Storage for active ranging systems with write and overwrite specific instructions
US11841428B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2019 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Nov 1, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0246
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for storing sensed values in an optical receiver corresponding to time-of-flight windows for receiving optical signals elicited by emitted optical pulses includes at least one photodetector, a storage array, and a control circuit. The at least one photodetector is configured to generate output signals indicative of received optical signals. The storage array includes a plurality of storage elements and is connected to receive and store the output signals from the at least one photodetector corresponding to at least a portion of a time-of-flight receive window. The control circuit is configured to control storage of output signal values by the storage array, and is configured to: write and overwrite the output signal values to a first subset of the plurality of storage elements, detect an event based on the written output values, and retain data on respective analog storage elements that comprise at least the first subset of the plurality of storage elements in response to detection of the event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.