LIDAR system
US10830878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2017 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Nov 18, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D62/8503
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A LIDAR system emits laser bursts, wherein each burst has at least a pair of pulses. The pulses of each pair are spaced by a time interval having a variable duration to reduce effects of cross-talk. For example, certain embodiments may have multiple emitter/sensor channels that are used sequentially, and each channel may use a different duration for inter-pulse spacing to reduce the effects of cross-talk between channels. The durations may also be varied over time. The emitters and sensors are physically arranged in a two-dimensional array to achieve a relatively fine vertical pitch. The array has staggered rows that are packed using a hexagonal packing arrangement. The channels are used in a sequential order that is selected to maximize spacing between consecutively used channels, further reducing possibilities for inter-channel cross-talk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.