CN108984039A - A kind of electronic whiteboard device and its display methods - Google Patents
A kind of electronic whiteboard device and its display methods Download PDFInfo
- Publication number
- CN108984039A CN108984039A CN201810876460.9A CN201810876460A CN108984039A CN 108984039 A CN108984039 A CN 108984039A CN 201810876460 A CN201810876460 A CN 201810876460A CN 108984039 A CN108984039 A CN 108984039A
- Authority
- CN
- China
- Prior art keywords
- pressure
- point
- light
- light source
- sensitive display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 49
- 238000001514 detection method Methods 0.000 claims description 23
- 230000004927 fusion Effects 0.000 claims description 6
- 230000035945 sensitivity Effects 0.000 claims 1
- 230000007812 deficiency Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a kind of electronic whiteboard devices, including frame, for installing electronic whiteboard components；Pressure-sensitive display is mounted in frame, for showing image；Pressure sensor group is mounted on the back side of pressure-sensitive display, for detecting the pressure state on pressure-sensitive display surface；First transmitting light source, is mounted on the edge of frame, for emitting the first light；First light source receiver is mounted on the edge of frame, for receiving the first light；Second transmitting light source, is mounted on the edge of frame, for emitting the second light, the first light is different from the wavelength of the second light；Second light source receiver is mounted on the edge of frame, for receiving the second light；Controller is mounted on the back side of frame, positions for the Image display position to electronic whiteboard.The present invention can improve the deficiencies in the prior art, improve the locating and displaying precision of electronic whiteboard.
Description
Technical field
The present invention relates to a kind of electronic whiteboard, especially a kind of electronic whiteboard device and its display methods.
Background technique
Electronic whiteboard is a kind of interactive display equipment widely used in recent years, and displaying principle is to pass through positioning system
The operation equipment that user holds is positioned, so that corresponding display operation is carried out in position location, to simulate general
The effect of writing or computer mouse clicking operation on logical blank.Existing electronic white board equipment, usually uses optical alignment
Element positions the blocking of light using operation equipment, and this positioning method precision is not high, and user is caused to operate
In the process, usually there is the problem of maloperation, user experience is bad.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of electronic whiteboard device and its display methods, are able to solve the prior art
Deficiency, improve the locating and displaying precision of electronic whiteboard.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
A kind of electronic whiteboard device, including,
Frame, for installing electronic whiteboard components；
Pressure-sensitive display is mounted in frame, for showing image；
Pressure sensor group is mounted on the back side of pressure-sensitive display, for detecting the pressure state on pressure-sensitive display surface；
First transmitting light source, is mounted on the edge of frame, for emitting the first light；
First light source receiver is mounted on the edge of frame, for receiving the first light；
Second transmitting light source, is mounted on the edge of frame, and for the second light of transmitting, the wavelength of the first light and the second light is not
Together；
Second light source receiver is mounted on the edge of frame, for receiving the second light；
Second transmitting light source and second light source receiver are located at the outside of first light source receiver and first light source receiver；
Controller is mounted on the back side of frame, positions for the Image display position to electronic whiteboard.
A kind of display methods of above-mentioned electronic whiteboard device, comprising the following steps:
A, the first transmitting light source and the second transmitting light source are simultaneously emitted by detection light, and first light source receiver and second light source receive
Device receives corresponding light；
B, clicking operation is carried out on pressure-sensitive display surface using operating pen, operating pen is by the first light of corresponding position and second
Light is blocked, and light changes based on the received for first light source receiver and second light source receiver, determines operating pen
Blocking position；
C, controller establishes three-dimensional system of coordinate on pressure-sensitive display surface, marks operating pen for the first light in three-dimensional system of coordinate
The blocking position of line and the second light；
D, two blocking positions marked in three-dimensional system of coordinate are modified, determine operating pen three according to two blocking positions
Tie up the position and attitude in coordinate system；
E, the pressure shape on the pressure-sensitive display surface for obtaining the operating pen position and attitude obtained in step D and pressure sensor group
State compares and analyzes, and is modified to position and attitude of the operating pen in three-dimensional system of coordinate, and finally determines that operating pen is being pressed
Feel the contact position on display screen, pressure-sensitive display carries out corresponding display operation on contact position.
Preferably, include the following steps in step D,
D1, the outer profile for determining two blocking positions；
D2, blocking position is deformed by spheroidal or elliposoidal according to the outer profile of blocking position；
D3, choose deformation after blocking position the centre of sphere carry out line, take by line and with 2 perpendicular of pressure-sensitive display
Plane as a reference plane, is modified line according to the size of reference planes two sides blocking position volume, realizes with reference to flat
Face two sides blocking position volume is equal, and the direction of revised line is position and attitude of the operating pen in three-dimensional system of coordinate.
Preferably, blocking position is carried out by deformation according to the outer profile of blocking position and is included the following steps in step D2,
D21, several characteristic points are chosen in the outer profile of blocking position, adjacent characteristic point is attached using line segment；
D22, it will be smoothed between each line segment, form a smooth closed surface；
D23, a straight line perpendicular to characteristic point position on closed surface is done in each characteristic point；
D24, intersection point of each straight line in closed surface is marked, it is right using the straight line quantity passed through on intersection point as weighted value
Each intersection point is weighted fusion, obtains a final fusion intersection point；
D25, to merge intersection point as the deformed centre of sphere, carry out respectively different sphere diameters spheroidal deformation and elliposoidal deformation survey
Examination is chosen and carries out final deformation operation with the higher deformation mode of closed surface registration and shape.
Preferably, in step D21, selected characteristic point the following steps are included:
D211, characteristic point pre-selected zone is established in the outer profile of blocking position；
D212, the coordinate points in characteristic point pre-selected zone are traversed, is chosen for spy when coordinate points meet the following conditions simultaneously
Sign point,
A, using this coordinate points as the centre of sphere, spherical detection zone is done, the outer profile in spherical detection zone is shiny surface；Spherical detection zone
Radius is 1% of spacing between the maximum two o'clock of blocking position outer profile distance；
B, this spherical detection zone is located at 50%~80% that the region inside blocking position outer profile accounts for entire spherical detection zone；
C, there is no other feature point in this spherical detection zone.
Preferably, include the following steps in step E,
E1, using the intersection point on the extended line of the line in step D3 and pressure-sensitive display surface as operating pen and pressure-sensitive display table
The calculating contact point in face；
E2, the pressure state 3 dimensional drawing for establishing pressure-sensitive display surface fit pressure according to pressure state 3 dimensional drawing
Power source point；
E3, calculating contact point obtained in step E1 is placed in the pressure state 3 dimensional drawing that step E2 is established, will be calculated
Contact point and pressure source point carry out weighted fitting；
E4, the pressure state 3 dimensional drawing after fitting is inversely derived using match point, if the pressure state three-dimensional after fitting is vertical
Pressure state 3 dimensional drawing in body figure and step E2 is linearly related, then match point is determined as operating pen in pressure-sensitive display
On contact position, otherwise return step E changes fitting weight, re-starts weighted fitting.
Preferably, calculating the initial weight value of contact point at a distance from calculating contact point and pressure source point in step E3
Directly proportional, the initial weight value of pressure source point is inversely proportional at a distance from calculating contact point and pressure source point.
Brought beneficial effect is by adopting the above technical scheme: the present invention passes through two groups of light source positioning systems of setting,
Operating pen is positioned using three-dimensional localization structure, influence of the external disturbance for positioning can be effectively reduced.It is fixed in three-dimensional
During position, by optimizing light detection procedure, the positioning accuracy of light-source system is effectively increased, then matches resultant pressure again
The amendment of detection system finally realizes the accurate positioning for operating pen.
Detailed description of the invention
Fig. 1 is the structure chart of a specific embodiment of the invention.
Fig. 2 is the structure chart of light source transmitting terminal in a specific embodiment of the invention.
Fig. 3 is the structure chart of light source receiving end in a specific embodiment of the invention.
In figure: 1, frame；2, pressure-sensitive display；3, pressure sensor group；4, the first transmitting light source；5, first light source receives
Device；6, the second transmitting light source；7, second light source receiver；8, controller.
Specific embodiment
The standardized element used in the present invention can commercially, and shaped piece is according to specification and attached drawing
Record can carry out customized, and the specific connection type of each part is all made of in the prior art mature bolt, rivet, weldering
The conventional means such as connect, paste, this will not be detailed here.
Referring to Fig.1-3, a specific embodiment of the invention includes,
Frame 1, for installing electronic whiteboard components；
Pressure-sensitive display 2 is mounted in frame 1, for showing image；
Pressure sensor group 3 is mounted on the back side of pressure-sensitive display 2, for detecting the pressure state on 2 surface of pressure-sensitive display；
First transmitting light source 4, is mounted on the edge of frame 1, for emitting the first light；
First light source receiver 5 is mounted on the edge of frame 1, for receiving the first light；
Second transmitting light source 6, is mounted on the edge of frame 1, for emitting the second light, the wavelength of the first light and the second light
It is different；
Second light source receiver 7 is mounted on the edge of frame 1, for receiving the second light；
Second transmitting light source 6 and second light source receiver 7 are located at the outside of first light source receiver 5 and first light source receiver 5；
Controller 8 is mounted on the back side of frame 1, positions for the Image display position to electronic whiteboard.
A kind of display methods of above-mentioned electronic whiteboard device, comprising the following steps:
A, the first transmitting light source 4 and the second transmitting light source 6 are simultaneously emitted by detection light, first light source receiver 5 and second light source
Receiver 7 receives corresponding light；
B, clicking operation is carried out on 2 surface of pressure-sensitive display using operating pen, operating pen is by the first light of corresponding position and the
Two light are blocked, and light changes based on the received for first light source receiver 5 and second light source receiver 7, determine behaviour
Make the blocking position of pen；
C, controller 8 establishes three-dimensional system of coordinate on 2 surface of pressure-sensitive display, marks operating pen for first in three-dimensional system of coordinate
The blocking position of light and the second light；
D, two blocking positions marked in three-dimensional system of coordinate are modified, determine operating pen three according to two blocking positions
Tie up the position and attitude in coordinate system；
E, the pressure on 2 surface of pressure-sensitive display for obtaining the operating pen position and attitude obtained in step D and pressure sensor group 3
State compares and analyzes, and is modified to position and attitude of the operating pen in three-dimensional system of coordinate, and finally determines that operating pen exists
Contact position on pressure-sensitive display 2, pressure-sensitive display 2 carry out corresponding display operation on contact position.
In step D, include the following steps,
D1, the outer profile for determining two blocking positions；
D2, blocking position is deformed by spheroidal or elliposoidal according to the outer profile of blocking position；
D3, choose deformation after blocking position the centre of sphere carry out line, take by line and with 2 perpendicular of pressure-sensitive display
Plane as a reference plane, is modified line according to the size of reference planes two sides blocking position volume, realizes with reference to flat
Face two sides blocking position volume is equal, and the direction of revised line is position and attitude of the operating pen in three-dimensional system of coordinate.
In step D2, blocking position is carried out by deformation according to the outer profile of blocking position and is included the following steps,
D21, several characteristic points are chosen in the outer profile of blocking position, adjacent characteristic point is attached using line segment；
D22, it will be smoothed between each line segment, form a smooth closed surface；
D23, a straight line perpendicular to characteristic point position on closed surface is done in each characteristic point；
D24, intersection point of each straight line in closed surface is marked, it is right using the straight line quantity passed through on intersection point as weighted value
Each intersection point is weighted fusion, obtains a final fusion intersection point；
D25, to merge intersection point as the deformed centre of sphere, carry out respectively different sphere diameters spheroidal deformation and elliposoidal deformation survey
Examination is chosen and carries out final deformation operation with the higher deformation mode of closed surface registration and shape.
In step D21, selected characteristic point the following steps are included:
D211, characteristic point pre-selected zone is established in the outer profile of blocking position；
D212, the coordinate points in characteristic point pre-selected zone are traversed, is chosen for spy when coordinate points meet the following conditions simultaneously
Sign point,
A, using this coordinate points as the centre of sphere, spherical detection zone is done, the outer profile in spherical detection zone is shiny surface；Spherical detection zone
Radius is 1% of spacing between the maximum two o'clock of blocking position outer profile distance；
B, this spherical detection zone is located at 50%~80% that the region inside blocking position outer profile accounts for entire spherical detection zone；
C, there is no other feature point in this spherical detection zone.
In step E, include the following steps,
E1, using the intersection point on the extended line of the line in step D3 and 2 surface of pressure-sensitive display as operating pen and pressure-sensitive display 2
The calculating contact point on surface；
E2, the pressure state 3 dimensional drawing for establishing 2 surface of pressure-sensitive display fit pressure according to pressure state 3 dimensional drawing
Power source point；
E3, calculating contact point obtained in step E1 is placed in the pressure state 3 dimensional drawing that step E2 is established, will be calculated
Contact point and pressure source point carry out weighted fitting；
E4, the pressure state 3 dimensional drawing after fitting is inversely derived using match point, if the pressure state three-dimensional after fitting is vertical
Pressure state 3 dimensional drawing in body figure and step E2 is linearly related, then match point is determined as operating pen in pressure-sensitive display
Contact position on 2, otherwise return step E, changes fitting weight, re-starts weighted fitting.
In step E3, the initial weight value for calculating contact point is directly proportional at a distance from calculating contact point and pressure source point, pressure
The initial weight value of power source point is inversely proportional at a distance from calculating contact point and pressure source point.
Determine operating pen after the contact position on pressure-sensitive display 2, according to for calculate contact point amendment data,
Feedback modifiers are carried out to each intersection point weighted value in step D24, to improve the accuracy merging intersection point in step D24 and obtaining.
In the description of the present invention, it is to be understood that, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is merely for convenience of the description present invention, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. a kind of electronic whiteboard device, it is characterised in that: including,
Frame (1), for installing electronic whiteboard components；
Pressure-sensitive display (2) is mounted in frame (1), for showing image；
Pressure sensor group (3), is mounted on the back side of pressure-sensitive display (2), for detecting the pressure on pressure-sensitive display (2) surface
State；
First transmitting light source (4), is mounted on the edge of frame (1), for emitting the first light；
First light source receiver (5), is mounted on the edge of frame (1), for receiving the first light；
Second transmitting light source (6), is mounted on the edge of frame (1), for emitting the second light, the first light and the second light
Wavelength is different；
Second light source receiver (7), is mounted on the edge of frame (1), for receiving the second light；
Second transmitting light source (6) and second light source receiver (7) are located at first light source receiver (5) and first light source receiver
(5) outside；
Controller (8), is mounted on the back side of frame (1), positions for the Image display position to electronic whiteboard.
2. a kind of display methods of electronic whiteboard device described in claim 1, it is characterised in that the following steps are included:
A, the first transmitting light source (4) and second emits light source (6) and is simultaneously emitted by detection light, first light source receiver (5) and the
Two light source receivers (7) receive corresponding light；
B, carry out clicking operation on pressure-sensitive display (2) surface using operating pen, operating pen by the first light of corresponding position and
Second light is blocked, and light changes based on the received for first light source receiver (5) and second light source receiver (7),
Determine the blocking position of operating pen；
C, controller (8) establishes three-dimensional system of coordinate on pressure-sensitive display (2) surface, in three-dimensional system of coordinate mark operating pen for
The blocking position of first light and the second light；
D, two blocking positions marked in three-dimensional system of coordinate are modified, determine operating pen three according to two blocking positions
Tie up the position and attitude in coordinate system；
E, by pressure-sensitive display (2) surface of the operating pen position and attitude obtained in step D and pressure sensor group (3) acquisition
Pressure state compares and analyzes, and is modified to position and attitude of the operating pen in three-dimensional system of coordinate, and finally determines operation
Contact position of the pen on pressure-sensitive display (2), pressure-sensitive display (2) carry out corresponding display operation on contact position.
3. the display methods of electronic whiteboard device according to claim 2, it is characterised in that: in step D, including following step
Suddenly,
D1, the outer profile for determining two blocking positions；
D2, blocking position is deformed by spheroidal or elliposoidal according to the outer profile of blocking position；
D3, choose deformation after blocking position the centre of sphere carry out line, take by line and with 2 perpendicular of pressure-sensitive display
Plane as a reference plane, is modified line according to the size of reference planes two sides blocking position volume, realizes with reference to flat
Face two sides blocking position volume is equal, and the direction of revised line is position and attitude of the operating pen in three-dimensional system of coordinate.
4. the display methods of electronic whiteboard device according to claim 3, it is characterised in that: in step D2, according to blocking
Blocking position is carried out deformation and included the following steps by the outer profile of position,
D21, several characteristic points are chosen in the outer profile of blocking position, adjacent characteristic point is attached using line segment；
D22, it will be smoothed between each line segment, form a smooth closed surface；
D23, a straight line perpendicular to characteristic point position on closed surface is done in each characteristic point；
D24, intersection point of each straight line in closed surface is marked, it is right using the straight line quantity passed through on intersection point as weighted value
Each intersection point is weighted fusion, obtains a final fusion intersection point；
D25, to merge intersection point as the deformed centre of sphere, carry out respectively different sphere diameters spheroidal deformation and elliposoidal deformation survey
Examination is chosen and carries out final deformation operation with the higher deformation mode of closed surface registration and shape.
5. the display methods of electronic whiteboard device according to claim 4, it is characterised in that: in step D21, selected characteristic
Point the following steps are included:
D211, characteristic point pre-selected zone is established in the outer profile of blocking position；
D212, the coordinate points in characteristic point pre-selected zone are traversed, is chosen for spy when coordinate points meet the following conditions simultaneously
Sign point,
A, using this coordinate points as the centre of sphere, spherical detection zone is done, the outer profile in spherical detection zone is shiny surface；Spherical detection zone
Radius is 1% of spacing between the maximum two o'clock of blocking position outer profile distance；
B, this spherical detection zone is located at 50%~80% that the region inside blocking position outer profile accounts for entire spherical detection zone；
C, there is no other feature point in this spherical detection zone.
6. the display methods of electronic whiteboard device according to claim 2, it is characterised in that: in step E, including following step
Suddenly,
E1, the intersection point on the extended line of the line in step D3 and pressure-sensitive display (2) surface is shown as operating pen and pressure sensitivity
Shield the calculating contact point on (2) surface；
E2, the pressure state 3 dimensional drawing for establishing pressure-sensitive display (2) surface, fit according to pressure state 3 dimensional drawing
Pressure source point；
E3, calculating contact point obtained in step E1 is placed in the pressure state 3 dimensional drawing that step E2 is established, will be calculated
Contact point and pressure source point carry out weighted fitting；
E4, the pressure state 3 dimensional drawing after fitting is inversely derived using match point, if the pressure state three-dimensional after fitting is vertical
Pressure state 3 dimensional drawing in body figure and step E2 is linearly related, then match point is determined as operating pen in pressure-sensitive display
(2) contact position on, otherwise return step E, changes fitting weight, re-starts weighted fitting.
