Remote Screenshot for Wireless Projection Systems
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Solution Overview
Problem
Current wireless projection systems cannot capture multi-window images or annotations made on an Interactive Flat Panel (IFP) during conferences, requiring participants to physically interact with the receiver, which is inconvenient and disrupts the conference.
Innovation Solution
An image transmission device and method enabling remote screenshot capabilities, allowing users to capture complete conference records, including multi-window images and annotations, from their own computer without interrupting the conference by using a sender and receiver with communication circuits to transmit and store the captured images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a participant uses the receiver to capture images of multi-window and annotations, then complete conference records can be obtained, but the participant must physically move to the receiver and operate it, which is inconvenient and interrupts the conference
Solution Approach 1:
The patent implements remote screenshot functionality where the sender device can capture images of the receiver's display screen and store them locally. This creates a copy of the visual information without requiring physical access to the receiver, allowing participants to obtain complete conference records including multi-window and annotation information from their own devices.
2Loss of information
If a participant plugs USB drive into the receiver to store captured images, then images can be saved, but this process is inconvenient and interferes with the conference proceeding
Solution Approach 1:
The system enables direct copying of captured images from the receiver to the sender's local storage device through wireless communication. This eliminates the need to physically connect USB drives to the receiver, allowing participants to save conference records without leaving their seats or interrupting the meeting flow.
Solution Approach 2:
The patent replaces the mechanical USB connection process with a wireless digital transmission system. The communication circuits transmit image data electronically between devices, substituting the physical plug-and-play mechanism with a seamless wireless data transfer process that occurs without physical intervention.
3Device complexity
If wireless projection only provides signal-way image projection function, then the system remains simple, but participants cannot capture multi-window information or annotations on Interactive Flat Panel
Solution Approach 1:
The patent enhances the wireless projection system by adding screenshot capture and storage functionality to the existing projection capability. The sender device can both receive projected images and capture them locally, creating a multi-functional system that preserves visual information without increasing overall system complexity significantly.
Data Source
AI summary
A remote screenshot method adapted to a sender and a receiver having a communicable connection with the sender, wherein the sender electrically connects to an electronic device to receive an image signal outputted by the electronic device, the receiver electrically connects to a display device to show the image signal, and the remote screenshot method comprises: sending a capturing instruction through a first communication circuit by the sender; receiving the capturing instruction through a second communication circuit by the receiver; obtaining a captured image according to the capturing instruction by the sender, wherein the captured image is associated with the image signal shown by the display device; sending the captured image to the first communication circuit through the second communication circuit by the receiver; and storing the captured image in a storage circuit by the sender.


