Scanner Redirection Video Encoding Bandwidth Reduction
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Solution Overview
Problem
Scanner redirection in remote desktop services consumes significant network bandwidth, especially when acquiring large numbers of images, leading to network congestion.
Innovation Solution
The implementation of a scanner redirection method that compresses images into a single video file using video encoding algorithms, such as H.264, and transmits this file from the client computer to the remote virtual machine, which then decodes it to retrieve the images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If individual images are transmitted from client computer to remote computer through scanner redirection, then image acquisition is achieved, but network bandwidth consumption increases and network congestion occurs
Solution Approach 1:
The patent merges multiple individual images into a single compressed video file for transmission. Instead of sending each image separately across the network, the system encodes a sequence of images as one video file, significantly reducing the total data volume transmitted and thereby decreasing network bandwidth consumption and avoiding congestion.
Solution Approach 2:
The patent changes the data format parameter from individual image files to a compressed video file. By transforming the transmission medium from raw image data to video-encoded data, the system achieves efficient compression while maintaining image quality, thus resolving the contradiction between transmission efficiency and bandwidth consumption.
2Quantity of substance
If multiple individual images are transmitted through scanner redirection, then complete image data is delivered, but network congestion is caused
Solution Approach 1:
The system changes the data representation parameter by encoding multiple images as a video stream. This transformation compresses the total data volume while preserving all image information, thereby delivering complete image data without causing network congestion.
Solution Approach 2:
The patent creates a compressed copy of the image sequence in the form of a video file. This compressed copy contains all the essential image data but in a much more compact format, allowing complete image transmission with minimal network impact.
3Ease of operation
If scanner redirection transmits images to remote computers, then remote applications can access images, but network burden increases
Solution Approach 1:
The patent combines multiple images into a single video file that can be efficiently transmitted and then decoded at the remote end. This merging approach maintains ease of operation by providing full image access capability while dramatically reducing the network bandwidth required for transmission.
Solution Approach 2:
The video encoding/decoding process acts as an intermediary that optimizes the data transmission. The client computer encodes images into a video format, transmits the compressed data, and the remote computer decodes it back into individual images, thereby facilitating easy image access with minimal network burden.
Data Source
AI summary
A scanner redirection method for a remote desktop computer system, wherein the remote desktop computer system includes a client computer and a remote computer, includes the steps of: transmitting at least one request to the client computer to acquire one or more first images from an image capturing device connected to the client computer; upon receiving a compressed video file that was created by the client computer in response to the at least one request and that was then transmitted by the client computer, applying a video decoding algorithm to expand the compressed video file into a decompressed video file having one or more second images; and providing each of the one or more second images to an application running in the remote computer.