Wireless Communication / Technology (GPS, Cellular, Mobile) Expert Witnesses: 16

Baw Chng is a highly experienced Networking, Communications, Computer, and Software expert. He is an inventor with 11 patents in communication and networking technology. He is also a published author, public speaker, and USPTO Registered Patent Agent.

Experience: 24+ years of professional experience in telecom and networking. Consulted for Tier-1 national communication service providers and their strategic technology vendors. Experienced in engineering R&D, standards development, and patent assessment. Baw Chng has published papers, given public talks/presentations, provided expert consulting, written expert reports, provided deposition & testimonies as an expertness.

Ideal Client - Litigators who work on cases that involve complex technical issues, patent and intellectual property related issues, business contract cases that involve sophisticated technology.

Areas of Expertise

Technical Skills and Knowledge include:

• 3GPP and 3GPP2 families of cellular mobile broadband radio access and core network standards, small cells, femtocell, inter-technology handover and roaming
• IEEE 802.11 (Wi-Fi, mesh, infrastructure), 802.3 (Ethernet), 802.15 (WiMAX), 802.16 (WPAN) families of standards
• Network architecture, telecom system architecture
• Internet standards and protocols, TCP/IP, UDP, RTP, DHCP, DNS, ARP, GRE, etc.
• Internet-of-Things (IoT), M2M, LoRa, LoRaWAN, LTE Cat-M, NB-IoT
• Hotspot 2.0 / Passpoint (for Wi-Fi)
• IPsec, IKEv2, L2/L3 tunneling, NAT/NAPT (firewall)
• SAML, SAMLv2 federation; oAuth, oAuth 2.0 authentication; RADIUS, DIAMETER
• Network & device management, Broadband Forum TR-69 and IETF SNMP standards
• Software Defined Networking (SDN), Network Function Virtualization (NFV)
• Self-Organizing Network and Self-Optimizing Network (SON)
• Web Services, REST/JSON API design & implementation, HTTP
• Cloud computing, Amazon Web Services (AWS)
• Big Data, Avro, Parquet
• Plastic Optical Fiber (POF), Optical Networking
• Software architecture, Object-oriented design and programming, design patterns
• Go Lang, C, C++, Perl, LabVIEW, BASIC, Pascal, Unix shell scripting languages
• HTML, CSS, web design & development, web hosting, JavaScript, CGI Programming
• Operating systems (RTOS, various Unix/Linux variants, iOS, Android, etc.)
• Quality of Service (QoS), Fair Scheduling, Fair Queueing
• Interconnection networks and switching fabrics for parallel computers, network switches, and routers

Master's degree in Computer Science (MSCS), Bachelor's degrees in Electrical Engineering and Computer Engineering (BSEE, BSCoE), Washington University in St. Louis.

View BAWMAN LLC's Consulting Profile.

Burgess Forensics -Specialists in Computer Forensics, Electronic Discovery, Expert Witness, Data Recovery Since 1985

World-renowned leaders in the recovery of data from disk drives, diskettes, and other media. Burgess Computer Forensics knows all documents begin on a computer - a rich source for discovery. We begin with forensic imaging, finding hidden, deleted and corrupted files, images, email, Internet and file histories. Burgess explains results and computer technology in terms understood by layperson, judge and jury. Mr. Burgess has written and spoken widely and contributed the comprehensive Computer Forensics section to recently-released "Scientific Evidence in Civil and Criminal Cases, 5th Ed." by Moenssens, et al.

Services Offered:

• Digital and electronic media, forensic and evidentiary processes
• Computer forensics cases nationwide, testified as expert witness in many courts
• Digital discovery, e-discovery, electronic discovery
• Forensic imaging
• Password cracking
• Email and email address recovery
• File and image recovery
• Internet history recovery and Internet activity analysis
• Spyware and malware analysis
• Criminal defense work
• Steganographic analysis
• Expert testimony
• Project Management
  Our cases have included: Employment Law, Family Law, Intellectual Property, Software Design, Pornography, Child Pornography, Fraud, Military, Law Enforcement, Computer Crime, Harassment, Litigation Support, Embezzlement, Contract Dispute, Security Issues, Murder, Traffic Violation, Class Action, Product Liability, Patent Dispute, Stock Manipulation, American Indian, Medical Devices, Tax Evasion, Surveillance, Manufacturing, Public Works, Sabotage, Immigration, Mobile / Cell Phone, Smart Phones, PDAs, Public Education, Real Estate, Wrongful Termination, Labor Dispute, Insurance, Architecture, Stock Pricing, Stock Ownership and many more.

