Abstract: Disclosed systems and methods configure a plurality of wireless access points to perform probe request handling operations including, responsive to receiving a probe request from a mobile device, relaying the probe request to a network controller, and responsive to receiving a probe response from the network controller, relaying the probe response to the mobile device. The network controller is configured to provide the mobile device with a multipoint wireless network by identifying two or more of the plurality of wireless access points as selected access points for multipoint transmission with the mobile device, coordinating the selected access points to allow simultaneous transmissions to the mobile device from each of the selected access points, and forwarding a probe response indicative of the selected access points to the selected access points.

Abstract: Disclosed virtual wireless networks include a network controller interconnected with wireless access points by a broadband backbone. The controller may include or interface with a gateway coupling the virtual network to the Internet via one or more interim networks. The broadband backbone includes network switches and broadband interconnects interconnecting the wireless access points and the network controller. The broadband backbone may be implemented as an optical backbone and the broadband interconnects may include one or more optical fiber interconnects. The network controller may control the manner in which mobile devices connect to wireless access points. The network controller may configure the wireless access points to present, to mobile devices within the isolated environment, the plurality of physical wireless cells provided by the plurality of individual wireless access points as a single virtual wireless network.

Abstract: Disclosed virtual wireless networks include a network controller interconnected with wireless access points by a broadband backbone. The controller may include or interface with a gateway coupling the virtual network to the Internet via one or more interim networks. The broadband backbone includes network switches and broadband interconnects interconnecting the wireless access points and the network controller. The broadband backbone may be implemented as an optical backbone and the broadband interconnects may include one or more optical fiber interconnects. The network controller may control the manner in which mobile devices connect to wireless access points. The network controller may configure the wireless access points to present, to mobile devices within the isolated environment, the plurality of physical wireless cells provided by the plurality of individual wireless access points as a single virtual wireless network.

Abstract: Disclosed virtual wireless networks include a network controller interconnected with wireless access points by a broadband backbone. The controller may include or interface with a gateway coupling the virtual network to the Internet via one or more interim networks. The broadband backbone includes network switches and broadband interconnects interconnecting the wireless access points and the network controller. The broadband backbone may be implemented as an optical backbone and the broadband interconnects may include one or more optical fiber interconnects. The network controller may control the manner in which mobile devices connect to wireless access points. The network controller may configure the wireless access points to present, to mobile devices within the isolated environment, the plurality of physical wireless cells provided by the plurality of individual wireless access points as a single virtual wireless network.

Abstract: Wireless communication of information from an access control device to a mobile communications device is disclosed. The mobile communications device is capable of communicating with at least two transmitters. The at least two transmitters include i) a first transmitter located at a first access controlled door that transmits first BLE beacons; and a ii) second transmitter located at a second access controlled door that transmits second BLE beacons. The mobile communications device includes a Bluetooth communication module that is configured to receive a plurality of BLE beacons, including the first BLE beacons and the second BLE beacons, from the at least two transmitters at different locations on a same floor within a premises.

Abstract: A disclosed system quantifies the power distribution of a wireless signal within a constrained environment using non-sequential ray tracing. For each ray, one or more ray-reflecting surface is prescreened to identify collision-eligible surfaces and identify a collision surface from the collision-eligible surfaces, wherein the collision surface is the first ray-reflecting surface that a ray collides with. A power distribution component, indicating the position and power of a ray at a particular elevation within the environment, is added to a cumulative power distribution. If a reflected ray corresponding to each collision is calculated and satisfies ray eligibility conditions, a collision surface may be determined for the reflected ray. Collision surfaces may be identified by evaluating a target function for a number of ray positions, where the target function evaluates to zero when displacement between the ray and the ray-reflecting surface is zero.

Abstract: A disclosed system quantifies the power distribution of a wireless signal within a constrained environment using non-sequential ray tracing. For each ray, one or more ray-reflecting surface is prescreened to identify collision-eligible surfaces and identify a collision surface from the collision-eligible surfaces, wherein the collision surface is the first ray-reflecting surface that a ray collides with. A power distribution component, indicating the position and power of a ray at a particular elevation within the environment, is added to a cumulative power distribution. If a reflected ray corresponding to each collision is calculated and satisfies ray eligibility conditions, a collision surface may be determined for the reflected ray. Collision surfaces may be identified by evaluating a target function for a number of ray positions, where the target function evaluates to zero when displacement between the ray and the ray-reflecting surface is zero.

