Display Apparatus Reproduction Position Determination
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Solution Overview
Problem
Existing methods for determining the reproduction position of content in a display apparatus either prioritize accuracy at the expense of search speed or vice versa, failing to achieve a balance between the two, especially when index information is incomplete or erroneous.
Innovation Solution
A display apparatus and method that determine the reproduction position based on the position relationship between a specific reproduction time and the current reproduction time, using a processor to calculate time and position variations from start and end positions stored in a buffer, allowing for swift and precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If binary search method or complete search method is used to determine reproduction position, then accuracy is improved, but search speed deteriorates
Solution Approach 1:
The patent pre-calculates and stores time information and position information at start and end positions of reproduction sections during content encoding or buffering. When a seek operation is needed, the system directly retrieves these pre-computed values and performs linear interpolation, avoiding the need for time-consuming binary or complete searches through the content data.
Solution Approach 2:
The patent divides the content into multiple reproduction sections with defined start and end positions. Each section has pre-calculated time and position information stored independently. This segmentation allows the system to quickly locate the appropriate section and use interpolation within that section, rather than searching the entire content, thus improving both speed and maintaining accuracy.
2Speed
If linear search method is used to determine reproduction position, then search speed is improved, but accuracy deteriorates
Solution Approach 1:
The patent pre-calculates time and position information at section boundaries and stores them for quick retrieval. This preliminary action enables the system to use simple linear search to locate the appropriate section, then apply accurate linear interpolation within that section to determine the exact reproduction position, thus achieving both fast search speed and high accuracy.
Solution Approach 2:
The patent introduces pre-calculated time and position information at section start and end points as intermediary data. This intermediary information serves as reference points that bridge the gap between fast linear search capability and accurate position determination, allowing the system to achieve both speed and precision without compromising either.
3Speed
If index information is used to determine reproduction position, then search speed is improved, but reliability deteriorates when index information is incomplete or erroneous
Solution Approach 1:
The patent pre-calculates and stores time and position information at section boundaries during content encoding or buffering, creating a redundant reference system. This preliminary action ensures that even if index information in the header is incomplete or erroneous, the system can rely on these pre-stored values to accurately determine reproduction positions, thus maintaining reliability while preserving fast search capability.
Solution Approach 2:
The patent creates a backup reference system by pre-calculating and storing time and position information at section boundaries before reproduction occurs. This beforehand cushioning protects against potential failures or errors in the primary index information, ensuring that the system can always reliably determine reproduction positions even when index information is incomplete or erroneous.
Data Source
Figure 1A~1B
Figure 2A~3
Figure 4~6
AI summary
A display apparatus is provided. The display apparatus includes: a display configured to display a content; a buffer configured to store data corresponding to a predetermined reproduction section of the content with reference to a current reproduction time of the content; and a processor configured to, in response to a command to display a specific reproduction time of the content being received, determine a reproduction position of the content corresponding the specific reproduction time based on a position corresponding to the predetermined reproduction section based on a position relationship between the specific reproduction time and the current reproduction time, or to determine the reproduction position of the content corresponding to the specific reproduction time based on at least one of a start position and an end position of the content.