Joe Sremack, CFE, CISA,  is an expert in Enterprise IT Systems, Data Analysis, and Source Code Analysis and is a partner in Marcum's Valuations, Forensics, and Litigation Support practice. Joe leverages more than 20 years of data analytics and technology experience in assisting law firm, corporate, and government clients respond to large-scale data, software development, and enterprise systems issues. 

Joe brings a unique perspective and cutting-edge data solutions to assist his clients with dispute and investigation matters by incorporating advanced technologies and pragmatic solutions. His career encompasses advising clients on a variety of issues across various global jurisdictions where data and enterprise systems play a central role. These issues range from U.S. trade enforcement, securities litigation, consumer class action litigation, SEC/CFPB/FinCEN/CMS regulatory compliance and internal investigations. Joe is the author of Big Data Forensics and a frequent contributor to academic and commercial journals and conferences.

Litigation Support - Joe works with white collar, class action, and commercial litigation clients who are facing complex IT issues and issues involving large-scale, complex data questions. He has assisted clients across the US and over fifty countries. His services include thorough reporting, depositions, and trial testimony as needed.

Areas of Expertise:

Ray Horak provides litigation support as a consulting expert and testifying expert in cases involving the Telephone Consumer Protection Act (TCPA), product/service misrepresentation, contract disputes, and intellectual property (patent, copyright, and trademark/service mark infringement) disputes, as well as issues of taxes and fees allegedly owed to 911 districts and municipalities. Those cases have involved a broad range of technologies, including Automatic Telephone Dialing Systems (ATDSs), text messaging, cellular, DSL, E911, fax, PBX, prepaid cellular, push-to-talk (PTT), videoconferencing, VoIP, ringless voice mail and voice processing.

He also has performed numerous technical compliance reviews of the telephony systems that financial institutions and survey companies and their third party vendors employ in sales, collections, customer service and opinion polling. The objective of those engagements, several of which are ongoing, is to determine the specific nature and capacities (present, potential and theoretical) of the telephony systems (e.g., ATDS and PBX) and subsystems, the systems of record (i.e., databases), Customer Relationship Management (CRM) systems, Receivables Management (RM) systems, and any and all other peripheral systems, both premises- and cloud-based.

Ray is an Independent Consultant with a General Practice in Wireline and Wireless Telecommunications and Related Fields such as the Internet and Voice over IP. His 45 years’ experience includes management and executive positions with Southwestern Bell, CONTEL, and Executone. Ray authored the best-selling Communications Systems & Networks, (John Wiley & Sons), Telecommunications and Data Communications Handbook (Wiley-Interscience), and Webster’s New World Telecom Dictionary (Webster’s New World). Previously, Ray was Senior Contributing Editor for Newton’s Telecom Dictionary (12th through 21st Editions). He has written hundreds of technical white papers, case studies, articles, and columns for major print and electronic publications such as CommWeb, Computer Telephony, Datapro, Network World, The Prepaid Press, Teleconnect, and Telecom Reseller. Ray also has served as Technical Editor for several book-length works, including Deploying Secure 802.11 Wireless Networks with Microsoft Windows (Microsoft Press, 2003).

Mark McFarland, is a licensed and Board Certified Electrical and Telecommunications Engineer.  He provides expert consulting for plaintiff and defense counsel on civil and criminal cases nationwide. 

Mark's practice covers a wide range of cases, typically involving electrical, electronic, software, cellular, GPS, and telecommunications evidence. He has worked with lawyers in several fields including: wrongful death, personal injury, product liability, securities fraud, homicide, sex trafficking, medical malpractice, class action, insurance claims, patent litigation, contract disputes, and more.

Mark has worked dozens of cases and testified in court for civil and criminal trials.

Many of the cases he's worked have settled on his expert report.

Contact Mark at Discovery Engineering when you have litigation involving electrical, electronic, software, cellular, or GPS evidence. Licensed & Board Certified.  720-593-1640

For more information, please give me a call or visit my website.  

Have a fantastic day!   

Ian Cullimore, PhD, has over 30 years of hands-on Software and Hardware Development experience. He specializes in handheld devices, palmtops, PDAs, low power embedded systems, and Internet server technologies.

Background - Dr. Cullimore has held many employment and consulting posts as a software/hardware developer and inventor. He invented the world's first pocket PC which he licensed to Atari as the 'Portfolio'. He is also the co-inventor of the 'Poqet PC', acquired by Fujitsu. Dr. Cullimore is an experienced hi-tech CEO/CTO, yet still very hands-on with respect to architecture and coding. He has many years of experience both in the UK and California (Silicon Valley and LA) in companies ranging from small startups to large corporations, and in building and managing software and hardware teams.

