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River Sonic Solutions

Expert Witnessing and Technical Consulting in imaging, signal processing and electronics

Dr. Chris Daft Expert Witness

Dr. Chris Daft is an award winning, Oxford Educated scientist. He is an expert witness and consultant whose areas of expertise include signal and image processing, machine learning and medical imaging. Dr. Daft has extensive Intellectual Property experience including patent development, licensing, and serving as an expert witness who has testified at deposition and trial. He is a serial inventor who holds 24 U.S. Patents with more pending. Dr. Daft holds a BA and MA in Physics from Oxford, and a Doctorate from Oxford in Materials Science. The author may be contacted at:
chris.daft@riversonicsolutions.com
+1 (415) 800-3734 office +1 (408) 806 7525 cell
River Sonic Solutions LLC 2443 Fillmore St #380-4039, San Francisco, CA 94115

Voice biometrics expert witness: signal processing enables new forms of identity verification

By Dr. Chris Daft

voice biometrics expert witness

Defining voice biometrics Biometrics – automated recognition of a person based on a physiological or behavioral characteristic – continues to increase in importance. Smart cards, magnetic stripe cards, photo ID cards, and physical keys can be lost, stolen, duplicated, or left at home. Passwords can be forgotten, shared, or observed. But if well implemented, biometric … [Read more...] about Voice biometrics expert witness: signal processing enables new forms of identity verification

Remote source code review expert witness: options for attorneys

By Dr. Chris Daft

source code review expert witness

Introduction Often critical issues in technology litigation hinge on review of source code. In many cases, most of the value in highly litigated products lies in their software. Determining whether a product infringes a patent, or if a trade secret has been misappropriated, is increasingly a question of examining software. A previous blog post described reviewing source … [Read more...] about Remote source code review expert witness: options for attorneys

Finite Element Analysis expert witness: making complex issues clear

By Dr. Chris Daft

Finite Element Analysis of car crash

Introduction Finite element analysis (FEA) is a technique which helps explain complex technical issues by displaying them in a format which is easy to understand.  As such, it can be a potent tool in litigation.  In the illustration below, FEA was used to show stresses in a vehicle involved in a collision. The outline of the car is clearly visible, while color shows the stress … [Read more...] about Finite Element Analysis expert witness: making complex issues clear

Behavioral biometrics expert witness: identity from motion

By Dr. Chris Daft

cell phone establishing identity

Introduction A previous blog post introduced the subject of biometric security, covering how identity is established using biological inputs such as fingerprints, palm veins, and features of the face, iris or retina. Both the technologies involved in biometrics and the governing legal frameworks are changing. Here we focus on the behavioral side of biometrics and explore how … [Read more...] about Behavioral biometrics expert witness: identity from motion

Artificial Intelligence (AI) & Medical Imaging Expert Witness: Radiology’s Future

By Dr. Chris Daft

Artificial neural network

Introduction Artificial intelligence, machine learning and neural networks are continuously in the news. Beyond self-driving cars and movie recommendations, AI is used in an increasingly broad set of applications. For example: Fraud litigation prediction Predicting whether construction projects will go wrong Cyber-forensics Radiology research using image … [Read more...] about Artificial Intelligence (AI) & Medical Imaging Expert Witness: Radiology’s Future

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Dr. Chris Daft

Dr Chris Daft

Dr. Chris Daft is an award winning, Oxford Educated scientist who provides technical consulting and expert witnessing services.
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2443 Fillmore St. #380-4039
San Francisco, CA 94115
USA

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RiverSonicSolnsRiverSonic Solutions@RiverSonicSolns·
February 24, 2021

Many congratulations to the authors of an imminent and much-needed book on #MEMS product development! I'm glad to have learned so much from Alissa M. Fitzgerald, Ph.D.
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RiverSonicSolnsRiverSonic Solutions@RiverSonicSolns·
February 4, 2021

Virtual juries, remote depositions and cybersecurity - a judge's view of #litigation in the new normal world https://lnkd.in/g8jDjJj

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RiverSonicSolnsRiverSonic Solutions@RiverSonicSolns·
January 30, 2021

How long does it take to #patent your idea? Two years on average, but there are specialized techniques which sometimes accelerate the process a lot https://lnkd.in/gKK5A-t

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RiverSonicSolnsRiverSonic Solutions@RiverSonicSolns·
January 13, 2021

In 1947, startling lab results reached Israel Weinstein, NYC's health commissioner: someone who arrived from Mexico City tested positive for smallpox https://lnkd.in/gZTbaHb

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RiverSonicSolnsRiverSonic Solutions@RiverSonicSolns·
December 25, 2020

"Words are to a lawyer what mathematics is to a physicist." For holiday #law amusement, check out the long shadow of the 15th century, when each case was trilingual: https://lnkd.in/gb9xvv9

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