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Indranil Sarkar PhD

Technology Specialist


Indranil Sarkar is a Technology Specialist in the Boston office of Fish & Richardson. His practice supports patent prosecution in the area of electrical and computer engineering, with particular emphasis on wireless technologies, signal and image processing, video coding, computer architecture, medical devices and software. He also has experience in re-examination and opinion work, particularly in the field of computer architecture.

His doctoral research was in the area of pulse compression codes and their mismatched filtering for various radar, communications, medical, and image processing applications.


  • United States Patent and Trademark Office (Has limited recognition under 37 CFR 11.9(b) to represent Fish clients)

Memberships and Affiliations

Reviewer: IEEE Transactions on Aerospace and Electronic Systems, Elsevier Signal Processing, and Elsevier Digital Signal Processing.

Other Distinctions


  • Co-inventor, US Patent No. 7,492,312, "Multiplicative Mismatched Filters for Optimum Range Sidelobe Suppression in Barker Code Reception." 
  • Co-inventor, US Patent No. 7,843,382, "Mismatched Filter."

Selected journal publications

I. Sarkar, T. Poonnen, and A.T. Fam "Area and power efficient mismatched filters based on sidelobe inversion,", Signal Processing, Vol. 89, No. 8, Pages 1550-1556. (August 2009)

A.T. Fam and I. Sarkar, "A New Class of Interlaced Complementary Codes Based on Components with Unity Peak Sidelobes," Signal Processing, Vol. 88, No. 2, Pages 307-314 (February 2008).

I. Sarkar and A.T. Fam, "Multiplicative mismatched filters for sidelobe suppression in Barker codes," IEEE Transactions in Aerospace and Electronic Systems, Vol. 44, No. 1, Pages 349-359 (January 2008).

I. Sarkar and M. Bansal, "A Wavelet Based Multi-Resolution Approach to Solve Stereo Correspondence Problem Using Mutual InformationIEEE Transactions on Systems, Man and Cybernetics, Part B., Vol. 37, No. 4, Pages 1009-1014 (August 2007).

I. Sarkar and A.T. Fam, "The interlaced chirp Z transform," Signal Processing, Vol. 86, No. 11, Pages 2221-2232 (November 2006).

Selected conference publications and presentations

A.T. Fam, I. Sarkar, and T. Poonen, "Area and Power Efficient Mismatched Filters based on Sidelobe Inversion," Proc. IEEE Radar Conference 2008, Rome, Italy, 1262-1267 (May 2008).

A.T. Fam and I. Sarkar, "A new class of interlaced complementary codes based on components with unity peak sidelobes," Proc. 7th IEEE International Symposium on Signal Processing and Information Technology (ISSPIT 2007), Cairo, Egypt, 464-469 (December 2007).

I. Sarkar and A.T. Fam, "Factored Mismatched Filters for Compound Barker Codes," IEEE Radar 2007, Waltham, MA, 541-546 (April 2007).

I. Sarkar and A.T. Fam, "Multiplicative Mismatched Filter for Optimum Sidelobe Suppression in Barker Codes," with A. T. Fam, Signal Processing, Sensor Fusion and Target Recognition XV, SPIE Defense and Security Symposium, Orlando, Florida, 6235, 62351M1-62351M10 (April 2006).

I. Sarkar and A.T. Fam, "The Interlaced Chirp Z Transform," Proceedings of the 7th IEEE International Conference on Signal Processing and Communications (SPCOM 2004), Indian Institute of Science, Bangalore, India, 46-50 (December 2004).


  • Hindi
  • Bengali


  • PhD, State University of New York at Buffalo 2007
    Electrical Engineering
  • MS, State University of New York at Buffalo 2004
    Electrical Engineering
  • BE, Visveswaraiah Technological University 2002
    Electronics and Communication
    with distinction