Video Decoder Control via Mobile Devices
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Solution Overview
Problem
Conventional video playback systems are inconvenient as they typically allow only one remote control per video decoder, leading to issues if the remote is lost or damaged, and require users to memorize and input protection passwords for different video channels, causing inconvenience in video viewing.
Innovation Solution
A video playback system that enables multiple mobile communication devices to control a single video decoder via an internet-connected playback control server, allowing users to transmit selection messages to select and decode videos, thereby eliminating the need for a dedicated remote control and simplifying access control through password management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If one remote control is allotted to each video decoder, then the video decoder can be controlled, but the system becomes vulnerable to remote control loss or damage and requires users to memorize multiple protection passwords
Solution Approach 1:
The patent creates virtual copies of the remote control function through multiple mobile communication devices. Instead of relying on a single physical remote, the system allows multiple mobile devices to serve as remote controls, each capable of transmitting control signals to the video decoder via the playback control server. This eliminates the vulnerability of single remote loss while avoiding the complexity of multiple protection passwords.
Solution Approach 2:
The playback control server acts as an intermediary between the mobile communication devices and the video decoder. It receives control signals from multiple mobile devices, manages authentication, and forwards appropriate control commands to the video decoder. This intermediary layer simplifies the system architecture and eliminates the need for users to directly manage multiple protection passwords.
2Adaptability or versatility
If multiple mobile communication devices control the same video decoder, then the convenience and flexibility of the system is improved, but the device complexity increases
Solution Approach 1:
The patent implements universality by allowing any mobile communication device to function as a remote control for the video decoder. The playback control server is designed to accept control signals from multiple mobile devices, manage their authentication, and coordinate their control commands. This multi-functional approach increases system versatility while the server-based architecture keeps individual device complexity low.
Data Source
AI summary
A video playback system includes a content provider server for providing video signals of a first and a second video; a video decoder; a display for displaying video content outputted from the video decoder; a playback control server for controlling the video decoder; a first mobile communication device for transmitting a first selection message to the playback control server via internet at a first time point; and a second mobile communication device for transmitting a second selection message to the playback control server via internet at a second time point. The playback control server utilizes the video decoder to receive video signals of the first video according to the first selection message, and utilizes the video decoder to receive video signals of the second video according to the second selection message after the second time point.