JP2009064103A - Information processing apparatus and recording apparatus - Google Patents

Abstract

An information processing apparatus capable of specifying a recording medium even when there are a plurality of recording media and capable of recognizing additional information reliably regardless of usage conditions.
A plurality of barcodes 2 encoded with a document ID for identifying a paper document 1 are arranged on the paper document 1 and the barcode imaging unit 5 recognizes an image of the barcode 2 from the peripheral portion of the paper document 1. , A writing detection means 6 for detecting the movement position of the writing pen 3 to be written on the paper document 1, the barcode image pickup means 5 and the writing detection means 6 are constructed in an integrated structure, and a plurality of locations around the paper document 1 It has the unit 7 which is a mechanism which can be attached to.
[Selection] Figure 1

Description

  The present invention relates to an information processing apparatus and a recording apparatus, and more particularly to an information processing apparatus having a writing input function for converting information to be written on paper into electronic information.

  Conventionally, handwritten writing is often added to a document printed on paper by correction or additional entry, and electronic information of the printed document is stored in a PC or the like. There are also demands to be made.

  In response to this request for digitization of added information, there is a method of separating the electronic information image of the document before writing by scanning a paper document to which writing has been added with a scanner or the like and performing image processing. In addition, there are many technical problems in terms of processing time and image extraction accuracy in writing information extraction by image separation of the original document.

  In addition, many paper documents are not limited to a single sheet but are composed of a plurality of sheets. When adding rewriting to each of the plurality of paper documents, it is necessary to digitize the rewriting information for each paper document separately.

  Therefore, in Patent Document 1 (Japanese Patent Laid-Open No. 2001-147771), a method of detecting a barcode printed on a paper document with a code reader from the side direction holding the paper document of the electronic information device is adopted. The target paper document is identified by detecting the barcode printed on the paper document that is currently being retouched from among the paper documents, and the retouching is detected by the detection means of the electromagnetic induction type digitizer. The added information can be digitized and managed for each paper document.

  However, since the position of the code reader is fixed in the technique described in Patent Document 1, the user's hand comes between the code reader and the barcode on the paper document according to the direction of the user's dominant hand. May interfere with barcode reader detection.

  Further, in Patent Document 2 (Japanese Patent Laid-Open No. 2006-066571), a writing pen including an ultrasonic transmitter and a plurality of ultrasonic receiving units are provided as a writing detection unit, and the position of the writing pen is detected from the received data. A unit equipped with a coordinate detection function can be attached to the periphery of a drawing board that secures a paper document. Depending on the direction of the user's dominant hand and the usage status of the information processing device, the coordinates of the writing pen of the writing detection means It is possible to arrange the detection unit at an appropriate position.

However, the technique described in Patent Document 2 does not have a function of automatically recognizing a paper document to be added, and cannot specify a paper document to be added for writing on a plurality of paper documents. Therefore, it is not possible to digitize and manage additional information for each paper document. In addition, since there is no function for automatically recognizing the position where the coordinate detection unit of the writing pen is attached to the paper document, the relative position of the writing pen with respect to the content of the paper document cannot be automatically detected.
JP 2001-147771 A JP 2006-065701 A

  The problems of the prior art considered by the present invention are that the paper document to be added cannot be specified particularly when there are a plurality of paper documents to be added, and the coordinate detection of the writing pen is not performed accurately depending on the use situation. That is.

  Therefore, in view of the above circumstances, the present invention can identify a recording medium even when there are a plurality of recording media (including paper documents), and recognizes additional information reliably regardless of usage conditions. An object of the present invention is to provide an information processing apparatus capable of performing the above.

  In order to achieve the above object, according to the first aspect of the present invention, a plurality of barcodes encoded with document IDs for identifying a recording medium are arranged on the recording medium, and the barcodes are imaged from the periphery of the recording medium. A recognizing means for detecting a moving position of the rewriting pen to be retouched on the recording medium is provided along with the recognizing image recognizing means. An information processing apparatus having an attachable mechanism.

