Inventor
TIAN ZHENFU
US7 patents
Patents
7 patentsUS11770634B1Sep 26, 2023
Trimming control circuit for current integration ramp DAC settling assist circuit
OMNIVISION TECH INC5 citations74
US11722801B1Aug 8, 2023
Ramp settling assist circuit in local ramp buffer circuit
OMNIVISION TECH INC2 citations72
US12034368B1Jul 9, 2024
Image sensors with improved negative pump voltage settling, and circuitry for the same
OMNIVISION TECH INC2 citations71
US12005890B2Jun 11, 2024
Column ASIL circuit for multiple bitlines in an image sensor
OMNIVISION TECH INC0 citations62
US12302025B2May 13, 2025
Deep N-well driven ramp buffer
OMNIVISION TECH INC0 citations61
US12526554B2Jan 13, 2026
Method to improve pixel failure coverage in global shutter image sensor
OMNIVISION TECH INC0 citations60
US11968468B2Apr 23, 2024
Calibration circuit for ramp settling assist circuit in local ramp buffer circuit
OMNIVISION TECH INC0 citations50