This inventor holds 2 USPTO granted patents, plus 1 CIPO patent. Top assignees: Arris International, Inc., Numerex Investment Corp.. Active years: 1998-2003.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1998-2003
Title: The Innovations of Roger Raymond Darr
Introduction
Roger Raymond Darr is an accomplished inventor based in Bethlehem, GA (US). He holds a total of 2 patents that showcase his contributions to the field of communications technology. His work has significantly impacted the way echo cancellation and supervisory signaling are approached in modern systems.
Latest Patents
One of Darr's latest patents is titled "Method for accelerating the training of adaptive echo cancelers in the presence of interfering sinusoidal signals." This invention describes a system and method for canceling both an echo signal and a spurious sinusoidal signal, such as a telephone dial tone or a carrier signal, from a return signal in a communications system. The process involves producing a replica of the echo signal using an adaptive filter and generating a replica of the sinusoidal signal using an oscillator circuit. The replicas are then subtracted from the return signal to enhance clarity.
Another significant patent is "Apparatus and method for supervising derived channel communications." This invention implements a supervisory signal for a derived channel data reporting system as a tone with a frequency capable of transmission over a telephone signal communicating network. The tone operates effectively within a frequency range of 200 Hz to 300 Hz and is compatible with various modulation systems, ensuring reliable communication even in limited frequency environments.
Career Highlights
Throughout his career, Roger Darr has worked with notable companies such as Numerex Investment Corporation and Arris International, Inc. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects in the telecommunications sector.
Collaborations
Darr has collaborated with several professionals in his field, including Walt Jehnert and Stephen A Hughey. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Roger Raymond Darr's contributions to the field of communications through his patents and collaborations highlight his innovative spirit and dedication to advancing technology. His work continues to influence the industry and pave the way for future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile