Inventor · disambiguated record
Tianhai Chang
Also filed as: CHANG TIANHAI
16 granted patents·8 pending applications·14 citations·filing 2004–2025
86Inventor score
Top patents by PatentIndex Score
24 records- 0184US10547378B2Optical fiber status detection method, optical supervisory unit, and stationHUAWEI TECH CO LTD·Filed 2017·Granted Jan 28, 2020·5 cites·12 claims
- 0267US12055712B2Multi-focal-plane image generation apparatus, head-up display apparatus, related method, and deviceHUAWEI TECH CO LTD·Filed 2022·Granted Aug 6, 2024·0 cites·20 claims
- 0367US2025373356A1Communication method and related apparatusHUAWEI TECH CO LTD·Filed 2025·Application pending·0 cites
- 0465US8817823B2Method and device for time synchronizationHUAWEI TECH CO LTD·Filed 2013·Granted Aug 26, 2014·2 cites·10 claims
- 0563US12429758B2Display apparatus and display systemSHENZHEN YINWANG INTELLIGENT TECHNOLOGY CO LTD·Filed 2022·Granted Sep 30, 2025·0 cites·20 claims
- 0661US7580635B2Method, apparatus and system for optical communicationsHUAWEI TECH CO LTD·Filed 2006·Granted Aug 25, 2009·3 cites·9 claims
- 0761US2025211338A1Optical receiving module, optical receiving device, and frequency adjustment methodHUAWEI TECH CO LTD·Filed 2025·Application pending·0 cites
- 0857US2025158717A1Transmission method and related deviceHUAWEI TECH CO LTD·Filed 2025·Application pending·0 cites
- 0957US2025193749A1Communication Method, Apparatus, and System, and Storage MediumHUAWEI TECH CO LTD·Filed 2025·Application pending·0 cites
- 1056US2024171270A1Optical communication system, vehicle, and industrial optical networkHUAWEI TECH CO LTD·Filed 2024·Application pending·0 cites
- 1155US7564881B2Optical transmission module with digital adjustment and the adjusting methodHUAWEI TECH CO LTD·Filed 2004·Granted Jul 21, 2009·4 cites·9 claims
- 1255US2024414460A1Optical distribution network apparatus and signal processing methodHUAWEI TECH CO LTD·Filed 2024·Application pending·0 cites
- 1354US2023388017A1Optical coupler, communication method, and communication systemHUAWEI TECH CO LTD·Filed 2023·Application pending·0 cites
- 1453US11711152B2Receiver, optical line terminal, and passive optical network systemHUAWEI TECH CO LTD·Filed 2022·Granted Jul 25, 2023·0 cites·20 claims
- 1553US11611816B2Service data processing method and deviceHUAWEI TECH CO LTD·Filed 2021·Granted Mar 21, 2023·0 cites·19 claims
- 1651US12360382B2Head-up display apparatus and head-up display methodSHENZHEN YINWANG INTELLIGENT TECHNOLOGY CO LTD·Filed 2022·Granted Jul 15, 2025·0 cites·20 claims
- 1751US2024236531A9Communication system, transmitter, and communication methodHUAWEI TECH CO LTD·Filed 2023·Application pending·0 cites
- 1848US10911137B2Optical amplifier apparatus, optical communications station, and optical communications systemHUAWEI TECH CO LTD·Filed 2020·Granted Feb 2, 2021·0 cites·20 claims
- 1946US12334984B2Optical transmitter and optical modulation methodHUAWEI TECH CO LTD·Filed 2022·Granted Jun 17, 2025·0 cites·19 claims
- 2045US11381335B2Method and apparatus for spectrum defragmentation, device, and systemHUAWEI TECH CO LTD·Filed 2019·Granted Jul 5, 2022·0 cites·20 claims
- 2139US10200771B2Service switching system and service switching methodHUAWEI TECH CO LTD·Filed 2017·Granted Feb 5, 2019·0 cites·18 claims
- 2235US10778570B2Network protection method, network node and systemHUAWEI TECH CO LTD·Filed 2017·Granted Sep 15, 2020·0 cites·20 claims
- 2333US11295096B2Automatic search method for a structural mode signal of a chipless RFID tagUNIV SOUTH CHINA TECH·Filed 2018·Granted Apr 5, 2022·0 cites·4 claims
- 2430US8380070B2Upgrading method, system and apparatus of low-density wavelength division multiplexing systemHUAWEI TECH CO LTD·Filed 2010·Granted Feb 19, 2013·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →