WO2005076115A2 - Stylet numerique - Google Patents

Stylet numerique Download PDF

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Publication number
WO2005076115A2
WO2005076115A2 PCT/EP2005/050307 EP2005050307W WO2005076115A2 WO 2005076115 A2 WO2005076115 A2 WO 2005076115A2 EP 2005050307 W EP2005050307 W EP 2005050307W WO 2005076115 A2 WO2005076115 A2 WO 2005076115A2
Authority
WO
WIPO (PCT)
Prior art keywords
pen
information
mode
context
captured
Prior art date
Application number
PCT/EP2005/050307
Other languages
English (en)
Other versions
WO2005076115A3 (fr
Inventor
Jose Antonio Magana
Original Assignee
Hewlett-Packard Development Company, L.P.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GBGB0402015.2A external-priority patent/GB0402015D0/en
Application filed by Hewlett-Packard Development Company, L.P. filed Critical Hewlett-Packard Development Company, L.P.
Publication of WO2005076115A2 publication Critical patent/WO2005076115A2/fr
Publication of WO2005076115A3 publication Critical patent/WO2005076115A3/fr

Links

Classifications

    • 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
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
    • 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
    • G06F3/0304—Detection arrangements using opto-electronic means
    • G06F3/0317—Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface
    • G06F3/0321—Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface by optically sensing the absolute position with respect to a regularly patterned surface forming a passive digitiser, e.g. pen optically detecting position indicative tags printed on a paper sheet
    • 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

