The present invention relates to a smart color writing tool or pen or stylus for an interactive board. More specifically, the invention relates to a smart writing tool which allows selection of a specific color from its surroundings for writing or 5 highlighting purposes.
The present digital world has brought front the concept of electronic classrooms, leaving behind the conventional classrooms with blackboard and chalk system, and the concept of interactive meetings, presentations and conferences. These electronic classrooms, boardrooms, and auditoriums are supported by LCDs, projection systems, or electronic boards which are connected to a computer or laptop for display of information.
Conventionally, an operator or user mostly relies on the connected computer for controlling the presentation, display of information or for changing any of the settings during the presentation. This requires movement away from the presentation and the audience which causes a break in the presentation leading to distraction. The operator is usually equipped with laser pointers for discussing the information displayed, but such pointers are limited to pointing to the projection screen and cannot control the presentations.
US5782548A discloses a remote controller which comprises of a pointer and wireless controller which can control the presentation staying away from the computer. This invention was one of the first which provided some mobility to the operator.
US6346933B1 discloses an interactive display presentation system which helps the operator in underlining, zooming in, or highlighting using a laser pointer having mouse commands.

However, the advent of the electronic interactive boards bought forward the use of interactive pointing devices, writing tools, electronic pens, or styluses, or display tools. The electronic interactive boards apart from display of information can additionally be used as electronic boards for writing. Unlike the traditional whiteboards or blackboards, these interactive whiteboards have the ability to store the information written on them by transmitting it to the connected computer which can be further edited, printed, transmitted etc. via the computer. The interactive pointing devices or writing tools are also remotely connected to the computer via Wi-Fi or Bluetooth, and can typically be used as a computer mouse to manipulate objects on the display by passing the pointer over the surface of the interactive board.
An interactive class or meeting, or a work of a designer or an artist requires use of different colors for highlighting, underlining, drawing or writing purposes. A major limitation of interactive pens is their inability to change colors without intervention of the computer taskbar. This generally, requires for the operator to click several times on the task bar for selecting the color of his/her choice. This intervention is time consuming and brings brief pauses during the presentation which is further annoying to the operator and the audience. Besides, conventional interactive projection system normally supports only one writing color in the same writing region.
US9454247B2 discloses an interactive writing device with an adaptive color identification method. The interactive writing devise includes a capturing unit coupled to a processing unit. The processing unit comprises of a search region establishing unit, a color recovery unit, a tag searching unit and a display control unit. The interactive writing device is a separate unit to be installed in the interactive display system. The operator uses writing pens coded with a color tag for writing on interactive writing boards and the interactive writing device recognizes the color of the color tag of the writing pen and then imparts the recognized color into the writing pattern. However, the major limitation of this invention is the requirement of separate writing tools with separate color tags for writing.

KR101595319 discloses an electronic pen for an interactive board with pre¬selected color buttons for switching colors and a nib at the end of the pen which can vary the thickness of writing by changing the pressure.
US20160034052A1 discloses a stylus with a color input unit for using on smart phone, touch screens and laptops; wherein, the color input unit includes a circuit board, an MCU, a color sensor, a color display device, a Bluetooth module, a memory, a control interface and a power supply device respectively connected to the MCU. This invention has the ability to capture color from natural surfaces or surrounding environment and be stored as a database. The stored colors selected from the environment are then displayed on the LED screen for selection. However, this invention is useful for majorly touch screens.
The present invention takes into account the drawbacks of the prior art and provides a smart color pen for interactive boards with a color sensor.
Accordingly the main object of the present invention is to provide a smart writing tool or a pen or stylus for interacting boards for writing or highlighting in different colors.
Yet another object of the present invention is to provide a user-friendly smart writing tool, wherein the smart writing tool allows selection of a specific color from its surroundings for writing or highlighting purposes using a simple rotating movement provided.
Yet another object of the present invention is to provide a smart writing tool with a micro-controller for automatic control of the writing tool and minimal dependence on external associated devices such as a computer, wherein the micro-controller is associated with a non-volatile memory storing unit such as a Read-Only Memory (ROM), and a volatile memory storing unit such as a Random-Access memory (RAM).

Yet another object of the invention is to provide a smart writing tool for interactive boards with at least one color scanner associated with at least one RGB color sensor to recognize the colors from the surrounding environment.
Yet another object of the invention is to provide a smart writing tool for interactive boards with a display unit for displaying the color captured by the color scanner.
Yet another object of the invention is to provide a smart writing tool for interactive boards with a color selecting and freezing system in the form of push button for saving and locking the preferred color captured from the surrounding environment.
Yet another object of the invention is to provide a smart writing tool for interactive boards with a color selector utility such as a rotator or a twister for changing colors in the display unit for selection.
Yet another object of the invention is to provide a smart writing tool for interactive boards with a facility using a rechargeable battery such as a lithium ion battery.
Yet another object of the invention is to provide a smart writing tool for interactive boards with a micro-USB facility for connecting it with a computer or laptop or other similar devices for charging of the battery or transmission of data and other purposes.
Yet another object of the invention is to provide a smart writing tool for interactive boards with detachable nib portions with different stroke weights for varying the thickness of the writing.
Yet another object of the invention is to increase the life of a single smart writing tool by providing a detachable nib, the mere breakage of which will require replacement of another nib.

Yet another object of the invention is to provide a smart writing tool for interactive boards which can provide and reproduce nearly about 16 million colors.
Yet another object of the invention is to provide a user-friendly smart writing tool for interactive boards which does not require interaction with the computer task bar for changing or selecting color for writing or highlighting.
The present invention relates to a smart color writing tool or display tool or a pen or a stylus for interactive boards. More specifically, the invention relates to a user-friendly smart pen or stylus for interactive boards which has an easy color selecting option for writing, drawing, and highlighting.
In the preferred embodiment of the present invention, a smart writing tool for interactive boards is provided, wherein a single writing tool is adaptable to execute writing in numerous colors. A user or an operator of said writing tool has an option for selecting a color from the surroundings, capturing the color, and using it for writing or highlighting. One movement operation such as twisting makes it easy to operate and extremely user-friendly. Changing colors during presentation for writing or highlighting does not require the user to move away from the presentation, or cause any distraction, or click several times on the task bar on the computer. Changing the color during presentation requires only rotating a twister or a rotating unit provided on one end of the writing tool.
In this aspect, an embodiment of the invention provides a smart writing tool comprising an elongated cylindrical housing having an anterior end and a posterior end, a color capturing module, a color processing module, a color transmitting module, and a power module; wherein,
a) the color capturing module comprises at least one color scanner, and at least one RGB color sensor, said color capturing module

resides in a rotating unit attached to the posterior end of the housing,
b) the color processing module comprises a display unit for display of a preferred color, a color freezing unit connected to said display unit for freezing the preferred color displayed in the display unit,
c) the color transmitting module comprises at least one microcontroller, at least one ROM, at least one RAM, and a removable nib attached to the anterior end of the housing,
d) the color capturing module is in communication with the color processing module through the color sensor,
e) the color processing module is in turn in communication with the color transmitting module through the RAM, and
f) the color capturing module captures preferred colors in the environment through the color scanner.
Accordingly, the smart writing tool enables a user to select colors from the surroundings and save them, wherein the ROM and RAM facilitates the storage of around 16 million colors. The rotation of the associated rotating unit allows change of color, wherein the selected color is displayed in the display unit. The preferred color is locked by using the color freezing unit which is preferably a push button.
In one aspect, the smart writing tool runs on a rechargeable battery such as a lithium battery which in turn is cost-effective. The smart writing tool is also provided with a micro-USB port for transmission of data and as a charging port for recharging the battery.
In another embodiment of the invention, the invention provides a nib which acts as a nib of a normal pen which is detachable from the main cylindrical housing of the smart color writing tool and is replaceable with another nib. This aspect provides a method for using multiple nibs for writing, wherein, different nibs provide different stroke weights while writing which provides different thickness. This also increases the life of the writing tool which otherwise would have been

short if only a single nib was attached. Breakage of the nib will not require a new writing tool but only the replacement of the nib.
A complete understanding of the system and method of the present invention may be obtained by reference to the following drawings:
Figure 1 is a schematic perspective view of a smart color writing tool.
The present invention will now be described more fully hereinafter. This invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiment set forth herein. Rather, the embodiment is provided so that this disclosure will be thorough, and will fully convey the scope of the invention to those skilled in the art.
The present invention relates to a smart color writing tool or a display tool or a pen or a stylus for writing or highlighting in different colors. It is a user-friendly writing tool which has a easy color selecting option for writing, drawing, and highlighting.
In the preferred embodiment of the invention, the invention provides a smart writing tool for interactive boards for writing in numerous colors, wherein the user of the writing tool has an option for selecting the color of choice from his/her surroundings, capturing the color, and using it for writing or highlighting. Moreover, changing a color or selection of a new color for writing or highlighting requires only one movement of the writing tool; and does not require the use of task bar or interaction with the connected computer or display screen. This makes the invention extremely user-friendly, and also minimizes distractions caused

during presentation. The smart writing is also equipped with detachable nibs, which function as a nib of a pen, for varying the thickness of syllables or symbols during writing or drawing. Thus, the invention provides a smart writing tool useful for writing or highlighting in different colors, and with different thickness.
In this aspect, an embodiment of the invention provides a smart color writing tool 100 for interactive boards comprising an elongated cylindrical housing 102 having an anterior end and a posterior end, a color capturing module, a color processing module, a color transmitting module, and a power module; wherein,
a) the color capturing module comprises at least one color scanner 108, and at least one RGB color sensor, said color capturing module resides in a rotating unit 103 attached to the posterior end of the housing,
b) the color processing module comprises a display unit 106 for display of a preferred color, a color freezing unit 107 connected to said display unit for freezing the preferred color displayed in the display unit,
c) the color transmitting module comprises at least one microcontroller, at least one ROM, at least one RAM, and at least one removable nib 101 attached to the anterior end of the housing,
d) the color capturing module is in communication with the color processing module through the color sensor,
e) the color processing module is in turn in communication with the color transmitting module through the RAM, and
f) the color capturing module captures preferred colors in the environment through the color scanner 108.
Further, the anterior end of the housing can accommodate nibs of varying sizes and thickness.
As depicted in Figure 1, the smart writing tool 100 is an elongated cylindrical tool which looks like a pen or a stylus. The color capturing module comprising of at least one color scanner 108, and at least one RGB color sensor, enables capturing

a color from the surroundings. The color capturing module is in communication with the color processing module, wherein the color processing module comprises of a display unit 106 for display of a preferred color, a color freezing unit 107, which enables display of the captured color on the display unit and freezing the color using the color freezing unit which is preferably a push button. The color processing module is in turn in communication with the color transmitting module comprising of at least one microcontroller, at least one ROM, at least one RAM, and a removable nib. The associated ROM and RAM provide a total memory capacity of at least 1 GB, which enables storage of at least 16 million colors. The anterior end of the housing can accommodate nibs of varying sizes and thickness.
The writing tool provides an easy color selection tool, wherein simple rotation of the rotating unit 103 enables change of colors which are displayed on the display unit 106. Therefore, the smart writing tool brings extreme ease to the user and minimizes any kind of distraction during presentation.
The power module comprises of a rechargeable battery, a housing for said rechargeable battery and a port for charging said rechargeable battery, wherein the said port for charging comprises of a micro-USB port 105. Alternatively, the said micro-USB port 105 enables transmission of data.
In another embodiment of the invention, the invention provides a detachable nib 101, which acts a nib of a pen, wherein at least six different nibs with varying stroke weights are provided. Hence, varying the thickness while writing on the interactive board requires mere change of the nib. Another problem often associated with electronic pens or styluses is that mere breakage of the nib requires complete replacement of the pen or stylus, which is less economical. However, the detachable nib of the present invention makes the invention significantly economical, and increases the life of the smart writing tool.

1. A smart color writing tool 100 for interactive boards comprising an elongated cylindrical housing 102 having an anterior end and a posterior end, encompassing a color capturing module, a color processing module, a color transmitting module, and a power module; wherein:
a) the color capturing module comprises at least one color scanner 108, and at least one RGB color sensor, said color capturing module resides in a rotating unit 103 attached to the posterior end of the housing;
b) the color processing module comprises a display unit 106 for display of a preferred color, a color freezing unit 107 connected to said display unit for freezing the preferred color displayed in the display unit;
c) the color transmitting module comprises at least one microcontroller, at least one ROM, at least one RAM, and a nib 101 attached to the anterior end of the housing;
d) the color capturing module is in communication with the color processing module through the color sensor;
e) the color processing module is in turn in communication with the color transmitting module through the RAM; and
f) the color capturing module captures preferred colors in the environment through the color scanner 108.
2. The writing tool as claimed in claim 1 wherein the ROM facilitates storage of 16 million colors.

3. The writing tool as claimed in claim1, wherein the microcontroller provides automatic operation to the writing tool with minimal dependence on externally connected devices.
4. The writing tool as claimed in claim 1, wherein the power module comprises a rechargeable battery, a housing for said rechargeable battery and a port for charging said rechargeable battery.
5. The writing tool as claimed in claim 4, wherein the port for charging said rechargeable battery comprises a micro-USB port 105.
6. The writing tool as claimed in claim 5, wherein the micro-USB port alternately provides for transmission of data.
7. The writing tool as claimed in claim 1, wherein the anterior end of the housing can accommodate nibs of varying sizes and thickness.
8. The writing tool as claimed in claim 1, wherein the housing further comprises a grip 104 positioned around the housing towards the anterior end.