KR101019143B1 - Moving trace measuring method of reader and reader thereof - Google Patents

Moving trace measuring method of reader and reader thereof Download PDF

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Publication number
KR101019143B1
KR101019143B1 KR1020090077389A KR20090077389A KR101019143B1 KR 101019143 B1 KR101019143 B1 KR 101019143B1 KR 1020090077389 A KR1020090077389 A KR 1020090077389A KR 20090077389 A KR20090077389 A KR 20090077389A KR 101019143 B1 KR101019143 B1 KR 101019143B1
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KR
South Korea
Prior art keywords
reader
position information
movement
information
pressure value
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KR1020090077389A
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Korean (ko)
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KR20110019815A (en
Inventor
이상규
이석주
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주식회사 네오랩컨버전스
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Priority to KR1020090077389A priority Critical patent/KR101019143B1/en
Priority to PCT/KR2010/005405 priority patent/WO2011021823A2/en
Publication of KR20110019815A publication Critical patent/KR20110019815A/en
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Publication of KR101019143B1 publication Critical patent/KR101019143B1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

PURPOSE: A trajectory measuring method of a reader is provided to simplify input and reduce character input time by the input of characters with a general pen. CONSTITUTION: If a pressure value of a reader exceeds a predetermined threshold value, location information of an initial point is extracted on a printed document in which code showing location information is printed(S220). The reader measures a relative coordinate change amount according to the movement of the reader(S230). The reader extracts the trajectory information of the reader based on the location information and relative coordinate change amount(S240). If the pressure value is lower than the threshold value, the reader extracts the location of the printed document as an end point location(S260).

Description

Moving trace measuring method of reader and reader thereof

The present invention relates to a method for measuring a movement trajectory of a reader and a reader to which the same is applied, and more particularly, to easily input and shorten a writing time of a character or a symbol by writing and storing / transmitting contents as if writing with a pen. The present invention relates to a moving trajectory measurement method of a reader and a reader using the same.

A portable device is an information processing device that performs various functions while the user moves freely, such as a PDA, a portable multimedia player (PMP), a mobile phone, and a smartphone.

In particular, a mobile communication portable device such as a mobile phone freely moves within a service area of a mobile communication system and communicates instantly with a desired counterpart anytime and anywhere through a mobile communication base station. Such mobile communication devices have been generally used because they are convenient to carry and free to communicate. In addition, in recent years, in addition to the basic service of making a phone call, various additional services such as memo writing, text message transmission, and photography are continuously being developed.

In particular, the memo writing service in mobile devices such as PDAs and electronic notebooks can be written anytime, anywhere, without having to carry writing instruments and papers such as memo, memo, or memo that are usually suddenly remembered. The text message transmission service is widely used because it is possible to simply and quickly deliver the contents created by the caller by creating a letter, a symbol, a number, an emoticon, etc., and transmitting the same to a designated counterpart through a mobile communication base station.

However, in order to write a memo or write a text message on an existing mobile device, first enter a memo writing mode or a text message mode by operating various function keys, and then write contents using a plurality of button keys, and then store the contents. Or transfer. Therefore, even when a message having a relatively short content needs to be pressed, a plurality of button keys have to be pressed through complicated steps, and thus, input is inconvenient and the writing time is long.

In addition, since the type of characters or symbols that can be written is limited to the characters or symbols already stored in the mobile device, there is a problem in that it is not possible to freely express various information intended by the sender, and the unique expression of the sender is impossible.

Accordingly, an object of the present invention is to provide a method of measuring a movement trajectory of a reader and a reader using the same, which facilitates an input and shortens the writing time of a character or a symbol by creating and storing / transmitting contents as if writing with a pen. Is in.

The movement trajectory measuring method of the reader according to the present invention for achieving the above object, in the method for tracking the trajectory according to the movement of the reader, the reader on the printed material is displayed a code indicating the position information for each position Reading position information of a starting point; Measuring, by the reader, an amount of change in relative coordinates according to the movement of the reader; And extracting, by the reader, movement trajectory information of the reader based on the position information of the starting point and the relative coordinate change amount.

On the other hand, in the method of measuring the movement trajectory of the reader according to the present invention, in the method of tracking the trajectory according to the movement of the reader, the reader is the position information of the starting point on the printed material in which a code indicating the position information for each position is printed Reading; Measuring, by the reader, an amount of change in relative coordinates according to movement of the reader and a pressure value by a user applied to the reader; And extracting, by the reader, movement trajectory information of the reader based on the position information of the starting point, the relative coordinate change amount, and the pressure value.

