P

Inventor

SASAKI EISAKU

JP33 patents
⚠️ This page may combine multiple inventors who share the name “SASAKI EISAKU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NEC CORP

24 patents
US6127897AOct 3, 2000

Zero-crossing detection type clock recovery circuit operated at symbol rate

NEC CORP20 citations92
US6121828ASep 19, 2000

Demodulator

NEC CORP41 citations92
US5789988AAug 4, 1998

Clock recovery circuit for QAM demodulator

NEC CORP48 citations92
US5408499AApr 18, 1995

Multilevel code for transmission device

NEC CORP32 citations92
US5031133AJul 9, 1991

FIR digital filter for high-speed communications systems

NEC CORP30 citations92
US5570379AOct 29, 1996

Coded modulation apparatus

NEC CORP41 citations91
US6570441B1May 27, 2003

Incoherent demodulator and method of incoherently demodulating an IF signal

NEC CORP17 citations84
US6512473B2Jan 28, 2003

Clock synchronizing circuit

NEC CORP13 citations84
US6411658B1Jun 25, 2002

Demodulation device

NEC CORP19 citations84
US6624691B1Sep 23, 2003

Demodulator for processing digital signal

NEC CORP9 citations74
US4864244ASep 5, 1989

Stepped square-QAM demodulator utilizing all signal points to generate control signals

NEC CORP20 citations74
US4837782AJun 6, 1989

CMI decoder

NEC CORP7 citations74
US9136979B2Sep 15, 2015

Carrier wave reproduction device and carrier wave reproduction method

NEC CORP4 citations73
US11438032B2Sep 6, 2022

OAM reception apparatus, OAM reception method, and OAM transmission system

NEC CORP2 citations70
US5912827AJun 15, 1999

Digital filter with low rolloff factor

NEC CORP6 citations63
US5825828AOct 20, 1998

Method and apparatus for multi-level quadrature amplitude modulation

NEC CORP4 citations63
US11362440B2Jun 14, 2022

Antenna device, wireless transmitter, wireless receiver, and wireless communication system

NEC CORP1 citations60
US11159211B2Oct 26, 2021

Radio transmission device, baseband processing device, radio transmission method, and radio reception device

NEC CORP0 citations60
US12261686B2Mar 25, 2025

Control apparatus, OAM mode-multiplexing transmitting apparatus, OAM mode-multiplexing receiving apparatus, control method, and non-transitory computer readable medium

NEC CORP0 citations52
US9876668B2Jan 23, 2018

Communication apparatus, demodulation apparatus, carrier reproduction apparatus, phase error compensation apparatus, phase error compensation method, and storage medium on which phase error compensation program has been stored

NEC CORP0 citations52
US11290154B2Mar 29, 2022

Control device, delay difference adjustment method, and non-transitory computer readable medium for storing delay difference adjustment program

NEC CORP0 citations49
US10998948B2May 4, 2021

OAM reception apparatus, OAM reception method, and OAM transmission system

NEC CORP0 citations49
US11929865B2Mar 12, 2024

Signal modulation apparatus and signal modulation method

NEC CORP0 citations42
US10763973B2Sep 1, 2020

Phase noise compensation apparatus, demodulation apparatus, communication apparatus, communication system, and phase noise compensation method

NEC CORP0 citations41

SASAKI EISAKU

5 patents

TOYO BOSEKI

2 patents

KAMIYA NORIFUMI

1 patent

NODA SEIICHI

1 patent