CN101566864A - Notebook computer and method for acquiring document image by image acquiring device thereof - Google Patents
Notebook computer and method for acquiring document image by image acquiring device thereof Download PDFInfo
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- CN101566864A CN101566864A CNA2008100929968A CN200810092996A CN101566864A CN 101566864 A CN101566864 A CN 101566864A CN A2008100929968 A CNA2008100929968 A CN A2008100929968A CN 200810092996 A CN200810092996 A CN 200810092996A CN 101566864 A CN101566864 A CN 101566864A
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Abstract
The invention discloses a notebook computer and a method for acquiring a document image by an image acquiring device thereof. The notebook computer comprises a base and an upper cover, wherein the base comprises a keyboard, and the upper cover comprises a screen, the image acquiring device and a close-up lens. The upper cover is rotated, thereby the image acquiring device arranged on the upper cover can shoot a document on a table top, and a built-in image processing program corrects the image of the document after the document is shot. Compared with a shooting mode that the document is held by the hand of a user, the invention can acquire the clearer image of the document. The invention can shoot the document only by the close-up lens which is additionally arranged and has small volume, thereby providing greater carrying convenience.
Description
Technical field
The present invention relates to a kind of notebook computer, relate in particular to the method that notebook computer with image acquiring device and the image acquiring device that uses notebook computer are read document image.
Background technology
General most on the market notebook computer has image acquiring device in all, can be in order to take pictures or purposes such as video.Along with development of science and technology, the electronization of text file is also more and more universal, and general archive files is to save as e-file (generally saving as pdf document) by scanister with the file file scan and with it.But be not that every computing machine all is provided with scanister, and this document data only is more simple files such as single face data or business card, the user can use a computer the periphery image acquiring device the Image Acquisition of file is got off to save as e-file, wherein this e-file is image file (jpeg file).But general user still uses the pdf document that produces by scanister as much as possible, its reason is that pdf document can make computing machine read literal and the symbol that is comprised in its file, and is text file and can editing with those literal or symbol transition.
But, because optical character identification technique (Optical Character Recognition, OCR) development reaches its maturity, allowing the user operate the image that image acquiring device obtains can analyze jpeg file by the optical character identification technique, and can be text file and editor with literal and the symbol transition that is comprised in the jpeg file also.Therefore, there is increasing user to select to use image acquiring device to obtain the electronic image shelves of file.
Yet, use image acquiring device that file is taken and obtain document image and can run into difficulty in the enforcement, for example setting up of file is exactly a knowledge.When user's desire uses the image acquiring device of notebook computer to obtain one piece of article on the file, if the user is to hand this document, utilize image acquiring device to take file again, notebook computer can obtain because of the ambiguous document image of hand wobble.In view of this, cause image blurringly for fear of hand wobble, the user is positioned over file on the static cubbyhole, just the document image that can obtain not rock.But cubbyhole has brought new problem, and promptly cubbyhole only can be used for fixed place, if need carry cubbyhole moves, is sizable burden to the user.
For convenience's sake, the user gives up cubbyhole and directly file is positioned on the workplace (being generally desktop), the loam cake of rotation notebook computer makes the image acquiring device that is arranged at loam cake approach the file on the workplace and takes, to obtain the image of file.But the default focal length of the image acquiring device of general notebook computer is about 60 centimeters, when utilizing the rotation loam cake to make setting image acquiring device thereon take the file that is positioned on the workplace, distance between image acquiring device and file is less than original default focal length (60 centimeters), and the document image that is obtained under situation like this can produce fuzzy phenomenon and make the naked eyes can't identification.For the user, only use notebook computer to finish obtaining of document image and need not carry some and be unfavorable for that the device that carries is eaily, therefore, need a kind of notebook computer that is placed on the file on the workplace of taking.
Summary of the invention
The purpose of this invention is to provide a kind of notebook computer that is placed on the file on the workplace of taking.
