Jong-Uk Choi
20Patents
9h-index
32Co-inventors
75Inventor score
Filing activity: Sep 10, 1999 → Oct 28, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6839673B1 | Digital watermarking method and apparatus for audio data | Physics | 61 | Expired |
| US8677345B2 | System for creating virtual application, method for installing virtual application, method for calling native API and method for executing virtual application | Physics | 40 | Active |
| US7707422B2 | Method for embedding watermark into an image and digital video recorder using said method | Electricity | 29 | Active |
| US7140043B2 | Watermark embedding and detecting method by quantization of a characteristic value of a signal | Physics | 28 | Expired |
| US6975733B1 | Watermarking of digital images using wavelet and discrete cosine transforms | Electricity | 19 | Expired |
| US7447329B2 | Apparatus and method for producing a document verifiable for its forgery or alteration, and apparatus and method for authenticating the document | Electricity | 15 | Expired |
| US7594274B2 | Method of authenticating an application for personal digital assistant using a unique ID based on a personal computer and system using thereof | Electricity | 15 | Expired |
| US6940995B2 | Method for embedding and extracting text into/from electronic documents | Electricity | 11 | Expired |
| US7280669B2 | Digital image watermarking apparatus and method | Electricity | 11 | Expired |
| US8610709B2 | Method and apparatus for watermarking of 3D mesh model | Physics | 8 | Active |
| US7457957B2 | Apparatus and method for issuing and authenticating securities, etc. using digital watermarking | Electricity | 5 | Expired |
| US7386729B2 | Method of inserting/detecting digital watermark and apparatus for using thereof | Electricity | 3 | Expired |
| US9742783B2 | Method for sending contents including tracking information and apparatus thereof, and method for receiving content including tracking information and apparatus thereof | Electricity | 3 | Active |
| US9830433B2 | Method, system and device for enhancing business information security | Physics | 2 | Active |
| US9819494B2 | Digital signature service system based on hash function and method thereof | Electricity | 2 | Active |
| US9491147B2 | DRM content stream transmission apparatus, method, and transmission and reception system | Electricity | 2 | Active |
| US7395432B2 | Method of embedding/detecting digital watermark and apparatus for using thereof | Electricity | 1 | Expired |
| US11469879B2 | Text watermarking method and apparatus for hiding information into text documents | Electricity | 0 | Active |
| US11669500B2 | System and method for distributing data using block chain | Electricity | 0 | Active |
| US9818233B2 | Method and apparatus for automatically splitting object and method, apparatus, and system for registering file | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.