Zhenfu Tian

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San Jose, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Deep N-well driven ramp buffer
- Patent number 12,302,025
- Issue date May 13, 2025
- OmniVision Technologies, Inc.
- Shan Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image sensors with improved negative pump voltage settling, and cir...
- Patent number 12,034,368
- Issue date Jul 9, 2024
- OmniVision Technologies, Inc.
- Zhenfu Tian
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Column ASIL circuit for multiple bitlines in an image sensor
- Patent number 12,005,890
- Issue date Jun 11, 2024
- OmniVision Technologies, Inc.
- Zhenfu Tian
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Calibration circuit for ramp settling assist circuit in local ramp...
- Patent number 11,968,468
- Issue date Apr 23, 2024
- OmniVision Technologies, Inc.
- Hiroaki Ebihara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Trimming control circuit for current integration ramp DAC settling...
- Patent number 11,770,634
- Issue date Sep 26, 2023
- OmniVision Technologies, Inc.
- Zhenfu Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ramp settling assist circuit in local ramp buffer circuit
- Patent number 11,722,801
- Issue date Aug 8, 2023
- OmniVision Technologies, Inc.
- Hiroaki Ebihara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
DEEP N-WELL DRIVEN RAMP BUFFER
- Publication number 20250240550
- Publication date Jul 24, 2025
- OMNIVISION TECHNOLOGIES, INC.
- Shan Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DEEP N- WELL DRIVEN RAMP BUFFER
- Publication number 20240276124
- Publication date Aug 15, 2024
- OMNIVISION TECHNOLOGIES, INC.
- Shan Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD TO IMPROVE PIXEL FAILURE COVERAGE IN GLOBAL SHUTTER IMAGE SE...
- Publication number 20240089639
- Publication date Mar 14, 2024
- OMNIVISION TECHNOLOGIES, INC.
- Liang ZUO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRIMMING CONTROL CIRCUIT FOR CURRENT INTEGRATION RAMP DAC SETTLING...
- Publication number 20230336889
- Publication date Oct 19, 2023
- OMNIVISION TECHNOLOGIES, INC.
- Zhenfu Tian
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CALIBRATION CIRCUIT FOR RAMP SETTLING ASSIST CIRCUIT IN LOCAL RAMP...
- Publication number 20230336891
- Publication date Oct 19, 2023
- OMNIVISION TECHNOLOGIES, INC.
- Hiroaki Ebihara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
COLUMN ASIL CIRCUIT FOR MULTIPLE BITLINES IN AN IMAGE SENSOR
- Publication number 20230311859
- Publication date Oct 5, 2023
- OMNIVISION TECHNOLOGIES, INC.
- Zhenfu TIAN
- B60 - VEHICLES IN GENERAL