Inventor
KAWABE MANABU
JP39 patents
⚠️ This page may combine multiple inventors who share the name “KAWABE MANABU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OKI ELECTRIC IND CO LTD
15 patentsUS6259683B1Jul 10, 2001
Mobile communication system for accomplishing handover with phase difference of frame sync signals corrected
OKI ELECTRIC IND CO LTD163 citations98
US4701923AOct 20, 1987
Adaptively coded data communication system with half duplex and/or full duplex function
OKI ELECTRIC IND CO LTD153 citations98
US5715521AFeb 3, 1998
Method of controlling synchronization signal power in a communication system
OKI ELECTRIC IND CO LTD68 citations96
US5442662AAug 15, 1995
Code-division multiple-access communication system providing enhanced capacity within limited bandwidth
OKI ELECTRIC IND CO LTD144 citations96
US4720829AJan 19, 1988
Error control encoding system
OKI ELECTRIC IND CO LTD93 citations96
US5463660AOct 31, 1995
Block-spreading code-division multiple-access demodulator with improved interference cancellation
OKI ELECTRIC IND CO LTD57 citations95
US5920591AJul 6, 1999
Spreading code generator and CDMA communication system
OKI ELECTRIC IND CO LTD41 citations92
US5631922AMay 20, 1997
Spread code generation device for spread spectrum communication
OKI ELECTRIC IND CO LTD24 citations92
US5394434AFeb 28, 1995
Code-division multiple-access demodulator with improved interference cancelation
OKI ELECTRIC IND CO LTD29 citations92
US5239623AAug 24, 1993
Three-dimensional image generator
OKI ELECTRIC IND CO LTD44 citations92
US4899148AFeb 6, 1990
Data compression method
OKI ELECTRIC IND CO LTD46 citations92
US6975607B2Dec 13, 2005
Mobile communication system for accomplishing handover with phase difference of frame sync signals corrected
OKI ELECTRIC IND CO LTD14 citations84
US6137825AOct 24, 2000
Communication system, transmitter and receiver
OKI ELECTRIC IND CO LTD14 citations73
US5850394ADec 15, 1998
CDMA communications system using multiplexed signaling data lines
OKI ELECTRIC IND CO LTD10 citations73
US5694429ADec 2, 1997
Mobile radio communication system
OKI ELECTRIC IND CO LTD10 citations73
HITACHI LTD
5 patentsUS6377613B1Apr 23, 2002
Communication apparatus for code division multiple accessing mobile communications system
HITACHI LTD63 citations96
US7346330B2Mar 18, 2008
Software-defined radio apparatus
HITACHI LTD15 citations84
US7088696B1Aug 8, 2006
Communication apparatus
HITACHI LTD8 citations74
US7756489B2Jul 13, 2010
Software defined radio and library configuration therefor
HITACHI LTD2 citations63
US7756505B2Jul 13, 2010
Semiconductor integrated circuit and a software radio device
HITACHI LTD4 citations61
RENESAS TECH CORP
5 patentsUS7426377B2Sep 16, 2008
Sigma delta (ΣΔ) transmitter circuits and transceiver using the same
RENESAS TECH CORP16 citations84
US7346325B2Mar 18, 2008
Receiver, receiving method and portable wireless apparatus
RENESAS TECH CORP11 citations83
US7352250B2Apr 1, 2008
Phase locked loop circuits, offset PLL transmitters, radio frequency integrated circuits and mobile phone systems
RENESAS TECH CORP6 citations73
US7301405B2Nov 27, 2007
Phase locked loop circuit
RENESAS TECH CORP5 citations63
US7683723B2Mar 23, 2010
Phase locked loop circuits, offset PLL transmitters, radio frequency integrated circuits and mobile phone systems
RENESAS TECH CORP2 citations62