Company Filing History:
8 out of 2,276 
1 out of 2 
1 out of 424 Years Active: 1984-2009
Title: David A Kahn: Innovator in Colorimetric Devices and Eye-Directed Communication
Introduction
David A Kahn is a notable inventor based in Nepean, Canada. He has made significant contributions to the fields of colorimetric devices and communication technology, holding a total of 11 patents. His work focuses on creating innovative solutions that enhance accessibility for individuals with visual impairments.
Latest Patents
One of Kahn's latest patents is a colorimetric device designed for use by blind or color-blind individuals. This hand-held device allows users to determine the color of a surface-under-test (SUT), such as fabric. The device features an aperture covered by the SUT, and it utilizes six LEDs emitting red/orange, green, and blue light to illuminate the SUT. The device measures the diffuse reflections and compares them with reference colorimetric values to identify the color of the SUT. Notably, the device can output the name of the color aurally, making it user-friendly for those with visual impairments.
Another significant patent involves a visual communications apparatus that employs eye-position monitoring. This eye-directed device displays characters and determines user selection by tracking eye movements. Kahn's innovation simplifies the selection process by dividing characters into three sets: lower case, upper case, and command case. Users can select a character by first choosing the case and then the character, enhancing the efficiency of communication for individuals with disabilities.
Career Highlights
Throughout his career, David A Kahn has worked with several companies, including Northern Telecom Limited and H.K. Eyecan Ltd. His experience in these organizations has contributed to his expertise in developing assistive technologies.
Collaborations
Kahn has collaborated with notable individuals in his field, including Jan Heynen and Jaroslav M Hvezda. These partnerships have likely enriched his work and led to further advancements in his inventions.
Conclusion
David A Kahn's innovative contributions to colorimetric devices and eye-directed communication technology demonstrate his commitment to improving accessibility for individuals with visual impairments. His patents reflect a deep understanding of user needs and a dedication to creating practical solutions.