TECHNICAL FIELD
[0001] The present disclosure relates generally writing implements, and more particularly relates to a writing device for detecting spelling error and grammatical error while writing, and enables a user to correct the spelling and sentence accordingly.

BACKGROUND
[0002] Pens are a common writing instrument for placing text on surfaces such as paper. Other versions of pens are also available. Digital pens are known in the art, these pens look, feel, and operate similar to a normal pen, but include electronics that provide additional functionality such as capturing the content, user is writing, and digitizes them so that they may be downloaded to a computer and displayed on its monitor. The data can then be interpreted by handwriting software (OCR) and used in different applications or just as graphics.
[0003] Currently, there are fewer solutions available to recognize the characters and words or even sentences while writing in a physical way. It's hard to recall and retain the spellings of the words and also to write up in proper grammar which increases high chances of grammatical mistakes and language recognition too.
[0004] When a user write on a surface using a pen, it is not easy to erase the incorrect characters, blade is used to erase that which usually tears the paper, or whitener is used which hide the written characters but highlights the word written again on that place.
[0005] Also, pens generally secured in a pocket of shirt, trouser, bags, and sometimes we forget to close the pen, and the writing tip is protracted, the writing tip thus contacts and stains on the pocket.
[0006] There is, therefore, a need in the art to provide a writing device to mitigate the above- mentioned problems, by detecting detect words and sentences and assists the user to write correct words and sentences, also automatically retract writing tip, when the writing device is not in use.
OBJECTS OF THE INVENTION
[0007] A general object of the present disclosure is to provide a writing device to assist a user to write correct words and sentences.
[0008] It is an object of the present disclosure to provide a writing device to detect incorrect word and sentences written by the user.
[0009] It is an object of the present disclosure to provide a writing device to recommend the user correct word and sentences.
[0010] It is an object of the present disclosure to provide a writing device to erase characters written by pen ink.
[0011] It is an object of the present disclosure to provide a writing device having automatic retraction of the writing tip when the writing device not in use.

SUMMARY
[0012] The present disclosure relates generally writing implements, and more particularly relates to a writing device for detecting spelling error and grammatical error while writing, and enables a user to correct the spelling and sentence accordingly.
[0013] According to an aspect, the present disclosure provides a writing device including a body 102 having a lower part and an upper part, an image capturing unit coupled to the lower part to capture images of a writing surface, a processing unit operatively coupled to the image capturing unit.
[0014] In an aspect, the processing unit may include a processor configured to execute a set of instructions, stored in a memory, which, on execution, causes the writing device to receive the captured images from the image capturing unit, extract words and sentences from the received images, compare the extracted words and sentences with a set of pre-stored words and sentences, generate and transmit a first set of alert signals to a display unit and a second set of alert signals to an alert unit, upon identifying misspelled word and grammatical mistakes in a sentence, where the first set of alert signals pertain to visual alert and the second set of alert signals pertain to audio alert.
[0015] In an aspect, a correcting instrument may be coupled to the upper part and enable a user to erase the words and sentences written on the writing surface.
[0016] In an aspect, the processor may be further configured to extract the writing surface from the images, compare the extracted writing surface with a set of pre-defined writing surfaces, and upon finding the writing surface besides the pre-stored writing surfaces, a writing tip is retracted in the body 102.
[0017] In an aspect, a push button may be detachably coupled with the upper part that facilitates in protruding and retracting the writing tip.
[0018] In an aspect, a correcting instrument may be positioned at top surface of the push button.
[0019] In an aspect, a cap may be provided to cover the correcting instrument.
[0020] In an aspect, an electric motor may be configured inside the body, and the electric motor may be operatively coupled with the push button that facilitates in moving the push button from a first position to a second position.
[0021] In an aspect, the display unit may be selected from a group consisting of light emitting diode (LED), liquid crystal display (LCD), organic light emitting diode (OLED), and LED matrix, and the display unit may be configured to display the visual text pertaining the correct spelling of the misspelled word and grammatically correct sentence.
[0022] In an aspect, the alert unit may be selected from a group consisting of alarm, buzzer, and speaker, and the alert unit may be configured to produce the audible notifications pertaining the correct spelling of the misspelled word and grammatically correct sentence.
[0023] In an aspect, the correcting instrument may include any or a combination of correction fluid, correction tape, ink eradicator, eraser, and correction stick.
[0024] In an aspect, the writing tip may be coupled at an end of a cartridge, and the cartridge containing writing fluid, which enables the user to write on the writing surface, and the cartridge may be accommodated in the body.
[0025] In an aspect, the writing device may include a power source operatively coupled to the processing unit, the electric motor, the display unit, the alert unit, and the image capturing unit.
[0026] In an aspect, the power source may facilitate in providing electric power to the writing device, and the power source may include any or a combination of cell, battery, electric power line, inverter, capacitor bank, and inductor.
[0027] The above and other mentioned objects and advantages of the present invention are described hereunder in greater details with reference to following accompanying non-limiting illustrative drawings.

BRIEF DESCRIPTION OF THE DRAWINGS
[0028] It should be noted that the figures are not drawn to scale and that elements of similar structures and functions are generally represented by reference numerals for illustrative purposes throughout the figures. It also should be noted that the figures are only intended to facilitate the description of the preferred embodiments. The figure does not illustrate every aspect of the described embodiments and does not limit the scope of the present disclosure.
[0029] FIG. 1 illustrates an exemplary view of a writing device, in accordance with an embodiment of the present disclosure.
[0030] FIG. 2 illustrates a block diagram of functional components of a writing device, in accordance with an embodiment of the present disclosure.
[0031] FIG. 3 illustrates exemplary functional components of a processing unit of a writing device, in accordance with an embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE INVENTION
[0032] In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the present invention. It will be apparent to one skilled in the art that embodiments of the present invention may be practiced without some of these specific details.
[0033] The proposed writing device capable of detecting error in words and sentences, and accordingly by visual representation and audible notification user can be alerted to correct the misspelled word and grammatical errors detected in the sentence. Additionally, the writing device can include a correcting instrument at one end of the writing service, that can facilitate in erasing words and sentences, thus the user can be enabled to write the words and sentences again. The writing device can include a display unit to display correct words, also by an audible unit, the correct words and sentences can be pronounced, that aids in getting correct pronunciation of the words.
[0034] Referring to the drawings, FIG. 1 shows an exemplary writing device 100 in accordance with the disclosure. The writing device 100 can include a body 102 composed of metal, glass, plastic, or any other suitable material. At one end of the body 102, a lower part 102-1 can be coupled, and at another end an upper part 102-2 can be coupled, the lower part 102-1 and the upper part 102-2 can be removable coupled with the body 102. A cartridge 104 can be accommodated in the body 102, the cartridge 104 can have a writing tip 106 configured at an end of the cartridge 104. The writing tip 106 can be a fountain tip, ball-point tip, felt tip, or any other applicator designed to apply the writing fluid to a surface.
[0035] In an embodiment, the cartridge 104 can be refillable with an ink of any color such as red, green, blue, or black. In another embodiment, the cartridge 104 can be replaced with a new cartridge 104, when writing fluid or ink in the cartridge 104 is ended.
[0036] In an embodiment, the body 102 can include a clip 118 for detachably securing the writing device 100 to a piece of clothing such as pocket of a shirt or trouser, and to a bag or purse.
[0037] In an embodiment, the upper part 102-2 can include a push button 110, the push button 110 can be coupled with securing means such as spring and bar having at least one protrude, that facilitates in protruding and retracting the writing tip 106 of the writing device 100.
[0038] In an embodiment, a correcting instrument 112 can be positioned at top surface of the push button 110, the correcting instrument 112 can be configured to erase content written on any written surface. The correcting instrument 112 can include any or a combination of correction fluid, correction tape, ink eradicator, eraser, and correction stick that can facilitate in removing ink from the writing surface, and the ink can be of ball pen, gel pen, and fountain pen.
[0039] In an embodiment, a cavity is provided on the push button 110, where the correcting instrument 112 can be positioned in a way that small portion of the correcting instrument 112 can be detachably fixed in the push button 110. Also a cap 114 can be provided to cover the correcting instrument 112, and the cap 114 can be detachably coupled with the push button, and when the cap 114 is couple with the push button 110, the cap 114 can be pressed by the user manually to move the tip writing 106 outside the body 102.
[0040] In an embodiment, an image capturing unit 108 can be coupled with the writing device 100, the image capturing unit 108 can be attached at the lower part 102-1. The image capturing unit 108 can be configured to capture images of the writing surface.
[0041] Referring to FIG.2, the writing device 100 can include an image capturing unit 108, a processing unit 202, a display unit 204, an alert unit 206, and an electric motor 208. The image capturing unit 108 can be configured to capture images of the writing surface, the writing surface can be a paper, a notebook, a book, hand, boards, sheets, and the likes, and the captured images can be transmitted the processing unit 202 in form of a first set of signals.
[0042] In an exemplary embodiment, when the writing device 100 is used by the user, i.e. when the writing tip 106 is outside the body 102, the image capturing unit 108 can be actuated to capture images of the writing surface.
[0043] In an embodiment, the processing unit 202 can be operatively coupled with the image capturing unit 108, the display unit 204, the alert unit 206, and the electric motor 208. The processing unit 202 can be configured to received images captured from the image capturing unit 108, extract content from the images, analyses the content to detect error in the content. Upon detection of misspelled word, and grammatically incorrect sentences the processing unit 202 can transmit visual notification to the display unit 204, and audio notification can be transmitted to the alert unit 206.
[0044] In an embodiment, the display unit 204 can be selected from light emitting diode (LED), liquid crystal display (LCD), organic light emitting diode (OLED), LED matrix, but not limited to likes. The display unit 204 can be configured to display the visual text pertaining the correct spelling of the misspelled word and grammatically correct sentence.
[0045] In an embodiment, the alert unit 206 can be selected from alarm, buzzer, and speaker, but not limited to likes. The alert unit 206 can be configured to produce the audible notifications pertaining the correct spelling of the misspelled word and grammatically correct sentence.
[0046] In an embodiment, electric motor 208 can be operatively coupled with the push button 110, and can be positioned inside the body 102. Upon detection of a writing surface besides the writing surface stored in a database, the processing unit 202 actuates the electric motor 208 that facilitates in moving the push button 110 from a first position to a second position, consequently the writing tip 106 can be retracted inside the body 102.
[0047] In an exemplary embodiment, when the writing device 100 is not in use, the processing unit 202 can extract surface other than the writing surface from the received images, and the writing tip 106 can be automatically retracted in the body 102.
[0048] In an embodiment, the writing device 100 can include a power source (not shown) operatively coupled to the image capturing unit 108, the processing unit 202, the electric motor 208, the display unit 204, and the alert unit 206. The power source can facilitate in providing electric power to the writing device 100, and the power source can include any or a combination of cell, battery, electric power line, inverter, capacitor bank, inductor, and the likes.
[0049] Referring to FIG. 3, a processing unit 202 can include one or more processor(s) 302. The one or more processor(s) 302 can be implemented as one or more microprocessors, microcomputers, microcontrollers, digital signal processors, central processing units, logic circuitries, and/or any devices that manipulate data based on operational instructions. Among other capabilities, the one or more processor(s) 302 can be configured to fetch and execute computer readable instructions stored in a memory 304 of the processing unit 202. The memory 304 can store one or more computer-readable instructions or routines, which may be fetched and executed to create or share the data units over a network service. The memory 304 can include any non-transitory storage device including, for example, volatile memory such as RAM, or non-volatile memory such as EPROM, flash memory, and the likes.
[0050] In an embodiment, the processing unit 202 can also include an interface(s) 306. The interface(s) 306 may comprise a variety of interfaces, for example, interfaces for data input and output devices, referred to as I/O devices, storage devices, and the like. The interface(s) 306 may facilitate communication of writing device 100. The interface(s) 306 may also provide a communication pathway for one or more components of the writing device 100. Examples of such components include, but are not limited to, processing engine(s) 308 and database 320.
[0051] In an embodiment, the processing engine(s) 308 can be implemented as a combination of hardware and programming (for example, programmable instructions) to implement one or more functionalities of the processing engine(s) 308. In examples described herein, such combinations of hardware and programming may be implemented in several different ways. For example, the programming for the processing engine(s) 308 may be processor executable instructions stored on a non-transitory machine-readable storage medium and the hardware for the processing engine(s) 308 may include a processing resource (for example, one or more processors), to execute such instructions. In the present examples, the machine-readable storage medium may store instructions that, when executed by the processing resource, implement the processing engine(s) 308. In such examples, the processing unit 202 can include the machine-readable storage medium storing the instructions and the processing resource to execute the instructions, or the machine-readable storage medium may be separate but accessible to processing unit 202 and the processing resource. In other examples, the processing engine(s) 308 may be implemented by electronic circuitry. A database 320 can include data that is either stored or generated as a result of functionalities implemented by any of the components of the processing engine(s) 308.
[0052] In an embodiment, the processing engine(s) 308 can include an extraction unit 310, a comparison unit 312, a classification and training unit 314, a signal generation unit 316, and other unit(s) 318. The other unit(s) 318 can implement functionalities that supplement applications or functions performed by the writing device 100 or the processing engine(s) 308.
[0053] In an embodiment, the database 320 can include data that is either stored or generated as a result of functionalities implemented by any of the components of the processing engine(s) 308.
[0054] It would be appreciated that units being described are only exemplary units and any other unit or sub-unit may be included as part of the writing device 100. These units too may be merged or divided into super- units or sub-units as may be configured.
[0055] In an embodiment, the processing unit 202 can be configured to receive the first set of signals generated by an image capturing unit 108 in an electric form, where the first set of signals pertain images of writing surface, and the processing unit 202 further transmits the first set of signals to the extraction unit 310. The extraction unit 310 can be configured to extract a second set of signals from the first set of signals, where the second set of signals pertain content written on the writing surface, where the content can include words, sentences, characters, punctuation mark, and the likes, and the extracted words and sentences can be transmitted to the comparison unit 312.
[0056] In an embodiment, the comparison unit 312 can be configured to compare the extracted words and sentences with a set of pre-stored words and sentences, and upon detecting at least one of the misspelled word and grammatical error in a sentence, the signal generation unit 316 can transmit a first set of warning signals and a second set of warning signals, where the first set of warning signals can be transmitted to the display unit 204, and the second set of warning signals can be transmitted to the alert unit 206.
[0057] In an embodiment, the processor 302 can recognize the content using language processing techniques and extract characters, symbols, punctuation marks, and mathematical symbols into words, phrases, sentences, paragraphs, and other grammatical characters. For example, the processor 302 can recognize a sequence of letters as an English word, such as “flower”.
[0058] In an embodiment, the display unit 204 can be configured to display visual text pertaining correcting spelling of the word, also the correct sentences can be displayed.
[0059] In an embodiment, the alert unit 206 can be configured to produce sound to alert the user to correct misspelled word, also alerts the user to correct grammatical mistakes in a sentence.
[0060] In an exemplary embodiment, when the user write a word “flowr”, the processor 302 can detect error in spelling. The processor 302 can identify misspellings by searching a dictionary of the relevant language for an identified word and determining whether the identified word is present in the dictionary. However, in some cases, when the word is found in the dictionary, even though it is a misspelling in context. Thus, in some embodiments, the writing device 100 can also apply more rules to surrounding words, phrases, or sentences to determine whether any of the rules is violated, and accordingly visual alert and audio alert can be transmitted to the display unit 204 and the alert unit 206 respectively. The display unit 204 can display correct spelling “flower”, also the alert unit can produce sound each character of “flower” to alert the user audibly.
[0061] In an exemplary embodiment, when the user write a sentence, which is grammatically incorrect, the processing unit 202 can detect error in the sentence, and display correct sentence on the display unit 204, also produce sound for correct sentence using alert unit 206.
[0062] In an embodiment, the classification and training unit 314 can be configured to receive the words, sentences, and characters written on the writing surface, from the extraction unit (212) in machine readable form or binary form and update and train the classification and training unit 314 accordingly. In another embodiment, the classification and training unit 314 can be trained and updated based on the received content. A deep leaning model can be trained based on the received content, where the deep leaning model can be stored in the database 320. In yet another embodiment, once the dataset is trained correctly, a deep learning algorithm can be configured to perform repetitive, and routine tasks within a shorter period of time.
[0063] In an embodiment, the classification and training unit 314 can be configured to store the words, grammar rules, and daily use sentences. Also, the classification and training unit 314 can be configured to store a set of training datasets to train a machine learning model for determining error in words and sentences. The plurality of training datasets can include dictionary, grammar rules, and punctuations.
[0064] In an exemplary embodiment, the processing engine 308 can be further configured in the form of an Artificial Neural Network like the following, but not limited to Convolutional Neural Network (CNN) and Deep Neural Network (DNN). In an exemplary embodiment, the processing engine 308 can include deep learning based classifiers, where the deep learning based classifiers can include KNN classifiers, MLP neural networks and the likes.
[0065] In an embodiment, the processing unit 202 can be further configured to extract type of surface from the received images, when the surface such as paper, notebook, and the likes are detected, and the processing unit 202 can actuate the electric motor 208. Upon actuation of the electric motor 208, the push button 110 can be moved from a first position to a second position, and the writing tip 106 can be retracted in the body 102.
[0066] In an exemplary embodiment, at the time of using the writing device 100 on a paper misspelled word and grammatical mistakes can be detected, and the writing device 100 can display correct spelling and sentences on the display unit 204, also produce sound by the alert unit (206). The user can remove cap 114 from the correcting instrument 112 and incorrect words and sentenced can be erased using the correcting instrument 112, and the user can wrote correct spelling and sentences on the paper again. Also, when the writing device 100 is not in use, the writing tip 106 can be retracted inside automatically to prevent stain or damage upon fall.
[0067] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined within formation and knowledge available to the person having ordinary skill in the art.

ADVANTAGES OF THE INVENTION
[0068] The present disclosure provides a writing device to assist a user to write correct words and sentences.
[0069] The present disclosure provides a writing device to detect incorrect word and sentences written by the user.
[0070] The present disclosure provides a writing device to recommend the user correct word and sentences.
[0071] The present disclosure provides a writing device to erase characters written by pen ink.
[0072] The present disclosure provides a writing device having automatic retraction of the writing tip when the writing device not in use.

We Claims:

1. A writing device 100 comprising:
a body 102 having a lower part and an upper part;
an image capturing unit 108 coupled to the lower part to capture images of a writing surface;
a processing unit 202 operatively coupled to the image capturing unit, wherein the processing unit 202 comprises a processor configured to execute a set of instructions, stored in a memory, which, on execution, causes the writing device 100 to:
receive the captured images from the image capturing unit;
extract words and sentences from the received images;
compare the extracted words and sentences with a set of pre-stored words and sentences;
generate and transmit a first set of alert signals to a display unit 204 and a second set of alert signals to an alert unit, upon identifying misspelled word and grammatical mistakes in a sentence, wherein the first set of alert signals pertain to visual alert and the second set of alert signals pertain to audio alert;
a correcting instrument 112 coupled to the upper part and enable a user to erase the words and sentences written on the writing surface; and,
the processor is further configured to extract the writing surface from the images, compare the extracted writing surface with a set of pre-defined writing surfaces, and upon finding the writing surface besides the pre-stored writing surfaces, a writing tip is retracted in the body 102.

2. The writing device 100 as claimed in claim 1, wherein a push button 110 is detachably coupled with the upper part that facilitates in protruding and retracting the writing tip.

3. The writing device 100 as claimed in claim 1, wherein the correcting instrument 112 is positioned at top surface of the push button 110.

4. The writing device 100 as claimed in claim 1, wherein a cap 114 is provided to cover the correcting instrument.

5. The writing device 100 as claimed in claim 1, wherein an electric motor 208 is configured inside the body 102, and the electric motor 208 is operatively coupled with the push button 110 that facilitates in moving the push button 110 from a first position to a second position.

6. The writing device 100 as claimed in claim1, wherein the display unit 204 is selected from a group consisting of light emitting diode (LED), liquid crystal display (LCD), organic light emitting diode (OLED), and LED matrix, wherein the display unit 204 is configured to display the visual text pertaining the correct spelling of the misspelled word and grammatically correct sentence.

7. The writing device 100 as claimed in claim1, wherein the alert unit is selected from a group consisting of alarm, buzzer, and speaker, wherein the alert unit is configured to produce the audible notifications pertaining the correct spelling of the misspelled word and grammatically correct sentence.

8. The writing device 100 as claimed in claim 1, wherein the correcting instrument 112 comprises any or a combination of correction fluid, correction tape, ink eradicator, eraser, and correction stick.

9. The writing device 100 as claimed in claim 1, wherein the writing tip 106 is coupled at an end of a cartridge 104, wherein the cartridge 104 containing writing fluid, which enables the user to write on the writing surface, and the cartridge 104 is accommodated in the body 102.
10. The writing device 100 as claimed in claim 1, wherein the writing device 100 comprises a power source operatively coupled to the processing unit 202, the electric motor, the display unit, the alert unit, and the image capturing unit, wherein the power source facilitates in providing electric power to the writing device 100, and wherein the power source includes any or a combination of cell, battery, electric power line, inverter, capacitor bank, and inductor.