Inventor
MARUTA YASUSHI
JP42 patents
⚠️ This page may combine multiple inventors who share the name “MARUTA YASUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
32 patentsUS6205166B1Mar 20, 2001
CDMA receiver with antenna array adaptively controlled with combined errors of despread multipath components
NEC CORP75 citations96
US7031368B1Apr 18, 2006
Adaptive transmitter/receiver
NEC CORP36 citations92
US6792033B1Sep 14, 2004
Array antenna reception apparatus
NEC CORP41 citations92
US6665286B1Dec 16, 2003
Adaptive receiving device removing interference from users and multi-paths by antenna directivity control
NEC CORP24 citations92
US6448939B2Sep 10, 2002
Array antenna receiving apparatus
NEC CORP35 citations92
US6222498B1Apr 24, 2001
CDMA multiuser receiver featuring a combination of array antenna and multiuser cancelers
NEC CORP43 citations92
US10039099B2Jul 31, 2018
Wireless communication system and wireless communication method
NEC CORP7 citations84
US9584288B2Feb 28, 2017
Communication channel quality estimating method, wireless communications system, base station, and program
NEC CORP2 citations73
US9929789B2Mar 27, 2018
Method and system for MU-MIMO communication
NEC CORP2 citations72
US9859964B2Jan 2, 2018
Computing PMIs, particularly in wireless communications systems having a three-dimensional communications channel
NEC CORP2 citations72
US9497013B2Nov 15, 2016
Radio communication system, base station, and communication method
NEC CORP2 citations63
US7924954B2Apr 12, 2011
Frequency correction
NEC CORP2 citations63
US7274951B2Sep 25, 2007
Multi-beam antenna transmitter/receiver and transmitting/receiving method and transmission beam selection method
NEC CORP5 citations63
US6218988B1Apr 17, 2001
Array antenna transmitter with a high transmission gain proportional to the number of antenna elements
NEC CORP5 citations63
US12250698B2Mar 11, 2025
Communication system
NEC CORP0 citations62
US11974295B2Apr 30, 2024
Communication system
NEC CORP0 citations62
US11337204B2May 17, 2022
Communication system
NEC CORP0 citations62
US10205493B2Feb 12, 2019
Method and system for MU-MIMO communication
NEC CORP1 citations61
US11405910B2Aug 2, 2022
Base station, method, program and recording medium
NEC CORP0 citations58
US12015568B2Jun 18, 2024
Base station, method, program, and recording medium
NEC CORP0 citations52
US11611385B2Mar 21, 2023
Base station, system, method, and non-transitory computer readable medium
NEC CORP0 citations52
US10716103B2Jul 14, 2020
Communication system
NEC CORP0 citations52
US10277304B2Apr 30, 2019
Relay communication system
NEC CORP0 citations52
US7286800B2Oct 23, 2007
Multi-beam antenna reception device and multi-beam reception method
NEC CORP1 citations52
US9473225B2Oct 18, 2016
Method for improving transmission capacity in a DL MU-MIMO communications system
NEC CORP1 citations48
US10477571B2Nov 12, 2019
Communication terminal, base station, monitoring method, transmission method, and non-transitory computer-readable medium
NEC CORP0 citations42
US9622194B2Apr 11, 2017
Communication system
NEC CORP0 citations41
US10250311B2Apr 2, 2019
Method and system for MIMO communication
NEC CORP0 citations40
US10063300B2Aug 28, 2018
Computing PMIs, particularly in wireless communications systems having three-dimensional communications channels, using a reference antenna or a reference antenna subset
NEC CORP0 citations40
US9825676B2Nov 21, 2017
Generating precoders for joint transmission from multiple transmission points to multiple user equipments in a downlink coordinated multipoint transmission/reception communications system
NEC CORP0 citations40
US9246564B2Jan 26, 2016
Generating precoders for use in optimising transmission capacity between an eNodeBb and UE in a DL MU-MIMO communications system
NEC CORP0 citations40
US7792151B2Sep 7, 2010
CDMA receiving apparatus and method
NEC CORP0 citations39
MARUTA YASUSHI
5 patentsUS8718206B2May 6, 2014
Frequency correction circuit, frequency correction method and wireless communication equipment using them
MARUTA YASUSHI2 citations61
US9124479B2Sep 1, 2015
Wireless base station receiving device, and signal demodulation method and program used therein
MARUTA YASUSHI0 citations50
US8301172B2Oct 30, 2012
Mobile communication system and method for estimating moving speed of mobile terminal
MARUTA YASUSHI1 citations50
US9253695B2Feb 2, 2016
Mobile communication system and relay node control method, relay node management device and control method thereof, and non-transitory computer readable medium storing control program
MARUTA YASUSHI0 citations40
US9007985B2Apr 14, 2015
Mobile communication system, relay station, and control method and program for relay station
MARUTA YASUSHI0 citations40