Patent application number | Description | Published |
20080304831 | Mesh free-space optical system for wireless local area network backhaul - In wireless local area networks (WLANS) with a large number of access points, the provisioning and capacity of the WLAN backhaul network connecting the access points to a core network becomes a major issue in network design. Some network services call for access points to be deployed in high densities in a wide range of environments, including outdoor environments. Traditional backhaul networks using fixed media such as twisted pair cable, coax cable, or optical fiber, in many instances are not physically or economically viable. Disclosed are method and apparatus for connecting access points via a mesh network using free-space optical links. The free-space optical links may be supplemented with mm-wave links to increase reliability and capacity. | 12-11-2008 |
20090075618 | Multi-antenna/multi-receiver array diversity system - The present invention is a system for increasing Signal-to-Noise Ratio (SNR) in a wireless communication system comprising a plurality of antennas each antenna providing a signal, a device for selecting a subset of signals provided by the plurality of antennas, a maximum ratio combiner for summing the selected subset of signals provided by the plurality of antennas, and a decision device for measuring the selected subset of signals against a predefined threshold. The device for selecting the subset of signals is coupled to the plurality of antennas. The maximum ratio combiner is coupled to the selected subset of signals and the decision device for measuring the selected subset of signals against a predefined threshold. The decision device is coupled to the selecting device such that one selected signal of the selected subset of signals is replaced by an unused signal provided by the plurality of antennas. | 03-19-2009 |
20090279427 | Control of Quality of Service in Overlapping Basic Service Sets in Wireless Local Area Networks - Access priority for wireless devices located in an area in which radiofrequency (RF) coverage areas of a first wireless access point and a second wireless access point overlap is controlled by coordinating operation of the first wireless access point and the second wireless access point. The wireless devices access a common RF channel via a collision sense multiple access/collision avoidance mechanism. The probability of accessing the RF channel may be varied by adjusting the length of interframe spacings and the length of contention windows. The length of the interframe spacings and the length of the contention windows associated with the first access point and associated with the second access point are configured such that the probability of wireless devices associated with the first wireless access point accessing the RF channel is greater than the probability of wireless devices associated with the second wireless access point accessing the RF channel. | 11-12-2009 |
20100041339 | SPECTRUM MANAGEMENT SYSTEM FOR MUNICIPAL SPECTRUM USING GUIDED COGNITIVE RADIO - Described is a system and method for assigning a frequency to an access point in a wireless network comprising a plurality of access points. The system and method includes accessing a rule-base to obtain a set of rules for the wireless network, accessing a license database to obtain information about relevant wireless nodes in a region, creating a list of possible primary node frequencies from a list of frequencies associated with primary wireless nodes in the license database, creating a list of possible secondary node frequencies from a list of frequencies associated with secondary wireless nodes in the license database, identifying a list of clear frequencies from a set of unused frequencies, selecting a frequency from frequencies in the lists of possible primary node frequencies, possible secondary node frequencies, and clear frequencies and registering the frequency in the license database. | 02-18-2010 |
20100091819 | ARRANGEMENT FOR SYNCHRONIZING ACCESS POINTS IN WLAN USING DIRECT-SEQUENCE SPREAD SPECTRUM SIGNALING - An arrangement for providing synchronization between a number of overlapping area access points within a wireless LAN utilizes a Power over Ethernet (PoE) cable connection to transmit synchronization signals from a centralized hub/switch to each of the access points connected to the cable. The synchronization signal takes the form of a direct sequence spread spectrum (DS-SS) signal that is coupled onto the twisted pair used to provide the low voltage PoE signal to various powered devices. At each access point, a filter is used to remove the synchronization signal from the PoE transport, allowing for the group of access points to share a common beacon signal and allow for frequency re-use among the access points. The DS-SS signal is preferable created by a combination of a baseband signal and a set of separate pseudo noise (PN) sequences defining a precision phase (“pilot tone”) signal, a time mark (superframe/beacon) signal, and a time-of-day (real-time clock) signal. | 04-15-2010 |
