Google Inc.

Luis Villaran

Andrea Colaco

Ghulam Ahmed Kirmani

Yash Modi

Kenneth Louis Herman

Laura Rabb

Casey Mills Davis

Bryan J James

Michael D Dixon

Aveek Ravishekhar Purohit

David Hendler Sloo

Jeffery Theodore Lee

Chintan Trehan

Ghulam Kirmani

Ghulam A Kirmani

Systems and methods of using active infrared (AIR) sensors to map a room of a home or building and determine whether an external portal (e.g., window and/or door) of the room is open or closed are provided. In particular, the systems and methods include outputting infrared (IR) light from an IR light source of an active infrared (AIR) sensor, receiving reflected IR light with a light sensor, and determining, with a processor coupled to the light sensor, whether a window of a room is open according to the received reflected IR light.

Systems and methods of detection with active infrared sensors

A device may emit a first emission sequence of infrared radiation at a subject, and capture a first reflected sequence of infrared radiation reflected from the subject. The first emission sequence may be compared to the first reflected sequence, and, based on the comparison, a sequence of variations may be determined. The sequence of variations may be compared to a signal pattern stored in a sleep profile for the subject. The subject may be determined to have exhibited a sleep behavior based on the comparison of the sequence of variations to the signal pattern stored in the sleep profile. In response to determining that the subject has exhibited the sleep behavior, the device may capture a second reflected sequence of radiation reflected from the subject. A breathing rate of the subject and/or a heart rate of the subject may be determined based on the second reflected sequence.

Using active IR sensor to monitor sleep

Techniques of tracking a hand controller in a VR system involves detecting, by photodiodes in the hand controller, patterns of diffuse radiation generated by diffuse LEDs in the HMD. Such techniques can also include comparing the detected patterns to those simulated offline previously and represented in a lookup table (LUT). By looking up the detected patterns in the LUT, the VR system may determine the position and/or orientation of the hand controller with sub-millimeter accuracy. Some advantages of the improved techniques can be in the simplicity and/or low cost of the components without sacrificing accuracy in deriving the position and orientation of the hand controller.

Tracking of position and orientation of objects in virtual reality systems

A method and system for optically detecting a user. A sequence of patterns of radiation reflected from an object in a room may be captured by a device. The patterns of radiation may be infrared radiation emitted from the device. A sequence of variations between the captured sequence of patterns of radiation and the emitted sequence of patterns of radiation may be determined and object characteristics of an object may be determined based upon the sequence of variations. The object characteristics may be a sequence of dimensions of the object and a sequence of locations of the object. The method may determine the first is a user based upon the determined object characteristics and a room profile. The room profile may include a plurality of object characteristics of one or more objects in the room.

Method and system for optical user recognition

Growing community of inventors

East Palo Alto, CA, United States of America

Luis Villaran