Company Filing History:
3 out of 6,152 
1 out of 25,946 
1 out of 1,721 
Years Active: 1990-2005
Title: The Innovations of Henry F. Blind
Introduction
Henry F. Blind is a notable inventor based in Grosse Pointe Woods, MI (US). He holds a total of 5 patents that showcase his contributions to audio technology. His work has significantly impacted the way audio signals are processed and reproduced.
Latest Patents
One of his latest patents is an audio amplifier with voltage limiting in response to spectral content. This invention allows audio signals to be reproduced with a consistent perception of total harmonic distortion, even when the spectral content varies. The amplifier determines a distortion threshold based on the frequency content of the audio signal. A distortion trigger then compares the measured average distortion signal to this threshold, reducing the amplifier's controllable gain if the average distortion exceeds the threshold.
Another significant patent is the exterior noise absorbing cover for automotive loudspeakers. This innovative cover prevents exterior noise from being transmitted through the loudspeaker into the automobile's interior. It features an air gap around the cover, which serves as a vent for static pressure, thus avoiding any degradation in low-frequency performance. The design of the air gap is oriented to exclude direct sound transmission paths for exterior noise.
Career Highlights
Henry F. Blind has worked with prominent companies such as Ford Motor Company Limited and Ford Global Technologies, LLC. His experience in these organizations has allowed him to develop and refine his innovative ideas in audio technology.
Collaborations
Throughout his career, Blind has collaborated with notable individuals, including Bradley Anderson Ballard and John W. Whikehart. These collaborations have contributed to the advancement of his inventions and the overall field of audio technology.
Conclusion
Henry F. Blind's contributions to audio technology through his patents demonstrate his innovative spirit and dedication to improving sound reproduction. His work continues to influence the industry and enhance the listening experience for users.