Provided is an in-store dual-mode communication system in which shelves are disposed within a commercial space. A server is coupled to the Internet and/or a wide-area network and is configured to send and receive communications. Also provided are light-based messaging units that are located on and/or attached to such shelves, each: 1) having a light source, 2) receiving a communication from the server, and 3) in response to receipt of such communication, turning the light source on and off so as to broadcast a digital message that was included within such communication, as a binary-encoded digital signal corresponding to on/off states of the light source. A user device: (i) receives, via its light sensor, and then decodes the binary-encoded digital signal from a light-based messaging unit in order to obtain the digital message that corresponds to it; and also (ii) communicates with the server via its wireless interface.

An encrypted rolling code, a plurality of differing data bit order patterns, and a plurality of differing data inversion patterns are provided. Based on the encrypted rolling code, patterns are selected from one or more of the plurality of differing data bit order patterns and the plurality of differing data inversion patterns. At least a part of the encrypted rolling code is transmitted to a movable barrier operator using the selected patterns as transmission characteristics.

An encrypted rolling code, a plurality of differing data bit order patterns, and a plurality of differing data inversion patterns are provided. One then selects a particular one of each of these patterns and uses those selected patterns as transmission characteristics when transmitting at least part of the encrypted rolling code.

An encrypted rolling code, a plurality of differing data bit order patterns, and a plurality of differing data inversion patterns are provided. One then selects a particular one of each of these patterns and uses those selected patterns as transmission characteristics when transmitting at least part of the encrypted rolling code.

Provided are, among other things, systems, methods and techniques for providing remote location-based customer service for in-store customers. One such system includes: (a) a central server; (b) wireless transceivers coupled to the central server at different locations within each of multiple different retail shopping sites; and (c) handheld wireless devices, carried by customers at such retail shopping sites and in wireless communication with such wireless transceivers. Each of the handheld wireless devices is configured with a user interface that allows a customer to designate a user-interface element to request a customer-service session. Upon designation of the user-interface element on one of such handheld wireless devices, the request is forwarded to the central server. The central server establishes a two-way real-time communication link between the handheld wireless device and a customer-service representative.

A secure product display system and associated method can include a display secured with a lock, a dispenser including a digital key request code and an input configured to accept entry of a digital key, and an access cloud configured to transmit the digital key to a user device when the digital key is requested using the digital key request code, wherein the lock is unlocked when the digital key, entered with the input, is authentic.

A wireless transmitter for controlling a barrier operator includes at least one processor, an actuator, and a memory storing instructions. When executed by the at least one processor, the instructions cause the at least one processor to transmit a first data packet configured to initiate actuation of the barrier operator on a first channel and transmit the first data packet on a second channel. The transmission on the first channel may be performed in response to a first actuation of the actuator and the transmission on the second channel may be performed in response to a second actuation of the actuator. Alternatively, both transmissions may be performed in response to a single actuation of the actuator but switching from the first channel to the second channel may be performed in response to a passive input signal.

Provided is a multi-locking device including a locking device management unit configured such that, when a user requests same to grant a right to open/close a door, same converts information regarding a granted right regarding the door into a QR code, outputs same, and provides same to the user, a door locking device configured to receive the information regarding a granted right regarding the door from the locking device management unit, and a QR code reader unit configured to receive the QR code from the user and provide same to the door locking device.

An encrypted rolling code, a plurality of differing data bit order patterns, and a plurality of differing data inversion patterns are provided. One then selects a particular one of each of these patterns and uses those selected patterns as transmission characteristics when transmitting at least part of the encrypted rolling code.

The systems and methods provided herein use a rolling voice identifier in a multi-factor authentication system to avoid the security problems present in prior voice activated control systems. By implementing a rolling voice identifier in an access control platform, users may no longer need to be concerned with being overheard or recorded when providing voice authentication commands to an access control platform because the rolling voice identifier that the user will be prompted to speak will be specific to the particular instance of control of an access control platform. An access control platform is a platform that controls operation of a movable barrier by, for example, controlling the state of a movable barrier using a remote control. An access control platform may cause a movable barrier to become opened, closed, locked, or unlocked to permit or prevent access to a physical space by a physical object.