John E. DeRoo
23Patents
15h-index
27Co-inventors
81Inventor score
Filing activity: Jun 29, 1990 → Nov 1, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5278703A | Embedded servo banded format for magnetic disks for use with a data processing system | Physics | 209 | Expired |
| US8824978B2 | RF amplifier architecture and related techniques | Electricity | 131 | Active |
| US8829993B2 | Linearization circuits and methods for multilevel power amplifier systems | Electricity | 122 | Active |
| US5182752A | Method and apparatus for transferring data between a data bus and a data storage device | Physics | 114 | Expired |
| US6173367A | Method and apparatus for accessing graphics cache memory | Physics | 64 | Expired |
| US9020453B2 | RF amplifier architecture and related techniques | Electricity | 55 | Active |
| US9209758B2 | RF amplifier having discrete supply voltages | Electricity | 42 | Active |
| US9160287B2 | Linearization circuits and methods for multilevel power amplifier systems | Electricity | 24 | Active |
| US9172336B2 | Method and apparatus for multilevel power amplification | Electricity | 21 | Active |
| US9490752B2 | RF amplifier having a transition shaping filter | Electricity | 19 | Active |
| US6279080A | Method and apparatus for association of memory locations with a cache location having a flush buffer | Physics | 19 | Expired |
| US9166536B2 | Transmitter architecture and related methods | Electricity | 18 | Active |
| US6182196A | Method and apparatus for arbitrating access requests to a memory | Physics | 18 | Expired |
| US6295581A | Method and apparatus for assuring cache coherency | Physics | 18 | Expired |
| US10164577B2 | Linearization circuits and methods for multilevel power amplifier systems | Electricity | 15 | Active |
| US10038461B2 | RF amplifier having a transition shaping filter | Electricity | 15 | Active |
| US6476811B1 | Method and apparatus for compressing parameter values for pixels in a display frame | Physics | 11 | Expired |
| US5574448A | Method and apparatus for encoding data with variable block lengths | Electricity | 8 | Expired |
| US10658981B2 | Linearization circuits and methods for multilevel power amplifier systems | Electricity | 7 | Active |
| US6658531B1 | Method and apparatus for accessing graphics cache memory | Physics | 3 | Expired |
| US7069397B2 | Stream based memory manager with function specific hardware logic for accessing data as a stream in memory | Physics | 2 | Expired |
| US10622949B2 | Linearization circuits and methods for multilevel power amplifier systems | General | 0 | Revoked |
| US9239457B2 | Circuits for controlling display apparatus | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.