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:
Jul. 21, 2026
Filed:
Jul. 16, 2024
Realtek Semiconductor Corp., HsinChu, TW;
Yuan-Shuo Chang, HsinChu, TW;
Shin-Lin Cheng, HsinChu, TW;
Realtek Semiconductor Corp., HsinChu, TW;
Abstract
A digital pre-distortion circuit includes a memoryless non-linear operating circuit, an intermodulation shaping filter circuit, and a signal combination circuit. The memoryless non-linear operating circuit performs a memoryless non-linear operation upon a transmission signal to generate a first signal, wherein the first signal is an output simulation signal of a radio frequency (RF) power amplifier under the memoryless effect, and the first signal includes a signal component corresponding to the transmission signal and a signal component corresponding to an intermodulation signal of the transmission signal. The intermodulation shaping filter circuit filters the first signal to generate a second signal, wherein the second signal simulates an intermodulation signal generated by the RF power amplifier in response to the transmission signal under a memory effect. The signal combination circuit combines the transmission signal and the second signal to generate a pre-distortion signal.
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