Expert Witness – Electrical, Telecom, Cellular, RF Engineering Blog

How AT&T, T-Mobile, and Verizon Format CDRs Differently and How It’s Presented in Litigation

AT&T, T-Mobile, and Verizon CDRs can differ in fields, timestamps, and presentation. This guide explains how those differences affect litigation review.
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Cellular Protocol Timing: What Message Sequencing Shows in Patent Disputes

An outline of how cellular message order, timers, and state transitions can be analyzed in patent disputes using technical records and uncertainty controls.
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RF Hardware Analysis in Patent Infringement Cases

RF hardware analysis connects patent claims, accused circuitry, teardown records, RF measurements, and uncertainty limits in patent disputes.
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Speed and Stop Analysis in Rideshare Cases: What the GPS Data Shows

GPS speed and stop evidence in rideshare cases can be evaluated through timestamps, sampling intervals, location uncertainty, and trip-record cross-checks.
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UTC Timestamps in CDRs: How Timezone Conversion Errors Affect CDR Interpretation in Litigation

UTC timestamps in CDRs can shift litigation timelines when timezone, DST, platform display, and source-record assumptions are not documented clearly.
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GPS evidence animation in rideshare assault cases

GPS evidence animation can organize rideshare records, timestamps, uncertainty, and source artifacts into a traceable visual timeline for technical review.
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Location Uncertainty in GPS Data: What Every Rideshare Attorney Needs to Know

GPS errors can shift crash narratives in cities; learn why “the dot” drifts and how to use data.
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What Are Call Detail Records and What Do They Show in Court?

Call detail records can help reconstruct communication timing, tower activity, and messaging patterns, but they do not show content, active use, or exact location.
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Rideshare receipts as evidence: GPS and event data

Rideshare receipts show trip summaries, but expert review compares exports, GPS accuracy, time zones, app logs, and device records before drawing conclusions.
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Rideshare GPS Records in Evidence: What Data Shows

Rideshare GPS records can help reconstruct app-based trip activity, but forensic review depends on source files, timing, retention, and uncertainty limits.
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RF Hardware Analysis in Patent Infringement Cases

RF hardware analysis compares claim elements with device versions, teardown findings, controlled measurements, firmware, and calibration records.
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The Difference Between Cell Site Location and GPS Location in CDRs

CDR location fields may identify cell tower infrastructure rather than GPS handset position. This article explains record limits, mapping nuance, and uncertainty.
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