Overlapping Memory Space Configuration for Video Signal Processing
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Solution Overview
Problem
Conventional television signal processing apparatuses inefficiently manage memory space, leading to increased production costs and power consumption due to all signal processing circuits remaining enabled even when not in use, resulting in suboptimal memory utilization and power-saving deficiencies.
Innovation Solution
A memory space configuration method where overlapping first and second memory spaces are used, enabling only the processing circuit corresponding to the active signal source, allowing for efficient memory utilization and power-saving by disabling unnecessary hardware circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all signal processing circuits are enabled simultaneously in conventional architecture, then all circuits can access their designated memory spaces, but memory space utilization efficiency deteriorates and production costs increase
Solution Approach 1:
The patent implements dynamic memory space allocation where the memory space configuration changes based on the currently active signal source. When switching between analog TV, digital TV, and multimedia signal sources, the system dynamically assigns memory spaces to only the active processing circuits, allowing the same memory region to be reused by different circuits at different times. This dynamic approach resolves the contradiction by maintaining circuit accessibility when needed while optimizing memory utilization through time-multiplexed access.
2Reliability
If all signal processing circuits remain enabled continuously, then circuit functionality is maintained, but power consumption increases
Solution Approach 1:
The patent employs periodic enabling and disabling of signal processing circuits based on the currently active signal source. Instead of keeping all circuits enabled continuously, the system periodically switches between different processing circuits (analog TV processing, digital TV processing, multimedia processing) and enables only the relevant circuit for the current signal source. This periodic action maintains circuit functionality when needed while significantly reducing power consumption by keeping inactive circuits disabled.
3Adaptability or versatility
If memory spaces are prearranged for all signal sources, then all processing circuits can operate simultaneously, but device complexity and production costs increase
Solution Approach 1:
The patent implements a universal memory space configuration where the same memory regions serve multiple signal processing circuits at different times. Instead of dedicating separate memory spaces for analog TV, digital TV, and multimedia processing, the system uses a single set of memory spaces that are universally accessible to different circuits based on the active signal source. This multi-functional approach maintains adaptability to handle all signal types while reducing device complexity and production costs by eliminating redundant memory allocations.
Data Source
AI summary
A memory space configuration method applied in a video signal processing apparatus is provided. The method includes: arranging a first memory space and a second memory space in a memory, the first and second memory spaces being partially overlapped; determining a type of a signal source; when the signal source is a first video signal source, enabling a first processing circuit and buffering data associated with the first video signal source by using the first memory space; and, when the signal source is a second video signal source, enabling a second processing circuit and buffering data associated with the second video signal source by using the second memory space. The second processing circuit is disabled when the first processing circuit is enabled; the first processing circuit is disabled when the second processing circuit is enabled.