Company Filing History:
Years Active: 1999-2005
Title: Innovations of Hari Vasudev
Introduction
Hari Vasudev is an accomplished inventor based in Sunnyvale, CA. He has made significant contributions to the field of digital photography through his innovative designs. With a total of 3 patents to his name, he has demonstrated a commitment to enhancing the functionality of digital cameras.
Latest Patents
One of his latest inventions is the intelligent camera flash system. This system is designed for digital cameras and includes components such as an image optical pickup, an interface circuit, a flash unit, and a processor. Upon activation of the camera, the system evaluates ambient lighting conditions. If flash energy is required, a first low energy pre-flash is emitted. The reflected light is captured by the optical pickup, which contains a multiplicity of pixels. The output from these pixels is converted to image intensity data by the interface circuit. The processor then samples this data, giving more weight to the center image area, and creates a histogram plot of pixel quantity versus intensity. This plot is separated into a bar graph, allowing for a determination of exposure. The histogram is used to calculate a multiplicative scaling factor, which adjusts the first flash energy to estimate the correct exposure. In cases of extreme over or under exposure, a second flash is activated at an adjusted energy level. The image data from this second flash is analyzed, and the exposure is compared with the first flash result. A final determination of flash energy is made based on these results.
Career Highlights
Hari has worked with notable companies such as Fotonation Limited and Flashpoint Technology, Inc. His experience in these organizations has contributed to his expertise in camera technology and innovation.
Collaborations
Some of his coworkers include Eran Steinberg and Sumat Mehra. Their collaboration has likely played a role in the development of his innovative projects.
Conclusion
Hari Vasudev is a notable inventor whose work in intelligent camera flash systems has significantly impacted digital photography. His patents reflect a deep understanding of technology and a commitment to improving user experience.