Alexander Topchy
130Patents
14h-index
41Co-inventors
82Inventor score
Filing activity: Dec 14, 2007 → Apr 19, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8369972B2 | Methods and apparatus to perform audio watermarking and watermark detection and extraction | Electricity | 72 | Active |
| US9788777B1 | Methods and apparatus to identify a mood of media | Human Necessities | 69 | Active |
| US8666528B2 | Methods, apparatus and articles of manufacture to provide secondary content in association with primary broadcast media content | Electricity | 58 | Active |
| US8359205B2 | Methods and apparatus to perform audio watermarking and watermark detection and extraction | Electricity | 50 | Active |
| US10318580B2 | Detecting media watermarks in magnetic field data | Physics | 39 | Active |
| US8327396B2 | Methods, systems, and apparatus for multi-purpose metering | Electricity | 34 | Active |
| US8060372B2 | Methods and appratus for characterizing media | Electricity | 29 | Active |
| US9368123B2 | Methods and apparatus to perform audio watermark detection and extraction | Physics | 23 | Active |
| US8121830B2 | Methods and apparatus to extract data encoded in media content | Electricity | 21 | Active |
| US9426525B2 | Methods and apparatus to count people in an audience | Electricity | 17 | Active |
| US8554545B2 | Methods and apparatus to extract data encoded in media content | Electricity | 16 | Active |
| US8600531B2 | Methods and apparatus for generating signatures | Electricity | 15 | Active |
| US8508357B2 | Methods and apparatus to encode and decode audio for shopper location and advertisement presentation tracking | Physics | 15 | Active |
| US8457951B2 | Methods and apparatus for performing variable black length watermarking of media | Physics | 15 | Active |
| US10448123B1 | Methods and apparatus to extend a timestamp range supported by a watermark | Electricity | 12 | Active |
| US9055336B2 | Methods, systems and apparatus for multi-purpose metering | Electricity | 11 | Active |
| US8457972B2 | Methods and apparatus for characterizing media | Electricity | 10 | Active |
| US9093064B2 | Down-mixing compensation for audio watermarking | Physics | 9 | Active |
| US10448122B1 | Methods and apparatus to extend a timestamp range supported by a watermark | Electricity | 8 | Active |
| US9460730B2 | Methods and apparatus to perform audio watermarking and watermark detection and extraction | Electricity | 8 | Active |
| US10003846B2 | Methods, apparatus and articles of manufacture to provide secondary content in association with primary broadcast media content | Electricity | 7 | Active |
| US8364491B2 | Methods and apparatus for characterizing media | Electricity | 7 | Active |
| US8752081B2 | Methods, systems and apparatus for multi-purpose metering | Electricity | 7 | Active |
| US9136965B2 | Methods and apparatus for generating signatures | Electricity | 6 | Active |
| US10580421B2 | Methods and apparatus to perform audio watermarking and watermark detection and extraction | Electricity | 6 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.