Fan-Shaped Frequency Scale for Precise Wireless Tuning
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Solution Overview
Problem
Existing frequency display methods for wireless devices require extensive pointer movement and are visually burdensome due to non-uniform line-of-sight distances between frequency display regions and analog frequency scales, especially when trying to set frequencies with high precision within limited display areas.
Innovation Solution
A wireless device and method that employs a fan-shaped frequency scale centered on the set frequency, with scale marks displayed at regular intervals and partial frequency display by omitting upper and lower digits, allowing for intuitive recognition of frequency bands with reduced pointer movement and improved visual comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an analog frequency scale is used to display frequency with a pointer, then frequency band recognition is improved, but line-of-sight movement distance increases and visual burden increases
Solution Approach 1:
The patent transforms the traditional linear frequency scale into a fan-shaped (radial) scale that rotates around a center point. This dimensional change from linear to radial arrangement allows the scale to wrap around the display area, reducing the line-of-sight movement distance while maintaining comprehensive frequency band visibility. The pointer rotates within a compact angular space rather than traversing a long linear distance.
Solution Approach 2:
The frequency scale is designed with a curved, fan-shaped geometry rather than a straight line. This curvature allows the scale to utilize the circular display space more efficiently, bringing frequency markers closer to the user's line of sight and reducing eye movement while maintaining the analog visualization benefits for frequency band recognition.
2Measurement precision
If the frequency range is expanded to allow detailed frequency setting, then frequency setting precision is improved, but pointer moving distance increases
Solution Approach 1:
The patent implements a dynamic fan-shaped scale that can rotate and adjust its display range. As the frequency setting changes, the scale rotates to keep the relevant frequency range centered in the display area. This dynamic adjustment maintains high frequency setting precision while keeping the pointer's movement distance limited to a compact rotational range rather than requiring a long linear travel distance.
Solution Approach 2:
By transitioning from a linear scale to a radial fan-shaped scale, the patent compresses the display space into a two-dimensional angular arrangement. This allows a wide frequency range to be displayed in a compact circular area, enabling detailed frequency setting without proportionally increasing the pointer's physical movement distance.
3Device complexity
If a linear frequency scale is used, then frequency display is simple, but display area requirements increase and line-of-sight movement increases
Solution Approach 1:
The patent rearranges the frequency scale from a linear one-dimensional layout to a fan-shaped radial layout that utilizes two-dimensional angular space. This dimensional transformation allows the same frequency information to be displayed in a compact circular area, significantly reducing the overall display area requirement while maintaining visual simplicity through the intuitive radial arrangement.
Data Source
AI summary
The wireless device includes: a frequency setting unit which sets a frequency; a first frequency display unit which displays the set frequency as a set-up frequency in numbers; and a second frequency display unit which draws at least one predetermined frequency range, centering the set-up frequency, on a scale having a fan shape by interlocking the at least one predetermined frequency range with the setting of the frequency performed by the frequency setting unit. Here, the scale is rotated about a virtual center point having the fan shape of the scale, and a center of the scale is shown to always correspond to the set-up frequency.