Abstract: At least one exemplary embodiment of the present invention includes a method comprising providing an input signal from a first differential temperature sensor to a first primary coil of a transformer, and detecting a transient signal from a secondary coil of the transformer, said transient signal arising upon a halting of the input signal.
Type:
Grant
Filed:
December 5, 2002
Date of Patent:
June 21, 2005
Inventors:
Kenneth C. Sloneker, Donald Polsky, Anatoly Zhagrov
Abstract: A system and method for searching websites that uses category information to narrow the range of a website content search. Website content is retrieved through a network and stored. A user starts a search by selecting a category or categories in which information pertinent to the user's needs is likely to be found. The user then performs a keyword search on the content of websites that fall within the selected category or categories. The results of this category-content search are sent and displayed to the user.
Type:
Grant
Filed:
February 24, 2003
Date of Patent:
June 14, 2005
Assignee:
AT&T Corp.
Inventors:
Joseph R. Barrera, William Andrew Boyajian, Leonard Mark Canale, Don Fichter, William R. Kamm
Abstract: A computer-assisted method is disclosed for determining a potential effectiveness of a survey question. The disclosed method includes segregating a plurality of responses to a survey question into a plurality of categories, and determining a response distribution for each of the plurality of categories. The disclosed method also includes calculating a box score and a difference score for the survey question from the response distributions, and using the box score and the difference score to obtain an effectiveness score for the survey question.
Type:
Grant
Filed:
May 31, 2001
Date of Patent:
May 17, 2005
Assignee:
Rosetta Marketing Strategies Group
Inventors:
Lawrence J. Choi, Christopher B. Kuenne, Kurt E. Holstein, II
Abstract: Traffic measurement should make it possible to obtain the spatial flow of traffic through the domain, i.e., the paths or trajectories followed by packets between any ingress and egress point of the domain. A method of sampling packet trajectories in a packet switching network allows the direct inference of traffic flows through a measurement domain by observing the trajectories of a subset of all packets traversing the network. A method which assumes that the measurement domain does not change comprises the steps of selecting packets for sampling in accordance with a sampling function of the packet content and generating a practically unique label for each sampled packet. The method does not rely on routing state, its implementation cost is small, and the measurement reporting traffic is modest and can be controlled precisely. Using the same hash function will yield the same sample set of packets in the entire domain, and enables us to reconstruct packet trajectories.
Type:
Grant
Filed:
October 16, 2000
Date of Patent:
March 29, 2005
Assignee:
AT&T Corp.
Inventors:
Nicholas G. Duffield, Matthias Grossglauser
Abstract: A blade sharpening method and apparatus is characterized by sharpening the blade in a single station grinding assembly. The grinding assembly includes two opposed abrading wheels which interlock to form a nip for sharpening the blade. The wheels each include a first coarse portion for roughing an edge of the blade, a second fine portion for finishing the hone facet, and a third coarse portion for forming other facets adjacent to the hone facet. The wheels are specially contoured and have parallel axes tilted relative to the direction of travel of the blade. The striations formed on the facets of the blade by the abrading wheels extend at the same angle in both facets.
Abstract: A stream manager provides a way of redirecting and managing messaging and information access in a packet network environment. The stream manager can include a computer-based router or server that behaves as if it were a gateway for a sub-network of destination site servers, and the stream manager is linked to a packet network, such as the Internet. The stream manager receives over the packet network a message from a user's host server initiated by a user and intended for a destination site. The message bears an address for the stream manager which is provided to the host server by the address server for the packet network, such as a server utilized as part of the domain name system. The stream manager determines the availability of at least one destination server at the destination site to receive and process the message.
Type:
Grant
Filed:
July 20, 1998
Date of Patent:
February 1, 2005
Assignee:
AT&T Corp.
Inventors:
Steven Lloyd Greenspan, Richard H. Janow
Abstract: An all-silicon nonlinear transmission line (NLTL) is integrated with a pulse-forming circuit in the form of a reverse-biased diode. Relatively short, e.g., 27 ps, optical signals can be generated from the all-silicon NLTL circuit by laser modulation of the electrical NTLT output in an electro-optical system.
Abstract: A method is disclosed for managing a parking lot. In one disclosed embodiment, the method includes receiving parking lot data. The embodiment of the disclosed method also includes transforming the parking lot data into parking lot information, the parking lot information including information about a moving parking lot object. Further, the embodiment of the disclosed method includes transmitting a map of the parking lot to a mobile interaction device, and transmitting the parking lot information to the mobile interaction device.
Abstract: At least one method is disclosed for transferring a chat session involving a mobile information device from a first chat server to a second chat server. The method includes receiving at the second chat server a transfer request. The method also includes establishing connectivity between the mobile information device and the second chat server, and releasing connectivity between the mobile information device and the first chat server.
Abstract: A system and method are disclosed for the repair of IP multicast sessions. A repair server polls multiple transmit servers to accumulate as many of the packets missing from the multicast session as possible. A network includes a source of multicast packets in a multicast session and a plurality of multicast recipients in that session. A repair server in the network provides the packets it receives to the recipients. The repair server includes a missing packet detector. There is a plurality of retransmit servers in the network buffering portions of the packets they respectively receive during the session. The repair server maintains an ordered list of the retransmit servers that are most likely to have buffered copies of packets missing from the session. When the repair server detects that there are packets missing from the session it has received, it uses the ordered list to sequentially request the missing packets from respective ones of the plurality of retransmit servers.
Type:
Grant
Filed:
December 27, 2002
Date of Patent:
August 24, 2004
Assignee:
AT&T Corp.
Inventors:
Nicholas Frank Maxemchuk, David McManamon, David Hilton Shur, Aleksandr Zelezniak
Abstract: 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.
Type:
Grant
Filed:
October 3, 2000
Date of Patent:
June 15, 2004
Assignee:
AT&T Corp.
Inventors:
John F. Murray, Christopher W. Rice, Harry R. Worstell
Abstract: A multiple access communication protocol includes an uplink channel and a downlink channel is disclosed. The uplink channel has a plurality of frames, such that each frame has a first selectable number of minislots and a second selectable number of slots. A reservation request of a first type is sent into a first selected minislot of a selected frame of the uplink channel when information of a first type is to be sent. The reservation request of the first type requests an assignment for at least one slot for transmitting information of the first type in at least one frame that is subsequent to the selected frame. A reservation request of the second type is sent into a second selected minislot of the selected frame when the second selected minislot is available in the selected frame and when information of a second type is to be sent.