Ernst Schroder
44Patents
13h-index
24Co-inventors
81Inventor score
Filing activity: Jun 15, 1976 → Dec 20, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6868045B1 | Voice control system with a microphone array | Electricity | 176 | Expired |
| US4353035A | Circuit for compression or expansion of an electrical signal | Electricity | 58 | Expired |
| US7334176B2 | Determination of the presence of additional coded data in a data frame | Physics | 50 | Expired |
| US5343896A | Papermakers fabric having stacked machine direction yarns | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4821260A | Transmission system | Electricity | 28 | Expired |
| US6681209B1 | Method and an apparatus for sampling-rate conversion of audio signals | Electricity | 25 | Expired |
| US4942607A | Method of transmitting an audio signal | Electricity | 23 | Expired |
| US5483690A | Artificially reducing signal reproduction quality of received degraded digitally coded audio data | Electricity | 20 | Expired |
| US5321729A | Method for transmitting a signal | Electricity | 18 | Expired |
| US7136817B2 | Method and apparatus for the voice control of a device appertaining to consumer electronics | Physics | 18 | Expired |
| US4119922A | Circuit for automatic volume compression or volume expansion | Electricity | 17 | Expired |
| US5764457A | Cassette including a recording medium for a recording apparatus | Physics | 17 | Expired |
| US5706396A | Error protection system for a sub-band coder suitable for use in an audio signal processor | Physics | 17 | Expired |
| US4034308A | Amplifier with controllable transmission factor and switchable control characteristic | Electricity | 13 | Expired |
| US4218662A | Circuit arrangement for optional dynamic compression or expansion | Electricity | 13 | Expired |
| US5601120A | Pin seam with double end loops and method | Textiles; Paper | 12 | Expired |
| US4099134A | Amplifier with controllable transmission factor and switchable control characteristic | Electricity | 11 | Expired |
| US4066976A | Amplifier with variable gain | Electricity | 10 | Expired |
| US4306202A | Compander | Electricity | 10 | Expired |
| US4270103A | Amplifier having a variable propagation constant | Electricity | 9 | Expired |
| US4322636A | Circuit system for the generation of a direct control voltage dependent upon an alternating voltage | Electricity | 9 | Expired |
| US4035739A | Signal dynamic compression and expansion circuits | Electricity | 8 | Expired |
| US8082050B2 | Method and apparatus for processing two or more initially decoded audio signals received or replayed from a bitstream | Electricity | 8 | Active |
| US5353276A | Process for recording and/or reproducing digital data on a record carrier | Physics | 8 | Expired |
| US6128148A | Memory device having multiple memory regions for a recording device | Physics | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.