Srikanth Vishnubhotla

Title: Innovations by Srikanth Vishnubhotla

Introduction

Srikanth Vishnubhotla is an accomplished inventor based in Minnetonka, MN (US). He holds a total of 6 patents that showcase his expertise in developing innovative solutions, particularly in the fields of signal processing and hearing assistance technologies.

Latest Patents

One of his latest patents is titled "Multiple pitch extraction by strength calculation from extrema." This invention includes an apparatus that comprises a function module, a strength module, and a filter module. The function module compares an input signal, which has a component, to a first delayed version and a second delayed version of the input signal to produce a multi-dimensional model. The strength module calculates the strength of each extremum from a plurality of extrema of the multi-dimensional model based on a value of at least one opposite extremum. It identifies a first extremum associated with the pitch of the component that has a strength greater than the remaining extrema. The filter module then extracts the pitch of the component from the input signal based on the strength of the first extremum.

Another significant patent is "Methods and apparatus for reducing ambient noise based on annoyance perception and modeling for hearing-impaired listeners." This invention discloses methods for improving noise cancellation for users of hearing assistance devices. The method includes calculating an annoyance measure based on a residual signal in the wearer's ear, their hearing loss, and preferences. A spectral weighting function is estimated and incorporated into a cost function for updating the adaptive filter, ultimately minimizing annoyance to achieve perceptually motivated adaptive noise cancellation.

Career Highlights

Throughout his career, Srikanth has worked with notable organizations, including the University System of Maryland and Starkey Laboratories, Inc. His contributions to these institutions have significantly advanced the fields of audio technology and hearing assistance.

Collaborations

He has collaborated with esteemed colleagues such as Carol Espy-Wilson and Tao Zhang, further enhancing the impact of his work in the industry.

Conclusion

Srikanth Vishnubhotla's innovative patents and career achievements reflect his dedication to improving technology for hearing-impaired individuals. His work continues to influence advancements in audio processing and noise cancellation technologies.