US Patent 9013575 Doorbell communication systems and methods

Doorbells can be used to detect visitors. Doorbells can have a field of view that includes a first portion and a second portion. Some embodiments include using a doorbell to detect a first object within the first portion of the field of view, and then determining if a doorbell button is pressed. If the doorbell button is not pressed, the doorbell may become less sensitive to objects detected in the first portion of the field of view. If the doorbell button is pressed, the doorbell may become more sensitive to objects detected in the first portion of the field of view. Multiple portions of the field of view may be independently adjusted based on doorbell button data.