AT&T CORPORATION Patent applications |
Patent application number | Title | Published |
20130013746 | METHOD AND APPARATUS FOR PROVIDING ACCESS OF NETWORK BASED RADIO FREQUENCY IDENTIFICATION INFORMATION - A method and apparatus for enabling consumers to scan RFID tags using home based endpoint devices that can transmit the scanned information to network based services are disclosed. Using the RFID scanned information, consumers can then access, retrieve and view additional information regarding products, in which RFIDs are embedded, on video display devices, such as televisions or video display monitors. This product related information can include interactive technical support, companion product information, or instructional guidelines. | 01-10-2013 |
20110196675 | OPERATING METHOD FOR VOICE ACTIVITY DETECTION/SILENCE SUPPRESSION SYSTEM - A VAD/SS system is connected to a channel of a transmission pipe. The channel provides a pathway for the transmission of energy. A method for operating a VAD/SS system includes detecting the energy on the channel, and activating or suppressing activation of the VAD/SS system depending upon the nature of the energy detected on the channel. | 08-11-2011 |
20110026928 | TRANSIENT CONTROL SOLUTION FOR OPTICAL NETWORKS - An optically amplified wavelength division multiplexing network has the functionality to add/drop channels at the optical add/drop multiplexing (OADM) nodes. The OADM node includes a receiver amplifier, an OADM module, and a transmitter amplifier. Once the OADM node detects a loss of signal (LOS) due to a fiber cut or network element failure upstream, the receiver amplifier is kept in operation as a noise source. The output of the receiver amplifier is immediately raised by increasing pump power to compensate for the LOS. The noise power received at the transmitter amplifier from the receiver amplifier is substantially equal to the signal power expected before LOS. The transient effect of downstream optical amplifiers is therefore completely suppressed and the inter-channel stimulated Raman scattering (SRS) induced spectrum tilt does not change. After the noise power is raised, the receiver amplifier may be shut down at a speed much slower than the speed of downstream amplifier control circuitry. | 02-03-2011 |
20100198959 | SYSTEM AND METHOD FOR TRACKING INDIVIDUALS ON A DATA NETWORK USING COMMUNITIES OF INTEREST - The current invention relates to a system and method for tracking or locating a target entity on a data network, such as the public Internet, by analyzing network traffic and communication among interacting network nodes. The invention describes a system of creating an information set of data related to the traffic patterns associated with a specific entity over a time period, and comparing the information set to other information related to the traffic patterns associated with a group of entities over the same time period. By excluding information that is common to both the specific entity and the group of entities from the information set, the information set is left with only the information that helps identify the specific entity on the network. | 08-05-2010 |
20080262711 | SYSTEM AND METHOD FOR DETERMINING TRAFFIC CONDITIONS - The present invention provides a method and apparatus for determining traffic conditions using wireless devices. A number of signals from the vehicles traveling in selected routes are received by several wireless communication networks via the wireless devices. The total number of signals received are used to compare if there are sufficient number of vehicles traveling on the selected routes. If so, then the location information of the moving vehicles at various times is determined by the wireless communication network and forwarded to a central computer. The central computer coordinates with the wireless communications network for information needed to compute traffic data. The central computer computes the velocity of the moving vehicles and a traffic profile is created based on the velocity and location information of the moving vehicles. Furthermore, the traffic profile is sent to the moving vehicles. | 10-23-2008 |
20080253281 | Bandwidth Management for MPLS Fast Rerouting - Certain exemplary embodiments provide a method comprising: in a network at a node located on a label switched path: selecting a backup path to respond to a failure; and for each link along the backup path, reserving a backup bandwidth, wherein the backup bandwidth is sufficient to reroute traffic around the failure. | 10-16-2008 |