Dynamic Document Sharing via Page-Level Image Transmission
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Solution Overview
Problem
Current desktop sharing technologies are limited in allowing attendees to freely navigate within shared documents during online meetings, as they require the entire document to be uploaded and downloaded, and lack feedback to the presenter on which portion of the document each attendee is viewing.
Innovation Solution
A system that identifies an active document-sharing window, parses the document into pages, and transmits page images to attendee devices, allowing attendees to view different pages than the presenter, while providing feedback to the presenter on which pages each attendee is viewing through a framework that enables dynamic sharing and navigation within the document.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire document is uploaded and downloaded to each attendee prior to viewing, then all attendees can access the complete document content, but the time required to start the sharing session increases significantly
Solution Approach 1:
The patent segments the document into individual pages and transmits them as separate image files. Instead of uploading the entire document at once, the system sends only the pages that need to be viewed, allowing attendees to access the document quickly without waiting for complete file transfer. This segmentation enables on-demand page delivery, resolving the contradiction between ensuring document accessibility and reducing setup time.
2Stability of the object's composition
If the same document pages are displayed to all attendees simultaneously as the presenter, then consistency is maintained, but attendees cannot independently navigate to different portions of the document
Solution Approach 1:
The patent implements a dynamic page transmission system where attendees can independently navigate to different pages of the document. When an attendee requests a specific page, the system dynamically transmits that page image to the attendee's device. This allows each attendee to freely navigate to any portion of the document while the presenter continues their presentation, providing both consistency for the main presentation and adaptability for individual attendee needs.
3Reliability
If document sharing is limited to specific document types with centralized server upload, then system control is maintained, but the complexity of the sharing system increases and flexibility decreases
Solution Approach 1:
The patent enables the presenter's device to automatically capture and transmit document pages without requiring centralized server intervention. The system uses the presenter's device to take screenshots of document pages and directly transmit these images to attendees' devices. This self-service approach reduces system complexity by eliminating the mandatory centralized upload step while maintaining control through the presenter's device, allowing any document type to be shared without restrictive format limitations.
Data Source
AI summary
In a sharing session between a presenter and several attendees, the presenter can share any type of document quickly and without substantial prior preparation. The presenter's device identifies an active document-sharing window within the desktop sharing environment, and detects if there is a shared document in the active window. The presenter's device creates a framework for any detected shared document that is transmitted to each of the attendee devices. The framework contains information about the pages in the shared document, such that an attendee device can request a specific page in the shared document. At least the first page of the shared document is rendered to a page image and transmitted to the attendee devices. Upon request from an attendee device, page images of any of the remaining pages may be sent to the attendee device, allowing each attendee to view a different page than the presenter.