Abstract: A wireless communications system may include a plurality of wireless communications devices and a wireless device locator. More particularly, the wireless device locator may include at least one antenna and a transceiver connected thereto, and a controller for cooperating with the transceiver for transmitting a plurality of location finding signals to a target wireless communications device from among the plurality thereof. The target device may transmit a respective reply signal for each of the location finding signals. Additionally, the controller may also cooperate with the transceiver for receiving the reply signals, and it may determine a propagation delay associated with the transmission of each location finding signal and the respective reply signal therefor based upon a known device latency of the target device. As such, the controller may estimate a range to the target device based upon a plurality of determined propagation delays.

Abstract: The wireless communications system includes a plurality of wireless communications devices, with each device type having a known latency profile associated therewith. A wireless device detector includes a controller for cooperating with a transceiver for transmitting a plurality of device finding signals to a target wireless communications device. The target wireless communications device transmits a respective reply signal for each of the device finding signals. Also, the controller generates an observed latency profile for the target wireless communications device based upon the transmission of device finding signals and the received reply signals therefor, determines a propagation delay based upon the observed latency profile and the known latency profile, and estimates a range to the target wireless communications device based upon the determined propagation delay.

Abstract: A secure wireless local or metropolitan area network and data communications device therefor are provided, where the device transmits plain text in an encrypted message including cipher text and an initialization vector. The device may include a seed generator for performing a one-way algorithm using a secret key, a device address, and a changing reference value for generating a seed. Further, a random initialization vector (IV) generator may be included for generating a random IV, and a key encryptor may generate a key sequence based upon the seed and the random IV. Additionally, a logic circuit may be included for generating cipher text based upon the key sequence and plain text, and a wireless communications device may be connected to the logic circuit and the random IV generator for wirelessly transmitting the encrypted message.

Abstract: A wireless communications system may include a plurality of wireless communications devices and a wireless device locator. More particularly, the wireless device locator may include at least one antenna and a transceiver connected thereto, and a controller for cooperating with the transceiver for transmitting a plurality of location finding signals to a target wireless communications device from among the plurality thereof. The target device may transmit a respective reply signal for each of the location finding signals. Additionally, the controller may also cooperate with the transceiver for receiving the reply signals, and it may determine a propagation delay associated with the transmission of each location finding signal and the respective reply signal therefor based upon a known device latency of the target device. As such, the controller may estimate a range to the target device based upon a plurality of determined propagation delays.