Inventor
ISHIDA RYUJI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “ISHIDA RYUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
10 patentsUS5831878ANov 3, 1998
Exponential and logarithmic conversion circuit
NEC CORP31 citations91
US5367550ANov 22, 1994
Break address detecting circuit
NEC CORP42 citations91
US4945507AJul 31, 1990
Overflow correction circuit
NEC CORP48 citations91
US5506796AApr 9, 1996
Digital signal processing circuit selectively operable in either a normal or a pseudorandom noise generative mode
NEC CORP12 citations72
US5325321AJun 28, 1994
High speed parallel multiplication circuit having a reduced number of gate stages
NEC CORP14 citations72
US5251166AOct 5, 1993
Redundant binary type digital operation unit
NEC CORP15 citations72
US5109415AApr 28, 1992
Audio signal processing system performing balance control in both amplitude and phase of audio signal
NEC CORP18 citations72
US6003141ADec 14, 1999
Single chip processor with externally executed test function
NEC CORP3 citations61
US5089999AFeb 18, 1992
Disc control apparatus
NEC CORP6 citations61
US5223832AJun 29, 1993
Serial data transmission circuit
NEC CORP1 citations51