  The invention described in claim 2 has a holding member for holding a plurality of recording media, and the imaging means and the writing detection means are arranged at positions that do not hinder the page turning operation of the recording medium. The information processing apparatus according to claim 1.

  According to a third aspect of the present invention, the writing pen includes an ultrasonic transmission unit, and the additional detection unit includes a plurality of ultrasonic reception units for receiving ultrasonic waves transmitted from the ultrasonic transmission unit. The information processing apparatus according to claim 1, further comprising: coordinate detection means that detects a position of the writing pen from ultrasonic reception data by the ultrasonic reception unit.

  According to a fourth aspect of the present invention, there is provided a detection means for detecting a direction of a barcode photographed by the imaging means, and the imaging means configured as an integral structure based on information on the direction of the photographed barcode. 4. The information processing apparatus according to claim 1, further comprising a function of automatically discriminating a mounting position of the additional writing detection unit. 5.

  According to a fifth aspect of the present invention, there is provided a plurality of barcodes on the recording medium so that at least one of the barcodes can be photographed from imaging means that can be attached to a plurality of locations around the recording medium. Is a recording apparatus that prints the image superimposed on a paper document.

  According to the present invention, even when there are a plurality of recording media (including paper documents), the recording medium can be specified, and the additional information can be reliably recognized regardless of the use situation. A processing apparatus can be provided.

Preferred embodiments of the present invention will be described below with reference to the drawings.
One example of the schematic configuration of the information processing apparatus according to the present embodiment is shown in FIG.

The information processing apparatus of the present embodiment shown in FIG. 1 includes an image pickup means 5 for recognizing a plurality of barcodes 2 printed on a paper document 1 to be added and movement of the writing pen 3 to be added. A writing detection unit 6 for detecting the position is provided, and the imaging unit 5 and the writing detection unit 6 are integrated into a unit 7. The unit 7 can be attached to the periphery of the drawing board 4 that holds the paper document 1 and, in the attached state, photographs at least one of a plurality of barcodes 2 printed on the paper document 1. be able to. This unit 7 can select an attachment position according to a use situation, and the drawing board 4 has a plurality of attachment positions. The drawing board 4 can hold a plurality of paper documents 1 and has a structure that does not interfere with the page turning operation when turning the paper document 1.
The barcode 2 is a barcode 2 encoded with a document ID that can identify the content of the paper document 1.

  A recording apparatus (not shown) for creating the paper document 1 has a function of generating a barcode 2 in which the document ID of the paper document 1 is encoded, and the barcode imaging means 5 and the writing detection means 6 are integrated. When the unit 7 is attached to any position of the plurality of attachment positions of the drawing board 4, the barcode imaging means 5 always places a plurality of barcodes 2 in a predetermined position so that one or more barcodes 2 can be photographed. Are printed on the paper document 1 in a superimposed manner. Therefore, the paper document 1 is a “recording medium” in the present invention. The “recording medium” is not limited to paper or plain paper, but is a reversible thermosensitive recording medium that can be repeatedly printed and erased by reversibly changing the heat-sensitive layer of the recording medium to a colored state or a decolored state by heating. (Rewritable paper) etc. can also be included.

  In the recording apparatus described above, the barcode imaging unit of the information processing apparatus can always recognize the paper document to be added by arranging a plurality of barcodes superimposed on the paper document at predetermined positions. In addition, a paper document on which a plurality of barcodes are superimposed and printed at predetermined positions is added with a general writing pen without using the information processing apparatus shown in FIG. Based on the difference between the predetermined position where the plurality of barcodes should be arranged and the positions of the plurality of barcodes by the whole-surface scanning, it is possible to correct the image expansion / contraction and the conveyance skew by the scanning. Of course, the document ID of the paper document can be acquired by decoding any one of the barcodes. Therefore, the paper document by the superimposition printing of a plurality of barcodes by the recording apparatus is not only used in the information processing apparatus of FIG. 1, but also by adding a writing with a general writing pen and performing a post scan with a scanner. It is possible to manage the retouching information digitized for each paper document.

  FIG. 2 shows one print example in which a plurality of barcodes 2 are superimposed on a paper document 1 at a predetermined position. The barcode 2 printed in FIG. 2 is an example in which “QR code (registered trademark)” is adopted as the barcode 2 generated by the image processing system.

  A plurality of the same barcodes 2 are printed, and the same document ID can be obtained as a result of decoding by image processing regardless of which of the plurality of barcodes 2 is photographed. The plurality of barcodes 2 are printed in the same direction. FIG. 3 shows an enlarged view of the QR code in the printing example of FIG. This state is the QR code upright position. The directionality of the QR code can be determined by detecting three large squares at the upper left, upper right, and lower left of the QR code in FIG.

  As shown in FIG. 1, in the embodiment in which the unit 7 in which the barcode imaging unit 5 and the writing detection unit 6 are integrated is attached to the upper side of the paper document 1, the barcode imaging unit 5 uses the bar on the paper document 1. An image obtained by photographing the code 2 is as shown in FIG. As shown in this video, the QR code is photographed while being deformed into a trapezoidal shape, but it is possible to easily recognize the three large squares that recognize the directionality of the QR code.

  In the captured image of the QR code as shown in FIG. 4, it is recognized that three large squares are arranged in the upper right, lower left, and lower right. When the QR code printed at the upright position shown in FIG. 3 is photographed from above, such a photographed image as shown in FIG. 4 is obtained. This is because the shooting direction of the barcode image pickup means 5 is the same as the viewing direction 180 ° opposite to the viewing direction of the user in this mounting embodiment.

  When the three large squares of the QR code are image-recognized from the photographed image as shown in FIG. 4, the image processing system uses a unit 7 in which the barcode imaging means 5 and the writing detection means 6 are integrated as the upper side of the paper document 1. Automatically recognizes that it was attached to. It is possible to automatically recognize the positional relationship of the ultrasonic receiving unit 8 of the writing detection means 6 and the arrangement relationship of the paper document 1 with the unit 7 attached at this position.

  The operations and effects of the present embodiment described with reference to FIGS. 1 to 4 will be described together. In the information processing apparatus according to the present embodiment, by adding means for reading a barcode in the writing work on the paper document, the paper document to be added is specified, and the writing information on the paper document is digitized, Allows management in relation to paper documents. In addition, a unit that integrates barcode imaging means and writing detection means can be attached to multiple locations around the paper document, so it can be attached at a position that does not hinder the user's writing work depending on the usage situation. Can be used. In addition, it is possible to handle a plurality of paper documents, and it is possible to manage digitized writing information for each paper document to be added in a writing operation on a plurality of paper documents.

  Next, the writing detection means 6 of the information processing apparatus according to the present embodiment will be described in more detail. The writing detection means 6 includes an ultrasonic transmitter 9 in the writing pen 3, and the ultrasonic waves transmitted from the ultrasonic transmitter 9 are received by a plurality of ultrasonic receivers 8 to determine the coordinate position of the writing pen 3. To detect. The plurality of ultrasonic wave receiving sections 8 are used as the writing detection means 6 and are arranged at predetermined positions in the unit 7 in which the barcode imaging means 5 and the writing detection means 6 are integrated. Therefore, by automatically recognizing the mounting position of the unit 7, it is possible to automatically recognize where the ultrasonic receiving unit 8 is disposed.

  A schematic configuration example of the writing detection means 6 is shown in FIG. The ultrasonic waves generated from the ultrasonic transmitter 9 in the writing pen 3 shown in FIG. 5 are received by the two ultrasonic receiving units 8, and the writing pens from the two ultrasonic receiving units 8 are received from the received data. 3 relative coordinate positions can be detected. 1 is illustrated as a CCD (Charge Coupled Device) 10 and a lens 11 in FIG.

  Furthermore, since the relative attachment position of the writing detection means 6 with respect to the paper document 1 is automatically recognized from the photographed image of the barcode 2 of the barcode imaging means 5 described above, the writing pen 3 of the writing detection means 6 is used. By combining with relative coordinate detection information, the relative positional relationship between the paper document 1 and the writing pen 3 can always be recognized. Therefore, the writing information of the writing pen 3 is tracked and the writing information is digitized. be able to.

  FIG. 6 shows an embodiment in which a unit 7 in which the barcode image pickup means 5 and the writing detection means 6 are integrated is attached to the left side of the paper document 1. In this state, a captured image of the QR code captured by the barcode imaging unit 5 is as shown in FIG.

  The operations and effects of the present embodiment described with reference to FIGS. 5 to 7 will be described together. In the information processing apparatus according to the present embodiment, as a means for detecting the writing pen, it is possible to realize the coordinate detection of the writing pen with a simple configuration of the writing pen including an ultrasonic transmitter and a plurality of ultrasonic receiving units. Compared to the detection means of the guidance type digitizer, the structure of the drawing board to which the paper document is fixed can be simplified.

  Next, the problem in the case of limiting to the usage situation illustrated in FIG. 5 will be considered. In this state, when a left-handed user tries to perform a writing operation, the user's hand is interposed between the writing pen 3 and the writing detection means 6, and an ultrasonic wave transmitted from the writing pen 3 is obtained. Since it is blocked by the hand, it is not possible to detect the rewriting. In addition, the user's hand may come to the barcode 2 part during writing, and the barcode imaging means 5 may also interfere with barcode detection.

  Therefore, in such a situation, as shown in FIG. 8, a unit 7 in which the barcode image pickup means 5 and the writing detection means 6 are integrated is attached to the right side with respect to the paper document 1. The occurrence of bar code detection failure can be prevented. Note that a captured image of the QR code captured by the barcode imaging unit 5 in this state is as shown in FIG.

  Incidentally, a QR code photographed by the barcode imaging means 5 when the unit 7 in which the barcode imaging means 5 and the writing detection means 6 are integrated is attached to the lower side of the paper document 1 is shown in FIG. It becomes like this.

  Of course, not only the directionality of the barcode is detected from the image photographed by the barcode imaging means 5, but the document ID decoded into the barcode 2 is encoded and added to the object to be added. The resulting paper document 1 is specified. The information processing system is configured to manage information by combining the document ID of the paper document 1 and the rewriting information obtained by digitizing the rewriting.

  In the above description, the example using the “QR code” as the barcode 2 has been described, but there is no problem even if another barcode is used for the barcode 2. Barcode direction and information storage format are defined so that the same information can always be restored by encoding and decoding information, so that any barcode can be used to detect the same barcode Can be realized.

  In the description so far, the embodiment has been described in which the unit 7 in which the barcode imaging means 5 and the writing detection means 6 are integrated is attached to a plurality of positions on the drawing board 4 to which the paper document 1 is fixed. An example of an attachment / detachment mechanism for the unit 7 and an example of positioning with respect to the drawing board 4 when the unit 7 is attached will be described below.

  First, the schematic block diagram of the Example of the attachment / detachment mechanism of the unit 7 is shown in FIG. FIG. 12 is a perspective view from an oblique direction for further explaining the structure of FIG. 11 and 12, the unit 7 includes a clip-shaped clamping mechanism, and can be detached from the drawing board 4 by releasing the clamping portion 12 and fixed to the drawing board 4 by pressing the clamping portion 12.

  However, since the positional relationship with the paper document 1 fixed at a predetermined position on the drawing board 4 varies only by this, holes (positioning reference holes 14 and positioning holes 15) arranged at predetermined positions on the drawing board 4 and By positioning the positioning pin 13 arranged on a part of the drawing plate 4 contact surface of the unit 7, the positioning can be fixed at a predetermined position of the drawing plate 4 with a simple operation. A schematic configuration diagram thereof is shown in FIG.

  A round positioning reference hole 14 and an oval positioning hole 15 are arranged in a plurality of positions on the drawing board 4 as a set.

  Two positioning pins 16 serving as a reference for positioning are arranged on the contact surface of the drawing board 4 of the unit 7. By fitting the two positioning pins 13, the positioning reference hole 14, and the positioning hole 15 and press-contacting the clip-shaped clamp portion 12, it is possible to always position and fix the clip at a predetermined position. .

  The operation and effect of the present embodiment described with reference to FIGS. 8 to 12 will be described. In the information processing apparatus of the present embodiment, the position where the unit that integrates the barcode imaging means and the writing detection week plan can be automatically recognized, so the user must separately specify the unit mounting position every time. There is no need to execute it, and it is possible to always track the correct position of the writing pen with respect to the paper document simply by attaching the unit to the appropriate position according to the use situation and executing the writing work, and there is no positional deviation. Additional information can be obtained.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to this, and various modifications can be made without departing from the scope of the invention.

1 is a schematic configuration diagram of an information processing apparatus according to an embodiment of the present invention. 6 is a print example in which a plurality of barcodes are superimposed and printed on a paper document by the information processing system according to the embodiment of the present invention. FIG. 3 is an enlarged view of a QR code employed in the printing example of FIG. 2. It is the picked-up image which image | photographed QR code of FIG. 3 from the upper side with the barcode imaging means. It is a schematic block diagram of the writing detection means of this embodiment. It is a schematic block diagram when the unit of this embodiment is attached to the left side of a paper document. It is the picked-up image which image | photographed QR code of FIG. 3 from the left side by barcode imaging means. It is a schematic block diagram when the unit of this embodiment is attached to the right side of a paper document. It is the picked-up image which image | photographed QR code of FIG. 3 from the right side by barcode imaging means. It is the picked-up image which image | photographed QR code of FIG. 3 from the lower side by the barcode imaging means. It is a schematic block diagram of the attachment / detachment mechanism of the unit of this embodiment. It is the perspective view seen from the schematic block diagram bottom view part of the positioning mechanism of the unit of this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Paper document 2 Barcode 3 Writing pen 4 Drawing board 5 Barcode imaging means 6 Writing detection means 7 Unit 8 Ultrasonic receiving part 9 Ultrasonic transmitter 10 CCD
11 Lens 12 Clamping part 13 Positioning pin 14 Positioning reference hole 15 Positioning hole

Claims (5)

A plurality of barcodes encoded with document IDs for identifying the recording medium are arranged on the recording medium, together with an imaging unit for recognizing the barcode from the peripheral portion of the recording medium,
A writing detection means for detecting a movement position of the writing pen to be written on the recording medium;
The imaging means and the additional detection means are configured as an integral structure,
An information processing apparatus comprising a mechanism that can be attached to a plurality of locations around a recording medium. Having a holding member for holding a plurality of recording media;
The information processing apparatus according to claim 1, wherein the imaging unit and the writing detection unit are arranged at positions that do not interfere with a page turning operation of the recording medium. The writing pen includes an ultrasonic transmission unit,
The additional detection means includes a plurality of ultrasonic receiving units for receiving ultrasonic waves transmitted from the ultrasonic transmitting unit,
The information processing apparatus according to claim 1, further comprising coordinate detection means for detecting a position of the writing pen from reception data of ultrasonic waves by the ultrasonic reception unit.   Detection means for detecting the direction of the barcode photographed by the imaging means is provided, and the mounting position of the imaging means and the writing detection means configured in an integrated structure is automatically determined based on information on the direction of the photographed barcode. The information processing apparatus according to claim 1, wherein the information processing apparatus has a function of discriminating.   Printing a plurality of barcodes superimposed on a paper document on a recording medium so that at least one or more of the barcodes can be photographed from imaging means that can be attached to a plurality of locations around the recording medium. A recording apparatus.

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