Assignee
ZHEJIANG DAHUA TECHNOLOGY CO
CN·229 granted patents·36 pending applications·191 citations·filing 2013–2025
Top patents by PatentIndex Score
265 records- 0193USD968498SCameraZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted Nov 1, 2022·16 cites·1 claims
- 0292US11600127B2Systems and methods for controlling access to an entranceZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted Mar 7, 2023·8 cites·20 claims
- 0392US11354827B2Methods and systems for fusion display of thermal infrared and visible imageZHEJIANG DAHUA TECHNOLOGY CO·Filed 2020·Granted Jun 7, 2022·3 cites·20 claims
- 0490US12100162B2Method and system for obtaining and processing foreground image and background imageZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted Sep 24, 2024·2 cites·15 claims
- 0590US11947091B2Zoom lens and optical device having the sameZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted Apr 2, 2024·3 cites·20 claims
- 0689US11301668B2Methods and systems for face alignmentZHEJIANG DAHUA TECHNOLOGY CO·Filed 2020·Granted Apr 12, 2022·2 cites·19 claims
- 0788US11647176B2Methods and systems for camera calibrationZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted May 9, 2023·3 cites·18 claims
- 0888US11455709B2Methods and systems for image processingZHEJIANG DAHUA TECHNOLOGY CO·Filed 2020·Granted Sep 27, 2022·4 cites·18 claims
- 0987US11482256B2Systems and methods for video replayingZHEJIANG DAHUA TECHNOLOGY CO·Filed 2020·Granted Oct 25, 2022·6 cites·20 claims
- 1086US12087010B2Systems and methods for lane detectionZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted Sep 10, 2024·2 cites·18 claims
- 1186US11575838B2Systems and methods for determining a target field angle of an image capturing deviceZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted Feb 7, 2023·3 cites·17 claims
- 1286US10495860B2Zoom lens systemZHEJIANG DAHUA TECHNOLOGY CO·Filed 2016·Granted Dec 3, 2019·6 cites·17 claims
- 1385US11651229B2Methods and systems for face recognitionZHEJIANG DAHUA TECHNOLOGY CO·Filed 2020·Granted May 16, 2023·6 cites·20 claims
- 1485US11057635B2Methods and systems for video synopsisZHEJIANG DAHUA TECHNOLOGY CO·Filed 2019·Granted Jul 6, 2021·8 cites·18 claims
- 1584US11743419B2Method and system for identifying light source and application thereofZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted Aug 29, 2023·2 cites·20 claims
- 1683US11514680B2Methods and systems for traffic monitoringZHEJIANG DAHUA TECHNOLOGY CO·Filed 2020·Granted Nov 29, 2022·2 cites·17 claims
- 1783US11320631B2Lens system and imaging deviceZHEJIANG DAHUA TECHNOLOGY CO·Filed 2020·Granted May 3, 2022·3 cites·18 claims
- 1881US11232545B2Systems and methods for image processingZHEJIANG DAHUA TECHNOLOGY CO·Filed 2020·Granted Jan 25, 2022·2 cites·18 claims
- 1981USD926857SCameraZHEJIANG DAHUA TECHNOLOGY CO·Filed 2018·Granted Aug 3, 2021·17 cites·1 claims
- 2080US10742936B2Methods and systems for object monitoringZHEJIANG DAHUA TECHNOLOGY CO·Filed 2019·Granted Aug 11, 2020·2 cites·16 claims
- 2180USD857078SGun cameraZHEJIANG DAHUA TECHNOLOGY CO·Filed 2016·Granted Aug 20, 2019·20 cites·1 claims
- 2278USD884770SGun cameraZHEJIANG DAHUA TECHNOLOGY CO·Filed 2019·Granted May 19, 2020·16 cites·1 claims
- 2377US11764569B2Electrical surge protection circuitsZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted Sep 19, 2023·3 cites·19 claims
- 2477US11113840B2Systems and methods for detecting objects in imagesZHEJIANG DAHUA TECHNOLOGY CO·Filed 2019·Granted Sep 7, 2021·3 cites·19 claims
- 2577US11048961B2Locating method and systemZHEJIANG DAHUA TECHNOLOGY CO·Filed 2019·Granted Jun 29, 2021·2 cites·20 claims
