Video Compression Standards Expert Profile
Professor with unique expertise in JPEG image and MPEG video standards who conducts research in computer vision, pattern recognition, and machine learning.
Signal Processing
Barr Group's multimedia and signal processing expert witnesses assess patent portfolios and advise attorneys in litigation. Our experts have hands-on experience designing products that perform multimedia functions and process audio/video/image data and other streaming signals in real-time. They also have demonstrated experience testifying in high-stakes IP litigation.
Need a signal processing expert for litigation? Contact us >
Audio/Video/Image Processing and DSP
Barr Group's signal processing experts are in the business of designing electronics and software that manipulate audio, video, image, and other data using analog and digital filters, for uses such as:
- Lossy and lossless data compression techniques
- Audio encoding and formats such as MP3/M4A, 3GP, WMA
- Streaming video coding/codecs including MPEG and H.264
- Error detection and correction and associated ECCs, CRCs, etc.
- Facial recognition algorithms including machine learning
- Image processing and AI for feature extraction
- Machine vision in self-driving vehicles and factory automation
- Streaming audio and video services and apps (Spotify, Netflix)
- Automatic music detection technologies a la Pandora
- Speech recognition and natural language processing (NLP)
- Voice recognition and other biometric security apparatus
- Digital music instruments and recording/mastering equipment
- Video recording, storage, and playback
- Fitbit-like step trackers as well as heart-rate monitoring equipment
- Array processing of data from distributed sensors
Barr Group's software engineers are familiar with all of the major technologies used to perform signal processing, including DSP and GPU processors and their specialized real-time operating systems as well as the full range of programming languages from assembly and C/C++ to Matlab and Labview. We also understand analog and digital electronics.
Request your signal processing expert now >
Expert Witness Services
Barr Group's multimedia and signal processing experts support plaintiffs and defendants in litigation in U.S. District Courts, at the International Trade Commission (ITC), and before the Patent Trial and Appeal Board (PTAB). Our services include:
- Technical assistance with drafting of discovery requests
- Software source code review and analysis
- Source code comparisons for copyright and trade secret theft
- Prior art review for patent invalidity
- Analysis of electronics and related design documents
- Reverse engineering, including disassembly of binary code
- Forensic analysis, including multimedia metadata extraction
- Expert reports, declarations, and witness statements
- Testimony at deposition, oral hearings, and trials
Barr Group has a demonstrated ability to quickly activate one or more experts to match the size, scope, and complexity of any project.
The following is a representative subset of Barr Group's experts who have experience designing and/or testifying about these technologies:
System-on-Chip and ASIC Design Expert Profile
Consultant and expert in all aspects of VLSI and SoC design methodology, from microarchitecture to algorithm development to RTL and physical design.
Communication Theory and DSP Expert Profile
Professor of communications theory and signal processing with twenty-five years experience applying these to innovate in a range of industries.
Microwave and RF Electronics Expert Profile
Consulting engineer with decades of experience in the design and development of electronics with high-speed analog, RF, and microwave circuits.
Automated Surveillance Systems Expert Profile
Computer systems expert with twenty five years experience including in video streaming/coding/processing and the design of AI-enhanced automated video security systems.
Vehicle Navigation Sensor Fusion Expert Profile
Professor with decades of experience in technologies from communication protocols to smart transportation systems for connected and autonomous vehicles.
End-to-End Network Architecture Expert Profile
Wireless communications consultant specializing in network performance analysis, radio network coverage and capacity planning, spectrum management, and traffic modeling.
High-Speed Communication Interfaces Expert Profile
Internationally recognized expert in high-speed communications and computing as well as semiconductor device development.
Advanced Military Radar Systems Expert Profile
Professor with significant expertise including in advanced radar, software-defined radio, and broadband powerline communications.
Digital Cellular Mobile Radio Expert Profile
Leading expert in the field of digital cellular mobile radio communications who was involved in the development of the earliest GSM standard.
Physical Layer Communications Expert Profile
Consultant with two decades of experience in wireless protocols and standards, including all generations of the IEEE 802.11 “WiFi” and GSM cellular standards.
Computer Vision and Perception Expert Profile
Professor of mechanical and aerospace engineering with expertise in sensor fusion and computer perception for autonomous systems, including self-driving cars.
Wireless Power Transfer Expert Profile
Professor of electrical engineering with experience in power electronics, including low power circuits, solar cells, wireless power transfer, and high voltage systems.
Spread Spectrum Communications Expert Profile
Consulting electrical engineer with thirty-five years of experience in cellular standards including GSM, UMTS, and LTE and other wireless communication protocols.
