Digital TV Decoder Recording Trigger Adaptation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for programming recordings by digital television decoders either fail to account for programming deviations, leading to incomplete recordings, or are not robust enough to trigger recordings without continuous receipt of standardized tables.
Innovation Solution
A method that dynamically switches between two operating modes: one based on detection of identifiers in standardized tables and another based on theoretical start times, ensuring recordings are triggered and completed even in the absence of real-time data, by calculating a connection cutoff time to ensure timely receipt of updated information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the digital television decoder uses the first method (theoretical start time and duration), then the recording method is simple, but the recording may be incomplete when programming deviations occur
Solution Approach 1:
The patent implements dynamic operation modes that switch between static theoretical timing and dynamic standardized table-based timing. The decoder transitions from a fixed recording approach to an adaptive approach that responds to real-time broadcast information, resolving the contradiction between simplicity and reliability by introducing controlled dynamic behavior.
Solution Approach 2:
The patent incorporates feedback mechanisms where the decoder continuously monitors standardized tables containing actual broadcast timing information and adjusts recording operations accordingly. This feedback loop allows the system to correct deviations from theoretical timing, ensuring complete recordings while maintaining operational simplicity through automated adjustment.
2Measurement precision
If the digital television decoder uses the second method (standardized table detection), then the recording precision is improved, but the system becomes less robust when standardized tables are not received
Solution Approach 1:
The patent changes the operational parameters of the decoder by introducing multiple operation modes with different timing strategies. When standardized tables are available, the system uses precise table-based timing; when tables are unavailable, it switches to theoretical timing parameters. This parameter switching resolves the contradiction by adapting system behavior to data availability conditions.
Solution Approach 2:
The patent prepares for potential failure of standardized table reception by implementing fallback mechanisms in advance. The decoder is pre-configured with theoretical timing information that serves as a cushion against the loss of real-time table data, ensuring that recording operations can continue robustly even when precision timing information becomes unavailable.
3Reliability
If the digital television decoder switches between operation modes based on standardized table reception, then both precision and robustness are achieved, but the device complexity increases
Solution Approach 1:
The patent makes the decoder universally adaptable by implementing multiple operation modes within a single system. The decoder can function in both table-based precise mode and theoretical timing robust mode, as well as hybrid modes combining both approaches. This multi-functionality resolves the contradiction by integrating diverse operational capabilities into one unified device without requiring separate systems.
Data Source
Figure 1~2
Figure 3~4
AI summary
One aspect of the invention relates to a method for programming a recording of a program by means of a digital television decoder. The digital television decoder has a service plan comprising a plurality of services. The program to be recorded is broadcast on a first service from said plurality. The method is characterized in that the digital television decoder is aware of the first service, an identifier of the program to be recorded, and a theoretical start time of the program to be recorded. The method is also characterized in that, if the digital television decoder receives a first standardized table from the first service, the first standardized table comprising, at any moment, a first data frame related to a first program currently being broadcast on the first service and a second data frame relating to a second program broadcast on the first service immediately after the first program, each program-related data frame comprising an identifier of said program, the digital television decoder is put in a first operational mode in which said decoder starts recording the program to be recorded on the basis of detection of the identifier of said program in the first standardized table, and, if the digital television decoder detects no reception of the first standardized table, the digital television decoder is put in a second operational mode according to which said decoder starts recording the program on the basis of the theoretical start time of the program.