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For the Inventor, By the Inventor

Seoul, South Korea

Chang-Sik Choi

This inventor holds 59 USPTO granted patents and 10 published patent applications, primarily in Sidelink Positioning. Top assignees: Qualcomm Incorporated, Other. Active years: 2022-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chang-Sik Choi. Retrieved from https://idiyas.com/inventor/chang-sik-choi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 59 

% Patents Active = 94.9

Average Co-Inventor Count = 3.6

ph-index = 2

Forward Citations = 21(Granted Patents)

Forward Citations (Not Self Cited) = 13(Dec 10, 2025)


Location History:

  • Hillsborough, NJ (US) (2022 - 2023)
  • Seoul, KR (2022 - 2024)

Company Filing History:

goldMedal58 out of 44,897 
 
Qualcomm Incorporated
 patents
silverMedal1 out of 834,513 
Other
 patents

Years Active: 2022-2026

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Areas of Expertise:
Sidelink Positioning
Vehicle Localization
Pedestrian Positioning
Wireless Nodes
Ranging Techniques
Channel Occupancy
Group-Based PRS
Dynamic Group Formation
Non Line-of-Sight
Map Data Utilization
Sensor Fusion
Timing Determination
59 patents (USPTO):Explore Patents
1. 12707414 - Sidelink-assisted positioning (2026-08-11),
2. 12634988 - Limiting spatial range of channel occupancy sharing in unlicensed spectrum via hop counting (2026-05-19),
3. 12571872 - Sidelink-assisted positioning (2026-03-10),
4. 12562868 - Low-latency opportunistic channel occupancy time sharing (2026-02-24),
5. 12307902 - Cluster-based approach to positioning of vehicles in vehicle platooning or autonomous trucking (2025-05-20),
6. 12301487 - Environment-aware positioning reference signal (PRS) (2025-05-13),
7. 12262346 - Group-based PRS broadcast for sidelink positioning (2025-03-25),
8. 12245256 - Optimization of ranging sessions initiated by vehicle and pedestrian UES (2025-03-04),
9. 12207161 - Improving sidelink positioning via messaging between wireless nodes (2025-01-21),
10. 12177812 - Techniques for selecting resources from resource maps obtained from nearby devices (2024-12-24),
11. 12160845 - Vehicle-to-pedestrian positioning with joint localization in vehicles (2024-12-03),
12. 12133192 - Sidelink positioning: switching between round-trip-time and single-trip-time positioning (2024-10-29),
13. 12127158 - Group-based positioning design in asynchronous vehicular networks (2024-10-22),
14. 11991662 - Positioning reference signal adaptation in distributed ranging system (2024-05-21),
15. 11991109 - Positioning system to leverage map data collected by user equipment (2024-05-21),

Certainly! Here is the article about inventor Chang-Sik Choi:

Title: Innovator Spotlight: Chang-Sik Choi - Pioneering Wireless Communication Technologies

Introduction:

Chang-Sik Choi, a prolific inventor hailing from Seoul, South Korea, has made significant contributions to the field of wireless communication technologies. With an impressive portfolio of 44 patents, Choi's innovative solutions have reshaped the landscape of distributed device management and positioning systems.

Latest Patents:

Choi's recent patents showcase his mastery in the realm of positioning methods and techniques for ranging and positioning of distributed devices. One of his groundbreaking inventions includes a distributed device management system that optimizes positioning sessions between multiple devices, enabling efficient transmission and measurement of positioning reference signals in both line-of-sight and non-line-of-sight scenarios.

Career Highlights:

Having worked at esteemed companies like Qualcomm Incorporated, Choi has honed his skills and expertise in developing cutting-edge wireless communication technologies. His relentless pursuit of innovation has not only led to the creation of revolutionary patents but has also cemented his legacy as a trailblazer in the industry.

Collaborations:

Throughout his career, Choi has collaborated with esteemed professionals in the field, including Kapil Gulati and Junyi Li. This collaborative spirit underscores Choi's commitment to fostering innovation through synergistic partnerships and knowledge sharing.

Conclusion:

In conclusion, Chang-Sik Choi stands as a visionary inventor whose pioneering work continues to push the boundaries of wireless communication technologies. With a keen focus on optimizing device management and enhancing positioning accuracy, Choi's patents exemplify excellence in innovation and technological advancement. His remarkable contributions have undoubtedly left an indelible mark on the industry, inspiring future generations of inventors to strive for greatness in the ever-evolving world of wireless communication.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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