Inventor

NISHITANI TAKAO

19 patents

⚠️ This page may combine multiple inventors who share the name “NISHITANI TAKAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NISHITANI TAKAO

NEC CORP

Real time processor for video signals

Adaptive transform coding by selecting optimum block lengths according to variatons between successive blocks

Signal processor for rapidly calculating a predetermined calculation a plurality of times to typically carrying out FFT or inverse FFT

Processing circuit capable of raising throughput of accumulation

Double precision multiplier

Speech signal detector having adaptive threshold values

Processing circuit capable of raising throughput of accumulation

Speech/voiceband data discriminator

System and method for ADPCM transmission of speech or like signals

Arithmetic circuit capable of executing floating point operation and fixed point operation

Adaptive differential pulse code modulation decoding circuit

Timing signal generator for a video signal processor

NIPPON ELECTRIC CO

Arithmetic circuit with overflow detection capability

2M-point discrete Fourier transform calculator comprising a pre-processor for twice performing extraction of conjugate symmetric and/or antisymmetric components

Method and circuit for carrying out forward and inverse quantization by varying a reference step size

Adaptive predictive code conversion method of interrupting prediction and an encoder and a decoder for the method

Digital pushbutton signalling receiver

Sampled data processing system having memory with areas alternately dedicated to data I/O and data processing

Two-term vector multiplier