Abstract: A computer-implemented method (100) for generating feedback based on a handwritten text, comprises the steps of initializing (110) a writing instrument (10) to be used in a writing operation comprising a handwritten text and capturing and processing (120) the handwritten text to generate digital text data. The method further comprises the steps of identifying (130) at least one handwritten text attribute associated with the digital text data, comparing (140) the at least one handwritten text attribute with predefined textual feature attributes, and generating (150) a textual feature based on the compared at least one handwritten text attribute and predefined textual feature attributes. In addition, the method comprises the steps of modifying (160) the digital text data using the textual feature and generating (170) feedback to a user (U) based on the modified digital text data.

Abstract: A method of manufacturing a metallic ball pen tip for a writing instrument comprising a feeding passage extending in an axial direction, the feeding passage reaching in a housing configured to receive a ball, the housing being defined by a cylindrical wall and a wall, the method comprising the steps providing a preform of the metallic ball pen tip comprising the feeding passage and the housing, the housing being defined by the cylindrical wall and a wall, machining the wall so as to obtain a stepped wall, broaching feeding grooves in the stepped wall and coining the stepped wall with a spherical die so as to obtain the ball seat, and a metallic ball pen tip obtained by the method.

Abstract: The present invention concerns a process for preparing in situ an aqueous gel ink with fixed color comprising the following steps: (i) preparing a gel-based matrix of aqueous ink comprising ester(s) of retinol represented by formula (I), and (ii) adding a solution of gold salts (Au3+) to the gel-based matrix of aqueous ink prepared in step (i), to obtain an aqueous gel ink with fixed color with gold nanoparticles dispersed therein. The present invention also relates to an aqueous gel ink with fixed color obtained according to the process of the invention, comprising said ester of retinol represented by formula (I) and gold nanoparticles. The invention finally concerns a writing instrument comprising an aqueous gel ink with fixed color according to the invention.

Abstract: The invention relates a process for preparing an aqueous gel ink with fixed color comprising the following steps: (i) preparing a gel-based matrix of aqueous ink; (ii) preparing an aqueous suspension of gold or silver nanoparticles with a fixed color; (iii) adding the aqueous suspension of gold or silver nanoparticles obtained in step (ii) to the gel-based matrix of aqueous ink obtained in step (i).

Abstract: The present invention concerns a process for preparing in situ an aqueous gel ink with fixed color comprising the following steps: (i) preparing a gel-based matrix of aqueous ink comprising reducing agent chosen in the group consisting of citric acid and/or derivatives of citric acid, (ii) adding a solution of gold salts, (iii) adding iron powder, (iv) adding polyvinylpyrrolidone to obtain an aqueous gel ink with fixed color, wherein the steps (ii) and (iii) can be interchanged. The present invention also relates to an aqueous gel ink with fixed color obtained according to the process of the invention, comprising citric acid and derivatives, gold nanoparticles, and iron powder. The invention finally concerns a writing instrument comprising an aqueous gel ink with fixed color according to the invention.

Abstract: The present invention concerns a process for preparing an aqueous gel ink with fixed color comprising the following steps: (i) preparing a gel-based matrix of aqueous ink; (ii) preparing an aqueous suspension of silver nanoparticles with a fixed color by mixing silver salts with: —water, —a mixture of at least an alkali metal or alkaline earth metal salt of citrate, —an oxidizing agent, preferably hydrogen peroxide H2O2, —and polyvinylpyrrolidone; (iii) adding under agitation the aqueous suspension of silver nanoparticles obtained in step (ii) to the gel-based matrix of aqueous ink obtained in step (i), to obtain an aqueous gel ink with fixed color with silver nanoparticles dispersed therein.

Abstract: The present invention concerns a process for preparing an aqueous gel ink with fixed color comprising the following steps: (i) preparing a gel-based matrix of aqueous ink; (ii) preparing an aqueous suspension of silver nanoparticles with fixed color by mixing silver salts with: water, a mixture of at least an alkali metal or alkaline earth metal salt of citrate, preferably an alkali citrate salt and an alkali metal hydride, preferably NaBH4, a further reducing agent, preferably ascorbic acid, and oxidizing agent, preferably hydrogen peroxide H2O2 (iii) adding under agitation the aqueous suspension of silver nanoparticles obtained in step (ii) to the gel-based matrix of aqueous ink obtained in step (i), to obtain an aqueous gel ink with fixed color with silver nanoparticles dispersed therein

Abstract: The present invention concerns a process for preparing in situ an aqueous gel ink with variable color comprising the following steps: (i) preparing a gel-based matrix of aqueous ink comprising an N-Acyl-aminophenol, wherein said hydroxyl group is preferably in meta or in para position on the benzenic group, and (ii) adding a solution of silver salts to the gel-based matrix of aqueous ink prepared in step (i), to obtain an aqueous gel ink with variable color with silver nanoparticles dispersed therein. The present invention also relates to an aqueous gel ink with variable color obtained according to the process of the invention, comprising an N-Acyl-aminophenol, wherein said hydroxyl group is preferably in meta or in para position on the benzenic group and silver nanoparticles. The invention finally concerns a writing instrument comprising an aqueous gel ink with variable color according to the invention.

Abstract: The present disclosure relates to a computer-implemented method for handwriting-to-text-summarization, comprising obtaining, via a user interface of a system, a handwriting input representing a handwriting of a user of the system for handwriting-to-text-summarization, recognizing a text in the handwriting input, extracting at least one dynamic feature of the handwriting from the handwriting input, generating a text summary of the text, wherein generating the text summary is based on the text and on the at least one dynamic feature of the handwriting. The present disclosure also relates to a system for handwriting-to-text-summarization, comprising a user interface comprising a capturing subsystem configured to capture a handwriting of a user of the system, and wherein the system is configured to run the method for handwriting-to-text-summarization.

Abstract: A multi-function writing instrument comprises a body extending in an axial direction, at least two writing elements arranged inside the body, each writing element comprising a writing head able to take up a retracted position in which the writing head is stowed in the body and a writing position in which the writing head protrudes from the body, one of the writing elements being a lead-holder system comprising a lead-holder mechanism and a lead container, the lead container comprising a side opening for inserting leads.

Abstract: The present specification relates to a computer-implemented method for providing at least one note taking user interface setting for a digital writing system, comprising obtaining at least one time series of data related to a progression of an education resource, recognizing the education resource based on the at least one time series of data, thereby yielding an education resource identifier specifying the education resource, selecting the at least one note taking user interface setting for the digital writing system based on the education resource identifier, and applying the at least one note taking user interface setting for the digital writing system as the education resource progresses, wherein the at least one note taking user interface setting for the digital writing system is deemed to be conducive to a learning success based on other users' having taken notes for the education resource.

Abstract: Multifunction writing instrument comprising a body extending in an axial direction and housing at least two retractable writing elements and a ring portion movable in rotation. The ring portion having at least as many pairs of guide surfaces as retractable writing elements. The writing elements include buttons. Each button is configured to cooperate with a respective one of the pair of guide surfaces of the ring portion. Actuation of the button of a writing element facilitates movement of the writing element from the retracted position to the writing position and returns any of the other writing elements in the writing position to the retracted position, whereby at most, one writing element is in the writing position.

Abstract: The application relates to a porous color linker comprising a tip portion configured to deposit indicia on a writing surface; a mixing portion configured to combine a plurality of inks; and a base portion having a first receiving portion configured to receive a tip of a first ink discharge device and a second receiving portion configured to receive a tip of a second ink discharge device.

Abstract: A computer-implemented method for digitization of papercraft folding for creation of a papercraft model may include monitoring, via an RFID reader, a sheet provided with an array of RFID tags. Based on the RFID reader output, the occurrence of a fold performed on the sheet is determined. The method further includes determining fold properties of the occurred fold and storing the fold properties as a fold dataset of the occurred fold.

Abstract: A computer-implemented method and an apparatus for generating an action-to-feature mapping of a visual artwork may include initializing a system to create a visual artwork in, and obtaining an input stream of data recording a creation of a visual artwork from the system, and identifying, based on the input stream of data, at least one time series of utensil actions capable of reproducing the visual artwork, and obtaining at least one image of the visual artwork, and generating the action-to-feature mapping based on the at least one time series of utensil actions and on the at least one image of the visual artwork, thereby recognizing at least one artistic feature of the visual artwork. The action-to-feature mapping may include at least one pair of at least one utensil action of the at least one time series of utensil actions and the at least one artistic feature.

Abstract: A computer-implemented method for measuring cognitive load of a user creating a creative work in a creative work system, may include generating at least one verbal statement capable of provoking at least one verbal response from the user, prompting the user to vocally interact with the creative work system by vocalizing the at least one generated verbal statement to the user via an audio interface of the creative work system, and obtaining the at least one verbal response from the user via the audio interface, and determining the cognitive load of the user based on the at least one verbal response obtained from the user, wherein generating the at least one verbal statement is based on at least one predicted verbal response suitable for determining the cognitive load of the user.

Abstract: A computer-implemented method and an apparatus for generating and running a creative tutorial algorithm for creating a visual artwork may include obtaining data defining a creative objective and identifying the creative objective based on the data defining the creative objective, and obtaining information about at least one targeted artistic style and identifying the at least one targeted artistic style based on the information about the at least one targeted artistic style, and accessing a plurality of predetermined artistic styles and identifying, based on the plurality of predetermined artistic styles, at least one predetermined artistic style matching the at least one targeted artistic style, thereby specifying at least one targeted predetermined artistic style, and generating the creative tutorial algorithm. The creative tutorial algorithm is configured to include instructions on how to reproduce the creative objective in terms of the at least one targeted predetermined artistic style.

Abstract: A refill for a writing felt pen, the refill comprising a deformable pouch and a nib inserted into the deformable pouch, the deformable pouch comprising a mix of dry absorbent polymer, fibers and dry ink.

Abstract: A multifunction writing instrument comprising a body extending along an axial direction and receiving at least two retractable writing elements, each retractable writing element comprising a writing tip, a reservoir and a button, each retractable writing element being movable between a writing position in which the writing tip extends from the body and a retracted position in which the writing tip is retracted within the body, each retractable writing element being connected to an electronic unit in order to detect which retractable writing element is in the writing position.

Abstract: The present invention concerns a process for preparing in situ an aqueous gel ink with variable color comprising the following steps: (i) preparing a gel-based matrix of aqueous ink comprising 0.005 to 0.1 mol·L?1 of ester(s) of retinol represented by formula (I), and (ii) adding a solution of 0.002 to 0.05 mol·L?1 silver salts (Ag+) to the gel-based matrix of aqueous ink prepared in step (i), to obtain an aqueous gel ink with variable color with silver nanoparticles dispersed therein. The present invention also relates to an aqueous gel ink with variable color obtained according to the process of the invention, comprising said ester of retinol represented by formula (I) and silver nanoparticles.