Company Filing History:
Years Active: 1984-1991
Title: David W Walton: Innovator in Stereo Indication Technology
Introduction
David W Walton is a notable inventor based in Otley, GB. He has made significant contributions to the field of audio technology, particularly in stereo indication circuits. With a total of two patents to his name, Walton's work has had a lasting impact on how audio signals are processed and displayed.
Latest Patents
One of Walton's latest patents is focused on switching circuitry for stereo indicating circuits. This invention is designed for use in devices such as radio tuners and televisions. The circuit applies audio signals from the left and right output channels to respective limiting circuits, with the output signals being fed to an OR gate. When a monoaural signal is detected, the signals in the two output channels coincide, resulting in a low output from the exclusive OR gate. Conversely, when stereo signals are present, a finite phase difference exists between the two signals, leading to a high output from the OR gate. A Schmitt trigger drives an LED display to indicate when a stereo signal is being reproduced, illuminating even during momentary interruptions of the audio signal due to a capacitor/resistor circuit that imposes a time delay.
Career Highlights
Throughout his career, Walton has worked with prominent companies, including Thorn EMI Ferguson Limited and Ferguson Limited. His experience in these organizations has contributed to his expertise in audio technology and innovation.
Collaborations
Walton has collaborated with notable individuals in his field, including Douglas R Topping and Leslie R Sage. These partnerships have likely enriched his work and expanded the scope of his inventions.
Conclusion
David W Walton is a distinguished inventor whose contributions to stereo indication technology have advanced the way audio signals are processed and displayed. His innovative patents and collaborations reflect his commitment to enhancing audio technology.