Abstract: Systems, machine-readable media, and methods to control deployment of IoT devices over wireless networks with an adaptive gateway are provided. A gateway device may broadcast on different channels in a first time slot of a time interval. The gateway device may receive a response from a sensor device in a second time slot of the time interval. The gateway device may further communicate to the sensor device in a third time slot of the time interval. The gateway device may receive transmissions from the sensor device in one or more subsequent instances of the fourth time slot of the time interval. Based at least in part on the one or more transmissions from the sensor device, the gateway device may transmit data to one or more computer systems via one or more networks.

Abstract: Systems, machine-readable media, and methods to control deployment of IoT devices over wireless networks with an adaptive gateway are provided. A gateway device may broadcast on different channels in a first time slot of a time interval. The gateway device may receive a response from a sensor device in a second time slot of the time interval. The gateway device may further communicate to the sensor device in a third time slot of the time interval. The gateway device may receive transmissions from the sensor device in one or more subsequent instances of the fourth time slot of the time interval. Based at least in part on the one or more transmissions from the sensor device, the gateway device may transmit data to one or more computer systems via one or more networks.

Abstract: The present invention is directed toward secure access systems. Specifically, a method and system is provided that enhances the security of unidirectional communication protocols used in access control systems, such as the Wiegand protocol. The enhancements may include obfuscation of data, a two-way packet-mode communications, and blind synchronization of pseudo-random number generators.

Abstract: The present invention is directed toward secure access systems. Specifically, a method, system, and device are described that employ a synchronized pseudo-random number generator to secure communications between endpoints involved in a communication. If synchronization is lost between two devices, the two devices can regain synchronization by switching to use of a different pseudo-random number generator that is used for resynchronization instead of communications.

Abstract: The present invention is directed toward secure access systems. Specifically, a method and system is provided that enhances the security of unidirectional communication protocols used in access control systems, such as the Wiegand protocol. The enhancements may include obfuscation of data, a two-way packet-mode communications, and blind synchronization of pseudo-random number generators.

Abstract: The present invention is directed toward secure access systems. Specifically, a method and system is provided that enhances the security of unidirectional communication protocols used in access control systems, such as the Wiegand protocol. The enhancements may include obfuscation of data, a two-way packet-mode communications, and blind synchronization of pseudo-random number generators.

Abstract: A reader for an RFID system includes an antenna assembly, a signal driver and a controller. The antenna assembly has an antenna coupled to an antenna tuning circuit which includes a variable capacitance circuit. The signal driver is coupled to the antenna assembly to apply a drive signal to the antenna assembly. The controller is coupled to the antenna assembly to determine a difference between an antenna impedance and a signal driver impedance and to set the variable capacitance at a set capacitance value which reduces the impedance difference.

Abstract: A reader for an RFID system includes an antenna assembly, a signal driver and a controller. The antenna assembly has an antenna coupled to an antenna tuning circuit which includes a variable capacitance circuit. The signal driver is coupled to the antenna assembly to apply a drive signal to the antenna assembly. The controller is coupled to the antenna assembly to determine a difference between an antenna impedance and a signal driver impedance and to set the variable capacitance at a set capacitance value which reduces the impedance difference.

Abstract: Methods and apparatus for provisioning the use of multiple readers and/or wireless communication protocols within a defined area are provided. More specifically, a coordinator or the like can be used to manage the activation and deactivation of the multiple readers and/or communication protocols within a single reader such that interference between disparate technologies is avoided.