This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignee: Mcintosh Laboratory, Inc.. Active years: 1976-1977.
Company Filing History:
Years Active: 1976-1977
Title: Innovations of Ronald C. Evans
Introduction
Ronald C. Evans is a notable inventor based in Binghamton, NY (US). He has made significant contributions to the field of audio signal processing, holding a total of five patents. His work focuses on improving the performance and efficiency of audio amplifiers.
Latest Patents
One of his latest patents is a logarithmic converter. This system derives a voltage that is a logarithmic function of the peak value of an audio signal. The audio input signal is amplified using an operational amplifier with bipolar feedback through a pair of oppositely poled rectifying junction devices. These devices operate over logarithmic portions of their response characteristics. The output of the operational amplifier is applied in opposite polarities to a second pair of rectifying junction devices, which rectify a bipolar signal and control current flow to a storage capacitor. This innovative design allows for improved operation, especially when transistors are used, as they exhibit both gain and rectifying characteristics.
Another significant patent is for amplifier improvements aimed at limiting clipping. In this design, a differential amplifier compares the amplifier input signal with the feedback signal. The output of the differential amplifier is connected to a full-wave rectifier, which controls an attenuator between the source of electrical input signals and the amplifier. When the amplifier operates within its linear range, the differential amplifier does not produce an output, allowing the input signal to remain unattenuated. However, when clipping occurs, the differential amplifier generates an output that increases attenuation, thereby reducing the amplitude of the signal applied to the amplifier.
Career Highlights
Ronald C. Evans is currently associated with McIntosh Laboratory, Inc., where he continues to innovate in audio technology. His work has significantly impacted the design and functionality of audio amplifiers, enhancing the listening experience for users.
Collaborations
He has collaborated with notable coworkers such as Sidney A. Corderman and Lawrence W. Fish, Jr. Their combined expertise has contributed to the advancement of audio technology.
Conclusion
Ronald C. Evans is a distinguished inventor whose patents have advanced the field of audio signal processing. His innovative designs continue to influence the industry and improve audio technology.