Inventor
KANEMASA AKIRA
JP10 patents
⚠️ This page may combine multiple inventors who share the name “KANEMASA AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
8 patentsUS4730343AMar 8, 1988
Decision feedback equalizer with a pattern detector
NEC CORP76 citations96
US4621172ANov 4, 1986
Fast convergence method and system for echo canceller
NEC CORP54 citations94
US4707824ANov 17, 1987
Method and apparatus for cancelling echo
NEC CORP25 citations92
US4605826AAug 12, 1986
Echo canceler with cascaded filter structure
NEC CORP55 citations92
US4933934AJun 12, 1990
Time division multiplexing method with channel compression and a device therefor
NEC CORP22 citations79
US4769808ASep 6, 1988
Method of cancelling echoes in full-duplex data transmission system
NEC CORP15 citations73
US4972467ANov 20, 1990
Echo canceller
NEC CORP14 citations72
US4965823AOct 23, 1990
Echo canceller
NEC CORP12 citations72
NIPPON ELECTRIC CO
2 patentsUS4215415AJul 29, 1980
Recursive digital filter comprising a circuit responsive to first sum and feedback sign bits and second sum sign and integer bits for detecting overflow in the second sum
NIPPON ELECTRIC CO22 citations79
US4407018ASep 27, 1983
Digital signal processor suited for LSI fabrication
NIPPON ELECTRIC CO16 citations73