CN102654802A - Detecting method for manipulation object and touch control device - Google Patents
Detecting method for manipulation object and touch control device Download PDFInfo
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- CN102654802A CN102654802A CN2011100579345A CN201110057934A CN102654802A CN 102654802 A CN102654802 A CN 102654802A CN 2011100579345 A CN2011100579345 A CN 2011100579345A CN 201110057934 A CN201110057934 A CN 201110057934A CN 102654802 A CN102654802 A CN 102654802A
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Abstract
The invention discloses a detecting method for a manipulation object and a touch control device. According to the detecting method, the manipulation object having fingerprint characteristics and arranged on the operation interface of the touch control device can be detected. The detecting method comprises the steps of: retrieving an image on the operation interface through an image sensor and converting the retrieved image into signals indicated by a frequency domain through a frequency conversion function; and then, analyzing the signal located in a medium and high frequency signal region in the signals indicated by the frequency domain to generate a first signal or a second signal according to the distribution condition of the signals indicated by the frequency domain, wherein the first signal represents the existence of the manipulation object having fingerprint characteristics on the operation interface, and the second signal represents the non-existence of the manipulation object having fingerprint characteristics on the operation interface.
Description
Technical field
The present invention is about a kind of contactor control device, particularly a kind of detection method and contactor control device of controlling thing.
Background technology
In modern times in people's life; Computing machine is played the part of considerable role, for computing machine communicate information or object computer on function, people often pass through different input; Information or instruction are imported into to computing machine, and common input media comprises mouse, keyboard, pointer etc.
Before the mouse invention; The user often need be through the function of the specific instruction ability operational computations machine of keyboard input; From nineteen sixty-eight U.S. scientist Douglas Engelbart (Douglas Englebart) after California has made first mouse; The user just begins button and the roller devices operational computations machine on the mouse, and need not be through the loaded down with trivial details instruction of keyboard input.
Computer industry develops rapidly in recent years, for let everybody use a computer can be more convenient, carry easily, develop into optical mouse from previously used mechanical type mouse, and then develop and the touch mouse.
The touch MouseAcross is crossed the light source by mouse body inner bottom side opening, for example: light emitting diode (light emitting diode, LED); Shine in operation interface; Then with the finger image on image sensor (image sensor) the acquisition operation interface, a corresponding image processing mechanism, with capture continuously the variation of finger image; Convert displacement to, and suitable amount of movement that reacts on cursor on the computer screen and direction.Yet,, thereby cause track erroneous judgement or shake situation to take place owing to the image of external environment also can be captured by image sensor.
Summary of the invention
In view of above problem, the invention reside in provides a kind of detection method and contactor control device of controlling thing, uses the existing in prior technology problem that solves.
According to the detection method of controlling thing that one embodiment of the invention provided, be applicable to a contactor control device.This detection method of controlling thing is in order to the thing of controlling with fingerprint characteristic on the operation interface that is detected on contactor control device.
This detection method of controlling thing comprises: with the image on the image sensor acquisition operation interface of contactor control device; Utilize a frequency transform function will capture the signal of video conversion for representing with frequency field; And analyze the signal that is positioned at the medium-high frequency signal area in the signal of representing with frequency field, produce one first signal and a secondary signal with distribution scenario selectivity according to the signal of representing with frequency field.
Wherein, first signal representative is positioned at and has the thing of controlling with fingerprint characteristic on the operation interface, and secondary signal is represented and on operation interface, do not had the thing of controlling with fingerprint characteristic.
The described detection method of controlling thing, wherein, this analytical procedure comprises:
Be positioned at a signal energy of medium-high frequency signal area in this signal that calculating is represented with this frequency field;
This signal energy that relatively calculates and a threshold value; And
When this signal energy during, produce this first signal greater than this threshold value.
The described detection method of controlling thing, wherein, this calculation procedure comprises:
To be N * N zone with this signal halves that this frequency field is represented, wherein N be the integer greater than 1; And
Calculate this signal energy in zone in addition, upper left corner K * K zone in this N * N zone, wherein K is the positive integer less than N.
The described detection method of controlling thing, wherein, this analytical procedure comprises:
Be positioned at a quantity of the signal of medium-high frequency signal area in this signal that calculating is represented with this frequency field;
This quantity that relatively calculates and a threshold value;
When this quantity during, produce this first signal greater than this threshold value; And
When this quantity is not more than this threshold value, produce this secondary signal.
The described detection method of controlling thing; Wherein, This frequency transform function is DFT (Discrete Fourier Transform; Discrete Fourier conversion) one of in function, DCT (Discrete Cosine Transform, discrete cosine transform) function and DWT (Discrete Wavelet Transform, the discrete wavelet is changed) function.
The described detection method of controlling thing wherein, also comprises:
When on being positioned at this operation interface, existing this to control thing with this fingerprint characteristic, respond this first signal utilization capture this image calculate this and control the displacement of thing.
The described detection method of controlling thing wherein, also comprises:
When on being positioned at this operation interface, existing this to control thing, utilize this first signal to cause the displacement transducer output of this contactor control device to control the displacement of the motion track of thing corresponding to this with this fingerprint characteristic.
According to the contactor control device that one embodiment of the invention provided, it comprises operation interface, image sensor, processing unit and track detection device.
The layout setting of image sensor respective operations, and processing unit is connected to image sensor, and displacement transducer is connected to processing unit.Image sensor is in order to the image on the acquisition operation interface.Processing unit comes whether to have on the decision operation interface thing of controlling with fingerprint characteristic through the frequency content of the image that the analysis image sensor captures.The track detection device then can be detected on the motion track of controlling thing that has fingerprint characteristic on the operation interface.
Described contactor control device; Wherein, This processing unit utilize a frequency transform function will capture the signal of this video conversion for representing with a frequency field, and judge that according to a signal energy that is positioned at a medium-high frequency signal area in this signal of representing with this frequency field whether having with this fingerprint characteristic this on this operation interface controls thing.
Described contactor control device; Wherein, This processing unit will be positioned at this signal energy of this medium-high frequency signal area compares with a threshold value, and when this signal energy during greater than this threshold value, is identified in to exist with this fingerprint characteristic this to control thing on this operation interface.
Described contactor control device; Wherein, This processing unit utilize a frequency transform function will capture the signal of this video conversion for representing with a frequency field, and judge that according to the quantity that is positioned at a signal of a medium-high frequency signal area in this signal of representing with this frequency field whether having with this fingerprint characteristic this on this operation interface controls thing.
Described contactor control device; Wherein, This processing unit will be positioned at this quantity of this signal of this medium-high frequency signal area compares with a threshold value, and when this quantity during greater than this threshold value, is identified in to exist with this fingerprint characteristic this to control thing on this operation interface.
Described contactor control device, wherein, when on this operation interface, existing with this fingerprint characteristic this to control thing, this processing unit activates this track detection device, to detect the motion track that this controls thing.
Described contactor control device, wherein, this track detection device is a displacement transducer.
Described contactor control device, wherein, this track detection device is an image sensor.
Contactor control device provided by the present invention according to another embodiment of the present invention, it comprises operation interface, image sensor and processing unit.
The layout setting of image sensor respective operations, and processing unit is connected to image sensor, and displacement transducer is connected to processing unit.Image sensor is in order to the image on the acquisition operation interface.Processing unit then comes whether to have on the decision operation interface thing of controlling with fingerprint characteristic through the frequency content of analyzing the image that image sensor captures; And when on operation interface, exist have fingerprint characteristic control thing the time, utilize capture eiconometer calculate the displacement of controlling thing.
In addition, the distribution scenario of signal can be compared with preset threshold value through quantity and the value that will calculate that calculating is positioned at the signal energy of medium-high frequency signal area or is positioned at the signal of medium-high frequency signal area and judged.
Described contactor control device; Wherein, This processing unit utilize a frequency transform function will capture the signal of this video conversion for representing with a frequency field, and judge that according to a signal energy that is positioned at the medium-high frequency signal area in this signal of representing with this frequency field whether having with this fingerprint characteristic this on this operation interface controls thing.
Described contactor control device; Wherein, This processing unit will be positioned at this signal energy of this medium-high frequency signal area compares with a threshold value, and when this signal energy during greater than this threshold value, is identified in to exist with this fingerprint characteristic this to control thing on this operation interface.
Described contactor control device; Wherein, This processing unit utilize a frequency transform function will capture the signal of this video conversion for representing with a frequency field, and judge that according to the quantity that is positioned at this signal of a medium-high frequency signal area in this signal of representing with this frequency field whether having with this fingerprint characteristic this on this operation interface controls thing.
Described contactor control device; Wherein, This processing unit will be positioned at this quantity of this signal of this medium-high frequency signal area compares with a threshold value, and when this quantity during greater than this threshold value, is identified in to exist with this fingerprint characteristic this to control thing on this operation interface.
