Location History:
- Acton, MA (US) (1979 - 1980)
- Cupertino, CA (US) (1980 - 1981)
- Saratoga, CA (US) (1980 - 1987)
Company Filing History:
3 out of 8,684 
2 out of 4 
1 out of 5 Years Active: 1979-1987
Title: N Balasubramanian: Innovator in Electrophotographic Technology
Introduction
N Balasubramanian is a prominent inventor based in Saratoga, CA (US), known for his contributions to electrophotographic technology. He holds a total of 12 patents, showcasing his innovative spirit and technical expertise in the field.
Latest Patents
Among his latest patents is a method for reading deformation images on electrophotographic media. This method involves scanning an image surface and measuring microscopic surface tilt in a reflected beam. In one embodiment, the deformation image is scanned telecentrically, while in another, the surface is scanned with a beam at angles to the surface. By intercepting the retroflected beam and measuring the deviation of the reflected beam from the scanning center, a number proportional to surface tilt is determined. This process allows for the electrical integration over neighboring regions, ultimately constructing an electrical or optical pattern that reimages the deformation image.
Another significant patent is for a braked media transport for laser scanners. This invention features a servo system for a braked accelerative transport, where a signal representing the velocity of a carriage is compared to a reference signal representing the desired carriage velocity. The resulting error signal is utilized to adjust the brake of the transport. A hydraulic valve with an adjustable needle serves as the brake, and a second selectable reference signal is provided to bypass the first reference signal during high-velocity resets.
Career Highlights
Throughout his career, N Balasubramanian has worked with various organizations, including the US Government as represented by the Secretary of the Army. His work has significantly impacted the field of electrophotography and related technologies.
Collaborations
One of his notable collaborators is Alan L Helgesson, who has contributed to his projects and innovations.
Conclusion
N Balasubramanian's innovative contributions to electrophotographic technology and his extensive patent portfolio highlight his role as a leading inventor in the field. His work continues to influence advancements in technology and engineering.