DESC:FIELD OF INVENTION
The invention relates to a system for interactive learning. The present invention further relates to a system for recording of webinar and replay. Additionally the invention relates to a method of recording and replay of the webinar by the system. Specifically the invention relates to web-based seminars and, more particularly, to systems and methods for providing webinars.

BACKGROUND OF INVENTION
Live webinars are an important aspect of live online training today. Webinar platforms typically involve a digital whiteboard which can ingest any form of digital content, a camera feed of the instructor, an optional screen share feed, an optional camera feed of one or more trainees and a chat feed. When these webinars are recorded, they are typically recorded as a video file with all the 3 feeds (whiteboard, camera, chat). These videos are bulky and run into several gigabytes for an hour of webinar recording, making it infeasible for streaming over low bandwidth conditions. The present invention provides a novel way to stream these recordings, that not only makes these recordings light-weight but also make them interactive, enabling the participant to interact with the webinar as if it were live streamed.

US20190260964A1 discloses a video conferencing may include a virtual whiteboard for displaying annotations and streaming of a physical whiteboard, indexing of physical whiteboard content, and compositing and projection of remote whiteboard content onto a local whiteboard. This patent is with a physical whiteboard while the proposed invention is for a digital whiteboard and completely digital / webinar experience.

US20180239504A1 A representative method implemented in a webinar generation device for providing a webinar, includes: receiving a plurality of media content elements; receiving a first user input designating the plurality of media content elements in a predetermined order; receiving a second user input initiating broadcasting of the plurality of media content elements as a webinar based on the predetermined order; receiving a third user input, during the broadcasting of the webinar, selecting a second of the plurality of media content elements; and modifying the broadcasting of the webinar, in response to a fourth user input, such that the second of the plurality of media content elements is broadcast based on the fourth user input during the broadcasting of the webinar. This patent is for selecting multiple media elements like camera, screen share, etc., while the proposed invention is for delivering training-based webinars. Further, the referenced patent does not talk about how data compression is achieved.

US2011161834A1 relates to a system and method for restoring and recreating a live, on-line session are disclosed. The method instantiates a virtual room on a server for an on-line session, in which one or more participating client computers may connect to the server and enter the virtual room to participate in the on-line session, retrieves a recording of an original on-line session, in which the recording includes a recorded state and a recorded timeline of events of the original on-line session, and restores the recorded state of the original on-line session, in which the restoring sets a state of the virtual room to the recorded state of the original on-line session. This patent is with restoring the recording of an online session with elements such as survey, poll, media file, etc., however, the element of a whiteboard is not discussed, which is an important aspect of the proposed invention.

US9575712B2: discloses an interactive whiteboard that enable users to interact with the whiteboard employing individual client devices connected with the whiteboard over a wireless or wired network. The whiteboard may distinguish each input method and the source of the input. The whiteboard may share the content of the whiteboard's user interface with the user's individual client device, and the user may interact with the whiteboard content on a user interface of the client device. The whiteboard may detect the input on the client device, and may update the content of the whiteboard interface with the input provided at each of the client devices such that the whiteboard may continuously reflect content updates and changes input on the interactive whiteboard and on connected client devices. This patent pertains to a collaborative whiteboard experience. While the proposed invention also has a collaborative whiteboard, this patent does not cover how the whiteboard experience in a webinar is played back.

US7653705B2: The present interactive recording and playback technique provides the ability to archive the content, the discussions and the metadata of a meeting or similar event; then aggregate, search and annotate across this data; and finally edit, combine, or split various recordings to create new presentations. This interactive recording and playback technique provides rich productivity and innovation that is unavailable today. This patent refers to the invention of a universal format to capture different content formats like videos, power points, images, into a video-like format. The proposed invention is specifically for the training and online facilitation use-case where whiteboard and chat play a significant role. Also, the aspect of timer and timed playback is not covered in this patent.

US7260257B2 discloses a patent relating to recording of a physical, non-electronic whiteboard while the proposed invention is for an electronic whiteboard. Secondly, this patent processes the whiteboard as a stream of images with detailed processing techniques for extracting the foreground of the whiteboard with the background, none of which are relevant in the proposed invention since the whiteboard is electronic. Whereas the proposed invention is far more continuous and captures the whiteboard as a series of points with time and spatial distribution, and not as a series of images.
JP2004260823A: system and method for streaming whiteboard content to a computing device in a networked environment is provided. The present invention is an extension of the whiteboard image generation technique to provide network-based collaboration of the intended conference. In one aspect, each networked client 218 can receive audio content and whiteboard content (video images). In another aspect, each networked client 218 can transmit audio content and annotation content that is displayed separately or generated on a whiteboard image. Streaming content is built on an external collaboration framework. This invention is related to image-based processing of whiteboard data while the proposed invention does not deal with images and instead treats the whiteboard as a sequence of serialized points.

CN1119763C This invention pertains to making text, graphic and audio annotations on video and does not pertain to how webinar training sessions are efficiently displayed. Further, this is specific to collaboration on video while the proposed invention is broader and comprises annotations on other aspects of a training experience including whiteboard, other collaborative activities and chat.

An embodiment of the present invention discloses a system for interactive learning, through electronic presentation, for e.g. a webinar, or webinar videos, webinar recordings, eLearning videos, video compression.

SUMMARY OF THE INVENTION
Thus, according to the present invention, it is primary object of the present invention to provide a system for interactive learning.

It is another aspect of the present invention to provide a system for interactive learning implementing live webinars.

It is a primary aspect of the present invention to provide a system for interactive learning through electronic presentation, comprising of:
a digital interface for presenter;
a digital interface of the user;
a server comprising a database/ data storage and one or more processor; and
a replay system; and
a background timer,
wherein the digital interface of the presenter and the user comprises of a camera, a chat layer, a whiteboard layer, an activity manager layer and a background timer controlled by the processor on server, the processor processes real time data and stores in the database, the white board layer is configured for real time multi-user collaboration at the interface through the server, provides individual personalized annotations activated or enabled by both the presenter and the user, the activity manager layer is configured to switch between different modes of live presentations or audio visual presentation media,
wherein the replay system is configured to reconstruct and replay the presentation in a user customized manner and is configured to display based on the user device, and
wherein the background timer maintains a time stamp for all the events in the presentation.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the processors comprise of a media processor and real-time communication processor, said the media processor processes the camera feed and transmits to the user devices through the server.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the real-time communication processor is enabled to periodically analyze the camera feed, choose the frame and downgrade or pixelate the area of the feed outside the frame, and communicate it by the media processor to the user interface.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the real-time communication processor is enabled to extract the audio feed, convert it into text and store in the data base of the server.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the different modes of live presentation is selected from one or more of games, group activities, poll activity, activities to be done individually or in groups.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the communication processor is configured to send messages/ live feed/ in broadcast mode to all users or selected message to an individual user interface, relays or communicates the real-time information and instructions to the user device.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the white board (130) is configured to be enabled by the presenter and user.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the camera is configured to contain a plurality of audio-visual media presentations, from the camera of the presenter device and from the user side device.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the activity manager enables the collaborative white board mode, wherein each annotation on the white board of each user is shared real-time with multiple users and displayed on the individual interfaces.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the camera is configured to store the time stamp data of the start and end time of the real time audio-visual media presentations.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the system is configured for the presenter to add one or more user subscribed to the webinar enabled by communication of the camera feed over server to one or more user end devices.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the chat layer is configured to update the real-time user details on receiving a message and is personalized for individual user.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the user details comprise of subset of users receiving the message and the user data.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the chat layer is configured to identify and display the user groups to or from whom a message is communicated.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the chat layer of the presenter interface is configured to store the details of chat, communicate it to the server and store it in the database of the server.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the server is a Cloud Server.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the data base in the server is configured to store the chat data with time stamp from two or more users, and white board data with time stamp of both the user and the presenter.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the white board is configured to capture the annotation data comprising time stamp, shape, colour and other data and share with the multiple users, and any data shared by one or more users is communicated real time to the white board of the user interfaces via the server.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the white board is configured to compress relevant selected data in to beizer curves for smoother rendering.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the activity manager is configured for one or more modes comprising facilitation mode, collaborative mode and the like.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein in facilitation mode, the real-time communication processor sends incremental updates of the user working area to the presenter.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the events comprise of time stamp for presentation, chat, whiteboard annotation, change to the working area and activity switch by the presenter.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the whiteboard of the user is enabled for personalized annotations by the user with time stamping which are stored on the server.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the camera layer on the replay system displays one or more active camera feeds using the traditional video / MP4 video format.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the camera layer dynamically adds more streams depending on the time-series of when such streams were added by the instructor during the live webinar/ audio-visual media presentation.

It is another aspect of the present invention to provide a system for interactive learning through electronic presentation, wherein the replay system is configured to be controlled by the background timer, camera layer is played back in MP4 format, the white board layer, the chat layer renders the white board based on starting and ending time of the presentation, and
wherein the white board layer is streamed independently, and whiteboard and chat layer update at a frequency of less than 1 frame per second.

It is another aspect of present invention to provide a method for interactive learning through electronic presentation, wherein the replay of the electronic presentation is controlled by timer system.

It is another aspect of present invention to provide a method for interactive learning through electronic presentation, wherein the replay of the whiteboard layer is independent of the chat and the camera layer.

BRIEF DESCRIPTION OF DRAWINGS:
The drawings show an embodiment of the present invention, wherein:
Figure 1: Illustrates a block diagram of Process Steps during live delivery of whiteboard chat.
Figure 2: Illustrates a block diagram of intelligent pixilation by the system of the present invention.
Figure 3: Illustrates a block diagram of Process steps for Replay.
Figure 4: Illustrates the architecture of the system for Interactive Learning System according to an embodiment of the present invention.
Figure 5: Illustrates a block diagram of Process Steps for live delivery of games and other activities.

DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to system for interactive learning, especially an electronic based or electronic presentation, its recordal and replay.

The terms user and participant are used interchangeably. The terms instructor and presenter are used interchangeably.

An embodiment of the present invention discloses a system for interactive learning through electronic presentation, for e.g. a webinar, or webinar videos, webinar recordings, eLearning videos, video compression. The webinar layout typically comprises of whiteboard layer comprising of annotations, or digital content, a video feed of instructor and chat feed from trainees and instructor. Specific embodiment of the present invention discloses a system for interactive learning as described below.

SYSTEM
The system comprises of a digital interface for presenter (101) broken into 3 separate layers – the whiteboard layer (130), the camera layer (110) and a chat layer (120). A digital interface for participants also referred as User interface (102) controlled by the presenter. The system further comprises of digital interface of the user (102), a server (103) comprising a database/ data storage (201) and one or more processors (202), a replay system (104) and a background timer (105), wherein the digital interface of the presenter (101) and the user (102) comprises of a camera (110), a chat layer (120) , a whiteboard layer (130), an activity manager layer (140) and a background timer (105) controlled by the processor (202) on the server (103).

Processor herein comprises of a media processor (213) and real-time communication processor (212), said the media processor (213) processes the camera (110) feed and transmits to the user devices through the server (103). The presenter side interface and the user side interface comprise one or more computer enabled devices connected over a network on a server.

The media services layer or media processor (213) compresses the camera feed for more efficient transmission and post-processing. Real-time communication layer / processor (212) on the cloud (103) that relays the instructor’s instructions (like a whiteboard annotation or an instruction to start an activity) to all participants/ users at the user interface (102). The processor processes real time data and stores in the database (201). The white board layer (130) is configured for real time multi-user collaboration at the interface (101, 102) through the server (103). The white board layer further provides individual personalized annotations activated or enabled by both the presenter (101) and the user (102), the activity manager layer (140) is configured to switch between different modes of live presentations or audio visual presentation media.

Presenter Interface (101) comprises of layers namely camera layer (110), chat layer (120), whiteboard layer (130), activity manager layer (140) and background timer (105) is controlled separately by presenter side browser / processor (202. The camera layer can contain a plurality of video streams - one from the local camera of the presenter as well as streams from other participants or users in the learning webinar. The camera layer (110) has the ability for the instructor to add participants who are in the learning webinar. When an instruction is sent to add a video of one or more of a plurality of participants, a signal is sent from the instructor’s local processor to the real-time communication processor (212), which in turn relays it the relevant participant/ user, thus remotely switching on the camera feed, which is then published to all participants. The camera layer (110) also stores the timestamp of when specific video streams were switched on and off, along with audio.

The chat layer (120) has the ability to display any chat message, along with the user details that has sent it, and whether a chat message is sent to all participants or users in the training webinar or only to a subset of participants.

The chat layer (120) of the instructor, also stores the chat messages as a time series of chat events, tagged with the chat message, sender name and not as a video, and sends it to the cloud based central storage system.

The whiteboard layer (130) allows the instructor to annotate handwritten notes, or other shapes, with the ability to change the colour, shape and other geometric parameters. The whiteboard layer captures the notes as a series of points with a start time and an end time or with the geometry of the shape with a start time and an end time, along with other properties of the shape such as colour, size, as may be applicable.

Further, on the whiteboard layer (130), certain series of points are compressed into Bezier curves for data compression and smoother rendering. Every shape / annotation captured on the whiteboard is sent via the real-time communication processor to all participants.

The activity manager (140) enables the instructor to increase interactivity among participants by enabling different modes such as collaborative whiteboard mode, where the whiteboard is open for multi-participant collaboration. In such a mode the shapes / annotations of every participant is sent via the real-time communication processor (212) to all participant whiteboards and displayed on each interface.

In another mode of the activity manager, the instructor can enable “facilitation mode”, such as a poll, live game, live poster, live sticky note board, and so on, where a working area is created for participants to individually contribute, facilitated by the instructor. Every contribution of every participant is displayed on the instructor’s interface (101). The background timer (105) runs continuously in the background and captures the timestamp of every event on the instructor including time when a remote video stream was enabled by instructor, when a chat message was sent, when a whiteboard annotation was made, when a change to the working area was made and when the instructor switched to another activity

The USER interface or Digital interface for the participant (102).
The digital interface of the participant (102) has the same 5 layers but the level of control is lower than that of the instructor (101). Subject to the instructor allowing it, the participant can switch on camera. The camera feed can also be switched on remotely by the instructor, enabled by the real-time communication processor (212). The chat layer (120) of each participant displays all chat messages including the messages published to everybody as well as private chat messages specific to that participant alone. Each participant can make personalized annotations on the whiteboard (130), which is unique to each participant. Such annotations / shapes are stored with the time stamp, and sent to the storage system on the cloud. Data compressions on annotations available for instructor are also available here.

If the instructor enables collaborative whiteboard mode, the real-time whiteboard with the annotations / shapes / layers of every participant, is displayed in real-time on each participant interface. If the “other facilitation mode” is enabled, the display shows the contributions of all participants. Further, each participant’s individual contributions to the working area of the current activity are stored with the timestamp and sent to the storage system on the cloud.

PROCESSOR
The real-time media services processor (213) does 2 kinds of processing on the camera feed of the instructor and participants - real-time processing and post-processing.

Realtime processing by intelligent pixilation as illustrated in figure 2
As part of real-time processing, an intelligent pixilation is enabled by the server (103) the camera feed of instructor and participant (if any) are analysed periodically (every 60 seconds), to check for the rectangular area pertaining to the face of the instructor and participant. Each frame is scanned from camera feed by the processor at periodical intervals (610). Identification of facial region (611), then, every frame is processed into a lower-quality alternative, wherein the areas outside of the designated rectangular area are pixelated / downgraded to a lower quality (612). This is a superior method to downgrading the entire frame. Finally, depending on each participant’s bandwidth, the regular quality frame or lower quality frame is sent by the media services processor (213) to the respective user (614).

As part of post-processing, the audio of the instructor from the camera feed of the instructor is extracted, and converted to text. Then, using the text, the audio is segmented into logical sections within each training activity. These sections are also stored on the cloud system (103).

The real-time communication processor (212) has the ability to send messages in broadcast mode (to all participants) or to specific people in the webinar. The processor is able to receive signals from the instructor to switch on specific participant camera feeds, which is relayed to the specific participant. The real-time communication processor (212) is able to send chat messages sent by the instructor or participant to all participants or to specific participants, depending on whether the sender chose to send it to all or privately to specific participants. The real-time communication processor sends every whiteboard annotation / shape with its geometric properties to all the participants in broadcast mode. If the instructor has enabled collaborative whiteboard mode, the real-time communication processor sends every whiteboard annotation/ shape of every participant to all other participants so that they can be displayed locally on their respective digital interfaces. If the instructor has enabled “facilitation mode”, the real-time communication processor sends incremental updates of the contribution of each participant’s working area to the instructor and all participations so that they can be displayed locally on their respective digital interfaces in real-time.

SERVER (103)
Specific embodiment discloses a cloud server (103). The storage system on the cloud, the data storage component or database (201) stores the chat messages stores the chat messages on the public channel as a time series of chat events, tagged with the chat message, sender and not as a video and sends it to the cloud based central storage system (103).

Further, the data base or database (201) on the cloud also stores private chat interactions between a plurality of participants tagged with the time stamp.
The storage system on the cloud captures the whiteboard layer of the instructor with the shape, the array of points or a series of compressed curves, its geometric properties, its colour, along with a start time and an end time when the shape was drawn.

The storage system on the cloud captures the whiteboard layer of each participant with the shape, the array of points or a series of compressed curves, its geometric properties, its colour, along with a start time and an end time when the shape was drawn. The storage system on the cloud captures every activity on the working area of each participant, along with a start time and an end time. The storage system also stores the time stamp of every segment in the learning webinar, as determined by the media processor.

REPLAY SYSTEM
An embodiment of the present invention discloses a replay system (104) configured to reconstruct and replay the presentation in a user customized manner and is configured to display based on the user device (102). The background timer (105) maintains a time stamp for all the events in the presentation.

The replay system allows the learning webinar system to be replayed to either the instructor or to any participant, with each user viewing a different version of the replay. Further, for the same user, the layout of the replay varies depending on the type of the device in which it is viewed (mobile or PC or tablet, including different versions for portrait or landscape view depending on how the device is held).

The replay system comprises a timer system as the backbone which controls the entire process of replay. The replay system first retrieves the data from the cloud storage system - the type of data retrieved is specific and unique to each user, either the instructor or each participant, depending on each user’s contribution to the learning webinar. The camera layer on the replay system displays one or more active camera feeds using the traditional video / MP4 video format. The camera layer dynamically adds more streams depending on the time-series of when such streams were added by the instructor during the live webinar. If the bandwidth of the user is low, the lower-quality video with each frame comprising high-quality frame for the rectangular area pertaining to the face of the person with lower-quality image for the rest of the area of the frame, as determined by the media processor, is displayed.

The whiteboard layer on the replay system relies on this background timer and renders the whiteboard as per the start times and end times captured. The whiteboard layer displays the contents either as a series of points or as a series of data-compressed bezier curves or as a series of shapes. The whiteboard layer is unique to each user, since it comprises the whiteboard annotations of the instructor along with the personalized annotations of each user, at the time they were made, almost as a reconstruction of the past.

Further, the whiteboard layer uses a special animation to render a series of points, by employing a special time-based interpolation function to render intermediate points in an animated manner by using the start time and end time of the annotation. This animation is implemented separately for a series of points or for the data-compressed bezier curves or for the shapes.

The chat layer also relies on the background timer and renders the chat layer as text on the interface, as per the start times and end times captured. The chat layer captures only the publicly available chat messages and private chat messages sent / received by the user. Hence, this layer is personalized to each user.

Since the whiteboard and chat layers update at a much lower frequency (only at 1 frame per sec or even lower), overall, significant savings are achieved in storage. A 1 hour webinar recording with whiteboard annotations and chat feed of trainees consumes 700 MB of bandwidth while this methodology consumes just 400 MB. Further, the ability of the camera feed to display lower quality frames further adds to the data compression.

Further, since the whiteboard layer is streamed independently, the trainee may pause the recording and make further personalized annotations on it, combining it with the existing annotations, which are again saved in the cloud storage system.

Further, each collaborative activity, for example, if collaborative whiteboard mode or facilitation mode is rendered intelligently, not as a video but through the background timer controlled display, with unique contributions of the user in the working area.

The replay interface renders differently for the same user depending on the device in which it is viewed, adjusting as per the real-estate on the screen, not just merely scaling like how videos do. For instance, on a vertical screen, the camera layer is displayed at the bottom, while on a horizontal screen; the camera layer is displayed on the right. Further, the chat layer is resized depending on the real-estate. Thus, a video-like experience is rendered responsively - this approach has only been tried on web pages and not on videos.

Another section of the replay interface shows the sections in the video as determined by the media processing service, which enables the user to “jump” to specific sections of the replay.

The replay interface allows playback at higher and lower speeds, wherein the background timer ticks at a corresponding higher and lower speed. The replay interface allows the instructor to clip away specific sections where the timer skips sections that are clipped, thereby allowing editing on the replay without having to edit any of the original content, which is how video streaming platforms provide the same functionality.

The method of for interactive learning through electronic presentation comprises of steps:
The video feed of the instructor or the electronic presentation presenter, is sent to a cloud or media or central server, for processing as an MP4 format, and an MP4 output is generated. a system for interactive learning through electronic presentation comprising of: a digital interface of the presenter or tutor comprising of a whiteboard layer, a camera layer, and a chat layer, and the camera feed is captured as MP4 and the whiteboard and chat layer are captured as series of points with start and stop point. Every annotation in the whiteboard is recorded with an array of points, a start time and end time. These are stored on the local browser of the presenter’s system interface. At the end of the electronic presentation these are sent to the cloud server for storage, as an array of chat messages.

Recording and Replay: comprises of starting of the recording, with streaming of camera feed in MP4 format. Loading of list of whiteboard annotations, and list of chat messages. Timer is linked to the MP4 feed and runs in the background. Between each successive timer tick, new annotations are rendered on the whiteboard. Between each successive timer tick, new chat messages are rendered on the chat feed.

Advantages: Consumes upto 40% lower bandwidth than traditional video formats like MP4. Brings in added interactivity to the webinar recording experience – the trainee / viewer can pause the video and make additional annotations on the whiteboard layer, which not be possible on the conventional systems.

Method
Processing during live delivery comprising of steps as illustrated in Figure 1
Start (501) of the webinar on initiation by the presenter (101);
Initiation (502) of timer at the presenter interface;
Recording of the time stamp by the chat layer (503) and time stamp of whiteboard layer captured (504) and transformation to Beizer curves (505), and transmission to cloud server (103) over a network for real-time processing.

Processing during delivery of games and other activities comprising of steps as illustrated in Figure 5
Start (501) of the webinar on initiation by the presenter (101);
Initiation (502) of timer at the presenter interface;
Recording of the time stamp of messages by the chat layer (503) and activity layer capturing of time stamp of both the instructor and the user, and transmission of data from the chat layer and the activity layer (140) cloud server (103) over a network for real-time processing;
Simultaneous recordal of camera feed by the camera and real time transmission (511) to server over a network;
intelligent pixilation (512) of the camera feed by the processor in the network, and
Transmission of the camera feed to the user, and
Wherein the data is sent from both the chat layer white board layer and camera to the server for real time processing. ,CLAIMS:WE CLAIM:
1. A system for interactive learning through electronic presentation, comprising of:
a digital interface for presenter (101);
a digital interface of the user (102);
a server (103) comprising a database/ data storage (201) and one or more processor (202) in network communication with the digital interface (101, 102);
a replay system (104); and
a background timer (105),
wherein the digital interface of the presenter (101) and the user (102) comprises of a camera (110), a chat layer (120) , a whiteboard layer (130), an activity manager layer (140) and a background timer (105) controlled by the processor (202) on server (103), the processor processes real time data and stores in the database (201), the white board layer (130) is configured for real time multi-user collaboration at the interface (101, 102) through the server (103), provides individual personalized annotations activated or enabled by both the presenter (101) and the user (102), the activity manager layer (140) is configured to switch between different modes of live presentations or audio visual presentation media,
wherein the replay system (104) is configured to reconstruct and replay the presentation in a user customized manner and is configured to display based on the user device (102), and
wherein the background timer (105) maintains a time stamp for all the events in the presentation.

2. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the processors (202) comprise of a media processor (213) and real-time communication processor (212), said the media processor (213) processes the camera (110) feed and transmits to the user devices through the server (103).

3. The system for interactive learning through electronic presentation as claimed in claim 2, wherein the real-time communication processor (212) is enabled to periodically analyze the camera (110) feed, choose the frame and downgrade or pixelate the area of the feed outside the frame, and communicate it by the media processor (213) to the user interface.

4. The system for interactive learning through electronic presentation as claimed in claim 3, wherein the real-time communication processor (212) is enabled to extract the audio feed, convert it into text and store in the data base (201) of the server (103).

5. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the different modes of live presentation is selected from one or more of games, group activities, poll activity, activities to be done individually or in groups.

6. The system for interactive learning through electronic presentation as claimed in claim 2, wherein the communication processor (212) is configured to send messages/ live feed/ in broadcast mode to all users or selected message to an individual user interface (102) relays or communicates the real-time information and instructions to the user device.

7. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the white board (130) is configured to be enabled by the presenter (101) and user (102).

8. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the camera (110) is configured to contain a plurality of audio-visual media presentations, from the camera (110) of the presenter (101) device and from the user side device.

9. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the activity manager (140) enables the collaborative white board mode, wherein each annotation on the white board of each user is shared real-time with multiple users and displayed on the individual interfaces (102).

10. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the camera (110) is configured to store the time stamp data of the start and end time of the real time audio-visual media presentations.

11. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the system is configured for the presenter (101) to add one or more user subscribed to the webinar enabled by communication of the camera (110) feed over server (103) to one or more user end devices.

12. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the chat layer is configured to update the real-time user details on receiving a message and is personalized for individual user.

13. The system for interactive learning through electronic presentation as claimed in claim 12, wherein the user details comprise of subset of users receiving the message and the user data.

14. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the chat layer (120) is configured to identify and display the user groups to or from whom a message is communicated.

15. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the chat layer of the presenter (101) interface is configured to store the details of chat, communicate it to the server (103) and store it in the database of the server (103).

16. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the server (103) is a Cloud Server (103).

17. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the data base in the server (103) is configured to store the chat data with time stamp from two or more users, and white board data with time stamp of both the user and the presenter (101).

18. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the white board is configured to capture the annotation data comprising time stamp, shape, colour and other data and share with the multiple users, and any data shared by one or more users is communicated real time to the white board of the user (102) interfaces via the server (103).

19. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the white board (130) is configured to compress relevant selected data in to beizer curves for smoother rendering.

20. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the activity manager (140) is configured for one or more modes comprising facilitation mode, collaborative mode and the like.

21. The system for interactive learning through electronic presentation as claimed in claim 20, wherein in facilitation mode, the real-time communication processor (212) sends incremental updates of the user (102) working area to the presenter (101).

22. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the events comprise of time stamp for presentation, chat, whiteboard annotation, change to the working area and activity switch by the presenter (101).

23. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the whiteboard of the user (102) is enabled for personalized annotations by the user with time stamping which are stored on the server (103).

24. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the camera (110) layer on the replay system (104) displays one or more active camera (110) feeds using the traditional video / MP4 video format.

25. The system for interactive learning through electronic presentation as claimed in claim 1, wherein the camera (110) layer dynamically adds more streams depending on the time-series of when such streams were added by the instructor during the live webinar/ audio-visual media presentation.

26. The system for interactive learning through electronic presentation as claimed in claim 1, wherein:
the replay system (104) is configured to be controlled by the background timer (105);
the camera (110) layer is played back in MP4 format;
the white board layer (130) renders the white board curve as Bezier curves in an animated fashion based on starting and ending time of each curve;
the chat layer (120) renders the chat messages of instructor and participant as per their recorded timestamps; and
the white board layer (130) is streamed independently, and whiteboard and chat layer (120) update at a frequency of less than 1 frame per second.

27. A method of interactive learning, comprising steps of:
live webinar presentation and presentation of games and other activities;
wherein webinar presentation comprises of:
webinar visualization by a user at a user device and initiated by a presenter at the presenter interface (101);
initiation (502) of timer at the presenter interface;
recording of the time stamp by the chat layer (503) and time stamp of whiteboard layer captured (504) and transformation to Beizer curves (505), and transmission to cloud server (103) over a network for real-time processing and transmission of data to the user;
wherein presentation of games and other activities comprises of:
webinar visualization by a user at a user device and initiated by a presenter at the presenter interface (101);
initiation (502) of timer at the presenter interface;
recording of the time stamp of messages by the chat layer (503) and activity layer capturing of time stamp of both the instructor and the user, and transmission of data from the chat layer and the activity layer (140) cloud server (103) over a network for real-time processing;
simultaneous recordal of camera feed by the camera and real time transmission (511) to server over a network;
intelligent pixilation (512) of the camera feed by the processor in the network; and
transmission of the camera feed to the user, and
wherein the data is sent from both the chat layer white board layer and camera to the server for real time processing.