P

Inventor

FURUYA YUKITSUNA

JP32 patents
⚠️ This page may combine multiple inventors who share the name “FURUYA YUKITSUNA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NEC CORP

25 patents
US5577087ANov 19, 1996

Variable modulation communication method and system

NEC CORP321 citations99
US5420863AMay 30, 1995

Mobile communication system with cell-site switching for intra-cell handoff

NEC CORP172 citations99
US7099268B2Aug 29, 2006

Orthogonal frequency division multiplex modem circuit

NEC CORP69 citations98
US5745858AApr 28, 1998

Base station transmitter/receiver capable of varying composite directivity of antennas

NEC CORP99 citations98
US5809019ASep 15, 1998

Transmisson diversity system

NEC CORP85 citations96
US5319795AJun 7, 1994

Cellular mobile communications system using frequencies commonly shared by neighboring cells for handoff operations

NEC CORP85 citations96
US5157661AOct 20, 1992

Handoff method for cellular digital mobile communication system and mobile station

NEC CORP60 citations96
US4747101AMay 24, 1988

Method of determining optimal transmission channel in multi-station communications system

NEC CORP71 citations96
US4888767ADec 19, 1989

Repeat request signal transmission method for multi-station packet communication

NEC CORP110 citations95
US5444721AAug 22, 1995

Maximum likelihood sequence estimation apparatus

NEC CORP24 citations93
US5303226AApr 12, 1994

Reception of TDMA digital data signal with compensation for channel variations

NEC CORP35 citations93
US5272726ADec 21, 1993

Blind type sequence estimator for use in communications system

NEC CORP22 citations93
US6363100B1Mar 26, 2002

Radio data communication system using spread spectrum scheme

NEC CORP26 citations92
US5363411ANov 8, 1994

Low power consumption receiver with adaptive equalizer

NEC CORP32 citations92
US4764920AAug 16, 1988

Packet transmission system

NEC CORP41 citations92
US4742568AMay 3, 1988

Receiver for antenna switching diversity systems

NEC CORP31 citations92
US5748668AMay 5, 1998

Spread spectrum method for transmitting an information signal as a radio signal at a high speed

NEC CORP17 citations90
US5625639AApr 29, 1997

Spread spectrum method for transmitting an information signal as a radio signal at a high speed

NEC CORP23 citations90
USRE36309ESep 21, 1999

Handoff method for cellular digital mobile communication system and mobile station

NEC CORP5 citations74
US5590404ADec 31, 1996

Base station transmission-reception apparatus for cellular system

NEC CORP15 citations74
US5442803AAug 15, 1995

Half duplex communication system having quick channel assignments

NEC CORP7 citations74
US5272447ADec 21, 1993

Demodulator and demodulation method for a digital phase modulated signal

NEC CORP7 citations74
US5101503AMar 31, 1992

Method of connecting channels of decentralized radio systems

NEC CORP14 citations74
US7843803B2Nov 30, 2010

Orthogonal frequency division multiplex modem circuit

NEC CORP0 citations52
US7395486B2Jul 1, 2008

Image communication system using a hierarchical code comprised of a plurality of layers

NEC CORP0 citations42

NIPPON ELECTRIC CO

3 patents

YASUDA YUTAKA

1 patent

KOKUSAI DENSHIN DENWA CO LTD

1 patent

ICHIHARA MASAKI

1 patent

FURUYA YUKITSUNA

1 patent