Signal Receiver Boundary Detection for Equalizer Convergence
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Solution Overview
Problem
Current signal receiving circuits lack a mechanism to quickly analyze the quality of signals and evaluate the convergence status of equalizer circuits in portable devices, such as digital cameras and MP3 players, which affects the adjustment of input signals.
Innovation Solution
A signal receiving circuit comprising a receiving circuit, an adjustment circuit, and a boundary detection circuit that detects specific data patterns and calculates a gap value between signal boundaries to reflect the status of the adjustment circuit, allowing for rapid evaluation of the convergence status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional signal receiving circuits use equalizer and clock data recovery circuit for signal compensation and phase locking, then signal quality can be maintained, but the convergence status evaluation is slow and lacks quick analysis mechanism
Solution Approach 1:
The patent applies preliminary action by pre-processing the input signal to extract data patterns and calculate gap values before the equalizer convergence evaluation. The boundary detection circuit identifies signal boundaries and computes gap values in advance, providing ready-to-use metrics that accelerate the convergence status evaluation without waiting for traditional slow analysis methods
Solution Approach 2:
The patent introduces an intermediary mechanism by using gap value calculation as a intermediate metric between raw signal reception and convergence status evaluation. The boundary detection circuit acts as an intermediary that transforms the complex signal analysis into a simplified gap value measurement, which then serves as a quick indicator for convergence status
2Adaptability or versatility
If the receiver circuit uses algorithm such as LMS to evaluate equalizer convergence status, then adaptation capability is achieved, but the evaluation process is time-consuming and lacks rapid feedback
Solution Approach 1:
The patent applies the taking out principle by extracting specific data patterns from the input signal and isolating the gap value metric from the complex signal waveform. The boundary detection circuit extracts meaningful information (gap values) from the overwhelming signal data, providing a focused evaluation metric that enables rapid convergence assessment without processing the entire signal
Solution Approach 2:
The patent applies parameter changes by transforming the convergence evaluation from a complex multi-parameter algorithmic process to a simplified single-parameter (gap value) measurement. By changing the evaluation parameter from algorithmic convergence metrics to physical gap distance measurements, the system achieves rapid feedback while maintaining adaptability
Data Source
AI summary
A signal receiving circuit is provided. The signal receiving circuit includes a receiving circuit, an adjustment circuit and a boundary detection circuit. The receiving circuit is configured to receive an input signal. The adjustment circuit is configured to adjust the input signal. The boundary detection circuit is configured to detect a first signal having a first data pattern in the input signal and a second signal having a second data pattern in the input signal. The boundary detection circuit is further configured to detect a gap value between a first signal boundary of the first signal and a second signal boundary of the second signal to reflect a status of the adjustment circuit.