Alex Bradshaw
17Patents
10h-index
31Co-inventors
72Inventor score
Filing activity: Jan 22, 1993 → Apr 11, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6246646A | Focus control apparatus for multilayer optical recording medium | Physics | 27 | Expired |
| US5751674A | Apparatus for controlling bias amount of focus error signal | Physics | 21 | Expired |
| US5430698A | CD playing apparatus | Physics | 19 | Expired |
| US5471441A | CD player capable of playing back partially recorded CD | Physics | 18 | Expired |
| US5600615A | Device and method for automatically controlling a servo loop gain | Physics | 18 | Expired |
| US6151280A | Focus jump control apparatus of a player for multilayer recording disc | Physics | 16 | Expired |
| US6101157A | Apparatus and method for focus control of read light irradiated on a recording surface | Physics | 15 | Expired |
| US5926445A | Waveform controlling device for a tracking error signal | Physics | 14 | Expired |
| US5414684A | Method and apparatus for discriminating type of disks positioned on a CD player | Physics | 14 | Expired |
| US6295256A | Focusing bias adjusting apparatus and method in optical recording medium playing apparatus | Physics | 12 | Expired |
| US5508988A | Method and apparatus for reproducing information from a partially recorded recording medium | Physics | 10 | Expired |
| US6134196A | Carriage controller for multi-layer disc | Physics | 8 | Expired |
| US9280141B2 | Controlling table music system | Electricity | 7 | Active |
| US6587409B1 | Tilt servo apparatus for optical disc recording/playing apparatus | Physics | 6 | Expired |
| US6690632B1 | Tilt servo apparatus and control method thereof | Physics | 6 | Expired |
| US5515351A | Method and apparatus for executing a CD playback setup operation in a CD player particularly suited to playback of partially recorded CDs | Physics | 5 | Expired |
| US6985412B1 | Focus servo controller with collision avoidance and method therefor | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.