Inventor

AOYAGI HIROMI

JP34 patents

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

AOYAGI HIROMI

OKI ELECTRIC IND CO LTD

Code-excited linear predictive coder and decoder with conversion filter for converting stochastic and impulsive excitation signals

Code excitation linear predictive (CELP) encoder and decoder and code excitation linear predictive coding method

Packet receiver with the influence of jitter and packet losses reduced before a buffer becomes idle due to data delays and packet receiving method using the same

Vocal tract prediction coefficient coding and decoding circuitry capable of adaptively selecting quantized values and interpolation values

Coding device and decoding device of speech signal, coding method and decoding method

Tone signal detecting method and tone signal detector

Speech coding device for estimating an error of power envelopes of synthetic and input speech signals

Voice packet communications system with communications quality evaluation function

Quality control device for voice packet communications

Voice packet communications system with communications quality evaluation function

Voice communications system

Receiving buffer controlling method and voice packet decoder

Speech band extension device

Voice packet communications system with communications quality evaluation function

Apparatus and method for concealing erased periodic signal data

Telephone communication system

Real-time communications system of high communications quality and media terminal apparatus

Voice communications apparatus

Voice communication apparatus

Voice communications apparatus

Codebook preliminary selection device and method, and storage medium storing codebook preliminary selection program

Circuitry for and a method of detecting tonal signals with the processing capacity distributed with weight to frequency and time domains

Telephone communications apparatus

AOYAGI HIROMI

Apparatus for estimating sound source direction from correlation between spatial transfer functions of sound signals on separate channels

Sound image localization processor, method, and program

Echo canceller

Receiver apparatus for absorbing clock difference between transmitting and receiving sides and a method therefor

Voice quality measurement device, method and computer readable medium

Voice band expander and expansion method, and voice communication apparatus

Apparatus for efficiently mixing narrowband and wideband voice data and a method therefor

Speech processing peripheral device and IP telephone system

CANON KK

Discharge generating apparatus and discharge generating method

USUBA SHINJI

Voice communications system

TASHIRO ATSUSHI

Bandwidth extension apparatus for automatically adjusting the bandwidth of inputted signal and a method therefor