A controller for a door operator including a processor, a first actuator, and a transmitter, and associated method. The method may include inverting bit positions of a rolling code, dividing the inverted code by a predetermined number, converting the divided inverted code to base 9 coefficients, and substituting an output nibble for each base 9 coefficient in the divided converted code. The transmitter may be configured to transmit the substituted output nibble responsive to actuation of the first actuator.

Remote control for actuating garage doors and other barriers, and method and system of using same. A base unit includes: a wireless receiver, to wirelessly receive from an electronic device an incoming wireless signal indicating a command to actuate a garage door; a wireless signal constructor, to dynamically construct an outgoing wireless signal which comprises a rolling code; a wireless transmitter, to transmit the outgoing wireless signal to a wireless receiver of a motor unit that is operably associated with the garage door. A wireless signal constructor dynamically constructs the outgoing wireless signal without having access to a secret seed value that is accessible to the motor unit. A local storage unit stores a data-set of rolling codes that are associated with the motor unit; and the outgoing wireless signal is dynamically constructed based on a next-available rolling code obtained from the local storage unit of the base unit.

Upon providing (101) message content (such as a remote control instruction) to be transmitted, and in conjunction with provision (102) of a plurality of different transmission characteristics (as correspond, for example, to different types of transmission) and a corresponding plurality of correlated recovery identifiers (103), a particular transmission characteristic is selected (104) and used to transmit (105) a joint message. In particular, in a preferred approach, the selected transmission characteristic (106) is used when transmitting at least a portion of the message content portion of the joint message while another part of the joint message carries the recovery identifier to thereby facilitate selection of an appropriate reception technique by a receiver when receiving the joint message.

Remote control for actuating garage doors and other barriers, and method and system of using same. A base unit includes: a wireless receiver, to wirelessly receive from an electronic device an incoming wireless signal indicating a command to actuate a garage door; a wireless signal constructor, to dynamically construct an outgoing wireless signal which comprises a rolling code; a wireless transmitter, to transmit the outgoing wireless signal to a wireless receiver of a motor unit that is operably associated with the garage door. A wireless signal constructor dynamically constructs the outgoing wireless signal without having access to a secret seed value that is accessible to the motor unit. A local storage unit stores a data-set of rolling codes that are associated with the motor unit; and the outgoing wireless signal is dynamically constructed based on a next-available rolling code obtained from the local storage unit of the base unit.

The solution is directed to access control systems and verifying proximity of a user to an access point that the user is wirelessly requesting access to. The proximity verification is based on placing proximity hubs adjacent to the different access points. Each proximity hub advertises a different unique identifier that changes periodically over a short-range wireless network and can be detected with a mobile device if the mobile device is physically within a short distance from the proximity hub. The unique identifier changes based on a rolling code. A user is permitted access to a restricted access point in response to the mobile device sending over a different long-range wireless network, the unique identifier advertised from a proximity hub adjacent to a desired access point and user access credentials authenticating access privileges of the user to the desired access point.

A controller for a door operator including a processor, a first actuator, and a transmitter, and associated method. The method may include inverting bit positions of a rolling code, dividing the inverted code by a predetermined number, converting the divided inverted code to base 9 coefficients, and substituting an output nibble for each base 9 coefficient in the divided converted code. The transmitter may be configured to transmit the substituted output nibble responsive to actuation of the first actuator.

System and techniques for a secure wireless lock-actuation exchange are described herein. After receiving a request to actuate a lock from a device, a controller can calculate a challenge counter and then perform verification iterations until an end condition is metwhich is a failure of a verification iterations or the number of iterations reaches the challenge count. If the verification iterations reach the challenge count (e.g., there are no failed iterations), then the controller actuates the lock. Each iteration includes an exchange between the device and the controller that the device validates by signing a message with a private key shared by the device and the controller. The exchange also includes a freshness value integrated into the device validation to prevent replay attacks.

Remote control for actuating garage doors and other barriers, and method and system of using same. A base unit includes: a wireless receiver, to wirelessly receive from an electronic device an incoming wireless signal indicating a command to actuate a garage door; a wireless signal constructor, to dynamically construct an outgoing wireless signal which comprises a rolling code; a wireless transmitter, to transmit the outgoing wireless signal to a wireless receiver of a motor unit that is operably associated with the garage door. A wireless signal constructor dynamically constructs the outgoing wireless signal without having access to a secret seed value that is accessible to the motor unit. A local storage unit stores a data-set of rolling codes that are associated with the motor unit; and the outgoing wireless signal is dynamically constructed based on a next-available rolling code obtained from the local storage unit of the base unit.

The present invention relates generally a system and method for providing rolling code remote device functions to provide keyless entry to multiple makes and models of cars. The present invention is adapted to produce the radio signal type and transmitted data of an original manufacturer's keyless entry remote device system by implementing multiple modulation schema and data encoding techniques.

Remote control for actuating garage doors and other barriers, and method and system of using same. A base unit includes: a wireless receiver, to wirelessly receive from an electronic device an incoming wireless signal indicating a command to actuate a garage door; a wireless signal constructor, to dynamically construct an outgoing wireless signal which comprises a rolling code; a wireless transmitter, to transmit the outgoing wireless signal to a wireless receiver of a motor unit that is operably associated with the garage door. A wireless signal constructor dynamically constructs the outgoing wireless signal without having access to a secret seed value that is accessible to the motor unit. A local storage unit stores a data-set of rolling codes that are associated with the motor unit; and the outgoing wireless signal is dynamically constructed based on a next-available rolling code obtained from the local storage unit of the base unit.