Abstract: A cross reality system that provides an immersive user experience by storing persistent spatial information about the physical world that one or multiple user devices can access to determine position within the physical world and that applications can access to specify the position of virtual objects within the physical world. Persistent spatial information enables users to have a shared virtual, as well as physical, experience when interacting with the cross reality system. Further, persistent spatial information may be used in maps of the physical world, enabling one or multiple devices to access and localize into previously stored maps, reducing the need to map a physical space before using the cross reality system in it. Persistent spatial information may be stored as persistent coordinate frames, which may include a transformation relative to a reference orientation and information derived from images in a location corresponding to the persistent coordinate frame.

Abstract: A multi-slot access wallet includes a substantially rectangular base sheet, one or more intermediate sheets, and a top sheet. Each sheet has a substantially similar configuration having a lower edge, a first side edge perpendicular to the lower edge, an upper edge parallel to the lower edge, and a second side edge parallel to the first side edge that connects ends of the upper and lower edge. An upwardly adjacent sheet is joined to an immediately lower adjacent sheet with three edges being joined together and one edge remaining unjoined so as to form an opening to a pocket defined between respective sheets. Each respective pair of sheets defines an opening and pocket offset by 90 degrees from the prior pair of sheets such that each side of the wallet has a slot opening to a respective pocket.