Sriram Ganapathy

Title: Sriram Ganapathy: Inventor in Audio Coding

Introduction

Sriram Ganapathy is an inventor associated with Baltimore, Maryland, and Qualcomm Incorporated. His patent work addresses audio coding and techniques for shaping quantization noise to better reflect the characteristics of an original audio signal.

Latest Patents

The provided information identifies one patent associated with Ganapathy: “Spectral Noise Shaping in Audio Coding Based on Spectral Dynamics in Frequency Sub-Bands.” The invention divides an input audio signal into frequency sub-bands designed to align closely with the critical bands of human hearing. It determines each sub-band’s tonality and applies time-domain linear prediction to tonal sub-bands, producing a residual signal and linear predictive coding coefficients. Frequency-domain linear prediction further processes the residual, and the resulting parameters are sent to a decoder. There, inverse processing shapes quantization noise according to the original sub-band’s power spectral density. Non-tonal sub-bands bypass the time-domain linear prediction stage. The patent count provided is 1 patent.

Career Highlights

Ganapathy’s listed company affiliation is Qualcomm Incorporated. The patent describes a method for improving audio coding by adapting noise shaping to spectral dynamics within frequency sub-bands.

Collaborations

The provided information lists Petr Motlicek and Harinath Garudadri as Ganapathy’s coworkers. Their names are associated with his professional context, though no specific roles in the patent are provided.

Conclusion

Sriram Ganapathy’s identified patent focuses on sub-band analysis and predictive processing to shape quantization noise in audio coding, reflecting his documented connection to innovation at Qualcomm Incorporated.