GPS-Guided UAV Flight Systems Expert Profile
Electrical engineer with three decades of experience in safety-critical aerospace, automotive, and medical and expertise in hybrid electric vehicles.
Computer Music and Multimedia Expert Profile
Software developer and professor with extensive experience designing/developing/deploying advanced multimedia on platforms including handheld devices.
Wireless and Cellular Standards Expert Profile
Cellular and wireless communications expert with experience in military radio and mesh networks who has also been a leader in protocol standards development.
Electronic Warfare and SIGINT Expert Profile
Professor of electrical and computer engineering who consults and specializes in secure waveform design, electronic warfare, and satellite communications.
Parallel Processing Architectures Expert Profile
Professor and researcher specializing in computer systems architecture, performance measurement, parallel processing, and high-performance computing.
Internet and Cellular Standards Expert Profile
Scientist and leading expert in communications standards and protocols, including TCP/IP, 802.11 WiFi and cellular/LTE.
Semiconductor Fabrication Expert Profile
Consultant with over two decades of experience in semiconductor design and testing, including foundry process evaluation and selection.
Electric Power Conditioning Expert Profile
Professor and expert with twenty five years of experience in power electronics, including power quality and conditioning as well as renewable energy generation.
Fingerprint Biometric Systems Expert Profile
Former professor of computer engineering with expertise in biometric systems and technologies and a leading authority in fingerprint identification technologies.
Streaming Multimedia Expert Profile
Technology consultant with decades of experience in development and implementation of digital audio and video such as CD, DVD, Blu-ray, and streaming multimedia.
Image and Facial Recognition Expert Profile
Professor and consultant with thirty years of experience in computer vision and image and video processing as well as color engineering and control systems for print engines.
Video Game & Casino Gaming Expert Profile
Engineering consultant with twenty-five years of experience in systems for gaming and gambling including the design and analysis of casino games.
Online and Casino Gaming Expert Profile
Computer engineering consultant with four decades of experience in the casino gaming industry, including development of gaming and related technologies.
Cluster & Supercomputing Expert Profile
Professor of computer science and applied mathematics with expertise in cloud computing architectures for data-intensive and artificial intelligence applications.
Cellular Wireless Air Interface Expert Profile
Professor of electrical engineering and computer science with decades of R&D experience in communications networks and wireless signal detection and estimation.
Deep Learning & A.I. Systems Expert Profile
Former professor with twenty five years of experience in machine learning for speech recognition and computer vision as well as in data centers and blockchain.
Speech-Based Interface & RFID Expert Profile
Consultant and former professor of computer science with decades of hands-on experience in speech recognition, IVR, RFID, streaming multimedia, and data encryption.
Speech & Voice Recognition Expert Profile
Professor of computer science with two decades of experience at the forefront of the analysis and processing of electronic documents and speech / voice.
Haptic Input & Virtual Reality Expert Profile
Engineering professor with decades of experience in virtual reality (VR), streaming multimedia, computer vision, artificial intelligence (AI), and robotics.
Drone and UAV Navigation Expert Profile
USAF researcher in image processing and GPS-denied navigation with decades of experience in control systems including for aerial drones and UAVs.
Acoustics and Audio Processing Expert Profile
Professor of electrical engineering who spent two decades researching and inventing algorithms at the intersection of acoustics, digital signal processing, and machine learning.
Medical Image Processing Expert Profile
Researcher and consultant with a PhD in electrical engineering and specialized expertise in signal, image and video processing, and data compression.
Nanoelectronic & MEMS Sensors Expert Profile
Engineering professor with decades of experience at the forefront of the design and fabrication of microelectromechanical systems (MEMS) and nano devices.
Security and Surveillance Camera Expert Profile
Stanford-educated professor, whose industry career began at AT&T Bell Labs, with specialized expertise in cyber-physical systems and computer vision.
Manufacturing Automated Test Expert Profile
Professional Engineer (PE) with several of hands-on experience developing products and software for industrial, consumer, enterprise, military, and medical applications.
Virtual Reality Worlds & Gaming Expert Profile
MIT-educated electrical engineer with decades of industry experience designing software and electronics including for computer graphics, video games, and virtual worlds.
Energy Storage and Transfer Expert Profile
Professor of electrical and computer engineering with over twenty-five years of experience in materials science, systems engineering and design of microelectronics.
Vehicle Sensor & Electronics Expert Profile
Independent consultant and former professor of technical product management with decades of industry experience in automotive sensors, electronics, and systems.
Naval and Underwater Drones Expert Profile
Consultant with thirty years of software development experience designing products from autonomous underwater robots to cable modems and set-top boxes.
Space and Satellite Systems Expert Profile
Computer science professor with specialized expertise in RF signals and antennas, GPS, communication satellites, and information security.
Smartphone Software & Apps Expert Profile
Consultant with two decades of experience developing software and mobile apps for Android, Linux, Windows, and real-time operating systems.
Video Encoding & Streaming Expert Profile
PhD electrical engineer and data communications expert with three decades of industry and research experience in DSP, video and image encoding, and data compression.
Optical Systems and Interfaces Expert Profile
Innovative physicist with decades of experience in electro-optical systems design and significant expertise in low noise circuits and optical instruments and measurements.
High-Performance Computing Expert Profile
Professor of electrical and computer engineering and expert in architectural paradigms and technologies for high-performance computing and distributed computing.
Analog and Digital Electronics Design Expert Profile
Electrical engineer with more than thirty years of hands-on experience designing real-time systems and embedded software for commercial and military applications.
Fault Tolerant Computing Expert Profile
Professor with decades of experience in systems design and and expertise in bio-robotics, medical devices, actuators, and fault tolerant computing.
DSP and Data Compression Expert Profile
Consultant and professor of electrical and computer engineering with twenty issued U.S. patents on digital signal processing and digital receiver technologies.
Global Positioning Systems Expert Profile
Electrical engineer with substantial experience in the design of GPS and navigation systems, including DSP and image processing, in military and civilian applications.
TCP/IP Internet Protocols Expert Profile
Systems engineer with decades of hands-on experience in the design and implementation of Internet-connected products using WiFi, cellular, and other protocols
Smart Grid Electrical Power Expert Profile
Director of one university research lab that supports NASA and another that prototypes smart grid / energy, smart roads, and other smart city projects.
Mechanical-Electrical-Software Expert Profile
Engineering consultant with hands-on industry experience in mechanical and electrical design as well as software and firmware development and testing.
Android & iOS Mobile Apps Expert Profile
Computer scientist and inventor with decades of successful software and app creation for a variety of platforms, including Android, iOS, MacOS and Windows.
Settop On-Screen Guide & DVR Expert Profile
Embedded computing pioneer with thirty years of experience designing electronics and firmware, notably for DVR-capable satellite TV receivers.
Ultrasound Medical Imaging Expert Profile
Former professor and materials scientist whose areas of specialized expertise includes electronics and MEMS sensor design as well as signal processing.
Video Game Computer Graphics Expert Profile
Computer science professor and consultant with thirty years of experience in the software industry and hands-on video game design experience.
GPS & Navigation Systems Expert Profile
Engineer and product manager with twenty five years of work at the leading-edge of agriculture, automotive, and marine navigation and geolocation technologies including GPS/GNSS.
Microprocessor Design Expert Profile
Professor of electrical and computer engineering with years of industry experience in the design of microprocessors for infotainment and multimedia systems.
FPGA and Semiconductor Design Expert Profile
Electrical engineering consultant specializing in the design of microcontroller-based systems, especially embedded control systems utilizing wireless communications.
Audio Signal Processing Expert Profile
Forty years of academic and engineering experience in computer science, software development, and especially signal processing for audio and music.
Communications System Expert Profile
Electrical engineering professor with extensive experience in industry and specialized knowledge in error-correcting codes, image processing, and audio data compression.
Mobile & Wireless Networks Expert Profile
Professor of electrical engineering and an award-winning innovator in the areas of wireless communication systems and mobile networks who has testified as an expert witness.
Cellular Communications Expert Profile
Independent engineering consultant in the design of both electronics and software with a formal education in electrical and mechanical engineering.
Professor of electrical engineering and an award-winning innovator in the areas of wireless communication systems and mobile networks who has testified as an expert witness.
Forty years of academic and engineering experience in computer science, software development, and especially signal processing for audio and music.
Professor of electrical engineering who spent two decades researching and inventing algorithms at the intersection of acoustics, digital signal processing, and machine learning.
Professor with decades of experience in systems design and and expertise in bio-robotics, medical devices, actuators, and fault tolerant computing.
Former professor of computer engineering with expertise in biometric systems and technologies and a leading authority in fingerprint identification technologies.
Electrical engineering consultant specializing in the design of microcontroller-based systems, especially embedded control systems utilizing wireless communications.
Electrical engineer with substantial experience in the design of GPS and navigation systems, including DSP and image processing, in military and civilian applications.
Engineer and product manager with twenty five years of work at the leading-edge of agriculture, automotive, and marine navigation and geolocation technologies including GPS/GNSS.
Professor of electrical and computer engineering and expert in architectural paradigms and technologies for high-performance computing and distributed computing.
Professor of computer science and applied mathematics with expertise in cloud computing architectures for data-intensive and artificial intelligence applications.