Company Filing History:
Years Active: 1994
Title: Alan G. Derr: Innovator in Embedded Signalling Technology
Introduction
Alan G. Derr is a notable inventor based in Westford, MA (US). He has made significant contributions to the field of digital information processing, particularly through his innovative patent related to embedded signalling technology. His work has implications for audio signal processing and digital communication.
Latest Patents
Alan G. Derr holds a patent for an invention titled "Embedded Signalling." This patent describes a method for generating a code signal that represents a sequence of code symbols carrying digital information. The frequency components of the code signal are confined to a preselected signalling band within the bandwidth of an audio signal. The audio signal is continuously frequency analyzed, allowing the code signal to be dynamically filtered. This results in a modified code signal that can be combined with the audio signal to create a composite audio signal that is not easily distinguishable from the original. The digital information can be recovered from this composite audio signal using a complementary procedure.
Career Highlights
Alan G. Derr is associated with Bolt Beranek and Newman Inc., where he has contributed to various projects and innovations. His work in embedded signalling technology showcases his expertise in audio signal processing and digital communications.
Collaborations
Some of his notable coworkers include Robert David Preuss and Salim Estephan Roukos. Their collaboration has likely contributed to advancements in the field of digital information processing.
Conclusion
Alan G. Derr's contributions to embedded signalling technology highlight his innovative spirit and dedication to advancing digital communication methods. His patent reflects a significant step forward in the integration of digital information with audio signals.