CN100478861C

CN100478861C - Optical input device

Info

Publication number: CN100478861C
Application number: CNB2006100839445A
Authority: CN
Inventors: 简丞志; 郑智涌; 戴廷芸
Original assignee: Jiding Science & Technology Co Ltd
Current assignee: Jiding Science & Technology Co Ltd
Priority date: 2006-06-12
Filing date: 2006-06-12
Publication date: 2009-04-15
Anticipated expiration: 2026-06-12
Also published as: CN101089801A

Abstract

An optical input device is prepared as setting many identification patterns at the same plane on optical input board and using each identification pattern to represent its own unique position on said plane, fetching all identification patterns passed by sliding-movement trace of optical fetching unit on said optical input board, fetching actually a position point when an identification pattern is fetched by said fetching unit, collecting and processing each position point to corresponding electronic signal.

Description

Optical input device

Technical field

The present invention relates to electronic whiteboard and optical recognition, and also relates to the field of writing input board and touch pad in a utilization of the present invention.

Background technology

Electronic whiteboard be one can be with the product of writing on this electronic whiteboard that data-switching becomes electronic record of writing.Wherein, how will write data collection and get off, be the important subject of this product, disclosed several correlation techniques in several of exemplifying the subsequently patent case.

In Taiwan Province announces No. 395643 novel patent case, disclose a kind of large-scale plane suspension type scanister that is erected on the plate body (blackboard or blank), this device is to write the data of writing on this plate body by the optical scanning way collection.

In Taiwan Province announces No. 458334 novel patent case, disclose a kind of touch-screen of surperficial coated with conductive material, the centre of gravity place that pen contacts with this touch screen surface can be passed to a computing machine via a control circuit.

In Taiwan Province announces No. 526977 novel patent case, disclose a wireless electromagnetic induction pen and when writing, can launch oscillator signal and receive by a large-scale loop sensory panel.

In Taiwan Province announces No. 595552 novel patent case, disclose one and write and partly include writing layer, inductive layer (antenna array) and supporting bracket layer, when time writer when writing layer is write, this inductive layer can receive the electromagnetic signal of this time writer emission.

In Taiwan Province announces No. 392232 patent of invention case, disclose a kind of optical identification sign indicating number and be positioned on the shell of an integrated circuit (IC) chip, this optical identification sign indicating number can be read by the optical read ink recorder.Mention also in this case that the U.S.'s 5,389,770 cases refer to the method and the device of a special optical identification code and read code and decoding.

Summary of the invention

The object of the invention provides a kind of new optical input device for applying to products such as computer cursor position control plate and electronic whiteboard.This optical input device comprises an optics tablet and an optical pickup.An example of this optics tablet is to comprise a coding layer and a hyaline layer, and the end face of this coding layer is printed with many identification icons, each position of identification icon representative own, and have uniqueness.This hyaline layer is to coincide in the end face of this coding layer for this optical pickup slippage on it.

Another example of this optics tablet is further to comprise a bottom.This bottom then coincides in the bottom surface of this coding layer, and should the coding layer this as transparent, those identification icons of light color to can not interfering the data of writing of writing, and the coincide mask of this coding layer of this bottom has a color at this hyaline layer end face.

In any case, the sliding trajectory of this optical pickup on this hyaline layer the identification icon of process all can be read by this optical pickup.This optical pickup whenever reads an identification icon, just is equivalent to read a location point.This expression, each location point on the sliding trajectory of this optical pickup all can be collected and be processed into corresponding electronic signal.These electronic signals are again through the processing of a computer system and corresponding application software, this computer system just can be known the current position of this optical pickup according to those electronic signals, even can on its display, depict the sliding trajectory of this optical pickup, and it storage is become electronic record.

Description of drawings

Fig. 1 is the structural representation of a preferred embodiment of the present invention.

Fig. 2 is the structural representation of another preferred embodiment of the present invention.

Fig. 3 is the enlarged drawing of identification icon of the present invention.

Embodiment

Seeing also Fig. 1, is a preferred embodiment that discloses optical input device of the present invention, wherein discloses an optics tablet 1 and comprises a coding layer 10 and one hyaline layer 11.The end face of this coding layer 10 is printed with many identification icons 12, each position of identification icon 12 representatives own, and have uniqueness.The bottom surface of this hyaline layer 11 is the end faces in this coding layer 10 of coinciding, and the end face of this hyaline layer 11 is to be the hard even surface, with a convenient instrument slippage on it.For example making this hyaline layer 11 is a transparent glass glass plate, plastic plate or acrylic plate, with the optical pickup 2 that makes things convenient for one-pen shape in its end face slippage.Wherein, this optical pickup 2 comprises that a reading part 20 and a treatment circuit 21 are to connect this reading part 20.This reading part 20 can adopt CCD image pick-up device or CMOS image pick-up device, reads those identification icons 12 by optical mode.This treatment circuit 21 is that the result treatment that reads with this reading part 20 becomes electronic signal to be exported.

Because those identification icons 12 are the end faces at this coding layer 10 of gathering, thus need only this optical pickup 2 of end face slippage at this hyaline layer 11, sliding trajectory the identification icon 12 of process all can be read and be processed into electronic signal by this optical pickup 2.Moreover identification icon 12 all is unique, and represents itself position, and therefore, this optical pickup 2 whenever reads an identification icon 12, just is equivalent to read a location point, in other words conj.or perhaps a coordinate.This expression, each location point on the sliding trajectory of this optical pickup 2 all can be collected and be processed into corresponding electronic signal, these electronic signals are again through the processing of a computer system and corresponding application software, this computer system just can be known the current position of this optical pickup 2 according to those electronic signals, even can on its display, depict the sliding trajectory of this optical pickup 2, and it storage is become electronic record.For example, this optical pickup 2 is write an A word on the end face of this hyaline layer 11, so, will correspondingly show an A word on this display.Subsidiary one carries, and those identification icon 12 density are higher, and the resolution of resulting sliding trajectory is also just high in the future, based on experienced understanding, and the highest resolution that can cause 2400dpi of the density of those identification icons 12.

In brief, quite be fit to apply to the handwriting input panel products, also be fit to apply to the computer cursor position control plate, be widely used in touch pad on the mobile computer at present in order to replace at example shown in Figure 1.

Seeing also Fig. 2, is another preferred embodiment that shows optical input device of the present invention, and wherein disclosed optics tablet 1a comprises coding layer 10a, a hyaline layer 11a and a bottom (13).Be printed on many identification icons 12 equally on this coding layer 10a, this partly is the same with above-mentioned coding layer 10, and this hyaline layer 11a also the hyaline layer 11 with above-mentioned is the same, appearance is not given unnecessary details.Specifically this bottom 13 is the bottom surfaces in this coding layer 10a of coinciding, and the layer 10a that should encode is originally as transparent, the data of writing of writing of extremely can not interfering of light color of those identification icons 12 at this hyaline layer 11a end face, and the coincide mask of this coding layer 10a of this bottom 13 has a color, for example white or black.

Also disclose the optical pickup 2a of one-pen shape in Fig. 2, it comprises a reading part 20a and a treatment circuit 21a, and this is partly identical with above-mentioned optical pickup 2, holds and does not give unnecessary details.Difference is that it is adjacent with this reading part 20a that this optical pickup 2a more comprises one 22, this pen 22 be a kind of blank pen and can actual writing words or pattern on this hyaline layer 11a.

In the example of Fig. 2, the sliding trajectory of this optical pickup 2a on this hyaline layer 11a not only can be as being treated to electronic signal as the above-mentioned example and being stored by a computer system further and show, and this sliding trajectory also is depicted on this hyaline layer 11a practically because of this existence of 22.In brief, this example quite is fit to apply to the electronic whiteboard product.

See also Fig. 3, be the indivedual enlarged drawings that show an identification icon 12, point out that wherein this identification icon 12 is made of plurality of points 120, the diameter of every bit 120 is 40 μ m～65 μ m, and the spacing of any two adjacent points 120 is within 87.7 μ m ± 2%, and aligns.What deserves to be mentioned is, in example shown in Figure 2, these pen 22 meetings actual person's handwriting that stays on this hyaline layer 11a, therefore, the color of this identification icon 12 must be very shallow, in order to avoid influence the identification that naked eyes are identified the handwriting, but can not shallowly can't absorb to this optical pickup 2a.For reaching aforementioned purpose, best mode is to print these identification icons 12 with multicolored color printing method, and traditional colored printing method is four colour printing methods.Employed five chromatographs of this five colors color printing method are respectively that ground floor is that C layer, the second layer are that M layer, the 3rd layer are the K layer for Y layer, the 4th layer of Near-K layer, layer 5.The C layer is dark green printing ink (cyan ink), the M layer is carmetta printing ink (magenta ink), the Y layer is a Yellow ink, and the Near-K layer is dark green printing ink, carmetta printing ink, reaches the result that Yellow ink three equal proportion is mixed, and the K layer is the black ink with carbon.

Can recognize that from above-mentioned explanation the present invention is to use above-mentioned coding layer 10,10a to replace the electromagnetic induction layer in the prior art or presses inductive layer.Such way can make the structure of the product of utilization the technology of the present invention become quite simple, and simultaneously, cost of manufacture also can significantly reduce.In addition, the present invention is not because use electromagnetic wave, so there is not the problem of electromagnetic interference (EMI) yet.

In any case, anyone can obtain enough instructions from the explanation of above-mentioned example, and according to and recognize that the present invention has usability and the progressive on the industry really, and the present invention there is no identical in same field or the similar techniques exposure formerly has novelty, being that the present invention has really met the patent of invention important document, files an application in the whence in accordance with the law.

Claims

1, a kind of optical input device is characterized in that, comprising:

One optics tablet, comprise a coding layer, a hyaline layer and a bottom, this coding layer is originally as transparent, and have an end face and a bottom surface, this end face is printed with many identification icons, the position of each identification icon representative itself, and has a uniqueness, this hyaline layer has a bottom surface and coincides in the end face of this coding layer, this bottom is the bottom surface in this coding layer of coinciding, this identification icon of light color to can not interfering the data of writing of writing at this hyaline layer end face, and the coincide mask of this coding layer of this bottom has a color; And

One optical pickup comprises that a reading part and a treatment circuit are to connect this reading part, and this reading part is to read those identification icons with optical mode, and this treatment circuit is that the result treatment that reads with this reading part becomes electronic signal to be exported; Wherein this reading part be for CCD image pick-up device or CMOS image pick-up device one of them.

2, optical input device as claimed in claim 1, it is characterized in that, described optics tablet, wherein those identification icons are to form with five chromatograph printings, ground floor is that C layer, the second layer are that M layer, the 3rd layer are the K layer for Y layer, the 4th layer of Near-K layer, layer 5, the C layer is dark green printing ink (cyan ink), the M layer is carmetta printing ink (magenta ink), the Y layer is a Yellow ink, the Near-K layer is dark green printing ink, carmetta printing ink, reaches the result that Yellow ink three equal proportion is mixed, and the K layer is the black ink with carbon.

3, optical input device as claimed in claim 1 or 2 is characterized in that, described optics tablet, wherein each identification icon is made of several points, the diameter of every bit is 40 μ m～65 μ m, and the spacing of any two consecutive point is within 87.7 μ m ± 2%, and aligns.

4, optical input device as claimed in claim 1 is characterized in that, wherein this optical pickup comprises that more one is adjacent with this reading part.