In sum, according to detection method and the contactor control device of controlling thing of the present invention, can use the track shake of avoiding external environment to cause in order to the thing of controlling on the operation interface that is detected on contactor control device with fingerprint characteristic.Moreover; According to detection method and the contactor control device of controlling thing of the present invention; Can whether control output according to the existence of controlling thing on the operation interface with fingerprint characteristic corresponding to the displacement that moves of controlling thing with fingerprint characteristic (that is, detect trace information).
The explanation of above explanation and following embodiment about content of the present invention in order to demonstration with explain spirit of the present invention and principle, and patent claim of the present invention explanation further is provided.
Description of drawings
Fig. 1 is the summary structural drawing according to the contactor control device of first embodiment of the invention;
Fig. 2 A is the summary structural drawing according to the contactor control device of second embodiment of the invention;
Fig. 2 B is the summary structural drawing according to the contactor control device of third embodiment of the invention;
The process flow diagram of Fig. 3 for grasping according to the detection method of controlling thing of first embodiment of the invention;
Fig. 4 is the process flow diagram according to the detection method of controlling thing of second embodiment of the invention;
Fig. 5 is the process flow diagram according to the detection method of controlling thing of third embodiment of the invention;
Fig. 6 is the process flow diagram according to the detection method of controlling thing of fourth embodiment of the invention;
Fig. 7 is the process flow diagram according to the detection method of controlling thing of fifth embodiment of the invention;
Fig. 8 is the process flow diagram according to the detection method of controlling thing of sixth embodiment of the invention;
Fig. 9 is the process flow diagram according to the detection method of controlling thing of seventh embodiment of the invention.
Wherein, Reference numeral:
200 contactor control devices
210 operation interfaces
220 image sensors
230 processing units
240 displacement transducers
250 first image sensors
260 second image sensors
Embodiment
Describe the present invention below in conjunction with accompanying drawing and specific embodiment, but not as to qualification of the present invention.
Fig. 1 is the summary structural drawing according to the contactor control device of first embodiment of the invention.
With reference to Fig. 1, contactor control device 200 comprises operation interface 210, image sensor 220 and processing unit 230.Image sensor 220 respective operations interfaces 210 are provided with, and processing unit 230 then connects image sensor 220.
In this, contactor control device 200 can be controlled the existence detection and the motion track detection of thing by single processing unit 230.
In other words, under normal operation, processing unit 230 can utilize 220 of image sensors capture eiconometer calculate the displacement of controlling thing.
In addition; With reference to Fig. 2 A, contactor control device 200 also can be controlled the existence detection of thing by processing unit 230, and a track detection device is set in addition; Displacement transducer 240 connection processing unit 230 for example, and detect by the motion track that displacement transducer 240 is controlled thing.
That is to say, under normal operation, displacement transducer 240 can utilize 220 of image sensors capture image detect the motion track of controlling thing with fingerprint characteristic, and produce displacement corresponding to the motion track of controlling thing.
In this, the existence that contactor control device 200 detection methods of controlling thing capable of using are controlled thing detects.
With reference to Fig. 2 B, contactor control device 200 comprises operation interface 210, first image sensor 250, second image sensor 260 and processing unit 230.First image sensor, 250 respective operations interfaces 210 are provided with, and processing unit 230 then connects first image sensor 250 and second image sensor 260 respectively.In this embodiment, the track detection device is second image sensor 260.
First image sensor 250 is in order to the image on the acquisition operation interface 210; And, processing unit 230 can through analyze 250 of first image sensors capture the frequency content of image come whether to have on the decision operation interface 210 the thing of controlling with fingerprint characteristic.260 of second image sensors according to 250 of first image sensors capture image have the motion track of controlling thing of fingerprint characteristic with sensing, and produce corresponding control signal and give displacement processing unit 230, produce corresponding motion track.Second image sensor 260 can be through connecting first image sensor 250, or via processing unit 230, obtain 250 of first image sensors capture the coherent video signal.
With reference to Fig. 3, at first, with the image (step 110) on the image sensor 220 acquisition operation interfaces 210 of contactor control device 200.Then, will capture again image send processing unit 230 to, to carry out the analysis of the frequency content of image by processing unit 230.In this; Processing unit 230 can utilize frequency transform function with 220 of image sensors capture the signal (step 120) of video conversion for representing with frequency field; Analyze the signal (step 130) that is positioned at the medium-high frequency signal area in the signal of representing with frequency field then, the distribution scenario of using according to the signal of representing with frequency field produces first signal or secondary signal (step 140 or step 150).
Wherein, first signal is represented on operation interface 210 and to be had the thing of controlling with fingerprint characteristic, and secondary signal is represented and on operation interface 210, do not had the thing of controlling with fingerprint characteristic.Wherein, the thing of controlling that has a fingerprint characteristic can be finger.Frequency transform function can be DFT (Discrete Fourier Transform; The discrete Fourier conversion) function, DCT (Discrete Cosine Transform; Discrete cosine transform) function or DWT (Discrete Wavelet Transform, discrete wavelet conversion) function.
And, on being positioned at operation interface 210, do not exist have fingerprint characteristic control thing the time, contactor control device 200 promptly can not exported the displacement corresponding to the motion track of controlling thing.Otherwise, on being positioned at operation interface 210, exist have fingerprint characteristic control thing the time, contactor control device 200 just can be exported the displacement corresponding to the motion track of controlling thing.
In other words; With reference to Fig. 4; On being positioned at operation interface 210, exist have fingerprint characteristic control thing the time; Processing unit 230 can response first signal utilize 220 of image sensors capture image calculate the displacement of controlling thing, and the displacement of gained is calculated in output so that the cursor on the display (not shown) carries out corresponding move (step 142).And on being positioned at operation interface 210, do not exist have fingerprint characteristic control thing the time; 230 of processing units response secondary signal is not controlled calculating or the displacement that will not calculate gained of the displacement of thing and is exported, and can not export the displacement (step 152) corresponding to the motion track of controlling thing to cause contactor control device 200.
If use the contactor control device 200 of displacement transducer 240 as the track detection device; With reference to Fig. 5; On being positioned at operation interface 210, exist have fingerprint characteristic control thing the time, processing unit 230 can utilize first signal to cause the displacement (step 144) of displacement transducer 240 outputs corresponding to the motion track of controlling thing.And on being positioned at operation interface 210, do not exist have fingerprint characteristic control thing the time; The running of processing unit 230 secondary signal position of rest displacement sensors 240 capable of using or the output of interrupt bit displacement sensor 240 can not exported the displacement (step 152) corresponding to the motion track of controlling thing to cause contactor control device 200.And when the contactor control device 200 that uses second image sensor 260 as the track detection device; On being positioned at operation interface 210, exist have fingerprint characteristic control thing the time; Processing unit 230 can utilize first signal to cause 260 outputs of second image sensor corresponding to the motion track of controlling thing, and processing unit 230 then carries out the calculating of displacement according to the motion track of controlling thing.
In this, signal can be compared with preset threshold value through quantity and the value that will calculate that calculating is positioned at the signal energy of medium-high frequency signal area or is positioned at the signal of medium-high frequency signal area in the distribution scenario of medium-high frequency signal area and judged.
Be positioned at the signal energy of medium-high frequency signal area with calculating; With reference to Fig. 6; Processing unit 230 can calculate the signal energy (step 132) that is positioned at the medium-high frequency signal area in the signal of representing with frequency field, and with the signal energy that calculates compare with preset threshold value (step 134).When signal energy during greater than threshold value, produce first signal (step 140), promptly processing unit 230 is identified in to exist on the operation interface and has the thing of controlling of fingerprint characteristic, thereby causes corresponding to the displacement detecting of image and normally carry out.When signal energy is not more than threshold value; Produce secondary signal (step 150); Be that processing unit 230 is identified in and does not have the thing of controlling with fingerprint characteristic on the operation interface, thus cause displacement detecting corresponding to image to stop to detect or stop to export detect displacement.
Wherein, With reference to Fig. 7; In step 132, can be N * N zone with the signal halves of representing with frequency field earlier, wherein N is the integer (step 1321) greater than 1; Calculate the signal energy in zone in addition, upper left corner K * K zone in N * N the zone then, wherein K is the positive integer (step 1322) less than N.In other words, in N * N zone, by the right side and from the bottom to top to a left side, being changed to by big of frequency to little.
Be positioned at the quantity of the signal of medium-high frequency signal area with calculating; With reference to Fig. 8; Processing unit 230 can calculate the quantity (step 136) of the signal that is positioned at the medium-high frequency signal area in the signal of representing with frequency field, and with the quantity of the signal that calculates compare with preset threshold value (step 138).When the quantity of signal during greater than threshold value, produce first signal (step 140), promptly processing unit 230 is identified in to exist on the operation interface and has the thing of controlling of fingerprint characteristic, thereby causes corresponding to the displacement detecting of image and normally carry out.When the quantity of signal is not more than threshold value; Produce secondary signal (step 150); Be that processing unit 230 is identified in and does not have the thing of controlling with fingerprint characteristic on the operation interface, thus cause displacement detecting corresponding to image to stop to detect or stop to export detect displacement.
Wherein, With reference to Fig. 9; In step 132, can be N * N zone with the signal halves of representing with frequency field earlier, wherein N is the integer (step 1321) greater than 1; Calculate the quantity of the signal in zone in addition, upper left corner K * K zone in N * N the zone then, wherein K is the positive integer (step 1323) less than N.In other words, in N * N zone, by the right side and from the bottom to top to a left side, being changed to by big of frequency to little.
In sum, according to detection method and the contactor control device of controlling thing of the present invention, can use the track shake of avoiding external environment to cause in order to the thing of controlling on the operation interface that is detected on contactor control device with fingerprint characteristic.Moreover; According to detection method and the contactor control device of controlling thing of the present invention; Can whether control output according to the existence of controlling thing on the operation interface with fingerprint characteristic corresponding to the displacement that moves of controlling thing with fingerprint characteristic (that is, detect trace information).
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (20)
1. a detection method of controlling thing is applicable to a contactor control device, controls thing with one of the fingerprint characteristic that has on the operation interface that is detected on this contactor control device, it is characterized in that this detection method of controlling thing comprises:
With the image on this operation interface of image sensor acquisition of this contactor control device;
Utilize a frequency transform function will capture the signal of this video conversion for representing with frequency field; And
Be positioned at the signal of medium-high frequency signal area in this signal that analysis is represented with this frequency field; Distribution scenario selectivity with according to this signal of representing with this frequency field produces one first signal and a secondary signal; Wherein the representative of this first signal is positioned at and exists with this fingerprint characteristic this to control thing on this operation interface, and this secondary signal is represented and on this operation interface, do not existed with this fingerprint characteristic this to control thing.
2. the detection method of controlling thing according to claim 1 is characterized in that, this analytical procedure comprises:
Be positioned at a signal energy of medium-high frequency signal area in this signal that calculating is represented with this frequency field;
This signal energy that relatively calculates and a threshold value; And
When this signal energy during, produce this first signal greater than this threshold value.
3. the detection method of controlling thing according to claim 2 is characterized in that, this calculation procedure comprises:
To be N * N zone with this signal halves that this frequency field is represented, wherein N be the integer greater than 1; And
Calculate this signal energy in zone in addition, upper left corner K * K zone in this N * N zone, wherein K is the positive integer less than N.
4. the detection method of controlling thing according to claim 1 is characterized in that, this analytical procedure comprises:
Be positioned at a quantity of the signal of medium-high frequency signal area in this signal that calculating is represented with this frequency field;
This quantity that relatively calculates and a threshold value;
When this quantity during, produce this first signal greater than this threshold value; And
When this quantity is not more than this threshold value, produce this secondary signal.
5. the detection method of controlling thing according to claim 1 is characterized in that, this frequency transform function is one of in DFT function, DCT function and the DWT function.
6. the detection method of controlling thing according to claim 1 is characterized in that, also comprises:
When on being positioned at this operation interface, existing this to control thing with this fingerprint characteristic, respond this first signal utilization capture this image calculate this and control the displacement of thing.
7. the detection method of controlling thing according to claim 1 is characterized in that, also comprises:
When on being positioned at this operation interface, existing this to control thing, utilize this first signal to cause the displacement transducer output of this contactor control device to control the displacement of the motion track of thing corresponding to this with this fingerprint characteristic.
8. a contactor control device is characterized in that, comprising:
One operation interface;
One image sensor is to should the operation interface setting, to capture the image on this operation interface;
One processing unit connects this image sensor, with capture through analysis the frequency content of this image judge whether to have on this operation interface to have one of a fingerprint characteristic and control thing; And
One track detection device connects this processing unit, controls the motion track of thing to be detected on this that have this fingerprint characteristic on this operation interface.
9. contactor control device according to claim 8; It is characterized in that; This processing unit utilize a frequency transform function will capture the signal of this video conversion for representing with a frequency field, and judge that according to a signal energy that is positioned at a medium-high frequency signal area in this signal of representing with this frequency field whether having with this fingerprint characteristic this on this operation interface controls thing.
10. contactor control device according to claim 9; It is characterized in that; This processing unit will be positioned at this signal energy of this medium-high frequency signal area and compare with a threshold value; And, be identified in and exist this to control thing on this operation interface with this fingerprint characteristic when this signal energy during greater than this threshold value.
11. contactor control device according to claim 8; It is characterized in that; This processing unit utilize a frequency transform function will capture the signal of this video conversion for representing with a frequency field, and judge that according to the quantity that is positioned at a signal of a medium-high frequency signal area in this signal of representing with this frequency field whether having with this fingerprint characteristic this on this operation interface controls thing.
12. contactor control device according to claim 11; It is characterized in that; This processing unit will be positioned at this quantity of this signal of this medium-high frequency signal area and compare with a threshold value; And, be identified in and exist this to control thing on this operation interface with this fingerprint characteristic when this quantity during greater than this threshold value.
13. contactor control device according to claim 8 is characterized in that, when on this operation interface, existing with this fingerprint characteristic this to control thing, this processing unit activates this track detection device, to detect the motion track that this controls thing.
14. contactor control device according to claim 8 is characterized in that, this track detection device is a displacement transducer.
15. contactor control device according to claim 8 is characterized in that, this track detection device is an image sensor.
16. a contactor control device is characterized in that, comprising:
One operation interface;
One image sensor is to should the operation interface setting, to capture the image on this operation interface; And
One processing unit; Connect this image sensor; With capture through analysis the frequency content of this image judge whether to have on this operation interface to have one of a fingerprint characteristic and control thing; And when on this operation interface, existing this to control thing with this fingerprint characteristic, utilize capture this image calculate this and control the displacement of thing.
17. contactor control device according to claim 16; It is characterized in that; This processing unit utilize a frequency transform function will capture the signal of this video conversion for representing with a frequency field, and judge that according to a signal energy that is positioned at the medium-high frequency signal area in this signal of representing with this frequency field whether having with this fingerprint characteristic this on this operation interface controls thing.
18. contactor control device according to claim 17; It is characterized in that; This processing unit will be positioned at this signal energy of this medium-high frequency signal area and compare with a threshold value; And, be identified in and exist this to control thing on this operation interface with this fingerprint characteristic when this signal energy during greater than this threshold value.
19. contactor control device according to claim 16; It is characterized in that; This processing unit utilize a frequency transform function will capture the signal of this video conversion for representing with a frequency field, and judge that according to the quantity that is positioned at this signal of a medium-high frequency signal area in this signal of representing with this frequency field whether having with this fingerprint characteristic this on this operation interface controls thing.
20. contactor control device according to claim 19; It is characterized in that; This processing unit will be positioned at this quantity of this signal of this medium-high frequency signal area and compare with a threshold value; And, be identified in and exist this to control thing on this operation interface with this fingerprint characteristic when this quantity during greater than this threshold value.
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| CN201110057934.5A CN102654802B (en) | 2011-03-04 | 2011-03-04 | Detecting method for manipulation object and touch control device |
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| CN201110057934.5A CN102654802B (en) | 2011-03-04 | 2011-03-04 | Detecting method for manipulation object and touch control device |
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| WO2000002187A1 (en) * | 1998-07-01 | 2000-01-13 | Deluca Michael J | Stereoscopic user interface method and apparatus |
| US20060241864A1 (en) * | 2005-04-22 | 2006-10-26 | Outland Research, Llc | Method and apparatus for point-and-send data transfer within an ubiquitous computing environment |
| US20080266257A1 (en) * | 2007-04-24 | 2008-10-30 | Kuo-Ching Chiang | User motion detection mouse for electronic device |
| CN101339478A (en) * | 2007-07-02 | 2009-01-07 | 泰科电子有限公司 | Method and system for detecting touch events based on magnitude ratios |
| CN201383133Y (en) * | 2008-12-09 | 2010-01-13 | 上海纽发利商贸有限公司 | Photo-induction touch panel device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2000002187A1 (en) * | 1998-07-01 | 2000-01-13 | Deluca Michael J | Stereoscopic user interface method and apparatus |
| US20060241864A1 (en) * | 2005-04-22 | 2006-10-26 | Outland Research, Llc | Method and apparatus for point-and-send data transfer within an ubiquitous computing environment |
| US20080266257A1 (en) * | 2007-04-24 | 2008-10-30 | Kuo-Ching Chiang | User motion detection mouse for electronic device |
| CN101339478A (en) * | 2007-07-02 | 2009-01-07 | 泰科电子有限公司 | Method and system for detecting touch events based on magnitude ratios |
| CN201383133Y (en) * | 2008-12-09 | 2010-01-13 | 上海纽发利商贸有限公司 | Photo-induction touch panel device |
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