An entrepreneur and start-up and young company specialist, Dr. Cullimore has helped to raise Angel and VC rounds, and has taken startups to exit. He has much experience interfacing with Boards, Investors, and sales/marketing/bizdev groups.

Litigation Support - Dr. Cullimore has a long track record as a Patent and Software / Hardware Expert Witness. His experience includes 30 cases, 19 written Expert Reports, 10 Depositions, and 3 at trial. His services are available to attorneys for both plaintiff and defendant.

Areas of Expertise:

Dr. Joseph Greenfield is the Vice President and Chief Forensic Examiner with Maryman & Associates. He is a renowned Computer Forensics Expert with over 15 years of investigative experience, including cyber breach investigations, employee misconduct, and email recovery and analysis. 

Dr. Greenfield is also an Associate Professor of Information Technology Practice at the Viterbi School of Engineering at the University of Southern California, where he authored both the undergraduate cybersecurity and digital forensics programs. In 2014, the Ponemon Institute ranked USC as 6th in the nation for “Best Schools for Cybersecurity” and the highest ranked on the West Coast. In 2019, he co-created an interdisciplinary bachelor's degree in Intelligence and Cyber Operations, now a part of the USC Political Science and International Relations Department in the Dornsife College of Letters, Arts and Sciences.

Litigation Support - Dr. Greenfield has over 15 years of experience in digital forensics. He has testified for both plaintiff and defense in civil matters in state, federal, and international courts. He has examined over 2,000 pieces of digital evidence and worked on over 1,000 cases. He has also provided expert testimony in criminal matters.

Areas of Expertise:

 Dr. Greenfield completed his Ph. D. in Computer Science at the University of Rhode Island, where his research focused on parallel processing of all live files while creating a forensic bitstream image.

Jacob Sharony, PhD, MBA, has over 25 years of experience in Mobile and Wireless Technologies. He is currently an adjunct professor at Columbia University, teaching wireless technologies and applications. He also served as a faculty member of the electrical and computer engineering department and director of the Center of Excellence in Wireless and Information Technology at Stony Brook University. Dr. Sharony held engineering and management positions in diverse technology disciplines at Time Warner Cable, Motorola, BAE Systems, NEC Research Institute, and IBM Research. He has over 50 US patents (pending and issued) and has served on several government expert panels.

Litigation Support - Dr. Sharony provides Patent and Class Action litigation support and expert consulting in mobile and wireless technologies. This includes patent infringement and invalidity analysis, FRAND analysis, writing expert reports, and deposition, and testimony in court. His deep knowledge of target markets, including telecom, healthcare, logistics, transportation, government, hospitality, mobile commerce and supply chain management, combined with extensive expertise in wireless and mobile technologies ensure innovative and successful solutions.

Areas of Expertise:

View Dr. Sharony's Consulting Profile.

Bert Schiettecatte, MSc/CS, MA/MST, is a Computer Scientist and Software and Hardware Engineer with over 20 years of experience. He is the Founder of Percussa, a pro-audio consumer electronics company with a focus on Audio and Video Processing Applications, Consumer Electronics, and Proprietary Trading.

Litigation Support - Mr. Schiettecatte has been retained for Software / Hardware Engineering and Electronics cases in states throughout the nation. His services include thorough reporting, depositions, and trial testimony as needed. See CV for Litigation Case List.

Areas of Expertise:

Education: Master in Computer Science from Brussels Free University (VUB, summa cum laude) and Master of Arts in Music, Science and Technology from Stanford University's Center for Computer Research in Music and Acoustics (CCRMA).

Dr. Kanellakopoulos is a technology leader with 25+ years of experience in R&D and engineering management in both academia (former UCLA Professor of Electrical Engineering) and industry, and a seasoned expert witness with a perfect success record.

He has designed and built telecom products such as DSL and Carrier Ethernet hardware and software, as well as a prototype fully automated electric vehicle. He has conducted applied research in adaptive control of nonlinear systems, with applications to automotive driver assistance systems (adaptive cruise control, blind-spot monitoring, vehicle collision avoidance) and active suspensions. He has significant experience with international telecommunication standards (ITU-T SG15/Q4), and has directed collaborative projects with several automotive/truck manufacturers and vendors (Ford, Mercedes-Benz, DaimlerChrysler, Freightliner, Gentex, Visteon).

He has significant experience as an expert witness in patent infringement (including IPR) and product liability cases in the automotive and telecommunication areas; the vast majority of his cases have resulted in a win or a very favorable settlement for his clients. In 2017, he was the lead expert witness in a product liability case against Nissan that resulted in a $25M jury award for his clients; this decision was later upheld on appeal. His deep technical expertise allows him to analyze patents and products in detail, and explain clearly (in expert reports, depositions, and court testimony) the main issues that the judge and jury need to internalize in order to comprehend the essence of the case.  His extensive educational experience allows him to help judges and jurors understand the topic they are dealing with, instead of confusing them with unnecessary technical details.

After all, it takes excellent teaching skills and a deep understanding of a complex technical concept to convey the essence of that concept to non-experts without talking down to them.

View Dr. Kanellakopoulos's Consulting Profile.

Dr. George Edwards, Ph.D. is an expert in Computer Software, Internet Applications, Web Technologies, Mobile Phone/Tablet Applications, Digital Video and Multimedia, Medical and Embedded Software, and Aerospace/Defense Systems. He has more than a decade of experience as a scientist, engineer, and technical consultant to academic research labs, government agencies, technology companies, and attorneys.

Dr. Ewards has authored dozens of articles and papers related to software engineering for scientific journals and industry magazines. He is listed as a co-inventor on two pending patent applications for novel software technology and has served as a software expert witness in patent litigation matters.

• Intellectual property and patent infringement
• Software design/source code audit and review
• Non-performance claims
• Expert witness and depositions

Expert Technologies :

• Programming languages & platforms: Java, C/C++, C#, Perl, Python, PHP, .NET, WinForms, WPF, Visual Studio, Eclipse, Java EE, CORBA
• Internet and web: JavaScript, AJAX, Node.js, Ruby, HTML, XML, CSS, ASP.NET
• Mobile devices & applications: Android, iOS, iPhone, Windows Mobile, Windows Phone, BlackBerry, Palm OS, Java ME
• Multimedia: MPEG, SVG, DVR, Silverlight, Flash
• Operating systems & servers: UNIX, Linux, Windows, Mac OS
• Networking: IMAP, POP, SMTP, DNS, TCP/IP, HTTP
• Databases: RDBMS, SQL, MS SQL Server, MS Access, Oracle, MySQL
• Project management & development methods: Kanban, Lean software development, agile, object-oriented (OO), aspect-oriented programming (AOP), component-based development, COTS integration, requirements engineering, spiral model, UML

View Consulting Profile.

J. Armand Musey, CFA, JD/MBA, founder and president of Summit Ridge Group, LLC, provides expert witness testimony for the Telecom, Media, and Satellite Industries. Mr. Musey is a highly regarded financial analyst with expertise in Asset Valuation, Business Valuation, Financial Analysis of Economic Damages, and Financial Scenario Analysis.

Mr. Musey also has significant experience in corporate governance and investment research practices. He offers litigation support for clients with complex financial analysis or valuation projects. His background also includes Wall Street research methods and practices on behalf of defendants in insider trading cases.

Mr. Musey's industry knowledge, financial expertise, and extensive writing experience allow him to expediently craft well-argued independent written direct testimony documents that withstand scrutiny in depositions and during courtroom cross-examination. Prior expert witness experience and years of communicating with investors of all types have honed his skills at orally communicating his industry knowledge and financial expertise. Moreover, Mr. Musey's legal background facilitates his ability to communicate with legal professionals, understand the legal relevance of case facts, and efficiently read legal documents.

Areas of Expertise Include:

• Industry and Business
  • Broadband Communications
  • Broadcasting
  • FCC Spectrum Licenses (including orbital slot valuation and wireless spectrum valuation)
  • Satellite Communications Industry and Related Media and Telecommunications Topics
  • Wireless Communications
  • Wireless Spectrum
• Financial and Economic
  • Asset Valuation
  • Business Valuation
  • Financial Analysis of Economic Damages
  • Financial Scenario Analysis
• Other
  • Corporate Governance
  • Investment Research Practices - including accepted used of information sources and relationships with company management

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Dr. Tal Lavian holds a Ph.D. from the University of California, Berkeley, in Computer Science, specializing in Networking and Communications. He is an expert in network communications, telecommunications, Internet Protocols (TCP/IP), LAN/WAN, Streaming media, VoIP, mobile wireless, and Internet/Web technologies. He has over 30 years of experience, has invented over 120 patents, and has co-authored over 25 scientific publications. For 20 years, Dr. Lavian has researched, studied, and lectured at UC Berkeley Engineering. He has served as an industry fellow and lecturer with UC Berkeley’s Industrial Engineering IEOR, Berkeley Engineering’s SCET, UC Berkeley’s start-up accelerator, and SkyDeck, as principal investigator for CRadar.Ai and CTO for Aybell.

Areas of Expertise:

Network Communications - Telecommunications - Internet Protocols (TCP/IP) - VoIP - Streaming Media - Mobile Wireless:

• Communication Networks: Internet protocols; TCP/IP suite, TCP, UDP, IP, Ethernet, 802.3, network protocols, network software applications, data link, network, and transport layers (L2, L3, L4), packet switching, data center network architecture.
• Mobile Wireless: Wi-Fi, 802.11, Bluetooth, MAC, PHY, Wireless LAN (WLAN). Cellular systems, SMS, instant messaging (chat), mobile devices, and smartphones.
• Internet/Cloud: Internet Technologies, Web applications, HTTP, e-mail, SMTP, POP, IMAP, Java, C/C++, file transfer FTP, client-server, cloud computing, distributed computing.
• Routing/Switching: LAN, WAN, VPN, routing protocols, RIP, BGP, MPLS, OSPF, multicast, DNS, QoS, network infrastructure, and network communication architectures.
• VoIP/Streaming Media: PSTN, voice, data, circuit switching, IP telephony, VoIP, SIP, RTP, video/audio conferencing, streaming media.

Dr. Lavian brings both hands-on and academic experience to his work in Network communications, Internet Protocols, design, and architecture. 

Litigation Support:

Dr. Lavian offers expert witness services and provides courtroom presence, clear testimony, and an ability to effectively distill complex concepts into understandable basics and commonsense.

• He has extensive experience rendering reports and testifying in Federal, IPR, and ITC cases in over 140 patent-related cases.
• Past cases have involved leading companies such as Google, Microsoft, Amazon, LinkedIn, Avaya, T-Mobile, AT&T, Ericsson, Sprint, Cisco Systems, Juniper Networks, Polycom, Motorola, LG, WhatsApp, Instagram, ZTE, Huawei, Facebook, and Apple.

View Dr. Lavian's Consulting Profile.

USAForensic is a boutique state-of-the-art forensics company with full-time labs in Phoenix, Arizona and Detroit, Michigan. Our booking office is on the east coast. This helps with an earlier start each day and with overseas cases.

Specializing in forensic Audio, Video, Cell Phones, Computers Photography & ”Cell Tower tracking” debunking.  USAForensic is court certified in Federal, US Military, US District, many State and county courts throughout the United States. International cases are not uncommon. Mr. Neumeister has worked in 23 countries over the past 40 years.

Clients range from the largest Law firms to private firms, large corporations, the Department of Defense, government agencies, advocacy groups, the DOJ to the innocence project.

Technology is flying past the court system. We’re here to work with attorneys to understand how to deal with digital or analog evidence, how to challenge it or how to get it admitted into evidence.

We prefer to work in the background assisting attorneys, even writing out Daubert 702 & 902 issues regarding other parties evidence submissions.

In a recent Federal Daubert hearing USAForensic worked with DOD JAG attorneys to get police cell tower tracking ruled inadmissible. The federal judge rule police cell tower tracking as “Garbage in, Garbage out”. 

Not a verifiable science, not peer reviewed, no scientific white-paper to support its use.

Over 600 cases in the past 3 years. From the very highest profile to simple straightforward forensic cell phone extractions or video and audio clarification for court use.

To us Data is Data & takes no side, but it has to be verifiable data.

James T. Geier is an independent consultant, author, and entrepreneur with 40 years experience planning, designing, analyzing and implementing Mobile Devices, Communications Systems, and Wireless Networks. Mr. Geier is the author of over a dozen books on mobile and wireless topics including, Designing and Deploying 802.11n Wireless Networks (Cisco Press), Implementing 802.1X Security Solutions (Wiley), Wireless Networking Handbook (New Riders), and Network Re-engineering (McGraw-Hill). Mr. Geier has been an active participant within IEEE standards organizations, such as the IEEE 802.11 Working Group, and the Wi-Fi Alliance. He has served as Chairman of the IEEE Computer Society, Dayton Section, and various conferences.

Litigation Support - James Geier has been an expert witness, written expert reports, been deposed, and testified in court as an expert during numerous patent litigation cases involving communications systems and protocols, Bluetooth, Wi-Fi, security, encryption, authentication, IoT, transmit power control, network addressing, transmission protection (CTS-to-self), transmission priority, quality of service (QoS), frequency hopping, multi-modal radios, OFDM, application data updates, sensor networks, and location technologies. Mr. Geier has provided the following services dealing with patent litigation:

• Patent Invalidity / Validity Analysis
• Infringement / Non-infringement Analysis
• Patent Claims Interpretation and Analysis / Claim Construction
• Product Software and Firmware Review and Analysis
• Prior Art Research and Analysis

View James Geier's Consulting Profile.