FM Signal Conversion With Adaptive Center Frequency Control
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Solution Overview
Problem
Existing optical transmission apparatuses face signal degradation due to a fixed center frequency that does not adapt to varying input signal frequencies, leading to reduced transmission distance and quality, particularly when high-frequency input signals are involved.
Innovation Solution
A signal converting apparatus with a conversion unit, measurement unit, and control unit dynamically adjusts the center frequency based on measured carrier levels and maximum frequency of input signals to optimize FM batch conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed center frequency is used for FM batch conversion, then the apparatus structure is simple and easy to operate, but signal quality degrades when high-frequency input signals are transmitted
Solution Approach 1:
The patent applies the dynamics principle by transitioning from a fixed center frequency to a variable center frequency that automatically adapts to the input signal's maximum frequency. The control unit dynamically adjusts the center frequency based on measurement unit feedback, allowing the system to maintain optimal signal quality across different input conditions without manual intervention.
Solution Approach 2:
The patent implements feedback by incorporating a measurement unit that continuously monitors the input signal's maximum frequency and feeds this information back to the control unit. The control unit then uses this feedback to calculate and adjust the appropriate center frequency, creating a closed-loop system that maintains signal quality while operating automatically.
2Reliability
If the center frequency is manually adjustable, then signal quality can be maintained for different input signals, but device complexity increases and operation becomes more difficult
Solution Approach 1:
The patent applies self-service by enabling the system to automatically determine and adjust its own center frequency without external manual intervention. The measurement unit self-monitors the input signal characteristics, and the control unit self-calculates the appropriate center frequency based on predetermined formulas, making the system autonomous and reducing both complexity and operational difficulty.
3Adaptability or versatility
If the center frequency is manually adjustable, then different input signals can be accommodated, but ease of operation decreases due to manual setting requirements
Solution Approach 1:
The patent uses feedback to achieve adaptability without manual operation. The measurement unit continuously monitors the input signal's maximum frequency and provides feedback to the control unit, which automatically calculates and adjusts the center frequency accordingly. This closed-loop feedback mechanism enables the system to adapt to different input signals while maintaining ease of operation through automation.
Solution Approach 2:
The patent applies dynamics by implementing a flexible, variable center frequency that automatically adapts to the input signal's maximum frequency. This dynamic adjustment mechanism allows the system to accommodate different input signals (enhancing adaptability) while requiring no manual intervention (maintaining ease of operation), as the system self-adjusts based on real-time signal characteristics.
Data Source
AI summary
A signal converting apparatus includes a conversion unit, a measurement unit, and a control unit. The conversion unit performs FM batch conversion on an input signal containing a plurality of carrier signals, to generate an FM signal. The measurement unit measures the carrier levels of the plurality of carrier signals contained in the input signal, and the maximum frequency of the input signal. The control unit calculates the frequency deviation amount of the entire input signal, on the basis of the measured carrier levels of the respective carrier signals. Using the calculated frequency deviation amount and the measured maximum frequency, the control unit calculates a center frequency for the FM signal, and controls the conversion unit so that the center frequency of the FM signal to be generated by the FM batch conversion becomes equal to the calculated center frequency.