US Patent 11284236 Device presence detection system

A determination is made as to when two computing devices are in the presence of each other, also referred to as the two computing devices being colocated. This determination is made based on wireless location signals received at the two computing devices as well as environment data sensed by the two computing devices. The computing devices determine whether they are in the presence of each other and enable multi-device engagement in response to determining that the two computing devices are in the presence of each other.