Web Browser Remote Desktop Video Stream Encoding
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Solution Overview
Problem
Conventional remote presentation sessions using web browsers experience low frame rates and jerky motions due to the subdivision of remote desktop images into tiles, leading to a poor user experience compared to dedicated remote presentation session applications.
Innovation Solution
Implementing a client with a web browser configured to display video and receive user input, establishing an Ajax connection with the server for authentication, and asynchronously sending user input as XML or JSON, with the server encoding graphical output as video for display via the web browser.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the remote desktop image is subdivided into tiles and sent to the client via web browser, then the client can access remote desktop without dedicated application, but the frame rate becomes low and motions become jerky
Solution Approach 1:
The patent replaces the traditional tile-based image transmission mechanism with a video stream transmission mechanism. Instead of sending individual image tiles that require assembly and updating, the system captures the remote desktop output as a continuous video stream, encodes it using video compression algorithms, and transmits it to the client for playback. This substitution of the transmission mechanism fundamentally improves frame rate and motion smoothness while maintaining web browser accessibility.
2Speed
If dedicated remote presentation session application is installed on client, then high frame rate and smooth motion are achieved, but client accessibility is limited
Solution Approach 1:
The patent makes the video stream transmission mechanism universally compatible with any web browser that supports HTML5 video playback, eliminating the need for dedicated remote presentation applications. The server component handles video capture and encoding, while the client component uses standard web browser capabilities to receive and display the video stream. This multi-functional approach allows the same system to serve both high-performance remote desktop needs and broad client accessibility requirements.
3Speed
If video stream is used for remote desktop transmission, then frame rate and user experience are improved, but network bandwidth consumption increases
Solution Approach 1:
The patent dynamically adjusts video encoding parameters such as resolution, bitrate, frame rate, and compression level based on network conditions, client capabilities, and content characteristics. The system can switch between different video quality levels and encoding formats to optimize the balance between frame rate performance and network bandwidth consumption. This parameter adjustment allows the system to maintain high frame rates when bandwidth is available while reducing bandwidth usage when network conditions are constrained.
Data Source
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AI summary
An invention is disclosed for conducting a remote presentation session with a client that uses a web browser to conduct the session. In embodiments, a proxy server exists between the remote presentation server and the client. The proxy server establishes a HTTP session with the client and a remote presentation session with the client. The server generates graphics encoded with a remote presentation protocol and sends them to the proxy, which re-encodes them as video and sends them to the client for display in the web browser. The client captures user input at the web browser and sends it to the proxy, which encodes it with the remote presentation protocol and sends it to the server to be processed.