Inventor
SANO AKIHIDE
JP19 patents
⚠️ This page may combine multiple inventors who share the name “SANO AKIHIDE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
6 patentsUS8355637B2Jan 15, 2013
Optical OFDM receiver, optical transmission system, subcarrier separation circuit, and subcarrier separation method
NIPPON TELEGRAPH & TELEPHONE23 citations92
US8005374B2Aug 23, 2011
Optical transmission system, optical transmitter for optical transmission system, and optical receiver for optical transmission system
NIPPON TELEGRAPH & TELEPHONE10 citations83
US7734194B2Jun 8, 2010
Optical transmission system, optical transmitter for optical transmission system, and optical receiver for optical transmission system
NIPPON TELEGRAPH & TELEPHONE16 citations83
US9614621B2Apr 4, 2017
Signal generating circuit, optical signal transmitting apparatus, signal receiving circuit, method for establishing optical signal synchronization, and optical signal synchronization system
NIPPON TELEGRAPH & TELEPHONE4 citations73
US9520947B2Dec 13, 2016
Signal generating circuit, optical signal transmitting apparatus, signal receiving circuit, method for establishing optical signal synchronization, and optical signal synchronization system
NIPPON TELEGRAPH & TELEPHONE3 citations73
US10177780B2Jan 8, 2019
Signal generating device
NIPPON TELEGRAPH & TELEPHONE0 citations42
ISHIHARA KOICHI
3 patentsUS8929750B2Jan 6, 2015
Signal generating circuit, optical signal transmitting apparatus, signal receiving circuit, method for establishing optical signal synchronization, and optical signal synchronization system
ISHIHARA KOICHI53 citations97
US8787769B2Jul 22, 2014
Chromatic dispersion value calculating apparatus, optical signal receiving apparatus, optical signal transmitting apparatus, and chromatic dispersion value calculation method
ISHIHARA KOICHI5 citations72
US8488696B2Jul 16, 2013
Receiver device, communication system and receiving method
ISHIHARA KOICHI1 citations51
NAKAGAWA TADAO
3 patentsUS8934782B2Jan 13, 2015
Transmission method, reception method, transmitter apparatus, and receiver device
NAKAGAWA TADAO2 citations60
US8855485B2Oct 7, 2014
Frequency offset estimating method and frequency offset estimating apparatus
NAKAGAWA TADAO2 citations60
US8781029B2Jul 15, 2014
Frequency offset estimation apparatus, reception apparatus, frequency offset estimation method, and reception method
NAKAGAWA TADAO0 citations39