Claims:We claim:
1. An electronic device for erasing contents on a writing board, the electronic device comprising:
a motion detecting unit configured to:
detect movement of the electronic device from a resting position;
transmit an activation signal to activate a processing unit and a proximity sensor upon detecting the movement of the electronic device;
the proximity sensor configured to identify proximity of the electronic device with the writing board;
a user interface configured to display one or more colours to enable selection of the one or more colours by a user;
the processing unit configured to:
receive a signal from the proximity sensor when the electronic device is proximal to the writing board;
receive, from the user, selection of the one or more colours for identifying at least one of erasable or retainable contents on the writing board through the user interface; and
transmit a control signal to a motion control system, wherein the motion control system upon receipt of the control signal, controls moveable cleaning surface of the electronic device to perform at least one of pushing the moveable cleaning surface forward and pulling the moveable cleaning surface backward.

2. The electronic device as claimed in claim 1, wherein the one or more colours displayed on the user interface are based on preconfigured colours in the electronic device.

3. The electronic device as claimed in claim 1, wherein the one or more colours displayed on the user interface are based on one or more colours of the content on the writing board captured in real-time by one or more cameras configured in the electronic device.

4. The electronic device as claimed in claim 1 further comprises a storage unit configured to store the one or more colours.
5. The electronic device as claimed in claim 1, wherein the user interface comprises of one or more selection icons, wherein each of the one or more selection icons are associated to at least one operation related to managing of colours and content on the writing board.

6. The electronic device as claimed in claim 1, wherein the motion control system provides an indication to pull the moveable cleaning surface backward when the selected one or more colours is for retaining the contents on the writing board.

7. The electronic device as claimed in claim 1, wherein the motion control system provides an indication to push the moveable cleaning surface forward when the selected one or more colours is for erasing the contents on the writing board.

8. The electronic device as claimed in claim 1 further comprises a vibration motor configured to provide a feedback in a form of vibration to the user upon detecting the electronic device proximal to the retainable content on the writing board.

9. A method for erasing contents on a writing board using an electronic device, the method comprising:
detecting, by a motion detecting unit configured in the electronic device, movement of the electronic device from a resting position;
transmitting, by the motion detecting unit, an activation signal to activate a processing unit and a proximity sensor upon detecting the movement of the electronic device;
identifying, by the proximity sensor, proximity of the electronic device with the writing board;
displaying, by a user interface, one or more colours to enable selection of the one or more colours by a user;
receiving, by the processing unit, a signal from the proximity sensor when the electronic device is proximal to the writing board;
receiving, by the processing unit, selection of the one or more colours for identifying at least one of erasable and retainable contents on the writing board through the user interface; and
transmitting, by the processing unit, a control signal to a motion control system wherein the motion control system upon receipt of the control signal, controls moveable cleaning surface of the electronic device to perform at least one of pushing the moveable cleaning surface forward and pulling the moveable cleaning surface backward.

10. The method as claimed in claim 9, wherein the one or more colours displayed on the user interface are based on preconfigured colours in the electronic device.

11. The method as claimed in claim 9, wherein the one or more colours displayed on the user interface are based on one or more colours of the content on the writing board captured in real-time by one or more cameras configured in the electronic device.

12. The method as claimed in claim 9, wherein the one or more colours are stored in a storage unit configured in the electronic device.

13. The method as claimed in claim 9, wherein the user interface comprises one or more selection icons, wherein each of the one or more selection icons are associated to at least one operation related to managing of colours and content on the writing board.

14. The method as claimed in claim 9, wherein the indication to pull the moveable cleaning surface backward is provided by the motion control system when the selected one or more colours is for retaining the contents on the writing board.

15. The method as claimed in claim 9, wherein the indication to push the moveable cleaning surface forward is provided by the motion control system when the selected one or more colours is for erasing the contents on the writing board.

16. The method as claimed in claim 9 further comprises providing a feedback in the form of a vibration to the user by a vibration motor configured in the electronic device upon detecting the electronic device proximal to the retainable content on the writing board.

17. A non-transitory storage readable medium including instructions stored thereon that when processed by at least one processor cause an electronic device to perform operations comprising:
receiving an activation signal from a motion detecting unit when the movement of the electronic device from the resting position is detected by the motion detecting unit;
receiving a signal from a proximity sensor when the electronic device is proximal to the writing board;
receiving selection of one or more colours displayed on a user interface of the electronic device for identifying at least one of erasable and retainable contents on the writing board; and
transmitting a control signal to a motion control system wherein the motion control system upon receipt of the control signal, controls moveable cleaning surface of the electronic device to perform at least one of pushing the moveable cleaning surface forward and pulling the moveable cleaning surface backward.

Dated this 31st day of July 2015

SWETHA S.N
OF K & S PARTNERS
AGENT FOR THE APPLICANT
, Description:TECHNICAL FIELD
The present subject matter is related, in general to erasing device, and more particularly, but not exclusively to an electronic device and a method for erasing contents on a writing board.