- 2677US10931831B2Intercom devices and methods for adaptively adjusting power consumption thereofZHEJIANG DAHUA TECHNOLOGY CO·Filed 2019·Granted Feb 23, 2021·2 cites·20 claims
- 2776US11754150B2Belt driven system and tensioner thereofZHEJIANG DAHUA TECHNOLOGY CO·Filed 2019·Granted Sep 12, 2023·3 cites·6 claims
- 2875US10861177B2Methods and systems for binocular stereo visionZHEJIANG DAHUA TECHNOLOGY CO·Filed 2016·Granted Dec 8, 2020·3 cites·20 claims
- 2975US9912905B2Method and device for implementing analog high-definition image capturingZHEJIANG DAHUA TECHNOLOGY CO·Filed 2013·Granted Mar 6, 2018·3 cites·8 claims
- 3074US11055831B2Methods and systems for filling light for video imagesZHEJIANG DAHUA TECHNOLOGY CO·Filed 2019·Granted Jul 6, 2021·2 cites·20 claims
- 3173US11605220B2Systems and methods for video surveillanceZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted Mar 14, 2023·2 cites·19 claims
- 3273US10805588B2Methods, systems, and media for image white balance adjustmentZHEJIANG DAHUA TECHNOLOGY CO·Filed 2017·Granted Oct 13, 2020·2 cites·20 claims
- 3372US11860516B2Surveillance deviceZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted Jan 2, 2024·0 cites·12 claims
- 3472US11741750B2Methods and systems for face alignmentZHEJIANG DAHUA TECHNOLOGY CO·Filed 2022·Granted Aug 29, 2023·0 cites·20 claims
- 3571US11835847B2Surveillance deviceZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted Dec 5, 2023·0 cites·18 claims
- 3671US11436702B2Systems and methods for super-resolusion image reconstructionZHEJIANG DAHUA TECHNOLOGY CO·Filed 2020·Granted Sep 6, 2022·1 cites·20 claims
- 3771USD820336SHalf-ball cameraZHEJIANG DAHUA TECHNOLOGY CO·Filed 2016·Granted Jun 12, 2018·14 cites·1 claims
- 3870US11429588B2Methods and systems for processing log dataZHEJIANG DAHUA TECHNOLOGY CO·Filed 2019·Granted Aug 30, 2022·1 cites·17 claims
- 3970US10979492B2Methods and systems for load balancingZHEJIANG DAHUA TECHNOLOGY CO·Filed 2019·Granted Apr 13, 2021·1 cites·20 claims
- 4070US10466334B2Methods and systems for sound source locatingZHEJIANG DAHUA TECHNOLOGY CO·Filed 2019·Granted Nov 5, 2019·2 cites·20 claims
- 4169US11240443B2Systems and methods for image acquisitionZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted Feb 1, 2022·1 cites·20 claims
- 4269US11201442B2Power over ethernet system, device, and methodZHEJIANG DAHUA TECHNOLOGY CO·Filed 2019·Granted Dec 14, 2021·1 cites·17 claims
- 4368US10671857B2Methods and systems for video surveillanceZHEJIANG DAHUA TECHNOLOGY CO·Filed 2016·Granted Jun 2, 2020·2 cites·20 claims
- 4467US11715209B2Locating method and systemZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted Aug 1, 2023·0 cites·20 claims
- 4567US10977498B2Methods and systems for video processingZHEJIANG DAHUA TECHNOLOGY CO·Filed 2019·Granted Apr 13, 2021·1 cites·11 claims
- 4667US2026006343A1Systems and methods for image correctionZHEJIANG DAHUA TECHNOLOGY CO·Filed 2025·Application pending·0 cites
- 4766US12001399B2Systems and methods for storage medium managementZHEJIANG DAHUA TECHNOLOGY CO·Filed 2021·Granted Jun 4, 2024·1 cites·14 claims
- 4866US10719958B2Methods and systems for fusion display of thermal infrared and visible imageZHEJIANG DAHUA TECHNOLOGY CO·Filed 2016·Granted Jul 21, 2020·1 cites·18 claims
- 4965US12028598B2Methods and systems for identifying camera lensZHEJIANG DAHUA TECHNOLOGY CO·Filed 2023·Granted Jul 2, 2024·0 cites·18 claims
- 5065US2025086750A1Methods and systems for data processingZHEJIANG DAHUA TECHNOLOGY CO·Filed 2024·Application pending·0 cites
Showing the top 50 of 265 patent records by PatentIndex Score.
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