Location History:
- Saratoga, CA (US) (2014 - 2016)
- Sunnyvale, CA (US) (2013 - 2018)
Company Filing History:
2 out of 1,284 
2 out of 159 
1 out of 41,326 
Years Active: 2013-2018
Title: Natarajan Viswanathan: Innovator in Touchscreen Technology
Introduction
Natarajan Viswanathan is a prominent inventor based in Sunnyvale, CA. He has made significant contributions to the field of touchscreen technology, holding a total of 5 patents. His innovative work focuses on enhancing the performance of capacitive touchscreen controllers, particularly in noisy environments.
Latest Patents
One of Natarajan's latest patents is a noise cancellation technique for capacitive touchscreen controllers using differential sensing. This technique provides a means for detecting one or more touch events on a touch-sensitive device in the presence of incident noise. Instead of sensing one touch-sensitive channel, such as a row, column, or single touch sensor, multiple touch-sensitive channels are sampled simultaneously. By sampling two nearby channels at the same time and performing the measurement differentially, noise common to both channels is effectively cancelled. The differential sensing scheme is implemented using simple switch-capacitor AFE circuitry. The originally sensed data on each individual channel is recovered free of common-mode noise. The recovered sensed data is then used to determine the presence of one or more touch events and, if present, the location of each touch event on the touch-sensitive device.
Career Highlights
Natarajan has worked with several notable companies throughout his career, including Maxim Integrated Products, Inc. and Qualcomm Technologies, Inc. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in technology.
Collaborations
Some of Natarajan's coworkers include Ashutosh Ravindra Joharapurkar and Patrick Yin Chan. Their collaboration has likely fostered an environment of innovation and creativity, leading to the development of advanced technologies in the field.
Conclusion
Natarajan Viswanathan is a distinguished inventor whose work in touchscreen technology has made a significant impact. His innovative approaches to noise cancellation in capacitive touchscreens demonstrate his commitment to enhancing user experience and device performance.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.