In a preferred embodiment, the present invention proposes a kind of notebook computer, in order to obtain to be placed on the image of the file on the workplace, comprising:
Base comprises:
Keyboard is in order to input characters or symbol; And
Loam cake is connected in base and also can rotates with respect to base; Loam cake comprises:
Screen is in order to the image of display file;
Image acquiring device is arranged at the upper limb place of screen, be used to loam cake with respect to the base rotation and and when forming an angle between base, obtain the image of file; And
Close-up is in order to shorten the focal length of image acquiring device;
The built-in image processing program of notebook computer wherein after obtaining the image of the file on the workplace at image acquiring device, carries out Flame Image Process to the image of file.
In a preferred embodiment, loam cake also comprises a groove, and the close-up tool comprises fixed hook, close-up is fixed in covers.
In a preferred embodiment, the image processing program Flame Image Process of carrying out comprises that keystone handles, strengthens contrast and handle, remove background process or text-recognition is handled.
In a preferred embodiment, keystone is handled and is adjusted according to an angle preset value of angle, and the angle preset value determines according to the thickness of notebook computer or the position of file.
In a preferred embodiment, image processing program comprises that also an angle adjusts handling procedure, when being used to angle between loam cake and base and not being comprised in the angle preset value, document image is carried out shape correction.
In a preferred embodiment, the angle that notebook computer provided is handled routine package and is contained following steps:
Read and be positioned over the image of proofreading and correct the file on the paper and obtain a tilted image, wherein file covers a part of proofreading and correct paper, and to have an edge of a plurality of chequers and file parallel with a plurality of grids and proofread and correct paper; And
Correction paper grid image-region in the inclination document image is modified to the right angle and carries out the shape correction of document image.
In a preferred embodiment, be 90 when spending at angle, notebook computer also comprises a refracting telescope, is arranged on the close-up, in order to be under the situations of 90 degree at angle, makes image acquiring device can obtain the image of documentation.
In a preferred embodiment, the image processing program Flame Image Process of carrying out comprises that keystone handles, strengthens contrast and handle, remove background process or text-recognition is handled.
In a preferred embodiment, the present invention also proposes a kind of method of using the image acquiring device acquisition document image of notebook computer, wherein notebook computer is positioned on the workplace and comprises base, loam cake, image acquiring device is arranged at the upper limb of loam cake and the side that close-up is arranged at image acquiring device, and this method comprises:
Placement has the correction paper of a plurality of chequers on workplace, and makes correction paper be positioned at a side of notebook computer;
Place file in proofreading and correct on the paper, make file cover a part of proofreading and correct paper;
Rotate the loam cake of notebook computer, make image acquiring device and close-up in alignment with file and correction paper;
Use image acquiring device and close-up to obtain file and the image of proofreading and correct paper, and obtain a tilted image, wherein tilted image comprises the document image zone of inclination and the correction paper grid image-region that tilts; And
The correction paper grid image-region that tilts is modified to the right angle, obtains a tilt correction parameter according to revising the correction paper image-region that tilts;
According to the tilt correction parameter, tilted image is carried out Flame Image Process and obtains revised document image; And
Judge whether revised document image is clear; Wherein
When revised document image when being clear, record tilt correction parameter also makes image acquiring device obtain image work according to the tilt correction parameter; Or
When revised document image when being unintelligible, notebook computer produces a warning tones and revises angle to remind the user.
In a preferred embodiment, judging whether clear revised document image is determines according to the long limit of revised document image and the ratio of minor face.
In a preferred embodiment, when the ratio of long limit and minor face is less than or equal to clear reference value, judge that revised document image is clear, and
When the ratio of long limit and minor face during, judge that revised document image is unintelligible greater than clear reference value.
In a preferred embodiment, Flame Image Process comprises that keystone is handled, the reinforcement contrast is handled, remove background process or text-recognition is handled.
Description of drawings
Fig. 1 is the structural representation of notebook computer first preferred embodiment of the present invention.
Fig. 2 is the structure side view of notebook computer first preferred embodiment of the present invention.
Fig. 3 is the document image synoptic diagram that image acquiring device of the present invention obtains in first preferred embodiment.
Fig. 4 is that notebook computer of the present invention carries out revised document image synoptic diagram in first preferred embodiment.
Fig. 5 is the structure side view of notebook computer second preferred embodiment of the present invention.
Fig. 6 is the document image synoptic diagram that image acquiring device of the present invention obtains in second preferred embodiment.
Fig. 7 is that notebook computer of the present invention carries out revised document image synoptic diagram in second preferred embodiment.
Fig. 8 is the structure side view of notebook computer the 3rd preferred embodiment of the present invention.
And the description of reference numerals in the above-mentioned accompanying drawing is as follows:
100 notebook computers, 101 bases
102 loam cakes, 103 keyboards
104 screens, 105 image acquiring devices
107 rotating shafts of 106 close-ups
108 grooves, 109 fixed hooks
110 refracting telescopes, 200 workplaces
300 files, 301,302,303,304 images
3031,3032,3041,3042 image-regions 400 are proofreaied and correct paper
401 chequer a, b, c angle
Embodiment
See also Fig. 1, it is for the structural representation of notebook computer first preferred embodiment of the present invention.Notebook computer 100 comprises a base 101 and a loam cake 102, and base 101 is provided with keyboard 103, uses for user's input characters or symbol; Loam cake 102 comprises a screen 104 and an image acquiring device 105, and image acquiring device 105 is arranged at the upper limb place of loam cake 101, in order to obtain image.And screen 103 after image acquiring device 105 obtains image, can use screen 103 to show this image in order to show the operative scenario of notebook computer 100.And base 101 is connected both by a rotating shaft 107 with loam cake 102, and makes loam cake 102 can carry out rotation with respect to base 101.Structure explanation according to the invention described above notebook computer 100, the structure of notebook computer 100 of the present invention as can be known and known notebook computer are as good as, but known notebook computer can't be taken the image that is placed on the file on the workplace, its reason is that the focal length of image acquiring device is too big, so can't obtain clear available document image.And in order to make image acquiring device 105 improve the deficiency of known notebook computer, notebook computer 100 of the present invention also is provided with a close-up 106 in a side of image acquiring device 105, as shown in Figure 2.
See also Fig. 2, it is for the structure side view of notebook computer first preferred embodiment of the present invention.The loam cake 101 of notebook computer 100 also comprises a groove 108, when close-up 106 is set at the front end of image acquiring device 105, fixed hook 109 on the close-up 106 stretches in the groove 108 and is sticked in groove 108, so that close-up 106 is fixed in a side of image acquiring device 105.Wherein close-up 106 makes image acquiring device 105 can obtain the image that is positioned at object nearby in order to shorten the focal length of image acquiring device 105, also is that image acquiring device 105 can be taken the file that is positioned on the workplace.Among Fig. 2, notebook computer 100 is placed on the workplace 200, and a file 300 also is placed on the workplace 200, and file 300 is positioned at a front end of notebook computer 100, wherein file 300 can be all kinds of Hard copy files, for example little cards such as books, individual paper (size is not limit) or business card.When the user desires to obtain one section article on the file 300, and when wanting that it is saved as an e-file, can utilize rotating shaft 107 to make loam cake 102 rotations, and have an angle a between base 101 and the loam cake 102, make image acquiring device 105 aim at the direction of files 300 and be convenient to obtain the image of file 300.The present invention can set a certain button on the keyboard 103 as the switch that starts image acquiring device 105, for example can set notebook computer 100 when image acquiring device 105 is in the preparation shooting, the blank key assignments that will be positioned at keyboard 103 outsides is the shooting start key of image acquiring device 105.When the user pushes blank key, image acquiring device 105 will be taken behind a Preset Time (for example 5 seconds), and wherein Preset Time is available for users to image acquiring device 105 is aimed at file 300 and rotated loam cake 102, so that take.After 105 pairs of files 300 of image acquiring device are taken, obtain a document image 301, as shown in Figure 3.Document image 301 is images of a generation tilt phenomenon, and this tilt phenomenon is because the angle a of 102 of base 101 and loam cakes causes, in detail, because angle a makes surperficial parallel that the camera lens of image acquiring device 105 can't be with file 300, overlook file and form this camera lens from an angle, therefore the inclination that produces document image 301, and document image will produce tilt phenomenon in various degree because of the difference of angle.In view of this, notebook computer 100 of the present invention has an image processing program in going back, in order to document image 301 is carried out the error correction of image aspect.
