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:
Oct. 28, 2025
Filed:
May. 25, 2021
Nec Corporation, Tokyo, JP;
Takuji Mochizuki, Tokyo, JP;
Kazuhiro Ishida, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A signal processing device according to an example embodiment includes: a distortion compensation circuit configured to execute distortion compensation processing of compensating for nonlinear distortion on an input signal, and output a signal subjected to the distortion compensation processing; an amplifier configured to amplify the signal output from the distortion compensation circuit and output the amplified signal as a communication signal; and a signal output circuit configured to output an adjustment signal for adjusting the distortion compensation processing to the distortion compensation circuit as the input signal at a timing at which the communication signal is not output, the adjustment signal having a frequency band that covers a frequency band of the communication signal.