Lucent Technologies Inc.

Other

Raytheon Company

Agere Systems Guardian Corp.

Richard Adam Cesari

Thomas Baker

Xiao-an Wang

Michael Menefee

Ravi Kumar Kolagotla

Sivanand Simanapalli

Mitchell B Haeri

Timothy G Brauer

Hector M Reyes, Jr

Kenneth K Colson

Michael C Menefee

A cleaning composition comprises between about 10% to about 50% of at least one organic solvent comprising vegetable oil. The composition further comprises between about 2% to about 20% of at least one co-solvent. The composition further comprises at least one water-in-oil emulsifier and non-ionic surfactant. The composition also comprises at least one anionic surfactant and between about 20% to about 60% of water.

Non-toxic hand cleaner comprising a ternary solvent mixture

In one embodiment, detecting a target includes directing a laser beam towards an area and detecting the laser beam reflected from the area. Whether the received laser beam comprises an optically augmented reflection indicating retro-reflection from a target is determined. The target indicates presence of an explosive device. The target is detected if the received laser beam comprises the optically augmented reflection.

Detecting a target using an optical augmentation sensor

Efficient filter implementation

Device for generating multiple spreading sequences in reverse high speed data channels

A receiver for a spread spectrum communication system is disclosed in which a transmitter transmits a data signal to a receiver includes a memory for storing digital representation of the data signal received by the receiver. A memory input addressing unit defines a circulating data window. A first ring shift register circulates a first set of components of a spreading code. A second ring shift register circulates a second set of components of a spreading code. A selector selects one of the first set of components or the second set of components as selected components of the spreading code and an adder receives as inputs digital representations of the data signal from the circulating data window and the selected components of the spreading code. The adder provides an output that is the dot product of the inputs.

Digital communication system for high-speed complex correlation

A method of efficient branch metric computation for a Viterbi convolutional decoder wherein a reduced and optimized set of branch metrics is distributed among one or more base sets is provided. A sequence of data transformations and associations are defined according to the connections of the delay elements in the convolutional encoder to its outputs. Each encoder state is associated with one of the base sets and one of several groups of path metric equations. During the add portion of the add-compare-select phase of Viterbi decoding, a branch metric value is extracted from the base set associated with the encoder state being evaluated. The group of path metric equations associated with state being evaluated are evaluated using the extracted branch metric value. The results of the addition are then be processed according to the remaining steps of the Viterbi algorithm.

Method of efficient branch metric computation for a Viterbi

There is disclosed a method and apparatus for computing branch metrics that are combinations of autocorrelation and cross correlation terms are constructed by first calculating and storing components of the autocorrelation and cross correlation terms at a symbol instant. Once calculated and stored, predetermined ones of the autocorrelation components and the cross correlation components are selected. The selected autocorrelation components and cross correlation components, or their inverse as predetermined, are combined to produce a branch metric. Other predetermined combinations of the stored components of autocorrelation and cross correlation terms, or their inverse, are combined to produce other branch metrics at the same symbol instant. All branch metrics associated with the symbol instant can be calculated in this manner. The components of the autocorrelation terms and cross correlation terms associated with the next symbol instant are calculated and stored, and the process of generating the branch metrics repeated.

Viterbi decoder with reduced metric computation

Growing community of inventors

Dallas, TX, United States of America

Richard Adam Cesari