Company Filing History:
1 out of 2,297 
1 out of 2,019 
Years Active: 2000-2001
Title: Keith Childs: Innovator in Signal Processing Technologies
Introduction
Keith Childs is a notable inventor based in Whitinsville, MA (US). He has made significant contributions to the field of signal processing, holding a total of 2 patents. His work primarily focuses on enhancing data transmission through innovative methods and apparatuses.
Latest Patents
One of Keith's latest patents is titled "Method and apparatus for dynamic signal modification on a parallel bus." This invention involves a SCSI bus expander that provides signal conditioning for transmitted data pulses, tailored to a negotiated data transfer rate. The expander monitors bus arbitration to identify the devices involved in the transfer and subsequently tracks data transfer rate negotiations. It stores an indication of the transfer rate in a memory device, which is determined by the device IDs. This transfer rate is then utilized to select tap values for tap lines that modify the pulse width and/or propagation delay, correcting signal degradation and improving alignment during data transmission. The specific tap values can vary based on the combinations of transmitting and receiving devices, as the required modifications may differ for various transmission rates.
Another significant patent by Keith is the "Auto-calibrating digital delay circuit." This invention comprises a tapped delay element line made from delay elements with fixed delay intervals. A multiplexer selects the signal at one of the taps to produce a variable delay through the circuit. The multiplexer is controlled by a selection circuit that receives input indicative of the actual delay time from an oscillator constructed from the same fixed delay elements as the delay line.
Career Highlights
Throughout his career, Keith has worked with prominent companies such as Digital Equipment Corporation and Compaq Computer Corporation, Inc. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.
Collaborations
Keith has collaborated with several professionals in his field, including his coworker Fee Lee. Their joint efforts have led to advancements in signal processing technologies.
Conclusion
Keith Childs is a distinguished inventor whose work in signal processing has led to valuable patents that enhance data transmission. His contributions continue to influence the industry and inspire future innovations.