This inventor holds 1 USPTO granted patent and 3 published patent applications. Top assignees: Hyundai Motor Company, Kia Corporation. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 20,399 
1 out of 5,883 
Years Active: 2026
Title: Chang Hun Jung: Advancing Vehicle Access Security
Introduction
Chang Hun Jung is an inventor based in Incheon, South Korea. His patent work addresses security in passive keyless entry systems, which allow drivers to access and start a vehicle using a smart key.
Latest Patents
Jung is associated with one patent, titled “Apparatus and Method for Distinguishing Relay/Replay Signal in Passive Keyless Entry System.” The invention describes a vehicle PKE method that uses random numbers, timestamps, and hash values to help identify relay or replay attacks. The system compares timestamp differences against thresholds and checks hash values before deciding whether to allow vehicle access and startup. Jung is associated with 1 patent.
Career Highlights
Jung’s listed company affiliations include Kia Corporation and Hyundai Motor Company, two major automotive companies in South Korea.
Collaborations
Jung’s listed coworker is Seung Wook Park. Their shared work is associated with technology for distinguishing relay and replay signals in vehicle keyless-entry systems.
Conclusion
Chang Hun Jung’s patent focuses on strengthening passive keyless entry security through timestamp and hash-based checks, reflecting the importance of protecting connected vehicle access systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile