Touch Spectrum Tuning for Peak Frequency Radio Reception
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Solution Overview
Problem
Existing radio receivers require cumbersome tuning knobs for setting reception frequencies, which can be inefficient and difficult to use, especially when trying to identify receivable voice call signals through visual signal intensity on a spectrum analyzer.
Innovation Solution
A radio receiver system incorporating a spectrum analyzer to display reception signal intensity, a touch sensor for user input, a smoothing unit to process signal data, a peak frequency detection unit to identify optimal frequencies, and a reception frequency determination unit to automatically set the reception frequency based on user input, allowing for easier and more precise frequency setting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a tuning knob is used to adjust reception frequency, then the device structure remains simple, but the ease of operation deteriorates and frequency setting becomes cumbersome
Solution Approach 1:
The patent replaces the mechanical tuning knob system with a touch sensor interface that detects user input positions on the spectrum analyzer display. This substitution eliminates the need for mechanical rotation components while enabling more precise and intuitive frequency selection through direct touch interaction with the visual spectrum display.
2Ease of operation
If a spectrum analyzer is added to display signal intensity, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
The spectrum analyzer display serves multiple functions: it visualizes signal intensity across frequencies, indicates the current reception frequency position, and acts as the interface for user frequency selection through touch input. By making the display multi-functional, the patent reduces the need for separate control components, thereby limiting the increase in device complexity while maintaining improved ease of operation.
3Measurement precision
If signal intensity data is smoothed before peak detection, then the measurement precision improves, but the processing time increases
Solution Approach 1:
The patent applies smoothing processing selectively and适度 (moderately) to the signal intensity data before peak frequency detection. Rather than over-smoothing which would excessive increase processing time, the patent uses just enough smoothing to reduce noise and improve peak detection precision, achieving an optimal balance between measurement accuracy and processing efficiency.
Data Source
AI summary
A spectrum analyzer is configured to display, on a display, reception signal intensity of each of multiple frequencies. A smoothing unit is configured to smooth signal intensity data of each of the multiple frequencies to produce smoothed data. A peak frequency detection unit is configured to detect, as a peak frequency, a frequency at a position indicating a maximum value in the smoothed data closest to a contact position that a touch sensor detects. A reception frequency determination unit is configured to determine a reception frequency of a radio wave that a receiver for a voice call receives based on the peak frequency.