This inventor holds 3 USPTO granted patents. Top assignee: Harman International Industries, Inc.. Active years: 2008-2011.
Company Filing History:
Years Active: 2008-2011
Title: Mark Spellman: Innovator in High Definition Radio Technology
Introduction
Mark Spellman is a notable inventor based in Novi, MI (US), recognized for his contributions to high definition radio technology. With a total of 3 patents, he has made significant advancements in the blending of hybrid radio signals, enhancing audio quality and user experience.
Latest Patents
One of his latest patents is a "System for High Definition Radio Blending." This innovative system provides reduced volume level transitions during the blending process from an analog component of the hybrid signal to the digital component. It achieves this by adjusting blend and cross-fade variables, as well as implementing a hysteresis mode to prevent undesirable transitions back to analog mode. Additionally, the system compensates for digital AM frequency quality issues by adjusting filter bandwidth during the blending process.
Another significant patent is the "Audio Correlation System for High Definition Radio Blending." This system aims to reduce audio content skipping by determining the audio correlation between analog and digital signal components before blending. Similar to his previous invention, it reduces volume level transitions through adjustments of blend and cross-fade variables and includes a hysteresis mode to prevent sequential jumping between modes. The system also addresses digital AM frequency quality issues by adjusting filter bandwidth during the blending of AM signals.
Career Highlights
Mark Spellman is currently employed at Harman International Industries, Inc., where he continues to innovate in the field of audio technology. His work has significantly impacted the way hybrid radio signals are processed and experienced by users.
Collaborations
Throughout his career, Mark has collaborated with talented individuals such as Vasant Shridhar and Nicolai Pavlov, contributing to the development of advanced audio technologies.
Conclusion
Mark Spellman's innovative work in high definition radio technology has led to significant advancements in audio blending systems. His patents reflect a commitment to improving user experience and audio quality in hybrid radio signals.