7. the display methods of electronic whiteboard device according to claim 6, it is characterised in that: in step E3, calculate contact
The initial weight value of point is directly proportional at a distance from calculating contact point and pressure source point, and initial weight value and the calculating of pressure source point connect
The distance of contact and pressure source point is inversely proportional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810876460.9A CN108984039B (en) | 2018-08-03 | 2018-08-03 | Electronic whiteboard device and display method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810876460.9A CN108984039B (en) | 2018-08-03 | 2018-08-03 | Electronic whiteboard device and display method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108984039A true CN108984039A (en) | 2018-12-11 |
| CN108984039B CN108984039B (en) | 2021-04-09 |
Family
ID=64555207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810876460.9A Active CN108984039B (en) | 2018-08-03 | 2018-08-03 | Electronic whiteboard device and display method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108984039B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050128190A1 (en) * | 2003-12-11 | 2005-06-16 | Nokia Corporation | Method and device for detecting touch pad input |
| CN101086694A (en) * | 2006-06-09 | 2007-12-12 | 巨豪实业股份有限公司 | Laser type touch-controlled module coordinate sensing device |
| CN101965549A (en) * | 2008-03-12 | 2011-02-02 | 艾勒博科技股份有限公司 | Touch sensor device and pointing coordinate determination method thereof |
| US20120098753A1 (en) * | 2010-10-22 | 2012-04-26 | Pq Labs, Inc. | System and method for providing multi-dimensional touch input vector |
| CN102591464A (en) * | 2012-01-13 | 2012-07-18 | 吴岳忠 | Laser virtual keyboard |
| CN104777946A (en) * | 2009-02-15 | 2015-07-15 | 内奥诺德公司 | Light-based touch screen |
| CN105183238A (en) * | 2014-06-20 | 2015-12-23 | 鸿合科技有限公司 | Handwriting erasing method based on infrared whiteboard, handwriting erasing device and infrared whiteboard thereof |
| CN105320358A (en) * | 2014-06-20 | 2016-02-10 | 鸿合科技有限公司 | Touch trace display method and device based on infrared white plate and infrared white plate |
| JP2016126710A (en) * | 2015-01-08 | 2016-07-11 | シャープ株式会社 | Touch panel device |
| US20160266722A1 (en) * | 2013-03-11 | 2016-09-15 | Hitachi Maxell, Ltd. | Operation detection device, operation detection method and projector |
| CN106406638A (en) * | 2016-09-06 | 2017-02-15 | 青岛海信电器股份有限公司 | Touch point outline generation method and device |
| CN106598355A (en) * | 2016-11-23 | 2017-04-26 | 杭州碳诺电子科技有限公司 | Handwriting board device and method capable of identifying a plurality of characteristics of objects |
| CN106896966A (en) * | 2017-03-15 | 2017-06-27 | 青岛海信电器股份有限公司 | Contact position and the method and apparatus of shape information storage in infrared touch panel |
| CN106990875A (en) * | 2017-02-07 | 2017-07-28 | 江苏碳诺显示技术有限公司 | Realize large scale and improve the handwriting device of handwriting recognition efficiency |
| CN107506094A (en) * | 2014-05-30 | 2017-12-22 | 湖州佳格电子科技股份有限公司 | A kind of touch-screen touch area localization method |
| CN107704125A (en) * | 2017-09-20 | 2018-02-16 | 上海斯雷迪数字科技有限公司 | Touch location device and 3D touches interactive system |
-
2018
- 2018-08-03 CN CN201810876460.9A patent/CN108984039B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050128190A1 (en) * | 2003-12-11 | 2005-06-16 | Nokia Corporation | Method and device for detecting touch pad input |
| CN101086694A (en) * | 2006-06-09 | 2007-12-12 | 巨豪实业股份有限公司 | Laser type touch-controlled module coordinate sensing device |
| CN101965549A (en) * | 2008-03-12 | 2011-02-02 | 艾勒博科技股份有限公司 | Touch sensor device and pointing coordinate determination method thereof |
| CN104777946A (en) * | 2009-02-15 | 2015-07-15 | 内奥诺德公司 | Light-based touch screen |
| US20120098753A1 (en) * | 2010-10-22 | 2012-04-26 | Pq Labs, Inc. | System and method for providing multi-dimensional touch input vector |
| CN102591464A (en) * | 2012-01-13 | 2012-07-18 | 吴岳忠 | Laser virtual keyboard |
| US20160266722A1 (en) * | 2013-03-11 | 2016-09-15 | Hitachi Maxell, Ltd. | Operation detection device, operation detection method and projector |
| CN107506094A (en) * | 2014-05-30 | 2017-12-22 | 湖州佳格电子科技股份有限公司 | A kind of touch-screen touch area localization method |
| CN105183238A (en) * | 2014-06-20 | 2015-12-23 | 鸿合科技有限公司 | Handwriting erasing method based on infrared whiteboard, handwriting erasing device and infrared whiteboard thereof |
