CN103268714A - Reading video pen, method for utilizing reading video pen to read book, and book for reading video pen - Google Patents
Reading video pen, method for utilizing reading video pen to read book, and book for reading video pen Download PDFInfo
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- CN103268714A CN103268714A CN2013101450190A CN201310145019A CN103268714A CN 103268714 A CN103268714 A CN 103268714A CN 2013101450190 A CN2013101450190 A CN 2013101450190A CN 201310145019 A CN201310145019 A CN 201310145019A CN 103268714 A CN103268714 A CN 103268714A
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Abstract
The invention discloses a reading video pen, a method for utilizing the reading video pen to read a book, and the book for the reading video pen, and relates to the field of a reading machine. The reading video pen comprises a pen point and a pen holder. An image decoding circuit and a sensor head are arranged in the pen point, a communication interface, an audio/video decoding circuit, a storage, a pronouncing device and a signal generator are arranged in the pen point. The reading video pen is small in size, convenient to carry, and signals can be transmitted to a player in a wireless mode through the signal generator. The method for utilizing the reading video pen to read the book comprises the following steps that the storage corresponding to the reading video pen is firstly installed, the player is turned on or turned off, then the player is connected with a television through a TV wire, the pen point of the reading video pen is used for clicking images in the book, CMY images in the book correspond to two-dimensional code points, and therefore a three-dimensional mode which allows users and the book to interact can be achieved.
Description
Technical field
The present invention relates to a kind of reading video pen for point reader, this reading video pen is converted into video mode by the reading books with signal.The invention still further relates to the method for this reading video of use reading books and the special-purpose books of this method.
Background technology
At present, very popular a kind of new reading mode on the market, it is the reading mode, be a kind of novel books that can sounding, namely printed additional the stealthy ins and outs that is associated with the specific sound file at common paper, only need just can allow books " lift up one's voice " with the literal or the picture that are printed on stealthy ins and outs in the supporting talking pen clicking point reading.China Patent No. is that CN200920110704.9 discloses a kind of point reader, after controller detects click location on the teaching material by locating device, call in the data-carrier store voice corresponding with the content of the click location of teaching material with/: or video data, and transfer to playing device by data transmission interface.When adopting the teaching material of this technical scheme on the reading point reader, can play the corresponding voice of textbook content or video information with institute's reading at playing devices such as computing machine or televisors.But the point reader volume of this structure is bigger, and point reader is necessary and playing device passes through wired connection, both has been unfavorable for installing that it was also very inconvenient to carry.
China Patent No. is that CN201010122524.X discloses a kind of click-reading method of click-reading machine based on video image, and method step is: (1) obtains the video image of talking pen and books in real time with video frequency pick-up head; (2) utilize the nib touch-switch of talking pen, and this image is input in the microprocessor; (3) the books edge contour is proofreaied and correct; (4) set up the books coordinate system; (5) adopt largest connected territory method to obtain the shaft-like feature of talking pen; (6) according to the shaft-like feature of talking pen, utilize the line scanning method to obtain the pen tip position of talking pen; (7) utilize the pixel value of books length and width in the length and width value of known books and the image, image coordinate is demarcated; (8) under the books coordinate system, utilize calibration result to calculate the nib coordinate of talking pen; (9) thus realized point reader reading based on video image.This scheme utilizes video frequency pick-up head, talking pen and microprocessor to realize the reading function of point reader, utilize largest connected territory method effectively to get rid of the interference of the noise behind the image binaryzation and other non-target objects, have easy to carry, versatility good, the reading advantage of high precision, but this reading method step is comparatively loaded down with trivial details, cost is higher, and can only be applicable to the sound type point reader.
Summary of the invention
Technical matters to be solved by this invention provides a kind of volume reading video pen for the reading books little and easy to carry.Another technical matters that will solve of the present invention is that a kind of method of this reading video reading books and a kind of special-purpose books of this method of adopting also will be provided in addition.
In order to realize purpose of the present invention, a kind of reading video pen provided by the invention comprises nib and penholder, and described nib is connected with penholder, also comprises:
Be used for the sensing head that induction is printed on the stealthy sign indicating number of OID on paper or his medium of its person, described sensing head is located in the nib;
The image decoding circuit that is used for identity value is arranged in the described nib and with described sensing head and is connected;
The communication interface that is used for the transmission code value is arranged in the described penholder and with described image decoding circuit and is connected;
Be used for calling the audio/video decoding circuit of an interior voice document, it is interior and be connected with described communication interface to be arranged on described penholder.
Described audio/video decoding circuit is connected with reservoir, and described reservoir is connected with pronunciation device and signal generator respectively, and described pronunciation device and signal generator are connected on the both sides inwall of penholder.
Preferably, described sensing head comprises: the CMOS camera that is used for the stealthy sign indicating number of the interior OID of click on area on the identification books;
The stealthy sign indicating number of the OID picture that is used for that the CMOS camera is taken converts the optical scanning head of corresponding code value to, and described optical scanning head is connected with the CMOS camera.
Be used for the infrared LEDs of emission infrared penetration CMYK printing ink, described infrared LEDs is connected with infrared controller.
Preferably, the master-oscillator of described signal generator is RC formula oscillator or beat frequency oscillator.
Preferably, described reservoir is the USB storage external.
Beneficial effect of the present invention is: this reading video handwriting long-pending little, be easy to carry, and can signal wireless be transferred to player by signal generator, easy for installation, sensing head can be known the various information that two-dimension code that contents such as any literal of identification on the paper, picture, numeral are hidden contains by infrared facility and CMOS camera, the USB storage external can be according to using needs transposing voice document content.
A kind of method of using the reading reading of this reading video simultaneously provided by the invention comprises the steps:
A installs corresponding reservoir in the reading video pen;
B opens or closes player;
C, above-mentioned steps links to each other by the TV line player if open player again with televisor;
D is with the image on the nib click books of reading video pen.
This reading method is very easy, has added three-dimensional animation video in traditional reading method, improved the interesting and rich of books reading greatly, and operating cost is low, easy operating.
While a kind of special-purpose books that use in this reading video reading books method provided by the invention, comprise paper, be printed on the CMY picture and text on the described paper, also be provided with the two-dimension code layer between described paper and the CMY picture and text, described two-dimension code layer is made up of some square two-dimentional code-points, and this special use books surface is as good as with general book, wall chart, is easy to carry, and by this kind integrated design, rational in infrastructure, good stability.
Description of drawings
Fig. 1 is the front view of reading video pen of the present invention.
Fig. 2 is the front view of the nib of reading video pen shown in Figure 1.
Fig. 3 has described the present invention for signal and has used the step of a reading video reading books as shown in Figure 1.
Fig. 4 is the structural representation of special-purpose books shown in Figure 3.
Fig. 5 is the vertical view of two-dimension code layer shown in Figure 4.
Comprise: 1-nib, 2-penholder, 3-pronunciation device, 4-signal generator, the 5-reservoir, 6-audio/video decoding circuit, 7-communication interface, 8-sensing head, the 9-image decoding circuit, 10-optical scanning head, 11-CMOS camera, 12-infrared controller, the 13-infrared LEDs, 14-CMY picture and text, 15-two-dimension code layer, 16-paper, 17-two dimension code-point, 101-reading video pen, 102-player, the 103-TV line, 104-televisor, 105-books.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further details.
Fig. 1 is the front view of reading video pen of the present invention, and Fig. 2 is the front view of the nib of reading video pen shown in Figure 1.Reading video pen comprises nib 1 and penholder 2, and nib 1 is connected with penholder 2.Be provided with the sensing head 8 that is printed on the stealthy sign indicating number of OID on paper or his medium of its person for induction and reach the image decoding circuit 9 that is used for identity value in nib 1, sensing head 8 tops are connected with image decoding circuit 9 bottoms.In penholder 2, be provided with the communication interface 7 for the transmission code value, and communication interface 7 bottoms are connected in image decoding circuit 9 tops, also be provided be used to the audio/video decoding circuit 6 that calls an interior voice document, audio decoding circuit 6 bottoms are connected with communication interface 7 tops.And audio/video decoding circuit 6 is connected with reservoir 5, and reservoir 5 is connected with pronunciation device 3 and signal generator 4 respectively, and pronunciation device 3 and signal generator 4 are connected on the both sides inwall of penholder 2.4 master-oscillators of signal generator adopt RC formula oscillator or beat frequency oscillator, and reservoir 5 adopts the USB storage external.
The OID coded graphics is made up of one group of small point, represents different information according to each position of forming point.Each OID coded graphics is all by many trickle and some that human eye is difficult to manage is formed according to ad hoc rules, and corresponds to one group of special value, i.e. the different content of various combination identification by coding.With the different characteristics of other optical identification code maximums be that the ins and outs of microminiaturization not only has the characteristic of maintaining secrecy and disturbing with low vision, more can be hidden under the multicolour pattern of printed matter, information to books can not have any impact, but naked eyes can't clearly be differentiated, just as stealthy package design fully, so also be called stealthy sign indicating number or stealthy optical identification sign indicating number visually.OID is that a kind of optics is distinguished coding, and it has set up the most novel bridge of interface easily between printed article and the digital display circuit, and the stealthy sign indicating number of the present second generation has more than 60,000 numerical value, a whole set of books can be made a file, and its pronunciation neither one repeats.Second generation coding, the characteristic of microminiaturization not only improves the degree of difficulty of identification and is difficult to copy, and makes the OID coded graphics have the confidentiality of height.The distribution consistency degree that code pattern is good effectively reduces the interference to vision, can not cause influence on attractive in appearance to printed matter, also significantly reduces the requirement to the printing papery.OID also adopts the technology of D.H.R.T in addition.D.H.R.T is Data Hiding ﹠amp; The abbreviation of Retrieving Technology.This technology is according to the general printing-ink of CMYK the different characteristic of the light degree of absorption of specific wavelength to be developed to form, and need not to use expensive specialty inks.The OID coded graphics is technology by this, can be hidden among the colored picture and text of various printed matters.
The CU84 integrated circuit miniature edition that the audio/video decoding circuit adopts U.S. c-cube company to produce.
Sensing head 8 is located in the nib 1, comprising: the CMOS camera 11 that is used for the stealthy sign indicating number of the interior OID of click on area on the identification books; The stealthy sign indicating number of the OID picture that is used for that the CMOS camera is taken converts the optical scanning head 10 of corresponding code value to, and described optical scanning head 10 is connected 11 with the CMOS camera.Be used for the infrared LEDs 13 of emission infrared penetration CMYK printing ink, described infrared LEDs 13 is connected with infrared controller 12.
By sensing head 8 with the image alignment processing, transfer the stealthy sign indicating number of OID to code value, by communication interface 7 code value is transferred to described audio/video decoding circuit 6 again, the code value that audio/video decoding circuit 6 bases receive calls the voice document in the USB reservoir 5, voice document is transferred to described pronunciation device 3 and signal generator 4 again.Employing is packaged into heap file the packaging technique of a file, set up and stealthy sign indicating number index information one to one at packaging file, can improve the speed from sensing head 8 responsive stealthy sign indicating numbers to pronunciation and image effectively, in program, embed cryptographic algorithm, the voice document after the packing is encrypted.By described signal generator 4 transmission of wireless signals is arrived player at last, again player is linked to each other with televisor by the TV line.
The high optical recognition of resolving is to utilize high definition camera record to have the image of two-dimension code, by optical scanning head the two-dimension code data is identified again, obtain corresponding information, because high definition camera and optical scanning head have the function of higher pixel identification, even therefore minimum code-point also can be identified fully.
This reading video handwriting long-pending little, be easy to carry, and can signal wireless be transferred to player by signal generator, easy for installation, sensing head can be known the various information that two-dimension code that contents such as any literal of identification on the paper, picture, numeral are hidden contains by infrared facility and CMOS camera, the USB storage external can be according to using needs transposing voice document content.
Fig. 3 has described the present invention for signal and has used the step of a reading video reading books as shown in Figure 1, and a kind of method of using the reading reading of this reading video comprises the steps:
A installs corresponding reservoir 5 in the reading video pen 101;
B opens or closes player 102;
C, above-mentioned steps links to each other by TV line 103 player 102 if open player 102 again with televisor 104;
D is with the image on the nib 1 click books 105 of reading video pen 101.
This method is supported two kinds of mode of operations, video point reading pattern and general point reading mode, and the video point reading pattern refers to reading books displaying video animation, in second step of said method, needs opening player; The own sound horn of talking pen when the general point reading mode refers to the reading books in second step of said method, is closed player, need not to operate next two steps, and the voice of Sound book correspondence are stored in the reservoir the inside of reading video pen.
This reading method is very easy, has added three-dimensional animation video in traditional reading method, improved the interesting and rich of books reading greatly, and operating cost is low, easy operating.
Fig. 4 is the structural representation of special-purpose books shown in Figure 3, and Fig. 5 is the vertical view of two-dimension code layer shown in Figure 4.A kind of special-purpose books that use in this reading video reading books method, comprise paper 16, be printed on CMY picture and text 14 on the described paper, also be provided with two-dimension code layer 15 between described paper 16 and the CMY picture and text 14, described two-dimension code layer 15 is made up of some square two-dimentional code-points 17, and this special use books surface is as good as with general book, wall chart, is easy to carry, and by this kind integrated design, rational in infrastructure, good stability.
As known by the technical knowledge, the present invention can realize by other the embodiment that does not break away from its spiritual essence or essential feature.Therefore, above-mentioned disclosed embodiment with regard to each side, all just illustrates, and is not only.All within the scope of the present invention or the change in being equal to scope of the present invention all be included in the invention.
Claims (6)
1. reading video pen comprises nib and penholder, and described nib is connected with penholder, it is characterized in that, also comprises:
Be used for the sensing head that induction is printed on the stealthy sign indicating number of OID on paper or his medium of its person, described sensing head is located in the nib;
The image decoding circuit that is used for identity value is arranged in the described nib and with described sensing head and is connected;
The communication interface that is used for the transmission code value is arranged in the described penholder and with described image decoding circuit and is connected;
Be used for calling the audio/video decoding circuit of an interior voice document, it is interior and be connected with described communication interface to be arranged on described penholder.
Described audio/video decoding circuit is connected with reservoir, and described reservoir is connected with pronunciation device and signal generator respectively, and described pronunciation device and signal generator are connected on the both sides inwall of penholder.
2. reading video pen according to claim 1 is characterized in that described sensing head comprises:
The CMOS camera that is used for the stealthy sign indicating number of the interior OID of click on area on the identification books;
The stealthy sign indicating number of the OID picture that is used for that the CMOS camera is taken converts the optical scanning head of corresponding code value to, and described optical scanning head is connected with the CMOS camera.
Be used for the infrared LEDs of emission infrared penetration CMYK printing ink, described infrared LEDs is connected with infrared controller.
3. reading video pen according to claim 1 is characterized in that, the master-oscillator of described signal generator is RC formula oscillator or beat frequency oscillator.
4. reading video pen according to claim 1 is characterized in that, described reservoir is the USB storage external.
5. a right to use requires the method for 1 a described reading video reading books, comprises the steps:
A installs corresponding reservoir in the reading video pen;
B opens or closes player;
C, above-mentioned steps links to each other by the TV line player if open player again with televisor;
D is with the image on the nib click books of reading video pen.
6. realize the special-purpose books in the described use reading of the claim 5 video reading books method for one kind, comprise paper, be printed on the CMY picture and text on the described paper, it is characterized in that: also be provided with the two-dimension code layer between described paper and the CMY picture and text, described two-dimension code is made up of some square two-dimentional code-points.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101450190A CN103268714A (en) | 2013-04-22 | 2013-04-22 | Reading video pen, method for utilizing reading video pen to read book, and book for reading video pen |
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| CN2013101450190A CN103268714A (en) | 2013-04-22 | 2013-04-22 | Reading video pen, method for utilizing reading video pen to read book, and book for reading video pen |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104680861A (en) * | 2015-03-31 | 2015-06-03 | 佛山市金蓝领教育科技有限公司 | Internet atomic word touch learning machine |
| CN106027753A (en) * | 2016-04-27 | 2016-10-12 | 广州百田信息科技有限公司 | Control method and device touch reading story machine |