Definitions

  • This invention relates to digital pens suitable for use in digital pen and paper systems, sometimes called pen computing. It especially but not exclusively relates to systems where a pen is used to read a pattern of position identification markings printed on digital documents.
  • the pen can determine the relative position of strokes made on the document by the pen. These may be recorded together with time information to construct a set of data from which the strokes can be reconstructed, and hence the information they encode. This information is typically stored in the pen until the user is able to send it to a remote device for processing. Other systems are also known which obtain this information without the need for a pattern of position markings.
  • the pen is connected by a Universal Serial Bus (USB) cable or wirelessly to a processing device such as a mobile telephone or a personal computer.
  • the processing device receives data representing information captured by the pen and sends the data across a network to a server on which digital paper information is stored.
  • the server identifies the document which has been marked by the pen and returns to the processing device information about how the document should be handled. This information may identify an application, perhaps stored on the processing device or held remotely, which enables the information from the pen to be processed.
  • HP Form Automation System Information is written on a form using a digital pen, which records the information digitally. Once the form is completed by marking a special box on the form with the pen the information is sent to a server, which processes the information together with knowledge of the layout of the form published on the server. This automates the collection of information from completed forms improving workflow in systems which require the completion of many forms.
  • the invention comprises a digital pen having a writing stylus adapted to write handwritten markings onto a surface and which is adapted to capture those handwritten markings digitally, and in which the pen further includes a mode selection means which alters the operating mode of the pen such that a first context is given to information captured by the pen in a first mode which differs from a second context given to information captured by the pen when it is in a second, different, mode of operation.
  • a mode selection means which alters the operating mode of the pen such that a first context is given to information captured by the pen in a first mode which differs from a second context given to information captured by the pen when it is in a second, different, mode of operation.
  • One way in which it is envisaged that giving a context to the captured information enhances the functionality of the pen is that it may allow strokes made by a user to be interpreted in different ways depending on the operation mode that is selected. For example, the user may select a context which indicates that information captured by the pen represents textual data. The pen then captures information which is to be interpreted as text. The user may draw a circle which would be interpreted as the letter "O" or the number zero. On the other hand, the user may select a different mode in which the context given to the captured information indicates that it represents gestures from a predefined set of gestures which apply an action to data on a document. The same circle could then be interpreted in a different way.
  • a circle or other closed loop shape could perhaps be assigned as the gestured for highlighting any data on a document that is within the circle and deselecting the data.
  • the pen may operate in an erase mode in which data marked by the pen is erased.
  • Language mode- strokes are interpreted as text in the selected language
  • Gesture mode- strokes are interpreted as special symbols or gestures which do not fall within a text or numerical data set, the gestures perhaps corresponding to special actions to be performed.
  • a gesture may be considered as any markings made by the pen on a document which are intended as something more than handwritten markings.
  • Correction mode- strokes are used to correct strokes already made, or to change the context such as highlighting, inserting, deleting etc).
  • the pen or any post processing software may be arranged such that special symbols or gestures might only be recognised as such when the pen is in the gesture mode and not recognised as such in another mode.
  • This provides the advantage that there is no conflict between markings made by a user which are intended to be gestures that have a special meaning (such as a circle) and the same markings made by the user which are not intended to be interpreted as gestures.
  • Gestures may have different meanings depending on the meaning of one or more strokes that preceded the gesture.
  • a user may wish to draw a circle on the document to illustrate the site of the accident to the insurer.
  • Any marking can be defined as a gesture and can be given a special meaning.
  • An example of a set of gestures and the manner in which gestures can be identified, defined and employed to apply actions is known from EP1335272A1 (Microsoft), the disclosure of which is incorporated herein by reference.
  • EP1335272A1 Microsoft
  • By analysing the captured information together with the context given to the information the correct interpretation of the strokes can be made without confusion.
  • This overcomes problems with prior art solutions which do not apply context information and in which it may be uncertain whether markings represent gestures or text or even drawing. Indeed, the pen need not know which markings are gestures and which are not, the identification process being performed by software which retrieves the information from the pen.
  • the pen may be adapted to acquire information about the pen strokes in many different ways. However, it is most preferred that the pen is adapted to read a position-determining pattern printed on a surface to enable the position of the pen, and hence strokes, to be determined.
  • the pen may be provided with a camera which captures an image of a document around or next to the nib when making markings so as to capture the position pattern.
  • the pen could be used to write on any surface although it is most preferred that the surface is that of a paper document onto which the pattern is applied using standard printing techniques.
  • Digital documents that can be read by the pens may be printed out on demand by a user using a local printer (e.g. ink jet or laser printer, or LEP or other printer) or may be preprinted, perhaps using an offset printing process.
  • the surface could, nevertheless be a surface of a whiteboard or the like.
  • the pen may not be of the kind that looks for an optically detected pattern on a surface in order to capture stroke information.
  • the pen may determine its position in some other way, for example by using a known starting point, or way marker, on the page/document and using internal gyroscopes and/or accelerometers to determine its position; or the pen may triangulate its position using triangulation signals emitted by emitters.
  • a pressure sensor may be provided which measures the pressure applied to the nib of the pen and which enables the pen to identify when pressure is being applied to the stylus by a user when writing. Only when pressure is applied may the pen capture stroke information. This prevents false information being captured as the pen is waved around above a document or perhaps simply carried around by a user.
  • the mode selection means may be physically embodied in hardware, perhaps as a switch or button. This may be a touch sensitive switch or may include one or more moving parts such as a rocker switch or button. Providing a switch or button which has moving parts provides tactile feedback to the user about the position of the switch.
  • the selection means may have as many operating positions as the number of modes of operation of the pen. Hence, a switch or button which can be placed in two positions may be provided with a pen that can be used in two different operating modes. Alternatively, a change in the position of the switch may be used to change between modes. This allows a selection means to select between more modes than it has possible positions, perhaps by cycling through a set of modes in a predetermined order.
  • One or more lights may be provided on the pen to indicate the status of the pen as selected by the mode selection means.
  • a light emitting diode may be used which may be illuminated in a first mode and extinguished in the second.
  • an audible indication may be provided to inform the user of the selected context of the pen.
  • the pen may be arranged to make markings on the document when strokes are made whose colour differs according to the operating mode of the pen, and hence the context that has been selected. This may be achieved by providing more than one nib, and a means for presenting only one nib to a document at a time according to the mode that has been selected.
  • a gesture can be distinguished from text, for example, just by looking at the colour used for the markings if a text and gesture mode are assigned different colour inks.
  • a suitable retraction mechanism may be provided which moves the nibs into and out of the body of the pen such that one nib protrudes more than any other when using the pen.
  • the information captured by the pen may be stored together with one or more associated context values dependent upon the mode of operation of the pen as set by the mode selection means. These values will indicate the context that is to be applied to each of the strokes captured by the pen. Hence, every time a stroke is made the status of the selection means may be checked and an appropriate entry stored in memory with the stroke information.
  • the information captured by the pen comprises a set of stroke/time data pairs.
  • the context information which is dependent upon the status of the pen, may also be associated with each pair to form a data triplet which indicates stroke/time/context.
  • the information may be stored using an Extended Mark-Up language, with a unique field bei ng applied to the strokes, timings and context respectively.
  • the context value may be a numeric value assigned to a mode, or a text string such as TexlMode, GestureMode, EditMode etc.
  • the pen of the invention provides context information, which can be stored in the pen and may be used to alter the meaning given to information captured by the pen. It may also, or alternatively, alter the way in which the information is captured or the way in which information that has been captured is processed by the pen or stored in the pen. Thus, rather than simply storing a marker alongside the strokes to indicate a context for each one, some action may be taken on the strokes according to the context. An example of such an action is not transmitting from the pen strokes which have been marked as deleted in an erase mode of the pen.
  • the pen may have a data capture mode in which any captured strokes are stored in memory as information after some initial preprocessing.
  • the amount or type of pre-processing applied may be altered according to the operating mode selected.
  • the invention provides a combination of a digital pen according to the first aspect of the invention and receiver for receiving captured information about handwriting from the pen, in which the receiver processes the captured handwriting information received from the pen differently dependent upon the context value given to the information by the pen.
  • the invention provides a method of processing information captured by a digital pen which comprises adding context information to the captured information prior to transmitting the information from the pen to a receiving device, the method further comprising altering the pen during capture of information to alter the context information added to subsequently captured information.
  • the invention provides a digital pen suitable for use in a digital pen and paper system, the pen having a nib adapted to write handwritten markings onto a digital document which includes a pattern of position determining markings and being adapted to capture those handwritten markings digitally by detecting the location of the pen relative to the pattern of markings, and in which the pen further includes a switch or button which can be operated by a user of the pen to change the operating mode of the pen such that a first context is given to information captured by the pen in a first mode which differs from a second context given to information captured by the pen when it is in a second, different, mode of operation.
  • the invention provides a receiver which is adapted to receive information captured by a digital pen comprising: receiving means for receiving information from a pen indicative of at least one stroke made by a user of the pen on a document and information indicative of an operating mode of the pen as set by the user whilst the stroke was made; and v. processing means arranged to determine from the context whether the stroke was intended to be a gesture, and in the event that it is intended to be a gesture process the information to determine the gesture.
  • the invention provides a computer readable medium including a program which is adapted to interpret information captured by a digital pen, the program comprising instructions for performing the steps of: receiving information from a pen indicative of at least one stroke made by a user of the pen on a document; receiving information indicative of an operating mode of the pen as set by the user whilst the stroke was made; determining from the context whether the stroke was intended to be a gesture; and in the event that it is intended to be a gesture processing the information to determine the gesture.
  • the invention provides a computer readable medium including a program which is adapted to be executed by the processor of a digital pen to interpret information captured by the digital pen, the program comprising instructions for performing the steps of: capturing information indicative of at least one stroke made by a user of the pen on a document; receiving information indicative of an operating mode of the pen as set by the user whilst the stroke was made; determining from the context whether the stroke was intended to be a gesture; and in the event that it is intended to be a gesture processing the information to determine the gesture.
  • the information indicative of the at least one stroke and the operating mode may be received substantially together, perhaps as an input file retrieved from the pen. Alternatively, the information may be received at different times. For example, the operating mode information may be retrieved whenever the operating mode of the pen is altered by the user, and the stroke information may be received whenever one or more strokes have been made.
  • Figure 1 shows a document suitable for use in a digital pen and paper system
  • Figure 2 shows in detail part of the document of Figure 1;
  • Figure 3 shows an embodiment of a digital pen in accordance with one aspect of the present invention
  • Figure 4(a) illustrates the document of Figure 1 after being completed by a user with the pen as illustrated in Figure 3 in a text entry mode in accordance with one aspect of the invention
  • Figure 4(b) shows the document after checking and revision by the user with the pen of Figure 3 used in a symbol entry mode in accordance with one embodiment of the invention
  • Figure 4(c) shows the logical interpretation of the strokes made on the document after bei ng checked by the pen as they would be interpreted when retrieved from the pen memory
  • Figure 5 is an alternative embodiment of a pen in accordance with an aspect of the invention which includes an eraser.
  • the following description relates to an embodiment of a pen in accordance with the first aspect of the invention which forms a part of a digital pen and paper system.
  • the system includes digital paper which carries a pattern of position identification markings and a pen which is adapted to read the markings.
  • the pen and paper form part of a Hewlett Packard Forms Automation System. It should, nevertheless, be understood that the invention, in at least one arrangement, might not to be limited to the use of a pen with digital paper documents of this kind or automation systems of this type which is only used by way of example.
  • a document 100 for use in a digital pen and paper based forms automation system comprises a carrier 102 in the form of a single sheet of paper 104 with position identifying markings 106 printed on some parts of it to form areas 107 of a position identifying pattern 108. Also printed on the paper 104 are further markings 109 which are clearly visible to a human user of the form, and which make up the content of the document 100.
  • the content 109 will obviously depend entirely on the intended use of the document. In this case an example of a very simple two page questionnaire is shown, and the content includes a number of boxes 110, 112 within which the user can write information such as the user's name 114 and a document identification number 116.
  • the content further comprises a number of check boxes 118 any one of which is to be marked by the user, and two larger boxes 120, 121 in which the user can write comments.
  • the form content also includes a send box 122 to be checked by the user when he has completed the questionnaire to initiate a document completion process by which pen stroke data is forwarded for processing, and typographical information on the form such as the headings or labels 124 for the various boxes 110, 112, 118, 120.
  • the position identifying pattern 108 is only printed onto the parts of the form which the user is expected to write on or mark, that is within the check boxes 118, the comments boxes 120, 121 and the send box 122. Referring to Figure 2, the position identifying pattern 108 is made up of a number of dots 130 arranged on an imaginary grid 132.
  • the grid 132 can be considered as being made up of horizontal and vertical lines 134, 136 defining a number of intersections 140 where they cross.
  • One dot 130 is provided at each intersection 140, but offset slightly in one of four possible directions up, down, left or right, from the actual intersection 140.
  • the dot offsets are arranged to vary in a systematic way so that any group of a sufficient number of dots 130, for example any group of 36 dots arranged in a six by six square, will be unique within a very large area of the pattern. This large area is defined as a total imaginary pattern space, and only a small part of the pattern space is taken up by the pattern on the document 100.
  • FIG. 1 shows an embodiment of a pen 300 in accordance with one aspect
  • the pen 300 comprises a writing stylus 310, and a camera 312 made up of an infra red (TR) LED 314 and an TR sensor 316.
  • the camera 312 is arranged to image an area adjacent to the tip 311 of the pen stylus 310.
  • a processor 318 processes images from the camera 312.
  • a pressure sensor 320 detects when the stylus 310 is in contact with the document 100 and triggers operation of the camera 312. Whenever the pen is being used on a patterned area of the document 100, the processor 318 can therefore determine from the pattern 108 the position of the stylus of the pen whenever it is in contact with the document 100. From this it can determine the position and shape of any marks made on the patterned areas of the document 100. This information is stored in a memory 322 in the pen as it is being used.
  • the pen also includes a mode selection means 324 which alters the mode of operation of the digital pen.
  • a mode selection means 324 which alters the mode of operation of the digital pen.
  • a context marker such as a flag or context value indicative of the selected mode is then applied alongside the information in the memory. This could indicate the time at which the mode of the pen has been altered, or may be a set of markers indicating the mode selected, with one marker of the set being stored alongside each stroke/time pair in the memory.
  • the later would require more memory to store the information and so is not preferred but is a possible implementation which may in some cases prove simpler to implement.
  • the mode selection means 324 comprises a rocker switch located at the end of the pen 300 distal from the stylus so as not to interfere with the users grip of the pen.
  • the switch is connected electrically to the processor to enable the processor to tell what position the switch is in. It can be moved between two positions, which provide the pen of this embodiment with two different operating modes.
  • the pen may be arranged to cycle through a sequence of different modes whenever the selection means is operated. In theory, this could permit the pen to operate an unlimited number of modes.
  • a small indicator lamp 326 is also provided to indicate at a glance the status of the pen. In the embodiment this is a dual colour light emitting diode (LED) which illuminates in one colour for a first mode and a different colour for a second mode.
  • LED light emitting diode
  • the information can be stored in many forms but in this preferred embodiment it is envisaged that the information is stored as a data file which contains a set of data consisting of pairs of time and position information. Each pair indicates the time at which a stroke is made by the pen and its position within the pattern space on a document. By reading the information in the string the pen strokes can be reconstructed.
  • Figure 5 illustrates a typical set of information stored in the memory of the pen.
  • this is recorded in a document completion process, for example by making a mark with the pen in the send box 122.
  • the pen is arranged to recognise the pattern in the send box 122 and determine from that pattern the identity of the document 100.
  • the information stored regarding the location of a user's pen strokes in the memory 320 is then transferred to a suitable processor upon the user placing the pen 302 in the send box 122.
  • This processor has access to information about the content of the form and can use this to determine how the user has completed the form.
  • the memory stores information which includes context alongside the pen stroke information
  • the context intended by the user can be determined from the information transmitted by the pen. This permits the information to. be processed in the manner most appropriate to the selected context.
  • the form completion process can be greatly enhanced.
  • the sample document 100 comprises a simple insurance claim form.
  • the form is stored on a server which runs a pen information processing application.
  • the send checkbox 122 on the form tells the pen that the pen information should be sent to the server when the checkbox has been checked.
  • Fig 4(a) shows the form of Figure 1 after a user has initially completed the form.
  • This initial stage is completed with the pen set to a first of its two modes which is a "Text Entry" mode.
  • a context flag is associated with the captured strokes to indicate that they represent data entered on the form, primarily text.
  • gesture can be understood best by reference to the teachings of EP1335272A2 which also describes a method of defining and recognising gestures from markings. It should be understood, nevertheless, that the interpretation of the term given in that document should not in any way be considered limiting on the scope of this invention.
  • a gesture is a marking which is intended to be interpreted as something more than just a marking, the intention being indicated by the context set by the pens operating mode.
  • the user marks the form with strokes that correspond to predefined gestures as shown in Figure 4(b).
  • a circle 130 gesture is drawn around the "good" checkbox 118. This gesture is defined to represent an action of "unchecking" a check box.
  • the strokes corresponding to the circle are stored in the pen along with a flag to show that the pen is in the gesture mode.
  • the user also marks a line 140 through the word "none" in the text box 121. This is a gesture to indicate that data underneath the line is to be deleted.
  • Many other gestures can be conceived and the gestures mentioned here (circles and lines) could be associated with different actions.
  • the user checks the send box.
  • the information is then sent from the pen to the base station and subsequently to the remote server.
  • the application processes the pen information to determine what the user has marked on the form by analysing the pen strokes. It uses the context information to tell whether to process the strokes as text or as gestures. Because this information is available, the application can easily determine that the circle around the check box is intended to be a gesture representing an unchcck action. Without this extra dimension to the pen information it would not be possible to tell that the circle was definitely intended to have such a meaning and that it was not simply an incorrect attempt to check the box by drawing a circle in it or an error.
  • the application can also apply character recognition to any strokes received in the text entry mode but not to strokes made in the special symbol mode. This increases the speed and accuracy with which the information can be processed.
  • Figure 4(c) shows the logical interpretation of the form when the captured information is processed. As can be seen, the word none that has been struck through in the text box 121 is not present. Also the Good checkbox 118 is unchecked. This reflects the wishes of the person completing the form.
  • the application software can contained a standardised set of gestures which it will attempt to recognise from the pen information. Alternatively, it may provide a facility for a user to define their own gestures or to modify the set of gestures. It will be appreciated that whilst our currently preferred embodiment of the invention uses a camera to capture position- determining markings printed on a sheet, typically paper, other embodiments may have their pen and/or eraser, or combined pen and eraser, determine their positions in some other way, for example using gyroscopes, accelerometers, and dead-reckoning from a start point on the document.
  • a pen may be provided which has a first mode for text entry or for capturing other markings and a second mode for the deletion of markings.
  • a pen of this kind is disclosed in GB0321175.2, the content of which is incorporated herein by reference in its entirely. An embodiment of such a pen is shown in Figure 5 of the accompanying drawings.
  • the pen comprises a writing stylus adapted to write handwritten markings onto the paper and being adapted to capture those handwritten markings digitally, and the pen also having an eraser adapted to erase markings on an area of the paper and being adapted to capture the position of the erased area digitally.
  • the pen 400 comprises a writing stylus 402, typically an ink nib or a pencil nib, an eraser 404 and a camera 405 made up of an infra red (IR) LED 406 and anslR sensor 408.
  • IR infra red
  • Both the writing stylus 402 and the eraser 404 are operable to project at an end of the pen 400 from which the IR LED 406 illuminates the document 100.
  • the writing stylus 402 is retractable and biasable forwards by means of a spring loaded catch mechanism 410 mounted within the body pen 400.
  • the eraser 404 is also retractable and biasable forwards by a second spring loaded catch mechanism 412, such that either of the writing stylus 402 or the eraser 404 can project from beyond a forward end of a body of the pen 400 and can be in contact with the document 100 at any one time.
  • the retraction of either the stylus 402 or the eraser 404 is detected by a status determining means which results in a flag being set in a processor 413 within the pen 400 such that the status of stylus 402 and the eraser 404 are typically recorded in a memory 414.
  • a sensor or sensors (not shown) are provided to determine whether the stylus or the eraser is projecting from the pen 400.
  • the recording of the status of the stylus 402 and the eraser 404 lakes place either in a sequential temporal time frame by the use of a clock within the processor to produce a history of pen strokes, or by determining the sum effect of the pen strokes upon the document at each point within the document (e.g. by each pixel in the electronic version of the document having a "written or", or not, value, and the pen altering digital pixel values as it physically marks the page — the eraser function re- setting a pixel value to "not written on”).

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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)
  • User Interface Of Digital Computer (AREA)
  • Character Discrimination (AREA)
  • Position Input By Displaying (AREA)

Abstract

L'invention concerne un stylet numérique adapté pour être utilisé dans un système de papier et de stylet numérique, formé d'un stylet d'écriture adapté à l'écriture manuelle de marques sur une surface, et adapté pour capturer numériquement lesdites marques écrites manuellement. Le stylet comprend également au moins un commutateur permettant de changer le mode d'exploitation du stylet de manière à appliquer un premier contexte aux informations capturées par le stylet dans un premier mode, différent d'un contexte appliqué aux informations lorsque le stylet est utilisé dans un second mode d'exploitation différent. Le contexte appliqué dans un mode spécifique indique, de préférence, qu'un utilisateur marque des symboles spéciaux représentant des annotations ou d'autres fonctions destinées à être appliquées à certaines parties du document.
PCT/EP2005/050307 2004-01-30 2005-01-25 Stylet numerique WO2005076115A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0402015.2 2004-01-30
GBGB0402015.2A GB0402015D0 (en) 2003-09-10 2004-01-30 A digital pen

Publications (2)

Publication Number Publication Date
WO2005076115A2 true WO2005076115A2 (fr) 2005-08-18
WO2005076115A3 WO2005076115A3 (fr) 2005-12-01

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009135318A1 (fr) * 2008-05-09 2009-11-12 Smart Technologies Ulc Système d'entrée interactif et outil de type stylo destiné à ce système
GB2432233B (en) * 2005-10-29 2011-04-20 Hewlett Packard Development Co User-interface system, method & apparatus
DE102014106838A1 (de) * 2014-05-15 2015-11-19 Stabilo International Gmbh Driftkompensation / optische Absolutreferenzierung
WO2018156100A1 (fr) * 2017-02-21 2018-08-30 Hewlett-Packard Development Company, L.P. Zones de commande sur des supports
EP2701056B1 (fr) * 2012-08-24 2021-10-27 Samsung Electronics Co., Ltd. Procédé de fonctionnement d'une fonction de crayon et dispositif électronique le supportant

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WO2001048590A1 (fr) * 1999-12-23 2001-07-05 Anoto Ab Commande ecrite

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WO1999048268A1 (fr) * 1998-03-19 1999-09-23 Siemens Aktiengesellschaft Dispositif pour la communication mobile
WO2001016872A1 (fr) * 1999-08-30 2001-03-08 Anoto Ab Systeme et dispositifs d'enregistrement electronique d'informations ecrites
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2432233B (en) * 2005-10-29 2011-04-20 Hewlett Packard Development Co User-interface system, method & apparatus
WO2009135318A1 (fr) * 2008-05-09 2009-11-12 Smart Technologies Ulc Système d'entrée interactif et outil de type stylo destiné à ce système
CN102016764A (zh) * 2008-05-09 2011-04-13 智能技术无限责任公司 交互输入系统和及其笔工具
EP2701056B1 (fr) * 2012-08-24 2021-10-27 Samsung Electronics Co., Ltd. Procédé de fonctionnement d'une fonction de crayon et dispositif électronique le supportant
DE102014106838A1 (de) * 2014-05-15 2015-11-19 Stabilo International Gmbh Driftkompensation / optische Absolutreferenzierung
DE102014106838B4 (de) 2014-05-15 2022-10-13 Stabilo International Gmbh Driftkompensation / optische Absolutreferenzierung
WO2018156100A1 (fr) * 2017-02-21 2018-08-30 Hewlett-Packard Development Company, L.P. Zones de commande sur des supports
US11347325B2 (en) 2017-02-21 2022-05-31 Hewlett-Packard Development Company, L.P. Control areas on media

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