In this preferred embodiment, image processing program carries out keystone to document image 301 to be handled, and revises the tilt phenomenon of document image 301, and the document image 302 after the correction through being obtained after the Flame Image Process as shown in Figure 4.Fig. 4 discloses the document image 302 after the correction.As seen from Figure 4, the document image after the correction 302 has been eliminated the inclination of original document image 301.In addition, be not to have only keystone to handle in the image processing program, also include Flame Image Process such as strengthening contrast processing, removal background process or text-recognition processing, can adjust according to user's demand.
And the factor that causes tilt phenomenon is except angle, and the size of notebook computer also influences to some extent to the tilt phenomenon of document image.Because of notebook computer dimensions is big more, the thickness of its base is also thick more, and the change of its thickness can make original default angle preset value also need to adjust, otherwise after keystone was handled, document image still had slight tilt phenomenon and exists.Therefore, placing document location is under the prerequisite of fixed location, through experiment test repeatedly, the present invention can provide corresponding angle preset value according to the size of several main notebook computers, also promptly, image processing program must be when angle equals the angle preset value appropriate correction file image.
According to the present invention in notebook computer first preferred embodiment, the user is before using image acquiring device to take, angle between loam cake and base must be adjusted to a certain degree preset value, and this certain degree preset value must just can obtain through experiment test repeatedly, most of users are for feeling trouble, therefore the present invention proposes second preferred embodiment, to solve user's puzzlement.
See also Fig. 5, it is for the structure side view of notebook computer second preferred embodiment of the present invention.Among Fig. 5, the surface structure of notebook computer 100 and first preferred embodiment are identical, difference is, the angle value that base 101 and loam cake are 102 is angle b, in this preferred embodiment, in angle b is not included in by the angle preset value, that is to say that image processing program is the correction file image exactly when the angle value of 102 of base 101 and loam cakes during for the angle preset value set.Accurately under the situation of correction image, second preferred embodiment of the present invention proposes a kind of angle and adjusts the inclination situation that handling procedure comes correction image at image processing program.When user's desire saves as e-file with file 300, before operation image acquiring device 105, placement one has the correction paper 400 of a plurality of chequers 401 on workplace 200, and file 300 is positioned on the correction paper 400, and file 300 covers a part of proofreading and correct paper 400, wherein the edge of file 300 is parallel to each other with a plurality of grids 401 of proofreading and correct on the paper 400, as shown in Figure 5.After file 300 is finished with 400 settings of correction paper, start 105 pairs of files of image acquiring device 300 and proofread and correct paper 400 shootings, and acquisition document image 303.
