Abstract: Delivery parcel detection systems can include a remote computing device and a doorbell configured to detect a delivery parcel. Methods of enabling a door to be unlocked to allow access to a delivery person may include sending a digital key to a remote computing device. Methods may include ways to ensure security of the building.

Abstract: Doorbells can send data to each other to enable a first doorbell user to warn a second doorbell user regarding a suspicious visitor. A first user can indicate a first trait of a visitor via a first remote computing device. The first user can create a user group to enable the members of the user group to use their doorbells to take pictures of suspicious visitors and to send the pictures of the suspicious visitors to other members of the user group.

Abstract: Doorbells can send data to each other to enable a first doorbell user to warn a second doorbell user regarding a suspicious visitor. A first user can indicate a first trait of a visitor via a first remote computing device. The first user can create a user group to enable the members of the user group to use their doorbells to take pictures of suspicious visitors and to send the pictures of the suspicious visitors to other members of the user group.

Abstract: Delivery parcel detection systems can include a doorbell having a first wireless communication system and a floor covering configured for placement on an entryway floor. The doorbell can be communicatively coupled to the floor covering. The floor covering can comprise a sensor configured to detect a delivery parcel located on the floor covering. Systems can include a first communication sent from the floor covering to the doorbell in response to the floor covering detecting an arrival, a movement, or a removal of the delivery parcel. Systems can also include a second communication sent from the doorbell to a remote computing device in response to the doorbell receiving the first communication.

Abstract: Delivery parcel detection systems can include a doorbell having a first wireless communication system and a floor covering configured for placement on an entryway floor. The doorbell can be communicatively coupled to the floor covering. The floor covering can comprise a sensor configured to detect a delivery parcel located on the floor covering. Systems can include a first communication sent from the floor covering to the doorbell in response to the floor covering detecting an arrival, a movement, or a removal of the delivery parcel. Systems can also include a second communication sent from the doorbell to a remote computing device in response to the doorbell receiving the first communication.

Abstract: Doorbell systems can include a doorbell and a remote communication device. In some embodiments, the remote communication device can be communicatively coupled to a wireless network of a building, to the doorbell, and to a remote computing device. In several embodiments, the remote communication device facilitates communication with at least one of the doorbell, the remote computing device, and a remote sensor.

Abstract: Doorbell systems can be configured to detect temperature of an outdoor environment. Accordingly, some embodiments of the doorbell system can include a doorbell, a button coupled to the doorbell, and a temperature sensor coupled to the doorbell. Doorbell systems can also be configured to regulate temperature within a doorbell. As such, some embodiments of the doorbell system can include the doorbell, a button coupled to the doorbell, and a heating element located inside the doorbell.

Abstract: Doorbell systems can be configured to detect and/or regulate temperature within a doorbell. Doorbell systems can comprise a temperature sensor coupled to the doorbell and a heating element coupled to the doorbell. Methods can include determining, by the doorbell, a first temperature of an inside portion of the doorbell. As well, methods can include heating, by the heating element, the inside portion of the doorbell in response to the first temperature being less than a first predetermined temperature. In some embodiments, doorbells detect humidity and then communicate the humidity to a remote device.

Abstract: Doorbells can send data to each other to enable a first doorbell user to warn a second doorbell user regarding a suspicious visitor. A first user can indicate a first trait of a visitor via a first remote computing device. The first user can create a user group to enable the members of the user group to use their doorbells to take pictures of suspicious visitors and to send the pictures of the suspicious visitors to other members of the user group.

Abstract: Doorbell systems can be configured to detect and/or regulate temperature within a doorbell. Doorbell systems can comprise a temperature sensor coupled to the doorbell and a heating element coupled to the doorbell. Methods can include determining, by the doorbell, a first temperature of an inside portion of the doorbell. As well, methods can include heating, by the heating element, the inside portion of the doorbell in response to the first temperature being less than a first predetermined temperature. In some embodiments, doorbells detect humidity and then communicate the humidity to a remote device.

Abstract: Doorbell systems can include a doorbell having a speaker and a microphone. Doorbell systems can receive a custom message from a user. Doorbell systems can thereby detect an indication of a presence of a visitor, and then in response to detecting the indication of the presence of the visitor, doorbell systems can emit the custom message with the speaker.

Abstract: Doorbell systems can be configured to detect temperature of an outdoor environment. Accordingly, some embodiments of the doorbell system can include a doorbell, a button coupled to the doorbell, and a temperature sensor coupled to the doorbell. Doorbell systems can also be configured to regulate temperature within a doorbell. As such, some embodiments of the doorbell system can include the doorbell, a button coupled to the doorbell, and a heating element located inside the doorbell.

Abstract: Doorbell systems can include a doorbell, a chime, and a remote computing device. In some embodiments, the remote computing device can select a sound. A data file comprising information that represents the sound can be sent to the doorbell that is communicatively coupled to the remote computing device. The doorbell can send the data file to the chime that is communicatively coupled to the doorbell and remotely located with respect to the doorbell.

Abstract: Doorbell systems can be configured to electrically couple to a doorbell power supply of a building. In some embodiments, the doorbell systems can include a doorbell with a button configurable to sound a chime. As well, doorbell systems can include a first wire that can electrically couple the doorbell to the power supply and a second wire that can electrically couple the doorbell to the chime. Doorbell systems can also include a third wire that can electrically couple the chime to the power supply to form a circuit comprising the first wire, the doorbell, the second wire, the chime, the third wire, and the power supply.

Abstract: Doorbells can include a speaker and a visitor detection system having at least one of a button, a camera, and a motion detector. The speaker of the doorbell can be configurable to emit a first sound in response to the visitor detection system detecting a first indication of a visitor's presence. As well, the speaker of the doorbell can be configurable to emit a second sound in response to the visitor detection system detecting a second indication of the visitor's presence.

Abstract: Doorbell systems can be configurable to determine whether an emergency event has been initiated inside of a building to which the doorbell system is attached. In response to determining that the emergency event has been initiated, the doorbell system can activate an alert communication system to notify people located outside of the building.

Abstract: Doorbell systems can include a doorbell having a speaker and a microphone. Doorbell systems can receive a custom message from a user. Doorbell systems can thereby detect an indication of a presence of a visitor, and then in response to detecting the indication of the presence of the visitor, doorbell systems can emit the custom message with the speaker.