US Patent 9195220 Clock device with automatic simulation of sunrise or sunset

A clock comprises an alarm clock housing having a front face, a clock display occupying at least a portion of the front face, a control on the housing for activating a shade positioning function, and a processor within the housing. The processor is responsive to the control for generating at least one shade positioning command to be transmitted to at least one motorized window shade, so as to cause the motorized window shade to move to one or more position at one or more corresponding predetermined interval relative to an alarm time.