| CN108427948A (en) * | 2018-03-20 | 2018-08-21 | 王佩 | A kind of assisted learning method and system |
| CN108664026A (en) * | 2018-05-16 | 2018-10-16 | 西安交通大学 | A kind of automatic running intelligent carriage and its control method based on optical identification code |
| CN108712660A (en) * | 2018-07-16 | 2018-10-26 | 成都三网融合科技有限公司 | From the point of view of a kind of books system and from the point of view of method |
| CN109035910A (en) * | 2018-08-08 | 2018-12-18 | 麦片科技（深圳）有限公司 | Multi-screen method for pushing and equipment |
| CN110263896A (en) * | 2019-06-27 | 2019-09-20 | 北京太和互邦科技有限公司 | A kind of two dimensional code hidden method hides two-dimensional code scanning method, infrared scanner and storage equipment |
| CN111507437A (en) * | 2020-04-13 | 2020-08-07 | 上海趣威文化发展有限公司 | Method for storing and calling sound recording file and application method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060073444A1 (en) * | 2004-09-23 | 2006-04-06 | Rines Robert H | Method of and apparatus for supplementing the reading of selected passages of printed material in a book or the like by voice or acoustic pronouncement of coded indicia provided in the book at such passages, remotely to access the playing of corresponding coded tracks of pre-recorded video/audio supplemental material respectively related to the selected passages |
| CN201285551Y (en) * | 2008-10-31 | 2009-08-05 | 刘建生 | Point reading pen |
| CN201955932U (en) * | 2010-11-26 | 2011-08-31 | 周军 | Reading and writing dual-purpose pen system |
| CN202075754U (en) * | 2011-05-18 | 2011-12-14 | 深圳市鑫全图科技有限公司 | Outputting inputting device of invisible three-dimensional codes |
| KR20120002778A (en) * | 2010-07-01 | 2012-01-09 | (주)삼성출판사 | Learning system for chunking exercise |
| CN202153346U (en) * | 2011-05-26 | 2012-02-29 | 刘鸿展 | Interactive projection system |
| CN103021209A (en) * | 2012-12-07 | 2013-04-03 | 周智昂 | Video touch and talk pen |
| CN203217809U (en) * | 2013-04-22 | 2013-09-25 | 安徽工程大学 | Click-to-read video pen |
-
2013
- 2013-04-22 CN CN2013101450190A patent/CN103268714A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060073444A1 (en) * | 2004-09-23 | 2006-04-06 | Rines Robert H | Method of and apparatus for supplementing the reading of selected passages of printed material in a book or the like by voice or acoustic pronouncement of coded indicia provided in the book at such passages, remotely to access the playing of corresponding coded tracks of pre-recorded video/audio supplemental material respectively related to the selected passages |
| CN201285551Y (en) * | 2008-10-31 | 2009-08-05 | 刘建生 | Point reading pen |
| KR20120002778A (en) * | 2010-07-01 | 2012-01-09 | (주)삼성출판사 | Learning system for chunking exercise |
| CN201955932U (en) * | 2010-11-26 | 2011-08-31 | 周军 | Reading and writing dual-purpose pen system |
| CN202075754U (en) * | 2011-05-18 | 2011-12-14 | 深圳市鑫全图科技有限公司 | Outputting inputting device of invisible three-dimensional codes |
| CN202153346U (en) * | 2011-05-26 | 2012-02-29 | 刘鸿展 | Interactive projection system |
| CN103021209A (en) * | 2012-12-07 | 2013-04-03 | 周智昂 | Video touch and talk pen |
| CN203217809U (en) * | 2013-04-22 | 2013-09-25 | 安徽工程大学 | Click-to-read video pen |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104680861A (en) * | 2015-03-31 | 2015-06-03 | 佛山市金蓝领教育科技有限公司 | Internet atomic word touch learning machine |
| CN106027753A (en) * | 2016-04-27 | 2016-10-12 | 广州百田信息科技有限公司 | Control method and device touch reading story machine |
| CN106027753B (en) * | 2016-04-27 | 2020-01-10 | 广州百田信息科技有限公司 | Control method and device for click-to-read story teller |
| CN108427948A (en) * | 2018-03-20 | 2018-08-21 | 王佩 | A kind of assisted learning method and system |
| CN108664026A (en) * | 2018-05-16 | 2018-10-16 | 西安交通大学 | A kind of automatic running intelligent carriage and its control method based on optical identification code |
| CN108712660A (en) * | 2018-07-16 | 2018-10-26 | 成都三网融合科技有限公司 | From the point of view of a kind of books system and from the point of view of method |
| CN109035910A (en) * | 2018-08-08 | 2018-12-18 | 麦片科技（深圳）有限公司 | Multi-screen method for pushing and equipment |
| CN110263896A (en) * | 2019-06-27 | 2019-09-20 | 北京太和互邦科技有限公司 | A kind of two dimensional code hidden method hides two-dimensional code scanning method, infrared scanner and storage equipment |
| CN111507437A (en) * | 2020-04-13 | 2020-08-07 | 上海趣威文化发展有限公司 | Method for storing and calling sound recording file and application method thereof |
| CN111507437B (en) * | 2020-04-13 | 2023-04-25 | 上海趣威文化发展有限公司 | Recording file storage and calling method and application method thereof |
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Application publication date: 20130828 |