20100246552 | METHOD AND APPARATUS FOR DELIVERING IPP2T (IP-PUSH-TO-TALK) WIRELESS LAN MOBILE RADIO SERVICE - A wireless subscriber terminal (ST) for use with IP push-to-talk (IPP2T) service using a wireless local area network (WLAN) operating in a plurality of modes, including a mobile terminal having an ability to communicate over the air to a wireless Access Point (AP), the mobile terminal further programmable to use conventional WLAN protocols, and a method for operating the wireless terminal are described. | 09-30-2010 |
20110033044 | Secure Open-Air Communication System Utilizing Multi-Channel Decoyed Transmission - A secure, open-air communication system utilizes a plurality of “decoy” data signals to hide one or more true data signals. The true data signal(s) are channel hopped with the plurality of decoy data signals to form a multi-channel “scrambled” output signal that is thereafter transmitted in an open-air communication system. The greater the number of decoy signals, the greater the security provided to the open-air system. Further security may be provided by encrypting both the true and decoy signals prior to scrambling and/or by utilizing a spatially diverse set of transmitters and receivers. Without the knowledge of the channel assignment(s) for the true signal(s), an eavesdropper may be able to intercept (and, with time, perhaps descramble) the open-air transmitted signals, will not be able to distinguish the true data from the decoys without also knowing the channel assignment(s). | 02-10-2011 |
20110194481 | ARCHITECTURE AND METHOD FOR USING IEEE S02.11-LIKE WIRELESS LAN SYSTEM TO EMULATE PRIVATE LAND MOBILE RADIO SYSTEM (PLMRS) RADIO SERVICE - An architecture is described for providing IP push-to-talk (IPP2T) service using a wireless local area network (WLAN) serving a plurality of subscriber terminals (STs), having at least one broadband access network terminal (BANT), the BANT coupled to and interacting with at least one of a plurality of Access Points (APs) via a local area network (LAN), the plurality of APs in communication with the plurality of subscriber terminals; a multicast-enabled network, the multicast-enabled network coupled to and interacting with at least one BANT via a broadband access network; an IP network coupled to, and interacting with, the multicast-enabled network via an edge router; and a WLAN mobile radio service (WLMRS) controller (WLMRSC) coupled to and interacting with the IP network via a multicast-enabled router (MR). | 08-11-2011 |
20110216749 | BROADBAND NETWORK WITH ENTERPRISE WIRELESS COMMUNICATION SYSTEM FOR RESIDENTIAL AND BUSINESS ENVIRONMENT - The present invention sets forth a network-centric service distribution architecture that integrates a wireless access system in the residence, SOHO, business or public environment through the use of a local broadband network, such as a Residential-Business Broadband Network (RBN), to the service provider's broadband transport network and to a service provider's broadband packet network. The system includes Media Terminal Adapter is coupled via the RBN to the access port(s) and via the service provider's broadband transport network to the service provider's broadband packet network. The access port is coupled to the Media Terminal Adapter via either a RBN (e.g., a Local Area Network—LAN) or simply via a traditional POTS line interface. The access port receives and sends wireless signals to a plurality of RBN devices, allowing the user to control theses devices remotely from the residence, business, SOHO or public environments. The integration of an RBN to a service provider's broadband packet network allows a subscriber to communicate at home and at the office with one communication device anytime anywhere. | 09-08-2011 |
20130064236 | Control of Quality of Service in Overlapping Basic Service Sets in Wireless Local Area Networks - Access priority for wireless devices located in an area in which radiofrequency (RF) coverage areas of a first wireless access point and a second wireless access point overlap is controlled by coordinating operation of the first wireless access point and the second wireless access point. The wireless devices access a common RF channel via a collision sense multiple access/collision avoidance mechanism. The probability of accessing the RF channel may be varied by adjusting the length of interframe spacings and the length of contention windows. The length of the interframe spacings and the length of the contention windows associated with the first access point and associated with the second access point are configured such that the probability of wireless devices associated with the first wireless access point accessing the RF channel is greater than the probability of wireless devices associated with the second wireless access point accessing the RF channel. | 03-14-2013 |
20130089242 | METHOD AND APPARATUS FOR EYE-SCAN AUTHENTICATION USING A LIQUID LENS - A method and apparatus for providing authentication using an adaptive liquid lens are disclosed. For example, in one embodiment, the method receives a request for authentication from a mobile endpoint device of a user, wherein the request comprises a first retinal image of the user captured using an adaptive liquid lens of the mobile endpoint device. The method obtains a second retinal image of the user, wherein the second retinal image is a stored retinal image of the user. The method authenticates the first retinal image against the second retinal image. In another embodiment, the method captures a first retinal image of a user via a mobile endpoint device of the user, wherein the mobile endpoint device comprises an adaptive liquid lens. The method then sends a request for authentication from the mobile endpoint device over a network, wherein the request comprises the first retinal image. | 04-11-2013 |
20130109428 | Resource Allocation for Channels with Imperfect Feedback | 05-02-2013 |
20130223839 | METHOD AND APPARATUS FOR PROVIDING COMMUNICATION USING A TERAHERTZ LINK - A method and apparatus for establishing a terahertz link using a multi-element lens array that comprises a liquid lens are disclosed. For example, the method receives detected terahertz signals from one or more detectors, where a liquid lens is deployed with each of the one or more detectors. The method determines, for each of the detected signals, if the detected signal is out of focus, and applies a corrective voltage to each liquid lens that corresponds to a detected terahertz signal that is out of focus, wherein the corrective voltage adjusts a focus of the detected signal. The method measures a signal-to-noise ratio of the detected signals, and establishing a terahertz link via at least one of the detected terahertz signals with a highest signal-to-noise ratio. | 08-29-2013 |
20130324068 | MULTI-ANTENNA/MULTI-RECEIVER ARRAY DIVERSITY SYSTEM - The present invention is a system for increasing Signal-to-Noise Ratio (SNR) in a wireless communication system comprising a plurality of antennas each antenna providing a signal, a device for selecting a subset of signals provided by the plurality of antennas, a maximum ratio combiner for summing the selected subset of signals provided by the plurality of antennas, and a decision device for measuring the selected subset of signals against a predefined threshold. The device for selecting the subset of signals is coupled to the plurality of antennas. The maximum ratio combiner is coupled to the selected subset of signals and the decision device for measuring the selected subset of signals against a predefined threshold. The decision device is coupled to the selecting device such that one selected signal of the selected subset of signals is replaced by an unused signal provided by the plurality of antennas. | 12-05-2013 |
20130336648 | METHOD AND APPARATUS FOR PROVIDING BEAM STEERING OF TERAHERTZ ELECTROMAGNETIC WAVES - A method and apparatus for establishing a terahertz link using a multi-element lens array that comprises a plurality of active beam steering device are disclosed. For example, the method receives detected terahertz signals from one or more detectors, where an active beam steering device is deployed with each of the one or more detectors, and determines, for each of the detected signals, if the detected signal is out of focus from a focus point. The method applies a corrective signal to each active beam steering device that corresponds to a detected terahertz signal that is out of focus from the focus point, wherein the corrective signal causes the detected signal to be redirected, and measures a signal-to-noise ratio of the detected signals. The method then establishes the terahertz link via at least one of the detected terahertz signals with a highest signal-to-noise ratio. | 12-19-2013 |
20130343310 | TRANSMIT ANTENNA SUBSET SELECTION FOR RETRANSMISSION - A transmit switched antenna system utilizes one of several antennas selection protocols combined with feedback from a receiving device to take advantage of time and space transmission for the same information. A transmit device transmits first information over a first subset of a set of antennas and receives and ACK or NAK from the receiver along with a channel quality indicator. If a NAK is received, the transmitter selects a next antenna subset for transmission, based on the antenna selection protocol utilized. One protocol randomly selects the next subset and does not require the channel quality indicator. Another protocol determines the next antenna subset based on channel quality history and a third protocol selects the next antennas subset based on expectation of retransmissions for different subsets. | 12-26-2013 |
20140094940 | SYSTEM AND METHOD OF DETECTION OF A MODE OF MOTION - A method includes processing sensor data received from one or more sensors based on the one or more signatures to produce processed data and determining a mode of motion associated with a movement of a user based on the processed data. | 04-03-2014 |
20140099594 | Methods, Systems, and Products for Monitoring Health - Methods, systems, and products monitor a person's regimen for medicinal and dietary restrictions. When the person's regimen requires a liquid medication or supplement, an oral instrument is commanded to dispense a dosage of fluid. The oral instrument stores a reservoir of the fluid. If the oral instrument is a spoon, for example, the spoon may automatically dispense cough syrup or other medicine. A toothbrush, likewise, may automatically dispense mouthwash. A sensor may confirm presence of the oral instrument in the person's mouth, thus ensuring the dosage of fluid is ingested. | 04-10-2014 |
20140101084 | Methods, Systems, and Products for Interfacing with Neurological and Biological Networks - Methods, systems, and products provide interfaces between intrahost networks and interhost networks within biological hosts. Neuroregional translations are performed to route communications to and from the biological hosts. Bioregional translations may also be performed to route communications to and from the biological hosts. | 04-10-2014 |
20140101296 | Methods, Systems, and Products for Prediction of Mood - Methods, systems, and products predict emotional moods. Predicted moods may then be used to configure devices and machinery. A communications device may be configured to a mood of a user. A car may adjust to the mood of an operator. Even assembly lines may be configured, based on the mood of operators. Machinery and equipment may thus adopt performance and safety precautions that account for varying moods. | 04-10-2014 |
20140101740 | Methods, Systems, and Products for Authentication of Users - Methods, systems, and products authenticate users for access to devices, applications, and services. Skills of a user are learned over time, such that an electronic model of random subject matter may be generated. The user is prompted to interpret the random subject matter, such as with a drawing, physical arrangement, or performance. The user's interpretation is then compared to the electronic model of the random subject matter. If the user is truly who they purport to be, their interpretation will match the electronic model, thus authenticating the user. If interpretation fails to match the electronic model, authentication may be denied. | 04-10-2014 |
20140162711 | Collecting And Analyzing Data In A Distributed Sensor Network - Concepts and technologies are disclosed herein for collecting and analyzing data in a distributed sensor network. The distributed sensor network can include a number of distributed sensor systems having data sources such as sensors, communication equipment, and/or other systems and components. The distributed sensor systems also can include lighting systems, if desired. The distributed sensor systems can collect data from the data sources and provide the data to a local or remote entity such as a data analysis engine. The data analysis engine can request data from the distributed sensor systems, receive the data, and analyze the data for various purposes. | 06-12-2014 |
20140171101 | DETERMINING A LOCATION OF A WIRELESS ENDPOINT DEVICE IN A WIRELESS NETWORK - A method, computer readable medium and apparatus for determining a location of a user endpoint device in a wireless network are disclosed. For example, the method receives from each of a plurality of base stations a plurality of signals and a plurality of times of arrival, wherein each of the plurality of times of arrival is associated with a particular signal of the plurality of signals, and determines the location of the wireless endpoint device from the plurality of signals and the plurality of times of arrival. | 06-19-2014 |
20140237577 | Methods, Systems, and Products for Authentication of Users - Methods, systems, and products authenticate users for access to devices, applications, and services. Skills of a user are learned over time, such that an electronic model of random subject matter may be generated. The user is prompted to interpret the random subject matter, such as with a drawing, physical arrangement, or performance. The user's interpretation is then compared to the electronic model of the random subject matter. If the user is truly who they purport to be, their interpretation will match the electronic model, thus authenticating the user. If interpretation fails to match the electronic model, authentication may be denied. | 08-21-2014 |
20140241383 | ARRANGEMENT FOR SYNCHRONIZING ACCESS POINTS IN WLAN USING DIRECT-SEQUENCE SPREAD SPECTRUM SIGNALING - An arrangement for providing synchronization between a number of overlapping area access points within a wireless LAN utilizes an Ethernet cable connection to transmit synchronization signals from a centralized hub/switch to each of the access points connected to the cable. The synchronization signal takes the form of a direct sequence spread spectrum (DS-SS) signal. | 08-28-2014 |
20140254465 | METHOD AND APPARATUS FOR DELIVERING IPP2T (IP-PUSH-TO-TALK) WIRELESS LAN MOBILE RADIO SERVICE - A broadband access network terminal comprising a hardware integrated circuit is disclosed. The hardware integrated circuit is for communicating with a plurality of access points. The plurality of access points is for communicating with a plurality of subscriber terminals via a wireless local area network. The hardware integrated circuit is further for communicating with a broadband access network. In addition, the broadband access network terminal comprises an Internet Protocol multicast enabled broadband access network terminal, The broadband access network terminal further supports an Internet Protocol push-to-talk service for the plurality of subscriber terminals via the wireless local area network and supports media stream mixing and multicasting of information associated with the Internet Protocol push-to-talk service. | 09-11-2014 |
20140254889 | METHOD AND APPARATUS FOR EYE-SCAN AUTHENTICATION USING A LIQUID LENS - A method and apparatus for providing authentication using an adaptive liquid lens are disclosed. For example, in one embodiment, the method receives a request for authentication from a mobile endpoint device of a user, wherein the request comprises a first retinal image of the user captured using an adaptive liquid lens of the mobile endpoint device. The method obtains a second retinal image of the user, wherein the second retinal image is a stored retinal image of the user. The method authenticates the first retinal image against the second retinal image. In another embodiment, the method captures a first retinal image of a user via a mobile endpoint device of the user, wherein the mobile endpoint device comprises an adaptive liquid lens. The method then sends a request for authentication from the mobile endpoint device over a network, wherein the request comprises the first retinal image. | 09-11-2014 |
20140290366 | METHOD AND SYSTEM FOR DETECTING AN AIRBORNE TRIGGER - An apparatus includes a cantilevered element including a coating material having an affinity for at least one compound. The apparatus further includes a first capacitive plate and a second capacitive plate that are each spaced from and capacitively coupled to the cantilevered element. The first capacitive plate is configured to induce a vibration in the cantilevered element at a frequency related to a mass of the cantilevered element. A frequency detector is coupled to the second capacitive plate to detect a change in vibrational frequency of the cantilevered element as a result of at least one particle of the at least one compound coupling to the coating material. | 10-02-2014 |
20140354479 | METHOD AND APPARATUS FOR DYNAMICALLY PROCESSING AN ELECTROMAGNETIC BEAM - A method and apparatus for processing a terahertz frequency electromagnetic beam are disclosed. For example, the method receives the terahertz frequency electromagnetic beam via a metamaterial having a plurality of addressable magnetic elements, where a resonant frequency of each of the plurality of addressable magnetic elements is capable of being programmably changed via an adjustment, and activates selectively a subset of the plurality of addressable magnetic elements to manipulate the terahertz frequency electromagnetic beam. | 12-04-2014 |
20140355433 | METHOD AND APPARATUS FOR SCHEDULING COMMUNICATION TRAFFIC FLOWS - In one or more embodiments of the disclosed technology, an Access Point (AP) schedules communication traffic flows or service tasks between an Access Point (AP) and one or more member stations in a Wireless Local Area Network (WLAN). The communication traffic flows or service tasks may include both control and management flows and data traffic flows. The communication traffic flows or service tasks may include traffic flows or streams of different types, each of which may have different service intervals. The order of service tasks can be changed from cycle to cycle, randomly, by rotation, or based on historical delay records. | 12-04-2014 |