Telcordia Technologies

About: Telcordia Technologies is a based out in . It is known for research contribution in the topics: Network packet & Node (networking). The organization has 3097 authors who have published 4737 publications receiving 237882 citations.

Chapter 5 – The Accurate Determination of Optical Properties by Ellipsometry

Abstract: Publisher Summary Electromagnetic theory aids in understanding the different techniques used to determine optical properties of materials. It is noted that if the electromagnetic wave is reflected by a smooth surface, the outgoing wave can be represented in the absence of anisotropic effects in another local coordinate system. Wherein, both the local coordinate systems the x axes are in the plane of incidence, the y axis is perpendicular to the plane of incidence, and the z axes define the plane of incidence. Four parameters—namely, two amplitudes and two phases are necessary to completely describe the incoming wave to describe the sample. The properties of the sample therefore are obtainable, if the properties of both incident and reflected waves are known. Reflectometry and ellipsometry are essentially two techniques for obtaining this information. For isotropic samples ellipsometry is strictly a nonnormal-incidence technique, while reflectometry and polarimetry can be performed at either normal or nonnormal incidence. Reflectometry deals with intensities and is therefore a power measurement, while ellipsometry deals with intensity-independent complex quantities and is therefore more nearly analogous to an impedance measurement.

Data labeling technique for high performance protocol processing

Abstract: In accordance with the present invention, data is transmitted through a network in chunks. Chunks are self-describing units designed for high speed protocol processing. Packets act as envelopes for carrying chunks across a network. The self-describing nature of chunks allow them to be processed as they arrive at the receiver regardless of any misordering. The ability to process data without intermediate buffering for reordering or reassembly improves protocol processing performance. The chunks also distribute protocol data units control overhead over multiple packets.

Microstructure of in situ epitaxially grown superconducting Y‐Ba‐Cu‐O thin films

Abstract: The microstructure of in situ epitaxially grown Y‐Ba‐Cu‐O thin films on (001) SrTiO3 substrates was studied using cross‐sectional transmission electron microscopy. The films, prepared by pulsed laser deposition at substrate holder temperature of 650 °C without post‐annealing, exhibit zero resistivity above 90 K and critical currents exceeding 106 A/cm2 at 77 K. The films are of heavily faulted single crystalline structure with the c axis approximately perpendicular to the substrate (001) surface. We suggest that, due to the fast quenching and low substrate temperature, crystalline defects and chemical fluctuations are locked into a faulted structure after each laser pulse. Despite their rather imperfect microstructure, the films are free from macroscopic grain boundaries and secondary phases and possess superb superconducting properties.

Methods and apparatus for interfacing with application programs to manage multimedia multiparty communications

Abstract: A system connected to a network for controlling multiparty, multimedia calls having three components. The first component sends and receives multiparty, multimedia calls. The second component stores building blocks representing the multiparty, multimedia calls. The building blocks include objects, which correspond to different aspects of multiparty, multimedia calls, and relationships between the objects. The third component monitors the objects and their relationships, and notifies when changes occur in the objects or their relationships.

On Concurrent Zero-Knowledge with Pre-processing

Abstract: Concurrent Zero-Knowledge protocols remain zero-knowledge even when many sessions of them are executed together. These protocols have applications in a distributed setting, where many executions of the same protocol must take place at the same time by many parties, such as the Internet. In this paper, we are concerned with the number of rounds of interaction needed for such protocols and their efficiency. Here, we show an efficient constant-round concurrent zero-knowledge protocol with preprocessing for all languages in NP, where both the preprocessing phase and the proof phase each require 3 rounds of interaction. We make no timing assumptions or assumptions on the knowledge of the number of parties in the system. Moreover, we allow arbitrary interleavings in both the preprocessing and in the proof phase. Our techniques apply to both zero-knowledge proof systems and zero-knowledge arguments and we show how to extend our technique so that polynomial number of zero-knowledge proofs/arguments can be executed after the preprocessing phase is done.