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. 30, 2023
Filed:
Jul. 07, 2022
Anritsu Corporation, Kanagawa, JP;
Atsuki Morita, Kanagawa, JP;
Mark Joseph Aquino Isip, Kanagawa, JP;
ANRITSU CORPORATION, Kanagawa, JP;
Abstract
Included are a demodulation unitthat demodulates a received OFDM modulation signal to acquire a demodulated constellation signal, an ideal constellation signal generation unitthat generates an ideal constellation signal from the demodulated constellation signal, a data extraction unitthat extracts signal data included in some symbol sections including a known reference symbol, among all symbol sections, from the demodulated constellation signal and the ideal constellation signal, a phase error calculation unitthat calculates the phase error of the demodulated constellation signal for the ideal constellation signal, with respect to the extracted signal data, a phase error characteristics estimation unitthat estimates the frequency characteristics of the phase error, and a phase error correction unitthat corrects the phase error of the demodulated constellation signal, based on the frequency characteristics of the phase error.