Inventor

OZAWA KAZUNORI

JP155 patents

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

OZAWA KAZUNORI

NEC CORP

Method and apparatus of postfiltering using a first spectrum parameter of an encoded sound signal and a second spectrum parameter of a lesser degree than the first spectrum parameter

Speech coder

Speech coding/decoding method having an excitation signal

Speech analysis and synthesis system

Speech coder

Speech coder including an excitation quantizer for retrieving positions of amplitude pulses using spectral parameters and different gains for groups of the pulses

Speech coding apparatus having amplitude information set to correspond with position information

Speech coders with speech-mode dependent pitch lag code allocation patterns minimizing pitch predictive distortion

Multistage low bit-rate CELP speech coder with switching code books depending on degree of pitch periodicity

Speech parameter encoding method capable of transmitting a spectrum parameter at a reduced number of bits

Active matrix type liquid crystal display with multi-media oriented drivers and driving method for same

Speech encoding method and speech encoding system

Signal coding system

Signal coder for wide-band signals

Speech decoder for decoding a speech signal using a bad frame masking unit for voiced frame and a bad frame masking unit for unvoiced frame

Method and apparatus for coding signal while adaptively allocating number of pulses

Coding of a speech or music signal with quantization of harmonics components specifically and then residue components

Comb filter speech coding with preselected excitation code vectors

Speech decoder capable of reproducing well background noise

Speech decoder

Voice cover and a method for searching codebooks

Speech parameter coding method and appparatus

Speech decoder for high quality reproduced speech through interpolation

Communication system capable of improving a speech quality by a pair of pulse producing units

Communication system capable of improving a speech quality by classifying speech signals

Speech and music signal coder/decoder

Speech coding method and system

Low bit-rate pattern encoding and decoding with a reduced number of excitation pulses

Low bit-rate pattern encoding and decoding capable of reducing an information transmission rate

Method and apparatus for encoding voice signals

Moving-picture compression encoding method, apparatus and program

Speech encoder with features extracted from current and previous frames

Content distribution method, encoding method, reception/reproduction method and apparatus, and program

Speech decoder capable of decoding background noise signal with high quality

Speech coding apparatus and speech decoding apparatus

Moving picture data code conversion/transmission method and device, code conversion/reception method and device

SONY CORP

Charging method, charging equipment, and integrated circuit

Audio transmission, recording and reproducing system

Secondary battery pack

Rechargeable battery apparatus

Telephone apparatus used for computer network telephone system

Battery unit and battery energy billing method

Telephone apparatus used for computer network telephone system

System for audio communication between two terminals connected to the internet network

NIPPON ELECTRIC CO

ADPCM System for speech or like signals

NISSAN MOTOR

Secondary cell module and method of its production

DENSO CORP

Backward drive control system for motorcycle

SPEEDFAM COMPANY LTD

Surface processing machine for hard disks and the like

UPJOHN CO

Tropolone derivatives and pharmaceutical composition thereof for preventing and treating ischemic diseases

OZAWA KAZUNORI

Content distribution system, conversion device, and content distribution method for use therein