Invention Grant
- Patent Title: Predistortion system with targeted spectrum emission for wireless communication
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Application No.: US17542710Application Date: 2021-12-06
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Publication No.: US11757695B2Publication Date: 2023-09-12
- Inventor: Ruikang Yang , Michael Russo , Simon Hamparian
- Applicant: SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC.
- Applicant Address: JP Yokohama
- Assignee: SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC.
- Current Assignee: SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC.
- Current Assignee Address: JP Yokohama
- Agency: Faegre Drinker Biddle & Reath LLP
- Main IPC: H04L25/49
- IPC: H04L25/49 ; H04L27/36 ; H04L27/38 ; H04L27/26

Abstract:
Various embodiments of the present disclosure relate to transmitter systems, methods, and instructions for signal predistortion. The transmitter system includes an intermodulation distortion (IMD) filter module configured to filter a detected feedback signal (Yin) to generate a targeted filtered signal (Yout), a digital pre-distortion (DPD) coefficient estimation module configured to update signal generation coefficients based on comparing an input signal (Sin) with the targeted filtered signal (Yout), and a distortion compensation processing module configured to generate a pre-distorted signal (Uout) based on the input signal (Sin) using the updated signal generation coefficients.
Public/Granted literature
- US20230179467A1 PREDISTORTION SYSTEM WITH TARGETED SPECTRUM EMISSION FOR WIRELESS COMMUNICATION Public/Granted day:2023-06-08
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