Preferably, when the movement of the reader is finished, the reader further comprises the step of reading the position information of the end point the movement is completed on the printed matter.

The extracting of the movement trajectory information of the reader may include reading position information on the printed matter of the reader at predetermined time periods.

On the other hand, the reader according to the invention is characterized in that the program for executing each step is installed.

According to the present invention, by writing and storing / transmitting the contents as if writing with a pen, it is possible to simplify the input and shorten the writing time of characters or symbols.

In addition, according to the present invention, information input and transmission freely expressing various characters or symbols can be made freely regardless of a font or a format previously stored in a mobile device.

In addition, according to the present invention, it is possible to perform a variety of input functions even without a separate keypad.

Hereinafter, with reference to the drawings will be described the present invention in more detail. It should be noted that the same elements in the figures are represented by the same numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

1 is a view for explaining the principle of the movement trajectory measurement method of the reader according to an embodiment of the present invention.

As shown in FIG. 1, the reader 100, which is a movement trajectory measurement object in the present invention, may be preferably manufactured in a pen-like form, and the user may write using the reader 100 having a pen-like form. In the reader 100, the handwriting trajectory of the user may be measured.

In order for the reader 100 to measure the movement trajectory of the reader 100 that the user moves, when the user writes using the reader 100, the user displays a code indicating the corresponding location information for each location. It should be written on the printed matter 150.

Specifically, when the writing starts, the reader 100 reads the position information of the starting point 1 on which the writing starts on the printed matter 150. On the other hand, the reader 100 measures in real time the pressure applied to the end of the reader 100 when writing the end of the reader 100 to the printed matter 150.

At the start of writing, the pressure value applied to the end of the reader 100 appears, and at the time when the pressure value appears, the reader 100 reads the position information on the printed matter 150. The position information at the time is stored as the position information of the starting point 1.

Afterwards, when the user continues writing on the end of the reader 100 on the printed matter 150, the pressure value applied to the end of the reader 100 continues to appear and the reader 100 is printed on the printed matter 150. Will move on.

That is, while the reader 100 moves while the pressure value continues to appear, the reader 100 measures the relative coordinate change according to the movement of the reader 100, and the position information of the starting point 1 and the reader 100. The reader 100 extracts movement trajectory information of the reader 100 based on the relative coordinate change amount measured according to the movement of.

On the other hand, if the pressure value applied to the end of the reader 100 does not appear, this means that writing has been stopped, the reader 100 at the time point that the pressure value does not appear, the reader 100 displays the position information on the printed matter 150. It reads, and stores the position information at this time as the position information of the end point (2).

That is, the reader 100 accurately measures the movement trajectory of the reader 100 through the position information of the start point 1, the relative coordinate change amount measured according to the movement of the reader 100, and the position information of the end point 2. It becomes possible.

Figure 2 is a flow chart illustrating the principle of the movement trajectory measurement method of the reader according to the present invention. Referring to Figures 1 and 2, when explaining the principle of the movement trajectory measurement method of the reader 100 according to the present invention, the reader 100 has a predetermined threshold value of the pressure value applied at the end of the reader 100; It is determined whether or not (eg, '0') is exceeded (S210).

When it is determined that the predetermined threshold value is exceeded, the reader 100 reads the position information of the point where the reader 100 is located on the printed matter 150 as the position information of the starting point 1 at that time (S220). .

After the measured pressure value exceeds the threshold value, when the reader 100 moves on the printed matter 150, the reader 100 measures the relative coordinate change according to the movement (S230). In measuring the relative coordinate variation, it is preferable to use a position movement measurement method in an optical mouse that is generally used, or to use a motion vector of an image acquired by the reader 100 on the printed matter 150. will be.

The reader 100 may extract the movement trajectory information of the reader 100 based on the measured relative coordinate change amount from the position information of the read writing start point 1 (S240).

The reader 100 transmits the extracted movement trajectory information to an external monitor or an external printer and outputs the same, thereby displaying the contents written by the user using the reader 100.

On the other hand, in the practice of the present invention, in step S230 described above, the reader 100 for measuring the relative coordinate change according to the movement of the reader 100 may continuously measure the pressure value applied to the reader 100 together. will be. In this case, the reader 100 may extract the movement trajectory information of the reader 100 based on the measured relative coordinate change amount and the continuously measured pressure value from the position information of the read writing start point 1. (S240).

As such, when extracting the movement trajectory information of the reader 100 in consideration of the pressure value, the reader 100 may acquire the movement trajectory information reflecting the thickness of the written character or symbol according to the degree of pressure applied. . Accordingly, when the content written by the user using the reader 100 is displayed by an external monitor or an external printer, the thickness of the letter or symbol written by the user may be reflected and displayed.

On the other hand, in the practice of the present invention, the user will be able to extract more accurate movement trajectory information of the reader 100 by checking the position information of the end point (2) which is the end point of the writing.

That is, the reader 100 determines whether the pressure value applied to the end of the reader 100 is equal to or less than a predetermined threshold value (for example, '0') (S250), and the pressure value is a predetermined threshold value. In the case where it is determined to be the following, the reader 100 reads the position information of the point where the reader 100 is located on the printed matter 150 as the position information of the end point 2 at the point in time (S260).

In addition, in the practice of the present invention, the reader 100 not only reads the position information of the end point 2, but also periodically in accordance with a predetermined time period while the reader 100 moves as shown in FIG. The position information on the printed matter 150 may be read, and the position information of the read reader 100 may be used to correct the movement trajectory information of the reader 100 extracted in step S240.
On the other hand, the absolute coordinate reading of the reader 100 is performed through the process of image acquisition-> preprocessing the acquired image (noise removal, shading removal, binarization of the image)-> labeling of data points-> decoding of data points. Is performed.
In particular, it is necessary to repeatedly perform matrix operations of various sizes in the preprocessing process, and use the central processing unit of the reader 100 at a high processing speed for a relatively long time, thereby causing a large power consumption. For reference, if the size of the screen buffer for calculating the amount of calculation is horizontal n and m, it is necessary to perform n * m memory reads, operations, and writes.
On the other hand, the relative coordinate reading is performed through the process of acquiring an image and deriving a motion value through a simple comparison with the previously acquired image, thus eliminating the need for several matrix operations in the preprocessing step as in absolute coordinate reading. As a result, it is not necessary to decode data points with high algorithmic complexity, so that no additional operation is required and motion calculation can be performed even when data points are lost.
As such, utilizing relative coordinate operations above all can reduce the power consumption of the central computing device due to the advantage of not having to constantly maintain high computing power.
However, when the reader 100 is used as a writing pen, since the writing pen floats on the writing surface due to its characteristics, it is not possible to permanently obtain the relative coordinates. There is a limit.
That is, for this reason, the present invention basically utilizes relative coordinate calculation in extracting movement trajectory information of the reader 100, and moves by relative coordinate calculation through intermittent execution of absolute coordinate calculation with high degree of power consumption. By correcting the trajectory information, the power consumption in the central computing device of the reader 100 is minimized and the precision of the movement trajectory information is optimized.
That is, the absolute coordinates must be acquired intermittently while recording the relative coordinates, and must be at least once within the "one writing and detaching action" as the minimum unit of the acquisition cycle of the absolute coordinates. For example, since 11 strokes are input while writing two letters of "Hangul", 11 or more absolute coordinates are required. In the present invention, the writing pen touches the writing surface, or writing is performed. It would be desirable to obtain absolute coordinates at the moment they fall off the plane.

On the other hand, the reader 100 reads the position information of the end point 2 which is the point where the writing is finished, and then corrects the movement trajectory information of the reader 100 extracted in step S240 based on this, thereby the reader 100 The movement trajectory information of can be measured more accurately.

In addition, when the reader 100 reads the position information of the end point 2, the reader 100 recognizes this as the end of writing and moves the movement trajectory information measured up to the point in time when the position information of the end point 2 is read. It is separated from (S270).

The movement trajectory information of the reader 100 separated as described above is transmitted to the reader 100 and simultaneously transmitted to a server, an external monitor, or an external printer that manages the movement trajectory of the reader 100 (S280).

On the other hand, the reader 100 according to the present invention will be installed a program to execute each step of the above-described step S210 to step S270.

While the above has been shown and described with respect to preferred embodiments and applications of the present invention, the present invention is not limited to the specific embodiments and applications described above, the invention without departing from the gist of the invention claimed in the claims Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

1 is a view for explaining the principle of the movement trajectory measuring method of the reader according to an embodiment of the present invention,

2 is a flow chart illustrating a principle of a moving trajectory measuring method of a reader according to the present invention; and

3 is a view for explaining the principle of the movement trajectory measuring method of the reader according to another embodiment of the present invention.

Claims (5)

In the method for tracking the trajectory according to the movement of the reader, Determining, by the reader, whether a pressure value applied to the reader exceeds a predetermined threshold value; When the reader determines that the pressure value exceeds a predetermined threshold value, reading the position information of the starting point on the printed matter on which the code indicating the position information is displayed for each position; Measuring, by the reader, an amount of change in relative coordinates according to the movement of the reader; Extracting, by the reader, movement trajectory information of the reader based on the position information of the starting point and the relative coordinate change amount; Determining, by the reader, whether the pressure applied to the reader is equal to or less than a predetermined threshold value; And When the reader determines that the pressure value is equal to or less than a predetermined threshold value, the reader reads the position information of a point located on the printed matter as position information of an end point. Including; Extracting the movement trajectory information of the reader, And reading, by the reader, position information which is an absolute coordinate value on the printed matter of the reader at predetermined time periods, And the position information read at each predetermined time period is used to correct the movement trajectory information. In the method for tracking the trajectory according to the movement of the reader, Determining, by the reader, whether a pressure value applied to the reader exceeds a predetermined threshold value; When the reader determines that the pressure value exceeds a predetermined threshold value, reading the position information of the starting point on the printed matter on which a code indicating the position information is printed for each position; Measuring, by the reader, an amount of change in relative coordinates according to movement of the reader and a pressure value by a user applied to the reader; Extracting, by the reader, movement trajectory information of the reader based on the position information of the starting point, the relative coordinate change amount, and the pressure value; Determining, by the reader, whether the pressure applied to the reader is equal to or less than a predetermined threshold value; And When the reader determines that the pressure value is equal to or less than a predetermined threshold value, the reader reads the position information of a point located on the printed matter as position information of an end point. Including; Extracting the movement trajectory information of the reader, And reading, by the reader, position information which is an absolute coordinate value on the printed matter of the reader at predetermined time periods, And the position information read at each predetermined time period is used to correct the movement trajectory information. delete delete The reader in which the program which executes each said step of Claim 1 or 2 is installed.
KR1020090077389A 2009-08-21 2009-08-21 Moving trace measuring method of reader and reader thereof KR101019143B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020090077389A KR101019143B1 (en) 2009-08-21 2009-08-21 Moving trace measuring method of reader and reader thereof
PCT/KR2010/005405 WO2011021823A2 (en) 2009-08-21 2010-08-17 Method for measuring movement path of a reader, and reader adopting same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090077389A KR101019143B1 (en) 2009-08-21 2009-08-21 Moving trace measuring method of reader and reader thereof

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KR102337258B1 (en) * 2014-10-17 2021-12-08 주식회사 네오랩컨버전스 Electronic pen, electronic device associated with electronic pen and method for controlling electronic device
KR102286587B1 (en) * 2014-10-17 2021-08-05 주식회사 네오랩컨버전스 Electronic pen
CN112558797B (en) * 2021-02-19 2021-07-06 深圳市千分一智能技术有限公司 Active pen, control method and device thereof, and computer-readable storage medium

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Publication number Priority date Publication date Assignee Title
KR20030061408A (en) * 2000-11-25 2003-07-18 실버브룩 리서치 피티와이 리미티드 Orientation sensing device
JP2005078487A (en) 2003-09-02 2005-03-24 Hitachi Maxell Ltd Handwritten input device and authentication method of handwritten input
KR20080106621A (en) * 2007-06-04 2008-12-09 제노젠(주) Paper-based electronic pocket note, electronic pen, workstation, information transmitting server, handwritten information processing method and information management system
KR20080109341A (en) * 2007-06-12 2008-12-17 제노젠(주) Digital pocket notebook for journalist used in information management system based on electronic pen for journalist

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030061408A (en) * 2000-11-25 2003-07-18 실버브룩 리서치 피티와이 리미티드 Orientation sensing device
JP2005078487A (en) 2003-09-02 2005-03-24 Hitachi Maxell Ltd Handwritten input device and authentication method of handwritten input
KR20080106621A (en) * 2007-06-04 2008-12-09 제노젠(주) Paper-based electronic pocket note, electronic pen, workstation, information transmitting server, handwritten information processing method and information management system
KR20080109341A (en) * 2007-06-12 2008-12-17 제노젠(주) Digital pocket notebook for journalist used in information management system based on electronic pen for journalist

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KR20110019815A (en) 2011-03-02
WO2011021823A2 (en) 2011-02-24
WO2011021823A3 (en) 2011-04-28

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