Patent ID: 11929189
Assignee: YUNAN HAN
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. The filtering cable according to claim 7, wherein if the value of N is 1, and the preset filter circuit comprises a low-pass filter circuit;
the etching pattern comprises: a plurality of third patterns; the third patterns comprise: a second hollow line segment in the axial direction of the filtering cable; the second hollow line segment comprises a third hollow line segment, a fourth hollow line segment and a fifth hollow line segment which are symmetrical at both ends of the third hollow line segment and in which the axis of symmetry is provided along the diameter of the filtering cable;
a sixth hollow line segment that is spaced side by side with the second hollow line segment; an area on the sixth hollow line segment corresponding to the third hollow line segment has a third non-hollow area, the area on the sixth hollow line segment corresponding to the fourth hollow line segment has a first narrowed hollow area communicated with the fourth hollow line segment, and the area on the sixth hollow line segment corresponding to the fifth hollow line segment has a second narrowed hollow area communicated with the fifth hollow line segment;
alternatively, the etching pattern comprises: a plurality of fourth patterns; the fourth patterns comprise: two sub-patterns which are symmetrically spaced from each other and in which the axis of symmetry is provided in the radial direction of the filtering cable; and the sub-patterns of the fourth pattern comprise a seventh hollow line segment and an eighth hollow line segment provided side by side in the radial direction of the filtering cable; both ends of the seventh hollow line segment are provided with a first single-ring hollow pattern, respectively; the middle of the side of the first single-ring hollow pattern away from the seventh hollow line segment is provided with a non-hollow area; both ends of the eighth hollow line segment are provided with a second single-ring hollow pattern, respectively; the middle of the side of the second single-ring hollow pattern away from the eighth hollow line segment is provided with a non-hollow area; the area surrounded by the second single-ring hollow pattern is larger than the area surrounded by the first single-ring hollow pattern;
alternatively, the etching pattern comprises: a plurality of fifth patterns; the fifth patterns comprise: a ninth hollow line segment and a tenth hollow line segment that are provided crosswise; the ninth hollow line segment is provided in the axial direction of the filtering cable and is provided with a first widened hollow area at both ends; the tenth hollow line segment is provided in the radial direction of the filtering cable and is provided with a second widened hollow area at both ends; an area surrounded by the second widened hollow area is larger than the area surrounded by the first widened hollow area;
alternatively, the etching pattern comprises: a plurality of sixth patterns; the sixth patterns comprise: a first U-shaped hollow pattern, a second U-shaped hollow pattern, and a third U-shaped hollow pattern that are sequentially provided; the openings of the first U-shaped hollow pattern, the second U-shaped hollow pattern and the third U-shaped hollow pattern are provided in the radial direction of the filtering cable; wherein the opening direction of the second U-shaped hollow pattern is opposite to the opening direction of the first U-shaped hollow pattern and the third U-shaped hollow pattern; one end of the second U-shaped hollow pattern is communicated with one end of the first U-shaped hollow pattern, and the other end thereof is communicated with one end of the third U-shaped hollow pattern;
alternatively, the etching pattern comprises: a plurality of seventh patterns; the seventh patterns comprise: an eleventh hollow line segment in the radial direction of the filtering cable; both ends of the eleventh hollow line segment are provided with a third widened hollow area, respectively.