The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2026
Filed:
Apr. 17, 2024
Realtek Semiconductor Corporation, Hsinchu, TW;
Zhen Cheng Zhang, Hsinchu, TW;
Realtek Semiconductor Corporation, Hsinchu, TW;
Abstract
A filter includes a first low-pass filter and a second low-pass filter. The first low-pass filter is located at a first channel, and includes a first resistor array coupled with a complex-signal input terminal. The second low-pass filter is located at a second channel, and includes a second resistor array coupled with the complex-signal input terminal. The complex-signal input terminal is configured to provide complex signals to the first channel and the second channel. The filter further includes a third resistor array and a fourth resistor array. The third resistor array is cross-coupled between the first low-pass filter and the second low-pass filter. The fourth resistor array is coupled between the complex-signal input terminal and the third resistor array. The first resistor array, the second resistor array and the fourth resistor array include variable resistors.