Master-Slave Signal Conversion Circuit Timing Alignment
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Solution Overview
Problem
In high-resolution display systems, synchronization issues between transmitter and receiver sets lead to timing errors, necessitating a large frame buffer to prevent overflow, which increases hardware costs and circuit sizes.
Innovation Solution
A signal transmission architecture with multiple signal conversion circuits, where one circuit acts as a master to synchronize the others, reducing timing errors and minimizing the frame buffer size by controlling signal timings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If multiple sets of transmitter and receiver are used to transmit pixel data in high-resolution display systems, then transmission speed requirement is met, but synchronization issues occur between transmitter and receiver sets causing timing errors
Solution Approach 1:
A master transmitter is introduced as an intermediary that generates a reference clock signal and distributes it to all slave transmitters. This master transmitter acts as a mediator that coordinates the timing of all transmitter sets, ensuring they all operate from a common time base and thereby eliminating synchronization drift between transmitters and receivers.
Solution Approach 2:
The system implements a feedback mechanism where the master transmitter continuously provides clock signals to slave transmitters, and the timing relationships are maintained through this continuous feedback loop. This ensures that any timing deviations are corrected by the reference clock, maintaining synchronization accuracy across all transmitter sets.
2Reliability
If a large-size frame buffer is provided to store pixel data temporarily and avoid overflow, then synchronization timing issues are resolved, but hardware cost and circuit size increase
Solution Approach 1:
The invention extracts the timing coordination function from the frame buffer and relocates it to the master transmitter. By generating and distributing a reference clock signal at the transmitter side, the system eliminates the need for a large frame buffer that would otherwise be required to compensate for timing misalignment, thereby reducing memory requirements while maintaining synchronization.
3Reliability
If timing alignment is achieved between multiple transmitter and receiver sets, then synchronization is improved, but device complexity increases
Solution Approach 1:
The invention merges the timing generation function into a single master transmitter that produces a reference clock signal. All other transmitters synchronize to this single reference, consolidating the timing control complexity into one device rather than requiring each transmitter to independently manage synchronization, thereby simplifying the overall system complexity while achieving timing alignment.
Data Source
AI summary
A signal transmission device includes a first master signal conversion circuit and at least one first slave signal conversion circuit. The first master signal conversion circuit is configured to receive first partial data of output data from a data generation unit, convert the first partial data of the output data into a first transmission signal correspondingly, and output a first synchronization signal. The at least one first slave signal conversion circuit is configured to receive at least second partial data of the output data and convert the at least second partial data of the output data into at least one second transmission signal correspondingly, wherein the at least one first slave signal conversion circuit controls a timing of the at least one second transmission signal according to the first synchronization signal.