Patent application number | Description | Published |
20090147768 | Synchronizing wireless local area network access points - In a wireless local area network, a first and second access point in which the RF coverage areas overlap are synchronized by positioning a monitor station within the overlap area. The monitor station receives beacon frames from both access points and records the arrival times. A manager in communication with both access points and the monitor station calculates a retardation interval and issues a control command to the second access point to retard transmission of its beacon frame. The retardation interval is calculated such that the contention-free period of the second access point does not overlap the contention-free period of the first access point. The manager may also issue control commands to the first and second access points to adjust their contention-free periods. | 06-11-2009 |
20090167522 | Method and apparatus for monitoring a material medium - A material medium, such as an optical fiber or electrical cable, is commonly used to carry services, such as telecommunications or energy service. The current invention identifies the following problems which may be encountered when monitoring a material medium. They are: (1) requiring a time and labor intensive investigation to find a fault, (2) needing a significant change in a current material medium infrastructure to support a monitoring effort, or (3) reducing available bandwidth in a material medium due to a monitoring device intruding into the material medium to send data. These problems are solved, in accordance with a feature of the current invention, by monitoring a material medium with at least one diagnostic sensor, and using an electromagnetic (EM) signal, such as radio frequency (RF), signal to wirelessly transmit the sensor data. The diagnostic sensor may measure the operational health of the material medium, or may measure local environmental conditions around the material medium. Using an EM signal, such as RF, to wirelessly transmit sensor data allows for a fast, low labor monitoring approach. Additionally, it avoids a need to either; (1) transfer the data by intruding into the monitored material medium, or (2) set up an independent material medium system to transfer the data. | 07-02-2009 |
20120044924 | Synchronizing Wireless Local Area Network Access Points - In a wireless local area network, a first and second access point in which the RF coverage areas overlap are synchronized by positioning a monitor station within the overlap area. The monitor station receives beacon frames from both access points and records the arrival times. A manager in communication with both access points and the monitor station calculates a retardation interval and issues a control command to the second access point to retard transmission of its beacon frame. The retardation interval is calculated such that the contention-free period of the second access point does not overlap the contention-free period of the first access point. The manager may also issue control commands to the first and second access points to adjust their contention-free periods. | 02-23-2012 |
20120089367 | Method and Apparatus for Monitoring a Material Medium - A material medium, such as an optical fiber or electrical cable, is used to carry services. The material medium is monitored with at least one diagnostic sensor. The diagnostic sensor may measure the operational health of the material medium, or may measure local environmental conditions around the material medium. | 04-12-2012 |
20130259018 | Devices, Systems, and/or Methods for Managing Wireless Networks - A method includes receiving a beacon message at a wireless network device. The beacon message is followed by a beacon time interval. The method further includes receiving a thin beacon message during the beacon time interval. The thin beacon message is followed by a thin beacon time interval that is shorter than the beacon time interval. The thin beacon time interval includes a contention-free period, a contention period, or a combination thereof. | 10-03-2013 |
20130294438 | Synchronizing Wireless Local Area Network Access Points - In a wireless local area network, a first and second access point in which the RF coverage areas overlap are synchronized by positioning a monitor station within the overlap area. The monitor station receives beacon frames from both access points and records the arrival times. A manager in communication with both access points and the monitor station calculates a retardation interval and issues a control command to the second access point to retard transmission of its beacon frame. The retardation interval is calculated such that the contention-free period of the second access point does not overlap the contention-free period of the first access point. The manager may also issue control commands to the first and second access points to adjust their contention-free periods. | 11-07-2013 |
20160088656 | DEVICES, SYSTEMS, AND/OR METHODS FOR MANAGING WIRELESS NETWORKS - A method includes transmitting a first message during a first time interval of a frame from a device. Transmission of the first message is followed by a second time interval of the frame. The method further includes transmitting a second message during the second time interval. The second message is followed by a third time interval that is shorter than the second time interval. The third time interval includes a contention-free period, a contention period, or a combination thereof. | 03-24-2016 |
Patent application number | Description | Published |
20100098041 | Intra-Premises Wireless Broadband Service Using Lumped and Distributed Wireless Radiation From Cable Source Input - A premises, connected to receive broadband service(s) and also connected to a cable system, is provided with a broadband interface which connects to in-premises cabling which is coupled to consumer receivers such as a television sets, PDAs, laptops. Connected to the broadband interface is an adjunct device which channels broadband, data and voice signals supplied to an in-premises wireless system as distinguished from the signals supplied to the cable connected consumer receivers. The adjunct device formats the broadband and voice signals or any broadband service into packet format suitable for signal radiation and couples them to the in-premises coax cabling, via a diplexer, at a first selected location. At a second cable location a second diplexer, connected to the cable, separates the broadband, data and voice signals and couples them to a signal radiation device (i.e., an RF antenna or leaky coaxial cable) which radiates the signal to the immediate surrounding location. Various devices, near to the second cable location for specific services, receive the wireless signals (i.e., broadband, data and voice) from the radiating antenna. | 04-22-2010 |
20100150116 | Method and Apparatus for Adjusting EDCA Channel Access Parameters - A contention based communications channel access method emulates scheduled access by dynamically updating Enhanced Distribution Channel Access (EDCA) parameters for groups of member stations in a Wireless Local Area Network (WLAN). | 06-17-2010 |
20110069646 | INTRA-PREMISES WIRELESS BROADBAND SERVICE USING LUMPED AND DISTRIBUTED WIRELESS RADIATION FROM CABLE SOURCE INPUT - A system that incorporates teachings of the present disclosure may include, for example, an apparatus that includes a communication interface for receiving broadband signals and for transmitting RF frequency signals to a diplexer located within a premises via cabling where the RF frequency signals are configured for distribution to signal radiation devices of the premises via the diplexer and where the RF frequency signals are configured for being radiated by the signal radiation devices to at least one wireless device; and a controller for generating packetized signals from the received broadband signals at a first frequency and for modulating the packetized signals at a second frequency, wherein the RF frequency signals comprise the modulated packetized signals at the second frequency. Additional embodiments are disclosed. | 03-24-2011 |
20110132658 | Using surface wave propagation to communicate an information-bearing signal through a barrier - The RF signal generated by a ZigBee radio on the outside of a building structure is conveyed to the interior of the building by guiding it along an electric cable bundle that passes through the building's wall to supply domestic electric power to the interior of the structure. The RF signal is launched by a unique coupler comprising a pair of insulated foil conductors. | 06-09-2011 |
20110133865 | Technique for conveying a wireless-standard signal through a barrier - The RF signal generated by a ZigBee radio on the outside of a building structure is conveyed to the interior of the building by guiding it along an electric cable bundle that passes through the building's wall to supply domestic electric power to the interior of the structure. The RF signal is launched by a unique coupler comprising a pair of insulated foil conductors. | 06-09-2011 |
20110133867 | Surface wave coupler - The RF signal generated by a ZigBee radio on the outside of a building structure is conveyed to the interior of the building by guiding it along an electric cable bundle that passes through the building's wall to supply domestic electric power to the interior of the structure. The RF signal is launched by a unique coupler comprising a pair of insulated foil conductors. | 06-09-2011 |
20110136432 | Using an electric power cable as the vehicle for communicating an information-bearing signal through a barrier - The RF signal generated by a ZigBee radio on the outside of a building structure is conveyed to the interior of the building by guiding it as a surface wave along an electric cable bundle that passes through the building's wall to supply domestic electric power to the interior of the structure. The RF signal is launched by a unique coupler comprising a pair of insulated foil conductors. | 06-09-2011 |
20110148647 | Manhole Security Device and Methods Thereof - A security device for detecting the position of a manhole cover includes a pinger device, such as an acoustic pinger, that transmits a signal in the direction of the expected position of the manhole cover. The device takes energy samples to determine if the signal has been reflected back by the manhole cover. If the device determines the signal has not been reflected, it determines that the manhole cover has been moved from the expected position. In response, the device captures an image of an area around the expected position of the manhole cover. In addition, the device can notify a remote security station via a network that the manhole cover has been moved. | 06-23-2011 |
20120030229 | Methods, Systems, and Products for Measuring Health - Methods, systems, and products measure health data related to a user. A time-stamped device identifier is received that uniquely identifies a communications device. A time-stamped sensor measurement is separately-received. A difference in time between the time-stamped device identifier and the time-stamped sensor measurement is determined. When the difference in time is within a window of time, then the sensor measurement is associated with the device identifier. | 02-02-2012 |
20130076460 | Technique for Conveying a Wireless-Standard Signal Through a Barrier - The RF signal generated by a ZigBee radio on the outside of a building structure is conveyed to the interior of the building by guiding it along an electric cable bundle that passes through the building's wall to supply domestic electric power to the interior of the structure. The RF signal is launched by a unique coupler comprising a pair of insulated foil conductors. | 03-28-2013 |
20130093884 | Manhole Security Device and Methods Thereof - A security device for detecting the position of a manhole cover includes a pinger device, such as an acoustic pinger, that transmits a signal in the direction of the expected position of the manhole cover. The device takes energy samples to determine if the signal has been reflected back by the manhole cover. If the device determines the signal has not been reflected, it determines that the manhole cover has been moved from the expected position. In response, the device captures an image of an area around the expected position of the manhole cover. In addition, the device can notify a remote security station via a network that the manhole cover has been moved. | 04-18-2013 |
20140137166 | INTRA-PREMISES WIRELESS BROADBAND SERVICE USING LUMPED AND DISTRIBUTED WIRELESS RADIATION FROM CABLE SOURCE INPUT - A system that incorporates teachings of the present disclosure may include, for example, includes a broadband signal access point, which may be located internally or externally to the premises, in combination with the existing cabling is used with radiation device(s) to provide distribution of services, including broadband services, within the premises. Additional embodiments are disclosed. | 05-15-2014 |
20140163898 | Methods, Systems, and Products for Measuring Health - Methods, systems, and products measure health data related to a user. A time-stamped device identifier is received that uniquely identifies a communications device. A time-stamped sensor measurement is separately received. A difference in time between the time-stamped device identifier and the time-stamped sensor measurement is determined. When the difference in time is within a window of time, then the sensor measurement is associated with the device identifier. | 06-12-2014 |