A counterbalance system for an overhead door is disclosed. The system includes a torsion adjustment comprising a first portion and a second portion, the first and second portions being rotatable relative to one another in a first direction and not in a second direction opposite the first direction. The system also includes an anchor fixed to the first portion, a collar fixed to the second portion, the collar being selectively fixable to a shaft of the overhead door, and a spring coupled between the collar and the anchor. The spring supports at least a portion of the weight of the overhead door as the overhead door is raised and lowered. Rotating the first portion of the torsion calibration collar relative to the second portion of the torsion calibration collar increases torsion in the spring and therefore calibrates the spring to support a desired amount of the weight of the overhead door.

In one aspect, an in-vehicle computing device is provided for controlling operation of a movable barrier operator. The in-vehicle computing device includes a sensor configured to detect a vehicle characteristic and communication circuitry operable to cause automatic operation of the movable barrier operator by communicating with the movable barrier operator. The in-vehicle device further includes a processor operatively coupled to the communication circuitry, the sensor, and the memory. The processor configured to determine satisfaction of a user account condition and, upon the user account condition not being satisfied, to inhibit the communication circuitry from initiating automatic operation of the movable barrier operator.

An automatic smoke/carbon monoxide evacuation system for a building having at least one existing ventilation fan and at least one ventilation passageway to outside the building is provided. The system includes a microprocessor and a smoke/carbon monoxide sensor coupled to the microprocessor and configured to detect presence of smoke/carbon monoxide and send a trigger signal to the microprocessor in response to detecting smoke/carbon monoxide. A power switch is coupled to the existing ventilation fan and is configured to automatically connect the existing ventilation fan to a power source in response to the trigger signal, so that the ventilation fan rotates at a high speed to ventilate the detected smoke/carbon monoxide via the existing ventilation passageway. An alarm device is further communicably coupled to the microprocessor and is configured to issue an alarm in response to the trigger signal.

Methods and apparatus to wirelessly interlock doors are disclosed. A door system includes a user interface to receive interlock configuration data input from a user, the interlock configuration data to define an interlock condition to be satisfied before a first door is to undergo an operation, the interlock condition associated with a current state of a second door. The door system includes a first wireless transceiver to receive a signal from a second wireless transceiver associated with a second door. The method includes a door operation controller to at least one of (1) implement the operation of the first door in response to a request when the current state of the second door satisfies the interlock condition, (2) ignore the request, or (3) not execute the operation of the first door in response to the request when the current state of the second door does not satisfy the interlock condition.

The present disclosure includes a haptic guidance and navigation system for a vehicle that includes two Blutooth modules configured as beacons (using, for example, Bluetooth®, Low-Energy (BLE) modules) disposed on the front-center end and back-center end of a vehicle. The system may include an application operative on a mobile device that is also configured for BLE. The BLE modules onboard the vehicle may be uniquely associated with the vehicle with a unique identification (ID), and used to determine relative distances and angles between the BLEs and the mobile device. The haptic guidance and navigation system may generate haptic and other feedback using the mobile device and haptic output devices onboard the vehicle, to guide a user to a determined point of entry for the vehicle.

Systems, methods, and apparatus for managing and controlling network-enabled movable barrier operators is provided. A method for managing network-enabled movable barrier operator includes receiving a user account identifier and a movable barrier operator identifier from a user device, providing an instruction to perform a specified action with a movable barrier operator associated with the movable barrier operator identifier to the user device, determining a registration condition is met upon detecting that the specified action has been performed, and, upon the registration condition being met, associating the movable barrier operator identifier with the user account identifier to allow a user account associated with the user account identifier to control the movable barrier operator over a network.

A system is provided for allowing temporary access to a desired area. The temporary access may be for the purposes of making a delivery. The system comprises a trainable transceiver configured to transmit an activation signal to a remote device; a mobile communications device in selective communication with the trainable transceiver; and an accessory selectively securable to mobile communications device and capable of transmitting information to trainable transceiver.

A movable barrier operator system including a movable barrier operator configured to be connected to a movable barrier and move the movable barrier. The system includes a remote control configured to utilize a first security protocol to wirelessly transmit a communication to the movable barrier operator and cause the movable barrier operator to move the movable barrier. The movable barrier operator is configured to receive information representative of a second security protocol and to eliminate a compatibility of the movable barrier operator with communications from the remote control utilizing the first security protocol.

A movable barrier operator system including a movable barrier operator configured to be connected to a movable barrier and move the movable barrier. The system includes a remote control configured to utilize a first security protocol to wirelessly transmit a communication to the movable barrier operator and cause the movable barrier operator to move the movable barrier. The movable barrier operator is configured to receive information representative of a second security protocol and to eliminate a compatibility of the movable barrier operator with communications from the remote control utilizing the first security protocol.

A method of implementing a network-enabled secure door lock, comprising determining, at a first component of the lock, a nonce; wirelessly transmitting the nonce to a second component of the door lock, the first component and second component selectively mechanically engagable with one another to prevent relative movement between the first component and second component to prevent opening of a door; receiving, at the first component, a first message; using a cryptographic key associated with the second component and the nonce to validate the first message; and as a result of determining that the message is valid, transmitting a second message indicating that the first component and second component have become mechanically engaged with one another.