See also Fig. 6, the document image synoptic diagram that it obtains in second preferred embodiment for image acquiring device of the present invention.It in the document image 303 image that tilts, and document image 303 comprises the document image zone 3031 of inclination and the correction paper grid image-region 3032 that tilts, the document image zone 3031 of its medium dip is identical with the degree that the correction paper grid image-region 3032 that tilts tilts, therefore, as long as the document image zone 3031 that tilts is proofreaied and correct to not tilting, correction paper grid image-region 3032 also can be corrected simultaneously to be finished, and vice versa.Because of making the angle of a plurality of grids, inclination is rendered as the angle of on-right angle and proofread and correct paper grid image-region 3032, at this moment, image processing program can a plurality of grids angle be benchmark, be modified to the right angle by a plurality of grids that will tilt, and then correction document image 303, therefore obtain revised document image 304, as shown in Figure 7.Among Fig. 7, document image 304 is images that do not tilt, as long as cut the image of the correction paper grid image-region 3042 in the document image 304 again, only stays the part in document image zone 3041, promptly becomes the image that Flame Image Process is finished.The image processing program aspect, can obtain the parameter of tilt correction degree, and image processing program can get off this reference record, and the user only need note down the angle value of angle b at this moment get off, when after this using this notebook computer operation image acquiring device, only its angle need be adjusted to the angle value of angle b, image processing program can utilize the parameter of noting that image is revised, and wherein file 300 is positioned on the fixing position with correction paper 400.Certainly, when the user use the notebook computer of different size or with file when proofreading and correct paper and be positioned over diverse location, must re-execute an angle and adjust handling procedure, and the angle value of record this moment and the placement location of file, from then on after, as long as according to angle adjustment angle value and document location that handling procedure drew, can use the file on the image acquiring device shooting workplace.Certainly, this preferred embodiment with as first preferred embodiment of the present invention, set arbitrary button on the keyboard 103 as taking start key, the user only need press this shooting start key and can take.
In theory, the angle that this preferred embodiment proposes is adjusted handling procedure and can be proofreaied and correct the angle of any angle value, and also, under the situation that document location is fixed, angle is adjusted the too big or too little error that produces of angle of handling procedure recoverable angle.But if the angle value error of angle b is too big, can obtain the revised document image 304 of a long strip type, that is to say that the document image 304 through revising has bigger long limit and less minor face; So the distortion phenomenon of the image of Aspect Ratio great disparity too seriously and is not adopted by the user, therefore, document image for fear of serious distortion, notebook computer 100 of the present invention can be set a clear reference value, be used to take and judge when finishing whether document image 304 is clear, clear reference value is the length and width ratio (ratio of long limit and minor face in the document image) of document image, when the length and width ratio of revised document image 304 is less than or equal to clear reference value, judge that document image 304 is clear; Again or, when length and width ratio during, judge that document image 304 is distortion (unintelligible) greater than clear reference value.And be judged as when clear when document image 304, then document image 304 can be exported to screen 104 watches for the user, and the tilt correction parameter of record this moment, make the image acquiring device 105 after this can be when the angle angle is angle b according to this tilt correction parameter correction document image.When document image 304 is judged as when unintelligible, notebook computer 100 can send a warning tones and revise angle b to remind the user, wherein warning tones can be bleep sound or the sound of pre-recording, this sound-content of pre-recording can be reminds the user to dwindle angle or add the mitre angle, so that the user is in adjusting angle and can obtaining clear available document image after the shooting once more.
In addition, the present invention also proposes one the 3rd preferred embodiment to exempt the puzzlement of adjusting angle, sees also Fig. 8, the structure side view of notebook computer the 3rd preferred embodiment of the present invention.Identical on notebook computer 100 surface structures in the 3rd preferred embodiment with first and second preferred embodiment, one refracting telescope 110 only is set on close-up 106, and the angle value that base 101 and loam cake are 102 is angle c, wherein angle c is that promptly the user is in the angle of general operation notebook computer 100 near the angle value of 90 degree.The 3rd preferred embodiment of the present invention is by the setting of refracting telescope 110, image acquiring device 105 can be taken by the file on 110 pairs of workplaces 200 of refracting telescope 300, after the shooting, image processing program carries out Flame Image Process such as keystone to document image, and can obtain revised document image.This preferred embodiment can allow needn't overturn loam cake 102 and adjust loam cake 102 and the angle of 101 of bases of user, and can carry out the shooting of file, in addition, the user also can directly watch the shooting situation of file 300 and the document image of taking the back and being corrected by screen 104.
