Johnny M Matta

Title: Johnny M. Matta: Network Quality and Adaptive VoIP Innovations.

Introduction

Johnny M. Matta is an inventor based in San Jose, California, whose patent work addresses network performance measurement and voice-over-IP (VoIP) adaptation. His listed portfolio includes 4 patents, with the described inventions focused on assessing network quality and improving voice transmission.

Latest Patents

**Catprobe — A Method of Estimating Bandwidth Capacity, Available Bandwidth, and Utilization Along a Path in an IP Network.** This invention describes sending ICMP timestamp requests from a source host to routers along a path toward a destination. By comparing timestamp values, the method gathers indicators of quality of service at individual routers. The measurements are processed to estimate path capacity, available bandwidth, link utilization, and congestion, helping characterize bandwidth quality across the end-to-end route.

**Source and Channel Rate Adaptation for VoIP.** This invention describes a terminal with a multi-rate codec that can adjust source and channel coding rates during continuous voice transmission. Quality-of-service probing measures conditions along the network path, while a management module identifies relevant constraints. An adaptive algorithm then adjusts the coding rates in response to those measurements and constraints to improve perceived user performance.

Career Highlights

Matta’s described patent work connects network measurement with adaptive communications. Catprobe focuses on estimating bandwidth and congestion across IP routes, while the VoIP invention uses network-quality information to adjust transmission rates. The supplied information identifies NTT DOCOMO, Inc. as his company.

Collaborations

The supplied information lists Atsushi Takeshita and Christine Pepin among Matta’s coworkers. Their inclusion indicates professional connections, though no specific roles in the described patents are provided.

Conclusion

Johnny M. Matta’s listed inventions address two complementary challenges in communications: measuring network conditions and adapting voice transmission to them. Together, these approaches aim to support more informed bandwidth assessment and improved VoIP performance.