Roger Lagadec
32Patents
11h-index
31Co-inventors
75Inventor score
Filing activity: Jan 21, 1983 → Oct 8, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4622598A | Method of recording odd and even words of one channel PCM signals in plural tracks | Physics | 49 | Expired |
| US4748578A | Process and apparatus for translating the sampling rate of a sampling sequence | Electricity | 46 | Expired |
| US4953117A | Method and apparatus for converting sampling frequencies | Electricity | 38 | Expired |
| US4942565A | Apparatus for recording a wobbling, spiral guide groove on an optical disc | Physics | 38 | Expired |
| US4564918A | Method and apparatus for measuring the time difference between two sampling times | Electricity | 31 | Expired |
| US7590547B2 | Method for transmitting an anonymous request from a consumer to a content or service provider through a telecommunication network | Electricity | 25 | Active |
| US4825398A | Method and apparatus for converting an input scanning sequence into an output scanning sequence | Electricity | 24 | Expired |
| US4780892A | Scanning frequency synchronization method and apparatus | Physics | 20 | Expired |
| US4644546A | Method of digital signal transmission | Electricity | 18 | Expired |
| US5654902A | Recyclable component with data storage for storing information for examining the component and product including such a component | Physics | 17 | Expired |
| US8401867B2 | Method for transmitting an anonymous request from a consumer to a content or service provider through a telecommunication network | Electricity | 12 | Active |
| US4620238A | Method and apparatus for recording and replay of digital audio data | Physics | 11 | Expired |
| US4562489A | Apparatus for recording of digital data | Physics | 11 | Expired |
| US5257271A | Sample data transmission apparatus | Physics | 9 | Expired |
| US4757518A | Coding digital data | Physics | 9 | Expired |
| US4591926A | Technique for editing interleaved digital audio data | Physics | 7 | Expired |
| US4766602A | Synchronizing signal decoding | Electricity | 7 | Expired |
| US4821298A | Method and apparatus for reproducing digitized signals | Physics | 5 | Expired |
| US4709278A | Method and apparatus for producing and selectively equalizing a temporal relationship between series of digital signals | Physics | 4 | Expired |
| US4672527A | Method and apparatus for supplying a system for processing electrical signals | Electricity | 4 | Expired |
| US8886542B2 | Voice interactive service system and method for providing different speech-based services | Physics | 3 | Active |
| US4748519A | Method and apparatus for recording and reproducing coded digital signals | Physics | 2 | Expired |
| US4630007A | Delta modulated signal sampling rate converter using digital means | Electricity | 2 | Expired |
| US7356133B2 | Method and system for anonymously transmitting messages by means of a telecommunication network | Electricity | 2 | Expired |
| US5065260A | Method for recording/reproducing expanded digital signals in conventional format | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.