Inventor
ONO SHIGERU
JP31 patents
⚠️ This page may combine multiple inventors who share the name “ONO SHIGERU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
18 patentsUS5999560ADec 7, 1999
Rake reception method for a spread spectrum signal
NEC CORP62 citations96
US6996156B1Feb 7, 2006
CDMA receiver capable of estimation of frequency offset in high precision
NEC CORP43 citations92
US6272167B1Aug 7, 2001
Spread spectrum communication system
NEC CORP31 citations92
US6157687ADec 5, 2000
Rake receiving system with fingers selectively participating rake synthesis
NEC CORP44 citations92
US5859914AJan 12, 1999
Acoustic echo canceler
NEC CORP39 citations92
US5583888ADec 10, 1996
Vector quantization of a time sequential signal by quantizing an error between subframe and interpolated feature vectors
NEC CORP20 citations92
US4724535AFeb 9, 1988
Low bit-rate pattern coding with recursive orthogonal decision of parameters
NEC CORP26 citations92
US4669120AMay 26, 1987
Low bit-rate speech coding with decision of a location of each exciting pulse of a train concurrently with optimum amplitudes of pulses
NEC CORP36 citations92
US6061778AMay 9, 2000
Digital signal processor for detecting out-of-sync and jitter from two clock signals and controlling the interpolation based on deviation and jitter amount
NEC CORP12 citations74
US5636322AJun 3, 1997
Vector quantizer
NEC CORP9 citations74
US4964169AOct 16, 1990
Method and apparatus for speech coding
NEC CORP14 citations74
US6246730B1Jun 12, 2001
Method and arrangement for differentially detecting an MPSK signal using a plurality of past symbol data
NEC CORP4 citations63
US5978758ANov 2, 1999
Vector quantizer with first quantization using input and base vectors and second quantization using input vector and first quantization output
NEC CORP6 citations63
US6891908B2May 10, 2005
Portable radio system and portable radio equipment to be used in the same and frequency error prediction method used therefor
NEC CORP6 citations54
US7606545B2Oct 20, 2009
Portable radio terminal and AFC control method
NEC CORP0 citations52
US7305219B2Dec 4, 2007
Portable radio terminal and AFC control method
NEC CORP0 citations52
US7043216B2May 9, 2006
Portable radio terminal and AFC control method
NEC CORP0 citations52
US5966413AOct 12, 1999
Digital demodulator and method of operation
NEC CORP0 citations42
OKI ELECTRIC IND CO LTD
4 patentsUS5907586AMay 25, 1999
Method and device for signal decision, receiver and channel condition estimating method for a coding communication system
OKI ELECTRIC IND CO LTD116 citations98
US5946361AAug 31, 1999
Viterbi decoding method and circuit with accelerated back-tracing and efficient path metric calculation
OKI ELECTRIC IND CO LTD58 citations96
US5787127AJul 28, 1998
Viterbi decoding method and apparatus with balance among memory and processing requirements
OKI ELECTRIC IND CO LTD31 citations92
US6302576B1Oct 16, 2001
Soft decision estimation unit and maximum-likelihood sequence estimation unit
OKI ELECTRIC IND CO LTD25 citations91