Patent · US Active

Time of flight camera system

US9664790B2 · kind B2 · utility

3Cited by

2References

9Claims

0Family size

Assignee

PMD TECHNOLOGIES AG · DE

Inventors

Ralph Wilks · Meckenbeuren, DE
Christian Prestele · Tettnang, DE

Key dates

Filing date	Apr 26, 2013
Grant date	May 30, 2017
Priority date	—
Expiry date	Dec 14, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01S17/894
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A light propagation time camera system and a method for operating such a system, in which—in a distance measurement a first range-related variable is ascertained using a phase shift in an emitted and received signal for a first modulation frequency,—and in a control measurement a second range-related variable is ascertained, wherein the control measurement is performed at a second modulation frequency, which differs from the first modulation frequency, and the control measurement is performed with a smaller number of phases than the distance measurement is provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.