Inventor
UMEHIRA MASAHIRO
JP9 patents
⚠️ This page may combine multiple inventors who share the name “UMEHIRA MASAHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
7 patentsUS7242720B2Jul 10, 2007
OFDM signal communication system, OFDM signal transmitting device and OFDM signal receiving device
NIPPON TELEGRAPH & TELEPHONE125 citations97
US6512747B1Jan 28, 2003
ATM transmission system
NIPPON TELEGRAPH & TELEPHONE79 citations93
US6330699B1Dec 11, 2001
Error compensating method and apparatus and medium storing an error compensating program
NIPPON TELEGRAPH & TELEPHONE27 citations92
US6163861ADec 19, 2000
Error compensating method and apparatus and medium storing an error compensation program
NIPPON TELEGRAPH & TELEPHONE44 citations92
US5862175AJan 19, 1999
Digital transmission apparatus using differential coding and forward error correction
NIPPON TELEGRAPH & TELEPHONE22 citations92
US7075912B2Jul 11, 2006
Wireless communication system using access points that can be freely set up by users
NIPPON TELEGRAPH & TELEPHONE42 citations89
US6188697B1Feb 13, 2001
ATM cell transport system for wireless communications
NIPPON TELEGRAPH & TELEPHONE23 citations87