This inventor holds 5 USPTO granted patents and 1 published patent application, plus 1 CIPO patent. Top assignees: Nec Corporation, Juniper Networks, Inc.. Active years: 1999-2010.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1999-2010
Title: Yoshiaki Nozawa: Innovator in Image Transmission and Speech Quality Enhancement
Introduction
Yoshiaki Nozawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of image transmission and speech quality enhancement, holding a total of five patents. His innovative work has had a lasting impact on communication technologies.
Latest Patents
One of his latest patents is a statistic multiplex transmission system. This invention aims to achieve a statistic multiplexing effect in an image transmission system using terminals as stipulated by H.310 of an ITU-T recommendation. The system includes a network comprising a first local area ATM network, a second local area ATM network, and a public ATM network. Multiplex gateway devices are strategically placed between the local area ATM networks and the public ATM network. The multiplex gateway apparatus features ATM transmission line units that calculate statistic information represented by a mean rate and a peak cell rate of ATM cells in the transmission ATM signal. A statistic multiplexing control unit conducts rate addition after statistic multiplexing based on the statistic information and determines the rate addition result. Additionally, a piece-wise constant bit rate control unit calculates the required piece-wise constant bit rate based on the rate addition result and performs cell multiplex control accordingly. The ATM cell multiplexing/demultiplexing unit transmits a transmission statistic multiplex signal according to cell multiplexing control.
Another notable patent addresses the reduction of speech quality degradation caused by packet loss. This speech decoding device is designed to minimize degradation of speech quality that occurs during concealment processing when a packet loss happens, particularly in speech packet communications using Voice over Internet Protocol (VoIP). The decoding circuit decodes speech from a packet received through an input terminal and stores an internal signal in an updating buffer circuit. This internal signal, produced during the decoding process, is utilized in the decoding process for subsequent packets. The decoding circuit generates concealed speech corresponding to a lost packet based on the internal signal stored in the updating buffer circuit and outputs the produced concealed speech. The internal signal is updated using the concealed speech to enhance overall quality.
Career Highlights
Yoshiaki Nozawa has worked with notable companies such as NEC Corporation and Juniper Networks, Inc. His experience in these organizations has contributed to his expertise in communication technologies and innovation.
Collaborations
He has collaborated with esteemed colleagues, including Masahiro Serizawa and Jun Furukawa
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile