David H. Robertson
17Patents
11h-index
19Co-inventors
69Inventor score
Filing activity: Sep 26, 1989 → Nov 8, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5982313A | High speed sigma-delta analog-to-digital converter system | Electricity | 56 | Expired |
| US5043732A | Analog-to-digital converter employing a pipeline multi-stage architecture | Electricity | 42 | Expired |
| US5936562A | High-speed sigma-delta ADCs | Electricity | 41 | Expired |
| USRE37619E1 | Skewless differential switch and DAC employing the same | General | 33 | Expired |
| US6124813A | Self-linearizing multi-bit DACs | Electricity | 33 | Expired |
| US6028891A | Asymmetric digital subscriber loop transceiver and method | Electricity | 31 | Expired |
| US5689257A | Skewless differential switch and DAC employing the same | Electricity | 26 | Expired |
| US5945872A | Two-phase boosted CMOS switch drive technique and circuit | Physics | 26 | Expired |
| US5917809A | Asymmetric digital subscriber loop modem and method | Electricity | 21 | Expired |
| US5331221A | Gain linearity correction for MOS circuits | Electricity | 20 | Expired |
| US4983929A | Cascode current mirror | Physics | 18 | Expired |
| US6031868A | Asymmetric digital subscriber loop transceivers | Electricity | 11 | Expired |
| US4990797A | Reference voltage distribution system | Physics | 6 | Expired |
| US7342614B2 | Methods and apparatus for tuning signals | Electricity | 5 | Expired |
| US5418408A | Current mode sample-and-hold amplifier | Physics | 5 | Expired |
| US5517149A | Gain linearity correction circuit for MOS circuits | Electricity | 1 | Expired |
| US9184756B2 | Variable dynamic range receiver | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.