Ingemar J. Cox
70Patents
30h-index
22Co-inventors
88Inventor score
Filing activity: Jan 30, 1991 → Oct 28, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5930369A | Secure spread spectrum watermarking for multimedia data | Electricity | 666 | Expired |
| US5915027A | Digital watermarking | Electricity | 618 | Expired |
| US5848155A | Spread spectrum watermark for embedded signalling | Electricity | 442 | Expired |
| US6332194A | Method for data preparation and watermark insertion | Physics | 280 | Expired |
| US6069914A | Watermarking of image data using MPEG/JPEG coefficients | Electricity | 262 | Expired |
| US7058223B2 | Identifying works for initiating a work-based action, such as an action on the internet | Emerging Cross-Sectional Technologies | 254 | Expired |
| US6154571A | Robust digital watermarking | Electricity | 250 | Expired |
| US5359362A | Videoconference system using a virtual camera image | Electricity | 240 | Expired |
| US6208735A | Secure spread spectrum watermarking for multimedia data | Physics | 214 | Expired |
| US5363305A | Navigation system for a mobile robot | Physics | 208 | Expired |
| US5991426A | Field-based watermark insertion and detection | Electricity | 182 | Expired |
| US6282300A | Rotation, scale, and translation resilient public watermarking for images using a log-polar fourier transform | Electricity | 168 | Expired |
| US5696964A | Multimedia database retrieval system which maintains a posterior probability distribution that each item in the database is a target of a search | Emerging Cross-Sectional Technologies | 132 | Expired |
| US6278792A | Robust digital watermarking | Electricity | 129 | Expired |
| US8010988B2 | Using features extracted from an audio and/or video work to obtain information about the work | Electricity | 123 | Active |
| US8205237B2 | Identifying works, using a sub-linear time search, such as an approximate nearest neighbor search, for initiating a work-based action, such as an action on the internet | Electricity | 118 | Active |
| US6539475B1 | Method and system for protecting digital data from unauthorized copying | Electricity | 106 | Expired |
| US6108434A | Counteracting geometric distortions for DCT based watermarking | Physics | 104 | Expired |
| US6510234B1 | Method for increasing the functionality of a media player/recorder device | Electricity | 101 | Expired |
| US7216232B1 | Method and device for inserting and authenticating a digital signature in digital data | Electricity | 96 | Expired |
| US8020187B2 | Identifying works, using a sub linear time search or a non exhaustive search, for initiating a work-based action, such as an action on the internet | Electricity | 94 | Active |
| US6834345B2 | Method for data preparation and watermark insertion | Physics | 74 | Expired |
| US6996249B2 | Applying informed coding, informed embedding and perceptual shaping to design a robust, high-capacity watermark | Physics | 71 | Expired |
| US5383013A | Stereoscopic computer vision system | Electricity | 66 | Expired |
| US6738493B1 | Robust digital watermarking | Electricity | 56 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.