Sarangan Narasimhan

Title: The Innovations of Sarangan Narasimhan

Introduction

Sarangan Narasimhan is a prominent inventor based in San Jose, California. He has made significant contributions to the field of touchscreen technology, holding a total of 10 patents. His work focuses on enhancing the functionality and efficiency of capacitive touchscreens, which are widely used in various electronic devices.

Latest Patents

One of his latest patents is titled "Method and apparatus for arbitrating among contiguous buttons on a capacitive touchscreen." This invention describes various embodiments of a capacitive touchscreen system and corresponding methods. A touchscreen controller is operably connected to a first plurality of drive electrodes, a second plurality of sense electrodes, and a host processor. The touchscreen controller has computer-readable button group programming instructions and data loaded into a first memory portion from the host processor. These instructions comprise steps for sensing and arbitrating among touches occurring on and within a first plurality of buttons. Additionally, firmware instructions and data are loaded into a second portion of the memory of the touchscreen controller. The first plurality of buttons is arranged in a first group on the touchscreen, located within a first portion of the touchscreen. Capacitive sensing of touches occurring on and within at least second portions of the touchscreen, located outside the first portion, is controlled by the firmware instructions.

Another notable patent is related to "Sensor patterns for mutual capacitance touchscreens." According to one embodiment, this invention provides a mutual capacitance touchscreen comprising a first set of electrically conductive traces arranged in rows or columns and a second set arranged at right angles. The first and second sets of traces are electrically insulated from and interdigitated with respect to one another. Gaps between the first and second sets of traces form boundaries that undulate and are not straight or linear. Other embodiments include 'mini-diamond' sensor array patterns and low-cost manufacturing techniques for sensor array patterns.

Career Highlights

Sarangan Narasimhan has worked with various companies, including Pixart Imaging Incorporated. His experience in the industry has allowed him to develop innovative solutions that enhance touchscreen technology.

Collaborations

Throughout his career, he has collaborated with notable individuals such as Thomas Patrick Murphy and Kevin Rathburn. These collaborations have contributed to the advancement of his inventions and the development of new technologies.

Conclusion

Sarangan Narasimhan's contributions to touchscreen technology through his patents and collaborations highlight his innovative spirit and dedication