John A Andrews

Title: John A. Andrews: Innovator in Audio Signal Processing

Introduction

John A. Andrews is a notable inventor based in Greenwood, IN (US). He has made significant contributions to the field of audio signal processing, particularly with his innovative approach to suppressing audible transients in audio channels. His work has implications for enhancing audio quality in various electronic devices.

Latest Patents

Andrews holds a patent for a "Supply voltage responsive audible transient (POP) suppression arrangement." This invention addresses the issue of audible transients or 'pops' that occur when the bias voltage in an audio signal processing channel is rapidly reduced. The patent describes a bias network that derives a bias voltage from the supply voltage, coupled with a diode that selectively decouples a filter capacitor from the voltage supply when deenergized. This arrangement allows for a gradual reduction of the bias voltage, independent of the impedances of the voltage supply and associated loads, thereby improving audio performance.

Career Highlights

John A. Andrews is associated with Thomson Consumer Electronics Inc., where he has applied his expertise in audio technology. His work has contributed to advancements in consumer electronics, particularly in enhancing the listening experience for users.

Collaborations

Andrews has collaborated with Mark R. Anderson, working together to innovate and improve audio signal processing technologies. Their partnership has fostered a creative environment that encourages the development of effective solutions in the field.

Conclusion

John A. Andrews is a distinguished inventor whose work in audio signal processing has made a lasting impact on the industry. His innovative patent for transient suppression demonstrates his commitment to improving audio quality in consumer electronics.