39 patents
Page 2 of 2
Utility
Scanned beam display with multiple detector rangefinding
2 Nov 21
A scanning display system includes two detectors for rangefinding.
Bin Xue, P. Selvan Viswanathan, Robert James Jackson, George Thomas Valliath
Filed: 6 Jun 17
Utility
Scanning rangefinding system with variable field of view
5 Oct 21
A scanning rangefinding system includes a MEMS device with a scanning mirror that sweeps a beam in two dimensions.
Jari Honkanen, P. Selvan Viswanathan, Robert James Jackson
Filed: 12 Feb 18
Utility
Compensation for laser light source misalignment in a multiple laser scanning TOF sensor system
17 Aug 21
Laser light pulses of at least two different wavelengths are reflected off a scanning mirror.
Henry J. Baron, Phillip R. Kent
Filed: 10 Jul 18
Utility
Occlusion-based height estimation
11 May 21
A projection system emits light pulses in a field of view and measures properties of reflections.
Patrick J. McVittie, P. Selvan Viswanathan, Jonathan A. Morarity
Filed: 27 Dec 16
Utility
Multiplexed LIDAR transceiver
2 Mar 21
A scanning light detection and ranging (LIDAR) system includes a scanning apparatus that scans laser light pulses sinusoidally in a vertical direction, and quasi-statically through angular extents in a horizontal direction.
Robert James Jackson
Filed: 25 Apr 18
Utility
Scanning 3D imaging device with power control using multiple wavelengths
21 Dec 20
Laser light pulses of at least two different wavelengths are reflected off a scanning mirror.
P. Selvan Viswanathan, Bin Xue
Filed: 7 Jan 18
Utility
Time division multiplexing of multiple wavelengths for high resolution scanning time of flight 3D imaging
7 Dec 20
Laser light pulses of at least two different wavelengths are reflected off a scanning mirror.
P. Selvan Viswanathan, Bin Xue
Filed: 7 Jan 18
Utility
Laser scanning devices and methods for extended range depth mapping
23 Nov 20
Devices and methods are described that provide for scanning surfaces and generating 3-dimensional point clouds that describe the depth of the measured surface at each point.
Jari Honkanen, Robert James Jackson
Filed: 7 Jan 18
Utility
Angular velocity correction of a scanning light beam by optical methods
9 Nov 20
An angular velocity correcting optical device receives a sinusoidally swept input light beam and outputs a non-sinusoidally swept output beam.
P. Selvan Viswanathan, Matthieu Saracco, Roger F. Johnson, Ian Blanch
Filed: 22 Jul 18
Utility
Transmitter/receiver disparity for occlusion-based height estimation
31 Aug 20
A projection system emits light pulses in a field of view and measures properties of reflections.
P. Selvan Viswanathan, Jonathan A. Morarity, Alga Lloyd Nothern, III, Bin Xue
Filed: 26 Dec 16
Utility
Optical power sensing devices and methods
10 Aug 20
Devices and methods are described herein to measure optical power in scanning laser projectors.
Matthieu Saracco, Alga Lloyd Nothern, III, Thomas Byeman
Filed: 11 Feb 18
Utility
Scanning time of flight 3D sensing with smart pulsing
1 Jun 20
A scanning display system includes smart infrared pulsing to detect gestures and touch events with reduced power consumption.
P. Selvan Viswanathan, Jari Honkanen
Filed: 11 Feb 18
Utility
Method and apparatus for laser beam combining and speckle reduction
6 Apr 20
A beam combining device combines laser beams and performs speckle reduction of the laser light.
Alga Lloyd Nothern, III, Matthieu Saracco, Roeland Collet, Thomas Byeman
Filed: 8 Apr 18
Utility
Method and apparatus for collimating light from a laser diode
23 Mar 20
A bi-acylindrical lens collimates a divergent elliptical laser beam.
Matthieu Saracco
Filed: 8 Mar 18
Utility
Laser welded scanner assemblies
16 Mar 20
The embodiments described herein provide improved scanner assemblies that include a first plastic body, a second plastic body, a movable scanning platform and a drive device.
Thomas Byeman, Naili Yue, Sumit Sharma
Filed: 18 Dec 17
Utility
Mixed-mode depth detection
9 Dec 19
Briefly, in accordance with one or more embodiments, a MEMS laser beam display to implement mixed-mode depth detection comprises an imaging engine to project an image in a field of view of the MEMS laser beam display, a time of flight (TOF) depth detector to determine a distance to a target within the field of view in a first mode of depth detection, wherein the TOF depth detector determines coarse depth data of the target, and a structured light depth detector to determine a distance to the target in a second mode of depth detection, wherein the structured light depth detector determines fine depth data of the target.
P. Selvan Viswanathan
Filed: 7 Sep 15
Utility
Optical steering of component wavelengths of a multi-wavelength beam to enable interactivity
18 Nov 19
Briefly, in accordance with one or more embodiments, an information handling system comprises a scanning system to scan one or more component wavelength beams into a combined multi-component beam in a first field of view, and a redirecting system to redirect one or more of the component wavelength beams into a second field of view.
P. Selvan Viswanathan, Roeland Collet, George Thomas Valliath, Jari Honkanen, Matthieu Saracco
Filed: 15 Feb 16
Utility
Smart pulsing in regions of interest in scanned beam 3D sensing systems
11 Nov 19
A scanned beam 3D sensing system includes smart infrared pulsing to detect objects in a field of view.
P. Selvan Viswanathan, Jari Honkanen
Filed: 11 Feb 18
Utility
Laser scanning devices and methods with touch detection
11 Nov 19
Laser scanning devices and methods are described that provide for improved touch detection.
Chao Chen
Filed: 11 Jul 18