Inventor

ZHANG JOHN R

CA4 patents

⚠️ This page may combine multiple inventors who share the name “ZHANG JOHN R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GOOGLE INC

2 patents

US9183460B2Nov 10, 2015

Detecting modified images

GOOGLE INC9 citations82

US9251171B2Feb 2, 2016

Propagating image signals to images

GOOGLE INC0 citations40

REN YANSONG

1 patent

US8989376B2Mar 24, 2015

Method and apparatus for authenticating video content

REN YANSONG12 citations80

ZHANG JOHN R

1 patent

US8639040B2Jan 28, 2014

Method and apparatus for comparing videos

ZHANG JOHN R2 citations53