Multi-Decoder Video Playback System with Mobile Control
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Solution Overview
Problem
Conventional video playback systems require users to repurchase and manually fast-forward videos when switching between multiple decoders, leading to inconvenient and redundant charging, and limit remote control functionality due to directional infrared signal transmission constraints.
Innovation Solution
A video playback system with multiple decoders and a mobile communication device that allows seamless video playback transfer between decoders via an internet-connected playback control server, enabling remote control and preventing duplicate charges by using a mobile device to send selection and modification messages for video signal routing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a user utilizes multiple video decoders for video playback, then the user can watch videos in different locations, but the user is charged separately for each decoder and cannot continue playback across decoders
Solution Approach 1:
The patent implements a universal account system that allows a single user account to be bound with multiple video decoders. The account-based authentication mechanism enables users to access video services across different decoders without separate purchases, making the service universally accessible across multiple devices while maintaining centralized control and billing.
Solution Approach 2:
The patent introduces a server as an intermediary between the user and multiple video decoders. The server manages account bindings, verifies authentication information, and coordinates video playback across different decoders. This intermediary enables seamless transitions between decoders by mediating the authentication and playback continuation processes.
2Adaptability or versatility
If a user pauses video on one decoder and switches to another decoder, then the user can change viewing location, but the user must repurchase and manually fast-forward the video
Solution Approach 1:
The patent implements continuous video playback across multiple decoders by maintaining playback state information on the server. When a user pauses video on one decoder and switches to another bound decoder, the server retrieves the paused position and continues playback from that exact point, ensuring the useful action of video viewing continues without interruption or repetition.
Solution Approach 2:
The patent performs preliminary authentication and state synchronization when the user first binds multiple decoders to their account. The server pre-configures the decoders with the user's authentication information and playback preferences, so that when switching between decoders, the system is already prepared to continue playback seamlessly without requiring repurchase or manual intervention.
3Reliability
If conventional remote control uses directional infrared rays, then the control signal can be transmitted, but the user must point the remote precisely at the decoder and stay within limited range
Solution Approach 1:
The patent replaces the mechanical directional infrared control system with a mobile terminal-based control system. Instead of requiring precise physical alignment and proximity, the mobile terminal communicates with the video decoder through wireless networks (WiFi, 4G/5G), substituting the line-of-sight mechanical constraint with network-based communication that allows control from any location within network range.
4Adaptability or versatility
If the video decoder is placed outside remote control range, then the decoder can be positioned flexibly, but the user cannot manipulate the decoder
Solution Approach 1:
The patent transitions the control dimension from physical space (infrared line-of-sight) to network space (internet connectivity). The mobile terminal can control the video decoder through network connections regardless of physical distance or location, adding a new dimensional layer of control that transcends spatial constraints and enables operation from anywhere with network access.
Data Source
AI summary
A video playback system with multiple video decoders includes a content provider server for providing video signals of a target video; a first video decoder; a first display for displaying video content outputted from the first video decoder; a second video decoder; a second display for displaying video content outputted from the second video decoder; a playback control server for controlling the first and the second video decoders; and a mobile communication device for transmitting selection messages to the playback control server via internet and then transmitting modification messages to the playback control server via internet. The playback control server opts to utilize the first video decoder to receive a portion of video signals of the target video according to the selection message, and opts to utilize the second video decoder to receive subsequent video signals of the target video according to the modification message.