By the various embodiments described above as can be known, the present invention takes with hand-held file mode with the user and compares, and the present invention can obtain document image more clearly.In addition, the present invention only need additionally be provided with the little close-up of volume and can take file, for the user, carry the little close-up of volume and do not constitute puzzlement, only need close-up is put in the special-purpose collecting bag of notebook computer and can easily be carried, compare with the described cubbyhole of known technology, the invention provides bigger carrying convenience.
The above is the preferred embodiments of the present invention only, is not in order to limiting claim of the present invention, and therefore all other do not break away from the equivalence of being finished under the disclosed spirit and change or modify, and all should be contained in the claim of this case.
Claims (12)
1, a kind of notebook computer in order to obtain to be positioned over the image of the file on the workplace, comprising:
One base comprises:
One keyboard is in order to input characters or symbol; And
One loam cake is connected in this base and also can rotates with respect to this base; This loam cake comprises:
One screen is in order to show the image of this document;
One image acquiring device is arranged at a upper limb place of this screen, be used to this loam cake with respect to this base rotation and and when forming an angle between this base, obtain the image of this document; And
One close-up is in order to shorten the focal length of this image acquiring device;
The built-in image processing program of this notebook computer wherein, be used to image that this image acquiring device obtains this document on this workplace after, the image of this document is carried out a Flame Image Process.
2, notebook computer as claimed in claim 1, wherein this loam cake also comprises a groove, and this close-up tool comprises a fixed hook, in order to be fastened on this groove this close-up is fixed on this and covers.
3, notebook computer as claimed in claim 1, wherein this image processing program this Flame Image Process of carrying out comprises that keystone handles, strengthens contrast and handle, remove background process or text-recognition is handled.
4, notebook computer as claimed in claim 3, wherein this keystone is handled and is adjusted according to an angle preset value of this angle, and this angle preset value determines according to the thickness of this notebook computer or the position of this document.
5, notebook computer as claimed in claim 4, wherein this image processing program comprises that also an angle adjusts handling procedure, is used to this angle between this loam cake and this base and is not contained in this angle preset value when interior, and this document image is carried out shape correction.
6, notebook computer as claimed in claim 5, wherein this angle processing routine package contains following steps:
Read and be positioned over one and proofread and correct the image of this document on the paper and obtain a tilted image, wherein this document covers the part of this correction paper, and that this correction paper has an edge of a plurality of chequers and this document is parallel with these a plurality of grids; And
In this inclination document image one proofreaied and correct that paper grid image-region is modified to the right angle and the shape correction that carries out this document image.
7, notebook computer as claimed in claim 1, be 90 when spending in this angle wherein, this notebook computer also comprises a refracting telescope, is arranged on this close-up, being used to this angle is under the situation of 90 degree, makes this image acquiring device can obtain the image of this document data.
8, notebook computer as claimed in claim 7, wherein this image processing program this Flame Image Process of carrying out comprises that keystone handles, strengthens contrast and handle, remove background process or text-recognition is handled.
9, a kind of method of using the image acquiring device acquisition document image of notebook computer, wherein this notebook computer is positioned on the workplace, and comprise a base, one loam cake, one image acquiring device is arranged at a upper limb of this loam cake, and one close-up be arranged at a side of this image acquiring device, this method comprises:
Placement has one of a plurality of chequers and proofreaies and correct paper on this workplace, and makes this correction paper be positioned at a side of this notebook computer;
Place a file on this correction paper, make this document cover the part of this correction paper;
Rotate this loam cake of this notebook computer, make this image acquiring device and this close-up in alignment with this document and this correction paper;
Use this image acquiring device and this close-up to obtain the image of this document and this correction paper, and obtain a tilted image, wherein this tilted image comprises a document image zone that tilts and a correction paper grid image-region that tilts; And
The correction paper grid image-region of this inclination is modified to the right angle, obtains a tilt correction parameter according to the correction paper image-region of revising this inclination;
According to this tilt correction parameter, this tilted image is carried out a Flame Image Process and obtains a revised document image; And
Judge whether this revised document image is clear; Wherein
When this revised document image when being clear, write down this tilt correction parameter, and make this image acquiring device obtain image work according to this tilt correction parameter; Or
When this revised document image when being unintelligible, this notebook computer produces a warning tones and revises this angle to remind the user.
