公开(公告)号：US20180059218A1

公开(公告)日：2018-03-01

申请号：US15689079

申请日：2017-08-29

Applicant: Heptagon Micro Optics Pte. Ltd.

Inventor： Bernhard Buettgen ,  Jens Geiger ,  Michael Kiy ,  Oliver Chidley ,  Markus Rossi

IPC: G01S7/483 ,  G01S17/36 ,  G01S17/42 ,  G01S17/02 ,  G01S7/481 ,  G01S7/497

CPC classification number: G01S7/483 ,  G01S7/481 ,  G01S7/4813 ,  G01S7/497 ,  G01S17/026 ,  G01S17/36 ,  G01S17/42 ,  G01S2007/4975

Abstract: A time of flight-based system is operable for ambient light measurements. A method of operation includes detecting, in at least one active demodulation detection pixel, a first particular wavelength and generating amplitude data of the first particular wavelength; and detecting, in at least one spurious reflection detection pixel, a second particular wavelength and generating amplitude data of the second particular wavelength. In a computational device that stores spectrum data corresponding respectively to a plurality of different ambient light source types, an ambient lighting condition is determined based on the amplitude data of the first particular wavelength, the amplitude data of the second particular wavelength and the spectrum data of a particular one of the ambient light source types associated with the amplitude data of the first particular wavelength and the amplitude data of the second particular wavelength.

公开(公告)号：US20180059246A1

公开(公告)日：2018-03-01

申请号：US15687884

申请日：2017-08-28

Applicant: Heptagon Micro Optics Pte. Ltd.

Inventor： Bernhard Buettgen ,  Jens Geiger ,  Michael Kiy ,  Oliver Chidley ,  Markus Rossi

IPC: G01S17/36 ,  G01S7/481 ,  G01S17/89 ,  G01S7/497 ,  A61B5/024 ,  G06F3/01

Abstract: An optoelectronic module includes a first light emitter operable to emit radiation at a first wavelength toward an object outside the module. The module also includes demodulation pixels operable to detect radiation of the first wavelength reflected from the object. One or more processors are operable to determine a distance to the object based on the radiation detected by the demodulation pixels. The module is further operable to perform a supplemental measurement other than distance.

公开(公告)号：US20180064399A1

公开(公告)日：2018-03-08

申请号：US15696431

申请日：2017-09-06

Applicant: Heptagon Micro Optics Pte. Ltd.

Inventor： Bernhard Buettgen ,  Jens Geiger ,  Michael Kiy ,  Oliver Chidley ,  Markus Rossi

IPC: A61B5/00 ,  G01S17/88 ,  G01S7/491 ,  H04N5/378 ,  G06K9/00 ,  A61B5/024 ,  A61B5/1455

CPC classification number: A61B5/7228 ,  A61B5/0077 ,  A61B5/02416 ,  A61B5/02433 ,  A61B5/14551 ,  G01S7/4914 ,  G01S7/4915 ,  G01S17/88 ,  G06K9/00885 ,  G06K9/2036 ,  G06K2009/00932 ,  G06K2009/00939 ,  H04N5/378

Abstract: Imaging systems include multi-tap demodulation pixels for biometric measurements such as heart rate or blood oxygen level. Using multi-tap demodulation pixels can, in some cases, help facilitate the generation of differential signals to remove background noise and achieve a higher dynamic range for the biometric measurements.