Server-Side Shortcut Key Analysis for Extended Media Control
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Solution Overview
Problem
Mobile devices with limited key inputs restrict user control functions, particularly in media streaming services, as users can only perform basic operations like forward, backward, pause, and stop with fixed intervals, and extended functions like double rate forward/backward require additional keys and software modifications.
Innovation Solution
Implementing a method that processes control messages using a timer-based approach to determine when to trigger shortcut key analysis, allowing extended control operations without modifying existing terminal software or hardware, by enabling a first timer after each control message and triggering analysis if it does not expire, enabling interpretation of control messages according to predetermined rules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional dedicated keys are added to the terminal to provide extended control functions (double rate forward/backward), then the service control functions are enhanced, but the device complexity and cost increase significantly
Solution Approach 1:
The patent applies universality by enabling existing navigation keys to perform multiple functions. The server analyzes sequences of control messages from the limited keys to recognize extended operations such as double rate forward/backward, program switching, and fast seeking, allowing the terminal to achieve enhanced control capabilities without adding physical keys or modifying terminal software.
Solution Approach 2:
The patent introduces the server as an intermediary that performs shortcut key analysis. Instead of requiring the terminal to have complex local processing capabilities, the server receives control messages and analyzes their sequences to determine the user's intended extended operations, thereby providing enhanced functionality through server-side intelligence rather than client-side hardware modifications.
2Adaptability or versatility
If shortcut key analysis is triggered frequently to recognize extended operations, then the service control functions are enhanced, but the processing overhead and system complexity increase
Solution Approach 1:
The patent implements periodic action by using a timer mechanism to trigger shortcut key analysis only at appropriate intervals. When a control message is received, a timer is started; if another message arrives before the timer expires, the analysis is triggered. This periodic triggering approach balances the need for recognizing extended operations with the need to avoid excessive processing overhead and system complexity.
Data Source
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AI summary
A method for processing a control message sent by a terminal is provided according to the present invention. The method includes determining whether or not to trigger a shortcut key analysis when the control message is sent from the terminal and accomplishing various extended control operations by a shortcut key analysis. A message processor, a media server, and a media service system are also provided. With the method of the present invention, the terminal may utilize the existing keys to send a series of control messages in accordance with a transmission sequence mechanism recognized by the server. The server may interpret the control message according to a predetermined rule and thus the purpose of extending the service control functions at the terminal side can be accomplished. Accordingly, no modification is needed to the software or hardware of the existing terminal, which bring convenience to the users.