10, the image acquiring device of use notebook computer as claimed in claim 9 obtains the method for document image, wherein judge this revised document image whether clear be that a ratio of growing limit and minor face according to this revised document image determines.
11, the image acquiring device of use notebook computer as claimed in claim 10 obtains the method for document image, wherein:
When the ratio of this length limit and minor face is less than or equal to a clear reference value, judge that this revised document image is clear, and
When the ratio of this long limit and minor face during, judge that this revised document image is unintelligible greater than this clear reference value.
12, the image acquiring device of use notebook computer as claimed in claim 9 obtains the method for document image, and wherein this Flame Image Process comprises that keystone is handled, the reinforcement contrast is handled, remove background process or text-recognition is handled.
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| CN2008100929968A CN101566864B (en) | 2008-04-22 | 2008-04-22 | Notebook computer and method for acquiring document image by image acquiring device thereof |
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| CN2008100929968A CN101566864B (en) | 2008-04-22 | 2008-04-22 | Notebook computer and method for acquiring document image by image acquiring device thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103902263A (en) * | 2012-12-25 | 2014-07-02 | 鸿富锦精密工业(武汉)有限公司 | Automatic opening system and method for notebook computer cover |
| CN104063024A (en) * | 2014-06-24 | 2014-09-24 | 林宏 | Computer with stand |
| CN104636057A (en) * | 2013-11-08 | 2015-05-20 | 联想(北京)有限公司 | Information prompt method, device and electronic equipment |
| CN112435172A (en) * | 2019-08-26 | 2021-03-02 | 北京三好互动教育科技有限公司 | Image correction method and device, storage medium and electronic equipment |
| CN112437250A (en) * | 2019-08-26 | 2021-03-02 | 北京三好互动教育科技有限公司 | Teaching equipment that slope was shot |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2377557Y (en) * | 1999-01-29 | 2000-05-10 | 神达电脑股份有限公司 | Polydirectional camera locating device for notebook computer |
| CN100579157C (en) * | 2003-08-27 | 2010-01-06 | 致伸科技股份有限公司 | Mobile telephone system with calling card scanning identification function |
| CN1321358C (en) * | 2004-07-12 | 2007-06-13 | 英业达股份有限公司 | Portable computer capable of acquiring scan data |
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- 2008-04-22 CN CN2008100929968A patent/CN101566864B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103902263A (en) * | 2012-12-25 | 2014-07-02 | 鸿富锦精密工业(武汉)有限公司 | Automatic opening system and method for notebook computer cover |
| CN104636057A (en) * | 2013-11-08 | 2015-05-20 | 联想(北京)有限公司 | Information prompt method, device and electronic equipment |
| CN104636057B (en) * | 2013-11-08 | 2018-12-14 | 联想(北京)有限公司 | Information cuing method, device and electronic equipment |
| CN104063024A (en) * | 2014-06-24 | 2014-09-24 | 林宏 | Computer with stand |
| CN112435172A (en) * | 2019-08-26 | 2021-03-02 | 北京三好互动教育科技有限公司 | Image correction method and device, storage medium and electronic equipment |
| CN112437250A (en) * | 2019-08-26 | 2021-03-02 | 北京三好互动教育科技有限公司 | Teaching equipment that slope was shot |
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| Publication number | Publication date |
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| CN101566864B (en) | 2011-04-06 |
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