Multi-frequency unwrapping
US10598783B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2016 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Apr 30, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The time-of-flight system disclosed herein includes a frequency unwrapping module configured to generate an input phase vector with M phases corresponding to M sampled signals from an object, determine an M−1 dimensional vector of transformed phase values by applying a transformation matrix (T) to the input phase vector, determine an M−1 dimensional vector of rounded transformed phase values by rounding the transformed phase values to a nearest integer, and determine a one dimensional lookup table (LUT) index value by transforming the M−1 dimensional rounded transformed phase values. The index value is input into the one dimensional LUT to determine a range of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.