Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7831832 | Digital goods representation based upon matrix invariances | S. Serdar Kozat, Ramarathnam Venkatesan | 2010-11-09 |
| 7707425 | Recognizer of content of digital signals | Ramarathnam Venkatesan | 2010-04-27 |
| 7657752 | Digital signal watermaker | Ramarathnam Venkatesan | 2010-02-02 |
| 7636849 | Derivation and quantization of robust non-local characteristics for blind watermarking | Ramarathnam Venkatesan, Mariusz H. Jakubowski | 2009-12-22 |
| 7634660 | Derivation and quantization of robust non-local characteristics for blind watermarking | Ramarathnam Venkatesan, Mariusz H. Jakubowski | 2009-12-15 |
| 7620199 | Input complexity adaptive quantization watermarking | Yuqun Chen, Mariusz H. Jakubowski | 2009-11-17 |
| 7568103 | Derivation and quantization of robust non-local characteristics for blind watermarking | Ramarathnam Venkatesan, Mariusz H. Jakubowski | 2009-07-28 |
| 7565702 | Password-based key management | Mariusz H. Jakubowski | 2009-07-21 |
| 7454088 | Estimating orientation angle and translation values of a scanned image | Mustafa Kesal, Gary K. Starkweather | 2008-11-18 |
| 7406195 | Robust recognizer of perceptually similar content | Ramarathnam Venkatesan | 2008-07-29 |
| 7391884 | Correlative assessment between scanned and original digital images | Mustafa Kesal, Gary K. Starkweather, Ramarathnam Venkatesan | 2008-06-24 |
| 7356161 | Class of symmetric lattices for quantization and data embedding | Kamal Jain, Ramarathnam Venkatesan | 2008-04-08 |
| 7318157 | Derivation and quantization of robust non-local characteristics for blind watermarking | Ramarathnam Venkatesan, Mariusz H. Jakubowski | 2008-01-08 |
| 7302079 | Stealthy secret key encoding and decoding | Mustafa Kesal, Ramarathnam Venkatesan | 2007-11-27 |
| 7266244 | Robust recognizer of perceptually similar content | Ramarathnam Venkatesan | 2007-09-04 |
| 7257234 | Watermark-based goods authentication | Mustafa Kesal, Ramarathnam Venkatesan | 2007-08-14 |
| 7240210 | Hash value computer of content of digital signals | Ramarathnam Venkatesan | 2007-07-03 |
| 7188065 | Categorizer of content in digital signals | Ramarathnam Venkatesan | 2007-03-06 |
| 7152163 | Content-recognition facilitator | Ramarathnam Venkatesan | 2006-12-19 |
| 7095873 | Watermarking via quantization of statistics of overlapping regions | Ramarathnam Venkatesan, Mustafa Kesal | 2006-08-22 |
| 7072493 | Robust and stealthy video watermarking into regions of successive frames | Ramarathnam Venkatesan | 2006-07-04 |
| 7028189 | Derivation and quantization of robust non-local characteristics for blind watermarking | Ramarathnam Venkatesan, Mariusz H. Jakubowski | 2006-04-11 |
| 7020777 | Derivation and quantization of robust non-local characteristics for blind watermarking | Ramarathnam Venkatesan, Mariusz H. Jakubowski | 2006-03-28 |
| 7020775 | Derivation and quantization of robust non-local characteristics for blind watermarking | Ramarathnam Venkatesan, Mariusz H. Jakubowski | 2006-03-28 |
| 6996273 | Robust recognizer of perceptually similar content | Ramarathnam Venkatesan | 2006-02-07 |