensitive cell 1 with shown in Figure 2 are identical.First light emitting module 151 of present embodiment, second light emitting module 152 are the configuration of piling up with first photo-sensitive cell 17, second photo-sensitive cell 18 respectively, and first light emitting module 151, second light emitting module 152 and first photo-sensitive cell 17, second photo-sensitive cell 18 are arranged at the side of the horizontal direction of first reflecting body 11, second reflecting body 12 respectively.The reflecting surface 111 of first reflecting body 11, the reflecting surface 121 of second reflecting body 12 are parallel to rotating shaft 131,141 respectively.
As Fig. 2, shown in Figure 5, the input media that comprises photo-sensitive cell 5 of third embodiment of the invention, except not having light emitting module shown in Figure 2 15, all the other structures all input media that comprises photo-sensitive cell 1 with shown in Figure 2 are identical.First light emitting module 151 of present embodiment, second light emitting module 152 are the configuration of piling up with first photo-sensitive cell 17, second photo-sensitive cell 18 respectively, and first light emitting module 151, second light emitting module 152 and first photo-sensitive cell 17, second photo-sensitive cell 18 are arranged at the side of the vertical direction of first reflecting body 11 ', second reflecting body 12 ' respectively.The reflecting surface 121 ' of the reflecting surface 111 ' of first reflecting body 11 ', second reflecting body 12 ' is the configuration of 45 degree respectively with rotating shaft 131,141.First reflecting body 11 ', second reflecting body 12 ' can be respectively prism.
As Fig. 6, shown in Figure 7, the present invention also can make microprocessor 16 link a timer 161, send the mistiming between time of the strongest sensing signal and more weak sensing signal in regular turn with first photo-sensitive cell 17, second photo-sensitive cell 18, calculate the anglec of rotation of first reflecting body 11, second reflecting body 12 respectively, and do not need the anglec of rotation via first motor 13, second motor 14 to obtain the anglec of rotation of first reflecting body 11, second reflecting body 12 respectively.
Be example with first reflecting body 11, first light emitting module 151, first photo-sensitive cell 17, and first reflecting body 11 is provided with the reflecting surface 111 that m equal angles distributes, the method for detection first reflecting body 11 anglecs of rotation be described.When 11 rotations of first reflecting body, first photo-sensitive cell 17 reflecting surface 111 of sensing first reflecting body 11 in regular turn directly reflects the light 23 that first light emitting module 151 sends, and obtains a strongest sensing signal Sh respectively; The time that microprocessor 16 provides by timer 161, record detects the time T (n), T (n+1) of this strongest sensing signal Sh etc. in regular turn, wherein adjacent two mistimings (T (n+1)-T (n)) equal 11 rotation 1/m circle (360 degree) the required times of first reflecting body, and wherein n, m are natural numbers 1,2,3 etc.; When first photo-sensitive cell 17 between adjacent two time T (n), T (n+1), when a reflecting surface 111 reflection first light emitting module, 151 sends that subject matter 2 reflects that sense first reflecting body 11 reflex to the light 24 of subject matter 2 via first reflecting body 11, can obtain a more weak sensing signal S1; The time that microprocessor 16 provides by timer 161, record detects the time T (o) of this more weak sensing signal S1; Because first reflecting body 11 is to rotate near constant speed, so utilize time T (n), T (n+1), T (o), can calculate first reflecting body 11 and multiply by 360/m with respect to the anglec of rotation θ when time T (n) for (T (o)-T (n))/(T (n+1)-T (n)) in time T (o).
As Fig. 6, he 7, shown in Figure 8, the present invention detects the method for first reflecting body, 11 anglecs of rotation, comprises the steps:
(31) time that microprocessor 16 is provided by timer 161, record detects two time T (n), the T (n+1) that first photo-sensitive cell 17 sends two the strongest sensing signal Sh in regular turn; Wherein the strongest two sensing signal Sh be first photo-sensitive cell, 17 sensings, first reflecting body 11 a reflecting surface 111 directly the light 23 that sends of reflection first light emitting modules 151 produce; This two mistiming (T (n+1)-T (n)) equals 11 rotation 1/m circle (360 degree) the required times of first reflecting body;
(32) time that microprocessor 16 is provided by timer 161, record detects the time T (o) that first photo-sensitive cell 17 sends a more weak sensing signal S1; Wherein more weak sensing signal S1 be first photo-sensitive cell 17 between adjacent two time T (n), T (n+1), a reflecting surface 111 reflection subject matters 2 that sense first reflecting body 11 reflect first light emitting module, 151 sends and produce via the light 24 that first reflecting body 11 reflexes to subject matter 2;
(33) make microprocessor 16 calculate (T (o)-T (n))/(T (n+1)-T (n)) and multiply by 360/m, and obtain first reflecting body 11 in time T (o) with respect to the anglec of rotation θ when time T (n), determine the anglec of rotation of this first reflecting body 11 according to this anglec of rotation θ.
As Fig. 4, Fig. 6, Fig. 7, shown in Figure 8, the method for above-mentioned detection first reflecting body of the present invention 11 anglecs of rotation also is applicable to the anglec of rotation that detects second reflecting body 12; The relevant time corresponding to time T (n), T (n+1), T (o) of the anglec of rotation that definable calculates second reflecting body 12 is respectively T (p), T (p+1), T (q), can calculate (T (q)-T (p))/(T (p+1)-T (p)) multiply by 360/r, and obtain second reflecting body 12 in time T (q) with respect to the anglec of rotation when time T (p), determine the anglec of rotation of this second reflecting body 12 according to this anglec of rotation, wherein p, r are natural numbers 1,2,3 etc., and second reflecting body 12 is provided with the reflecting surface 121 that r equal angles distributes; R also can equal m.
As shown in Figure 5, the input media that comprises photo-sensitive cell 4 of third embodiment of the invention is because first light emitting module 151, second light emitting module 152 and first photo-sensitive cell 17, second photo-sensitive cell 18 are arranged at the side of the vertical direction of first reflecting body 11 ', second reflecting body 12 ' respectively.And the reflecting surface 121 ' of the reflecting surface 111 ' of first reflecting body 11 ', second reflecting body 12 ' is 45 degree with the light 25,26 that first light emitting module 151, second light emitting module 152 send respectively, directly reflect the light that first light emitting module 151, second light emitting module 152 send respectively and send the strongest sensing signal so first photo-sensitive cell 17, second photo-sensitive cell 18 can't sense the reflecting surface 121 ' of reflecting surface 111 ', second reflecting body 12 ' of first reflecting body 11 ' respectively, and must be by first mirror 191, second mirror 192.Because first mirror 191, second mirror 192 has the effect of preferable reflection ray respectively than subject matter 2, so at present embodiment, utilize first photo-sensitive cell 17, second photo-sensitive cell 18 senses the reflecting surface 111 ' of first reflecting body 11 ' respectively, the reflecting surface 121 ' of second reflecting body 12 ' reflects first mirror 191 respectively, second first light emitting module 151 that mirror 192 reflects, second light emitting module 152 send reflecting surface 111 ' via first reflecting body 11 ' respectively, the reflecting surface 121 ' of second reflecting body 12 ' reflexes to first mirror 191 respectively, the light of second mirror 192 can obtain the strongest sensing signal.Therefore the strongest relevant sensing signal is that the above mill of stating obtains in the present embodiment.
The method of above-mentioned detection first reflecting body 11 of the present invention, second reflecting body, 12 anglecs of rotation, except above-mentioned implementation step, comprising also in the instructions that relevant the present invention comprises detects first reflecting body 11, technology contents that second reflecting body, 12 anglecs of rotation are relevant, no longer repeat specification.
The present invention need not pass through precision, expensive step motor, the anglec of rotation of servo motor, also can obtain the anglec of rotation of first reflecting body 11, second reflecting body 12 respectively, and differentiation first reflecting body 11 that can be more accurate, the anglec of rotation of second reflecting body 12, and the position of more accurate acquisition subject matter 2.For example use more cheap, the motor that per second 60 changes drives first reflecting body, 11 rotations of having only a reflecting surface 111, use more cheap, the oscillation frequency that one system frequency (System timing clock) is provided is 7,200 ten thousand times timer 161, so each commentaries on classics of motor (360 degree) can be divided into 72,000,000/60=1,200,000 five equilibriums; And 360 degree=360x 60x60=1,290,000 seconds, so the per unit time interval (7,200 very much one second) differentiable angle is: 1,290,000/1,200,000=1.08 second, suitable accurately.If use the timer 161 of bigger oscillation frequency more can improve the degree of accuracy that angle detects.
The present invention comprises input media and the method for photo-sensitive cell, need not use expensive camera module only to need two more cheap photo-sensitive cells, the manufacturing cost that can save input media.And the anglec of rotation of utilizing motor shaft can be learnt angle θ 1, θ 2 between the virtual connecting line S between subject matter and first reflecting body, second reflecting body, need be through complicated, time-consuming image processing computing, just can calculate the coordinate that obtains subject matter simply, fast
The above record only for utilizing the embodiment of the technology of the present invention content, anyly is familiar with modification, the variation that this skill person uses the present invention to do, and all belongs to the claim that the present invention advocates, discloses and be not limited to embodiment.
Claims (19)
1. an input method that comprises photo-sensitive cell is characterized in that comprising the steps:
(1) time of the light that a subject matter reflects is reflected respectively in sensing, record rotatable one first reflecting body, one second reflecting body institute;
(2) determine the anglec of rotation of this first reflecting body, this second reflecting body according to this time, and obtain this subject matter respectively and virtual connecting line S1, S2 between this first reflecting body, this second reflecting body respectively and angle θ 1, θ 2 between the virtual connecting line S between this first reflecting body, this second reflecting body;
(3) utilize the length of this virtual connecting line S and this angle θ 1, θ 2 to calculate the relative coordinate of these subject matters, with as the input information corresponding to the position of this subject matter;
This step (1) comprises that utilizing at least one light emitting module to emit beam shines this subject matter; Utilize one first photo-sensitive cell, one second photo-sensitive cell respectively this first reflecting body of sensing, this second reflecting body reflect the light of this subject matter reflection respectively;
This step (1) comprises utilizes one first motor, one second motor to drive this first reflecting body, this second reflecting body respectively;
This step (2) comprise utilize a microprocessor detect to obtain this first photo-sensitive cell, this second photo-sensitive cell respectively this first reflecting body of sensing, this second reflecting body reflect the light of this subject matter reflection respectively and time of exporting sensing signal respectively, this microprocessor determines the anglec of rotation of this first reflecting body, this second reflecting body in the anglec of rotation of this time according to this first motor, this second motor;
This step (3) comprises utilizes this microprocessor according to the relative coordinate of the length of this virtual connecting line S and this angle θ 1, θ 2 these subject matters of calculating.
2. an input method that comprises photo-sensitive cell is characterized in that comprising the steps:
(1) time of the light that a subject matter reflects is reflected respectively in sensing, record rotatable one first reflecting body, one second reflecting body institute;
(2) determine the anglec of rotation of this first reflecting body, this second reflecting body according to this time, and obtain this subject matter respectively and virtual connecting line S1, S2 between this first reflecting body, this second reflecting body respectively and angle θ 1, θ 2 between the virtual connecting line S between this first reflecting body, this second reflecting body;
(3) utilize the length of this virtual connecting line S and this angle θ 1, θ 2 to calculate the relative coordinate of these subject matters, with as the input information corresponding to the position of this subject matter;
This step (1) comprises that utilizing at least one light emitting module to emit beam shines this subject matter; Utilize one first photo-sensitive cell, one second photo-sensitive cell respectively this first reflecting body of sensing, this second reflecting body reflect the light of this subject matter reflection respectively;
This step (1) comprises utilizes one first motor, one second motor to drive this first reflecting body, this second reflecting body respectively;
Determine the method for the anglec of rotation of this first reflecting body in this step (2), comprise the steps:
(21) time that a microprocessor is provided by a timer, two time T (n) of the record two the strongest sensing signals that detect that this first photo-sensitive cell sends in regular turn, T (n+1), the reflecting surface that this two the strongest sensing signal is this this first reflecting body of first photosensitive elements sense directly reflects the light that one first light emitting module sends, or a reflecting surface of this first reflecting body of sensing reflect one first mirror reflect this first light emitting module send via a reflecting surface of this first reflecting body reflex to this first mirror light one of them produce, this two time T (n), poor (T (n+1)-T (n)) of T (n+1) equals this first reflecting body rotation 1/m required time of circle, this n wherein, m is natural number, and this first reflecting body has m reflecting surface;
(22) time that this microprocessor is provided by this timer, record detects the time T (o) that this first photo-sensitive cell sends a more weak sensing signal, this more weak sensing signal be this first photo-sensitive cell between this adjacent two time T (n), T (n+1), this first reflecting body of sensing reflects this subject matter and reflects this first light emitting module send and produce via the light that this first reflecting body reflexes to this subject matter;
(23) make this microprocessor calculate (T (o)-T (n))/(T (n+1)-T (n)) and multiply by 360/m, and obtain this first reflecting body in this time T (o) with respect to the anglec of rotation when this time T (n); This microprocessor determines the anglec of rotation of this first reflecting body according to this anglec of rotation.
3. the input method that comprises photo-sensitive cell as claimed in claim 2 is characterized in that, determines the method for the anglec of rotation of this second reflecting body in this step (2), comprises the steps:
(24) time that this microprocessor is provided by this timer, two time T (p) of the record two the strongest sensing signals that detect that this second photo-sensitive cell sends in regular turn, T (p+1), this two the strongest sensing signal is that this second reflecting body of this second photosensitive elements sense directly reflects the light that one second light emitting module sends, or a reflecting surface of this second reflecting body of sensing reflect one second mirror reflect this second light emitting module send via a reflecting surface of this second reflecting body reflex to this second mirror light one of them produce, this two time T (p), poor (T (p+1)-T (p)) of T (p+1) equals this second reflecting body rotation 1/r required time of circle, this p wherein, r is natural number, and this second reflecting body has r reflecting surface;
(25) time that this microprocessor is provided by this timer, record detects the time T (q) that this second photo-sensitive cell sends a more weak sensing signal, this more weak sensing signal be this second photo-sensitive cell between this adjacent two time T (p), T (p+1), a reflecting surface of this second reflecting body of sensing reflects this subject matter and reflects this second light emitting module send and produce via the light that this second reflecting body reflexes to this subject matter;
(26) make this microprocessor calculate (T (q)-T (p))/(T (p+1)-T (p)) and multiply by 360/r, and obtain this second reflecting body in this time T (q) with respect to the anglec of rotation when this time T (p); This microprocessor determines the anglec of rotation of this second reflecting body according to this anglec of rotation.
4. the input method that comprises photo-sensitive cell as claimed in claim 3 is characterized in that, this first photo-sensitive cell, this second photo-sensitive cell are arranged at the side of the horizontal direction of this first reflecting body, this second reflecting body respectively.
5. the input method that comprises photo-sensitive cell as claimed in claim 4 is characterized in that, this first light emitting module, second light emitting module are the configuration of piling up with this first photo-sensitive cell, this second photo-sensitive cell respectively.
6. the input method that comprises photo-sensitive cell as claimed in claim 3 is characterized in that, this first photo-sensitive cell, this second photo-sensitive cell are arranged at the side of the vertical direction of this first reflecting body, this second reflecting body respectively.
7. the input method that comprises photo-sensitive cell as claimed in claim 6 is characterized in that, this first light emitting module, second light emitting module are the configuration of piling up with this first photo-sensitive cell, this second photo-sensitive cell respectively.
8. as each described input method that comprises photo-sensitive cell in the claim 2 to 7, it is characterized in that, this light be laser, visible light or infrared ray one of them.
9. input media that comprises photo-sensitive cell, for detection of, calculate the relative coordinate of a subject matter, with as the input information corresponding to the position of this subject matter, it is characterized in that comprising:
One first reflecting body;
One second reflecting body;
One first motor, its rotating shaft drives this first reflecting body rotation in conjunction with this first reflecting body;
One second motor, its rotating shaft drives this second reflecting body rotation in conjunction with this second reflecting body;
At least one light emitting module;
One first photo-sensitive cell;
One second photo-sensitive cell;
One microprocessor, telecommunication links this first motor, this second motor, this first photo-sensitive cell and this second photo-sensitive cell respectively;
Wherein this at least one light emitting module emits beam and shines this subject matter; This first photo-sensitive cell, this second photo-sensitive cell respectively this first reflecting body of sensing, this second reflecting body reflect the light of this subject matter reflection respectively and export sensing signal respectively; This microprocessor detects the time that obtains this sensing signal that this first photo-sensitive cell, this second photo-sensitive cell export respectively and the anglec of rotation that determines this first reflecting body, this second reflecting body, and obtain this subject matter respectively and virtual connecting line S1, S2 between this first reflecting body, this second reflecting body respectively and angle θ 1, θ 2 between the virtual connecting line S between this first reflecting body, this second reflecting body; This microprocessor is according to the relative coordinate of the length of this virtual connecting line S and this angle θ 1, θ 2 these subject matters of calculating, with as the input information corresponding to the position of this subject matter.
10. the input media that comprises photo-sensitive cell as claimed in claim 9 is characterized in that, this first photo-sensitive cell, this second photo-sensitive cell are arranged at the side of the horizontal direction of this first reflecting body, this second reflecting body respectively; This microprocessor detects and obtains this first photo-sensitive cell, when this second photo-sensitive cell is exported a sensing signal respectively, this microprocessor determines the anglec of rotation of this first reflecting body, this second reflecting body according to the anglec of rotation of this first motor, this second motor.
11. the input media that comprises photo-sensitive cell as claimed in claim 9 is characterized in that, comprises one first light emitting module, one second light emitting module; This first photo-sensitive cell, this second photo-sensitive cell are arranged at the side of the horizontal direction of this first reflecting body, this second reflecting body respectively; This first light emitting module, this second light emitting module are arranged at the side of the horizontal direction of this first reflecting body, this second reflecting body respectively; Time of providing by a timer of this microprocessor wherein, two time T (n), the T (n+1) of the record two the strongest sensing signals that detect that this first photo-sensitive cell sends in regular turn; Wherein this two the strongest sensing signal reflecting surface that is this this first reflecting body of first photosensitive elements sense directly reflects the light that this first light emitting module sends and produces, poor (T (n+1)-T (n)) of this two time T (n), T (n+1) equals this first reflecting body rotation 1/m required time of circle, wherein this n, m are natural numbers, and this first reflecting body has m reflecting surface; The time that this microprocessor provides by this timer, record detects the time T (o) that this first photo-sensitive cell sends a more weak sensing signal, this more weak sensing signal be this first photo-sensitive cell between this adjacent two time T (n), T (n+1), a reflecting surface that senses this first reflecting body reflects this subject matter and reflects this first light emitting module send reflexes to this subject matter via a reflecting surface of this first reflecting body the producer of light institute; This microprocessor calculates (T (o)-T (n))/(T (n+1)-T (n)) and multiply by 360/m, and obtain this first reflecting body in this time T (o) with respect to the anglec of rotation when this time T (n); This microprocessor determines the anglec of rotation of this first reflecting body according to this anglec of rotation.
12. the input media that comprises photo-sensitive cell as claimed in claim 11, it is characterized in that, the time that this microprocessor provides by this timer, two time T (p) of the record two the strongest sensing signals that detect that this second photo-sensitive cell sends in regular turn, T (p+1), the reflecting surface that this two the strongest sensing signal is this this second reflecting body of second photosensitive elements sense directly reflects the producer of light institute that one second light emitting module sends, this two time T (p) wherein, poor (T (p+1)-T (p)) of T (p+1) equals this second reflecting body rotation 1/r required time of circle, this p wherein, r is natural number, and this second reflecting body has r reflecting surface; The time that this microprocessor provides by this timer, record detects the time T (q) that this second photo-sensitive cell sends a more weak sensing signal; Wherein this more weak sensing signal be this second photo-sensitive cell between this adjacent two time T (p), T (p+1), a reflecting surface that senses this second reflecting body reflects this subject matter and reflects this second light emitting module send and produce via the light that this second reflecting body reflexes to this subject matter; This microprocessor calculates (T (q)-T (p))/(T (p+1)-T (p)) and multiply by 360/r, and obtain this second reflecting body in this time T (q) with respect to the anglec of rotation when this time T (p); This microprocessor determines the anglec of rotation of this second reflecting body according to this anglec of rotation.
13. the input media that comprises photo-sensitive cell as claimed in claim 12 is characterized in that, this first light emitting module, this second light emitting module are the configuration of piling up with this first photo-sensitive cell, this second photo-sensitive cell respectively.
14., it is characterized in that a reflecting surface of this first reflecting body, a reflecting surface of this second reflecting body are parallel to the rotating shaft of this first motor, the rotating shaft of this second motor respectively as each described input media that comprises photo-sensitive cell in the claim 9 to 13.
15. the input media that comprises photo-sensitive cell as claimed in claim 9 is characterized in that, comprises one first light emitting module, one second light emitting module; This first photo-sensitive cell, this second photo-sensitive cell are arranged at the side of the vertical direction of this first reflecting body, this second reflecting body respectively; This first light emitting module, this second light emitting module are arranged at the side of the vertical direction of this first reflecting body, this second reflecting body respectively; Time of providing by a timer of this microprocessor wherein, two time T (n), the T (n+1) of the record two the strongest sensing signals that detect that this first photo-sensitive cell sends in regular turn; Wherein this two the strongest sensing signal reflecting surface that is this this first reflecting body of first photosensitive elements sense reflects one first mirror and reflects this first light emitting module send and produce via the light that a reflecting surface of this first reflecting body reflexes to this first mirror, poor (T (n+1)-T (n)) of this two time T (n), T (n+1) equals this first reflecting body rotation 1/m required time of circle, wherein this n, m are natural numbers, and this first reflecting body has m reflecting surface; The time that this microprocessor provides by this timer, record detects the time T (o) that this first photo-sensitive cell sends a more weak sensing signal, this more weak sensing signal be this first photo-sensitive cell between this adjacent two time T (n), T (n+1), a reflecting surface that senses this first reflecting body reflects this subject matter and reflects this first light emitting module send and produce via the light that a reflecting surface of this first reflecting body reflexes to this subject matter; This microprocessor calculates (T (o)-T (n))/(T (n+1)-T (n)) and multiply by 360/m, and obtain this first reflecting body in this time T (o) with respect to the anglec of rotation when this time T (n); This microprocessor determines the anglec of rotation of this first reflecting body according to this anglec of rotation.
16. the input media that comprises photo-sensitive cell as claimed in claim 15 is characterized in that, this first light emitting module, this second light emitting module are the configuration of piling up with this first photo-sensitive cell, this second photo-sensitive cell respectively.
17., it is characterized in that a reflecting surface of this first reflecting body, a reflecting surface of this second reflecting body are the configuration of 45 degree with the rotating shaft of this first motor, the rotating shaft of this second motor respectively as claim 15 or the 16 described input medias that comprise photo-sensitive cell.
18. the input media that comprises photo-sensitive cell as claimed in claim 17 is characterized in that, this first reflecting body, this second reflecting body are respectively prism.
19. the input media that comprises photo-sensitive cell as claimed in claim 18 is characterized in that, this light be laser, visible light or infrared ray one of them.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910203881 CN101893969B (en) | 2009-05-22 | 2009-05-22 | Photosensitive element-containing input device and method |
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| CN 200910203881 CN101893969B (en) | 2009-05-22 | 2009-05-22 | Photosensitive element-containing input device and method |
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| CN101893969A CN101893969A (en) | 2010-11-24 |
| CN101893969B true CN101893969B (en) | 2013-07-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1860431A (en) * | 2003-05-19 | 2006-11-08 | 株式会社伊特 | Location detecting apparatus using area image sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1860431A (en) * | 2003-05-19 | 2006-11-08 | 株式会社伊特 | Location detecting apparatus using area image sensor |
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| Title |
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| JP昭59－112207A 1984.06.28 |
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