Method of locating an object in 3D

Patent metadata

Field	Value
Publication number	US-9255986-B2
Application number	US-49933509-A
Country	US
Kind code	B2
Filing date	Jul 8, 2009
Priority date	May 9, 2008
Publication date	Feb 9, 2016
Grant date	Feb 9, 2016

Abstract

Methods and devices for calculating the position of a movable device are disclosed. The device may include multiple optical detectors (ODs) and the movable device may include light sources. Optics may be above the ODs. A controller may calculate the position of the light source based on data from the ODs and properties of the optics. The device may be a game console, and the light source may be a game controller. The roles of the OD and light sources may be interchanged. The rotation of the movable device may be determined using multiple light sources and/or multiple ODs on the movable device. The movable device may calculate its position and transmit it to a console. The light sources may be modulated by time or frequency to distinguish between the light sources. There may be two or more movable devices. There may be two or more consoles.

First claim

I claim:

1. A device for calculating a rotation of a movable device, comprising:
an optical detector having a light sensitive surface for generating signals at a plurality of edges of the light sensitive surface that are proportional to a relative location of light on the light sensitive surface with respect to each respective edge;
a controller communicatively coupled to the optical detector, configured to:
calculate length vectors of a distance between (i) a first light sourc…

Assignees

• Deliwala Shrenik
• Analog Devices Inc

Inventors

• Deliwala Shrenik

Classifications

• A63F2300/8088

  Human Necessities · mapped topic

• A63F2300/66

  Human Necessities · mapped topic

• A63F2300/6045

  Human Necessities · mapped topic

• A63F2300/1093

  Human Necessities · mapped topic

• A63F2300/1087

  Human Necessities · mapped topic