| CN105320358A (en) * | 2014-06-20 | 2016-02-10 | 鸿合科技有限公司 | Touch trace display method and device based on infrared white plate and infrared white plate |
| JP2016126710A (en) * | 2015-01-08 | 2016-07-11 | シャープ株式会社 | Touch panel device |
| CN106406638A (en) * | 2016-09-06 | 2017-02-15 | 青岛海信电器股份有限公司 | Touch point outline generation method and device |
| CN106598355A (en) * | 2016-11-23 | 2017-04-26 | 杭州碳诺电子科技有限公司 | Handwriting board device and method capable of identifying a plurality of characteristics of objects |
| CN106990875A (en) * | 2017-02-07 | 2017-07-28 | 江苏碳诺显示技术有限公司 | Realize large scale and improve the handwriting device of handwriting recognition efficiency |
| CN106896966A (en) * | 2017-03-15 | 2017-06-27 | 青岛海信电器股份有限公司 | Contact position and the method and apparatus of shape information storage in infrared touch panel |
| CN107704125A (en) * | 2017-09-20 | 2018-02-16 | 上海斯雷迪数字科技有限公司 | Touch location device and 3D touches interactive system |
Non-Patent Citations (2)
| Title |
|---|
| BONGSHIN LEE等: "SketchInsight: Natural data exploration on interactive whiteboards leveraging pen and touch interaction", 《2015 IEEE PACIFIC VISUALIZATION SYMPOSIUM (PACIFICVIS)》 * |
| 韩晔珍: "面向移动终端的笔式力触觉交互技术研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108984039B (en) | 2021-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10416347B2 (en) | Locating system having a hand-held locating unit | |
| KR101560308B1 (en) | Method and electronic device for virtual handwritten input | |
| KR101954855B1 (en) | Use of intensity variations of light patterns for depth mapping of objects in a volume | |
| US8638984B2 (en) | Display of results of a measurement of workpieces as a function of the detection of the gesture of a user | |
| CN107478162B (en) | A kind of rack mounting coordinate system construction method | |
| CN106650701B (en) | Binocular vision-based obstacle detection method and device in indoor shadow environment | |
| CN103797446A (en) | Method for detecting motion of input body and input device using same | |
| CN103328959A (en) | Substrate inspecting apparatus, substrate inspecting system, and method for displaying image for checking substrate inspection results | |
| CN102016772A (en) | Interactive input system and illumination assembly therefor | |
| CN101952793A (en) | Touch screen adopting an optical module system using linear infrared emitters | |
| CN106527762A (en) | Cursor coordinate determining method, cursor coordinate determining device and mouse control system | |
| CN109916381A (en) | Push pipe automatic guiding system and method based on image procossing | |
| CN108510528A (en) | A kind of method and device of visible light and infrared image registration fusion | |
| CN114360043B (en) | Model parameter calibration method, sight tracking method, device, medium and equipment | |
| CN111508020B (en) | Cable three-dimensional position calculation method and device for fusing image and laser radar | |
| JP6528964B2 (en) | INPUT OPERATION DETECTING DEVICE, IMAGE DISPLAY DEVICE, PROJECTOR DEVICE, PROJECTOR SYSTEM, AND INPUT OPERATION DETECTING METHOD | |
| CN104516532A (en) | Method and apparatus for determining the pose of a light source using an optical sensing array | |
| CN107850425A (en) | Method for measuring artifact | |
| EP2592435A1 (en) | 3D location sensing system and method | |
| CN100359286C (en) | Method for improving laser measuring accuracy in image processing | |
| CN108984039A (en) | A kind of electronic whiteboard device and its display methods | |
| CN112528846A (en) | Evaluation method, device, equipment and storage medium for obstacle detection | |
| CN105468208A (en) | Electronic whiteboard trace tracking method and apparatus | |
| CN104296695B (en) | A kind of method for obtaining video camera spatial attitude | |
| US9323322B2 (en) | Interactive input system and method of detecting objects |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Xiaodong Inventor after: Zhang Lijiang Inventor before: Zhang Lijiang |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210323 Address after: 519000 room 1603, unit 2, building 23, No.1 Xingyuan Road, Xiangzhou District, Zhuhai City, Guangdong Province Applicant after: Zhuhai rainstorm Technology Co.,Ltd. Address before: 110326 huaniubao village, Hutai Town, Xinmin City, Shenyang City, Liaoning Province Applicant before: Zhang Lijiang |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |