Display Apparatus Signal Processor Activation Control
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Solution Overview
Problem
Display apparatuses face delays in channel switching when switching between analog and digital video signals due to the need to activate and deactivate signal processing resources, which can lead to increased system load and performance issues.
Innovation Solution
Incorporating a controller that manages the activation and deactivation of signal processors for both analog and digital signals, allowing for simultaneous processing of one signal while preparing resources for the next, and using stored sequences to optimize resource allocation based on system load thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the display apparatus selectively activates and deactivates signal processing blocks based on video signal type, then system resource efficiency is improved, but channel switching time increases
Solution Approach 1:
The patent applies preliminary action by maintaining signal processing blocks in a standby state with preserved configuration information, allowing them to be quickly reactivated when needed. This pre-prepared state enables fast channel switching while keeping resources efficiently managed, as blocks are neither fully active (wasting resources) nor completely deactivated (causing switching delays).
Solution Approach 2:
The patent implements dynamics by creating a flexible resource management system that can dynamically adjust the state of signal processing blocks between active, standby, and deactivated states based on real-time channel switching requirements. This dynamic approach allows the system to optimize both resource efficiency and switching speed adaptively.
2Speed
If multiple signal processing blocks are maintained active for quick switching, then channel switching time is reduced, but system load increases
Solution Approach 1:
The patent applies partial action by maintaining only the necessary configuration information and partial operational state in signal processing blocks during standby, rather than keeping them fully active. This partial maintenance of state allows quick reactivation while consuming fewer system resources, thus reducing overall system load while still achieving fast channel switching.
Solution Approach 2:
The patent uses parameter changes by transitioning signal processing blocks between different operational states (active, standby, deactivated) with varying resource consumption levels. By changing the operational parameters of these blocks based on switching frequency and system conditions, the system optimizes the balance between switching speed and system load.
3Productivity
If signal processing blocks are completely deactivated when not in use, then system resource efficiency is improved, but activation time for next channel increases
Solution Approach 1:
The patent applies preliminary action by preserving configuration information and operational parameters in signal processing blocks even when deactivated. This pre-saved information allows the blocks to be quickly reactivated without going through a complete initialization process, thus reducing activation time while maintaining resource efficiency during standby periods.
Solution Approach 2:
The patent uses copying by creating and storing configuration templates and parameter sets that can be rapidly copied to signal processing blocks during activation. Instead of reconstructing entire processing configurations from scratch, the system copies pre-prepared data structures, significantly reducing activation time while keeping blocks in a low-power state.
Data Source
AI summary
A display apparatus includes a display configured to display an image based on at least one between received first and second broadcast signals, a first signal processor configured to selectively activate and inactivate an operation for processing the first broadcast signal, a second signal processor configured to selectively activate and inactivate an operation for processing the second broadcast signal, and a controller configured to control the first signal processor and the second signal processor to selectively activate or inactivate the operations for processing the first broadcast signal and the second broadcast signal in response to a command for switching between the first broadcast signal and the second broadcast signal.