Abstract: Wireless communication of information from an access control device to a mobile communications device is disclosed. The mobile communications device is capable of communicating with at least two transmitters. The at least two transmitters include i) a first transmitter located at a first access controlled door that transmits first BLE beacons; and a ii) second transmitter located at a second access controlled door that transmits second BLE beacons. The mobile communications device includes a Bluetooth communication module that is configured to receive a plurality of BLE beacons, including the first BLE beacons and the second BLE beacons, from the at least two transmitters at different locations on a same floor within a premises.

Abstract: A mid-infrared cascading fiber amplifier device having a source configured to generate a first electromagnetic wave output at a first frequency, a fiber coupled to the source and a pump coupled to the fiber and configured to generate a second electromagnetic wave output at a second frequency, wherein the second frequency is higher than the first frequency and causes the fiber to undergo two or more transitions in response to stimulation by the first electromagnetic wave output at the first frequency, wherein the first transition generates the first electromagnetic wave output approximately at the first frequency and the second transition generates the first electromagnetic wave output approximately at the first frequency.

Abstract: Wireless communication of information from an access control device to a mobile communications device is disclosed. The mobile communications device is capable of communicating with at least two transmitters. The at least two transmitters include i) a first transmitter located at a first access controlled door that transmits first BLE beacons; and a ii) second transmitter located at a second access controlled door that transmits second BLE beacons. The mobile communications device includes a Bluetooth communication module that is configured to receive a plurality of BLE beacons, including the first BLE beacons and the second BLE beacons, from the at least two transmitters at different locations on a same floor within a premises.

Abstract: Wireless communication of information from an access control device to a mobile communications device is disclosed. The mobile communications device is capable of communicating with at least two transmitters. The at least two transmitters include i) a first transmitter located at a first access controlled door that transmits first BLE beacons; and a ii) second transmitter located at a second access controlled door that transmits second BLE beacons. The mobile communications device includes a Bluetooth communication module that is configured to receive a plurality of BLE beacons, including the first BLE beacons and the second BLE beacons, from the at least two transmitters at different locations on a same floor within a premises.

Abstract: A mid-infrared cascading fiber amplifier device having a source configured to generate a first electromagnetic wave output at a first frequency, a fiber coupled to the source and a pump coupled to the fiber and configured to generate a second electromagnetic wave output at a second frequency, wherein the second frequency is higher than the first frequency and causes the fiber to undergo two or more transitions in response to stimulation by the first electromagnetic wave output at the first frequency, wherein the first transition generates the first electromagnetic wave output approximately at the first frequency and the second transition generates the first electromagnetic wave output approximately at the first frequency.

Abstract: Wireless communication of information from an access control device to a mobile communications device is disclosed. The mobile communications device is capable of communicating with at least two transmitters. The at least two transmitters include i) a first transmitter located at a first access controlled door that transmits first BLE beacons; and a ii) second transmitter located at a second access controlled door that transmits second BLE beacons. The mobile communications device includes a Bluetooth communication module that is configured to receive a plurality of BLE beacons, including the first BLE beacons and the second BLE beacons, from the at least two transmitters at different locations on a same floor within a premises.

Abstract: Several embodiment of a telephone device having a cradle and a headset assembly are disclosed. Each headset has spring biased members to firmly hold the headset on a person's head which device frees the hands when listening thereto or talking therein. In one embodiment, the headset has first and second resilient, spring-biased retractable bars having respective outer ends fixedly connected to respective first and second ear speakers. Other embodiments use bar shaped or square shaped elements to hold the speakers and mechanical arrangements to extend or retract the bar shaped or square shaped elements. The headset embodiments are disclosed for use with conventional telephone systems that have telephone lines or cords to cradles or for use with remote or cordless systems that can be used for cellular or non-cellular telephone systems.