Company Filing History:
2 out of 51 
1 out of 4,491 
1 out of 7 Years Active: 1985-1986
Title: The Innovative Contributions of Roger H Therrien
Introduction
Roger H Therrien is a notable inventor based in Waterloo, Canada. He has made significant contributions to the field of technology, particularly in the area of automatic light control systems and self-adjusting video cameras. With a total of four patents to his name, Therrien's work showcases his innovative spirit and technical expertise.
Latest Patents
One of Therrien's latest patents is an automatic light control system. This system is designed to automatically control the light intensity of a light source based on the amount of light received by a photosensor. In a preferred embodiment, the light source illuminates a reference background, which reflects light to a photosensor in a video camera. The photosensor generates a video signal proportional to the reflected light, allowing for precise control of the light source's intensity.
Another significant patent is the self-adjusting video camera. This invention features an automatic self-adjusting CCD activated video camera circuit that adjusts various CCD channel offset and gain values to desired levels. By utilizing digitized internal black and white references, the camera optimally modifies channel gain and offset through two identical feedback loops. This innovation enhances the performance and usability of video cameras.
Career Highlights
Throughout his career, Roger H Therrien has worked with several prominent companies, including NCR Canada Ltd. and NCR Corporation. His experience in these organizations has contributed to his development as an inventor and has provided him with valuable insights into the technology industry.
Collaborations
Therrien has collaborated with various professionals in his field, including his coworker Maninderpal S Chahal. These collaborations have likely enriched his work and fostered a creative environment for innovation.
Conclusion
Roger H Therrien's contributions to technology through his patents reflect his dedication to innovation and improvement in the field. His work continues to influence advancements in automatic light control and video camera technology.